Page 1 GE Digital Energy LISTED 650 Markland Street IND.CONT. EQ. 52TL Markham, Ontario GE Multilin's Quality Management Canada L6C 0M1 System is registered to ISO 9001:2008 Tel: +1 905 927 7070 Fax: +1 905 927 5098 QMI # 005094 UL # A3775 Internet: http://www.GEDigitalEnergy.com...
Page 2 The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The content of this manual is for informational use only and is subject to change without notice.
Page 3: Table Of Contents
OUTPUTS ......................2-29 2.4.8 COMMUNICATIONS..................2-30 2.4.9 INTER-RELAY COMMUNICATIONS ............... 2-31 2.4.10 ENVIRONMENTAL ..................2-31 2.4.11 TYPE TESTS ....................2-32 2.4.12 PRODUCTION TESTS ..................2-32 2.4.13 APPROVALS ....................2-33 2.4.14 MAINTENANCE ....................2-33 GE Multilin L90 Line Current Differential System...
Page 4 INTRODUCTION TO AC SOURCES..............5-5 5.2 PRODUCT SETUP 5.2.1 SECURITY......................5-8 5.2.2 CYBERSENTRY SECURITY................5-12 5.2.3 DISPLAY PROPERTIES ..................5-18 5.2.4 CLEAR RELAY RECORDS ................5-19 5.2.5 COMMUNICATIONS ..................5-21 5.2.6 MODBUS USER MAP ..................5-50 5.2.7 REAL TIME CLOCK ..................5-50 L90 Line Current Differential System GE Multilin...
Page 5 OVERFREQUENCY ..................5-262 5.7.8 FREQUENCY RATE OF CHANGE..............5-263 5.7.9 SYNCHROCHECK..................5-265 5.7.10 DIGITAL ELEMENTS..................5-269 5.7.11 DIGITAL COUNTERS ..................5-272 5.7.12 MONITORING ELEMENTS ................5-274 5.7.13 PILOT SCHEMES ..................5-297 5.7.14 AUTORECLOSE .................... 5-321 GE Multilin L90 Line Current Differential System...
Page 6 IEC 61580 GOOSE ANALOG VALUES ............6-22 6.3.10 WATTMETRIC GROUND FAULT..............6-23 6.3.11 PHASOR MEASUREMENT UNIT ..............6-23 6.3.12 RESTRICTED GROUND FAULT..............6-24 6.3.13 TRANSDUCER INPUTS AND OUTPUTS ............6-24 6.4 RECORDS 6.4.1 FAULT REPORTS ....................6-25 6.4.2 EVENT RECORDS ...................6-25 L90 Line Current Differential System GE Multilin...
Page 7 9.1.18 CHARGING CURRENT COMPENSATION ............. 9-13 9.1.19 DIFFERENTIAL ELEMENT CHARACTERISTICS........... 9-14 9.1.20 RELAY SYNCHRONIZATION................9-15 9.2 OPERATING CONDITION CHARACTERISTICS 9.2.1 DESCRIPTION....................9-16 9.2.2 TRIP DECISION EXAMPLE................9-18 9.2.3 TRIP DECISION TEST ..................9-18 GE Multilin L90 Line Current Differential System...
Page 8 DISTANCE SETTINGS ON SERIES COMPENSATED LINES ......10-22 10.6.2 GROUND DIRECTIONAL OVERCURRENT ..........10-23 10.7 LINES WITH TAPPED TRANSFORMERS 10.7.1 DESCRIPTION ....................10-24 10.7.2 TRANSFORMER LOAD CURRENTS ............10-24 10.7.3 LV-SIDE FAULTS ...................10-25 10.7.4 EXTERNAL GROUND FAULTS ..............10-25 viii L90 Line Current Differential System GE Multilin...
Page 9 GGIO4: GENERIC ANALOG MEASURED VALUES .........C-2 C.2.6 MMXU: ANALOG MEASURED VALUES............C-3 C.2.7 PROTECTION AND OTHER LOGICAL NODES ..........C-3 C.3 SERVER FEATURES AND CONFIGURATION C.3.1 BUFFERED/UNBUFFERED REPORTING ............C-5 C.3.2 FILE TRANSFER ....................C-5 C.3.3 TIMESTAMPS AND SCANNING ...............C-5 GE Multilin L90 Line Current Differential System...
Page 10 ANALOG INPUTS.................... E-11 F. MISCELLANEOUS F.1 CHANGE NOTES F.1.1 REVISION HISTORY..................F-1 F.1.2 CHANGES TO THE L90 MANUAL ..............F-2 F.2 ABBREVIATIONS F.2.1 STANDARD ABBREVIATIONS ................. F-5 F.3 WARRANTY F.3.1 GE MULTILIN WARRANTY................F-9 L90 Line Current Differential System GE Multilin...
Page 11 (Cd), ólom (Pb) vagy higany (Hg) tartalomra utaló betűjelzés. A hulladék akkumulátor leadható a termék forgalmazójánál új akkumulátor vásárlásakor, vagy a kijelölt elektronikai hulladékudvarokban. További információ a www.recyclethis.info oldalon. GE Multilin L90 Line Current Differential System...
Page 12 Batteriet är märkt med denna symbol, vilket kan innebära att det innehåller kadmium (Cd), bly (Pb) eller kvicksilver (Hg). För korrekt återvinning skall batteriet returneras till leverantören eller till en därför avsedd deponering. För mer information, se: www.recyclethis.info. L90 Line Current Differential System GE Multilin...
Page 13 North America 905-294-6222 Latin America +55 11 3614 1700 Europe, Middle East, Africa +(34) 94 485 88 00 Asia +86-21-2401-3208 India +91 80 41314617 From GE Part Number 1604-0021-A1, GE Publication Number GEK-113574 GE Multilin L90 Line Current Differential System xiii...
Page 14 0.1 BATTERY DISPOSAL 0 BATTERY DISPOSAL L90 Line Current Differential System GE Multilin...
Page 15: Getting Started
This product is rated to Class A emissions levels and is to be used in Utility, Substation Industrial environments. Not to be used near electronic devices rated for Class B levels. Inspection Checklist GE Multilin L90 Line Current Differential System...
Page 16 For product information, instruction manual updates, and the latest software updates, visit the GE Digital Energy website at http://www.gedigitalenergy.com. If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Digital Energy immediately.
Page 17: Ur Overview
This new generation of equipment is easily incorporated into automation systems, at both the station and enterprise levels. The GE Multilin Uni- versal Relay (UR) series meets these goals.
Page 18 The UR-series devices operate in a cyclic scan fashion. The device reads the inputs into an input status table, solves the logic program (FlexLogic equation), and then sets each output to the appropriate state in an output status table. Any result- ing task execution is priority interrupt-driven. Figure 1–3: UR-SERIES SCAN OPERATION L90 Line Current Differential System GE Multilin...
Page 19: Software Architecture
5. An explanation of the use of inputs from CTs and VTs is in the Introduction to AC sources section in chapter 5. A description of how digital signals are used and routed within the relay is contained in the Introduction to FlexLogic section in chapter 5. GE Multilin L90 Line Current Differential System...
Page 20: Enervista Ur Setup Software
PCTEL 2304WT V.92 MDC internal modem 1.3.2 INSTALLATION After ensuring the minimum requirements for using EnerVista UR Setup are met (previous section), install the EnerVista UR Setup from the GE EnerVista CD. Or download the UR EnerVista software from http://www.gedigitalenergy.com/multilin and install it.
Page 21: Configuring The L90 For Software Access
EnerVista UR Setup software. The L90 can also be accessed locally with a laptop computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature. • To configure the L90 for remote access via the rear RS485 port, see the Configuring Serial Communications section. GE Multilin L90 Line Current Differential System...
Page 22 A GE Multilin F485 converter (or compatible RS232-to-RS485 converter) is required. Refer to the F485 instruction manual for details. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section if not already installed.
Page 23 UR device must be on the same subnet. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section for installation details.
Page 24: Using The Quick Connect Feature
Before starting, verify that the serial cable is properly connected from the computer to the front panel RS232 port with a straight-through 9-pin to 9-pin RS232 cable. Verify that the latest version of the EnerVista UR Setup software is installed (available from the GE EnerVista CD or online from http://www.gedigitalenergy.com/multilin). See the Software Installation section if not already installed.
Page 25 Now, assign the computer an IP address compatible with the relay’s IP address. From the Windows desktop, right-click the My Network Places icon and select Properties to open the network con- nections window. Right-click the Local Area Connection icon and select Properties. GE Multilin L90 Line Current Differential System 1-11...
Page 26 Minimum = 0ms, Maximum = 0ms, Average = 0 ms Note that the values for vary depending on local network configuration. time If the following sequence of messages appears when entering the command: C:\WINNT>ping 1.1.1.1 1-12 L90 Line Current Differential System GE Multilin...
Page 27 Default Gateway ..: C:\WINNT> It can be necessary to restart the computer for the change in IP address to take effect (Windows 98 or NT). GE Multilin L90 Line Current Differential System 1-13...
Page 28 From the Windows desktop, right-click the My Network Places icon and select Properties to open the network con- nections window. Right-click the Local Area Connection icon and select the Properties item. Select the Internet Protocol (TCP/IP) item from the list provided and click the Properties button. 1-14 L90 Line Current Differential System GE Multilin...
Page 29 The EnerVista UR Setup software then proceeds to configure all settings and order code options in the Device Setup menu. This feature allows the user to identify and interrogate all UR-series devices at a loca- tion. GE Multilin L90 Line Current Differential System 1-15...
Page 30: Connecting To The L90 Relay
View the last recorded oscillography record • View the status of all L90 inputs and outputs • View all of the L90 metering values • View the L90 protection summary • Generate a service report 1-16 L90 Line Current Differential System GE Multilin...
Page 31: Ur Hardware
Figure 1–7: RELAY COMMUNICATION OPTIONS To communicate through the L90 rear RS485 port from a computer RS232 port, the GE Multilin RS232/RS485 converter box is required. This device (catalog number F485) connects to the computer using a straight-through serial cable. A shielded twisted-pair (20, 22, or 24 AWG) connects the F485 converter to the L90 rear communications port.
Page 32: Using The Relay
To put the relay in the “Programmed” state, press either of the VALUE keys once and then press ENTER. The face- plate Trouble LED turns off and the In Service LED turns on. 1-18 L90 Line Current Differential System GE Multilin...
Page 33: Relay Passwords
See the Changing Settings section in Chapter 4 for complete instructions on setting security-level passwords. 1.5.6 FLEXLOGIC CUSTOMIZATION NOTE FlexLogic equation editing is required for setting user-defined logic for customizing the relay operations. See the FlexLogic section in Chapter 5. GE Multilin L90 Line Current Differential System 1-19...
Page 34: Commissioning
Unscheduled maintenance, such as a disturbance causing system interruption: View the event recorder and oscillography or fault report for correct operation of inputs, outputs, and elements. If it is concluded that the relay or one of its modules is of concern, contact GE Multilin for service. 1-20...
Page 35: Product Description
The L90 uses per phase differential at 64 kbps transmitting two phaselets per cycle. The current differential scheme is based on innovative patented techniques developed by GE. The L90 algorithms are based on the Fourier transform– phaselet approach and an adaptive statistical restraint. The restraint is similar to a traditional percentage differential scheme, but is adaptive based on relay measurements.
Page 36 Direct Inputs (8 per L90 comms channel) Non-Volatile Selector Switch VT Fuse Failure Disconnect Switches Open Pole Detector DNP 3.0 or IEC 60870-5-104 protocol Oscillography Event Recorder Pilot Schemes Fault Locator Setting Groups (6) L90 Line Current Differential System GE Multilin...
Page 37: Features
Zero-sequence removal for application on lines with tapped transformers connected in a grounded wye on the line side • GE phaselets approach based on the Discrete Fourier Transform with 64 samples per cycle and transmitting two time- stamped phaselets per cycle •...
Page 38: Ordering
Each of these modules can be supplied in a number of configurations specified at the time of ordering. The information required to completely specify the relay is provided in the following tables (see chapter 3 for full details of relay modules). Order codes are subject to change without notice. See the GE Multilin ordering page at http://www.gedigitalenergy.com/multilin/order.htm for the latest ordering options.
Page 39 IEEE 1588, PRP, CyberSentry Lvl 1, In-zone transformer protection, IEC 61850, Breaker-and-a-half IEEE 1588, PRP, CyberSentry Lvl 1, In-zone transformer protection, breaker-and-a-hal, and PMU IEEE 1588, PRP, CyberSentry Lvl 1, In-zone Tx protection, IEC 61850, breaker-and-a half, and PMU GE Multilin L90 Line Current Differential System...
Page 40 CyberSentry Lvl 1, IEC 61850, and Breaker-and-a-half CyberSentry Lvl 1 and PMU CyberSentry Lvl 1, IEC 61850, and PMU CyberSentry Lvl 1, PMU, and Breaker-and-a-half CyberSentry Lvl 1, IEC 61850, PMU, and Breaker-and-a-half L90 Line Current Differential System GE Multilin...
Page 41 Enhanced front panel with Russian display and user-programmable pushbuttons Enhanced front panel with Chinese display and user-programmable pushbuttons Enhanced front panel with Turkish display Enhanced front panel with Turkish display and user-programmable pushbuttons GE Multilin L90 Line Current Differential System...
Page 42 IEEE 1588, IEC 61850, and In-zone transformer protection IEEE 1588, PMU, and In-zone transformer protection IEEE 1588, IEC 61850, PMU, and In-zone transformer protection Parallel Redundancy Protocol (PRP) PRP and Breaker-and-a-half PRP and IEC 61850 PRP, IEC 61850, and Breaker-and-a-half L90 Line Current Differential System GE Multilin...
Page 43 IEEE 1588, PRP, CyberSentry Lvl 1, In-zone transformer protection, IEC 61850, Breaker-and-a-half IEEE 1588, PRP, CyberSentry Lvl 1, In-zone transformer protection, breaker-and-a-hal, and PMU IEEE 1588, PRP, CyberSentry Lvl 1, In-zone Tx protection, IEC 61850, breaker-and-a half, and PMU GE Multilin L90 Line Current Differential System...
Page 44 CyberSentry Lvl 1, IEC 61850, PMU, and In-zone transformer protection IEEE 1588 IEEE 1588 and Breaker-and-a-half IEEE 1588 and IEC 61850 IEEE 1588, IEC 61850, and Breaker-and-a-half IEEE 1588 and PMU IEEE 1588, IEC 61850, and PMU 2-10 L90 Line Current Differential System GE Multilin...
Page 45 Enhanced front panel with English display and user-programmable pushbuttons Enhanced front panel with French display and user-programmable pushbuttons Enhanced front panel with Russian display and user-programmable pushbuttons Enhanced front panel with Chinese display and user-programmable pushbuttons GE Multilin L90 Line Current Differential System 2-11...
Page 46: Replacement Modules
Not all replacement modules may be applicable to the L90 relay. Only the modules specified in the order codes are available as replacement modules. NOTE Replacement module codes are subject to change without notice. See the GE Multilin ordering page at http://www.gedigitalenergy.com/multilin/order.htm for the latest L90 ordering options.
Page 47 4 dcmA inputs, 4 dcmA outputs (only one 5A module is allowed) 8 RTD inputs INPUTS/OUTPUTS 4 RTD inputs, 4 dcmA outputs (only one 5D module is allowed) 4 dcmA inputs, 4 RTD inputs 8 dcmA inputs GE Multilin L90 Line Current Differential System 2-13...
Page 48 4 dcmA inputs, 4 dcmA outputs (only one 5A module is allowed) 8 RTD inputs INPUTS/OUTPUTS 4 RTD inputs, 4 dcmA outputs (only one 5D module is allowed) 4 dcmA inputs, 4 RTD inputs 8 dcmA inputs 2-14 L90 Line Current Differential System GE Multilin...
Page 49: Pilot Channel Relaying
Receives current differential DTT and Direct Input signals from all other L90 relays • Transmits direct output signals to all communicating relays • Sends synchronization information of local clock to all other L90 clocks The master L90 relay performs the following functions: GE Multilin L90 Line Current Differential System 2-15...
Page 50: Channel Monitor
Every relay on the protec- tion system can assigned an unique ID to prevent advertent loopbacks at multiplexed channels. 2-16 L90 Line Current Differential System GE Multilin...
Page 51: Loopback Test
L90 communications channel to create trip, block, or signaling logic. A FlexLogic operand, an external contact closure, or a signal over the LAN communication channels can be assigned for that logic. GE Multilin L90 Line Current Differential System...
Page 52: Functionality
The processors in the CPU and all CT/VT modules participate in startup self-testing. Self-testing checks approximately 85 to 90% of the hardware, and CRC/check-sum verification of all PROMs is performed. The proces- 2-18 L90 Line Current Differential System GE Multilin...
Page 53: Other Functions
PFLL Status Frequency Deviation Phase and Frequency Master Locked Loop (PFLL) Clock Phase Deviation PHASELETS TO REMOTE Communications Remote Relay PHASELETS FROM REMOTE Interface Direct Transfer Trip 831732A3.CDR Figure 2–3: L90 BLOCK DIAGRAM GE Multilin L90 Line Current Differential System 2-19...
Page 54: Specifications
1 to 1.5 cycles (typical) Reset time: 1 power cycle (typical) LINE PICKUP Phase instantaneous overcurrent: 0.000 to 30.000 pu Undervoltage pickup: 0.000 to 3.000 pu Overvoltage delay: 0.000 to 65.535 s 2-20 L90 Line Current Differential System GE Multilin...
Page 55 Breakpoint between slopes: 0.0 to 20.0 pu in steps of 0.1 Curve shapes: IEEE Moderately/Very/Extremely Zero-sequence current differential (87LG): Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ 87LG pickup level: 0.05 to 1.00 pu in steps of 0.01 Extremely Inverse; I t; FlexCurves™...
Page 56 –90 to 90° in steps of 1 Inverse; IEC (and BS) A/B/C and Short Limit angle: 40 to 90° in steps of 1, independent for Inverse; GE IAC Inverse, Short/Very/ forward and reverse Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s Angle accuracy: ±2°...
Page 57 ±3% of operate time or ±1/4 cycle Level accuracy: ±0.5% of reading from 10 to 208 V (whichever is greater) Curve shapes: GE IAV Inverse, Definite Time Operate time: typically 4 cycles at 0.1 Hz/s change typically 3.5 cycles at 0.3 Hz/s change Curve multiplier: Time Dial = 0 to 600.00 in steps of 0.01...
Page 58 ±2° Characteristic limit angles: 40 to 140° in steps of 1 Timers: 0.000 to 65.535 s in steps of 0.001 Timer accuracy: ±3% of operate time or ±1/4 cycle (whichever is greater) 2-24 L90 Line Current Differential System GE Multilin...
Page 59: User-Programmable Elements
LEDs on Test sequence 2: all LEDs off, one LED at a time on for 1 s Test sequence 3: all LEDs on, one LED at a time off for 1 s GE Multilin L90 Line Current Differential System 2-25...
Page 60: Monitoring
Storage capacity: (NN is dependent on memory) 1-second rate: 01 channel for NN days 16 channels for NN days  60-minute rate: 01 channel for NN days 16 channels for NN days 2-26 L90 Line Current Differential System GE Multilin...
Page 61: Metering
Phases A, B, and C present and maxi- CT rating and 0.8 to mum measured currents 1.2 x VT rating: ±1.0% of reading 3-Phase Power (P, Q, and S) present and maximum measured currents Accuracy: ±2.0% GE Multilin L90 Line Current Differential System 2-27...
Page 62: Inputs
< 1 ms Remote devices: Debounce time: 0.0 to 16.0 ms in steps of 0.5 Default states on loss of comms.: On, Off, Latest/Off, Latest/On Continuous current draw:3 mA (when energized) Remote DPS inputs: 2-28 L90 Line Current Differential System GE Multilin...
Page 63: Power Supply
Operate time: < 0.6 ms FORM-A VOLTAGE MONITOR Internal Limiting Resistor: 100 , 2 W Applicable voltage: approx. 15 to 250 V DC Trickle current: approx. 1 to 2.5 mA GE Multilin L90 Line Current Differential System 2-29...
Page 64: Communications
Typical distance 2 km Duplex full/half Redundancy ETHERNET (10/100 MB TWISTED PAIR) Modes: 10 MB, 10/100 MB (auto-detect) Connector: RJ45 SIMPLE NETWORK TIME PROTOCOL (SNTP) clock synchronization error: <10 ms (typical) 2-30 L90 Line Current Differential System GE Multilin...
Page 65: Inter-Relay Communications
Pollution degree: impaired at temperatures less than – Overvoltage category: 20°C Ingress protection: IP20 front, IP10 back HUMIDITY Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days). GE Multilin L90 Line Current Differential System 2-31...
Page 66: Type Tests
Safety UL508 e83849 NKCR Safety UL C22.2-14 e83849 NKCR7 Safety UL1053 e83849 NKCR 2.4.12 PRODUCTION TESTS THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. 2-32 L90 Line Current Differential System GE Multilin...
Page 67: Approvals
To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energized state once per year, for one hour continuously. GE Multilin L90 Line Current Differential System 2-33...
Page 68 2.4 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2-34 L90 Line Current Differential System GE Multilin...
Page 69: Hardware
11.016” [279,81 mm] 9.687” [246,05 mm] 17.56” [446,02 mm] 7.460” [189,48 mm] 6.995” 6.960” [177,67 mm] [176,78 mm] 19.040” [483,62 mm] 842807A1.CDR Figure 3–1: L90 HORIZONTAL DIMENSIONS (ENHANCED PANEL) GE Multilin L90 Line Current Differential System...
Page 70 The case dimensions are shown below, along with panel cutout details for panel mounting. When planning the location of your panel cutout, ensure that provision is made for the faceplate to swing open without interference to or from adjacent equipment. L90 Line Current Differential System GE Multilin...
Page 71 RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. 11.015” 7.482” 1.329” 13.560” 15.000” 14.025” 4.000” 9.780” 843809A1.CDR Figure 3–4: L90 VERTICAL DIMENSIONS (ENHANCED PANEL) GE Multilin L90 Line Current Differential System...
Page 72 Figure 3–5: L90 VERTICAL MOUNTING AND DIMENSIONS (STANDARD PANEL) For details on side mounting L90 devices with the enhanced front panel, refer to the following documents available online from the GE Multilin website. • GEK-113180: UR-series UR-V side-mounting front panel assembly instructions.
Page 73 3 HARDWARE 3.1 DESCRIPTION Figure 3–6: L90 VERTICAL SIDE MOUNTING INSTALLATION (STANDARD PANEL) GE Multilin L90 Line Current Differential System...
Page 74: Module Withdrawal And Insertion
The enhanced faceplate can be opened to the left, once the thumb screw has been removed, as shown below. This allows for easy accessibility of the modules for withdrawal. The new wide-angle hinge assembly in the enhanced front panel opens completely and allows easy access to all modules in the L90. L90 Line Current Differential System GE Multilin...
Page 75 The new CT/VT modules can only be used with new CPUs; similarly, old CT/VT modules can only be used with old CPUs. In the event that there is a mismatch between the CPU and CT/VT module, the relay does not function and error displays. NOTE DSP ERROR HARDWARE MISMATCH GE Multilin L90 Line Current Differential System...
Page 76: Rear Terminal Layout
(nearest to CPU module) which is indicated by an arrow marker on the terminal block. See the following figure for an example of rear terminal assignments. Figure 3–11: EXAMPLE OF MODULES IN F AND H SLOTS L90 Line Current Differential System GE Multilin...
Page 77: Wiring
3 HARDWARE 3.2 WIRING 3.2WIRING 3.2.1 TYPICAL WIRING Figure 3–12: TYPICAL WIRING DIAGRAM GE Multilin L90 Line Current Differential System...
Page 78: Dielectric Strength
An LED on the front of the control power module shows the status of the power supply: LED INDICATION POWER SUPPLY CONTINUOUS ON ON / OFF CYCLING Failure Failure 3-10 L90 Line Current Differential System GE Multilin...
Page 79: Ct/Vt Modules
CT connections for both ABC and ACB phase rotations are identical as shown in the Typical wiring diagram. The exact placement of a zero-sequence core balance CT to detect ground fault current is shown below. Twisted-pair cabling on the zero-sequence CT is recommended. GE Multilin L90 Line Current Differential System 3-11...
Page 80 NOTE Current inputs Voltage inputs 8F, 8G, 8L, and 8M modules (4 CTs and 4 VTs) Current inputs 8H, 8J, 8N, and 8R modules (8 CTs) 842766A3.CDR Figure 3–15: CT/VT MODULE WIRING 3-12 L90 Line Current Differential System GE Multilin...
Page 81: Process Bus Modules
3.2.5 PROCESS BUS MODULES The L90 can be ordered with a process bus interface module. This module is designed to interface with the GE Multilin HardFiber system, allowing bidirectional IEC 61850 fiber optic communications with up to eight HardFiber merging units, known as Bricks.
Page 82 Logic operand driving the contact output should be given a reset delay of 10 ms to prevent damage of the output contact (in situations when the element initiating the contact output is bouncing, at val- ues in the region of the pickup value). 3-14 L90 Line Current Differential System GE Multilin...
Page 83 ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs GE Multilin L90 Line Current Differential System 3-15...
Page 84 ~5a, ~5c 2 Inputs 2 Outputs Solid-State Solid-State ~6a, ~6c 2 Inputs 2 Outputs Not Used Not Used ~7a, ~7c 2 Inputs 2 Outputs Solid-State Solid-State ~8a, ~8c 2 Inputs Not Used 3-16 L90 Line Current Differential System GE Multilin...
Page 85 3 HARDWARE 3.2 WIRING Figure 3–17: CONTACT INPUT AND OUTPUT MODULE WIRING (1 of 2) GE Multilin L90 Line Current Differential System 3-17...
Page 86 CONTACT IN COMMON SURGE 842763A2.CDR Figure 3–18: CONTACT INPUT AND OUTPUT MODULE WIRING (2 of 2) For proper functionality, observe correct polarity for all contact input and solid state output connec- tions. 3-18 L90 Line Current Differential System GE Multilin...
Page 87 There is no provision in the relay to detect a DC ground fault on 48 V DC control power external output. We recom- mend using an external DC supply. NOTE GE Multilin L90 Line Current Differential System 3-19...
Page 88 CONTACT INPUT 2 AUTO-BURNISH = ON 842751A1.CDR Figure 3–21: AUTO-BURNISH DIP SWITCHES The auto-burnish circuitry has an internal fuse for safety purposes. During regular maintenance, check the auto- burnish functionality using an oscilloscope. NOTE 3-20 L90 Line Current Differential System GE Multilin...
Page 89: Transducer Inputs And Outputs
(5A, 5C, 5D, 5E, and 5F) and channel arrangements that can be ordered for the relay. Wherever a tilde “~” symbol appears, substitute with the slot position of the module. NOTE Figure 3–22: TRANSDUCER INPUT/OUTPUT MODULE WIRING GE Multilin L90 Line Current Differential System 3-21...
Page 90: Rs232 Faceplate Port
3.2.9 CPU COMMUNICATION PORTS a) OPTIONS In addition to the faceplate RS232 port, the L90 provides a rear RS485 communication port. The CPU modules do not require a surge ground connection. NOTE 3-22 L90 Line Current Differential System GE Multilin...
Page 91 For larger systems, additional serial channels must be added. It is also possible to use com- mercially available repeaters to have more than 32 relays on a single channel. Avoid star or stub connections entirely. GE Multilin L90 Line Current Differential System...
Page 92 62.5 µm for 100 Mbps. For optical power budgeting, splices are required every 1 km for the transmitter/receiver pair. When splicing optical fibers, the diameter and numerical aperture of each fiber must be the same. 3-24 L90 Line Current Differential System GE Multilin...
Page 93: Irig-B
Using an amplitude modulated receiver causes errors up to 1 ms in event time-stamping. NOTE Using an amplitude modulated receiver also causes errors of up to 1 ms in metered synchrophasor values. NOTE GE Multilin L90 Line Current Differential System 3-25...
Page 94: Pilot Channel Communications
RS422, 1 channel RS422, 2 channels, 2 clock inputs RS422, 2 channels All of the fiber modules use ST type connectors. For two-terminal applications, each L90 relay requires at least one com- munications channel. 3-26 L90 Line Current Differential System GE Multilin...
Page 95: Fiber: Led And Eled Transmitters
The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser module. Figure 3–28: LASER FIBER MODULES When using a laser Interface, attenuators can be necessary to ensure that you do not exceed the maximum optical input power to the receiver. GE Multilin L90 Line Current Differential System 3-27...
Page 96: Interface
Remove the top cover by sliding it towards the rear and then lift it upwards. Set the timing selection switches (channel 1, channel 2) to the desired timing modes. Replace the top cover and the cover screw. 3-28 L90 Line Current Differential System GE Multilin...
Page 97 For connection to a higher order system (UR- to-multiplexer, factory defaults), set to octet timing (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). GE Multilin L90 Line Current Differential System 3-29...
Page 98 G.703 line side of the interface while the other lies on the differential Manchester side of the interface. DMR = Differential Manchester Receiver DMX = Differential Manchester Transmitter G7X = G.703 Transmitter G7R = G.703 Receiver 842775A1.CDR Figure 3–33: G.703 DUAL LOOPBACK MODE 3-30 L90 Line Current Differential System GE Multilin...
Page 99: Rs422 Interface
(data module 1), connects to the clock inputs of the UR–RS422 interface in the usual fashion. In addition, the send timing outputs of data module 1 is also paralleled to the terminal timing inputs of data module 2. By using this con- GE Multilin L90 Line Current Differential System...
Page 100 For example, the following figure shows the positive edge of the Tx clock in the center of the Tx data bit. Tx Clock Tx Data Figure 3–37: CLOCK AND DATA TRANSITIONS 3-32 L90 Line Current Differential System GE Multilin...
Page 101: Two-Channel Two-Clock Rs422 Interface
When using a LASER Interface, attenuators can be necessary to ensure that you do not exceed maximum optical input power to the receiver. Figure 3–39: RS422 AND FIBER INTERFACE CONNECTION Connections shown above are for multiplexers configured as DCE (data communications equipment) units. GE Multilin L90 Line Current Differential System 3-33...
Page 102: And Fiber Interface
Connection: as per all fiber optic connections, a Tx to Rx connection is required The UR-series C37.94 communication module can be connected directly to any compliant digital multiplexer that supports the IEEE C37.94 standard as shown below. 3-34 L90 Line Current Differential System GE Multilin...
Page 103 Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is fully inserted. GE Multilin L90 Line Current Differential System...
Page 104 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE Figure 3–41: IEEE C37.94 TIMING SELECTION SWITCH SETTING 3-36 L90 Line Current Differential System GE Multilin...
Page 105 Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit" • Solid red — FPGA is not receiving a valid packet or the packet received is invalid GE Multilin L90 Line Current Differential System 3-37...
Page 106: C37.94Sm Interface
For the internal timing mode, the system clock is generated internally. Therefore, the timing switch selection should be internal timing for relay 1 and loop timed for relay 2. There must be only one timing source configured. 3-38 L90 Line Current Differential System GE Multilin...
Page 107 Once the clips have cleared the raised edge of the chassis, engage the clips simultaneously. When the clips have locked into position, the module is fully inserted. Figure 3–43: C37.94SM TIMING SELECTION SWITCH SETTING GE Multilin L90 Line Current Differential System 3-39...
Page 108 Solid yellow — FPGA is receiving a "yellow bit" and remains yellow for each "yellow bit" • Solid red — FPGA is not receiving a valid packet or the packet received is invalid 3-40 L90 Line Current Differential System GE Multilin...
Page 109: Human Interfaces
Factory default values are supplied and can be restored after any changes. The following communications settings are not transferred to the L90 with settings files. Modbus Slave Address Modbus IP Port Number RS485 COM2 Baud Rate RS485 COM2 Parity COM2 Minimum Response Time GE Multilin L90 Line Current Differential System...
Page 110 EEPROM DATA ERROR message intended to inform users that the Modbus addresses have changed with the upgraded firmware. This message does not signal any problems when appearing after firmware upgrades. L90 Line Current Differential System GE Multilin...
Page 111: Enervista Ur Setup Main Window
Device data view windows, with common tool bar Settings file data view windows, with common tool bar Workspace area with data view tabs Status bar 10. Quick action hot links 842786A2.CDR Figure 4–1: ENERVISTA UR SETUP SOFTWARE MAIN WINDOW GE Multilin L90 Line Current Differential System...
Page 112: Extended Enervista Ur Setup Features
Select the Template Mode > Edit Template option to place the device in template editing mode. Enter the template password then click OK. Open the relevant settings windows that contain settings to be specified as viewable. L90 Line Current Differential System GE Multilin...
Page 113 The following procedure describes how to add password protection to a settings file template. Select a settings file from the offline window on the left of the EnerVista UR Setup main screen. Selecting the Template Mode > Password Protect Template option. GE Multilin L90 Line Current Differential System...
Page 114 Template Mode > View In Template Mode command. The template specifies that only the Pickup Curve Phase time overcurrent settings window without template applied. settings be available. 842858A1.CDR Figure 4–4: APPLYING TEMPLATES VIA THE VIEW IN TEMPLATE MODE COMMAND L90 Line Current Differential System GE Multilin...
Page 115 Select an installed device or settings file from the tree menu on the left of the EnerVista UR Setup main screen. Select the Template Mode > Remove Settings Template option. Enter the template password and click OK to continue. GE Multilin L90 Line Current Differential System...
Page 116: Securing And Locking Flexlogic Equations
Click on Save to save and apply changes to the settings template. Select the Template Mode > View In Template Mode option to view the template. Apply a password to the template then click OK to secure the FlexLogic equation. L90 Line Current Differential System GE Multilin...
Page 117 FlexLogic entries in a settings file have been secured, use the following procedure to lock the settings file to a specific serial number. Select the settings file in the offline window. Right-click on the file and select the Edit Settings File Properties item. GE Multilin L90 Line Current Differential System...
Page 118: Settings File Traceability
L90 device. Any partial settings transfers by way of drag and drop do not add the traceability information to the settings file. Figure 4–11: SETTINGS FILE TRACEABILITY MECHANISM With respect to the above diagram, the traceability feature is used as follows. 4-10 L90 Line Current Differential System GE Multilin...
Page 119 Figure 4–12: DEVICE DEFINITION SHOWING TRACEABILITY DATA This information is also available in printed settings file reports as shown in the example below. Traceability data in settings report 842862A1.CDR Figure 4–13: SETTINGS FILE REPORT SHOWING TRACEABILITY DATA GE Multilin L90 Line Current Differential System 4-11...
Page 120 If the user converts an existing settings file to another revision, then any existing traceability information is removed from the settings file. • If the user duplicates an existing settings file, then any traceability information is transferred to the duplicate settings file. 4-12 L90 Line Current Differential System GE Multilin...
Page 121: Faceplate Interface
LED panel 2 LED panel 3 Display Front panel RS232 port Small user-programmable User-programmable Keypad (control) pushbuttons 1 to 7 pushbuttons 1 to 12 827801A . Figure 4–16: UR-SERIES STANDARD HORIZONTAL FACEPLATE PANELS GE Multilin L90 Line Current Differential System 4-13...
Page 122: Led Indicators
The status indicators in the first column are described below. • IN SERVICE: This LED indicates that control power is applied, all monitored inputs, outputs, and internal systems are OK, and that the device has been programmed. 4-14 L90 Line Current Differential System GE Multilin...
Page 123 IN SERVICE VOLTAGE TROUBLE CURRENT RESET TEST MODE FREQUENCY TRIP OTHER USER 1 ALARM PHASE A PICKUP USER 2 PHASE B PHASE C NEUTRAL/GROUND USER 3 842781A1.CDR Figure 4–19: LED PANEL 1 GE Multilin L90 Line Current Differential System 4-15...
Page 124 LEDs on these panels. USER-PROGRAMMABLE LEDS USER-PROGRAMMABLE LEDS 842782A1.CDR Figure 4–20: LED PANELS 2 AND 3 (INDEX TEMPLATE) DEFAULT LABELS FOR LED PANEL 2: The default labels are intended to represent: 4-16 L90 Line Current Differential System GE Multilin...
Page 125: Custom Labeling Of Leds
EnerVista UR Setup software is installed and operational • The L90 settings have been saved to a settings file • The L90 front panel label cutout sheet (GE Multilin part number 1006-0047) has been downloaded from http://www.gedigitalenergy.com/products/support/ur/URLEDenhanced.doc and printed •...
Page 126 Remove the L90 label insert tool from the package and bend the tabs as described in the following procedures. These tabs are used for removal of the default and custom LED labels. It is important that the tool be used EXACTLY as shown below, with the printed side containing the GE part number facing the user.
Page 127 Use the knife to lift the LED label and slide the label tool underneath. Make sure the bent tabs are pointing away from the relay. Slide the label tool under the LED label until the tabs snap out as shown below. This attaches the label tool to the LED label. GE Multilin L90 Line Current Differential System 4-19...
Page 128 Use the knife to lift the pushbutton label and slide the tail of the label tool underneath, as shown below. Make sure the bent tab is pointing away from the relay. 4-20 L90 Line Current Differential System GE Multilin...
Page 129 Slide the label tool under the user-programmable pushbutton label until the tabs snap out as shown below. This attaches the label tool to the user-programmable pushbutton label. Remove the tool and attached user-programmable pushbutton label as shown below. GE Multilin L90 Line Current Differential System 4-21...
Page 130 The panel templates provide relative LED locations and located example text (x) edit boxes. The following procedure demonstrates how to install/uninstall the custom panel labeling. Remove the clear Lexan Front Cover (GE Multilin part number: 1501-0014). Push in...
Page 131: Display
Microsoft Word 97 or later software for editing the template • 1 each of: 8.5" x 11" white paper, exacto knife, ruler, custom display module (GE Multilin Part Number: 1516-0069), and a custom module cover (GE Multilin Part Number: 1502-0015) The following procedure describes how to customize the L90 display module: Open the LED panel customization template with Microsoft Word.
Page 132: Menus
Each press of the MENU key advances through the following main heading pages: • Actual values • Settings • Commands • Targets • User displays (when enabled) 4-24 L90 Line Current Differential System GE Multilin...
Page 133 Properties. TIME: 1.0 s  To view the remaining settings associated with the Display Properties subheader, DEFAULT MESSAGE repeatedly press the MESSAGE DOWN key. The last message appears as shown. INTENSITY: 25% GE Multilin L90 Line Current Differential System 4-25...
Page 134: Changing Settings
ENTERING ALPHANUMERIC TEXT Text settings have data values which are fixed in length, but user-defined in character. They can be upper case letters, lower case letters, numerals, and a selection of special characters. 4-26 L90 Line Current Differential System GE Multilin...
Page 135: Settings
When the "NEW SETTING HAS BEEN STORED" message appears, the relay is in "Programmed" state and the In Service LED turns on. e) ENTERING INITIAL PASSWORDS The L90 supports password entry from a local or remote connection. GE Multilin L90 Line Current Differential System 4-27...
Page 136 FlexLogic operand is set to “On” and the L90 does not allow settings or command LOCAL ACCESS DENIED level access via the faceplate interface for the next five minutes, or in the event that an incorrect Command Or Setting 4-28 L90 Line Current Differential System GE Multilin...
Page 137 L90 does not allow Settings or Command access via the any external communications interface for the next ten minutes. FlexLogic operand is set to “Off” after the expiration of the ten-minute timeout. REMOTE ACCESS DENIED GE Multilin L90 Line Current Differential System 4-29...
Page 138 4.3 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4-30 L90 Line Current Differential System GE Multilin...
Page 139: Overview
 SETTINGS  AC INPUTS See page 5-79.  SYSTEM SETUP   POWER SYSTEM See page 5-80.   SIGNAL SOURCES See page 5-81.   87L POWER SYSTEM See page 5-84.  GE Multilin L90 Line Current Differential System...
Page 140  UNDERFREQUENCY See page 5-261.   OVERFREQUENCY See page 5-262.   FREQUENCY RATE See page 5-263.  OF CHANGE  SYNCHROCHECK See page 5-265.   DIGITAL ELEMENTS See page 5-269.  L90 Line Current Differential System GE Multilin...
Page 141  DCMA INPUTS See page 5-348.  TRANSDUCER I/O   RTD INPUTS See page 5-349.   DCMA OUTPUTS See page 5-351.   SETTINGS TEST MODE See page 5-354.  TESTING FUNCTION: Disabled GE Multilin L90 Line Current Differential System...
Page 142: Introduction To Elements
For wye-connected VTs, the secondary nominal voltage (1 pu) would be: 13800 --------------- -  --------- - 66.4 V (EQ 5.2) 14400 Many settings are common to most elements and are discussed below: L90 Line Current Differential System GE Multilin...
Page 143: Introduction To Ac Sources
A given source may contain all or some of the following signals: three-phase currents, single-phase ground current, three-phase voltages and an auxiliary voltages from a single-phase VT for checking for synchronism. GE Multilin L90 Line Current Differential System...
Page 144 The CT/VT modules calculate total waveform RMS levels, fundamental frequency phasors, symmetrical components and harmonics for voltage or current, as allowed by the hardware in each channel. These modules may calculate other parameters as directed by the CPU module. L90 Line Current Differential System GE Multilin...
Page 145 CTs on each of two breakers is required to measure the winding current flow. GE Multilin L90 Line Current Differential System...
Page 146: Product Setup
“0”, the password security feature is disabled. As shown in the figures, the window indicates when the password is at the default and when the password has been set. Figure 5–2: WINDOW INDICATES DEFAULT PASSWORD (LEFT) AND PASSWORD SET (RIGHT) The L90 supports password entry from a local or remote connection. L90 Line Current Differential System GE Multilin...
Page 147 Accessibility automatically reverts to the “Restricted” level according to the access level timeout setting values. If an entered password is lost (or forgotten), consult the factory with the corresponding ENCRYPTED PASSWORD GE Multilin L90 Line Current Differential System...
Page 148 PASSWORD LOCKOUT DURATION: This setting specifies the time that the L90 will lockout password access after the number of invalid password entries specified by the setting has occurred. INVALID ATTEMPTS BEFORE LOCKOUT 5-10 L90 Line Current Differential System GE Multilin...
Page 149 ACCESS AUTH TIMEOUT: This setting represents the timeout delay for local setting access. This setting is applicable when the setting is programmed to any operand except “On”. The state of the FlexLogic operand LOCAL SETTING AUTH GE Multilin L90 Line Current Differential System 5-11...
Page 150: Cybersentry Security
The choice of authentication type (server versus device) and the capacity to configure server parameters are available only in the EnerVista software. 5-12 L90 Line Current Differential System GE Multilin...
Page 151 UR device for successful authentication, and the shortname is a short, optional alias that can be used in place of the IP address. client 10.0.0.2/24 { secret = testing123 shortname = private-network-1 e. In the <Path_to_Radius>\etc\raddb folder, create a file called dictionary.ge and add the following content. # ########################################################## GE VSAs ############################################################ VENDOR...
Page 152 Set up the RADIUS client on the UR as follows. Access Device > Settings > Product Setup > Security. Configure the IP address and ports for the RADIUS server. Leave the GE vendor ID field at the default of 2910. Update the RADIUS shared secret as specified in the CLIENTS.CONF file.
Page 153 PRODUCT SETUP SECURITY SESSION SETTINGS Range: 0 to 99  SESSION SESSION LOCKOUT:  SETTINGS Range: 0 to 9999 minutes SESSION LOCKOUT MESSAGE PERIOD: 3 min The following session settings are available. GE Multilin L90 Line Current Differential System 5-15...
Page 154 No passwords for allowed RBAC levels No SSH tunneling The bypass options are as follows: • Local — Bypasses authentication for push buttons, keypad, RS232, and RS485 • Remote — Bypasses authentication for Ethernet 5-16 L90 Line Current Differential System GE Multilin...
Page 155 Settings Lock: If this setting is Enabled then an unauthorized write attempt to a setting for a given role activates this self test.      PATH: SETTINGS PRODUCT SETUP SECURITY SUPERVISORY SELF TESTS FAILED AUTHENTICATE Range: Enabled, Disabled  FAILED FAILED AUTHENTICATE:  AUTHENTICATE Enabled GE Multilin L90 Line Current Differential System 5-17...
Page 156: Display Properties
The L90 applies a cut-off value to the magnitudes and angles of the measured voltages. If the magnitude is below the cut-off level, it is substituted with zero. This operation applies to phase and auxiliary voltages, and symmetrical 5-18 L90 Line Current Differential System GE Multilin...
Page 157: Clear Relay Records
CLEAR EVENT RECORDS: MESSAGE Range: FlexLogic operand CLEAR OSCILLOGRAPHY? MESSAGE Range: FlexLogic operand CLEAR DATA LOGGER: MESSAGE Range: FlexLogic operand CLEAR ARC AMPS 1: MESSAGE Range: FlexLogic operand CLEAR ARC AMPS 2: MESSAGE GE Multilin L90 Line Current Differential System 5-19...
Page 158 Set the properties for user-programmable pushbutton 1 by making the following changes in the  SETTINGS PRODUCT   menu: SETUP USER-PROGRAMMABLE PUSHBUTTONS USER PUSHBUTTON 1 “Self-reset” PUSHBUTTON 1 FUNCTION: “0.20 s” PUSHBTN 1 DROP-OUT TIME: 5-20 L90 Line Current Differential System GE Multilin...
Page 159: Communications
When using more than one Ethernet port, configure each to belong to a different network or subnet using the IP addresses and mask, else communication becomes unpredictable when more than one port is configured to the same subnet. GE Multilin L90 Line Current Differential System...
Page 160 The topology shown in the following figure allows communications to SCADA, local configuration/monitoring through EnerVista, and access to the public network shared on the same LAN. No redundancy is provided. Figure 5–3: NETWORK CONFIGURATION FOR SINGLE LAN 5-22 L90 Line Current Differential System GE Multilin...
Page 161 LAN2, to which port 2 (P2) is connected and communications with SCADA on LAN3, to which port 3 (P3) is connected. There is no redundancy. Figure 5–5: MULTIPLE LANS, NO REDUNDANCY GE Multilin L90 Line Current Differential System 5-23...
Page 162 Failover, the operation of ports 2 and 3 is as follows: • Ports 2 and 3 use the port 2 MAC address, IP address, and mask • The configuration fields for IP address and mask on port 3 are hidden 5-24 L90 Line Current Differential System GE Multilin...
Page 163 There is a second type of specialized device used in PRP networks, called RedBox, with the role of connecting Single Attached Nodes (SANs) to a redundant network. UR relays implement only the DANP functionality. The RedBox functionality is not implemented. GE Multilin L90 Line Current Differential System 5-25...
Page 164 1 to 6, that entry becomes a static route and it must meet all the rules listed in the next section, General Conditions to be Satisfied by Static Routes. 5-26 L90 Line Current Differential System GE Multilin...
Page 165 Port 2 (IP address 10.1.2.2) connects the UR to LAN 10.1.2.0/24 and to the EnerVista software through Router 2. Router 2 has an interface on 10.1.2.0/24 and the IP address of this interface is 10.1.2.1. The configuration before release 7.10 was as follows: GE Multilin L90 Line Current Differential System 5-27...
Page 166 COMMUNICATIONS MODBUS PROTOCOL Range: 0 to 254 in steps of 1  MODBUS PROTOCOL MODBUS SLAVE  ADDRESS: 254 Range: 0 to 65535 in steps of 1 MODBUS TCP PORT MESSAGE NUMBER: 5-28 L90 Line Current Differential System GE Multilin...
Page 167 MESSAGE 100000 FACTOR: 1 Range: 0 to 100000000 in steps of 1 DNP CURRENT DEFAULT MESSAGE DEADBAND: 30000 Range: 0 to 100000000 in steps of 1 DNP VOLTAGE DEFAULT MESSAGE DEADBAND: 30000 GE Multilin L90 Line Current Differential System 5-29...
Page 168 FRONT PANEL - RS232, NETWORK - TCP,  NETWORK NETWORK - UDP Range: NONE, COM2 - RS485, DNP CHANNEL 2 PORT: MESSAGE FRONT PANEL - RS232, NETWORK - TCP, COM2 - RS485 NETWORK - UDP 5-30 L90 Line Current Differential System GE Multilin...
Page 169 “DNP Points Lists” L90 web page to view the points lists. This page can be viewed with a web browser by enter- NOTE ing the L90 IP address to access the L90 “Main Menu”, then by selecting the “Device Information Menu” > “DNP Points Lists” menu item. GE Multilin L90 Line Current Differential System 5-31...
Page 170 FlexLogic operand. Refer to the Introduction to FlexLogic section in this chapter for the full range of assignable operands. The menu for the analog input points (DNP) or MME points (IEC 60870-5-104) is shown below. 5-32 L90 Line Current Differential System GE Multilin...
Page 171 The L90 Line Current Differential System is provided with optional IEC 61850 communications capability. This feature is specified as a software option at the time of ordering. Refer to the Ordering section of chap- ter 2 for additional details. GE Multilin L90 Line Current Differential System 5-33...
Page 172 IEC 61850 GSSE application ID name string sent as part of each GSSE message. This GSSE ID string identifies the GSSE message to the receiving device. In L90 releases previous to 5.0x, this name string was repre- sented by the setting. RELAY NAME 5-34 L90 Line Current Differential System GE Multilin...
Page 173 ID for each GOOSE sending device. This value can be left at its default if the feature is not required. Both the GOOSE VLAN settings are required by IEC 61850. PRIORITY GOOSE ETYPE APPID GE Multilin L90 Line Current Differential System 5-35...
Page 174 The aggressive scheme is only supported in fast type 1A GOOSE messages (GOOSEOut 1 and GOOSEOut 2). For slow GOOSE messages (GOOSEOut 3 to GOOSEOut 8) the aggressive scheme is the same as the medium scheme. 5-36 L90 Line Current Differential System GE Multilin...
Page 175 Configure the transmission dataset. Configure the GOOSE service settings. Configure the data. The general steps required for reception configuration are: Configure the reception dataset. Configure the GOOSE service settings. Configure the data. GE Multilin L90 Line Current Differential System 5-37...
Page 176 Configure the GOOSE service settings by making the following changes in the  INPUTS/OUTPUTS REMOTE DEVICES  settings menu: REMOTE DEVICE 1 – to match the GOOSE ID string for the transmitting device. Enter “GOOSEOut_1”. REMOTE DEVICE 1 ID 5-38 L90 Line Current Differential System GE Multilin...
Page 177 The status value for GGIO1.ST.Ind1.stVal is determined by the FlexLogic operand assigned to GGIO1 indication 1. Changes to this operand will result in the transmission of GOOSE messages con- taining the defined dataset. GE Multilin L90 Line Current Differential System 5-39...
Page 178 Received values are used to populate the GGIO3.MX.AnIn1 and higher items. Received values are also available as FlexAnalog parameters (GOOSE analog In1 and up). GGIO3.MX.AnIn1 to GGIO3.MX.AnIn32 can only be used once for all sixteen reception datasets. NOTE 5-40 L90 Line Current Differential System GE Multilin...
Page 179 L90. Clients are still able to connect to the server (L90 relay), but most data values are not updated. This set- ting does not affect GOOSE/GSSE operation. Changes to the setting, setting, and GOOSE dataset take effect when the L90 is restarted. IED NAME LD INST NOTE GE Multilin L90 Line Current Differential System 5-41...
Page 180 275  VT ratio setting • power (real, reactive, and apparent): 46  phase CT primary setting  275  VT ratio setting • • frequency: 90 Hz • power factor: 2 5-42 L90 Line Current Differential System GE Multilin...
Page 181 GGIO4. When this value is NUMBER OF ANALOG POINTS changed, the L90 must be rebooted in order to allow the GGIO4 logical node to be re-instantiated and contain the newly configured number of analog points. GE Multilin L90 Line Current Differential System 5-43...
Page 182 GGIO5 integer inputs. The following setting is available for all GGIO5 configuration points. • GGIO5 UINT IN 1 VALUE: This setting selects the FlexInteger value to drive each GGIO5 integer status value (GGIO5.ST.UIntIn1). This setting is stored as an 32-bit unsigned integer value. 5-44 L90 Line Current Differential System GE Multilin...
Page 183 LLN0 if a user needs some (but not all) data from already existing GGIO1, GGIO4, and MMXU4 points and their quantity is not greater than 64 minus the number items in this dataset. GE Multilin L90 Line Current Differential System...
Page 184 XCBR operating counter status attribute (OpCnt) increments with every operation. Frequent breaker operation can result in very large OpCnt values over time. This setting allows the OpCnt to be reset to “0” for XCBR1. 5-46 L90 Line Current Differential System GE Multilin...
Page 185 Since GSSE/GOOSE messages are multicast Ethernet by specification, they will not usually be forwarded by net- work routers. However, GOOSE messages may be forwarded by routers if the router has been configured for VLAN functionality. NOTE GE Multilin L90 Line Current Differential System 5-47...
Page 186 L90 contains a list and description of all available files (event records, oscillography, etc.). When the is set to 0, the change takes effect when the L90 is restarted. TFTP MAIN UDP PORT NUMBER NOTE 5-48 L90 Line Current Differential System GE Multilin...
Page 187 The IEC 60870-5-104 and DNP protocols cannot be used simultaneously. When the IEC 60870-5-104 FUNCTION setting is set to “Enabled”, the DNP protocol does not operate. When this setting is changed, it takes effect when power to the relay is cycled (off-to-on). NOTE GE Multilin L90 Line Current Differential System 5-49...
Page 188: Modbus User Map
 REAL TIME SYNCRONIZING SOURCE: SNTP, PP/PTP/IRIG-B/SNTP  CLOCK None  PRECISION TIME See below MESSAGE  PROTOCOL (1588)  SNTP PROTOCOL See below MESSAGE   LOCAL TIME See below MESSAGE  5-50 L90 Line Current Differential System GE Multilin...
Page 189 None. To configure and enable PTP and/or SNTP, or to set local time parameters (for example time zone, daylight savings), use the following sections. Precision Time Protocol (1588) GE Multilin L90 Line Current Differential System 5-51...
Page 190 PP, the associated propagation delay and/or latency may not be compensated for, and the time received at the end-device could be in error by more than 100 µs. 5-52 L90 Line Current Differential System GE Multilin...
Page 191 Depending on the characteristics of the device to which the relay is directly linked, VLAN Priority may have no effect. • This setting applies to all of the relay’s PTP capable ports. GE Multilin L90 Line Current Differential System 5-53...
Page 192 123 for normal SNTP operation. If SNTP is not required, close the port by setting it to 0. SNTP UDP PORT NUMBER When the is set to 0, the change takes effect when the L90 is restarted. SNTP UDP PORT NUMBER NOTE 5-54 L90 Line Current Differential System GE Multilin...
Page 193 DAYLIGHT SAVINGS TIME (DST) Note that when IRIG-B time synchronization is active, the local time in the IRIG-B signal contains any daylight savings time offset and so the DST settings are ignored. GE Multilin L90 Line Current Differential System 5-55...
Page 194 5-56 L90 Line Current Differential System GE Multilin...
Page 195 FAULT 1 REPORT TRIG operational fault location calculations. The distance to fault calculations are initiated by this signal. The FAULT REPORT 1 Z1 impedances are entered in secondary ohms. FAULT REPORT 1 Z0 MAG GE Multilin L90 Line Current Differential System 5-57...
Page 196: Oscillography
TRIGGER POSITION: MESSAGE Range: FlexLogic operand TRIGGER SOURCE: MESSAGE Range: Off; 8, 16, 32, 64 samples/cycle AC INPUT WAVEFORMS: MESSAGE 16 samples/cycle  DIGITAL CHANNELS MESSAGE   ANALOG CHANNELS MESSAGE  5-58 L90 Line Current Differential System GE Multilin...
Page 197 FlexLogic operand state recorded in an oscillography trace. The length of each DIGITAL 1(63) CHANNEL oscillography trace depends in part on the number of parameters selected here. Parameters set to “Off” are ignored. Upon startup, the relay will automatically prepare the parameter list. GE Multilin L90 Line Current Differential System 5-59...
Page 198 IB signal on terminal 2 of the CT/VT module in slot F. If there are no CT/VT modules and analog input modules, no analog traces will appear in the file; only the digital traces will appear. 5-60 L90 Line Current Differential System GE Multilin...
Page 199: Data Logger
436380 s 254460 s 3600000 ms 2727.5 235645200 s 340.9 29455200 s 26182800 s Changing any setting affecting data logger operation will clear any data that is currently in the log. NOTE GE Multilin L90 Line Current Differential System 5-61...
Page 200: Demand
D 1 e (EQ 5.6) – where: d = demand value after applying input quantity for time t (in minutes) D = input quantity (constant), and k = 2.3 / thermal 90% response time. 5-62 L90 Line Current Differential System GE Multilin...
Page 201  LEDS   TRIP & ALARM LEDS See page 5–66. MESSAGE   USER-PROGRAMMABLE See page 5–66. MESSAGE  LED1  USER-PROGRAMMABLE MESSAGE  LED2   USER-PROGRAMMABLE MESSAGE  LED48 GE Multilin L90 Line Current Differential System 5-63...
Page 202 The test responds to the position and rising edges of the control input defined by the set- LED TEST CONTROL ting. The control pulses must last at least 250 ms to take effect. The following diagram explains how the test is executed. 5-64 L90 Line Current Differential System GE Multilin...
Page 203 2. Once stage 2 has started, the pushbutton can be released. When stage 2 is completed, stage 3 will automatically start. The test may be aborted at any time by pressing the pushbutton. GE Multilin L90 Line Current Differential System...
Page 204: User-Programmable Leds
AR ENABLED LED 10 operand BREAKER 1 CLOSED LED 22 operand AR DISABLED LED 11 operand BREAKER 1 TROUBLE LED 23 operand AR RIP LED 12 operand LED 24 operand AR LO 5-66 L90 Line Current Differential System GE Multilin...
Page 205: User-Programmable Self-Tests
Firmware revisions 3.2x and older use these three pushbuttons for manual breaker control. This functionality has been retained – if the breaker control feature is configured to use the three pushbuttons, they cannot be used as user-program- mable control pushbuttons. GE Multilin L90 Line Current Differential System 5-67...
Page 206 SYSTEM SETUP/ BREAKERS/BREAKER 1/ BREAKER 1 PUSHBUTTON CONTROL Enabled=1 TIMER FLEXLOGIC OPERAND SYSTEM SETUP/ BREAKERS/BREAKER 2/ CONTROL PUSHBTN 1 ON 100 msec BREAKER 2 PUSHBUTTON CONTROL 842010A2.CDR Enabled=1 Figure 5–12: CONTROL PUSHBUTTON LOGIC 5-68 L90 Line Current Differential System GE Multilin...
Page 207: User-Programmable Pushbuttons
FlexLogic equations, protection elements, and control elements. Typical applications include breaker control, autorecloser blocking, and setting groups changes. The user-programmable pushbuttons are under the control level of password protection. The user-configurable pushbuttons for the enhanced faceplate are shown below. GE Multilin L90 Line Current Differential System 5-69...
Page 208 The pulse duration of the remote set, remote reset, or local pushbutton must be at least 50 ms to operate the push- button. This allows the user-programmable pushbuttons to properly operate during power cycling events and vari- ous system disturbances that may cause transient assertion of the operating signals. NOTE 5-70 L90 Line Current Differential System GE Multilin...
Page 209 PUSHBTN 1 RESET • PUSHBTN 1 LOCAL: This setting assigns the FlexLogic operand serving to inhibit pushbutton operation from the front panel pushbuttons. This locking functionality is not applicable to pushbutton autoreset. GE Multilin L90 Line Current Differential System 5-71...
Page 210 “Normal” if the setting is “High Priority” or “Normal”. PUSHBTN 1 MESSAGE • PUSHBUTTON 1 EVENTS: If this setting is enabled, each pushbutton state change will be logged as an event into event recorder. 5-72 L90 Line Current Differential System GE Multilin...
Page 211 Off = 0 SETTING SETTING Autoreset Delay Autoreset Function = Enabled = Disabled SETTING Drop-Out Timer TIMER FLEXLOGIC OPERAND 200 ms PUSHBUTTON 1 ON 842021A3.CDR Figure 5–15: USER-PROGRAMMABLE PUSHBUTTON LOGIC (Sheet 1 of 2) GE Multilin L90 Line Current Differential System 5-73...
Page 212: Flex State Parameters
PATH: SETTINGS PRODUCT SETUP FLEX STATE PARAMETERS Range: FlexLogic operand  FLEX STATE PARAMETER  PARAMETERS Range: FlexLogic operand PARAMETER MESSAGE Range: FlexLogic operand PARAMETER MESSAGE  Range: FlexLogic operand PARAMETER 256: MESSAGE 5-74 L90 Line Current Differential System GE Multilin...
Page 213: User-Definable Displays
INVOKE AND SCROLL play, not at the first user-defined display. The pulses must last for at least 250 ms to take effect. INVOKE AND SCROLL GE Multilin L90 Line Current Differential System 5-75...
Page 214 While viewing a user display, press the ENTER key and then select the ‘Yes” option to remove the display from the user display list. Use the MENU key again to exit the user displays menu. 5-76 L90 Line Current Differential System GE Multilin...
Page 215: Installation
"Programmed" state. UNIT NOT PROGRAMMED setting allows the user to uniquely identify a relay. This name will appear on generated reports. RELAY NAME GE Multilin L90 Line Current Differential System 5-77...
Page 216: Remote Resources Configuration
Configure shared inputs and outputs as required for the application's functionality. Shared inputs and outputs are dis- tinct binary channels that provide high-speed protection quality signaling between relays through a Brick. For additional information on how to configure a relay with a process bus module, see GE publication number GEK-113658: HardFiber Process Bus System Instruction Manual.
Page 217: System Setup
1000:1 CT before summation. If a protection element is set up to act on SRC 1 currents, then a pickup level of 1 pu will operate on 1000 A primary. The same rule applies for current sums from CTs with different secondary taps (5 A and 1 A). GE Multilin L90 Line Current Differential System 5-79...
Page 218: Power System
5-80 L90 Line Current Differential System GE Multilin...
Page 219: Signal Sources
(1, 2, 3, 4) called “1” or the second bank of four channels (5, 6, 7, 8) called “5” in a particular CT/VT module. Refer to the Introduction to AC sources section at the beginning of this chapter for additional details on this concept. GE Multilin L90 Line Current Differential System 5-81...
Page 220 0.02 pu; thus by default the disturbance detector responds to a change of 0.04 pu. The metering sensitivity setting ( PROD-   ) controls the sensitivity of the disturbance detector UCT SETUP DISPLAY PROPERTIES CURRENT CUT-OFF LEVEL accordingly. 5-82 L90 Line Current Differential System GE Multilin...
Page 221 Figure 5–19: EXAMPLE USE OF SOURCES Y LV D HV SRC 1 SRC 2 SRC 3 Phase CT F1+F5 None Ground CT None None Phase VT None None Aux VT None None GE Multilin L90 Line Current Differential System 5-83...
Page 222: Power System
The voltage signals used for charging current compensation are taken from the source assigned with the setting. As such, it's critical to ensure that three-phase line voltage is CURRENT DIFF SIGNAL SOURCE 1 assigned to this source. The following diagram shows possible configurations. 5-84 L90 Line Current Differential System GE Multilin...
Page 223 The effect of charging current compensation is viewed in the METERING  actual values menu. This effect is very dependent on CT and VT accuracy. NOTE 87L DIFFERENTIAL CURRENT GE Multilin L90 Line Current Differential System 5-85...
Page 224 L90 via an input contact. In the case of GPS receiver fail, the channel compensation function can be effectively disabled by using the input contact in conjunction with the (GPS) setting. BLOCK GPS TIME REF 5-86 L90 Line Current Differential System GE Multilin...
Page 225 250 µs, or accuracy less than 250 µs, or unknown accuracy/error (that is, not locked to an international time standard). Apply 2 security counts (2 seconds) to both set and reset of this operand when change is based on accuracy. There is no corresponding quality test for IRIG-B sources here. GE Multilin L90 Line Current Differential System 5-87...
Page 226 IN-ZONE TRANSFORMER CONNECTION: This setting is used to indicate the presence and group connection of the in-zone transformer. The winding angle selection specifies the phase shift of the remote terminal side winding with 5-88 L90 Line Current Differential System GE Multilin...
Page 227 When the L90 ordered has in-zone functionality, it does not support the multi-ended fault locator. Do not set the setting to "None" at one terminal and set other terminals to a IN-ZONE TRANSFORMER CONNECTION NOTE value other than "None." 87L is blocked under these circumstances. GE Multilin L90 Line Current Differential System 5-89...
Page 228: Breakers
Range: 0.000 to 65.535 s in steps of 0.001 MANUAL CLOSE RECAL1 MESSAGE TIME: 0.000 s Range: FlexLogic operand BREAKER 1 OUT OF SV: MESSAGE Range: Disabled, Enabled BREAKER 1 EVENTS: MESSAGE Disabled 5-90 L90 Line Current Differential System GE Multilin...
Page 229 MANUAL CLOSE RECAL1 TIME: This setting specifies the interval required to maintain setting changes in effect after an operator has initiated a manual close command to operate a circuit breaker. • BREAKER 1 OUT OF SV: Selects an operand indicating that breaker 1 is out-of-service. GE Multilin L90 Line Current Differential System 5-91...
Page 230 5 SETTINGS Figure 5–23: DUAL BREAKER CONTROL SCHEME LOGIC (Sheet 1 of 2) IEC 61850 functionality is permitted when the L90 is in “Programmed” mode and not in the local control mode. NOTE 5-92 L90 Line Current Differential System GE Multilin...
Page 231 Note that IEC 61850 commands are event-driven and dwell time for these is one protection pass only. If you want to main- tain the close/open command for a certain time, do so either on the contact outputs using the "Seal-in" setting or in Flex- Logic. GE Multilin L90 Line Current Differential System 5-93...
Page 232: Disconnect Switches
• SWITCH 1 MODE: This setting selects “3-Pole” mode, where disconnect switch poles have a single common auxiliary switch, or “1-Pole” mode where each disconnect switch pole has its own auxiliary switch. 5-94 L90 Line Current Differential System GE Multilin...
Page 233 This allows for non-simultaneous operation of the poles. IEC 61850 functionality is permitted when the L90 is in “Programmed” mode and not in the local control mode. NOTE GE Multilin L90 Line Current Differential System 5-95...
Page 234 5.4 SYSTEM SETUP 5 SETTINGS Figure 5–25: DISCONNECT SWITCH SCHEME LOGIC 5-96 L90 Line Current Differential System GE Multilin...
Page 235: Flexcurves
15.0 0.48 0.88 15.5 0.50 0.90 16.0 0.52 0.91 16.5 0.54 0.92 17.0 0.56 0.93 17.5 0.58 0.94 18.0 0.60 0.95 18.5 0.62 0.96 19.0 0.64 0.97 19.5 0.66 0.98 10.0 20.0 GE Multilin L90 Line Current Differential System 5-97...
Page 236 The multiplier and adder settings only affect the curve portion of the characteristic and not the MRT and HCT set- tings. The HCT settings override the MRT settings for multiples of pickup greater than the HCT ratio. NOTE 5-98 L90 Line Current Differential System GE Multilin...
Page 237 EnerVista UR Setup software generates an error message and discards the proposed changes. NOTE e) STANDARD RECLOSER CURVES The standard recloser curves available for the L90 are displayed in the following graphs. GE Multilin L90 Line Current Differential System 5-99...
Page 238 842723A1.CDR Figure 5–29: RECLOSER CURVES GE101 TO GE106 GE142 GE138 GE120 GE113 0.05 7 8 9 10 12 CURRENT (multiple of pickup) 842725A1.CDR Figure 5–30: RECLOSER CURVES GE113, GE120, GE138 AND GE142 5-100 L90 Line Current Differential System GE Multilin...
Page 239 Figure 5–31: RECLOSER CURVES GE134, GE137, GE140, GE151 AND GE201 GE152 GE141 GE131 GE200 7 8 9 10 12 CURRENT (multiple of pickup) 842728A1.CDR Figure 5–32: RECLOSER CURVES GE131, GE141, GE152, AND GE200 GE Multilin L90 Line Current Differential System 5-101...
Page 240 Figure 5–33: RECLOSER CURVES GE133, GE161, GE162, GE163, GE164 AND GE165 GE132 GE139 GE136 GE116 0.05 GE117 GE118 0.02 0.01 7 8 9 10 12 CURRENT (multiple of pickup) 842726A1.CDR Figure 5–34: RECLOSER CURVES GE116, GE117, GE118, GE132, GE136, AND GE139 5-102 L90 Line Current Differential System GE Multilin...
Page 241 Figure 5–35: RECLOSER CURVES GE107, GE111, GE112, GE114, GE115, GE121, AND GE122 GE202 GE135 GE119 7 8 9 10 12 CURRENT (multiple of pickup) 842727A1.CDR Figure 5–36: RECLOSER CURVES GE119, GE135, AND GE202 GE Multilin L90 Line Current Differential System 5-103...
Page 242: Phasor Measurement Unit
The IEEE C37.118-2005 standard defines synchrophasors and related message for- mats to transmit synchrophasor data. Synchrophasor streaming via IEEE C37.118 has proven to work but the desire to 5-104 L90 Line Current Differential System GE Multilin...
Page 243 Precise time input to the relay from the international time standard, via either IRIG-B or PTP, is vital for correct syn- chrophasor measurement and reporting. For IRIG-B, a DC level shift IRIG-B receiver must be used for the phasor measurement unit to output proper synchrophasor values. NOTE GE Multilin L90 Line Current Differential System 5-105...
Page 244 The number of descriptions are equal to the number of bits configured in the 16 bit digital status word. All bitstrings less than or equal to 32 bits in length map into a 32 bit bitstring in an IEC 61850-90-5 dataset. NOTE 5-106 L90 Line Current Differential System GE Multilin...
Page 245 From each PMU the user selects the phasor information of interest that is mapped into the selected aggregator datset(s). For version 7.0 only FCDA data is supported. Figure 5–40: DATA SET CREATED FROM USER SELECTED INTERNAL ITEMS GE Multilin L90 Line Current Differential System 5-107...
Page 246 CFG-2 (IEEE C37.118 config. file). The CFG-2 request from the P30 can be on TCP/IP or UDP/IP, however, R-SV data streaming is only UDP multicasts (not TCP). Figure 5–42: CFG-2 BASED CONFIGURATION SOLUTION 5-108 L90 Line Current Differential System GE Multilin...
Page 247  UNIT 1  CONFIGURATION  PMU 1 See page 5-113. MESSAGE  COMMUNICATION  PMU 1 See page 5-115. MESSAGE  TRIGGERING  PMU 1 See page 5-122. MESSAGE  RECORDING GE Multilin L90 Line Current Differential System 5-109...
Page 248 Range: 1 to 65534 in steps of 1 PMU 1 IDCODE: MESSAGE Default: 1 Range: 32-character ASCII string truncated to 16 PMU 1 STN: MESSAGE characters if mapped into C37.118 Default: GE-UR-PMU GE-UR-PMU Range: Available signal sources PMU 1 SIGNAL SOURCE: MESSAGE Default: SRC 1 SRC 1...
Page 249 PMU 1 REPORTING RATE: This setting specifies the reporting rate for the network (Ethernet) port. This value applies to all PMU streams of the device that are assigned to transmit over this aggregator. For a system frequency of 60 Hz GE Multilin L90 Line Current Differential System...
Page 250 PMU1 D-CH-1 NORMAL STATE to PMU1 D-CH-16 NORMAL STATE: These settings allow for specifying a normal state for each digital channel. These states are transmitted in configuration frames to the data concentrator. 5-112 L90 Line Current Differential System GE Multilin...
Page 251 Range: available synchrophasor values PMU1 PORT PHS-1 MESSAGE PMU 1 V1 Range: 16-character ASCII string PMU1 PORT PHS-1 MESSAGE NM: GE-UR-PMU1-V1  Range: available synchrophasor values PMU1 PORT PHS-14 MESSAGE PMU 1 V1 Range: 16 alphanumeric characters PMU1 PORT PHS-14...
Page 252 PMU1 PORT D-CH-1 NORMAL STATE to PMU1 PORT D-CH-16 NORMAL STATE: These settings allow for specify- ing a normal state for each digital channel. These states are transmitted in configuration frames to the data concentra- tor. 5-114 L90 Line Current Differential System GE Multilin...
Page 253  PMU 1 USER PMU1 USER TRIGGER:  TRIGGER The user trigger allows customized triggering logic to be constructed from FlexLogic. The entire triggering logic is refreshed once every two power system cycles. GE Multilin L90 Line Current Differential System 5-115...
Page 254 PMU 1 FREQ TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned to nor- mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig- gering condition is asserted). Figure 5–44: FREQUENCY TRIGGER SCHEME LOGIC 5-116 L90 Line Current Differential System GE Multilin...
Page 255 PMU 1 VOLT TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned to nor- mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig- gering condition is asserted). GE Multilin L90 Line Current Differential System 5-117...
Page 256 PMU 1 CURR TRIGGER DPO TIME: This setting could be used to extend the trigger after the situation returned to nor- mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig- gering condition is asserted). 5-118 L90 Line Current Differential System GE Multilin...
Page 257 For single-phase power, 1 pu is a product of 1 pu voltage and 1 pu current, or the product of nominal second- ary voltage, the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a sin- gle-phase power. The comparator applies a 3% hysteresis. GE Multilin L90 Line Current Differential System 5-119...
Page 258 S > APPARENT PICKUP APPARENT POWER, SB S > APPARENT PICKUP APPARENT POWER, SC S > APPARENT PICKUP 3P APPARENT POWER, S S > 3*(APPARENT PICKUP) 847003A1.CDR Figure 5–47: POWER TRIGGER SCHEME LOGIC 5-120 L90 Line Current Differential System GE Multilin...
Page 259 PMU 1 df/dt TRIGGER DPO TIME: PMU 1 SIGNAL FLEXLOGIC OPERAND SOURCE: df/dt > RAISE PMU 1 ROCOF TRIGGER ROCOF, df/dt –df/dt > FALL 847000A1.CDR Figure 5–48: RATE OF CHANGE OF FREQUENCY TRIGGER SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-121...
Page 260 When the protocol selection is set via the software or keypad, all aggregators whose protocol is not set to None will be set to the last protocol saved (i.e., C37.118 or IEC61850-90-5) to any aggregators, as both C37.118 and IEC61850-90-5 simultaneous streaming of both R-SV values is not possible. NOTE 5-122 L90 Line Current Differential System GE Multilin...
Page 261 AGTR1 PDC CNTRL 3 Phasor data concentrator asserts control bit 3 as received via the network.  as above AGTR1 PDC CNTRL 16 Phasor data concentrator asserts control bit 16, as received via the network. GE Multilin L90 Line Current Differential System 5-123...
Page 262 Range: 0 to 4095 MSVCB 1 VID: MESSAGE Default: 0 Range: 0 to 16383 MSVCB 1 APPID: MESSAGE Default: 0 Range: 0 to 255.255.255.255 MSVCB 1 DEST. IP: MESSAGE Default: 224.0.0.0 224.0.0.0 5-124 L90 Line Current Differential System GE Multilin...
Page 263 MSVCB 1 Security: This setting selects what level of security and authentication is used, see table below, and is in the form of an enumeration as per standard. The range is 1, 2 and 3. Shaded settings in table below are not supported in firmware 7.0. ENUMERATION AUTHENTICATION ENCRYPTION NOTE GE Multilin L90 Line Current Differential System 5-125...
Page 264 NETWORK UDP PORT 1: This setting selects the first UDP port that will be used for network reporting. • NETWORK UDP PORT 2: This setting selects the second UDP port that will be used for network reporting. 5-126 L90 Line Current Differential System GE Multilin...
Page 265: Flexlogic
Traditionally, protective relay logic has been relatively limited. Any unusual applications involving interlocks, blocking, or supervisory functions had to be hard-wired using contact inputs and outputs. FlexLogic minimizes the requirement for aux- iliary components and wiring while making more complex schemes possible. GE Multilin L90 Line Current Differential System 5-127...
Page 266 The virtual input is presently in the ON state. Virtual Output Virt Op 1 On The virtual output is presently in the set state (i.e. evaluation of the equation which produces this virtual output results in a "1"). 5-128 L90 Line Current Differential System GE Multilin...
Page 267 Phase B of the trip output element has operated 87L TRIP OP C Phase C of the trip output element has operated 87L TRIP 1P OP Single-pole trip is initiated 87L TRIP 3P OP Three-pole trip is initiated GE Multilin L90 Line Current Differential System 5-129...
Page 268 Breaker restrike detected in phase B of the breaker control 1 element. BRK RESTRIKE 1 OP C Breaker restrike detected in phase C of the breaker control 1 element. BKR RESTRIKE 2... Same set of operands as shown for BKR RESTRIKE 1 5-130 L90 Line Current Differential System GE Multilin...
Page 269 FlexElement 1 has picked up FlexElements FxE 1 OP FlexElement 1 has operated FxE 1 DPO FlexElement 1 has dropped out FxE 2 to FxE 8 Same set of operands as shown for FxE 1 GE Multilin L90 Line Current Differential System 5-131...
Page 270 Neutral directional overcurrent 1 forward has operated Neutral directional NTRL DIR OC1 REV Neutral directional overcurrent 1 reverse has operated overcurrent NTRL DIR OC2 Same set of operands as shown for NTRL DIR OC1 5-132 L90 Line Current Differential System GE Multilin...
Page 271 Phase B of phase instantaneous overcurrent 1 has dropped out PHASE IOC1 DPO C Phase C of phase instantaneous overcurrent 1 has dropped out PHASE IOC2 and higher Same set of operands as shown for PHASE IOC1 GE Multilin L90 Line Current Differential System 5-133...
Page 272 PMU ONE-SHOT OP Indicates the one-shot operation and remains asserted for 30 seconds afterwards PMU ONE-SHOT PENDING Indicates the one-shot operation is pending; that is, the present time is before the scheduled one-shot time 5-134 L90 Line Current Differential System GE Multilin...
Page 273 Sub-harmonic stator ground module trouble has picked up SH STAT GND TRB DPO Sub-harmonic stator ground module trouble has dropped out SH STAT GND TRB OP Sub-harmonic stator ground module trouble has operated GE Multilin L90 Line Current Differential System 5-135...
Page 274 Asserted when the trip bus 1 element picks up. Trip bus TRIP BUS 1 OP Asserted when the trip bus 1 element operates. TRIP BUS 2... Same set of operands as shown for TRIP BUS 1 5-136 L90 Line Current Differential System GE Multilin...
Page 275 Virt Op 1 Flag is set, logic=1 Virtual outputs Virt Op 2 Flag is set, logic=1 Virt Op 3 Flag is set, logic=1   Virt Op 96 Flag is set, logic=1 GE Multilin L90 Line Current Differential System 5-137...
Page 276 Monitors ambient temperature and maximum operating temperature UNIT NOT PROGRAMMED The product setup>installation>relay settings setting is not programmed TEMPERATURE TEMP MONITOR Asserted while the ambient temperature is greater than the maximum MONITOR operating temperature (80°C) 5-138 L90 Line Current Differential System GE Multilin...
Page 277 2 to 16 any input is ‘1’ 2 to 16 all inputs are ‘1’ 2 to 16 all inputs are ‘0’ NAND 2 to 16 any input is ‘0’ only one input is ‘1’ GE Multilin L90 Line Current Differential System 5-139...
Page 278: Flexlogic Rules
When making changes to settings, all FlexLogic equations are re-compiled whenever any new setting value is entered, so all latches are automatically reset. If it is necessary to re-initialize FlexLogic during testing, for example, it is suggested to power the unit down and then back up. 5-140 L90 Line Current Differential System GE Multilin...
Page 279: Flexlogic Example
Dropout State=Pickup (200 ms) DIGITAL ELEMENT 2 Timer 1 State=Operated Time Delay on Pickup (800 ms) CONTACT INPUT H1c State=Closed VIRTUAL OUTPUT 3 827026A2.VSD Figure 5–52: LOGIC EXAMPLE WITH VIRTUAL OUTPUTS GE Multilin L90 Line Current Differential System 5-141...
Page 280 Following the procedure outlined, start with parameter 99, as follows: 99: The final output of the equation is virtual output 3, which is created by the operator "= Virt Op n". This parameter is therefore "= Virt Op 3." 5-142 L90 Line Current Differential System GE Multilin...
Page 281 87: The input just below the upper input to OR #1 is operand “Virt Op 2 On". 86: The upper input to OR #1 is operand “Virt Op 1 On". 85: The last parameter is used to set the latch, and is operand “Virt Op 4 On". GE Multilin L90 Line Current Differential System 5-143...
Page 282 In the following equation, virtual output 3 is used as an input to both latch 1 and timer 1 as arranged in the order shown below: DIG ELEM 2 OP Cont Ip H1c On AND(2) 5-144 L90 Line Current Differential System GE Multilin...
Page 283: Flexlogic Equation Editor
TIMER 1 TYPE: This setting is used to select the time measuring unit. • TIMER 1 PICKUP DELAY: Sets the time delay to pickup. If a pickup delay is not required, set this function to "0". GE Multilin L90 Line Current Differential System 5-145...
Page 284: Flexelements
The element can be programmed to respond either to a signal level or to a rate-of-change (delta) over a pre-defined period of time. The output operand is asserted when the operating signal is higher than a threshold or lower than a threshold as per user's choice. 5-146 L90 Line Current Differential System GE Multilin...
Page 285 The FLEXELEMENT 1 DIRECTION following figure explains the application of the FLEXELEMENT 1 DIRECTION FLEXELEMENT 1 PICKUP FLEXELEMENT 1 HYS- settings. TERESIS GE Multilin L90 Line Current Differential System 5-147...
Page 286 DIRECTION = Under; FLEXELEMENT INPUT MODE = Signed; FlexElement 1 OpSig FLEXELEMENT 1 PKP FLEXELEMENT DIRECTION = Under; FLEXELEMENT INPUT MODE = Absolute; FlexElement 1 OpSig 842706A2.CDR Figure 5–60: FLEXELEMENT INPUT MODE SETTING 5-148 L90 Line Current Differential System GE Multilin...
Page 287 “Delta”. FLEXELEMENT 1 COMP MODE This setting specifies the pickup delay of the element. The setting FLEXELEMENT 1 PKP DELAY FLEXELEMENT 1 RST DELAY specifies the reset delay of the element. GE Multilin L90 Line Current Differential System 5-149...
Page 288: Non-Volatile Latches
LATCH N LATCH N LATCH N TYPE RESET Reset Dominant Previous Previous State State Dominant Previous Previous State State Figure 5–61: NON-VOLATILE LATCH OPERATION TABLE (N = 1 to 16) AND LOGIC 5-150 L90 Line Current Differential System GE Multilin...
Page 289: Grouped Elements
Each of the six setting group menus is identical. Setting group 1 (the default active group) automatically becomes active if no other group is active (see the Control elements section for additional details). GE Multilin L90 Line Current Differential System...
Page 290: Line Differential Element
FUNCTION: Disabled Range: 0.05 to 1.00 pu in steps of 0.01 CURRENT DIFF GND MESSAGE PICKUP: 0.10 pu Range: 1 to 50% in steps of 1 CURRENT DIFF GND MESSAGE RESTRAINT: 25% 5-152 L90 Line Current Differential System GE Multilin...
Page 291 If set to “Per phase”, the L90 performs inrush inhibit individually in each phase. – If set to “2-out-of-3”, the L90 checks second harmonic level in all three phases individually. If any two phases establish an inhibiting condition, then the remaining phase is restrained automatically. GE Multilin L90 Line Current Differential System 5-153...
Page 292 For the current differential element to function properly, it is imperative that all L90 devices on the protected line have exactly identical firmware revisions. For example, revision 5.62 in only compatible with 5.62, not 5.61 or 5.63. NOTE 5-154 L90 Line Current Differential System GE Multilin...
Page 293 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–62: CURRENT DIFFERENTIAL SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-155...
Page 294 STUB BUS TRIGGER associated instantaneous overcurrent pickup operand. The source assigned for the current of this element must cover the stub between CTs of the associated breakers and disconnect switch. 5-156 L90 Line Current Differential System GE Multilin...
Page 295 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–63: STUB BUS SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-157...
Page 296: Line Pickup
2 or excessive phase current within eight power cycles after the autorecloser issues a close command results in the FlexLogic operand. For security, the overcurrent trip is supervised by LINE PICKUP RCL TRIP 5-158 L90 Line Current Differential System GE Multilin...
Page 297 1 extension functionality if external autoreclosure is employed. Another zone 1 extension approach is to permanently apply an overreaching zone, and reduce the reach when reclosing. This philosophy can be programmed via the autore- close scheme. Figure 5–64: LINE PICKUP SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-159...
Page 298: Distance
(logic 1), the distance functions become memory-polarized regardless of the positive-sequence voltage magnitude at this time. When the selected operand is de-asserted (logic 0), the distance functions follow other conditions of the memory volt- age logic. 5-160 L90 Line Current Differential System GE Multilin...
Page 299 The distance zones of the L90 are identical to that of the UR-series D60 Line Distance Relay. For additional infor- mation on the L90 distance functions, please refer to Chapter 8 of the D60 manual, available on the GE EnerVista CD or free of charge on the GE Multilin web page.
Page 300 PHS DIST Z1 DIR: All phase distance zones are reversible. The forward direction is defined by the PHS DIST Z1 RCA setting, whereas the reverse direction is shifted 180° from that angle. The non-directional zone spans between the for- 5-162 L90 Line Current Differential System GE Multilin...
Page 301 COMP LIMIT DIR COMP LIMIT DIR COMP LIMIT DIR RCA 837720A1.CDR Figure 5–66: DIRECTIONAL MHO DISTANCE CHARACTERISTIC COMP LIMIT REV REACH 837802A1.CDR Figure 5–67: NON-DIRECTIONAL MHO DISTANCE CHARACTERISTIC GE Multilin L90 Line Current Differential System 5-163...
Page 302 Figure 5–68: DIRECTIONAL QUADRILATERAL PHASE DISTANCE CHARACTERISTIC COMP LIMIT COMP LIMIT LFT BLD RCA RGT BLD RCA -LFT BLD RGT BLD REV REACH COMP LIMIT COMP LIMIT 837803A1.CDR Figure 5–69: NON-DIRECTIONAL QUADRILATERAL PHASE DISTANCE CHARACTERISTIC 5-164 L90 Line Current Differential System GE Multilin...
Page 303 DIR COMP LIMIT = 60 RGT BLD RCA = 90 RGT BLD RCA = 80 LFT BLD RCA = 90 LFT BLD RCA = 80 837723A1.CDR Figure 5–71: QUADRILATERAL DISTANCE CHARACTERISTIC SAMPLE SHAPES GE Multilin L90 Line Current Differential System 5-165...
Page 304 The setting is an angle of reach impedance as shown in the distance characteristic figures shown earlier. This setting is independent from , the characteristic angle of an PHS DIST Z1 DIR RCA extra directional supervising function. 5-166 L90 Line Current Differential System GE Multilin...
Page 305 PHS DIST Z1 BLK: This setting enables the user to select a FlexLogic operand to block a given distance element. VT fuse fail detection is one of the applications for this setting. GE Multilin L90 Line Current Differential System 5-167...
Page 306 2 operation when the fault evolves from one type to another or migrates from the initial zone to zone 2. Desired zones in the trip output function should be assigned to accomplish NOTE this functionality. 5-168 L90 Line Current Differential System GE Multilin...
Page 307 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–75: PHASE DISTANCE ZONES 3 AND HIGHER OP SCHEME Figure 5–76: PHASE DISTANCE SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-169...
Page 308 Range: 60 to 90° in steps of 1 GND DIST Z1 QUAD MESSAGE LFT BLD RCA: 85° Range: 0.050 to 30.000 pu in steps of 0.001 GND DIST Z1 MESSAGE SUPV: 0.200 pu 5-170 L90 Line Current Differential System GE Multilin...
Page 309 The directional and non-directional quadrilateral ground distance characteristics are shown below. The directional and non-directional mho ground distance characteristics are the same as those shown for the phase distance element in the previous sub-section. GE Multilin L90 Line Current Differential System 5-171...
Page 310 DISTANCE SOURCE zero-sequence impedance between the lines and the positive-sequence impedance of the protected line. It is impera- tive to set this setting to zero if the compensation is not to be performed. 5-172 L90 Line Current Differential System GE Multilin...
Page 311 This setting applies only to the GND DIST Z1 QUAD RGT BLD RCA quadrilateral characteristic and should be set with consideration to the maximum load current and required resistive coverage. GE Multilin L90 Line Current Differential System 5-173...
Page 312 GND DIST Z1 SUPN IN OPEN POLE OP ** ** D60, L60, and L90 only. Other UR-series models apply regular current seal-in for zone 1. 837018A7.CDR Figure 5–79: GROUND DISTANCE ZONE 1 OP SCHEME 5-174 L90 Line Current Differential System GE Multilin...
Page 313 3 or 4 to zone 2. The desired zones should be assigned in the trip output element to accomplish this NOTE functionality. Figure 5–81: GROUND DISTANCE ZONES 3 AND HIGHER OP SCHEME GE Multilin L90 Line Current Differential System 5-175...
Page 314 5.6 GROUPED ELEMENTS 5 SETTINGS Figure 5–82: GROUND DISTANCE ZONE 1 SCHEME LOGIC 5-176 L90 Line Current Differential System GE Multilin...
Page 315 The supervision is biased toward operation in order to avoid compromising the sensitivity of ground distance elements at low signal levels. Otherwise, the reverse fault condition that generates concern will have high polarizing levels so that a cor- rect reverse fault decision can be reliably made. GE Multilin L90 Line Current Differential System 5-177...
Page 316: Power Swing Detect
LIMIT ANGLE: 120° Range: 40 to 140° in steps of 1 POWER SWING MIDDLE MESSAGE LIMIT ANGLE: 90° Range: 40 to 140° in steps of 1 POWER SWING INNER MESSAGE LIMIT ANGLE: 60° 5-178 L90 Line Current Differential System GE Multilin...
Page 317 Different protection elements respond differently to power swings. If tripping is required for faults during power swing condi- tions, some elements may be blocked permanently (using the operand), and others may be blocked POWER SWING BLOCK and dynamically unblocked upon fault detection (using the operand). POWER SWING UN/BLOCK GE Multilin L90 Line Current Differential System 5-179...
Page 318 The element can be set to use either lens (mho) or rectangular (quadrilateral) characteristics as illustrated below. When set to “Mho”, the element applies the right and left blinders as well. If the blinders are not required, their settings should be set high enough to effectively disable the blinders. 5-180 L90 Line Current Differential System GE Multilin...
Page 319 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–85: POWER SWING DETECT MHO OPERATING CHARACTERISTICS Figure 5–86: EFFECTS OF BLINDERS ON THE MHO CHARACTERISTICS GE Multilin L90 Line Current Differential System 5-181...
Page 320 POWER SWING SHAPE: This setting selects the shapes (either “Mho” or “Quad”) of the outer, middle and, inner char- acteristics of the power swing detect element. The operating principle is not affected. The “Mho” characteristics use the left and right blinders. 5-182 L90 Line Current Differential System GE Multilin...
Page 321 (the actual trip may be delayed as per the setting). Therefore, this angle must be selected in consider- TRIP MODE ation to the power swing angle beyond which the system becomes unstable and cannot recover. GE Multilin L90 Line Current Differential System 5-183...
Page 322 The blocking signal resets the output operand but does not stop the out-of-step tripping sequence. POWER SWING TRIP 5-184 L90 Line Current Differential System GE Multilin...
Page 323 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–88: POWER SWING DETECT SCHEME LOGIC (1 of 3) Figure 5–89: POWER SWING DETECT SCHEME LOGIC (2 of 3) GE Multilin L90 Line Current Differential System 5-185...
Page 324 L1 AND L4 LATCHES ARE SET DOMINANT L2, L3 AND L5 LATCHES ARE RESET DOMINANT Off=0 FLEXLOGIC OPERAND POWER SWING OUTGOING 827841A4.CDR Figure 5–90: POWER SWING DETECT SCHEME LOGIC (3 of 3) 5-186 L90 Line Current Differential System GE Multilin...
Page 325: Load Encroachment
The element operates if the positive-sequence voltage is above a settable level and asserts its output signal that can be used to block selected protection elements such as distance or phase overcurrent. The following figure shows an effect of the load encroachment characteristics used to block the quadrilateral distance element. GE Multilin L90 Line Current Differential System 5-187...
Page 326 LOAD ENCROACHMENT ANGLE: This setting specifies the size of the blocking region as shown on the Load encroachment characteristic diagram and applies to the positive-sequence impedance. Figure 5–93: LOAD ENCROACHMENT SCHEME LOGIC 5-188 L90 Line Current Differential System GE Multilin...
Page 327: Phase Current
 DIRECTIONAL 2 b) INVERSE TIME OVERCURRENT CHARACTERISTICS The inverse time overcurrent curves used by the time overcurrent elements are the IEEE, IEC, GE Type IAC, and I t stan- dard curve shapes. This allows for simplified coordination with downstream devices.
Page 328 4.827 38.634 22.819 14.593 11.675 10.130 9.153 8.470 7.960 7.562 7.241 51.512 30.426 19.458 15.567 13.507 12.204 11.294 10.614 10.083 9.654 10.0 64.390 38.032 24.322 19.458 16.883 15.255 14.117 13.267 12.604 12.068 5-190 L90 Line Current Differential System GE Multilin...
Page 329 1.835 1.067 0.668 0.526 0.451 0.404 0.371 0.346 0.327 0.311 0.80 2.446 1.423 0.890 0.702 0.602 0.538 0.494 0.461 0.435 0.415 1.00 3.058 1.778 1.113 0.877 0.752 0.673 0.618 0.576 0.544 0.518 GE Multilin L90 Line Current Differential System 5-191...
Page 330 = characteristic constant, and T = reset time in seconds (assuming energy capacity is 100% RESET is “Timed”) RESET Table 5–21: GE TYPE IAC INVERSE TIME CURVE CONSTANTS IAC CURVE SHAPE IAC Extreme Inverse 0.0040 0.6379 0.6200 1.7872 0.2461...
Page 331 = Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed) RESET RECLOSER CURVES: The L90 uses the FlexCurve feature to facilitate programming of 41 recloser curves. Please refer to the FlexCurve section in this chapter for additional details. GE Multilin L90 Line Current Differential System 5-193...
Page 332 ‘Mvr’ times the setting. If the voltage restraint feature PHASE TOC1 PICKUP is disabled, the pickup level always remains at the setting value. 5-194 L90 Line Current Differential System GE Multilin...
Page 333 5 SETTINGS 5.6 GROUPED ELEMENTS Phase-Phase Voltage ÷ VT Nominal Phase-phase Voltage 818784A4.CDR Figure 5–94: PHASE TIME OVERCURRENT VOLTAGE RESTRAINT CHARACTERISTIC Figure 5–95: PHASE TIME OVERCURRENT 1 SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-195...
Page 334 The input current is the fundamental phasor magnitude. For timing curves, see the publication Instan- taneous Overcurrent Element Response to Saturated Waveforms in UR-Series Relays (GET-8400A). Figure 5–96: PHASE INSTANTANEOUS OVERCURRENT 1 SCHEME LOGIC 5-196 L90 Line Current Differential System GE Multilin...
Page 335 CTs and the line-line voltage from the VTs, based on the 90° or quadrature connection. If there is a requirement to supervise overcurrent elements for flows in opposite directions, such as can happen through a bus-tie breaker, two phase directional elements should be programmed with opposite element characteristic angle (ECA) settings. GE Multilin L90 Line Current Differential System 5-197...
Page 336 10 ms must be added to all the instantaneous protection elements under the supervi- sion of the phase directional element. If current reversal is of a concern, a longer delay – in the order of 20 ms – may be needed. 5-198 L90 Line Current Differential System GE Multilin...
Page 337: Neutral Current
 NEUTRAL IOC1 See page 5-201. MESSAGE   NEUTRAL IOC2 See page 5-201. MESSAGE   NEUTRAL See page 5-202. MESSAGE  DIRECTIONAL OC1  NEUTRAL See page 5-202. MESSAGE  DIRECTIONAL OC2 GE Multilin L90 Line Current Differential System 5-199...
Page 338 For example, if the element reset characteristic is set to “Instan- taneous” and the element is blocked, the time accumulator will be cleared immediately. Figure 5–99: NEUTRAL TIME OVERCURRENT 1 SCHEME LOGIC 5-200 L90 Line Current Differential System GE Multilin...
Page 339 The operating quantity depends on how test currents are injected into the relay (single-phase injection:   0.9375 I ; three-phase pure zero-sequence injection: injected injected Figure 5–100: NEUTRAL IOC1 SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-201...
Page 340     (EQ 5.20) – The positive-sequence restraint allows for more sensitive settings by counterbalancing spurious zero-sequence currents resulting from: • System unbalances under heavy load conditions. 5-202 L90 Line Current Differential System GE Multilin...
Page 341 1.5 of a power system cycle. The element is designed to emulate an electromechanical directional device. Larger operating and polarizing signals results in faster directional discrimination bringing more security to the element operation. GE Multilin L90 Line Current Differential System 5-203...
Page 342 The low-side system impedance should be assumed minimal when checking for this condition. A similar sit- uation arises for a wye/delta/wye transformer, where current in one transformer winding neutral may reverse when faults on both sides of the transformer are considered. 5-204 L90 Line Current Differential System GE Multilin...
Page 343 NEUTRAL DIR OC1 REV PICKUP: This setting defines the pickup level for the overcurrent unit of the element in the reverse direction. When selecting this setting it must be kept in mind that the design uses a positive-sequence restraint technique for the “Calculated 3I0” mode of operation. GE Multilin L90 Line Current Differential System 5-205...
Page 344 5.6 GROUPED ELEMENTS 5 SETTINGS Figure 5–102: NEUTRAL DIRECTIONAL OVERCURRENT LOGIC 5-206 L90 Line Current Differential System GE Multilin...
Page 345: Wattmetric Ground Fault
VT connected to the auxiliary channel bank of the relay). When the latter selection is made, the auxiliary channel must be identified by the user as a neutral voltage under the VT bank settings. This element operates when the auxil- iary voltage is configured as neutral. GE Multilin L90 Line Current Differential System 5-207...
Page 346   FlexCurve --------- - (EQ 5.23)   Again, the FlexCurve timer starts after the definite time timer expires. 5-208 L90 Line Current Differential System GE Multilin...
Page 347 1 FUNCTION: WATTMETRIC GND FLT 1 Enabled = 1 OC PKP DEL: WATT GND FLT 1 BLK: FLEXLOGIC OPERAND Off = 0 WATTMETRIC 1 PKP 837033A4.CDR Figure 5–104: WATTMETRIC ZERO-SEQUENCE DIRECTIONAL LOGIC GE Multilin L90 Line Current Differential System 5-209...
Page 348: Ground Current
These elements measure the current that is connected to the ground channel of a CT/VT module. The conversion range of a standard channel is from 0.02 to 46 times the CT rating. NOTE Figure 5–105: GROUND TOC1 SCHEME LOGIC 5-210 L90 Line Current Differential System GE Multilin...
Page 349 These elements measure the current that is connected to the ground channel of a CT/VT module. The conversion range of a standard channel is from 0.02 to 46 times the CT rating. NOTE Figure 5–106: GROUND IOC1 SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-211...
Page 350 CT installed in the grounding path, or the ground current obtained by external summation of the neutral-side stator CTs. The Typical Applications of RGF Protec- tion diagram explains the basic application and wiring rules. 5-212 L90 Line Current Differential System GE Multilin...
Page 351 The zero-sequence component of the restraining signal (IR0) is meant to provide maximum restraint during external ground faults, and therefore is calculated as a vectorial difference of the ground and neutral currents:   IG IN (EQ 5.26) – – GE Multilin L90 Line Current Differential System 5-213...
Page 352 Having the differential and restraining signals developed, the element applies a single slope differential characteristic with a minimum pickup as shown in the logic diagram below. Figure 5–109: RESTRICTED GROUND FAULT SCHEME LOGIC 5-214 L90 Line Current Differential System GE Multilin...
Page 353 Igd = abs(3  3.3 + 0.0) = 10 pu, IR0 = abs(3  3.3 – (0.0)) = 10 pu, IR2 = 3  3.3 = 10 pu, IR1 = 3  (3.33 – 3.33) = 0 pu, and Igr = 10 pu The differential current is 100% of the restraining current. GE Multilin L90 Line Current Differential System 5-215...
Page 354: Negative Sequence Current
For example, if the element reset characteristic is set to “Instanta- neous” and the element is blocked, the time accumulator is cleared immediately. Figure 5–110: NEGATIVE SEQUENCE TOC1 SCHEME LOGIC 5-216 L90 Line Current Differential System GE Multilin...
Page 355 The operating quantity depends on the way the test currents are injected into the relay (single-phase injection:  0.2917 I ; three-phase injection, opposite rotation: injected injected Figure 5–111: NEGATIVE SEQUENCE IOC1 SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-217...
Page 356 The positive-sequence restraint allows for more sensitive settings by counterbalancing spurious negative-sequence and zero-sequence currents resulting from: • System unbalances under heavy load conditions. • Transformation errors of current transformers (CTs). • Fault inception and switch-off transients. 5-218 L90 Line Current Differential System GE Multilin...
Page 357 = 80° (forward limit angle = ± the angular limit with the ECA for operation) REV LA = 80° (reverse limit angle = ± the angular limit with the ECA for operation) GE Multilin L90 Line Current Differential System 5-219...
Page 358 The element characteristic angle in the reverse direction is the angle set for the forward direction shifted by 180°. • NEG SEQ DIR OC1 FWD LIMIT ANGLE: This setting defines a symmetrical (in both directions from the ECA) limit angle for the forward direction. 5-220 L90 Line Current Differential System GE Multilin...
Page 359 When NEG SEQ DIR OC1 TYPE selecting this setting it must be kept in mind that the design uses a positive-sequence restraint technique. Figure 5–113: NEGATIVE SEQUENCE DIRECTIONAL OC1 SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-221...
Page 360: Breaker Failure
Range: 0.001 to 30.000 pu in steps of 0.001 BF1 N AMP HISET MESSAGE PICKUP: 1.050 pu Range: 0.001 to 30.000 pu in steps of 0.001 BF1 PH AMP LOSET MESSAGE PICKUP: 1.050 pu 5-222 L90 Line Current Differential System GE Multilin...
Page 361 Thus, if this choice is made, fault levels must always be above the supervision pickup levels for dependable operation of GE Multilin L90 Line Current Differential System...
Page 362 BREAKER FAILURE TIMER No. 2 (±1/8 cycle) INITIATE (1/8 cycle) BREAKER FAILURE CURRENT DETECTOR PICKUP (1/8 cycle) BREAKER FAILURE OUTPUT RELAY PICKUP (1/4 cycle) FAULT cycles OCCURS 827083A6.CDR Figure 5–114: BREAKER FAILURE MAIN PATH SEQUENCE 5-224 L90 Line Current Differential System GE Multilin...
Page 363 BF1 TIMER 3 PICKUP DELAY: Timer 3 is set to the same interval as timer 2, plus an increased safety margin. Because this path is intended to operate only for low level faults, the delay can be in the order of 300 to 500 ms. GE Multilin L90 Line Current Differential System...
Page 364 Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command should be given via output operand BKR FAIL 1 TRIP OP 5-226 L90 Line Current Differential System GE Multilin...
Page 365 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–116: SINGLE-POLE BREAKER FAILURE, INITIATE GE Multilin L90 Line Current Differential System 5-227...
Page 366 5.6 GROUPED ELEMENTS 5 SETTINGS Figure 5–117: SINGLE-POLE BREAKER FAILURE, TIMERS 5-228 L90 Line Current Differential System GE Multilin...
Page 367 5 SETTINGS 5.6 GROUPED ELEMENTS Figure 5–118: THREE-POLE BREAKER FAILURE, INITIATE GE Multilin L90 Line Current Differential System 5-229...
Page 368 5.6 GROUPED ELEMENTS 5 SETTINGS Figure 5–119: THREE-POLE BREAKER FAILURE, TIMERS 5-230 L90 Line Current Differential System GE Multilin...
Page 369: Voltage Elements
------------------ –   pickup where: T = operating time D = undervoltage delay setting (D = 0.00 operates instantaneously) V = secondary voltage applied to the relay = pickup level pickup GE Multilin L90 Line Current Differential System 5-231...
Page 370 The minimum voltage setting selects the operating voltage below which the element is blocked (a setting of “0” will allow a dead source to be considered a fault condition). 5-232 L90 Line Current Differential System GE Multilin...
Page 371 The input voltage is the phase-to-phase voltage, either measured directly from delta-connected VTs or as cal- culated from phase-to-ground (wye) connected VTs. The specific voltages to be used for each phase are shown below. GE Multilin L90 Line Current Differential System...
Page 372 FlexCurves A, B, or C) or be used as a definite time element. The setting applies only if NEUTRAL OV1 PICKUP DELAY setting is “Definite time”. The source assigned to this element must be configured for a phase VT. NEUTRAL OV1 CURVE 5-234 L90 Line Current Differential System GE Multilin...
Page 373 The operating characteristics and equations for both definite and inverse time delay are as for the phase undervoltage element. GE Multilin L90 Line Current Differential System...
Page 374 (pu) base used when setting the SETUP AC INPUTS VOLTAGE BANK X5 AUXILIARY VT X5 SECONDARY pickup level. A typical application for this element is monitoring the zero-sequence voltage (3V_0) supplied from an open-corner-delta VT connection. 5-236 L90 Line Current Differential System GE Multilin...
Page 375: Sensitive Directional Power
The element has an adjustable characteristic angle and minimum operating power as shown in the Directional power char- acteristic diagram. The element responds to the following condition:    SMIN (EQ 5.32) GE Multilin L90 Line Current Differential System 5-237...
Page 376 SENSITIVE DIRECTIONAL POWER 1(2) value. The element has two independent (as to the pickup and delay settings) stages for alarm and trip, respectively. OPERATE RCA+ CALIBRATION SMIN RESTRAIN Figure 5–126: DIRECTIONAL POWER CHARACTERISTIC 5-238 L90 Line Current Differential System GE Multilin...
Page 377 DIR POWER 1 CALIBRATION: This setting allows the relay characteristic angle to change in steps of 0.05°. This may be useful when a small difference in VT and CT angular errors is to be compensated to permit more sensitive settings. GE Multilin L90 Line Current Differential System...
Page 378 DIR POWER 1 OP Three-phase reactive power (Q) DIR POWER 1 STG2 DPO DIR POWER 1 STG2 OP SETTING DIR POWER 1 STG2 DELAY: 100 ms 842003A3.CDR Figure 5–128: SENSITIVE DIRECTIONAL POWER SCHEME LOGIC 5-240 L90 Line Current Differential System GE Multilin...
Page 379: Supervising Elements
DD CONTROL LOGIC: This setting is used to prevent operation of I_0 and I_2 logic of disturbance detector during conditions such as single breaker pole being open which leads to unbalanced load current in single-pole tripping schemes. Breaker auxiliary contact can be used for such scheme. GE Multilin L90 Line Current Differential System 5-241...
Page 380 DD EVENTS bance on the system which may result in filling the events buffer and possible loss of valuable data. NOTE Figure 5–129: DISTURBANCE DETECTOR SCHEME LOGIC 5-242 L90 Line Current Differential System GE Multilin...
Page 381 Autoreclosure disabled can be utilized, or the autoreclosure counter if, for example, the second trip is required to be a three-pole signal. Likewise, any operand representing a change in the power system configuration, can be applied. GE Multilin L90 Line Current Differential System 5-243...
Page 382 87L TRIP SEAL-IN: This setting is used to enable/disable seal-in of the trip signal by measurement of the current flow- ing. • 87L TRIP SEAL-IN PICKUP: This setting is used to select a pickup setting of the current seal-in function. Figure 5–130: 87L TRIP SCHEME LOGIC 5-244 L90 Line Current Differential System GE Multilin...
Page 383: Control Elements
If more than one operate-type operand is required, it may be assigned directly from the trip bus menu. GE Multilin L90 Line Current Differential System...
Page 384 TRIP BUS 1 PKP = Enabled TRIP BUS 1 BLOCK = Off SETTINGS TRIP BUS 1 LATCHING = Enabled TRIP BUS 1 RESET = Off FLEXLOGIC OPERAND RESET OP 842023A1.CDR Figure 5–132: TRIP BUS LOGIC 5-246 L90 Line Current Differential System GE Multilin...
Page 385: Setting Groups
The setting groups menu controls the activation and deactivation of up to six possible groups of settings in the GROUPED settings menu. The faceplate Settings In Use LEDs indicate which active group (with a non-flashing energized ELEMENTS LED) is in service. GE Multilin L90 Line Current Differential System 5-247...
Page 386 OR (2) AND (3) = VIRT OP 1 (VO1) PHASE TOC1 PKP PHASE TOC2 PKP AND (3) = VIRT OP 1 (VO1) 842789A1.CDR Figure 5–133: EXAMPLE FLEXLOGIC CONTROL OF A SETTINGS GROUP 5-248 L90 Line Current Differential System GE Multilin...
Page 387: Selector Switch
1 to the . If the control word is outside the range, an alarm is established SELECTOR FULL RANGE by setting the FlexLogic operand for 3 seconds. SELECTOR ALARM GE Multilin L90 Line Current Differential System 5-249...
Page 388 SELECTOR 1 3BIT ACK: This setting specifies an acknowledging input for the three-bit control input. The pre- selected position is applied on the rising edge of the assigned FlexLogic operand. This setting is active only under the 5-250 L90 Line Current Differential System GE Multilin...
Page 389 The selector position pre-selected via the stepping up control input has not been confirmed before the time out. SELECTOR 1 BIT ALARM The selector position pre-selected via the three-bit control input has not been confirmed before the time out. GE Multilin L90 Line Current Differential System 5-251...
Page 390 3BIT A2 POS 1 POS 2 POS 3 POS 4 POS 5 POS 6 POS 7 BIT 0 BIT 1 BIT 2 STP ALARM BIT ALARM ALARM 842737A1.CDR Figure 5–134: TIME-OUT MODE 5-252 L90 Line Current Differential System GE Multilin...
Page 391 Make the following changes to selector switch element in the    SETTINGS CONTROL ELEMENTS SELECTOR SWITCH menu to assign control to user programmable pushbutton 1 and contact inputs 1 through 3: SELECTOR SWITCH 1 GE Multilin L90 Line Current Differential System 5-253...
Page 392 SELECTOR 1 BIT ALARM 3-bit position out SELECTOR 1 ALARM SELECTOR 1 PWR ALARM SELECTOR 1 BIT 0 SELECTOR 1 BIT 1 SELECTOR 1 BIT 2 842012A2.CDR Figure 5–136: SELECTOR SWITCH LOGIC 5-254 L90 Line Current Differential System GE Multilin...
Page 393: Trip Output
START TMR Z2GR Inp1: MESSAGE Range: FlexLogic operand START TMR Z2GR Inp2: MESSAGE Range: FlexLogic operand BKR ΦA OPEN: MESSAGE Range: FlexLogic operand BKR ΦB OPEN: MESSAGE Range: FlexLogic operand BKR ΦC OPEN: MESSAGE GE Multilin L90 Line Current Differential System 5-255...
Page 394 OPEN POLE OP ΦC rent phase A will be blocked by operand. This blocking condition is pre-wired for distance pro- OPEN POLE OP ΦA tection. The following settings are available for the trip output element. 5-256 L90 Line Current Differential System GE Multilin...
Page 395 TRIP FORCE 3-POLE: Selects an operand that will force an input selected for single pole operation to produce a three pole operation. The FlexLogic operand is the recommended value for this setting. Power system config- AR DISABLED urations or conditions which require such operations may be considered as well. GE Multilin L90 Line Current Differential System 5-257...
Page 396 Use it only in single-pole tripping applications, when evolving faults are of importance, and slightly delayed operation on evolving faults could be traded for enhanced accuracy of single-pole tripping. 5-258 L90 Line Current Differential System GE Multilin...
Page 397 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–137: TRIP OUTPUT SCHEME LOGIC (Sheet 1 of 2) GE Multilin L90 Line Current Differential System 5-259...
Page 398 5.7 CONTROL ELEMENTS 5 SETTINGS Figure 5–138: TRIP OUTPUT SCHEME LOGIC (Sheet 2 of 2) 5-260 L90 Line Current Differential System GE Multilin...
Page 399: Underfrequency
For example, UNDERFREQ 1 PICKUP if the system frequency is 60 Hz and the load shedding is required at 59.5 Hz, the setting will be 59.50 Hz. Figure 5–139: UNDERFREQUENCY SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-261...
Page 400: Overfrequency
The setting selects OVERFREQ 1 SOURCE OVERFREQ 1 PICKUP the level at which the overfrequency element is to pickup. Figure 5–140: OVERFREQUENCY SCHEME LOGIC 5-262 L90 Line Current Differential System GE Multilin...
Page 401: Frequency Rate Of Change
FREQ RATE 1 OC SUPV PICKUP: This setting defines minimum current level required for operation of the element. The supervising function responds to the positive-sequence current. Typical application includes load shedding. Set the pickup threshold to zero if no overcurrent supervision is required. GE Multilin L90 Line Current Differential System 5-263...
Page 402 FREQ RATE 1 PKP FREQ RATE 1 MIN FREQUENCY: FREQ RATE 1 MAX FREQUENCY: F > MIN & F < MAX Calculate df/dt 832023A2.CDR Figure 5–141: FREQUENCY RATE OF CHANGE SCHEME LOGIC 5-264 L90 Line Current Differential System GE Multilin...
Page 403: Synchrocheck
F. This time can be calculated by: ------------------------------- - (EQ 5.33) 360 ----------------- -  F 2   where: = phase angle difference in degrees; F = frequency difference in Hz. GE Multilin L90 Line Current Differential System 5-265...
Page 404 COMBINATION SOURCE Y SOURCE Z Phase VTs and Phase VTs and Phase Phase Auxiliary VT Auxiliary VT Phase VTs and Phase VT Phase Phase Auxiliary VT Phase VT Phase VT Phase Phase 5-266 L90 Line Current Differential System GE Multilin...
Page 405 The relay will use the phase channel of a three-phase set of voltages if pro- grammed as part of that source. The relay will use the auxiliary voltage channel only if that channel is programmed as part of the Source and a three-phase set is not. GE Multilin L90 Line Current Differential System 5-267...
Page 406 5.7 CONTROL ELEMENTS 5 SETTINGS Figure 5–142: SYNCHROCHECK SCHEME LOGIC 5-268 L90 Line Current Differential System GE Multilin...
Page 407: Digital Elements
Some versions of the digital input modules include an active voltage monitor circuit connected across form-A contacts. The voltage monitor circuit limits the trickle current through the output circuit (see technical specifications for form-A). GE Multilin L90 Line Current Differential System...
Page 408 The settings to use digital element 1 to monitor the breaker trip circuit are indicated below (EnerVista UR Setup example shown): The PICKUP DELAY setting should be greater than the operating time of the breaker to avoid nuisance alarms. NOTE 5-270 L90 Line Current Differential System GE Multilin...
Page 409 “Off”. In this case, the settings are as follows (EnerVista UR Setup example shown). Figure 5–145: TRIP CIRCUIT EXAMPLE 2 The wiring connection for two examples above is applicable to both form-A contacts with voltage monitoring and solid-state contact with voltage monitoring. NOTE GE Multilin L90 Line Current Differential System 5-271...
Page 410: Digital Counters
–2,147,483,648 counts, the counter will rollover to +2,147,483,647. • COUNTER 1 BLOCK: Selects the FlexLogic operand for blocking the counting operation. All counter operands are blocked. 5-272 L90 Line Current Differential System GE Multilin...
Page 411 COUNTER 1 FROZEN: Off = 0 STORE DATE & TIME Date & Time SETTING COUNT1 FREEZE/RESET: Off = 0 827065A1.VSD SETTING COUNT1 FREEZE/COUNT: Off = 0 Figure 5–146: DIGITAL COUNTER SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-273...
Page 412: Monitoring Elements
See page 5–289. MESSAGE   BROKEN CONDUCTOR 1 See page 5–292. MESSAGE   BROKEN CONDUCTOR 2 See page 5–292. MESSAGE   THERMAL OVERLOAD See page 5–294. MESSAGE  PROTECTION 5-274 L90 Line Current Differential System GE Multilin...
Page 413 • BKR 1 ARC AMP LIMIT: Selects the threshold value above which the output operand is set. GE Multilin L90 Line Current Differential System 5-275...
Page 414 Contacts Initiate Extinguished Part Total Area = Breaker Arcing Current (kA·cycle) Programmable 100 ms Start Delay Start Stop Integration Integration Figure 5–147: ARCING CURRENT MEASUREMENT Figure 5–148: BREAKER ARCING CURRENT SCHEME LOGIC 5-276 L90 Line Current Differential System GE Multilin...
Page 415 Breaker open, Voltage difference drop, and Measured flashover current through the breaker. Furthermore, the scheme is applicable for cases where either one or two sets of three-phase voltages are available across the breaker. GE Multilin L90 Line Current Differential System 5-277...
Page 416 This application do not require detection of breaker status via a 52a contact, as it uses a voltage difference larger than the setting. However, monitoring the breaker contact will ensure scheme stability. BRK 1 FLSHOVR DIFF V PKP 5-278 L90 Line Current Differential System GE Multilin...
Page 417 BRK 1 FLSHOVR SPV A to BRK 1 FLSHOVR SPV C: These settings specify FlexLogic operands (per breaker pole) that supervise the operation of the element per phase. Supervision can be provided by operation of other protection GE Multilin L90 Line Current Differential System...
Page 418 BRK 1 FLSHOVR DIFF V SRC: PKP: SRC 1 SRC 2 SRC 6 , … , , none ΔVA > PKP Δ VA = VA - Va 842018A2.CDR Figure 5–149: BREAKER FLASHOVER SCHEME LOGIC 5-280 L90 Line Current Differential System GE Multilin...
Page 419 A restrike event (FlexLogic operand) is declared if all of the following hold: • The current is initially interrupted. GE Multilin L90 Line Current Differential System 5-281...
Page 420 “1” when breaker is opened, either manually or from protection logic. • BRK RSTR 1 CLS CMD: This setting assigns a FlexLogic operand indicating a breaker close command. It must be logic “1” when breaker is closed. 5-282 L90 Line Current Differential System GE Multilin...
Page 421 Range: FlexLogic operand. To supervise voltage logic, CONT MONITOR V-SUPV: MESSAGE use VT FUSE FAIL OP Range: Self-reset, Latched, Disabled CONT MONITOR MESSAGE TARGET: Self-reset Range: Disabled, Enabled CONT MONITOR MESSAGE EVENTS: Disabled GE Multilin L90 Line Current Differential System 5-283...
Page 422 The continuous monitor can detect this state and issue an alarm and/or block the trip- ping of the relay. Figure 5–153: CONTINUOUS MONITOR SCHEME LOGIC 5-284 L90 Line Current Differential System GE Multilin...
Page 423 CT FAIL 3I0 INPUT 2 PICKUP: This setting selects the 3I_0 pickup value for input 2 (different CT input) of the relay. • CT FAIL 3V0 INPUT: This setting selects the voltage source. GE Multilin L90 Line Current Differential System 5-285...
Page 424 CT FAIL 3V0 INPUT PICKUP: This setting specifies the pickup value for the 3V_0 source. • CT FAIL PICKUP DELAY: This setting specifies the pickup delay of the CT failure element. Figure 5–154: CT FAILURE DETECTOR SCHEME LOGIC 5-286 L90 Line Current Differential System GE Multilin...
Page 425 VT is connected in Delta, do not enabled this function because there is no neutral wire for Delta connected VT. setting specifies the pickup level of 3rd harmonic of 3V0 signal for the VT NEU VT NEU WIRE OPEN 1 3 HRAM PKP WIRE OPEN detection logic to pick up. GE Multilin L90 Line Current Differential System 5-287...
Page 426 SRC1 VT NEU WIRE OPEN TIMER Neutral Wire Open Detect Enabled = 1 20 cycles SOURCE 1 FLEX-ANALOG 3V_0 (3rd Harmonic) SRC1 3V0 3nd Harmonic 827093AO.CDR Figure 5–155: VT FUSE FAIL SCHEME LOGIC 5-288 L90 Line Current Differential System GE Multilin...
Page 427 This setting is relevant if open pole condition at the remote end of the line is to be sensed and utilized by the relay ( FlexLogic operand). OPEN POLE REM OP GE Multilin L90 Line Current Differential System 5-289...
Page 428 When used in configuration with only one breaker, the should be BREAKER 2 FUNCTION “Enabled” and the setting should be “On” (refer to the Breaker Control section earlier in this chapter BREAKER 2 OUT OF SV for additional details). 5-290 L90 Line Current Differential System GE Multilin...
Page 429 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–156: OPEN POLE DETECTOR LOGIC (Sheet 1 of 2) GE Multilin L90 Line Current Differential System 5-291...
Page 430 I_2 / I_1 ratio. The intention of this function is to detect a single-phase broken conductor only. As such two-phase or three-phase broken conductors cannot be detected. 5-292 L90 Line Current Differential System GE Multilin...
Page 431 2 cyc | Ic’ | - | Ic | > 0.05pu Where I’ is 4 cycles old FLEXLOGIC OPERAND BROKEN CONDUCT 1 One phase current loss detection Figure 5–158: BROKEN CONDUCTOR DETECTION LOGIC GE Multilin L90 Line Current Differential System 5-293...
Page 432 • = measured load RMS current before overload occurs. • k= IEC 255-8 k-factor applied to I , defining maximum permissible current above nominal current. • = protected element base (nominal) current. 5-294 L90 Line Current Differential System GE Multilin...
Page 433 -------------- - (EQ 5.37) –   op In When current is less than the dropout level, I > 0.97 × k × I , the element starts decreasing the thermal energy: GE Multilin L90 Line Current Differential System 5-295...
Page 434 30 minutes Busbar 60 minutes 20 minutes Underground cable 20 to 60 minutes 60 minutes The logic for the thermal overload protection element is shown below. Figure 5–160: THERMAL OVERLOAD PROTECTION SCHEME LOGIC 5-296 L90 Line Current Differential System GE Multilin...
Page 435: Pilot Schemes
DUTT RX2: MESSAGE Range: FlexLogic operand DUTT RX3: MESSAGE Range: FlexLogic operand DUTT RX4: MESSAGE Range: Self-Reset, Latched, Disabled DUTT SCHEME TARGET: MESSAGE Self-Reset Range: Disabled, Enabled DUTT SCHEME EVENTS: MESSAGE Disabled GE Multilin L90 Line Current Differential System 5-297...
Page 436 (often via different paths) and building appropriate security logic (such as series (AND gate) or 2-out-of-3 voting logic) with FlexLogic. The settings should be associated with the final DUTT RX1(4) (secure) TX signals. 5-298 L90 Line Current Differential System GE Multilin...
Page 437 OR gates in the FlexLogic and the resulting signals should be configured as the inputs. DUTT RX Figure 5–161: DUTT SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-299...
Page 438 The transmit codes and trip table of the PUTT scheme are identical as those for the direct under-reaching transfer trip scheme. Please refer to Chapter 8: Theory of Operation for more information. 5-300 L90 Line Current Differential System GE Multilin...
Page 439 PUTT RX4 two or more remote terminals should be connected through gates in the FlexLogic and the resulting signals should be configured as the inputs. PUTT RX Figure 5–162: PUTT SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-301...
Page 440 Ground directional overcurrent functions available in the relay can be used in conjunction with the Zone 2 distance element to key the scheme and initiate its opera- tion. This provides increased coverage for high-resistance faults. 5-302 L90 Line Current Differential System GE Multilin...
Page 441 This setting enables the relay to avoid a permanent lock- up of the transmit/receive loop. • ECHO LOCKOUT: This setting defines the lockout period for the echo logic after sending the echo pulse. GE Multilin L90 Line Current Differential System 5-303...
Page 442 In two-bit applications, must be used. In four-bit applications, POTT RX1 POTT RX2 POTT RX1 , and must be used. POTT RX1 POTT RX2 POTT RX3 POTT RX4 5-304 L90 Line Current Differential System GE Multilin...
Page 443 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–163: POTT SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-305...
Page 444 POTT1 RX2: MESSAGE Range: FlexLogic operand POTT1 RX3: MESSAGE Range: FlexLogic operand POTT1 RX4: MESSAGE Range: Self-Reset, Latched, Disabled POTT1 SCHEME TARGET: MESSAGE Self-Reset Range: Disabled, Enabled POTT1 SCHEME EVENTS: MESSAGE Disabled 5-306 L90 Line Current Differential System GE Multilin...
Page 445 Negative-Sequence Directional IOC or Neutral Directional IOC. Both of these ele- ments have separate forward (FWD) and reverse (REV) output operands. The forward indication is used (NEG SEQ DIR OC1 FWD or NEUTRAL DIR OC1 FWD). Figure 5–164: POTT1 (GROUND) SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-307...
Page 446 Range: FlexLogic operand HYB POTT RX3: MESSAGE Range: FlexLogic operand HYB POTT RX4: MESSAGE Range: Self-Reset, Latched, Disabled HYB POTT SCHEME MESSAGE TARGET: Self-Reset Range: Disabled, Enabled HYB POTT EVENT: MESSAGE Disabled 5-308 L90 Line Current Differential System GE Multilin...
Page 447 However, if distance zone 1 picks up during the transient blocking condition, the blocking action is removed. This is to cope with evolving faults when an external fault is followed by an internal fault. Without the zone 1 feedback, the trip would be delayed unnecessarily. GE Multilin L90 Line Current Differential System 5-309...
Page 448 The transmit codes and trip table of the hybrid POTT scheme are the same as those for the permissive under-reaching transfer trip scheme. Please refer to the description of the PUTT scheme for more information. 5-310 L90 Line Current Differential System GE Multilin...
Page 449 HYB POTT RX1 HYB POTT RX1 HYB POTT RX2 four-bit applications, , and must be used. HYB POTT RX1 HYB POTT RX2 HYB POTT RX3 HYB POTT RX4 Figure 5–165: HYBRID POTT SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-311...
Page 450 If used by this scheme, the selected ground directional overcurrent functions must be enabled, config- ured, and programmed accordingly. In single-pole tripping applications, the scheme uses local fault type identification provided by the phase selector together with information received from the remote terminal. 5-312 L90 Line Current Differential System GE Multilin...
Page 451 For greater security and to overcome GND DIR O/C REV spurious directional element operation during transients, adding at least 0.5 cycles of pickup delay to the forward direc- tional element is recommended. GE Multilin L90 Line Current Differential System 5-313...
Page 452 In two-bit applications, BLOCK SCHEME RX1 BLOCK SCHEME RX1 must be used. In four-bit applications, BLOCK SCHEME RX2 BLOCK SCHEME RX1 BLOCK SCHEME RX2 BLOCK SCHEME , and must be used. BLOCK SCHEME RX4 5-314 L90 Line Current Differential System GE Multilin...
Page 453 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–166: DIRECTIONAL COMPARISON BLOCKING SCHEME LOGIC GE Multilin L90 Line Current Differential System 5-315...
Page 454 BITS: 1 Range: FlexLogic operand DCUB RX1: MESSAGE Range: FlexLogic operand DCUB LOG1: MESSAGE Range: FlexLogic operand DCUB RX2: MESSAGE Range: FlexLogic operand DCUB LOG2: MESSAGE Range: FlexLogic operand DCUB RX3: MESSAGE 5-316 L90 Line Current Differential System GE Multilin...
Page 455 . Even though any FlexLogic operand could be set as , thereby enabling the user to com- DIR O/C FWD GND DIR O/C FWD bine responses of various protection elements or to apply extra conditions through FlexLogic equations, this extra sig- GE Multilin L90 Line Current Differential System 5-317...
Page 456 LINE END OPEN PICKUP DELAY: This setting defines the pickup value for validation of the line end open conditions as detected by the line pickup logic via the FlexLogic operand. The validated line end open con- LINE PICKUP LEO PKP 5-318 L90 Line Current Differential System GE Multilin...
Page 457 In two-bit applications, with DCUB RX1 DCUB LOG1 DCUB RX1 DCUB LOG1 with must be used. In four-bit applications, all receive and loss-of-guard signals must be DCUB RX2 DCUB LOG2 used. GE Multilin L90 Line Current Differential System 5-319...
Page 458 5.7 CONTROL ELEMENTS 5 SETTINGS Figure 5–167: DIRECTIONAL COMPARISON UNBLOCKING SCHEME LOGIC 5-320 L90 Line Current Differential System GE Multilin...
Page 459: Autoreclose
Range: 0.00 to 655.35 s in steps of 0.01 AR 3-P DEAD TIME 2: MESSAGE 1.20 s Range: 0.00 to 655.35 s in steps of 0.01 AR 3-P DEAD TIME 3: MESSAGE 2.00 s GE Multilin L90 Line Current Differential System 5-321...
Page 460 Each of the four programs can be set to trigger up to four reclosing attempts. The second, third, and fourth attempts always perform three-pole reclosing and have independent dead time delays. 5-322 L90 Line Current Differential System GE Multilin...
Page 461 If two or more shots AR 3P TD INIT AR 3-P DEAD TIME 2 are enabled, the second, third, and fourth shots are always three-phase and start the timers. AR 3-P DEAD TIME 2(4) GE Multilin L90 Line Current Differential System 5-323...
Page 462 The Initiate signal will stop the transfer timer. After the 3-P dead time times out the Close Breaker 1 signal will close first breaker again 5-324 L90 Line Current Differential System GE Multilin...
Page 463 Breaker 1 if is set to “Yes”. If set to “No” the scheme will be sent to AR TRANSFER 2 TO 1 Lockout by the incomplete sequence timer. GE Multilin L90 Line Current Differential System 5-325...
Page 464 This delay must be longer than the slowest expected trip from any protection not blocked after 5-326 L90 Line Current Differential System GE Multilin...
Page 465 If all con- CLOSE BKR1 CLOSE BKR2 ditions allowing a breaker closure are not satisfied when this time expires, the scheme goes to “Lockout”. The mini- GE Multilin L90 Line Current Differential System 5-327...
Page 466 AR BUS FLT INIT: This setting is used in breaker-and-a-half applications to allow the autoreclose control function to perform reclosing with only one breaker previously opened by bus protection. For line faults, both breakers must open for the autoreclose reclosing cycles to take effect. 5-328 L90 Line Current Differential System GE Multilin...
Page 467 However, a FlexLogic operand, AR MODE SWITCH FAIL, is asserted if either simultaneous multiple activa- tions are initiated, or a single activation is initiated but recloser is already in progress. GE Multilin L90 Line Current Differential System 5-329...
Page 468 In addition, the current AR mode is available as FlexLogic Operands because AR Mode equals to 1, 2, 3, and 4 respec- tively so that it can be monitored and logged. 5-330 L90 Line Current Differential System GE Multilin...
Page 469 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–170: SINGLE-POLE AUTORECLOSE LOGIC (Sheet 2 of 3) GE Multilin L90 Line Current Differential System 5-331...
Page 470 OFF = 0 FLEXLOGIC OPERAND BREAKER 1 ONE P OPEN FLEXLOGIC OPERAND BREAKER 2 ONE P OPEN BKR ONE POLE OPEN (To sheet 1) 827833AA.CDR Figure 5–171: SINGLE-POLE AUTORECLOSE LOGIC (Sheet 3 of 3) 5-332 L90 Line Current Differential System GE Multilin...
Page 471 5 SETTINGS 5.7 CONTROL ELEMENTS Figure 5–172: EXAMPLE RECLOSING SEQUENCE GE Multilin L90 Line Current Differential System 5-333...
Page 472 The update is performed at the beginning of the protection pass so all protection and control functions, as well as FlexLogic equations, are fed with the updated states of the contact inputs. 5-334 L90 Line Current Differential System GE Multilin...
Page 473: Inputs/Outputs
Event Records menu, make the following settings changes: "Breaker Closed (52b)" CONTACT INPUT H5A ID: "Enabled" CONTACT INPUT H5A EVENTS: Note that the 52b contact is closed when the breaker is open and open when the breaker is closed. GE Multilin L90 Line Current Differential System 5-335...
Page 474: Virtual Inputs
FlexLogic equation, it will likely have to be lengthened NOTE in time. A FlexLogic timer with a delayed reset can perform this function. Figure 5–174: VIRTUAL INPUTS SCHEME LOGIC 5-336 L90 Line Current Differential System GE Multilin...
Page 475: Contact Outputs
L-Cont Op 1 Range: FlexLogic operand OUTPUT H1a OPERATE: MESSAGE Range: FlexLogic operand OUTPUT H1a RESET: MESSAGE Range: Operate-dominant, Reset-dominant OUTPUT H1a TYPE: MESSAGE Operate-dominant Range: Disabled, Enabled OUTPUT H1a EVENTS: MESSAGE Disabled GE Multilin L90 Line Current Differential System 5-337...
Page 476 Application Example 3: A make before break functionality must be added to the preceding example. An overlap of 20 ms is required to implement this functionality as described below: 5-338 L90 Line Current Differential System GE Multilin...
Page 477: Virtual Outputs
Logic equations. Any change of state of a virtual output can be logged as an event if programmed to do so. For example, if Virtual Output 1 is the trip signal from FlexLogic and the trip relay is used to signal events, the settings would be programmed as follows: GE Multilin L90 Line Current Differential System 5-339...
Page 478: Remote Devices
In a L90 relay, the device ID that represents the IEC 61850 GOOSE application ID (GoID) name string sent as part of each GOOSE message is programmed in the     SETTINGS PRODUCT SETUP COMMUNICATIONS IEC 61850 PROTOCOL    setting. GSSE/GOOSE CONFIGURATION TRANSMISSION FIXED GOOSE GOOSE ID 5-340 L90 Line Current Differential System GE Multilin...
Page 479: Remote Inputs
Remote input 1 must be programmed to replicate the logic state of a specific signal from a specific remote device for local use. This programming is performed via the three settings shown above. GE Multilin L90 Line Current Differential System...
Page 480: Remote Double-Point Status Inputs
RemDPS , and FlexLogic operands. These operands can then be Ip 1 BAD RemDPS Ip 1 INTERM RemDPS Ip 1 OFF RemDPS Ip 1 ON used in breaker or disconnect control schemes. 5-342 L90 Line Current Differential System GE Multilin...
Page 481: Remote Outputs
1-1 to 1-8 at channel 1 and direct inputs 2-1 to 2-8 at channel 2. Therefore, to take advantage of redundancy, the respective operands from channel 1 and 2 can be NOTE ORed with FlexLogic or mapped separately. GE Multilin L90 Line Current Differential System 5-343...
Page 482: Direct Inputs/Outputs
FlexLogic operand. The setting above is used to select the operand which represents a specific function (as selected by the user) to be transmitted. Direct outputs 2-1 to 2-8 are only functional on three-terminal systems. NOTE 5-344 L90 Line Current Differential System GE Multilin...
Page 483 L90 communication channel (same for 1-2...1-8) (87L is Enabled) SETTING DIRECT OUTPUT 1-1: FLEXLOGIC OPERAND (same for 1-2...1-8) Fail DIRECT I/P 1-1 Off (Flexlogic Operand) (same for 1-2...1-8) 831024A1.CDR Figure 5–175: DIRECT INPUTS/OUTPUTS LOGIC GE Multilin L90 Line Current Differential System 5-345...
Page 484: Resetting
L90 features, such as FlexElements. The base factor is applied to the GOOSE analog input FlexAn- alog quantity to normalize it to a per-unit quantity. The base units are described in the following table. 5-346 L90 Line Current Differential System GE Multilin...
Page 485: Iec 61850 Goose Integers
“Default Value”, then the value of the GOOSE uinteger input is defined by the setting. UINTEGER 1 DEFAULT The GOOSE integer input FlexInteger values are available for use in other L90 functions that use FlexInteger values. GE Multilin L90 Line Current Differential System 5-347...
Page 486: Transducer Inputs And Outputs
–20 to +180 MW; in this case the value would be “–20” and the DCMA INPUT H1 MIN VALUE DCMA INPUT H1 MAX value “180”. Intermediate values between the min and max values are scaled linearly. VALUE 5-348 L90 Line Current Differential System GE Multilin...
Page 487: Rtd Inputs
1.5 pu. FlexElement operands are available to FlexLogic for further interlocking or to operate an output contact directly. Refer to the following table for reference temperature values for each RTD type. GE Multilin L90 Line Current Differential System 5-349...
Page 488 168.47 280.77 233.97 16.00 172.46 291.96 243.30 16.39 175.84 303.46 252.88 16.78 179.51 315.31 262.76 17.17 183.17 327.54 272.94 17.56 186.82 340.14 283.45 17.95 190.45 353.14 294.28 18.34 194.08 366.53 305.44 18.73 5-350 L90 Line Current Differential System GE Multilin...
Page 489: Dcma Outputs
– MAX VAL MIN VAL MAX VAL < 0.1 pu. The resulting characteristic is illustrated in the following figure. DRIVING SIGNAL MIN VAL MAX VAL 842739A1.CDR Figure 5–176: DCMA OUTPUT CHARACTERISTIC GE Multilin L90 Line Current Differential System 5-351...
Page 490 The CT ratio is 5000:5 and the maximum load current is 4200 A. The current should be monitored from 0 A upwards, allow- ing for 50% overload. The phase current with the 50% overload margin is: 5-352 L90 Line Current Differential System GE Multilin...
Page 491 1.27 kV – • ±0.5% of reading For example, under nominal conditions, the positive-sequence reads 230.94 kV and the worst-case error is 0.005 x 230.94 kV + 1.27 kV = 2.42 kV. GE Multilin L90 Line Current Differential System 5-353...
Page 492: Testing
The test mode state is indicated on the relay faceplate by a combination of the Test Mode LED indicator, the In-Service LED indicator, and by the critical fail relay, as shown in the following table. 5-354 L90 Line Current Differential System GE Multilin...
Page 493: Force Contact Inputs
Mode LED will be on, indicating that the relay is in test mode. The state of each contact input may be programmed as “Dis- abled”, “Open”, or “Closed”. All contact input operations return to normal when all settings for this feature are disabled. GE Multilin L90 Line Current Differential System...
Page 494: Force Contact Outputs
PUSHBUTTON 1 FUNCTION input 1 to initiate the Test mode, make the following changes in the menu:   SETTINGS TESTING TEST MODE “Enabled” and “ ” TEST MODE FUNCTION: TEST MODE INITIATE: 5-356 L90 Line Current Differential System GE Multilin...
Page 495: Channel Tests
Range: 0.000 to 9.999 kA in steps of 0.001 PMU 1 IA TEST MESSAGE MAGNITUDE: 1.000 kA Range: –180.00 to 180.00° in steps of 0.05 PMU 1 IA TEST MESSAGE ANGLE: –10.00° GE Multilin L90 Line Current Differential System 5-357...
Page 496 In test mode, the following actions take place: a. The Data Invalid / Test Mode bit (bit 15 in the STAT word) is set. b. The Sim bit in all output datasets is set. 5-358 L90 Line Current Differential System GE Multilin...
Page 497: Actual Values
See page 6-10.  REMAINING CONNECT  PRP See page 6-11.   ACTUAL VALUES  87L DIFFERENTIAL See page 6-15.  METERING  CURRENT  SOURCE SRC 1 See page 6-16.  GE Multilin L90 Line Current Differential System...
Page 498  EVENT RECORDS See page 6-25.   OSCILLOGRAPHY See page 6-26.   DATA LOGGER See page 6-26.   PMU RECORDS See page 6-26.   MAINTENANCE See page 6-27.  L90 Line Current Differential System GE Multilin...
Page 499 6 ACTUAL VALUES 6.1 OVERVIEW  ACTUAL VALUES  MODEL INFORMATION See page 6-28.  PRODUCT INFO   FIRMWARE REVISIONS See page 6-28.  GE Multilin L90 Line Current Differential System...
Page 500 The state displayed will be that of the remote point unless the remote device has been established to be “Offline” in which case the value shown is the programmed default state for the remote input. L90 Line Current Differential System GE Multilin...
Page 501: Remote Double-Point Status Inputs
Range: On, Off, VOff, VOn, IOn, IOff  CONTACT OUTPUTS Cont Op 1  Range: On, Off, VOff, VOn, IOn, IOff Cont Op 2 MESSAGE  Range: On, Off, VOff, VOn, IOn, IOff Cont Op xx MESSAGE GE Multilin L90 Line Current Differential System...
Page 502: Virtual Outputs
The present state of the programmed remote devices is shown here. The message indicates ALL REMOTE DEVICES ONLINE whether or not all programmed remote devices are online. If the corresponding state is "No", then at least one required remote device is not online. L90 Line Current Differential System GE Multilin...
Page 503: Channel Tests
Range: n/a, FAIL, OK VALIDITY OF CHANNEL MESSAGE CONFIGURATION: n/a Range: n/a, FAIL, OK PFLL MESSAGE STATUS: n/a The status information for two channels is shown here. A brief description of each actual value is below: GE Multilin L90 Line Current Differential System...
Page 504: Digital Counters
  PATH: ACTUAL VALUES STATUS SELECTOR SWITCHES Range: Current Position / 7  SELECTOR SWITCHES SELECTOR SWITCH 1  POSITION: 0/7 Range: Current Position / 7 SELECTOR SWITCH 2 MESSAGE POSITION: 0/7 L90 Line Current Differential System GE Multilin...
Page 505: Flex States
The RTC Sync Source actual value is the time synchronizing source the relay is using at present. Possible sources are: Port 1 PTP Clock, Port 2 PTP Clock, Port 3 PTP Clock, IRIG-B, SNTP, and None. GE Multilin L90 Line Current Differential System...
Page 506: Iec 61850 Goose Integers
Range: 0 to 4 MODBUS TCP (max 4) MESSAGE Range: 0 to 2 DNP (max 2) MESSAGE Range: 0 to 2 IEC-104 (max 2) MESSAGE Range: 0 to 4 PMU TCP (max 4) MESSAGE 6-10 L90 Line Current Differential System GE Multilin...
Page 507: Parallel Redundancy Protocol (Prp)
LAN ID in the frame do not match). is a counter for total messages received with an error on Port B (PRP frame, but port received through MISMATCHES PORT B and LAN ID in the frame do not match). GE Multilin L90 Line Current Differential System 6-11...
Page 508: Metering Conventions
WATTS = Negative VARS = Positive PF = Lead PF = Lag PF = Lead Current UR RELAY 827239AC.CDR S=VI Generator Figure 6–1: FLOW DIRECTION OF SIGNED VALUES FOR WATTS AND VARS 6-12 L90 Line Current Differential System GE Multilin...
Page 509 -- - V   -- - V   -- - V   -- - V   -- - V   The above equations apply to currents as well. GE Multilin L90 Line Current Differential System 6-13...
Page 510 SYSTEM SETUP POWER SYSTEM FREQUENCY AND PHASE REFERENCE The example above is illustrated in the following figure. SYSTEM VOLTAGES SYMMETRICAL COMPONENTS WYE VTs DELTA VTs 827844A1.CDR Figure 6–3: MEASUREMENT CONVENTION FOR SYMMETRICAL COMPONENTS 6-14 L90 Line Current Differential System GE Multilin...
Page 511: Differential Current
Terminal 1 refers to the communication channel 1 interface to a remote L90 at terminal 1. Terminal 2 refers to the communication channel 2 interface to a remote L90 at terminal 2. NOTE GE Multilin L90 Line Current Differential System 6-15...
Page 512: Sources
RMS In: MESSAGE 0.000 SRC 1 PHASOR Ia: MESSAGE 0.000 0.0° SRC 1 PHASOR Ib: MESSAGE 0.000 0.0° SRC 1 PHASOR Ic: MESSAGE 0.000 0.0° SRC 1 PHASOR In: MESSAGE 0.000 0.0° 6-16 L90 Line Current Differential System GE Multilin...
Page 513 SRC 1 RMS Vab: MESSAGE 0.00 SRC 1 RMS Vbc: MESSAGE 0.00 SRC 1 RMS Vca: MESSAGE 0.00 SRC 1 PHASOR Vab: MESSAGE 0.000 0.0° SRC 1 PHASOR Vbc: MESSAGE 0.000 0.0° GE Multilin L90 Line Current Differential System 6-17...
Page 514 REACTIVE PWR MESSAGE b: 0.000 SRC 1 REACTIVE PWR MESSAGE c: 0.000 SRC 1 APPARENT PWR MESSAGE 3: 0.000 SRC 1 APPARENT PWR MESSAGE a: 0.000 SRC 1 APPARENT PWR MESSAGE b: 0.000 6-18 L90 Line Current Differential System GE Multilin...
Page 515 DMD IA DATE: MESSAGE 2001/07/31 16:30:07 SRC 1 DMD IB: MESSAGE 0.000 SRC 1 DMD IB MAX: MESSAGE 0.000 SRC 1 DMD IB DATE: MESSAGE 2001/07/31 16:30:07 SRC 1 DMD IC: MESSAGE 0.000 GE Multilin L90 Line Current Differential System 6-19...
Page 516 If the 87L function is enabled, then dedicated 87L frequency tracking is engaged. In this case, the relay uses the METERING   value for all computations, overriding the value. TRACKING FREQUENCY TRACKING FREQUENCY SOURCE FREQUENCY 6-20 L90 Line Current Differential System GE Multilin...
Page 517: Sensitive Directional Power
FREQUENCY RATE OF MESSAGE CHANGE 3: 0.00 Hz/s FREQUENCY RATE OF MESSAGE CHANGE 4: 0.00 Hz/s The metered frequency rate of change for the frequency rate of change elements is shown here. GE Multilin L90 Line Current Differential System 6-21...
Page 518: Flexelements
The L90 Line Current Differential System is provided with optional IEC 61850 communications capability. This feature is specified as a software option at the time of ordering. Refer to the Ordering section of chap- ter 2 for additional details. 6-22 L90 Line Current Differential System GE Multilin...
Page 519: Wattmetric Ground Fault
PMU 1 I1: MESSAGE 0.0000 kA, 0.00° PMU 1 I2: MESSAGE 0.0000 kA, 0.00° PMU 1 I0: MESSAGE 0.0000 kA, 0.00° PMU 1 FREQUENCY: MESSAGE 0.0000 Hz PMU 1 df/dt: MESSAGE 0.0000 Hz/s GE Multilin L90 Line Current Differential System 6-23...
Page 520: Restricted Ground Fault
RTD INPUT xx  -50 °C Actual values for each RTD input channel that is enabled are displayed with the top line as the programmed channel ID and the bottom line as the value. 6-24 L90 Line Current Differential System GE Multilin...
Page 521: Records
If all 1024 event records have been filled, the oldest record will be removed as a new record is added. Each event record shows the event identifier/sequence number, cause, and date/time stamp associated with the event trigger. Refer to the  menu for clearing event records. COMMANDS CLEAR RECORDS GE Multilin L90 Line Current Differential System 6-25...
Page 522: Oscillography
 RECORDING The number of triggers applicable to the phasor measurement unit recorder is indicated by the value. NUMBER OF TRIGGERS The status of the phasor measurement unit recorder is indicated as follows: 6-26 L90 Line Current Differential System GE Multilin...
Page 523: Breaker Maintenance
BKR 1 ARCING AMP  menu for clearing breaker arcing current records. The COMMANDS CLEAR RECORDS BREAKER OPERATING TIME defined as the slowest operating time of breaker poles that were initiated to open. GE Multilin L90 Line Current Differential System 6-27...
Page 524: Product Information
6.5PRODUCT INFORMATION 6.5.1 MODEL INFORMATION   PATH: ACTUAL VALUES PRODUCT INFO MODEL INFORMATION Range: standard GE Multilin order code format;  MODEL INFORMATION ORDER CODE LINE 1: example order code shown  L90-E00-HCH-F8F-H6A Range: standard GE Multilin order code format...
Page 525: Commands And
The states of up to 64 virtual inputs are changed here. The first line of the display indicates the ID of the virtual input. The second line indicates the current or selected status of the virtual input. This status will be a state off (logic 0) or on (logic 1). GE Multilin L90 Line Current Differential System...
Page 526: Clear Records
The complete date, as a minimum, must be entered to allow execution of this command. The new time (if entered) and date will take effect at the moment the ENTER key is clicked. The timescale of the entered time should be local time, including daylight time where and when applicable. L90 Line Current Differential System GE Multilin...
Page 527: Relay Maintenance
. When the two numbers match, the function freezes the synchrophasor actual values and ONE-SHOT SEQUENCE NUMBER the corresponding protocol data items for 30 seconds. This allows manual read-out of the synchrophasor values for the pre- GE Multilin L90 Line Current Differential System...
Page 528 PMU and not to the absolute UTC time. Therefore a simple IRIG-B genera- tor could be used instead. Also, the test set does not have to support GPS synchronization. Any stable signal source can L90 Line Current Differential System GE Multilin...
Page 529: Security
Operator Logoff: Selecting ‘Yes’ allows the Supervisor to forcefully logoff an operator session. • Clear Security Data: Selecting ‘Yes’ allows the Supervisor to forcefully clear all the security logs and clears all the operands associated with the self-tests. GE Multilin L90 Line Current Differential System...
Page 530: Targets Menu
The critical fail relay on the power supply module is de-energized. • All other output relays are de-energized and are prevented from further operation. • The faceplate In Service LED indicator is turned off. • event is recorded. RELAY OUT OF SERVICE L90 Line Current Differential System GE Multilin...
Page 531 How often the test is performed: On power up and whenever the   PRODUCT SETUP INSTALLATION RELAY SETTINGS setting is altered • What to do: Program all settings and then set   to “Programmed”. PRODUCT SETUP INSTALLATION RELAY SETTINGS GE Multilin L90 Line Current Differential System...
Page 532 • What to do: Return the power supply module to GE Digital Energy for battery replacement. To instead dispose of the battery and power supply module, see the battery disposal information at the beginning of this manual.
Page 533 How often the test is performed: Upon initiation of a contact output state change. • What to do: Verify the state of the output contact and contact the factory if the problem persists. GE Multilin L90 Line Current Differential System...
Page 534 DC supply, or as a result of internal relay failure. • How often the test is performed: Event driven. • What to do: Contact the factory. FIRST ETHERNET FAIL SECOND ETHERNET FAIL 7-10 L90 Line Current Differential System GE Multilin...
Page 535 If this message appears, contact the factory and supply the failure code noted in the display. Text in the message identifies the failed module (for example, H81). If operated on a Process Card failure, the Module Fail self-test seals-in (latches) till the UR-series device is restarted. GE Multilin L90 Line Current Differential System 7-11...
Page 536 Brick output failing to respond to an output command can only be detected while the command is active, and so in this case the target is latched. A latched target can be unlatched by pressing the faceplate reset key if the command has ended, however the output may still be non-functional. 7-12 L90 Line Current Differential System GE Multilin...
Page 537: Security
To add user accounts: Select the Security > User Management menu item to open the user management window. Enter a username in the User field. The username must be 4 to 20 characters in length. GE Multilin L90 Line Current Differential System...
Page 538: Modifying User Privileges
The EnerVista security management system must be enabled To modify user privileges: Select the Security > User Management menu item to open the user management window. Locate the username in the User field. L90 Line Current Differential System GE Multilin...
Page 539: Password Requirements
Password must contain characters from three of the following four categories: - English uppercase characters (A through Z) - English lowercase characters (a through z) - Base 10 digits (0 through 9) - Non-alphabetic characters (for example, ~, !, @, #, $,%, &) GE Multilin L90 Line Current Differential System...
Page 540: Cybersentry
> Product Setup > Security, accessible from the top-level menu. NOTE No password or security information are displayed in plain text by the EnerVista software or UR device, nor are they ever transmitted without cryptographic protection. L90 Line Current Differential System GE Multilin...
Page 541: Security Menu
8 SECURITY 8.2 CYBERSENTRY 8.2.2 SECURITY MENU a) CYBERSENTRY SECURITY SETTINGS CyberSentry security settings are configured under Device > Settings > Product Setup > Security. Figure 8–2: CYBERSENTRY SECURITY PANEL GE Multilin L90 Line Current Differential System...
Page 542 Authentication method used by RADIUS EAP-TTLS EAP-TTLS EAP-TTLS Administrator Authentication server. Currently fixed to EAP-TTLS. Method Timeout Timeout in seconds between re- 9999 Administrator transmission requests Retries Number of retries before giving up 9999 Administrator L90 Line Current Differential System GE Multilin...
Page 543 See the Change Text The specified role password-protected. All RADIUS users are following following Me1# and Administrator, password-protected. password password except for section for section for Supervisor, where requirements requireme it is only itself GE Multilin L90 Line Current Differential System...
Page 544 |--------------- Oscillography |--------------- Data Logger |--------------- Demand User Programmable |--------------- LEDs User Programmable |--------------- self test |--------------- Control Pushbuttons User programmable |--------------- Pushbuttons |--------------- Flex states User definable dis- |--------------- plays |--------------- Direct I/O L90 Line Current Differential System GE Multilin...
Page 545 |------------ Clear Records |------------ Set date and time User Displays Targets Actual Values |------------ Front Panel Labels Designer |------------ Status |------------ Metereing |------------ Transducer I/O |------------ Records |------------ Product Info Maintenance |------------ Modbus Analyzer GE Multilin L90 Line Current Differential System...
Page 546 Remote user IDs must reside on an external RADIUS server, and must be provided with the requisite user role (see the fol- lowing example). Users are specified in the RADIUS server configuration file for users. Roles are specified in the RADIUS server dictionary. Example: In the file ‘users’: exampleusername User-Password == "examplepassword" 8-10 L90 Line Current Differential System GE Multilin...
Page 547: Theory Of Operation
This creates a challenge when data is taken at remote locations. The GE approach to clock synchronization relies upon distributed synchronization. Distributed synchronization is accom- plished by synchronizing the clocks to each other rather than to a master clock. Clocks are phase synchronized to each other and frequency synchronized to the power system frequency.
Page 548: Removal Of Decaying Offset
Since the sampling clocks are synchronized, the time stamp is simply a sequence number. L90 Line Current Differential System GE Multilin...
Page 549: Disturbance Detection
CT saturation is detected (see CT Saturation Detection for details); is an adaptive restraint term (see Online Estimate Of Measurement Error for details) LOC_ADA_A The squared restraining current is calculated as a sum of squared local and all remote restraints: GE Multilin L90 Line Current Differential System...
Page 550: Ground Differential Element
     If I , then I ---------------------------------------------------- - REM_REST_A REM_REST_A (EQ 9.14)      – REM_RESTRAINT_A   else I ------------------------------------------------------------------------------------------ - REM_REST_A For three-terminal applications: L90 Line Current Differential System GE Multilin...
Page 551: Clock Synchronization
In all cases, an estimate of phase error is computed and used to automatically adapt the restraint region to compensate. Frequency tracking is provided that will accommodate any fre- quency shift normally encountered in power systems. GE Multilin L90 Line Current Differential System...
Page 552: Frequency Tracking And Phase Locking
One half of the channel asymmetry is then sub- tracted from the computed sampling clock deviation. The compensated deviation drives the phase and frequency lock loop L90 Line Current Differential System GE Multilin...
Page 553: Frequency Detection
Current measurements can generally provide the most accurate information, but are not always available and may contain large errors during faults or switching transients. Time stamped messages are GE Multilin L90 Line Current Differential System...
Page 554 256 to the round trip and add 128 to the phase angle. Also, if the above equations are computed using integer values of time stamps, a conversion to phase angle in radians is required by multiplying by  / 32. L90 Line Current Differential System GE Multilin...
Page 555 ( T1 T2 T2 T1 ) i -3, i-2, i -1, δ θ Calculate 1, 1. Speed up Slow down 831729A2.CDR Figure 9–2: ROUND TRIP DELAY AND CLOCK OFFSET COMPUTATION FROM TIME STAMPS GE Multilin L90 Line Current Differential System...
Page 556: Phase Locking Filter
T = the time between execution of the filter algorithm repeat = time constant for the primary phase locked loop phase = time constant for the frequency locked loop frequency 9-10 L90 Line Current Differential System GE Multilin...
Page 557: Matching Phaselets
A 6 Mhz clock with a 16-bit hardware counter is adequate, provided the method is used for achieving the 32-bit resolu- tion that is described in this document. • An 8-bit time stamp is adequate provided time stamp messages are exchanged once per cycle. • A 4-bit message sequence number is adequate. GE Multilin L90 Line Current Differential System 9-11...
Page 558: Online Estimate Of Measurement Errors
9.1.16 ONLINE ESTIMATE OF MEASUREMENT ERRORS GE's adaptive elliptical restraint characteristic is a good approximation to the cumulative effects of various sources of error in determining phasors. Sources of error include power system noise, transients, inaccuracy in line charging current com- putation, current sensor gain, phase and saturation error, clock error, and asynchronous sampling.
Page 559: Ct Saturation Detection
Trav- elling waves on the transmission line are not compensated for, and contribute to restraint by increasing the measurement of errors in the data set. GE Multilin L90 Line Current Differential System 9-13...
Page 560: Differential Element Characteristics
Because the traditional scheme is not adaptive, the ele- ment settings must allow for the maximum amount of error anticipated during an out-of-zone fault, when CT errors may be high and/or CT saturation may be experienced. 9-14 L90 Line Current Differential System GE Multilin...
Page 561: Relay Synchronization
, which are indicators of a poor or noisy communications channel. If the CRC FAIL LOST PACKET relay recognizes that a packet is lost or corrupted, the 87L feature is not processed at that protection pass. Instead, it waits for the next valid packet. GE Multilin L90 Line Current Differential System 9-15...
Page 562: Operating Condition Characteristics
The char- acteristic for 3 terminal mode is similar where both remote currents are combined together. 9-16 L90 Line Current Differential System GE Multilin...
Page 563 9 THEORY OF OPERATION 9.2 OPERATING CONDITION CHARACTERISTICS Figure 9–7: RESTRAINT CHARACTERISTICS GE Multilin L90 Line Current Differential System 9-17...
Page 564: Trip Decision Example
The breakpoint between the two slopes indicates the point where the restraint area is becoming wider to override uncertainties from CT saturation, fault noise, harmonics, etc. Increasing the slope per- centage increases the width of the restraint area. 9-18 L90 Line Current Differential System GE Multilin...
Page 565 9 THEORY OF OPERATION 9.2 OPERATING CONDITION CHARACTERISTICS loc pu OPERATE RESTRAINT BP=8, P=2, S1=30%, S2=50% BP=4, P=1, S1=30%, S2=50% BP=4, P=1, S1=20%, S2=40% OPERATE rem pu 831725A1.CDR Figure 9–8: SETTINGS IMPACT ON RESTRAINT CHARACTERISTIC GE Multilin L90 Line Current Differential System 9-19...
Page 566: Distance Elements
(SIRs). The filter controls underestimation of the fault voltage magnitude to less than 1% of the nominal and prevents cer- tain phase angle anomalies that can be encountered under heavy CVT noise and high SIRs. 9-20 L90 Line Current Differential System GE Multilin...
Page 567: Distance Characteristics
The limit angle of the comparator is adjustable enabling the user to shape the characteristic as a mho or a lens as shown in the figures below.The memory-polarized mho characteristic has an excellent directional integrity built-in as explained in the Memory polarization section. GE Multilin L90 Line Current Differential System 9-21...
Page 568 B ground element: I j  Z + I_0  K0  Z + I  K0M  Z – V (j  I_0 or j  I_2C)  e • C ground element: I 9-22 L90 Line Current Differential System GE Multilin...
Page 569 + I_0  K0  Z  K0M  Z  Z + I_0  K0  Z  K0M  Z C ground element: – V The blinders apply to the Quad characteristic only. GE Multilin L90 Line Current Differential System 9-23...
Page 570 COMP LIMIT I  Z Directional V_1M DIR COMP LIMIT I  Z I  Z Right Blinder – V 90° I  Z I  Z Left Blinder – V 90° 9-24 L90 Line Current Differential System GE Multilin...
Page 571: Memory Polarization
The memory-polarized mho has an extra directional integrity built-in as illustrated below. The self-polarized mho character- istic is shifted in the reverse direction for a forward fault by an amount proportional to the source impedance, and in the for- ward direction for a reverse fault. GE Multilin L90 Line Current Differential System 9-25...
Page 572: Distance Elements Analysis
Assume the following settings have been entered: Phase Rotation: ABC Right Blinder Reach: 10  Nominal Secondary Voltage: 69.28 V Right Blinder RCA: 88° Distance Reach: 14  Left Blinder Reach: 5  Distance RCA: 88° 9-26 L90 Line Current Differential System GE Multilin...
Page 573 Zero-sequence directional difference angle = | 19.8° – 0.0° | = 19.8°  75° • Negative-sequence directional difference angle = | 19.8° – 0.0° | = 19.8°  75° • Fault-type comparator difference angle = | 19.8° – 19.8° | = 0.0°  50° • GE Multilin L90 Line Current Differential System 9-27...
Page 574 = 1.37 V 19.8°  Z + I_0  K0  Z  K0M  Z = 87.6 V –109.2° – V  Z + I_0  K0  Z = 91.5 V –93.0° 9-28 L90 Line Current Differential System GE Multilin...
Page 575 Fault-type comparator difference angle = | 19.8° – 19.8° | = 0.0°  50° • All six comparators and the overcurrent supervision are satisfied. The Quad Phase A ground element will operate for this fault. GE Multilin L90 Line Current Differential System 9-29...
Page 576: Phase Distance Applied To Power Transformers
------ - V BC_21P BC_21P   ------ - V CA_21P CA_21P   ------ - V AB_21P AB_21P   ------ - V BC_21P BC_21P   ------ - V CA_21P CA_21P 9-30 L90 Line Current Differential System GE Multilin...
Page 577 ------ - 2I BC_21P BC_21P   ------ - 2I CA_21P CA_21P   ------ - I AB_21P AB_21P   ------ - I BC_21P BC_21P   ------ - I CA_21P CA_21P GE Multilin L90 Line Current Differential System 9-31...
Page 578: Example
Normally, in order to respond to the fault shown in the figure, a distance relay shall be applied at the relaying point X. The relay input signals at this location are shown in the following table. 9-32 L90 Line Current Differential System GE Multilin...
Page 579 X, the relay shall be set to 0.687  85° secondary in order to reach to the fault shown in the figure. When installed at H, the relay shall be set to 2.569  88.4° to ensure exactly same coverage. See Chapter 9: Application of Settings for more information on setting calculations. GE Multilin L90 Line Current Differential System 9-33...
Page 580: Single-Pole Tripping
Initiate breaker failure protection for phases A, B and C, either individually or as a group. • Notify the open pole detector when a single pole operation is imminent. • Initiate either single or three pole reclosing. 9-34 L90 Line Current Differential System GE Multilin...
Page 581 If the fault was permanent appropriate protection elements would detect it and place a trip request for the trip output ele- ment. As the is still asserted, the request is executed as a three-pole trip. AR FORCE 3-P TRIP GE Multilin L90 Line Current Differential System 9-35...
Page 582 The response of the system from this point is as described above for the second trip, except the recloser will go to lockout upon the next initiation (depending on the number of shots programmed). 9-36 L90 Line Current Differential System GE Multilin...
Page 583: Phase Selection
If any of the above types is determined, then the corresponding FlexLogic operand below is asserted. GE Multilin L90 Line Current Differential System 9-37...
Page 584: Communications Channels For Pilot-Aided Schemes
Schemes can be used with channels that can carry one, two or four bits. Using a one-bit channel, the schemes at all terminals of the line use their local phase selectors to identify the fault type and initiate appropriate tripping actions. In 9-38 L90 Line Current Differential System GE Multilin...
Page 585 BIT PATTERN RECEIVED REMOTE DETERMINATION LOCAL DETERMINATION OF TRIP OUTPUT OF FAULT TYPE FAULT TYPE AG Fault Trip Phase A (A+N/G) BG Fault Trip Phase B (B+N/G) CG Fault Trip Phase C (C+N/G) GE Multilin L90 Line Current Differential System 9-39...
Page 586 Table 9–18: BLOCKING SCHEME TRANSMIT CODES FOR 2-BIT CHANNELS PHASE SELECTOR DETERMINATION BIT PATTERN TRANSMITTED FLEXLOGIC™ OPERANDS OF FAULT TYPE ASSERTED TX1 STOP TX2 STOP AG, BC, BCG BG, CA, CAG CG, AB, ABG, 3P CG, AB, ABG, 3P, Unrecognized 9-40 L90 Line Current Differential System GE Multilin...
Page 587 DIR BLOCK TRIP C AG, BC, BCG BG, CA, CAG CG, AB, ABG, 3P, Unrecognized AB, ABG, 3P, Unrecognized DIR BLOCK TRIP 3P AG, BC, BCG BC, BCG Unrecognized BG, CA, CAG CA, CAG Unrecognized GE Multilin L90 Line Current Differential System 9-41...
Page 588 The TX1, TX2, TX3, TX4, RX1, RX2, RX3 and RX4 operands are used. Table 9–23: PERMISSIVE SCHEME TRANSMIT CODES FOR 4-BIT CHANNELS PHASE SELECTOR BIT PATTERN TRANSMITTED DETERMINATION OF FAULT TYPE AB, ABG, BC, BCG, CA, CAG, 3P, Unrecognized 9-42 L90 Line Current Differential System GE Multilin...
Page 589 BG, AB, ABG, BC, BCG, 3P, Trip Phase B Unrecognized MULTI-P CG, BC, BCG, CA, CAG, 3P, Trip Phase C Unrecognized MULTI-P BC, BCG Trip Three Phases CA, CAG AB, ABG MULTI-P Unrecognized GE Multilin L90 Line Current Differential System 9-43...
Page 590 BG, AB, ABG, BC, BCG, 3P, DIR BLOCK TRIP B Unrecognized MULTI-P CG, BC, BCG, CA, CAG, 3P, DIR BLOCK TRIP C Unrecognized MULTI-P BC, BCG DIR BLOCK TRIP 3P CA, CAG AB, ABG MULTI-P Unrecognized 9-44 L90 Line Current Differential System GE Multilin...
Page 591 AG, AB, ABG, CA, DCUB TRIP B CAG, 3P, unrecognized MULTI-P CG, BC, BCG, CA, DCUB TRIP C CAG, 3P, unrecognized MULTI-P BC, BCG DCUB TRIP 3P CA, CAG AB, ABG MULTI-P 3P or unrecognized GE Multilin L90 Line Current Differential System 9-45...
Page 592: Permissive Echo Signaling
For the directional comparison unblocking scheme, the echo is performed in the same manner as the Hybrid POTT echo, but by applying additionally the following logic for both the Rx (received) and LOG (loss-of-guard) for each channel: ECHO = LOG AND RX NOTE 9-46 L90 Line Current Differential System GE Multilin...
Page 593: Pilot Scheme / Phase Selector Coordination
In other cases, it is not recommended to delay the local trip decision. GE Multilin L90 Line Current Differential System...
Page 594: Cross-Country Fault Example
If a four-bit channel is used both terminals will trip phase A only, (see the Tables below) which is the desired outcome. TERMINAL REMOTE DATA LOCAL DATA BIT PATTERN RECEIVED REMOTE DETERMINATION LOCAL DETERMINATION TRIP OUTPUT OF FAULT TYPE OF FAULT TYPE Trip Phase A Trip Phase A 9-48 L90 Line Current Differential System GE Multilin...
Page 595: Overview
VT fuse fail condition of the first source of 87L function. During VT fuse fail conditions, transmitted voltage is substituted with zero, signaling to remote peers that multi-ended fault location should be inhibited. The impedance for fault location calculation (in per-unit values) is calculated as follows. GE Multilin L90 Line Current Differential System 9-49...
Page 596 A similar set of equations is applied to determine whether the fault is between the tap and the local terminal or between the tap and remote terminal 1. Next, having all the data prepared, the following universal equation is used to calculate the fault location. 9-50 L90 Line Current Differential System GE Multilin...
Page 597 RELAY 2 TO TAP RELAY 3 TO TAP 21.29  80.5° 36.50  80.5° 16.73  80.5° Impedance Length 70 km 120 km 55 km The three relays are connected as shown below. GE Multilin L90 Line Current Differential System 9-51...
Page 598 Relay 3: 1.2775 pu 56.917° – When subjected to the expanded Clarke transform in the previous sub-section, the local voltages yield the following values (in per-unit values of the nominal primary phase-to-ground voltage): 9-52 L90 Line Current Differential System GE Multilin...
Page 599 Note that the correct value of the tap voltage is equal for all three relays. This is expected since the per-unit base for the composite voltages is equal for all three relays. The three relays calculate the differences as follows (refer to the previous sub-section for equations). GE Multilin L90 Line Current Differential System 9-53...
Page 600 The actual fault location in this example was 50.00km from relay 2 as shown below. channel 1 channel 1 Relay 1 Relay 2 50 km 70 km 120 km channel 2 channel 2 Relay 3 channel 1 channel 2 831812A1.CDR Figure 9–17: ACTUAL FAULT LOCATION 9-54 L90 Line Current Differential System GE Multilin...
Page 601: Single-Ended Fault Locator
Im() represents the imaginary part of a complex number. Solving the above equation for the unknown m creates the following fault location algorithm:     Im V --------------------------------------- - (EQ 9.60)      Im Z I where * denotes the complex conjugate and Apre GE Multilin L90 Line Current Differential System 9-55...
Page 602 -- - V (EQ 9.68) SYS0   Z -- - V SYS0 where Z is the equivalent zero-sequence impedance behind the relay as entered under the fault report setting menu. SYS0 9-56 L90 Line Current Differential System GE Multilin...
Page 603 Since the fault locator algorithm is based on the single-end measurement method, in three-terminal config- uration the estimation of fault location may not be correct at all three terminals especially if fault occurs NOTE behind the line's tap respective to the given relay. GE Multilin L90 Line Current Differential System 9-57...
Page 604 9.6 FAULT LOCATOR 9 THEORY OF OPERATION 9-58 L90 Line Current Differential System GE Multilin...
Page 605: Application Of Settings
The CTs should be class TPX or TPY (class TPZ should only be used after discussion with both the manufacturer of the CT and GE Multilin) or IEC class 5P20 or better. The CT primary current rating should be somewhat higher than the maximum continuous current, but not extremely high relative to maximum load because the differential element minimum sensitivity setting is approximately 0.2 ...
Page 606: Calculation Example 2
  0.008   ---------------------------------- - 4.71 0.75 0.52 291.89 V (< 300 V, which is OK) (EQ 10.9) ratio of 300:1 The CT will provide acceptable performance in this application. 10-2 L90 Line Current Differential System GE Multilin...
Page 607: Current Differential (87L) Settings
10.2CURRENT DIFFERENTIAL (87L) SETTINGS 10.2.1 INTRODUCTION Software is available from the GE Digital Energy website that is helpful in selecting settings for the specific applica- tion. Checking the performance of selected element settings with respect to known power system fault parameters makes it relatively simple to choose the optimum settings for the application.
Page 608: Ct Tap
For relay 1, channel 1 communicates to relay 2 and channel 2 communicates to relay 3 • For relay 2, channel 1 communicates to relay 1 and channel 2 communicates to relay 3 10-4 L90 Line Current Differential System GE Multilin...
Page 609 This satisfies the equality condition indicated earlier. During on-load tests, the differential current at all terminals should be the same and generally equal to the charging current if the tap and CT ratio settings are chosen correctly. GE Multilin L90 Line Current Differential System 10-5...
Page 610: Breaker-And-A-Half
– VT3 circuitry is connected to the F5 to F7 terminals of the F8F modules (three-phase VT for distance, metering, syn- chrocheck, charging current compensation, etc.; VT bank “F”). Figure 10–1: BREAKER-AND-A-HALF APPLICATION The CTs and VTs are configured according to the following ratios and connections (EnerVista UR Setup example shown): 10-6 L90 Line Current Differential System GE Multilin...
Page 611 CURRENT DIFF SIGNAL to “SRC 1” and to “SRC 2”. SOURCE 1 CURRENT DIFF SIGNAL SOURCE 2 For distance and backup overcurrent, make the following settings changes (EnerVista UR Setup example shown): GE Multilin L90 Line Current Differential System 10-7...
Page 612 10 APPLICATION OF SETTINGS For breaker failure 1 and 2, make the following settings changes (EnerVista UR Setup example shown): For synchrocheck 1 and 2, make the following settings changes (EnerVista UR Setup example shown): 10-8 L90 Line Current Differential System GE Multilin...
Page 613: Distributed Bus Protection
If more than 4 but less than 8 CTs are to be connected to CT TAP the L90 at one bus, the 3-terminal system can be applied, provided the user does not exceed a total of 12 CTs. 831787A1.CDR Figure 10–2: DISTRIBUTED BUS PROTECTION GE Multilin L90 Line Current Differential System 10-9...
Page 614: Channel Asymmetry Compensation Using Gps
87L DIFF 1 TIME CHNG operand must be ORed with the 87L DIFF 2 TIME CHNG FlexLogic™ operand. The Block 87L (VO1) output is reset if the GPS signal is restored and the 87L element is ready to operate. 10-10 L90 Line Current Differential System GE Multilin...
Page 615: Compensation Method 2
Create FlexLogic similar to that shown below to switch the 87L element to Settings Group 2 (with most sensitive set- tings) if the L90 has a valid GPS time reference. If a GPS or 87L communications failure occurs, the L90 will switch back to Settings Group 1 with less sensitive settings. GE Multilin L90 Line Current Differential System 10-11...
Page 616 Set the 87L element with different differential settings for Settings Groups 1 and 2 as shown below Enable GPS compensation when the GPS signal is valid and switch to Settings Group 2 (with more sensitive settings) as shown below. 10-12 L90 Line Current Differential System GE Multilin...
Page 617: Distance Backup/Supervision
LV fault. For this system configuration, a 3-ter- minal L90 should be utilized; the third terminal is then fed from CT on the high side of the tapped transformer. GE Multilin L90 Line Current Differential System...
Page 618: Phase Distance
Circuit loading limitations created by a long zone reach may be overcome by using lens or quadrilateral characteristics and/or a load encroachment supervising characteristic. Consider- 10-14 L90 Line Current Differential System GE Multilin...
Page 619: Ground Distance
Similar to the phase fault case, a zone 3 element must be time coordinated with timed clearances on the next section. GE Multilin L90 Line Current Differential System 10-15...
Page 620 The fifth distance zone can be used as an alarm zone, indicating that load impedance is approaching the zone characteristic. 10-16 L90 Line Current Differential System GE Multilin...
Page 621: Protection Signaling Schemes
This scheme is intended for two-terminal line applications only. This scheme uses an over-reaching Zone 2 distance element to essentially compare the direction to a fault at both the ends of the line. GE Multilin L90 Line Current Differential System 10-17...
Page 622: Hybrid Pott Scheme (Hyb-Pott)
In order to cope with weak-infeed conditions an echo feature is made available. By default the scheme uses the reverse-looking Zone 4 distance element to identify reverse faults. Additionally, reverse- looking ground directional overcurrent functions can be used in conjunction with Zone 4. 10-18 L90 Line Current Differential System GE Multilin...
Page 623: Directional Comparison Blocking
Typically, the output operand should be pro- grammed to initiate a trip, breaker fail, and auto-reclose, and drive a user-programmable LED as per user application. GE Multilin L90 Line Current Differential System...
Page 624: Directional Comparison Unblocking
During normal operation, the loss-of-guard signal will be seen momentarily before the permissive signal is DCUB RX received for each channel being operated, as the channel transitions from guard to permissive frequency, but the scheme operates instantaneously after any signal is received. DCUB RX 10-20 L90 Line Current Differential System GE Multilin...
Page 625 The permissive key carrier signals through must still be assigned to the DCUB TX1 DCUB TX4 tripping/operating logic, and to output contacts as per the usual L90 logic/output assignments. GE Multilin L90 Line Current Differential System 10-21...
Page 626: Series Compensated Lines
For the Receiving Bus: 0.6 + 0.5 = 1.1 pu if the line-side (B) VTs are used 0.6 + 0.5 + 0.5 = 1.6 pu if the bus-side (A) VTs are used 10-22 L90 Line Current Differential System GE Multilin...
Page 627: Ground Directional Overcurrent
Net inductive reactance from relay through far-end busbar = 10 – 4 = 6 ; the offset cannot be higher than 6 . • It is recommended to use 3.5  offset impedance. • GE Multilin L90 Line Current Differential System 10-23...
Page 628: Description
The above calculations should take into account the requirement for the pickup setting resulting from line charging currents. Certainly, a security factor must be applied to the above stability conditions. Alternatively, distance supervision can be con- sidered to prevent maloperation due to transformer load currents. 10-24 L90 Line Current Differential System GE Multilin...
Page 629: Lv-Side Faults
= “Enabled”). Removing the zero-sequence component from the phase currents may cause the L90 to overtrip REMOVAL healthy phases on internal ground fault. This is not a limitation, as the single-pole tripping is not recommended for lines with tapped transformers. GE Multilin L90 Line Current Differential System 10-25...
Page 630: Instantaneous Elements
MAXIMUM ERROR ON STARTUP, RECOMMENDED BLOCK (OPERATE SIGNAL VS. SETTING) DURATION Phase undervoltage 0.7 seconds Phase instantaneous overcurrent 0.5 seconds Ground distance zone 1 Not needed Phase distance zone 1 Not needed 10-26 L90 Line Current Differential System GE Multilin...
Page 631: Phase Distance Through Power Transformers
Because both VTs and CTs are located on the same side as the intended reach point, no correction for the transformer ratio is required. The primary impedance must be only re-calcu- lated to secondary quantities: GE Multilin L90 Line Current Differential System 10-27...
Page 632: Example
PHS DIST Z1 XMFR VOL CONNECTION: "Dy1" PHS DIST Z1 XMFR CUR CONNECTION: The settings are: "2.60" PHS DIST REACH: "89" PHS DIST RCA: "Yd11" PHS DIST XMFR VOL CONNECTION: "None" PHS DIST XMFR CUR CONNECTION: 10-28 L90 Line Current Differential System GE Multilin...
Page 633: Commissioning
REMOTE LOOPBACK CHANNEL NUMBER: 16. Verify and record the Remote Loopback Test was performed properly with the following status check:    "OK" ACTUAL VALUES STATUS CHANNEL TESTS CHANNEL 1(2) REMOTE LOOPBACK STATUS: GE Multilin L90 Line Current Differential System 11-1...
Page 634: Clock Synchronization Tests
“OK” ACTUAL VALUES STATUS CHANNEL TESTS CHANNEL 1(2) STATUS:    “n/a” ACTUAL VALUES STATUS CHANNEL TESTS REMOTE LOOPBACK STATUS:    “OK” ACTUAL VALUES STATUS CHANNEL TESTS PFLL STATUS: 11-2 L90 Line Current Differential System GE Multilin...
Page 635: Current Differential
• Restore the communication circuits to normal. Download the UR Test software from the GE Multilin website (http://www.GEindustrial.com/multilin) or contact GE Multilin for information about the UR current differential test program which allows the user to simulate different operating conditions for verifying correct responses of the relays during commissioning activities.
Page 636: Local-Remote Relay Tests
These phasors and differential currents can be monitored at the ACTUAL VAL-   menu where all current magnitudes and angles can be observed and con- METERING 87L DIFFERENTIAL CURRENT clusions of proper relay interconnections can be made. 11-4 L90 Line Current Differential System GE Multilin...
Page 637: Parameter Lists
6161 SRC 1 In Mag Amps Source 1 neutral current magnitude 6163 SRC 1 In Angle Degrees Source 1 neutral current angle 6164 SRC 1 Ig RMS Amps Source 1 ground current RMS GE Multilin L90 Line Current Differential System...
Page 638 6291 SRC 3 In Angle Degrees Source 3 neutral current angle 6292 SRC 3 Ig RMS Amps Source 3 ground current RMS 6294 SRC 3 Ig Mag Degrees Source 3 ground current magnitude L90 Line Current Differential System GE Multilin...
Page 639 SRC 1 Vab Mag Volts Source 1 phase AB voltage magnitude 6679 SRC 1 Vab Angle Degrees Source 1 phase AB voltage angle 6680 SRC 1 Vbc Mag Volts Source 1 phase BC voltage magnitude GE Multilin L90 Line Current Differential System...
Page 640 SRC 3 Vbg Mag Volts Source 3 phase BG voltage magnitude 6795 SRC 3 Vbg Angle Degrees Source 3 phase BG voltage angle 6796 SRC 3 Vcg Mag Volts Source 3 phase CG voltage magnitude L90 Line Current Differential System GE Multilin...
Page 641 Source 4 positive-sequence voltage angle 6889 SRC 4 V_2 Mag Volts Source 4 negative-sequence voltage magnitude 6891 SRC 4 V_2 Angle Degrees Source 4 negative-sequence voltage angle 7168 SRC 1 P Watts Source 1 three-phase real power GE Multilin L90 Line Current Differential System...
Page 642 SRC 3 Phase A PF Source 3 phase A power factor 7258 SRC 3 Phase B PF Source 3 phase B power factor 7259 SRC 3 Phase C PF Source 3 phase C power factor L90 Line Current Differential System GE Multilin...
Page 643 Fault 1 pre-fault phase A current magnitude 9026 Prefault Ia Ang [0] Degrees Fault 1 pre-fault phase A current angle 9027 Prefault Ib Mag [0] Amps Fault 1 pre-fault phase B current magnitude GE Multilin L90 Line Current Differential System...
Page 644 9362 Diff Curr IA Mag Amps Differential current phase A magnitude 9364 Diff Curr IB Mag Amps Differential current phase B magnitude 9366 Diff Curr IC Mag Amps Differential current phase C magnitude L90 Line Current Differential System GE Multilin...
Page 645 Phasor measurement unit 1 auxiliary voltage angle 9548 PMU 1 V1 Mag Volts Phasor measurement unit 1 positive-sequence voltage magnitude 9550 PMU 1 V1 Angle Degrees Phasor measurement unit 1 positive-sequence voltage angle GE Multilin L90 Line Current Differential System...
Page 646 22 actual value 13548 DCMA Inputs 23 Value dcmA input 23 actual value 13550 DCMA Inputs 24 Value dcmA input 24 actual value 13552 RTD Inputs 1 Value RTD input 1 actual value A-10 L90 Line Current Differential System GE Multilin...
Page 647 RTD input 45 actual value 13597 RTD Inputs 46 Value RTD input 46 actual value 13598 RTD Inputs 47 Value RTD input 47 actual value 13599 RTD Inputs 48 Value RTD input 48 actual value GE Multilin L90 Line Current Differential System A-11...
Page 648 PMU Num Triggers Phasor measurement unit recording number of triggers 63488 Dist Iab Mag Volts Distance Iab magnitude 63490 Dist Iab Angle Degrees Distance Iab angle 63491 Dist Ibc Mag Volts Distance Ibc magnitude A-12 L90 Line Current Differential System GE Multilin...
Page 649 Distance IabZR Vab IabZR angle 3 63539 IabZR V IabZR Ang [4] Degrees Distance IabZR Vab IabZR angle 4 63540 IabZR V IabZR Ang [5] Degrees Distance IabZR Vab IabZR angle 5 GE Multilin L90 Line Current Differential System A-13...
Page 650 IagZL V IagZL Ang[5] Degrees Distance IagZL Vag IagZL angle 5 63586 IbgZL V IbgZL Ang[1] Degrees Distance IbgZL Vbg IbgZL angle 1 63587 IbgZL V IbgZL Ang[2] Degrees Distance IbgZL Vbg IbgZL angle 2 A-14 L90 Line Current Differential System GE Multilin...
Page 651: Flexinteger Items
IEC61850 GOOSE UInteger input 13 9994 GOOSE UInt Input 14 IEC61850 GOOSE UInteger input 14 9996 GOOSE UInt Input 15 IEC61850 GOOSE UInteger input 15 9998 GOOSE UInt Input 16 IEC61850 GOOSE UInteger input 16 GE Multilin L90 Line Current Differential System A-15...
Page 652 A.1 PARAMETER LISTS APPENDIX A A-16 L90 Line Current Differential System GE Multilin...
Page 653: Modbus Rtu Protocol
Broadcast mode is only recognized when associated with function code 05h. For any other function code, a packet with broadcast mode slave address 0 will be ignored. GE Multilin L90 Line Current Differential System...
Page 654: Algorithm
No: go to 8; Yes: G (+) A --> A and continue. Is j = 8? No: go to 5; Yes: continue i + 1 --> i Is i = N? No: go to 3; Yes: continue A --> CRC L90 Line Current Differential System GE Multilin...
Page 655: Modbus Function Codes
Modbus officially defines function codes from 1 to 127 though only a small subset is generally needed. The relay supports some of these functions, as summarized in the following table. Subsequent sections describe each function code in detail. FUNCTION CODE MODBUS DEFINITION GE MULTILIN DEFINITION Read holding registers Read actual values or settings Read holding registers...
Page 656: Execute Operation (Function Code 05H
DATA STARTING ADDRESS - low DATA STARTING ADDRESS - low DATA - high DATA - high DATA - low DATA - low CRC - low CRC - low CRC - high CRC - high L90 Line Current Differential System GE Multilin...
Page 657: Store Multiple Settings (Function Code 10H
PACKET FORMAT EXAMPLE (HEX) SLAVE ADDRESS SLAVE ADDRESS FUNCTION CODE FUNCTION CODE CRC - low order byte ERROR CODE CRC - high order byte CRC - low order byte CRC - high order byte GE Multilin L90 Line Current Differential System...
Page 658: File Transfers
Cleared Date to the present date and time. To read binary COMTRADE oscillography files, read the following filenames: OSCnnnn.CFG and OSCnnn.DAT Replace “nnn” with the desired oscillography trigger number. For ASCII format, use the following file names OSCAnnnn.CFG and OSCAnnn.DAT L90 Line Current Differential System GE Multilin...
Page 659: Modbus Password Operation
400A. The entered setting password must match the current setting password setting, or must be zero, to change settings or download firmware. GE Multilin L90 Line Current Differential System...
Page 660 Command or setting password security access is restricted to the particular port or particular TCP/IP connection on which the entry was made. Passwords must be entered when accessing the relay through other ports or connections, and the passwords must be re-entered after disconnecting and re-connecting on TCP/IP. L90 Line Current Differential System GE Multilin...
Page 661: Memory Mapping
0414 Virtual Input 21 State 0 to 1 F108 0 (Off) 0415 Virtual Input 22 State 0 to 1 F108 0 (Off) 0416 Virtual Input 23 State 0 to 1 F108 0 (Off) GE Multilin L90 Line Current Differential System...
Page 662 ...Repeated for Digital Counter 3 0818 ...Repeated for Digital Counter 4 0820 ...Repeated for Digital Counter 5 0828 ...Repeated for Digital Counter 6 0830 ...Repeated for Digital Counter 7 0838 ...Repeated for Digital Counter 8 B-10 L90 Line Current Differential System GE Multilin...
Page 663 0 to 65535 F500 160B Field latching output physical states 0 to 65535 F500 160C Field unit online/offline states 0 to 65535 F500 160D Fiedl RTD input trouble states 0 to 65535 F500 GE Multilin L90 Line Current Differential System B-11...
Page 664 Field Transducer x Value -32.768 to 32.767 0.001 F004 16CA ...Repeated for module number 2 16CC ...Repeated for module number 3 16CE ...Repeated for module number 4 16D0 ...Repeated for module number 5 B-12 L90 Line Current Differential System GE Multilin...
Page 665 0 to 999999.999 0.001 F060 1A15 Source 1 Phase AB or AC Voltage Magnitude 0 to 999999.999 0.001 F060 1A17 Source 1 Phase AB or AC Voltage Angle -359.9 to 0 degrees F002 GE Multilin L90 Line Current Differential System B-13...
Page 666 Source Energy (Read Only Non-Volatile) (6 modules) 1D00 Source 1 Positive Watthour 0 to 1000000000000 0.001 F060 1D02 Source 1 Negative Watthour 0 to 1000000000000 0.001 F060 1D04 Source 1 Positive Varhour 0 to 1000000000000 varh 0.001 F060 B-14 L90 Line Current Differential System GE Multilin...
Page 667 Breaker flashover 1 side 2 source 0 to 6 F211 0 (None) 2199 Breaker flashover 1 status closed A 0 to 4294967295 F300 219B Breaker flashover 1 status closed B 0 to 4294967295 F300 GE Multilin L90 Line Current Differential System B-15...
Page 668 Fault 1 Prefault Phase C Current Angle -359.9 to 0 degrees F002 2349 Fault 1 Prefault Phase A Voltage Magnitude 0 to 999999.999 0.001 F060 234B Fault 1 Prefault Phase A Voltage Angle -359.9 to 0 degrees F002 B-16 L90 Line Current Differential System GE Multilin...
Page 669 0 to 999999.999 0.001 F060 2494 Differential Current IB Magnitude 0 to 999999.999 0.001 F060 2496 Differential Current IC Magnitude 0 to 999999.999 0.001 F060 2498 Local IA Angle -359.9 to 0 degrees F002 GE Multilin L90 Line Current Differential System B-17...
Page 670 PMU 1 Phase C Voltage Magnitude 0 to 999999.999 0.001 F060 2548 PMU 1 Phase C Voltage Angle -359.9 to 0 ° F002 2549 PMU 1 Auxiliary Voltage Magnitude 0 to 999999.999 0.001 F060 B-18 L90 Line Current Differential System GE Multilin...
Page 671 IEC 61850 GGIO5 uinteger input 10 operand F612 26BA IEC 61850 GGIO5 uinteger input 11 operand F612 26BB IEC 61850 GGIO5 uinteger input 12 operand F612 26BC IEC 61850 GGIO5 uinteger input 13 operand F612 GE Multilin L90 Line Current Differential System B-19...
Page 672 Fault Report 10 Time 0 to 4294967295 F050 3044 Fault Report 11 Time 0 to 4294967295 F050 3046 Fault Report 12 Time 0 to 4294967295 F050 3048 Fault Report 13 Time 0 to 4294967295 F050 B-20 L90 Line Current Differential System GE Multilin...
Page 673 Number of Available Events 0 to 4294967295 F003 3404 Event Recorder Last Cleared Date 0 to 4294967295 F050 Event recorder commands (read/write) 3406 Event Recorder Clear Command 0 to 1 F126 0 (No) GE Multilin L90 Line Current Differential System B-21...
Page 674 °C F002 3509 RTD Input 26 Value -32768 to 32767 °C F002 350A RTD Input 27 Value -32768 to 32767 °C F002 350B RTD Input 28 Value -32768 to 32767 °C F002 B-22 L90 Line Current Differential System GE Multilin...
Page 675 0 to 999999999 F003 3766 PTP Port 1 State (3 items) 0 to 4 F625 0 (Disabled) 3769 RTC Offset 0 to 999999999 F004 376B PTP - IRIG-B Delta -500000000 to 500000000 F004 GE Multilin L90 Line Current Differential System B-23...
Page 676 0 (Off) 3909 Field Contact Input 1 Debounce Time 0 to 16 F001 390A Field Contact Input 1 Events 0 to 1 F102 1 (Enabled) 390B ...Repeated for Field Contact Input 2 B-24 L90 Line Current Differential System GE Multilin...
Page 677 ...Repeated for Field Shared Input 8 3B48 ...Repeated for Field Shared Input 9 3B51 ...Repeated for Field Shared Input 10 3B5A ...Repeated for Field Shared Input 11 3B63 ...Repeated for Field Shared Input 12 GE Multilin L90 Line Current Differential System B-25...
Page 678 3EE6 ...Repeated for Field Shared Output 15 3EF3 ...Repeated for Field Shared Output 16 Field Unit RTDs (Read/Write Setting) (8 modules) 3F00 Field Unit RTD 1Name 0 to 1 F205 "RTD 1" B-26 L90 Line Current Differential System GE Multilin...
Page 679 5 to 480 F001 402C Invalid Password Attempts 2 to 5 F001 402D Password Lockout Duration 5 to 60 F001 Passwords (Read/Write) 402E Password Access Events 0 to 1 F102 0 (Disabled) GE Multilin L90 Line Current Differential System B-27...
Page 680 2 (1) 40B4 DNP current default deadband 0 to 100000000 F003 30000 40B6 DNP voltage default deadband 0 to 100000000 F003 30000 40B8 DNP power default deadband 0 to 100000000 F003 30000 B-28 L90 Line Current Differential System GE Multilin...
Page 681 DNP Available TCP/IP Connections 0 to 2 F001 4162 IEC Available TCP/IP Connections 0 to 2 F001 4163 MMS Available TCP/IP Connections 0 to 5 F001 4164 PMU Available TCP/IP Connections 0 to 4 F001 GE Multilin L90 Line Current Differential System B-29...
Page 682 ...Repeated for User-Programmable LED 3 42C9 ...Repeated for User-Programmable LED 4 42CC ...Repeated for User-Programmable LED 5 42CF ...Repeated for User-Programmable LED 6 42D2 ...Repeated for User-Programmable LED 7 42D5 ...Repeated for User-Programmable LED 8 B-30 L90 Line Current Differential System GE Multilin...
Page 683 4294966272 4374 IPv4 Network Route 1 Gateway 0 to 4294967295 F003 2130706433 4376 ...Repeated for Route 2 437C ...Repeated for Route 3 4382 ...Repeated for Route 4 4388 ...Repeated for Route 5 GE Multilin L90 Line Current Differential System B-31...
Page 684 ...Repeated for Source 4 459C ...Repeated for Source 5 45A3 ...Repeated for Source 6 Power System (Read/Write Setting) 4600 Nominal Frequency 25 to 60 F001 4601 Phase Rotation 0 to 1 F106 0 (ABC) B-32 L90 Line Current Differential System GE Multilin...
Page 685 Demand Input 0 to 4294967295 F300 Demand (Read/Write Command) 490F Demand Clear Record 0 to 1 F126 0 (No) FlexCurve A (Read/Write Setting) 4910 FlexCurve A (120 items) 0 to 655535 F011 GE Multilin L90 Line Current Differential System B-33...
Page 686 Raw Field Data Brick Tx Power 0 to 0.01 F002 4E24 Raw Field Data Brick Rx Power 0 to 0.1 F002 4E25 Raw Field Data Brick Diagnostics (2 items) 0 to 65535 F500 B-34 L90 Line Current Differential System GE Multilin...
Page 687 ...Repeated for RTD Input 31 566C ...Repeated for RTD Input 32 5680 ...Repeated for RTD Input 33 5694 ...Repeated for RTD Input 34 56A8 ...Repeated for RTD Input 35 56BC ...Repeated for RTD Input 36 GE Multilin L90 Line Current Differential System B-35...
Page 688 0 to 1 F122 0 (Phasor) 5903 Phase Time Overcurrent 1 Pickup 0 to 30 0.001 F001 1000 5904 Phase Time Overcurrent 1 Curve 0 to 16 F103 0 (IEEE Mod Inv) B-36 L90 Line Current Differential System GE Multilin...
Page 689 0 to 1 F102 0 (Disabled) 5C01 Neutral Instantaneous Overcurrent 1 Signal Source 0 to 5 F167 0 (SRC 1) 5C02 Neutral Instantaneous Overcurrent 1 Pickup 0 to 30 0.001 F001 1000 GE Multilin L90 Line Current Differential System B-37...
Page 690 ...Repeated for Ground Instantaneous Overcurrent 7 5E17 ...Repeated for Ground Instantaneous Overcurrent 8 5E28 ...Repeated for Ground Instantaneous Overcurrent 9 5E39 ...Repeated for Ground Instantaneous Overcurrent 10 5E4A ...Repeated for Ground Instantaneous Overcurrent 11 B-38 L90 Line Current Differential System GE Multilin...
Page 691 Setting Group 1 Name F203 (none) 5F94 Setting Group 2 Name F203 (none) 5F9C Setting Group 3 Name F203 (none) 5FA4 Setting Group 4 Name F203 (none) 5FAC Setting Group 5 Name F203 (none) GE Multilin L90 Line Current Differential System B-39...
Page 692 Negative Sequence Instantaneous Overcurrent 1 Block 0 to 4294967295 F300 63C7 Negative Sequence Instantaneous Overcurrent 1 Target 0 to 2 F109 0 (Self-reset) 63C8 Negative Sequence Instantaneous Overcurrent 1 Events 0 to 1 F102 0 (Disabled) B-40 L90 Line Current Differential System GE Multilin...
Page 693 Sensitive Directional Power 1 RCA 0 to 359 degrees F001 6683 Sensitive Directional Power 1 Calibration 0 to 0.95 degrees 0.05 F001 6684 Sensitive Directional Power 1 STG1 SMIN -1.2 to 1.2 0.001 F002 GE Multilin L90 Line Current Differential System B-41...
Page 694 Start Timer Zone 2 Phase Input 1 0 to 429496729 F300 6796 Start Timer Zone 2 Phase Input 2 0 to 429496729 F300 6798 Start Timer Zone 2 Ground Input 1 0 to 429496729 F300 B-42 L90 Line Current Differential System GE Multilin...
Page 695 Hybrid POTT 1P Event 0 to 1 F102 0 (Disabled) 68737 Hybrid POTT 1P Echo Condition 0 to 4294967295 F300 6839 Hybrid POTT 1P Weak Infeed 0 to 2 F199 1 (Enabled) GE Multilin L90 Line Current Differential System B-43...
Page 696 0.01 F001 688C Autoreclose Breaker Sequence 0 to 4 F082 3 (1 - 2) 688D Autoreclose Transfer Time 0 to 655.35 0.01 F001 688E Autoreclose Event 0 to 1 F102 0 (Disabled) B-44 L90 Line Current Differential System GE Multilin...
Page 697 0 to 1 F186 0 (Phase to Ground) 700A Reserved (6 items) 0 to 1 F001 7013 ...Repeated for Phase Undervoltage 2 7015 ...Repeated for Phase Undervoltage 2 7017 ...Repeated for Phase Undervoltage 2 GE Multilin L90 Line Current Differential System B-45...
Page 698 0 to 1 F120 0 (Mho) 713B Ground Distance Zone 1 Z0 Z1 Magnitude 0 to 10 0.01 F001 713C Ground Distance Zone 1 Z0 Z1 Angle -90 to 90 degrees F002 B-46 L90 Line Current Differential System GE Multilin...
Page 699 0 to 2 F230 0 (Voltage) 7233 Neutral Directional Overcurrent 1 Forward ECA -90 to 90 ° Lag F002 7234 Neutral Directional Overcurrent 1 Forward Limit Angle 40 to 90 degrees F001 GE Multilin L90 Line Current Differential System B-47...
Page 700 Thermal Protection 1 K Factor 1 to 1.2 0.05 F001 778C Thermal Protection 1 Trip Time Constant 0 to 1000 min. F001 778D Thermal Protection 1 Reset Time Constant 0 to 1000 min. F001 B-48 L90 Line Current Differential System GE Multilin...
Page 701 0 to 700 0.01 F003 50000 7893 PMU 1 Phase A Voltage Test Angle -180 to 180 ° 0.05 F002 7894 PMU 1 Phase B Voltage Test Magnitude 0 to 700 0.01 F003 50000 GE Multilin L90 Line Current Differential System B-49...
Page 702 PMU 1 Current Trigger Block (3 items) 0 to 4294967295 F300 798A PMU 1 Current Trigger Target 0 to 2 F109 0 (Self-reset) 798B PMU 1 Current Trigger Events 0 to 1 F102 0 (Disabled) B-50 L90 Line Current Differential System GE Multilin...
Page 703 ...Repeated for User Programmable Pushbutton 9 7D10 ...Repeated for User Programmable Pushbutton 10 7D40 ...Repeated for User Programmable Pushbutton 11 7D70 ...Repeated for User Programmable Pushbutton 12 7DA0 ...Repeated for User Programmable Pushbutton 13 GE Multilin L90 Line Current Differential System B-51...
Page 704 81C6 Reserved Register T5 0 to 4294967295 F003 81C8 Reserved Register T6 0 to 4294967295 F003 81CA Reserved Register T7 0 to 4294967295 F003 81CC Reserved Register T8 0 to 4294967295 F003 B-52 L90 Line Current Differential System GE Multilin...
Page 705 F102 0 (Disabled) 8A13 Digital Element 1 Pickup LED 0 to 1 F102 1 (Enabled) 8A14 Reserved (2 items) F001 8A16 ...Repeated for Digital Element 2 8A2C ...Repeated for Digital Element 3 GE Multilin L90 Line Current Differential System B-53...
Page 706 F300 8EF5 Trip Bus 1 Latching 0 to 1 F102 0 (Disabled) 8EF6 Trip Bus 1 Reset 0 to 65535 F300 8EF8 Trip Bus 1 Target 0 to 2 F109 0 (Self-reset) B-54 L90 Line Current Differential System GE Multilin...
Page 707 F001 920C Fault REM1-TAP Z1 Magnitude 0.01 to 250 ohms 0.01 F001 920D Fault REM1-TAP Z1 Angle 25 to 90 degrees F001 920E Fault REM1-TAP Length 0 to 2000 F001 1000 GE Multilin L90 Line Current Differential System B-55...
Page 708 ...Repeated for IEC61850 GOOSE UInteger 12 98C4 ...Repeated for IEC61850 GOOSE UInteger 13 98C7 ...Repeated for IEC61850 GOOSE UInteger 14 98CA ...Repeated for IEC61850 GOOSE UInteger 15 98CD ...Repeated for IEC61850 GOOSE UInteger 16 B-56 L90 Line Current Differential System GE Multilin...
Page 709 0 (Restore) A292 Selector 1 Target 0 to 2 F109 0 (Self-reset) A293 Selector 1 Events 0 to 1 F102 0 (Disabled) A294 Reserved (10 items) F001 A29E ...Repeated for Selector 2 GE Multilin L90 Line Current Differential System B-57...
Page 710 POTT 1P Permissive Echo 0 to 2 F199 0 (Disabled) A802 POTT 1P Rx Pickup Delay 0 to 65.535 0.001 F001 A803 POTT 1P Trans Block Pickup Delay 0 to 65.535 0.001 F001 B-58 L90 Line Current Differential System GE Multilin...
Page 711 0.1 to 15 Hz/s 0.01 F001 A90D Frequency Rate of Change 1 OV Supervision 0.1 to 3 0.001 F001 A90E Frequency Rate of Change 1 Reserved (3 items) 0 to 1 F001 GE Multilin L90 Line Current Differential System B-59...
Page 712 ...Repeated for IEC 61850 GOOSE analog input 29 AACB ...Repeated for IEC 61850 GOOSE analog input 30 AAD2 ...Repeated for IEC 61850 GOOSE analog input 31 AAD9 ...Repeated for IEC 61850 GOOSE analog input 32 B-60 L90 Line Current Differential System GE Multilin...
Page 713 ...Repeated for IEC 61850 GGIO4 analog input 9 AF4F ...Repeated for IEC 61850 GGIO4 analog input 10 AF56 ...Repeated for IEC 61850 GGIO4 analog input 11 AF5D ...Repeated for IEC 61850 GGIO4 analog input 12 GE Multilin L90 Line Current Differential System B-61...
Page 714 IEC 61850 MMXU PPV.phsCA Deadband 1 0.001 to 100 0.001 F003 10000 B0D0 IEC 61850 MMXU PhV.phsADeadband 1 0.001 to 100 0.001 F003 10000 B0D2 IEC 61850 MMXU PhV.phsB Deadband 1 0.001 to 100 0.001 F003 10000 B-62 L90 Line Current Differential System GE Multilin...
Page 715 ...Repeated for Received Analog 25 B242 ...Repeated for Received Analog 26 B244 ...Repeated for Received Analog 27 B246 ...Repeated for Received Analog 28 B248 ...Repeated for Received Analog 29 B24A ...Repeated for Received Analog 30 GE Multilin L90 Line Current Differential System B-63...
Page 716 Configurable GOOSE dataset items for transmission 0 to 542 F616 0 (None) (64 items) B60B ...Repeated for Module 2 B676 ...Repeated for Module 3 B6E1 ...Repeated for Module 4 B74C ...Repeated for Module 5 B-64 L90 Line Current Differential System GE Multilin...
Page 717 ...Repeated for Contact Input 25 BBC8 ...Repeated for Contact Input 26 BBD0 ...Repeated for Contact Input 27 BBD8 ...Repeated for Contact Input 28 BBE0 ...Repeated for Contact Input 29 BBE8 ...Repeated for Contact Input 30 GE Multilin L90 Line Current Differential System B-65...
Page 718 ...Repeated for Contact Input 79 BD78 ...Repeated for Contact Input 80 BD80 ...Repeated for Contact Input 81 BD88 ...Repeated for Contact Input 82 BD90 ...Repeated for Contact Input 83 BD98 ...Repeated for Contact Input 84 B-66 L90 Line Current Differential System GE Multilin...
Page 719 ...Repeated for Virtual Input 30 BF98 ...Repeated for Virtual Input 31 BFA4 ...Repeated for Virtual Input 32 BFB0 ...Repeated for Virtual Input 33 BFBC ...Repeated for Virtual Input 34 BFC8 ...Repeated for Virtual Input 35 GE Multilin L90 Line Current Differential System B-67...
Page 720 ...Repeated for Virtual Output 17 C1B8 ...Repeated for Virtual Output 18 C1C0 ...Repeated for Virtual Output 19 C1C8 ...Repeated for Virtual Output 20 C1D0 ...Repeated for Virtual Output 21 C1D8 ...Repeated for Virtual Output 22 B-68 L90 Line Current Differential System GE Multilin...
Page 721 ...Repeated for Virtual Output 71 C368 ...Repeated for Virtual Output 72 C370 ...Repeated for Virtual Output 73 C378 ...Repeated for Virtual Output 74 C380 ...Repeated for Virtual Output 75 C388 ...Repeated for Virtual Output 76 GE Multilin L90 Line Current Differential System B-69...
Page 722 Direct Output x 1 Operand (8 items) 0 to 4294967295 F300 C520 Direct Output x 2 Operand (8 items) 0 to 4294967295 F300 Reset (Read/Write Setting) C750 FlexLogic operand which initiates a reset 0 to 4294967295 F300 B-70 L90 Line Current Differential System GE Multilin...
Page 723 ...Repeated for Device 25 CE9D ...Repeated for Device 26 CEC2 ...Repeated for Device 27 CEE7 ...Repeated for Device 28 CF0C ...Repeated for Device 29 CF31 ...Repeated for Device 30 CF56 ...Repeated for Device 31 GE Multilin L90 Line Current Differential System B-71...
Page 724 ...Repeated for Remote Input 43 D14E ...Repeated for Remote Input 44 D158 ...Repeated for Remote Input 45 D162 ...Repeated for Remote Input 46 D16C ...Repeated for Remote Input 47 D176 ...Repeated for Remote Input 48 B-72 L90 Line Current Differential System GE Multilin...
Page 725 ...Repeated for Remote Output 32 Remote Output UserSt Pairs (Read/Write Setting) (32 modules) D2A0 Remote Output UserSt 1 Operand 0 to 4294967295 F300 D2A1 Remote Output UserSt 1 Events 0 to 1 F102 0 (Disabled) GE Multilin L90 Line Current Differential System B-73...
Page 726 IEC 61850 GGIO2.CF.SPCSO18.ctlModel Value 0 to 2 F001 D332 IEC 61850 GGIO2.CF.SPCSO19.ctlModel Value 0 to 2 F001 D333 IEC 61850 GGIO2.CF.SPCSO20.ctlModel Value 0 to 2 F001 D334 IEC 61850 GGIO2.CF.SPCSO21.ctlModel Value 0 to 2 F001 B-74 L90 Line Current Differential System GE Multilin...
Page 727 ...Repeated for Remote Device 4 D390 ...Repeated for Remote Device 5 D394 ...Repeated for Remote Device 6 D398 ...Repeated for Remote Device 7 D39C ...Repeated for Remote Device 8 D3A0 ...Repeated for Remote Device 9 GE Multilin L90 Line Current Differential System B-75...
Page 728 Latching Output 1 Type 0 to 1 F090 0 (Operate- dominant) DC9E Reserved F001 DC9F ...Repeated for Contact Output 2 DCAE ...Repeated for Contact Output 3 DCBD ...Repeated for Contact Output 4 B-76 L90 Line Current Differential System GE Multilin...
Page 729 ...Repeated for Contact Output 53 DFAB ...Repeated for Contact Output 54 DFBA ...Repeated for Contact Output 55 DFC9 ...Repeated for Contact Output 56 DFD8 ...Repeated for Contact Output 57 DFE7 ...Repeated for Contact Output 58 GE Multilin L90 Line Current Differential System B-77...
Page 730 E24C PMU Aggregator 1 Port 1 to 3 F001 E24D PMU Aggregator 1 Reserved (3 items) 1 to 3 F001 E250 ...Repeated for PMU Aggregator 2 E280 ...Repeated for PMU Aggregator 3 B-78 L90 Line Current Differential System GE Multilin...
Page 731 PMU 1 Frequency Trigger Dropout Time 0 to 600 0.01 F001 ECD1 PMU 1 Frequency Trigger Block (3 items) 0 to 4294967295 F300 ECD7 PMU 1 Frequency Trigger Target 0 to 2 F109 0 (Self-reset) GE Multilin L90 Line Current Differential System B-79...
Page 732: Data Formats
12.35 kA. F081 F013 ENUMERATION: AUTORECLOSE 1P/3P BKR FAIL OPTION POWER_FACTOR (SIGNED 16 BIT INTEGER) 0 = Continue, 1 = Lockout Positive values indicate lagging power factor; negative values indicate leading. B-80 L90 Line Current Differential System GE Multilin...
Page 733 ENUMERATION: CONTACT OUTPUT LED CONTROL ENUMERATION: DISABLED/ENABLED 0 = Trip, 1 = Alarm, 2 = None 0 = Disabled; 1 = Enabled F111 ENUMERATION: UNDERVOLTAGE CURVE SHAPES 0 = Definite Time, 1 = Inverse Time GE Multilin L90 Line Current Differential System B-81...
Page 734 ENUMERATION: DISTANCE SHAPE 0 = Mho, 1 = Quad F122 ENUMERATION: ELEMENT INPUT SIGNAL TYPE 0 = Phasor, 1 = RMS F123 ENUMERATION: CT SECONDARY 0 = 1 A, 1 = 5 A B-82 L90 Line Current Differential System GE Multilin...
Page 735 Ground Instantaneous Overcurrent 4 SRC2 VT Fuse Failure Ground Instantaneous Overcurrent 5 SRC3 VT Fuse Failure Ground Instantaneous Overcurrent 6 SRC4 VT Fuse Failure Ground Instantaneous Overcurrent 7 SRC5 VT Fuse Failure GE Multilin L90 Line Current Differential System B-83...
Page 736 Control pushbutton 6 Digital Element 16 Control pushbutton 7 Digital Element 17 FlexElement 1 Digital Element 18 FlexElement 2 Digital Element 19 FlexElement 3 Digital Element 20 FlexElement 4 Digital Element 21 B-84 L90 Line Current Differential System GE Multilin...
Page 737 User-Programmable Pushbutton 14 RTD Input 10 User-Programmable Pushbutton 15 RTD Input 11 User-Programmable Pushbutton 16 RTD Input 12 Disconnect switch 1 RTD Input 13 Disconnect switch 2 RTD Input 14 Disconnect switch 3 GE Multilin L90 Line Current Differential System B-85...
Page 738 3 = Current 4.6 A, 4 = Current 2 A, 5 = Notched 4.6 A, 6 = Notched 2 A F130 ENUMERATION: SIMULATION MODE 0 = Off. 1 = Pre-Fault, 2 = Fault, 3 = Post-Fault B-86 L90 Line Current Differential System GE Multilin...
Page 739 Settings Save Error bitmask type bitmask type bitmask type bitmask type SRAM Data Error null Program Memory Watchdog Error Low On Memory Prototype Firmware Module Failure 01 Module Failure 02 Module Failure 03 GE Multilin L90 Line Current Differential System B-87...
Page 740 ENUMERATION: LINE LENGTH UNITS None Dy11 0 = km, 1 = miles Yd11 F154 ENUMERATION: DISTANCE DIRECTION 0 = Forward, 1 = Reverse, 2 = Non-Directional B-88 L90 Line Current Differential System GE Multilin...
Page 741 0 to 20 mA 4 to 20 mA F158 ENUMERATION: SCHEME CALIBRATION TEST 0 = Normal, 1 = Symmetry 1, 2 = Symmetry 2, 3 = Delay 1 4 = Delay 2 GE Multilin L90 Line Current Differential System B-89...
Page 742 0 = A, 1 = B, 2 = C, 3 = G F180 ENUMERATION: PHASE/GROUND 0 = PHASE, 1 = GROUND F186 ENUMERATION: MEASUREMENT MODE 0 = Phase to Ground, 1 = Phase to Phase B-90 L90 Line Current Differential System GE Multilin...
Page 743 ENUMERATION: NEUTRAL DIRECTIONAL OVERCURRENT value priority OPERATING CURRENT Disabled 0 = Calculated 3I0, 1 = Measured IG Normal High Priority F199 ENUMERATION: DISABLED/ENABLED/CUSTOM 0 = Disabled, 1 = Enabled, 2 = Custom GE Multilin L90 Line Current Differential System B-91...
Page 744 0 = Calculated V0, 1 = Measured VX MMXU2.MX.TotVAr.mag.f MMXU2.MX.TotVA.mag.f MMXU2.MX.TotPF.mag.f F232 MMXU2.MX.Hz.mag.f ENUMERATION: CONFIGURABLE GOOSE DATASET ITEMS FOR TRANSMISSION MMXU2.MX.PPV.phsAB.cVal.mag.f MMXU2.MX.PPV.phsAB.cVal.ang.f value GOOSE dataset item MMXU2.MX.PPV.phsBC.cVal.mag.f None MMXU2.MX.PPV.phsBC.cVal.ang.f GGIO1.ST.Ind1.q MMXU2.MX.PPV.phsCA.cVal.mag.f GGIO1.ST.Ind1.stVal MMXU2.MX.PPV.phsCA.cVal.ang.f GGIO1.ST.Ind2.q MMXU2.MX.PhV.phsA.cVal.mag.f GGIO1.ST.Ind2.stVal MMXU2.MX.PhV.phsA.cVal.ang.f B-92 L90 Line Current Differential System GE Multilin...
Page 745 MMXU3.MX.PhV.phsB.cVal.mag.f MMXU4.MX.VAr.phsB.cVal.mag.f MMXU3.MX.PhV.phsB.cVal.ang.f MMXU4.MX.VAr.phsC.cVal.mag.f MMXU3.MX.PhV.phsC.cVal.mag.f MMXU4.MX.VA.phsA.cVal.mag.f MMXU3.MX.PhV.phsC.cVal.ang.f MMXU4.MX.VA.phsB.cVal.mag.f MMXU3.MX.A.phsA.cVal.mag.f MMXU4.MX.VA.phsC.cVal.mag.f MMXU3.MX.A.phsA.cVal.ang.f MMXU4.MX.PF.phsA.cVal.mag.f MMXU3.MX.A.phsB.cVal.mag.f MMXU4.MX.PF.phsB.cVal.mag.f MMXU3.MX.A.phsB.cVal.ang.f MMXU4.MX.PF.phsC.cVal.mag.f MMXU3.MX.A.phsC.cVal.mag.f MMXU5.MX.TotW.mag.f MMXU3.MX.A.phsC.cVal.ang.f MMXU5.MX.TotVAr.mag.f MMXU3.MX.A.neut.cVal.mag.f MMXU5.MX.TotVA.mag.f MMXU3.MX.A.neut.cVal.ang.f MMXU5.MX.TotPF.mag.f MMXU3.MX.W.phsA.cVal.mag.f MMXU5.MX.Hz.mag.f MMXU3.MX.W.phsB.cVal.mag.f MMXU5.MX.PPV.phsAB.cVal.mag.f MMXU3.MX.W.phsC.cVal.mag.f MMXU5.MX.PPV.phsAB.cVal.ang.f MMXU3.MX.VAr.phsA.cVal.mag.f MMXU5.MX.PPV.phsBC.cVal.mag.f GE Multilin L90 Line Current Differential System B-93...
Page 746 MMXU6.MX.PPV.phsBC.cVal.ang.f GGIO4.MX.AnIn25.mag.f MMXU6.MX.PPV.phsCA.cVal.mag.f GGIO4.MX.AnIn26.mag.f MMXU6.MX.PPV.phsCA.cVal.ang.f GGIO4.MX.AnIn27.mag.f MMXU6.MX.PhV.phsA.cVal.mag.f GGIO4.MX.AnIn28.mag.f MMXU6.MX.PhV.phsA.cVal.ang.f GGIO4.MX.AnIn29.mag.f MMXU6.MX.PhV.phsB.cVal.mag.f GGIO4.MX.AnIn30.mag.f MMXU6.MX.PhV.phsB.cVal.ang.f GGIO4.MX.AnIn31.mag.f MMXU6.MX.PhV.phsC.cVal.mag.f GGIO4.MX.AnIn32.mag.f MMXU6.MX.PhV.phsC.cVal.ang.f GGIO5.ST.UIntIn1.q MMXU6.MX.A.phsA.cVal.mag.f GGIO5.ST.UIntIn1.stVal MMXU6.MX.A.phsA.cVal.ang.f GGIO5.ST.UIntIn2.q MMXU6.MX.A.phsB.cVal.mag.f GGIO5.ST.UIntIn2.stVal MMXU6.MX.A.phsB.cVal.ang.f GGIO5.ST.UIntIn3.q MMXU6.MX.A.phsC.cVal.mag.f GGIO5.ST.UIntIn3.stVal MMXU6.MX.A.phsC.cVal.ang.f GGIO5.ST.UIntIn4.q MMXU6.MX.A.neut.cVal.mag.f GGIO5.ST.UIntIn4.stVal B-94 L90 Line Current Differential System GE Multilin...
Page 747 GGIO1.ST.Ind64.stVal GGIO3.ST.UIntIn8.stVal GGIO3.MX.AnIn1.mag.f GGIO3.ST.UIntIn9.q GGIO3.MX.AnIn2.mag.f GGIO3.ST.UIntIn9.stVal GGIO3.MX.AnIn3.mag.f GGIO3.ST.UIntIn10.q GGIO3.MX.AnIn4.mag.f GGIO3.ST.UIntIn10.stVal GGIO3.MX.AnIn5.mag.f GGIO3.ST.UIntIn11.q GGIO3.MX.AnIn6.mag.f GGIO3.ST.UIntIn11.stVal GGIO3.MX.AnIn7.mag.f GGIO3.ST.UIntIn12.q GGIO3.MX.AnIn8.mag.f GGIO3.ST.UIntIn12.stVal GGIO3.MX.AnIn9.mag.f GGIO3.ST.UIntIn13.q GGIO3.MX.AnIn10.mag.f GGIO3.ST.UIntIn13.stVal GGIO3.MX.AnIn11.mag.f GGIO3.ST.UIntIn14.q GGIO3.MX.AnIn12.mag.f GGIO3.ST.UIntIn14.stVal GGIO3.MX.AnIn13.mag.f GGIO3.ST.UIntIn15.q GGIO3.MX.AnIn14.mag.f GGIO3.ST.UIntIn15.stVal GGIO3.MX.AnIn15.mag.f GGIO3.ST.UIntIn16.q GE Multilin L90 Line Current Differential System B-95...
Page 748 ENUMERATION: PROCESS CARD DSP CONFIGURATION December value instance F238 ENUMERATION: REAL TIME CLOCK DAY value Sunday Monday Tuesday Wednesday Thursday Friday Saturday F260 ENUMERATION: DATA LOGGER MODE 0 = Continuous, 1 = Trigger B-96 L90 Line Current Differential System GE Multilin...
Page 749 IDs. The operate bit for element ID [42] AND (2 to 16 inputs) X is bit [X mod 16] in register [X/16]. [44] NOR (2 to 16 inputs) GE Multilin L90 Line Current Differential System B-97...
Page 750 F517 ENUMERATION: ELEMENT DIRECTION OPERATION F509 BITFIELD: SIMPLE ELEMENT STATE 0 = Over, 1 = Under 0 = Operate F518 ENUMERATION: FLEXELEMENT UNITS 0 = Milliseconds, 1 = Seconds, 2 = Minutes B-98 L90 Line Current Differential System GE Multilin...
Page 751 3 = Symm-7-Point, 4 = Class M, 5 = Class P F542 ENUMERATION: PMU TRIGGERING MODE F525 0 = Automatic Overwrite, 1 = Protected ENUMERATION: DNP OBJECT 32 DEFAULT VARIATION bitmask default variation F543 ENUMERATION: PMU PHASORS value phasor value phasor GE Multilin L90 Line Current Differential System B-99...
Page 752 ENUMERATION: OPEN POLE DETECTION FUNCTION Enumeration Open Pole Detection F561 ENUMERATION: 87L INRUSH INHIBIT MODE I AND V AND CBaux I AND V only Enumeration Inrush inhibit mode Disabled Per phase Two out of three Average B-100 L90 Line Current Differential System GE Multilin...
Page 753 PDIF2.ST.Str.general PIOC14.ST.Op.general PDIF2.ST.Op.general PIOC15.ST.Str.general PDIF3.ST.Str.general PIOC15.ST.Op.general PDIF3.ST.Op.general PIOC16.ST.Str.general PDIF4.ST.Str.general PIOC16.ST.Op.general PDIF4.ST.Op.general PIOC17.ST.Str.general PDIS1.ST.Str.general PIOC17.ST.Op.general PDIS1.ST.Op.general PIOC18.ST.Str.general PDIS2.ST.Str.general PIOC18.ST.Op.general PDIS2.ST.Op.general PIOC19.ST.Str.general PDIS3.ST.Str.general PIOC19.ST.Op.general PDIS3.ST.Op.general PIOC20.ST.Str.general PDIS4.ST.Str.general PIOC20.ST.Op.general PDIS4.ST.Op.general PIOC21.ST.Str.general PDIS5.ST.Str.general PIOC21.ST.Op.general PDIS5.ST.Op.general PIOC22.ST.Str.general GE Multilin L90 Line Current Differential System B-101...
Page 754 PIOC41.ST.Str.general PIOC67.ST.Op.general PIOC41.ST.Op.general PIOC68.ST.Str.general PIOC42.ST.Str.general PIOC68.ST.Op.general PIOC42.ST.Op.general PIOC69.ST.Str.general PIOC43.ST.Str.general PIOC69.ST.Op.general PIOC43.ST.Op.general PIOC70.ST.Str.general PIOC44.ST.Str.general PIOC70.ST.Op.general PIOC44.ST.Op.general PIOC71.ST.Str.general PIOC45.ST.Str.general PIOC71.ST.Op.general PIOC45.ST.Op.general PIOC72.ST.Str.general PIOC46.ST.Str.general PIOC72.ST.Op.general PIOC46.ST.Op.general PTOC1.ST.Str.general PIOC47.ST.Str.general PTOC1.ST.Op.general PIOC47.ST.Op.general PTOC2.ST.Str.general PIOC48.ST.Str.general PTOC2.ST.Op.general PIOC48.ST.Op.general PTOC3.ST.Str.general B-102 L90 Line Current Differential System GE Multilin...
Page 755 PTOC22.ST.Str.general PTUV8.ST.Op.general PTOC22.ST.Op.general PTUV9.ST.Str.general PTOC23.ST.Str.general PTUV9.ST.Op.general PTOC23.ST.Op.general PTUV10.ST.Str.general PTOC24.ST.Str.general PTUV10.ST.Op.general PTOC24.ST.Op.general PTUV11.ST.Str.general PTOV1.ST.Str.general PTUV11.ST.Op.general PTOV1.ST.Op.general PTUV12.ST.Str.general PTOV2.ST.Str.general PTUV12.ST.Op.general PTOV2.ST.Op.general PTUV13.ST.Str.general PTOV3.ST.Str.general PTUV13.ST.Op.general PTOV3.ST.Op.general RBRF1.ST.OpEx.general PTOV4.ST.Str.general RBRF1.ST.OpIn.general PTOV4.ST.Op.general RBRF2.ST.OpEx.general PTOV5.ST.Str.general RBRF2.ST.OpIn.general PTOV5.ST.Op.general RBRF3.ST.OpEx.general GE Multilin L90 Line Current Differential System B-103...
Page 756 RBRF22.ST.OpEx.general CSWI14.ST.Pos.stVal RBRF22.ST.OpIn.general CSWI15.ST.Loc.stVal RBRF23.ST.OpEx.general CSWI15.ST.Pos.stVal RBRF23.ST.OpIn.general CSWI16.ST.Loc.stVal RBRF24.ST.OpEx.general CSWI16.ST.Pos.stVal RBRF24.ST.OpIn.general CSWI17.ST.Loc.stVal RFLO1.MX.FltDiskm.mag.f CSWI17.ST.Pos.stVal RFLO2.MX.FltDiskm.mag.f CSWI18.ST.Loc.stVal RFLO3.MX.FltDiskm.mag.f CSWI18.ST.Pos.stVal RFLO4.MX.FltDiskm.mag.f CSWI19.ST.Loc.stVal RFLO5.MX.FltDiskm.mag.f CSWI19.ST.Pos.stVal RPSB1.ST.Str.general CSWI20.ST.Loc.stVal RPSB1.ST.Op.general CSWI20.ST.Pos.stVal RPSB1.ST.BlkZn.stVal CSWI21.ST.Loc.stVal RREC1.ST.Op.general CSWI21.ST.Pos.stVal RREC1.ST.AutoRecSt.stVal CSWI22.ST.Loc.stVal B-104 L90 Line Current Differential System GE Multilin...
Page 757 GGIO1.ST.Ind21.stVal GGIO1.ST.Ind74.stVal GGIO1.ST.Ind22.stVal GGIO1.ST.Ind75.stVal GGIO1.ST.Ind23.stVal GGIO1.ST.Ind76.stVal GGIO1.ST.Ind24.stVal GGIO1.ST.Ind77.stVal GGIO1.ST.Ind25.stVal GGIO1.ST.Ind78.stVal GGIO1.ST.Ind26.stVal GGIO1.ST.Ind79.stVal GGIO1.ST.Ind27.stVal GGIO1.ST.Ind80.stVal GGIO1.ST.Ind28.stVal GGIO1.ST.Ind81.stVal GGIO1.ST.Ind29.stVal GGIO1.ST.Ind82.stVal GGIO1.ST.Ind30.stVal GGIO1.ST.Ind83.stVal GGIO1.ST.Ind31.stVal GGIO1.ST.Ind84.stVal GGIO1.ST.Ind32.stVal GGIO1.ST.Ind85.stVal GGIO1.ST.Ind33.stVal GGIO1.ST.Ind86.stVal GGIO1.ST.Ind34.stVal GGIO1.ST.Ind87.stVal GGIO1.ST.Ind35.stVal GGIO1.ST.Ind88.stVal GGIO1.ST.Ind36.stVal GGIO1.ST.Ind89.stVal GE Multilin L90 Line Current Differential System B-105...
Page 758 GGIO1.ST.Ind127.stVal MMXU2.MX.PhV.phsB.cVal.ang.f GGIO1.ST.Ind128.stVal MMXU2.MX.PhV.phsC.cVal.mag.f MMXU1.MX.TotW.mag.f MMXU2.MX.PhV.phsC.cVal.ang.f MMXU1.MX.TotVAr.mag.f MMXU2.MX.A.phsA.cVal.mag.f MMXU1.MX.TotVA.mag.f MMXU2.MX.A.phsA.cVal.ang.f MMXU1.MX.TotPF.mag.f MMXU2.MX.A.phsB.cVal.mag.f MMXU1.MX.Hz.mag.f MMXU2.MX.A.phsB.cVal.ang.f MMXU1.MX.PPV.phsAB.cVal.mag.f MMXU2.MX.A.phsC.cVal.mag.f MMXU1.MX.PPV.phsAB.cVal.ang.f MMXU2.MX.A.phsC.cVal.ang.f MMXU1.MX.PPV.phsBC.cVal.mag.f MMXU2.MX.A.neut.cVal.mag.f MMXU1.MX.PPV.phsBC.cVal.ang.f MMXU2.MX.A.neut.cVal.ang.f MMXU1.MX.PPV.phsCA.cVal.mag.f MMXU2.MX.W.phsA.cVal.mag.f MMXU1.MX.PPV.phsCA.cVal.ang.f MMXU2.MX.W.phsB.cVal.mag.f MMXU1.MX.PhV.phsA.cVal.mag.f MMXU2.MX.W.phsC.cVal.mag.f MMXU1.MX.PhV.phsA.cVal.ang.f MMXU2.MX.VAr.phsA.cVal.mag.f MMXU1.MX.PhV.phsB.cVal.mag.f MMXU2.MX.VAr.phsB.cVal.mag.f B-106 L90 Line Current Differential System GE Multilin...
Page 759 MMXU3.MX.VAr.phsC.cVal.mag.f MMXU5.MX.PPV.phsCA.cVal.mag.f MMXU3.MX.VA.phsA.cVal.mag.f MMXU5.MX.PPV.phsCA.cVal.ang.f MMXU3.MX.VA.phsB.cVal.mag.f MMXU5.MX.PhV.phsA.cVal.mag.f MMXU3.MX.VA.phsC.cVal.mag.f MMXU5.MX.PhV.phsA.cVal.ang.f MMXU3.MX.PF.phsA.cVal.mag.f MMXU5.MX.PhV.phsB.cVal.mag.f MMXU3.MX.PF.phsB.cVal.mag.f MMXU5.MX.PhV.phsB.cVal.ang.f MMXU3.MX.PF.phsC.cVal.mag.f MMXU5.MX.PhV.phsC.cVal.mag.f MMXU4.MX.TotW.mag.f MMXU5.MX.PhV.phsC.cVal.ang.f MMXU4.MX.TotVAr.mag.f MMXU5.MX.A.phsA.cVal.mag.f MMXU4.MX.TotVA.mag.f MMXU5.MX.A.phsA.cVal.ang.f MMXU4.MX.TotPF.mag.f MMXU5.MX.A.phsB.cVal.mag.f MMXU4.MX.Hz.mag.f MMXU5.MX.A.phsB.cVal.ang.f MMXU4.MX.PPV.phsAB.cVal.mag.f MMXU5.MX.A.phsC.cVal.mag.f MMXU4.MX.PPV.phsAB.cVal.ang.f MMXU5.MX.A.phsC.cVal.ang.f MMXU4.MX.PPV.phsBC.cVal.mag.f MMXU5.MX.A.neut.cVal.mag.f MMXU4.MX.PPV.phsBC.cVal.ang.f MMXU5.MX.A.neut.cVal.ang.f GE Multilin L90 Line Current Differential System B-107...
Page 760 MMXU6.MX.W.phsA.cVal.mag.f XSWI5.ST.Pos.stVal MMXU6.MX.W.phsB.cVal.mag.f XSWI6.ST.Loc.stVal MMXU6.MX.W.phsC.cVal.mag.f XSWI6.ST.Pos.stVal MMXU6.MX.VAr.phsA.cVal.mag.f XSWI7.ST.Loc.stVal MMXU6.MX.VAr.phsB.cVal.mag.f XSWI7.ST.Pos.stVal MMXU6.MX.VAr.phsC.cVal.mag.f XSWI8.ST.Loc.stVal MMXU6.MX.VA.phsA.cVal.mag.f XSWI8.ST.Pos.stVal MMXU6.MX.VA.phsB.cVal.mag.f XSWI9.ST.Loc.stVal MMXU6.MX.VA.phsC.cVal.mag.f XSWI9.ST.Pos.stVal MMXU6.MX.PF.phsA.cVal.mag.f XSWI10.ST.Loc.stVal MMXU6.MX.PF.phsB.cVal.mag.f XSWI10.ST.Pos.stVal MMXU6.MX.PF.phsC.cVal.mag.f XSWI11.ST.Loc.stVal GGIO4.MX.AnIn1.mag.f XSWI11.ST.Pos.stVal GGIO4.MX.AnIn2.mag.f XSWI12.ST.Loc.stVal GGIO4.MX.AnIn3.mag.f XSWI12.ST.Pos.stVal GGIO4.MX.AnIn4.mag.f XSWI13.ST.Loc.stVal B-108 L90 Line Current Differential System GE Multilin...
Page 761 GGIO1.ST.Ind26.q Enumeration GOOSE dataset items GGIO1.ST.Ind26.stVal None GGIO1.ST.Ind27.q GGIO1.ST.Ind1.q GGIO1.ST.Ind27.stVal GGIO1.ST.Ind1.stVal GGIO1.ST.Ind28.q GGIO1.ST.Ind2.q GGIO1.ST.Ind28.stVal GGIO1.ST.Ind2.stVal GGIO1.ST.Ind29.q GGIO1.ST.Ind3.q GGIO1.ST.Ind29.stVal GGIO1.ST.Ind3.stVal GGIO1.ST.Ind30.q GGIO1.ST.Ind4.q GGIO1.ST.Ind30.stVal GGIO1.ST.Ind4.stVal GGIO1.ST.Ind31.q GGIO1.ST.Ind5.q GGIO1.ST.Ind31.stVal GGIO1.ST.Ind5.stVal GGIO1.ST.Ind32.q GGIO1.ST.Ind6.q GGIO1.ST.Ind32.stVal GGIO1.ST.Ind6.stVal GGIO1.ST.Ind33.q GE Multilin L90 Line Current Differential System B-109...
Page 762 GGIO1.ST.Ind52.q GGIO1.ST.Ind78.stVal GGIO1.ST.Ind52.stVal GGIO1.ST.Ind79.q GGIO1.ST.Ind53.q GGIO1.ST.Ind79.stVal GGIO1.ST.Ind53.stVal GGIO1.ST.Ind80.q GGIO1.ST.Ind54.q GGIO1.ST.Ind80.stVal GGIO1.ST.Ind54.stVal GGIO1.ST.Ind81.q GGIO1.ST.Ind55.q GGIO1.ST.Ind81.stVal GGIO1.ST.Ind55.stVal GGIO1.ST.Ind82.q GGIO1.ST.Ind56.q GGIO1.ST.Ind82.stVal GGIO1.ST.Ind56.stVal GGIO1.ST.Ind83.q GGIO1.ST.Ind57.q GGIO1.ST.Ind83.stVal GGIO1.ST.Ind57.stVal GGIO1.ST.Ind84.q GGIO1.ST.Ind58.q GGIO1.ST.Ind84.stVal GGIO1.ST.Ind58.stVal GGIO1.ST.Ind85.q GGIO1.ST.Ind59.q GGIO1.ST.Ind85.stVal GGIO1.ST.Ind59.stVal GGIO1.ST.Ind86.q B-110 L90 Line Current Differential System GE Multilin...
Page 763 GGIO1.ST.Ind105.q MMXU1.MX.PPV.phsAB.cVal.mag.f GGIO1.ST.Ind105.stVal MMXU1.MX.PPV.phsAB.cVal.ang.f GGIO1.ST.Ind106.q MMXU1.MX.PPV.phsBC.cVal.mag.f GGIO1.ST.Ind106.stVal MMXU1.MX.PPV.phsBC.cVal.ang.f GGIO1.ST.Ind107.q MMXU1.MX.PPV.phsCA.cVal.mag.f GGIO1.ST.Ind107.stVal MMXU1.MX.PPV.phsCA.cVal.ang.f GGIO1.ST.Ind108.q MMXU1.MX.PhV.phsA.cVal.mag.f GGIO1.ST.Ind108.stVal MMXU1.MX.PhV.phsA.cVal.ang.f GGIO1.ST.Ind109.q MMXU1.MX.PhV.phsB.cVal.mag.f GGIO1.ST.Ind109.stVal MMXU1.MX.PhV.phsB.cVal.ang.f GGIO1.ST.Ind110.q MMXU1.MX.PhV.phsC.cVal.mag.f GGIO1.ST.Ind110.stVal MMXU1.MX.PhV.phsC.cVal.ang.f GGIO1.ST.Ind111.q MMXU1.MX.A.phsA.cVal.mag.f GGIO1.ST.Ind111.stVal MMXU1.MX.A.phsA.cVal.ang.f GGIO1.ST.Ind112.q MMXU1.MX.A.phsB.cVal.mag.f GGIO1.ST.Ind112.stVal MMXU1.MX.A.phsB.cVal.ang.f GE Multilin L90 Line Current Differential System B-111...
Page 764 MMXU2.MX.A.phsC.cVal.mag.f MMXU4.MX.TotW.mag.f MMXU2.MX.A.phsC.cVal.ang.f MMXU4.MX.TotVAr.mag.f MMXU2.MX.A.neut.cVal.mag.f MMXU4.MX.TotVA.mag.f MMXU2.MX.A.neut.cVal.ang.f MMXU4.MX.TotPF.mag.f MMXU2.MX.W.phsA.cVal.mag.f MMXU4.MX.Hz.mag.f MMXU2.MX.W.phsB.cVal.mag.f MMXU4.MX.PPV.phsAB.cVal.mag.f MMXU2.MX.W.phsC.cVal.mag.f MMXU4.MX.PPV.phsAB.cVal.ang.f MMXU2.MX.VAr.phsA.cVal.mag.f MMXU4.MX.PPV.phsBC.cVal.mag.f MMXU2.MX.VAr.phsB.cVal.mag.f MMXU4.MX.PPV.phsBC.cVal.ang.f MMXU2.MX.VAr.phsC.cVal.mag.f MMXU4.MX.PPV.phsCA.cVal.mag.f MMXU2.MX.VA.phsA.cVal.mag.f MMXU4.MX.PPV.phsCA.cVal.ang.f MMXU2.MX.VA.phsB.cVal.mag.f MMXU4.MX.PhV.phsA.cVal.mag.f MMXU2.MX.VA.phsC.cVal.mag.f MMXU4.MX.PhV.phsA.cVal.ang.f MMXU2.MX.PF.phsA.cVal.mag.f MMXU4.MX.PhV.phsB.cVal.mag.f MMXU2.MX.PF.phsB.cVal.mag.f MMXU4.MX.PhV.phsB.cVal.ang.f MMXU2.MX.PF.phsC.cVal.mag.f MMXU4.MX.PhV.phsC.cVal.mag.f B-112 L90 Line Current Differential System GE Multilin...
Page 765 MMXU5.MX.PhV.phsC.cVal.ang.f MMXU6.MX.VA.phsB.cVal.mag.f MMXU5.MX.A.phsA.cVal.mag.f MMXU6.MX.VA.phsC.cVal.mag.f MMXU5.MX.A.phsA.cVal.ang.f MMXU6.MX.PF.phsA.cVal.mag.f MMXU5.MX.A.phsB.cVal.mag.f MMXU6.MX.PF.phsB.cVal.mag.f MMXU5.MX.A.phsB.cVal.ang.f MMXU6.MX.PF.phsC.cVal.mag.f MMXU5.MX.A.phsC.cVal.mag.f GGIO4.MX.AnIn1.mag.f MMXU5.MX.A.phsC.cVal.ang.f GGIO4.MX.AnIn2.mag.f MMXU5.MX.A.neut.cVal.mag.f GGIO4.MX.AnIn3.mag.f MMXU5.MX.A.neut.cVal.ang.f GGIO4.MX.AnIn4.mag.f MMXU5.MX.W.phsA.cVal.mag.f GGIO4.MX.AnIn5.mag.f MMXU5.MX.W.phsB.cVal.mag.f GGIO4.MX.AnIn6.mag.f MMXU5.MX.W.phsC.cVal.mag.f GGIO4.MX.AnIn7.mag.f MMXU5.MX.VAr.phsA.cVal.mag.f GGIO4.MX.AnIn8.mag.f MMXU5.MX.VAr.phsB.cVal.mag.f GGIO4.MX.AnIn9.mag.f MMXU5.MX.VAr.phsC.cVal.mag.f GGIO4.MX.AnIn10.mag.f MMXU5.MX.VA.phsA.cVal.mag.f GGIO4.MX.AnIn11.mag.f GE Multilin L90 Line Current Differential System B-113...
Page 766 GGIO5.ST.UIntIn9.q PIOC5.ST.Op.general GGIO5.ST.UIntIn9.stVal PIOC6.ST.Str.general GGIO5.ST.UIntIn10.q PIOC6.ST.Op.general GGIO5.ST.UIntIn10.stVal PIOC7.ST.Str.general GGIO5.ST.UIntIn11.q PIOC7.ST.Op.general GGIO5.ST.UIntIn11.stVal PIOC8.ST.Str.general GGIO5.ST.UIntIn12.q PIOC8.ST.Op.general GGIO5.ST.UIntIn12.stVal PIOC9.ST.Str.general GGIO5.ST.UIntIn13.q PIOC9.ST.Op.general GGIO5.ST.UIntIn13.stVal PIOC10.ST.Str.general GGIO5.ST.UIntIn14.q PIOC10.ST.Op.general GGIO5.ST.UIntIn14.stVal PIOC11.ST.Str.general GGIO5.ST.UIntIn15.q PIOC11.ST.Op.general GGIO5.ST.UIntIn15.stVal PIOC12.ST.Str.general GGIO5.ST.UIntIn16.q PIOC12.ST.Op.general GGIO5.ST.UIntIn16.stVal PIOC13.ST.Str.general B-114 L90 Line Current Differential System GE Multilin...
Page 767 PIOC32.ST.Str.general PIOC58.ST.Op.general PIOC32.ST.Op.general PIOC59.ST.Str.general PIOC33.ST.Str.general PIOC59.ST.Op.general PIOC33.ST.Op.general PIOC60.ST.Str.general PIOC34.ST.Str.general PIOC60.ST.Op.general PIOC34.ST.Op.general PIOC61.ST.Str.general PIOC35.ST.Str.general PIOC61.ST.Op.general PIOC35.ST.Op.general PIOC62.ST.Str.general PIOC36.ST.Str.general PIOC62.ST.Op.general PIOC36.ST.Op.general PIOC63.ST.Str.general PIOC37.ST.Str.general PIOC63.ST.Op.general PIOC37.ST.Op.general PIOC64.ST.Str.general PIOC38.ST.Str.general PIOC64.ST.Op.general PIOC38.ST.Op.general PIOC65.ST.Str.general PIOC39.ST.Str.general PIOC65.ST.Op.general PIOC39.ST.Op.general PIOC66.ST.Str.general GE Multilin L90 Line Current Differential System B-115...
Page 768 PTOC13.ST.Str.general PTRC5.ST.Op.general PTOC13.ST.Op.general PTRC6.ST.Tr.general PTOC14.ST.Str.general PTRC6.ST.Op.general PTOC14.ST.Op.general PTUV1.ST.Str.general PTOC15.ST.Str.general PTUV1.ST.Op.general PTOC15.ST.Op.general PTUV2.ST.Str.general PTOC16.ST.Str.general PTUV2.ST.Op.general PTOC16.ST.Op.general PTUV3.ST.Str.general PTOC17.ST.Str.general PTUV3.ST.Op.general PTOC17.ST.Op.general PTUV4.ST.Str.general PTOC18.ST.Str.general PTUV4.ST.Op.general PTOC18.ST.Op.general PTUV5.ST.Str.general PTOC19.ST.Str.general PTUV5.ST.Op.general PTOC19.ST.Op.general PTUV6.ST.Str.general PTOC20.ST.Str.general PTUV6.ST.Op.general PTOC20.ST.Op.general PTUV7.ST.Str.general B-116 L90 Line Current Differential System GE Multilin...
Page 769 RBRF13.ST.OpEx.general CSWI5.ST.Pos.stVal RBRF13.ST.OpIn.general CSWI6.ST.Loc.stVal RBRF14.ST.OpEx.general CSWI6.ST.Pos.stVal RBRF14.ST.OpIn.general CSWI7.ST.Loc.stVal RBRF15.ST.OpEx.general CSWI7.ST.Pos.stVal RBRF15.ST.OpIn.general CSWI8.ST.Loc.stVal RBRF16.ST.OpEx.general CSWI8.ST.Pos.stVal RBRF16.ST.OpIn.general CSWI9.ST.Loc.stVal RBRF17.ST.OpEx.general CSWI9.ST.Pos.stVal RBRF17.ST.OpIn.general CSWI10.ST.Loc.stVal RBRF18.ST.OpEx.general CSWI10.ST.Pos.stVal RBRF18.ST.OpIn.general CSWI11.ST.Loc.stVal RBRF19.ST.OpEx.general CSWI11.ST.Pos.stVal RBRF19.ST.OpIn.general CSWI12.ST.Loc.stVal RBRF20.ST.OpEx.general CSWI12.ST.Pos.stVal RBRF20.ST.OpIn.general CSWI13.ST.Loc.stVal GE Multilin L90 Line Current Differential System B-117...
Page 770 XSWI3.ST.Loc.stVal 1006 XCBR5.ST.Pos.stVal XSWI3.ST.Pos.stVal 1007 XCBR6.ST.Loc.stVal XSWI4.ST.Loc.stVal 1008 XCBR6.ST.Pos.stVal XSWI4.ST.Pos.stVal XSWI5.ST.Loc.stVal F617 XSWI5.ST.Pos.stVal ENUMERATION: LOGIN ROLES XSWI6.ST.Loc.stVal Enumeration Role XSWI6.ST.Pos.stVal None XSWI7.ST.Loc.stVal Administrator XSWI7.ST.Pos.stVal Supervisor XSWI8.ST.Loc.stVal Engineer XSWI8.ST.Pos.stVal Operator XSWI9.ST.Loc.stVal Factory XSWI9.ST.Pos.stVal B-118 L90 Line Current Differential System GE Multilin...
Page 771 Item Local and Remote None Local PP/IRIG-B/PTP/SNTP Remote IRIG-B/PP/PTP/SNTP PP/PTP/IRIG-B/SNTP F624 ENUMERATION: RTC SYNCHRONZING SOURCE ACTUALS Enumeration Item None Port 1 PTP Clock Port 2 PTP Clock Port 3 PTP Clock IRIG-B GE Multilin L90 Line Current Differential System B-119...
Page 772 B.4 MEMORY MAPPING APPENDIX B B-120 L90 Line Current Differential System GE Multilin...
Page 773: Iec 61850
System Specification Description (SSD) file. The entire substation con- figuration is stored in a Substation Configuration Description (SCD) file. The SCD file is the combination of the individ- ual ICD files and the SSD file. GE Multilin L90 Line Current Differential System...
Page 774: Server Data Organization
GGIO4 (4 to 32) and the choice of the FlexAnalog values that determine the value of the GGIO4 analog inputs. Clients can utilize polling or the IEC 61850 unbuffered reporting feature available from GGIO4 in order to obtain the analog values provided by GGIO4. L90 Line Current Differential System GE Multilin...
Page 775: Mmxu: Analog Measured Values
The following list describes the protection elements for all UR-series relays. The L90 relay will contain a subset of protec- tion elements from this list. • PDIF: bus differential, transformer instantaneous differential, transformer percent differential, current differential GE Multilin L90 Line Current Differential System...
Page 776 IEC 61850 control model. • XCBR1.CO.BlkCls: This is where IEC 61850 clients can issue block close commands to the breaker. Direct control with normal security is the only supported IEC 61850 control model. L90 Line Current Differential System GE Multilin...
Page 777: Server Features And Configuration
L90. This attribute is programmed through the setting and its LOCATION default value is “Location”. This value should be changed to describe the actual physical location of the L90. GE Multilin L90 Line Current Differential System...
Page 778: Logical Node Name Prefixes
The exact structure and values of the supported IEC 61850 logical nodes can be seen by connecting to a L90 relay with an MMS browser, such as the “MMS Object Explorer and AXS4-MMS” DDE/OPC server from Sisco Inc. L90 Line Current Differential System GE Multilin...
Page 779: Overview
The configurable GOOSE feature allows for the configuration of the datasets to be transmitted or received from the L90. The L90 supports the configuration of eight (8) transmission and reception datasets, allowing for the optimization of data transfer between devices. GE Multilin L90 Line Current Differential System...
Page 780 “GGIO1.ST.Ind1.stVal” to indicate the status value for GGIO1 status indication 1. ITEM 2 The transmission dataset now contains a set of quality flags and a single point status Boolean value. The reception dataset on the receiving device must exactly match this structure. L90 Line Current Differential System GE Multilin...
Page 781 The value of remote input 1 (Boolean on or off) in the receiving device will be determined by the GGIO1.ST.Ind1.stVal value in the sending device. The above settings will be automatically populated by the EnerVista UR Setup software when a com- plete SCD file is created by third party substation configurator software. GE Multilin L90 Line Current Differential System...
Page 782: Ethernet Mac Address For Gsse/Goose
DatSet - the name of the associated dataset, and GoCBRef - the reference (name) of the associated GOOSE control block. These strings are automatically populated and interpreted by the L90; no settings are required. C-10 L90 Line Current Differential System GE Multilin...
Page 783: Iec 61850 Implementation Via Enervista Ur Setup
An ICD file is generated for the L90 by the EnerVista UR Setup software that describe the capabilities of the IED. The ICD file is then imported into a system configurator along with other ICD files for other IEDs (from GE or other ven- dors) for system configuration.
Page 784: Configuring Iec 61850 Settings
It can also import a system SCL file (SCD) to set communication configuration parame- ters (that is, required addresses, reception GOOSE datasets, IDs of incoming GOOSE datasets, etc.) for the IED. The IED configurator functionality is implemented in the GE Multilin EnerVista UR Setup software. C.5.2 CONFIGURING IEC 61850 SETTINGS Before creating an ICD file, the user can customize the IEC 61850 related settings for the IED.
Page 785: About Icd Files
Although configurable transmission GOOSE can also be created and altered by some third-party system con- figurators, we recommend configuring transmission GOOSE for GE Multilin IEDs before creating the ICD, and strictly within EnerVista UR Setup software or the front panel display (access through the Settings > Product Setup > Com- munications >...
Page 786 Furthermore, it defines the capabilities of an IED in terms of communication services offered and, together with its LNType, instantiated data (DO) and its default or configuration values. There should be only one IED section in an ICD since it only describes one IED. C-14 L90 Line Current Differential System GE Multilin...
Page 787 Other ReportControl elements DOI (name) SDI (name) DAI (name) Text Other DOI elements SDI (name) DAI (name) Text Other LN elements Other LDevice elements 842797A1.CDR Figure 0–4: ICD FILE STRUCTURE, IED NODE GE Multilin L90 Line Current Differential System C-15...
Page 788 BDA (name, bType, type) Other BDA elements Other BDA elements Other DAType elements Other DAType elements EnumType (id) Text EnumVal (ord) Other EnumVal elements Other EnumType elements 842798A1.CDR Figure 0–5: ICD FILE STRUCTURE, DATATYPETEMPLATES NODE C-16 L90 Line Current Differential System GE Multilin...
Page 789: Creating An Icd File With Enervista Ur Setup
C.5.5 ABOUT SCD FILES System configuration is performed in the system configurator. While many vendors (including GE Multilin) are working their own system configuration tools, there are some system configurators available in the market (for example, Siemens DIGSI version 4.6 or above and ASE Visual SCL Beta 0.12).
Page 790 Like ICD files, the Header node identifies the SCD file and its version, and specifies options for the mapping of names to signals. The Substation node describes the substation parameters: Substation PowerSystemResource EquipmentContainer Power Transformer GeneralEquipment EquipmentContainer VoltageLevel Voltage PowerSystemResource Function SubFunction GeneralEquipment 842792A1.CDR Figure 0–7: SCD FILE STRUCTURE, SUBSTATION NODE C-18 L90 Line Current Differential System GE Multilin...
Page 791 IdInst is the instance identification of the logical device within the IED on which the control block is located, and cbName is the name of the control block. GE Multilin L90 Line Current Differential System...
Page 792: Importing An Scd File With Enervista Ur Setup
The following procedure describes how to update the L90 with the new configuration from an SCD file with the EnerVista UR Setup software. Right-click anywhere in the files panel and select the Import Contents From SCD File item. Select the saved SCD file and click Open. C-20 L90 Line Current Differential System GE Multilin...
Page 793 The software will open the SCD file and then prompt the user to save a UR-series settings file. Select a location and name for the URS (UR-series relay settings) file. If there is more than one GE Multilin IED defined in the SCD file, the software prompt the user to save a UR-series set- tings file for each IED.
Page 794: Acsi Conformance
REPORTING Buffered report control M7-1 sequence-number M7-2 report-time-stamp M7-3 reason-for-inclusion M7-4 data-set-name M7-5 data-reference M7-6 buffer-overflow M7-7 entryID M7-8 BufTm M7-9 IntgPd M7-10 Unbuffered report control M8-1 sequence-number M8-2 report-time-stamp M8-3 reason-for-inclusion C-22 L90 Line Current Differential System GE Multilin...
Page 795: Acsi Services Conformance Statement
UR FAMILY PUBLISHER SERVER (CLAUSE 7) ServerDirectory APPLICATION ASSOCIATION (CLAUSE 8) Associate Abort Release LOGICAL DEVICE (CLAUSE 9) LogicalDeviceDirectory LOGICAL NODE (CLAUSE 10) LogicalNodeDirectory GetAllDataValues DATA (CLAUSE 11) GetDataValues SetDataValues GetDataDirectory GetDataDefinition GE Multilin L90 Line Current Differential System C-23...
Page 796 LOG CONTROL BLOCK GetLCBValues SetLCBValues QueryLogByTime QueryLogByEntry GetLogStatusValues GENERIC SUBSTATION EVENT MODEL (GSE) (CLAUSE 18, ANNEX C) GOOSE-CONTROL-BLOCK (CLAUSE 18) SendGOOSEMessage GetReference GetGOOSEElementNumber GetGoCBValues SetGoCBValues GSSE-CONTROL-BLOCK (ANNEX C) SendGSSEMessage GetReference GetGSSEElementNumber GetGsCBValues C-24 L90 Line Current Differential System GE Multilin...
Page 797 (SendGOOSEMessage or SendGSSEMessage) NOTE c9: shall declare support if TP association is available c10: shall declare support for at least one (SendMSVMessage or SendUSVMessage) GE Multilin L90 Line Current Differential System C-25...
Page 798: Logical Nodes
GGIO: Generic process I/O GLOG: Generic log GSAL: Generic security application I: LOGICAL NODES FOR INTERFACING AND ARCHIVING IARC: Archiving IHMI: Human machine interface ISAF: Safety alarm function ITCI: Telecontrol interface ITMI: Telemonitoring interface C-26 L90 Line Current Differential System GE Multilin...
Page 799 PSCH: Protection scheme PSDE: Sensitive directional earth fault PTEF: Transient earth fault PTOC: Time overcurrent PTOF: Overfrequency PTOV: Overvoltage PTRC: Protection trip conditioning PTTR: Thermal overload PTUC: Undercurrent PTUF: Underfrequency PTUV: Undervoltage GE Multilin L90 Line Current Differential System C-27...
Page 800 T: LOGICAL NODES FOR INSTRUMENT TRANSFORMERS TANG: Angle TAXD: Axial displacement TCTR: Current transformer TDST: Distance TFLW: Liquid flow TFRQ: Frequency TGSN: Generic sensor THUM: Humidity TLVL: Media level TMGF: Magnetic field TMVM: Movement sensor C-28 L90 Line Current Differential System GE Multilin...
Page 801 ZLIN: Power overhead line ZMOT: Motor ZREA: Reactor ZRES: Resistor ZRRC: Rotating reactive component ZSAR: Surge arrestor ZSCR: Semi-conductor controlled rectifier ZSMC: Synchronous machine ZTCF: Thyristor controlled frequency converter ZTRC: Thyristor controlled reactive component GE Multilin L90 Line Current Differential System C-29...
Page 802 C.7 LOGICAL NODES APPENDIX C C-30 L90 Line Current Differential System GE Multilin...
Page 803: Iec 60870-5-104
Balanced Transmision Not Present (Balanced Transmission Only)   Unbalanced Transmission One Octet  Two Octets  Structured  Unstructured Frame Length (maximum length, number of octets): Not selectable in companion IEC 60870-5-104 standard GE Multilin L90 Line Current Differential System...
Page 804  <18> := Packed start events of protection equipment with time tag M_EP_TB_1  <19> := Packed output circuit information of protection equipment with time tag M_EP_TC_1  <20> := Packed single-point information with status change detection M_SP_NA_1 L90 Line Current Differential System GE Multilin...
Page 805  <103> := Clock synchronization command (see Clause 7.6 in standard) C_CS_NA_1  <104> := Test command C_TS_NA_1  <105> := Reset process command C_RP_NA_1  <106> := Delay acquisition command C_CD_NA_1  <107> := Test command with time tag CP56Time2a C_TS_TA_1 GE Multilin L90 Line Current Differential System...
Page 806 •Blank boxes indicate functions or ASDU not used. •‘X’ if only used in the standard direction TYPE IDENTIFICATION CAUSE OF TRANSMISSION MNEMONIC <1> M_SP_NA_1 <2> M_SP_TA_1 <3> M_DP_NA_1 <4> M_DP_TA_1 <5> M_ST_NA_1 <6> M_ST_TA_1 <7> M_BO_NA_1 <8> M_BO_TA_1 <9> M_ME_NA_1 L90 Line Current Differential System GE Multilin...
Page 807 M_ME_TD_1 <35> M_ME_TE_1 <36> M_ME_TF_1 <37> M_IT_TB_1 <38> M_EP_TD_1 <39> M_EP_TE_1 <40> M_EP_TF_1 <45> C_SC_NA_1 <46> C_DC_NA_1 <47> C_RC_NA_1 <48> C_SE_NA_1 <49> C_SE_NB_1 <50> C_SE_NC_1 <51> C_BO_NA_1 <58> C_SC_TA_1 <59> C_DC_TA_1 <60> C_RC_TA_1 GE Multilin L90 Line Current Differential System...
Page 808 F_FR_NA_1 <121> F_SR_NA_1 <122> F_SC_NA_1 <123> F_LS_NA_1 <124> F_AF_NA_1 <125> F_SG_NA_1 <126> F_DR_TA_1*) BASIC APPLICATION FUNCTIONS Station Initialization:  Remote initialization Cyclic Data Transmission:  Cyclic data transmission Read Procedure:  Read procedure L90 Line Current Differential System GE Multilin...
Page 809  Mode B: Local freeze with counter interrogation  Mode C: Freeze and transmit by counter-interrogation commands  Mode D: Freeze by counter-interrogation command, frozen values reported simultaneously  Counter read  Counter freeze without reset GE Multilin L90 Line Current Differential System...
Page 810 Maximum number of outstanding I-format APDUs k and latest acknowledge APDUs (w): PARAMETER DEFAULT REMARKS SELECTED VALUE VALUE 12 APDUs Maximum difference receive sequence number to send state variable 12 APDUs 8 APDUs 8 APDUs Latest acknowledge after receiving I-format APDUs L90 Line Current Differential System GE Multilin...
Page 811: Point List
The IEC 60870-5-104 data points are configured through the    SETTINGS PRODUCT SETUP COMMUNICATIONS DNP / menu. Refer to the Communications section of Chapter 5 for additional details. IEC104 POINT LISTS GE Multilin L90 Line Current Differential System...
Page 812 D.1 IEC 60870-5-104 APPENDIX D D-10 L90 Line Current Differential System GE Multilin...
Page 813: Device Profile Document
Maximum Data Link Re-tries: Maximum Application Layer Re-tries:  None  None  Fixed at 3  Configurable  Configurable Requires Data Link Layer Confirmation:  Never  Always  Sometimes  Configurable GE Multilin L90 Line Current Differential System...
Page 814 FlexLogic. The On/Off times and Count value are ignored. “Pulse Off” and “Latch Off” operations put the appropriate Virtual Input into the “Off” state. “Trip” and “Close” operations both put the appropriate Virtual Input into the “On” state. L90 Line Current Differential System GE Multilin...
Page 815  16 Bits (Counter 8) Default Variation: 1  32 Bits (Counters 0 to 7, 9)  Point-by-point list attached  Other Value: _____  Point-by-point list attached Sends Multi-Fragment Responses:  Yes  No GE Multilin L90 Line Current Differential System...
Page 816: E.1.2 Implementation Table
Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L90 is not restarted, but the DNP process is restarted. L90 Line Current Differential System GE Multilin...
Page 817 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L90 is not restarted, but the DNP process is restarted. GE Multilin L90 Line Current Differential System...
Page 818 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L90 is not restarted, but the DNP process is restarted. L90 Line Current Differential System GE Multilin...
Page 819 Otherwise, static object requests sent with qualifiers 00, 01, 06, 07, or 08, will be responded with qualifiers 00 or 01 (for change- event objects, qualifiers 17 or 28 are always responded.) Note 3: Cold restarts are implemented the same as warm restarts – the L90 is not restarted, but the DNP process is restarted. GE Multilin L90 Line Current Differential System...
Page 820: Dnp Point Lists
Change Event Variation reported when variation 0 requested: 2 (Binary Input Change with Time), Configurable Change Event Scan Rate: 8 times per power system cycle Change Event Buffer Size: 500 Default Class for All Points: 1 L90 Line Current Differential System GE Multilin...
Page 821: Binary And Control Relay Output
Virtual Input 59 Virtual Input 28 Virtual Input 60 Virtual Input 29 Virtual Input 61 Virtual Input 30 Virtual Input 62 Virtual Input 31 Virtual Input 63 Virtual Input 32 Virtual Input 64 GE Multilin L90 Line Current Differential System...
Page 822: Counters
A counter freeze command has no meaning for counters 8 and 9. L90 Digital Counter values are represented as 32-bit inte- gers. The DNP 3.0 protocol defines counters to be unsigned integers. Care should be taken when interpreting negative counter values. E-10 L90 Line Current Differential System GE Multilin...
Page 823: Analog Inputs
Change Event Variation reported when variation 0 requested: 1 (Analog Change Event without Time) Change Event Scan Rate: defaults to 500 ms Change Event Buffer Size: 256 Default Class for all Points: 2 GE Multilin L90 Line Current Differential System E-11...
Page 824 E.2 DNP POINT LISTS APPENDIX E E-12 L90 Line Current Differential System GE Multilin...
Page 825: Change Notes
31 March 2006 URX-217 1601-0081-N2 5.0x 26 May 2006 URX-220 1601-0081-P1 5.2x 23 October 2006 URX-230 1601-0081-P2 5.2x 24 January 2007 URX-232 1601-0081-R1 5.4x 26 June 2007 URX-242 1601-0081-R2 5.4x 31 August 2007 URX-246 GE Multilin L90 Line Current Differential System...
Page 826: Changes To The L90 Manual
Table F–3: MAJOR UPDATES FOR L90 MANUAL REVISION Y3 PAGE PAGE CHANGE DESCRIPTION (Y2) (Y3) Added battery disposal information as chapter 0 5-246 5-246 Update Updated Figure 5-132 Trip Output Scheme Logic (Sheet 1 of 2) L90 Line Current Differential System GE Multilin...
Page 827 Updated Figure: Complete Synchrophasor Implementation 5-92 Added Figure: N60 Support For Four Logical Device PMU 5-92 5-92 Update Updated Table: Implementation By Model Number 5-93 Added Figure: Logical Nodes Supported In Each Logical Device GE Multilin L90 Line Current Differential System...
Page 828 Updated Modbus memory map table to include port 0 for Modbus slave address, TCP, DNP, HTTP, TFTP, MMS, and removed references to COM 1 RS485 port C-23 C-23 Update Updated tables in sections C.6.3 ACSI Services Conformance Statement and C.7.1 Logical Nodes Table L90 Line Current Differential System GE Multilin...
Page 829: Abbreviations
.EVT ....Filename extension for event recorder files EXT ....Extension, External F ..... Field FAIL....Failure FD ....Fault Detector FDH....Fault Detector high-set FDL ....Fault Detector low-set FLA....Full Load Current FO ....Fiber Optic GE Multilin L90 Line Current Differential System...
Page 830 FSK ....Frequency-Shift Keying FTP ....File Transfer Protocol FxE....FlexElement™ FWD ....Forward G ....Generator GE ....General Electric GND ....Ground GNTR ..... Generator GOOSE ..General Object Oriented Substation Event GPS....Global Positioning System HARM..... Harmonic / Harmonics HCT....
Page 831 ..... second S..... Sensitive SAT ....CT Saturation SBO....Select Before Operate SCADA... Supervisory Control and Data Acquisition SEC....Secondary SEL ....Select / Selector / Selection SENS ..... Sensitive SEQ....Sequence GE Multilin L90 Line Current Differential System...
Page 832 VTLOS ... Voltage Transformer Loss Of Signal WDG ....Winding WH ....Watt-hour w/ opt....With Option WRT ....With Respect To X..... Reactance XDUCER ..Transducer XFMR ..... Transformer Z ..... Impedance, Zone L90 Line Current Differential System GE Multilin...
Page 833: F.3.1 Ge Multilin Warranty
24 months from date of shipment from factory. In the event of a failure covered by warranty, GE Multilin will undertake to repair or replace the relay providing the warrantor determined that it is defective and it is returned with all transportation charges prepaid to an authorized service centre or the factory.
Page 834: Warranty
F.3 WARRANTY APPENDIX F F-10 L90 Line Current Differential System GE Multilin...
Page 835 BREAKER-AND-A-HALF SCHEME ........5-6 logic ................5-237 BRIGHTNESS ..............5-18 Modbus registers ............B-52 BROKEN CONDUCTOR settings ............... 5-236 FlexLogic operands ............5-131 specifications ..............2-23 settings ............... 5-292 BROKEN CONDUCTOR DETECTION Modbus registers ............B-49 GE Multilin L90 Line Current Differential System...
Page 836 ................5-243 settings ........5-24, 5-29, 5-34, 5-49, 5-50 CURRENT METERING specifications ............2-30, 2-31 actual values ..............6-16 UCA/MMS ..............5-342 Modbus registers ............B-13 web server..............5-48 specifications ..............2-27 COMPATIBILITY ..............1-4 L90 Line Current Differential System GE Multilin...
Page 837 ..........E-1 FlexLogic operands ............. 5-131 frozen counters ............. E-10 logic ................5-269 implementation table ............E-4 Modbus registers ............B-53 Modbus registers ............B-28 settings ............... 5-269 settings ................. 5-29 GE Multilin L90 Line Current Differential System...
Page 838 FAST FORM-C RELAY ............. 2-29 Modbus registers ............B-36 FAST TRANSIENT TESTING ..........2-32 settings ................ 5-146 FAULT DETECTION ............9-3 FORCE CONTACT INPUTS ..........5-355 FORCE CONTACT OUTPUTS ......... 5-356 FORCE TRIGGER ............6-26 L90 Line Current Differential System GE Multilin...
Page 839 IEC CURVES ..............5-191 IED ..................1-3 G.703 ............ 3-28, 3-29, 3-30, 3-34 IED SETUP ................ 1-6 GE TYPE IAC CURVES ..........5-192 IEEE C37.94 COMMUNICATIONS ....3-34, 3-36, 3-39 GROUND CURRENT METERING ........6-17 IEEE CURVES ............... 5-189 GROUND DIRECTIONAL SUPERVISION ......5-177 IMPORTANT CONCEPTS ...........1-5...
Page 840 .............. 5-220 MEMORY MAP DATA FORMATS ........B-80 FlexLogic operands ............5-132 MEMORY POLARIZATION ..........9-25 logic ................5-221 MEMORY VOLTAGE LOGIC ........... 5-161 settings ............. 5-218, 5-221 MENU HIERARCHY ..........1-18, 4-25 specifications ..............2-22 L90 Line Current Differential System GE Multilin...
Page 841 Modbus ................B-7 ORDER CODES, UPDATING ..........7-3 Modbus registers ........B-16, B-27, B-28 ORDERING ..........2-4, 2-6, 2-8, 2-10 overview ................ 1-19 OSCILLATORY TRANSIENT TESTING ......2-32 security ................5-8 settings ................5-8 GE Multilin L90 Line Current Differential System...
Page 842 PHASELETS ............... 9-1, 9-2 PHASOR ESTIMATION ............ 9-20 PHASOR MEASUREMENT UNIT actual values ..............6-26 PHASORS ..............9-1, 9-2 QUAD DISTANCE CHARACTERISTIC ...5-164, 5-165, 5-172, 9- PILOT CHANNEL RELAYING ..........2-15 24, 9-25 viii L90 Line Current Differential System GE Multilin...
Page 843 RFI, CONDUCTED ............2-32 SETTINGS, CHANGING ........... 4-26 RMS CURRENT ............... 2-27 SIGNAL SOURCES RMS VOLTAGE ............... 2-27 metering ................ 6-16 ROLLING DEMAND ............5-63 settings ................. 5-82 SIGNAL TYPES ..............1-4 SINGLE-LINE DIAGRAM ............. 2-2 GE Multilin L90 Line Current Differential System...
Page 844 SYSTEM SETUP .............. 5-79 UL APPROVAL ..............2-33 UNAUTHORIZED ACCESS commands ..............5-20 resetting ................. 7-2 UNBLOCKING SCHEME TARGET MESSAGES ............7-6 Modbus registers ............B-45 TARGET SETTING ............. 5-5 settings ................ 5-316 TARGETS MENU ............... 7-6 L90 Line Current Differential System GE Multilin...
Page 845 ..............6-4 ZERO SEQUENCE CORE BALANCE ........ 3-12 commands ..............7-1 ZERO-SEQUENCE CURRENT REMOVAL ......5-86 FlexLogic operands ............. 5-137 logic ................5-336 Modbus registers ............ B-9, B-67 settings ............... 5-336 GE Multilin L90 Line Current Differential System...
Page 846 INDEX L90 Line Current Differential System GE Multilin...

GE UR Series L90 Instruction Manual

1 Getting Started

2 Product Description

3 Hardware

4 Human Interfaces

5 Settings

6 Actual Values

7 Commands and

8 Security

9 Theory of Operation

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Summary of Contents for GE UR Series L90