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GE L30 Instruction Manual

Ur series line current differential system.
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Table of Contents
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Table of Contents
GE
Digital Energy
GE Digital Energy
650 Markland Street
Markham, Ontario
Canada L6C 0M1
Tel: +1 905 927 7070 Fax: +1 905 927 5098
Internet:
http://www.GEDigitalEnergy.com
*1601-9050-Z3*
L30 Line Current Differential
UR Series Instruction Manual
Manual P/N: 1601-9050-Z3 (GEK-119520B)
IND.CONT. EQ.
System
L30 revision: 7.1x
831776A2.CDR
E83849
LISTED
52TL
GE Multilin's Quality Management
System is registered to ISO
9001:2008
QMI # 005094
UL # A3775

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Table of Contents

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   Summary of Contents for GE L30

  • Page 1 Digital Energy L30 Line Current Differential System UR Series Instruction Manual L30 revision: 7.1x Manual P/N: 1601-9050-Z3 (GEK-119520B) 831776A2.CDR E83849 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...
  • 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 1.3 ENERVISTA UR SETUP SOFTWARE 1.3.1 PC REQUIREMENTS ..................1-6 1.3.2 INSTALLATION....................1-6 1.3.3 CONFIGURING THE L30 FOR SOFTWARE ACCESS........1-7 1.3.4 USING THE QUICK CONNECT FEATURE............. 1-10 1.3.5 CONNECTING TO THE L30 RELAY ............... 1-15 1.3.6 SETTING UP CYBERSENTRY AND CHANGING DEFAULT PASSWORD ... 1-16 1.4 UR HARDWARE...
  • Page 4 5.2 PRODUCT SETUP 5.2.1 SECURITY......................5-8 5.2.2 DISPLAY PROPERTIES ..................5-24 5.2.3 CLEAR RELAY RECORDS ................5-26 5.2.4 COMMUNICATIONS ..................5-27 5.2.5 MODBUS USER MAP ..................5-57 5.2.6 REAL TIME CLOCK ..................5-58 5.2.7 FAULT REPORTS ....................5-63 5.2.8 OSCILLOGRAPHY ...................5-65 L30 Line Current Differential System GE Multilin...
  • Page 5 5.8.7 REMOTE DOUBLE-POINT STATUS INPUTS ..........5-243 5.8.8 REMOTE OUTPUTS..................5-243 5.8.9 DIRECT INPUTS AND OUTPUTS ..............5-244 5.8.10 RESETTING....................5-247 5.8.11 IEC 61850 GOOSE ANALOGS..............5-247 5.8.12 IEC 61850 GOOSE INTEGERS..............5-248 GE Multilin L30 Line Current Differential System...
  • Page 6 6.5 PRODUCT INFORMATION 6.5.1 MODEL INFORMATION ...................6-25 6.5.2 FIRMWARE REVISIONS..................6-25 7. COMMANDS AND 7.1 COMMANDS TARGETS 7.1.1 COMMANDS MENU ...................7-1 7.1.2 VIRTUAL INPUTS ....................7-1 7.1.3 CLEAR RECORDS .....................7-2 7.1.4 SET DATE AND TIME ..................7-2 L30 Line Current Differential System GE Multilin...
  • Page 7 COMPENSATION METHOD 1 ................9-7 9.3.3 COMPENSATION METHOD 2 ................9-8 9.3.4 COMPENSATION METHOD 3 ................9-8 9.4 INSTANTANEOUS ELEMENTS 9.4.1 INSTANTANEOUS ELEMENT ERROR DURING L30 SYNCHRONIZATION. 9-10 10. COMMISSIONING 10.1 TESTING 10.1.1 CHANNEL TESTING ..................10-1 GE Multilin L30 Line Current Differential System...
  • Page 8 C.2.3 GGIO2: DIGITAL CONTROL VALUES.............. C-3 C.2.4 GGIO3: DIGITAL STATUS AND ANALOG VALUES FROM GOOSE DATA ..C-3 C.2.5 GGIO4: GENERIC ANALOG MEASURED VALUES......... C-3 C.2.6 MMXU: ANALOG MEASURED VALUES ............C-4 viii L30 Line Current Differential System GE Multilin...
  • Page 9 F.1 RADIUS SERVER CONFIGURATION F.1.1 RADIUS SERVER CONFIGURATION............... F-1 G. MISCELLANEOUS G.1 CHANGE NOTES G.1.1 REVISION HISTORY ..................G-1 G.1.2 CHANGES TO THE L30 MANUAL ..............G-1 G.2 ABBREVIATIONS G.2.1 STANDARD ABBREVIATIONS ................ G-5 GE Multilin L30 Line Current Differential System...
  • Page 10 TABLE OF CONTENTS G.3 WARRANTY G.3.1 GE MULTILIN WARRANTY................G-7 L30 Line Current Differential System GE Multilin...
  • Page 11: Cautions And Warnings

    1.1 IMPORTANT PROCEDURES 1 GETTING STARTED 1.1IMPORTANT PROCEDURES Use this chapter for initial setup of your new L30 Line Current Differential System. 1.1.1 CAUTIONS AND WARNINGS Before attempting to install or use the device, review all safety indicators in this document to help prevent injury, equipment damage, or downtime.
  • Page 12: Inspection Procedure

    • GE EnerVista™ CD (includes the EnerVista UR Setup software and manuals in PDF format) • Mounting screws If there is any noticeable physical damage, or any of the contents listed are missing, please contact GE Digital Energy immediately as follows.
  • Page 13: Introduction To The Ur

    1.2UR OVERVIEW 1.2.1 INTRODUCTION TO THE UR The GE Universal Relay (UR) series is a new generation of digital, modular, and multifunction equipment that is easily incorporated into automation systems, at both the station and enterprise levels. 1.2.2 HARDWARE ARCHITECTURE...
  • Page 14 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 L30 Line Current Differential System GE Multilin...
  • Page 15: Software Architecture

    Employing OOD/OOP in the software architecture of the L30 achieves the same features as the hardware architecture: modularity, scalability, and flexibility. The application software for any UR-series device (for example, feeder protection, transformer protection, distance protection) is constructed by combining objects from the various functional classes.
  • Page 16: Pc Requirements

    Ethernet port of the same type as one of the UR CPU ports or a LAN connection to the UR • Internet access or a DVD drive The following qualified modems have been tested to be compliant with the L30 and the EnerVista UR Setup software: • US Robotics external 56K FaxModem 5686 •...
  • Page 17: Configuring The L30 For Software Access

    To configure the L30 for remote access via the rear Ethernet port, see the Configuring Ethernet Communications sec- tion. • To configure the L30 for local access with a computer through either the front RS232 port or rear Ethernet port, see the Using the Quick Connect Feature section. GE Multilin...
  • Page 18 CONFIGURING SERIAL COMMUNICATIONS A computer with an RS232 port and a serial cable is required. To use the RS485 port at the back of the relay, a GE Multilin F485 converter (or compatible RS232-to-RS485 converter) is required. See the F485 instruction manual for details.
  • Page 19 MODBUS PROTOCOL 21. Click the Read Order Code button to connect to the L30 device and upload the order code. If an communications error occurs, ensure that the three EnerVista UR Setup values entered in the previous steps correspond to the relay setting values.
  • Page 20: Using The Quick Connect Feature

    USING QUICK CONNECT VIA THE REAR ETHERNET PORTS To use the Quick Connect feature to access the L30 from a computer through Ethernet, first assign an IP address to the relay from the front panel keyboard. Press the MENU key until the SETTINGS menu displays.
  • Page 21 Right-click the Local Area Connection icon and select Properties. Select the Internet Protocol (TCP/IP) item from the list, and click the Properties button. Click the “Use the following IP address” box. GE Multilin L30 Line Current Differential System 1-11...
  • Page 22 1.3 ENERVISTA UR SETUP SOFTWARE 1 GETTING STARTED Enter an IP address with the first three numbers the same as the IP address of the L30 relay and the last number dif- ferent (in this example, 1.1.1.2). Enter a subnet mask equal to the one set in the L30 (in this example, 255.0.0.0).
  • Page 23 Ensure that the “Use a proxy server for your LAN” box is not checked. If this computer is used to connect to the Internet, re-enable any proxy server settings after the computer has been discon- nected from the L30 relay. Start the Internet Explorer software.
  • Page 24 Click the Quick Connect button to open the Quick Connect dialog box. Select the Ethernet interface and enter the IP address assigned to the L30, then click the Connect button. The EnerV- ista UR Setup software creates a site named “Quick Connect” with a corresponding device also named “Quick Con- nect”...
  • Page 25: Connecting To The L30 Relay

    The EnerVista UR Setup software has several quick action buttons to provide instant access to several functions that are often performed when using L30 relays. From the online window, users can select the relay to interrogate from a pull-down window, then click the button for the action they want to perform. The following quick action functions are available: •...
  • Page 26: Setting Up Cybersentry And Changing Default Password

    . Be sure to disable this bypass setting after SETTINGS > PRODUCT SETUP > SECURITY > SUPERVISORY commissioning the device. You can change the password for any role either from the front panel or through EnerVista. 1-16 L30 Line Current Differential System GE Multilin...
  • Page 27 It is strongly recommended that the password for the Administrator be changed from the default. Changing the passwords for the other three roles is optional. Figure 1–11: CHANGING THE DEFAULT PASSWORD GE Multilin L30 Line Current Differential System 1-17...
  • Page 28: Mounting And Wiring

    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 L30 rear communications port. The converter terminals (+, –, GND) are connected to the L30 communication module (+, –, COM) terminals. See the CPU communica- tions ports section in chapter 3 for details.
  • Page 29: Faceplate Keypad

    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. GE Multilin L30 Line Current Differential System 1-19...
  • Page 30: Relay Passwords

    For more information, see the CyberSentry content in the Security section of the next chapter. 1.5.6 FLEXLOGIC CUSTOMIZATION FlexLogic equation editing is required for setting user-defined logic for customizing the relay operations. See the FlexLogic section in Chapter 5. 1-20 L30 Line Current Differential System GE Multilin...
  • Page 31: Commissioning

    The L30 performs a number of continual self-tests and takes the necessary action in case of any major errors (see the Relay Self-tests section in chapter 7). However, it is recommended that L30 maintenance be scheduled with other system maintenance.
  • Page 32 1.5 USING THE RELAY 1 GETTING STARTED 1-22 L30 Line Current Differential System GE Multilin...
  • Page 33: Overview

    The L30 is intended to provide complete protection for transmission lines of any voltage level. Both three phase and single phase tripping schemes are available. Models of the L30 are available for application on both two and three terminal lines.
  • Page 34 Non-volatile selector switch Virtual outputs (96) Direct inputs (8 per pilot channel) Open pole detector VT fuse failure Disconnect switches Oscillography DNP 3.0 or IEC 60870-5-104 protocol Setting groups (6) Event recorder Stub bus L30 Line Current Differential System GE Multilin...
  • Page 35: 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 36: Security

    Clearing fault reports • Changing the date and time • Clearing the breaker arcing current • Clearing the data logger • Clearing the user-programmable pushbutton states The following operations are under setting password supervision: L30 Line Current Differential System GE Multilin...
  • Page 37 When entering a settings or command password via EnerVista or any serial interface, the user must enter the correspond- ing connection password. If the connection is to the back of the L30, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password applies.
  • Page 38 User Programmable |--------------- LEDs User Programmable |--------------- self test |--------------- Control Pushbuttons User programmable |--------------- Pushbuttons |--------------- Flex states User definable dis- |--------------- plays |--------------- Direct I/O |--------------- Tele-protection |--------------- Installation |------------ System Setup L30 Line Current Differential System GE Multilin...
  • Page 39 Actual Values |------------ Front Panel Labels Designer |------------ Status |------------ Metereing |------------ Transducer I/O |------------ Records |------------ Product Info Maintenance |------------ Modbus Analyzer |------------ Change Front Panel |------------ Update Firmware |------------ Retrieve File GE Multilin L30 Line Current Differential System...
  • Page 40: Ordering

    2.1.4 ORDERING a) OVERVIEW The L30 is available as a 19-inch rack horizontal mount or reduced-size (¾) vertical unit and consists of the following mod- ules: power supply, CPU, CT/VT, contact input and output, transducer input and output, and inter-relay communications.
  • Page 41 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION Table 2–4: L30 ORDER CODES (HORIZONTAL UNITS) * - F - W/X Full Size Horizontal Mount BASE UNIT Base Unit IEEE 1588 and CyberSentry Lvl 1 IEEE 1588 and CyberSentry Lvl 1 and IEC 61850...
  • Page 42 RS422, 2 Channels, 2 Clock Inputs RS422, 2 Channels The order codes for the reduced size vertical mount units are shown below. Table 2–5: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS) * - F Reduced Size Vertical Mount BASE UNIT...
  • Page 43 RS422, 2 Channels c) ORDER CODES WITH PROCESS BUS MODULES The order codes for the horizontal mount units with the process bus module are shown below. Table 2–6: L30 ORDER CODES (HORIZONTAL UNITS WITH PROCESS BUS) * - F - W/X...
  • Page 44 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION Table 2–6: L30 ORDER CODES (HORIZONTAL UNITS WITH PROCESS BUS) * - F - W/X Full Size Horizontal Mount BASE UNIT Base Unit IEEE 1588 and PRP IEEE 1588, PRP, IEC 61850 IEEE 1588, PRP, and PMU...
  • Page 45 2 PRODUCT DESCRIPTION 2.1 INTRODUCTION The order codes for the reduced size vertical mount units with the process bus module are shown below. Table 2–7: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS WITH PROCESS BUS) * - F Reduced Size Vertical Mount...
  • Page 46 2.1 INTRODUCTION 2 PRODUCT DESCRIPTION Table 2–7: L30 ORDER CODES (REDUCED SIZE VERTICAL UNITS WITH PROCESS BUS) * - F Reduced Size Vertical Mount POWER SUPPLY 125 / 250 V AC/DC power supply 24 to 48 V (DC only) power supply...
  • Page 47: Replacement Modules

    Replacement modules can be ordered separately. When ordering a replacement CPU module or faceplate, provide the serial number of your existing unit. Not all replacement modules may be applicable to the L30 relay. Only the modules specified in the order codes are available as replacement modules.
  • Page 48 Channel 1 - RS422; Channel 2 - 1300 nm, single-mode, LASER Channel 1 - G.703; Channel 2 - 1300 nm, single-mode LASER G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel RS422, 2 Channels 2-16 L30 Line Current Differential System GE Multilin...
  • Page 49: Inter-relay Communications

    (DTT) signal to all of the other L30 relays on the protected line. If a slave L30 relay issues a trip from one of its backup functions, it can send a transfer trip signal to its master and other slave relays if such option is designated.
  • Page 50: Channel Monitor

    2.2.2 CHANNEL MONITOR The L30 has logic to detect that the communications channel is deteriorating or has failed completely. This can provide an alarm indication and disable the current differential protection. Note that a failure of the communications from the master to a slave does not prevent the master from performing the current differential algorithm;...
  • Page 51: Loopback Test

    The L30 includes provision for sending and receiving a single-pole direct transfer trip (DTT) signal from current differential protection between the L30 relays at the line terminals using the pilot communications channel. The user may also initiate an additional eight pilot signals with an L30 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.
  • Page 52: Protection And Control Functions

    Current differential protection: The current differential algorithms used in the L30 Line Current Differential System are based on the Fourier transform phaselet approach and an adaptive statistical restraint. The L30 uses per-phase differential at 64 kbps with two phaselets per cycle. A detailed description of the current differential algorithms is found in chapter 8.
  • 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 2–4: L30 BLOCK DIAGRAM GE Multilin L30 Line Current Differential System 2-21...
  • Page 54: Protection Elements

    Operate time: <20 ms at 3 × pickup at 60 Hz range of 0.1<V<0.9 VT Nominal in a Timer accuracy: ±3% of operate time or ±1/4 cycle fixed linear relationship (whichever is greater) 2-22 L30 Line Current Differential System GE Multilin...
  • Page 55 Time Dial = 0 to 600.00 in steps of 0.01 above 2 × CT rating: ±2.5% of reading Curve timing accuracy at <0.90 x pickup: ±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate GE Multilin L30 Line Current Differential System 2-23...
  • Page 56: 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 2-24 L30 Line Current Differential System GE Multilin...
  • Page 57: Monitoring

    Relay accuracy: ±1.5% (V > 10 V, I > 0.1 pu) Worst-case accuracy: user data %error user data %error user data Line%error METHOD see chapter 8 %error RELAY ACCURACY + (1.5%) %error GE Multilin L30 Line Current Differential System 2-25...
  • Page 58: Metering

    Current withstand: 20 ms at 250 times rated 1 sec. at 100 times rated continuous 4xInom Short circuit rating:150000 RMS sym- metrical amperes, 250 V maximum (pri- mary current to external CT) 2-26 L30 Line Current Differential System GE Multilin...
  • Page 59: Power Supply

    Make and carry for 0.2 s: 30 A as per ANSI C37.90 Carry continuous: Break (DC inductive, L/R = 40 ms): VOLTAGE CURRENT 24 V 48 V 0.5 A 125 V 0.3 A 250 V 0.2 A GE Multilin L30 Line Current Differential System 2-27...
  • Page 60 Note: values for 24 V and 48 V are the same due to a required 95% voltage drop across the load impedance. Operate time: < 0.6 ms Internal Limiting Resistor: 100 Ω, 2 W 2-28 L30 Line Current Differential System GE Multilin...
  • Page 61: Communication Protocols

    –30 dBm 29 dB Singlemode 1550 nm Laser, +5 dBm –30 dBm 35 dB Singlemode These power budgets are calculated from the manu- facturer’s worst-case transmitter power and worst NOTE case receiver sensitivity. GE Multilin L30 Line Current Differential System 2-29...
  • Page 62: Environmental

    – Overvoltage category: 20°C Ingress protection: IP20 front, IP10 back HUMIDITY Noise: 0 dB Humidity: operating up to 95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days). 2-30 L30 Line Current Differential System GE Multilin...
  • Page 63: Type Tests

    Safety IEC 60255-27 Insulation: class 1, Pollution degree: 2, Over voltage cat II 2.4.12 PRODUCTION TESTS THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. GE Multilin L30 Line Current Differential System 2-31...
  • Page 64: 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. 2-32 L30 Line Current Differential System GE Multilin...
  • Page 65: Panel Cutout

    HORIZONTAL UNITS The L30 Line Current Differential System is available as a 19-inch rack horizontal mount unit with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators.
  • Page 66 VERTICAL UNITS The L30 Line Current Differential System is available as a reduced size (¾) vertical mount unit, with a removable faceplate. The faceplate can be specified as either standard or enhanced at the time of ordering. The enhanced faceplate contains additional user-programmable pushbuttons and LED indicators.
  • Page 67 3 HARDWARE 3.1 DESCRIPTION Figure 3–4: L30 VERTICAL DIMENSIONS (ENHANCED PANEL) GE Multilin L30 Line Current Differential System...
  • Page 68 3.1 DESCRIPTION 3 HARDWARE Figure 3–5: L30 VERTICAL MOUNTING AND DIMENSIONS (STANDARD PANEL) For side mounting L30 devices with the enhanced front panel, see the following documents available on the UR DVD and the GE Digital Energy website: • GEK-113180: UR-Series UR-V Side-Mounting Front Panel Assembly Instructions •...
  • Page 69 3 HARDWARE 3.1 DESCRIPTION Figure 3–6: L30 VERTICAL SIDE MOUNTING INSTALLATION (STANDARD PANEL) GE Multilin L30 Line Current Differential System...
  • Page 70 3.1 DESCRIPTION 3 HARDWARE Figure 3–7: L30 VERTICAL SIDE MOUNTING REAR DIMENSIONS (STANDARD PANEL) L30 Line Current Differential System GE Multilin...
  • Page 71: 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 3–9: EXAMPLE OF MODULES IN F AND H SLOTS GE Multilin L30 Line Current Differential System...
  • Page 72: Typical Wiring

    3.2 WIRING 3 HARDWARE 3.2WIRING 3.2.1 TYPICAL WIRING Figure 3–10: TYPICAL WIRING DIAGRAM (T MODULE SHOWN FOR CPU) L30 Line Current Differential System GE Multilin...
  • Page 73: Dielectric Strength

    (see the Self-test errors section in chapter 7) or control power is lost, the relay is de-energize. For high reliability systems, the L30 has a redundant option in which two L30 power supplies are placed in parallel on the bus.
  • Page 74: Ct And 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 as follows. Twisted-pair cabling on the zero-sequence CT is recommended. 3-10 L30 Line Current Differential System GE Multilin...
  • Page 75 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 3–13: CT/VT MODULE WIRING GE Multilin L30 Line Current Differential System 3-11...
  • Page 76: Process Bus Modules

    3.2.5 PROCESS BUS MODULES The L30 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 77 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). GE Multilin L30 Line Current Differential System 3-13...
  • Page 78 ~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 3-14 L30 Line Current Differential System GE Multilin...
  • Page 79 ~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 GE Multilin L30 Line Current Differential System 3-15...
  • Page 80 3.2 WIRING 3 HARDWARE Figure 3–15: CONTACT INPUT AND OUTPUT MODULE WIRING (1 of 2) 3-16 L30 Line Current Differential System GE Multilin...
  • Page 81 3 HARDWARE 3.2 WIRING Figure 3–16: CONTACT INPUT AND OUTPUT MODULE WIRING (2 of 2) For proper functionality, observe the polarity shown in the figures for all contact input and output con- nections. GE Multilin L30 Line Current Differential System 3-17...
  • Page 82 Wherever a tilde “~” symbol appears, substitute with the slot position of the module. NOTE There is no provision in the relay to detect a DC ground fault on 48 V DC control power external output. We recommend using an external DC supply. 3-18 L30 Line Current Differential System GE Multilin...
  • Page 83 = OFF CONTACT INPUT 1 AUTO-BURNISH = OFF CONTACT INPUT 2 AUTO-BURNISH = ON CONTACT INPUT 1 AUTO-BURNISH = ON CONTACT INPUT 2 AUTO-BURNISH = ON 842751A1.CDR Figure 3–19: AUTO-BURNISH DIP SWITCHES GE Multilin L30 Line Current Differential System 3-19...
  • Page 84 3.2 WIRING 3 HARDWARE 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 L30 Line Current Differential System GE Multilin...
  • Page 85: 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 3–20: TRANSDUCER INPUT/OUTPUT MODULE WIRING The following figure show how to connect RTDs. GE Multilin L30 Line Current Differential System 3-21...
  • Page 86 3.2 WIRING 3 HARDWARE Figure 3–21: RTD CONNECTIONS 3-22 L30 Line Current Differential System GE Multilin...
  • Page 87: Rs232 Faceplate Port

    3.2.8 RS232 FACEPLATE PORT A 9-pin RS232C serial port is located on the L30 faceplate for programming with a computer. All that is required to use this interface is a computer running the EnerVista UR Setup software provided with the relay. Cabling for the RS232 port is shown in the following figure for both 9-pin and 25-pin connectors.
  • Page 88 This common voltage is implied to be a power supply common. Some systems allow the shield (drain wire) to be used as common wire and to connect directly to the L30 COM terminal (#3); others function cor- rectly only if the common wire is connected to the L30 COM terminal, but insulated from the shield.
  • Page 89: Irig-b

    IRIG-B is a standard time code format that allows stamping of events to be synchronized among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. Using the IRIG-B input, the L30 operates an internal oscillator with 1 µs resolution and accuracy.
  • Page 90 20 to 25 degree error in the synchrophasor angle measurement. The IEEE 1588 Precision Time NOTE Protocol can also be used to achieve accurate time synchronization for synchrophasor calculation. 3-26 L30 Line Current Differential System GE Multilin...
  • Page 91: Description

    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 L30 relay requires at least one com- munications channel. GE Multilin L30 Line Current Differential System...
  • Page 92: Fiber: Led And Eled Transmitters

    3.3.3 FIBER-LASER TRANSMITTERS The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser module. Figure 3–27: LASER FIBER MODULES Observing any fiber transmitter output can injure the eye. 3-28 L30 Line Current Differential System GE Multilin...
  • Page 93 3 HARDWARE 3.3 PILOT CHANNEL COMMUNICATIONS 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 L30 Line Current Differential System 3-29...
  • Page 94: G.703 Interface

    Remove the module cover screw. 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. 3-30 L30 Line Current Differential System GE Multilin...
  • Page 95 Loop Timing Mode: The system clock is derived from the received line signal. Therefore, the G.703 timing selection should be in loop timing mode for connections to higher order systems. For connection to a higher order system (UR- GE Multilin L30 Line Current Differential System 3-31...
  • Page 96 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 3–32: G.703 DUAL LOOPBACK MODE 3-32 L30 Line Current Differential System GE Multilin...
  • Page 97: Rs422 Interface

    The send timing outputs from the multiplexer (data module 1), connects to the clock inputs of the UR–RS422 interface in the usual fashion. In addition, GE Multilin L30 Line Current Differential System 3-33...
  • Page 98 Figure 3–35: TIMING CONFIGURATION FOR RS422 TWO-CHANNEL, THREE-TERMINAL APPLICATION Data module 1 provides timing to the L30 RS422 interface via the ST(A) and ST(B) outputs. Data module 1 also provides timing to data module 2 TT(A) and TT(B) inputs via the ST(A) and AT(B) outputs. The data module pin numbers have been omitted in the figure above since they vary by manufacturer.
  • Page 99: Two-channel Two-clock Rs422 Interface

    74 modules are used in two-terminal with a redundant channel or three-terminal configurations where channel 1 is employed via the RS422 interface (possibly with a multiplexer) and channel 2 via direct fiber. GE Multilin L30 Line Current Differential System 3-35...
  • Page 100: G.703 And Fiber Interface

    The frame is 256 bits and is repeated at a frame rate of 8000 Hz, with a resultant bit rate of 2048 kbps. The specifications for the module are as follows:. 3-36 L30 Line Current Differential System GE Multilin...
  • Page 101 5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of L30 communi- cation for two and three terminal applications.
  • Page 102 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 3–40: IEEE C37.94 TIMING SELECTION SWITCH SETTING 3-38 L30 Line Current Differential System GE Multilin...
  • Page 103 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 L30 Line Current Differential System 3-39...
  • Page 104: C37.94sm Interface

    5.60. For customers using firmware release 5.60 and higher, the module can be identified with "Rev D" printed on the module and is to be used on all ends of L30 communi- cation for two and three terminal applications.
  • Page 105 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 L30 Line Current Differential System 3-41...
  • Page 106 Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the follow- ing figure. Figure 3–43: STATUS LEDS The clock configuration LED status is as follows: • Flashing green — loop timing mode while receiving a valid data packet 3-42 L30 Line Current Differential System GE Multilin...
  • Page 107 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 L30 Line Current Differential System 3-43...
  • Page 108 3.3 PILOT CHANNEL COMMUNICATIONS 3 HARDWARE 3-44 L30 Line Current Differential System GE Multilin...
  • Page 109: Introduction

    In online mode, you can communicate with the device in real-time. The EnerVista UR Setup software is provided with every L30 relay and runs on Microsoft Windows XP, 7, and Server 2008. This chapter provides a summary of the basic EnerVista UR Setup software interface features. The EnerVista UR Setup Help File provides details for getting started and using the EnerVista UR Setup software interface.
  • Page 110 Site List window are automatically sent to the online communicating device. g) FIRMWARE UPGRADES The firmware of a L30 device can be upgraded, locally or remotely, via the EnerVista UR Setup software. The correspond- ing instructions are provided by the EnerVista UR Setup Help file under the topic “Upgrading Firmware”.
  • 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 L30 Line Current Differential System...
  • Page 112: Settings Templates

    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. L30 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 L30 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 L30 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 L30 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. L30 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 L30 Line Current Differential System...
  • Page 118: Settings File Traceability

    When a settings file is transferred to a L30 device, the date, time, and serial number of the L30 are sent back to EnerVista UR Setup and added to the settings file on the local PC. This infor- mation can be compared with the L30 actual values at any later date to determine if security has been compromised.
  • Page 119 4.2 EXTENDED ENERVISTA UR SETUP FEATURES The transfer date of a setting file written to a L30 is logged in the relay and can be viewed via EnerVista UR Setup or the front panel display. Likewise, the transfer date of a setting file saved to a local PC is logged in EnerVista UR Setup.
  • Page 120 ONLINE DEVICE TRACEABILITY INFORMATION The L30 serial number and file transfer date are available for an online device through the actual values. Select the Actual Values > Product Info > Model Information menu item within the EnerVista UR Setup online window as shown in the example below.
  • Page 121: Faceplate

    The following figure shows the horizontal arrange- ment of the faceplate panels. Figure 4–16: UR-SERIES STANDARD HORIZONTAL FACEPLATE PANELS GE Multilin L30 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 L30 Line Current Differential System GE Multilin...
  • Page 123 Support for applying a customized label beside every LED is provided. Default labels are shipped in the label pack- age of every L30, together with custom templates. The default labels can be replaced by user-printed labels. User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators.
  • Page 124 User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators. Refer to the User-programmable LEDs section in chapter 5 for the settings used to program the operation of the LEDs on these panels. 4-16 L30 Line Current Differential System GE Multilin...
  • Page 125: Custom Labeling Of Leds

    EnerVista UR Setup software is installed and operational • The L30 settings have been saved to a settings file • The L30 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 Enter the text to appear next to each LED and above each user-programmable pushbuttons in the fields provided. Feed the L30 front panel label cutout sheet into a printer and press the Print button in the front panel report window.
  • Page 127 4.3 FACEPLATE INTERFACE Bend the tab at the center of the tool tail as shown below. The following procedure describes how to remove the LED labels from the L30 enhanced front panel and insert the custom labels. 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.
  • Page 128 Slide the new LED label inside the pocket until the text is properly aligned with the LEDs, as shown below. The following procedure describes how to remove the user-programmable pushbutton labels from the L30 enhanced front panel and insert the custom labels.
  • 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 L30 Line Current Differential System 4-21...
  • Page 130: Display

    INTRODUCTION The L30 can interface with associated circuit breakers. In many cases the application monitors the state of the breaker, that can be presented on faceplate LEDs, along with a breaker trouble indication. Breaker operations can be manually initiated from faceplate keypad or automatically initiated from a FlexLogic operand.
  • Page 131: Menus

    Press the MENU key to select a header display page (top-level menu). The header title appears momentarily followed by a header display page menu item. Each press of the MENU key advances through the following main heading pages: • Actual values • Settings GE Multilin L30 Line Current Differential System 4-23...
  • Page 132 Pressing the MESSAGE DOWN key displays the second setting sub-header associ-  PROPERTIES ated with the Product Setup header.  Press the MESSAGE RIGHT key once more to display the first setting for Display FLASH MESSAGE Properties. TIME: 1.0 s 4-24 L30 Line Current Differential System GE Multilin...
  • Page 133: 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. GE Multilin L30 Line Current Differential System 4-25...
  • Page 134 The information in this section refers to password security. For information on how to set or change CyberSentry pass- words, see the Settings > Product Setup > Security > CyberSentry section in the next chapter. 4-26 L30 Line Current Differential System GE Multilin...
  • Page 135 By default, when an incorrect Command or Setting password has been entered via the faceplate interface three times within three minutes, the FlexLogic™ operand is set to “On” and the L30 does not allow settings or LOCAL ACCESS DENIED command level access via the faceplate interface for the next five minutes.
  • Page 136 4 HUMAN INTERFACES By default, when an incorrect Command or Setting password has been entered via any external communications interface three times within three minutes, the FlexLogic™ operand is set to and the L30 does not REMOTE ACCESS DENIED “ ”...
  • Page 137: Settings Menu

    See page 5-84.  SYSTEM SETUP   POWER SYSTEM See page 5-85.   SIGNAL SOURCES See page 5-86.   87L POWER SYSTEM See page 5-89.   BREAKERS See page 5-95.  GE Multilin L30 Line Current Differential System...
  • Page 138  DIGITAL ELEMENTS See page 5-218.   DIGITAL COUNTERS See page 5-221.   MONITORING See page 5-223.  ELEMENTS  SETTINGS  CONTACT INPUTS See page 5-234.  INPUTS / OUTPUTS  L30 Line Current Differential System GE Multilin...
  • Page 139 See page 5-255.  FORCE CONTACT See page 5-256.  INPUTS  FORCE CONTACT See page 5-257.  OUTPUTS  CHANNEL TESTS See page 5-258.   PMU See page 5-258.  TEST VALUES GE Multilin L30 Line Current Differential System...
  • Page 140: Introduction To Elements

    In more complex elements, a set of settings may be provided to define the range of the measured parameters which will cause the element to pickup. L30 Line Current Differential System GE Multilin...
  • Page 141: Introduction To Ac Sources

    Sources, in the context of L30 series relays, refer to the logical grouping of current and voltage signals such that one source contains all the signals required to measure the load or fault in a particular power apparatus. 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.
  • Page 142 CTs through which any portion of the current for the element being protected could flow. Auxiliary CTs are required to perform ratio matching if the ratios of the primary CTs to be summed are not identical. In the L30 relay, provisions have been included for all the current signals to be brought to the device where grouping, CT ratio correction, and summation are applied internally via configuration settings.
  • Page 143 Upon startup, the CPU configures the settings required to characterize the current and voltage inputs, and will display them in the appropriate section in the sequence of the banks (as described above) as follows for a maximum configuration: F1, F5, L1, L5, S1, and S5. GE Multilin L30 Line Current Differential System...
  • Page 144: Security

    To reset the unit after a lost password: Email GE customer service at multilin.tech@ge.com with the serial number and using a recognizable corporate email account. Customer service provides a code to reset the relay to the factory defaults.
  • Page 145 When entering a settings or command password via EnerVista or any serial interface, the user must enter the correspond- ing connection password. If the connection is to the back of the L30, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.
  • Page 146 When lockout occurs, the LOCAL ACCESS DENIED FlexLogic operands are set to “On”. These operands are returned to the “Off” state upon REMOTE ACCESS DENIED expiration of the lockout. 5-10 L30 Line Current Differential System GE Multilin...
  • Page 147 INVALID ATTEMPTS BEFORE LOCKOUT The L30 provides a means to raise an alarm upon failed password entry. Should password verification fail while accessing a password-protected level of the relay (either settings or commands), the FlexLogic operand is UNAUTHORIZED ACCESS asserted.
  • Page 148 It is disabled by default to allow the administrator direct access to the EnerVista software immediately after installation. When security is disabled, all users have administrator access. GE recommends enabling the EnerVista security before placing the device in service.
  • Page 149 Enter a username in the User field. The username must be 4 to 20 characters in length. Select the user access rights by enabling the check box of one or more of the fields. GE Multilin L30 Line Current Differential System 5-13...
  • Page 150 Deletes the user account when exiting the user management window Actual Values Allows the user to read actual values Settings Allows the user to read setting values Commands Allows the user to execute commands 5-14 L30 Line Current Differential System GE Multilin...
  • Page 151  screen. SETTINGS PRODUCT SETUP SECURITY SUPERVISORY Note that other protocols (DNP, 101, 103, 104, EGD) are not encrypted, and they are good communications options for SCADA systems when CyberSentry is enabled. GE Multilin L30 Line Current Differential System 5-15...
  • Page 152 5.2 PRODUCT SETUP 5 SETTINGS CYBERSENTRY SETTINGS THROUGH ENERVISTA CyberSentry security settings are configured under Device > Settings > Product Setup > Security. Figure 5–2: CYBERSENTRY SECURITY PANEL 5-16 L30 Line Current Differential System GE Multilin...
  • Page 153 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 GE Multilin L30 Line Current Differential System 5-17...
  • Page 154 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 5-18 L30 Line Current Differential System GE Multilin...
  • Page 155 This role can also be disabled, but only through a Supervisor authentication. When this role is disabled its permissions are assigned to the Administrator role. GE Multilin L30 Line Current Differential System 5-19...
  • Page 156 LOAD FACTORY DEFAULTS: This setting is used to reset all the settings, communication and security passwords. An Administrator role is used to change this setting and a Supervisor role (if not disabled) approves it. 5-20 L30 Line Current Differential System GE Multilin...
  • Page 157 Administrator if the Supervisor role is disabled. The Supervisor role enables this setting for the relay to start accepting setting changes or command changes or firmware upgrade. After all the setting changes are applied or com- mands executed, the Supervisor disables to lock setting changes. GE Multilin L30 Line Current Differential System 5-21...
  • Page 158 RADIUS server. Once both the RADIUS server and the parameters for connecting UR to the server have been configured, you can choose server authentication on the login screen of EnerVista. 5-22 L30 Line Current Differential System GE Multilin...
  • Page 159 Username — 255 chars maximum, but in the security log it is truncated to 20 characters IP address — Device IP address Role — 16 bit unsigned, of type format F617 ENUMERATION ROLE None Administrator Supervisor Engineer Operator Factory GE Multilin L30 Line Current Differential System 5-23...
  • Page 160: Display Properties

    DEFAULT MESSAGE TIMEOUT: If the keypad is inactive for a period of time, the relay automatically reverts to a default message. The inactivity time is modified via this setting to ensure messages remain on the screen long enough during programming or reading of actual values. 5-24 L30 Line Current Differential System GE Multilin...
  • Page 161 Some customers prefer very low currents to display as zero, while others prefer the current be displayed even when the value reflects noise rather than the actual signal. The L30 applies a cut- off value to the magnitudes and angles of the measured currents.
  • Page 162: Clear Relay Records

    Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user-programma- ble pushbuttons to clear specific records are typical applications for these commands. Since the L30 responds to rising edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.
  • Page 163: Communications

    ETHERNET NETWORK TOPOLOGY The L30 has three Ethernet ports. Each Ethernet port must belong to a different network or subnetwork. Configure the IP address and subnet to ensure that each port meets this requirement. Two subnets are different when the bitwise AND oper- ation performed between their respective IP address and mask produces a different result.
  • Page 164 EnerVista, and access to the public network shared on the same LAN. No redundancy is provided. Figure 5–4: NETWORK CONFIGURATION FOR SINGLE LAN Public Network SCADA EnerVista Software LAN1 ML3000 IP1/ MAC1 859708A2.vsd 5-28 L30 Line Current Differential System GE Multilin...
  • Page 165 LAN3, to which port 3 (P3) is connected. There is no redundancy. Figure 5–6: MULTIPLE LANS, NO REDUNDANCY Public Network SCADA EnerVista Software LAN1 LAN2 LAN3 ML3000 ML3000 ML3000 IP1/ IP2/ IP3/ MAC2 MAC3 MAC1 859710A2.vsd GE Multilin L30 Line Current Differential System 5-29...
  • Page 166 Port 3 is in standby mode and does not actively communicate on the Ethernet network but monitors its link to the Mul- tilink switch. If port 2 detects a problem with the link, communications is switched to Port 3. Port 3 is, in effect, acting as 5-30 L30 Line Current Differential System GE Multilin...
  • Page 167 Under normal circumstances both frames reach the destination and one of them is sent up the OSI stack to the destination application, while the second one is discarded. If an error occurs in one of the networks and GE Multilin L30 Line Current Differential System 5-31...
  • Page 168 The default route is used as the last choice when no other route towards a given destination is found. Range: Standard IPV4 unicast address format  IPV4 DEFAULT ROUTE GATEWAY ADDRESS  127.0.0.1 5-32 L30 Line Current Differential System GE Multilin...
  • Page 169 (RtGwy & Prt1Mask) == (Prt1IP & Prt1Mask) || (RtGwy & Prt2Mask) == (Prt2IP & Prt2Mask) || (RtGwy & Prt3Mask) == (Prt3IP & Prt3Mask) where & is the bitwise-AND operator == is the equality operator || is the logical OR operator GE Multilin L30 Line Current Differential System 5-33...
  • Page 170 PRT2 SUBNET IP MASK = 255.255.255.0 IPV4 DEFAULT ROUTE: GATEWAY ADDRESS = 10.1.1.1 STATIC NETWORK ROUTE 1: RT1 DESTINATION = 10.1.3.0/24; RT1 NET MASK = 255.255.255.0; and RT1 GATE- WAY = 10.1.2.1 5-34 L30 Line Current Differential System GE Multilin...
  • Page 171 This allows the EnerVista UR Setup software to be used on the port. The UR operates as a Modbus slave device only. When using Modbus protocol on the RS232 port, the L30 responds regardless of the pro- MODBUS SLAVE ADDRESS grammed.
  • Page 172 DNP POWER DEFAULT MESSAGE DEADBAND: 30000 Range: 0 to 100000000 in steps of 1 DNP ENERGY DEFAULT MESSAGE DEADBAND: 30000 Range: 0 to 100000000 in steps of 1 DNP PF DEFAULT MESSAGE DEADBAND: 30000 5-36 L30 Line Current Differential System GE Multilin...
  • Page 173 TIMEOUT: 120 s The L30 supports the Distributed Network Protocol (DNP) version 3.0. The L30 can be used as a DNP slave device con- nected to multiple DNP masters (usually an RTU or a SCADA master station). Since the L30 maintains two sets of DNP data change buffers and connection information, two DNP masters can actively communicate with the L30 at one time.
  • Page 174 DNP analog input points that are voltages will be returned with values 1000 times smaller (for example, a value of 72000 V on the L30 will be returned as 72). These settings are useful when analog input values must be adjusted to fit within cer- tain ranges in DNP masters.
  • Page 175 (for circuit breakers) or raise/lower (for tap changers) using a single control point. That is, the DNP master can operate a single point for both trip and close, or raise and lower, operations. The L30 can be configured to sup- port paired control points, with each paired control point operating two virtual inputs.
  • Page 176 60870-5-104 point lists must be in one continuous block, any points assigned after the first “Off” point are ignored. NOTE Changes to the DNP / IEC 60870-5-104 point lists will not take effect until the L30 is restarted. NOTE k) IEC 61850 PROTOCOL ...
  • Page 177 The L30 supports the Manufacturing Message Specification (MMS) protocol as specified by IEC 61850. MMS is supported over two protocol stacks: TCP/IP over Ethernet. The L30 operates as an IEC 61850 server. The Remote inputs and outputs section in this chapter describe the peer-to-peer GSSE/GOOSE message scheme.
  • Page 178 DESTINATION MAC address; the least significant bit of the first byte must be set. In L30 releases previous to 5.0x, the destination Ethernet MAC address was determined automatically by taking the sending MAC address (that is, the unique, local MAC address of the L30) and setting the multicast bit.
  • Page 179 The L30 has the ability of detecting if a data item in one of the GOOSE datasets is erroneously oscillating. This can be caused by events such as errors in logic programming, inputs improperly being asserted and de-asserted, or failed station components.
  • Page 180 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. 5-44 L30 Line Current Differential System GE Multilin...
  • Page 181 MMXU1 HZ DEADBAND change greater than 45 mHz, from the previous MMXU1.MX.mag.f value, in the source frequency. The L30 must be rebooted (control power removed and re-applied) before these settings take effect. The following procedure illustrates the reception configuration. Configure the reception dataset by making the following changes in the ...
  • Page 182 IEC61850 GOOSE ANALOG INPUT 1 UNITS The GOOSE analog input 1 can now be used as a FlexAnalog value in a FlexElement or in other settings. The L30 must be rebooted (control power removed and re-applied) before these settings take effect.
  • Page 183 DNA and UserSt bit pairs that are included in GSSE messages. To set up a L30 to receive a configurable GOOSE dataset that contains two IEC 61850 single point status indications, the following dataset items can be selected (for example, for configurable GOOSE dataset 1): “GGIO3.ST.Ind1.stVal” and “GGIO3.ST.Ind2.stVal”.
  • Page 184 CPU resources. When server scanning is disabled, there is no updating of the IEC 61850 logical node status values in the L30. Clients are still able to connect to the server (L30 relay), but most data values are not updated. This set- ting does not affect GOOSE/GSSE operation.
  • Page 185 (_) character, and the first character in the prefix must be a letter. This conforms to the IEC 61850 standard. Changes to the logical node prefixes will not take effect until the L30 is restarted. The main menu for the IEC 61850 MMXU deadbands is shown below.
  • Page 186 The GGIO2 control configuration settings are used to set the control model for each input. The available choices are “0” (status only), “1” (direct control), and “2” (SBO with normal security). The GGIO2 control points are used to control the L30 virtual inputs.
  • Page 187 GGIO1 (binary status values). The settings allow the selection of FlexInteger values for each GGIO5 integer value point. It is intended that clients use GGIO5 to access generic integer values from the L30. Additional settings are provided to allow the selection of the number of integer values available in GGIO5 (1 to 16), and to assign FlexInteger values to the GGIO5 integer inputs.
  • Page 188 ITEM 64 attributes supported by the L30. Changes to the dataset will only take effect when the L30 is restarted. It is recommended to use reporting service from logical node 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.
  • Page 189 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. GE Multilin L30 Line Current Differential System 5-53...
  • Page 190 Since GSSE/GOOSE messages are multicast Ethernet by specification, they are 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 5-54 L30 Line Current Differential System GE Multilin...
  • Page 191 Menu”. Web pages are available showing DNP and IEC 60870-5-104 points lists, Modbus registers, event records, fault reports, and so on. First connect the UR and a computer to an Ethernet network, then enter the IP address of the L30 into the “Address”...
  • Page 192 ENABLED: No The L30 supports the IEC 60870-5-104 protocol. The L30 can be used as an IEC 60870-5-104 slave device connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the L30 maintains two sets of IEC 60870-5-104 data change buffers, no more than two masters should actively communicate with the L30 at one time.
  • Page 193: Modbus User Map

    “1”. An address value of “0” in the initial register means “none” and values of “0” display for all registers. Different values can be entered as required in any of the register positions. ADDRESS GE Multilin L30 Line Current Differential System 5-57...
  • Page 194: Real Time Clock

    Precision Time Protocol (PTP), IRIG-B, or SNTP, its accuracy approaches that of the synchroniz- ing time delivered to the relay. When the L30/L90 channel asymmetry function is used, the relay’s real time clock must be synchronized to an external time source using PTP or IRIG-B, typically from a global positioning system (GPS) receiver.
  • Page 195 Each network device implementing PP measures the processing delay it introduces in each time message and compensates for this delay in the time it transmits. As a result, the time delivered to end-devices such as the UR are GE Multilin L30 Line Current Differential System 5-59...
  • Page 196 A setting can be chosen that will reduce worst-case error to half of the range between minimum and maximum uncompensated delay, if these values are known. 5-60 L30 Line Current Differential System GE Multilin...
  • Page 197 L30 clock is closely synchronized with the SNTP/NTP server. It takes up to two minutes for the L30 to signal an SNTP self-test error if the server is offline.
  • Page 198 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. 5-62 L30 Line Current Differential System GE Multilin...
  • Page 199: Fault Reports

    MESSAGE Z0 ANGLE: 75° The L30 relay supports one fault report and an associated fault locator. The signal source and trigger condition, as well as the characteristics of the line or feeder, are entered in this menu. The fault report stores data, in non-volatile memory, pertinent to an event when triggered. The captured data contained in the FaultReport.txt file includes:...
  • Page 200 It should be kept in mind that grounding points in vicinity of the installation impact the system zero-sequence impedance (grounded loads, reactors, zig-zag transformers, shunt capacitor banks, etc.). 5-64 L30 Line Current Differential System GE Multilin...
  • Page 201: Oscillography

    Reducing the sampling rate allows longer records to be stored. This setting has no effect on the internal sampling rate of the relay which is always 64 samples per cycle; that is, it has no effect on the fundamental calculations of the device. GE Multilin L30 Line Current Differential System 5-65...
  • Page 202 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. 5-66 L30 Line Current Differential System GE Multilin...
  • Page 203: 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 L30 Line Current Differential System 5-67...
  • Page 204: User-programmable Leds

    LED TEST    PATH: SETTINGS PRODUCT SETUP USER-PROGRAMMABLE LEDS LED TEST Range: Disabled, Enabled.  LED TEST LED TEST FUNCTION:  Disabled Range: FlexLogic operand LED TEST CONTROL: MESSAGE 5-68 L30 Line Current Differential System GE Multilin...
  • Page 205 (one LED on at a time) control input rising edge of the Wait 1 second control input rising edge STAGE 3 of the control (one LED off at a time) input 842011A1.CDR Figure 5–9: LED TEST SEQUENCE GE Multilin L30 Line Current Differential System 5-69...
  • Page 206 LED column 2: user-programmable LEDs 1 through 12 • LED column 3: user-programmable LEDs 13 through 24 • LED column 4: user-programmable LEDs 25 through 36 • LED column 5: user-programmable LEDs 37 through 48 5-70 L30 Line Current Differential System GE Multilin...
  • Page 207: User-programmable Self-tests

    Range: Disabled, Enabled. SFP MODULE FAIL MESSAGE FUNCTION: Disabled All major self-test alarms are reported automatically with their corresponding FlexLogic operands, events, and targets. Most of the minor alarms can be disabled if desired. GE Multilin L30 Line Current Differential System 5-71...
  • Page 208: Control Pushbuttons

    The location of the control pushbuttons are shown in the following figures. Control pushbuttons 842813A1.CDR Figure 5–10: CONTROL PUSHBUTTONS (ENHANCED FACEPLATE) An additional four control pushbuttons are included on the standard faceplate when the L30 is ordered with the twelve user- programmable pushbutton option. STATUS EVENT CAUSE...
  • Page 209 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 GE Multilin L30 Line Current Differential System 5-73...
  • Page 210: 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. 5-74 L30 Line Current Differential System GE Multilin...
  • Page 211 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 GE Multilin L30 Line Current Differential System 5-75...
  • Page 212 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. 5-76 L30 Line Current Differential System GE Multilin...
  • Page 213 “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. GE Multilin L30 Line Current Differential System 5-77...
  • Page 214 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) 5-78 L30 Line Current Differential System GE Multilin...
  • Page 215 User-programmable pushbuttons require a type HP or HQ faceplate. If an HP or HQ type faceplate was ordered separately, the relay order code must be changed to indicate the correct faceplate option. This can be done via EnerVista UR Setup with the Maintenance > Enable Pushbutton command. NOTE GE Multilin L30 Line Current Differential System 5-79...
  • Page 216: Flex State Parameters

    • USER-PROGRAMMABLE CONTROL INPUT: The user-definable displays also respond to the INVOKE AND SCROLL setting. Any FlexLogic operand (in particular, the user-programmable pushbutton operands), can be used to navigate the programmed displays. 5-80 L30 Line Current Differential System GE Multilin...
  • Page 217 (setting, actual value, or command) which has a Modbus address, to view the hexadecimal form of the Modbus address, then manually convert it to decimal form before entering it (EnerVista UR Setup usage conveniently facilitates this conversion). GE Multilin L30 Line Current Differential System 5-81...
  • Page 218: Installation

    "Programmed" state. UNIT NOT PROGRAMMED setting allows the user to uniquely identify a relay. This name will appear on generated reports. RELAY NAME 5-82 L30 Line Current Differential System GE Multilin...
  • Page 219: Remote Resources Configuration

    Bricks. Remote resources settings configure the point-to-point connection between specific fiber optic ports on the L30 process card and specific Brick. The relay is then configured to measure spe- cific currents, voltages and contact inputs from those Bricks, and to control specific outputs.
  • Page 220: Ac Inputs

    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). 5-84 L30 Line Current Differential System GE Multilin...
  • Page 221: P