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GE Digital Energy L60 Instruction Manual

Line phase comparison system
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GE
Digital Energy
L60
Line Phase Comparison System
Instruction Manual
Product version: 7.3x
GE publication code: 1601-0082-AB2 (GEK-119622A)
E83849
LISTED
IND.CONT. EQ.
52TL
1601-0082-AB2

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Summary of Contents for GE Digital Energy L60

  • Page 1 Digital Energy Line Phase Comparison System Instruction Manual Product version: 7.3x GE publication code: 1601-0082-AB2 (GEK-119622A) E83849 LISTED IND.CONT. EQ. 52TL 1601-0082-AB2...
  • Page 2 Copyright © 2015 GE Multilin Inc. All rights reserved. L60 Line Phase Comparison System Instruction Manual for version 7.3x. L60, FlexLogic, FlexElement, FlexCurve, FlexAnalog, FlexInteger, FlexState, EnerVista, CyberSentry, HardFiber, Digital Energy, Multilin, and GE Multilin are trademarks or registered trademarks of GE Multilin Inc.

  • Page 3: Table Of Contents

    Unpack and inspect ..................3-1 Panel cutouts ....................3-2 3.2.1 Horizontal units ........................3-2 3.2.2 Vertical units..........................3-3 3.2.3 Rear terminal layout ......................3-8 Wiring ......................... 3-9 3.3.1 Typical wiring ........................... 3-9 3.3.2 Dielectric strength........................3-9 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 4 4.2.5 Changing settings........................ 4-14 4.2.6 Faceplate ..........................4-15 4.2.7 LED indicators........................4-17 4.2.8 Custom LED labeling ......................4-20 4.2.9 Breaker control ........................4-25 4.2.10 Change passwords ......................4-26 4.2.11 Invalid password entry...................... 4-27 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 5 Power swing detect (ANSI 68)..................5-197 5.6.7 Load encroachment ......................5-206 5.6.8 Phase current........................5-207 5.6.9 Neutral current........................5-219 5.6.10 Wattmetric ground fault ....................5-227 5.6.11 Ground current........................5-231 5.6.12 Negative sequence current..................5-234 5.6.13 Breaker failure (ANSI 50BF) ...................5-240 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 6 6.2.15 Real time clock synchronizing ..................6-7 6.2.16 Direct inputs ..........................6-8 6.2.17 Direct devices status ......................6-8 6.2.18 Teleprotection channel tests.....................6-8 6.2.19 Remaining connection status ...................6-9 6.2.20 Parallel Redundancy Protocol (PRP) ................6-9 Metering ......................6-10 6.3.1 Metering conventions ......................6-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 7 POTT signaling scheme ................. 8-11 8.3.1 Overview...........................8-11 Series compensated lines ................8-12 8.4.1 Distance settings........................8-12 Understanding L60 oscillography ............... 8-14 8.5.1 Overview...........................8-14 8.5.2 Two-breaker configuration....................8-15 9 THEORY OF Overview ......................9-1 OPERATION 9.1.1 Introduction ..........................9-1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 8 10.9 Storage ......................10-13 10.10Disposal......................10-13 A FLEXANALOG A.1 FlexAnalog items .....................A-1 OPERANDS B RADIUS SERVER B.1 RADIUS server configuration .................B-1 CONFIGURATION C MISCELLANEOUS C.1 Warranty ......................C-1 C.2 Revision history ....................C-1 ABBREVIATIONS INDEX viii L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 9: Introduction

    Ensure that the control power applied to the device, the AC current, and voltage input match the ratings specified on the relay nameplate. Do not apply current or voltage in excess of the specified limits. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 10: For Further Assistance

    Worldwide telephone: +1 905 927 7070 Europe/Middle East/Africa telephone: +34 94 485 88 54 North America toll-free: 1 800 547 8629 Fax: +1 905 927 5098 Worldwide e-mail: multilin.tech@ge.com Europe e-mail: multilin.tech.euro@ge.com Website: http://www.gedigitalenergy.com/multilin L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 11: Product Description

    2.1 Product description The L60 Line Phase Comparison System is part of the Universal Relay (UR) series of products. It provides a simple phase- comparison principle successfully employed by analog and static relays for many years, along with the significant advantages of a modern microprocessor-based relay.
  • Page 12 Rx1N Tx1N SECOND CHANNEL FOR DUAL COMPARISON TYPICAL 2-TERMINAL APPLICATION Tx1P Rx1P Rx1P Tx1P BATT+ BATT+ L60 - 1 L60 - 2 BATT- BATT- Tx1N Rx1N Rx1N Tx1N TYPICAL 3-TERMINAL APPLICATION 831788A1.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 13 CHAPTER 2: PRODUCT DESCRIPTION PRODUCT DESCRIPTION The L60 uses flash memory technology that allows field upgrading as new features are added. Firmware and software are upgradable. The following single-line diagram illustrates the relay functionality using American National Standards Institute (ANSI) device numbers.

  • Page 14: Security

    The L60 supports password entry from a local or remote connection. Local access is defined as any access to settings or commands via the faceplate interface. This includes both keypad entry and the through the faceplate RS232 port. Remote access is defined as any access to settings or commands via any rear communications port.
  • Page 15 When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password applies.
  • Page 16 |--------------- Flex state Parameters |--------------- User-Definable Displays |--------------- Direct I/O |--------------- Teleprotection |--------------- Installation |---------- System Setup |---------- FlexLogic |---------- Grouped Elements |---------- Control Elements |---------- Inputs / Outputs |--------------- Contact Inputs L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 17 UR, if the user ID credential does not match one of the five local accounts, the UR forwards automatically the request to a RADIUS server when one is provided. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 18: Order Codes

    Module options are specified at the time of ordering. The L60 is specified with two CT/VT modules (8F and 8P). When the L60 is applied in two-breaker configurations (such as breaker-and-a-half or ring configurations), the currents from the two CTs are summed internally within the relay or externally.
  • Page 19 7Q Channel 1 - G.703; Channel 2 - 1300 nm, single-mode Laser G.703, 1 Channel G.703, 2 Channels RS422, 1 Channel 7W RS422, 2 Channels Table 2-5: L60 order codes for reduced-size vertical units - * ** - * * * - F ** - H **...
  • Page 20 1300 nm, single-mode, ELED, 2 Channels 1300 nm, single-mode, Laser, 2 Channels Channel 1 - RS422; Channel 2 - 820 nm, multimode, LED 7M Channel 1 - RS422; Channel 2 - 1300 nm, multimode, LED 2-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 21: 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 apply to the L60 relay. The modules specified in the order codes for the L60 are available as replacement modules for the L60.
  • Page 22 IEEE C37.94, 820 nm, 64 kbps, multimode, LED, 2 Channels 820 nm, multimode, LED, 1 Channel 1300 nm, multimode, LED, 1 Channel 1300 nm, single-mode, ELED, 1 Channel 1300 nm, single-mode, Laser, 1 Channel 2-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 23: Signal Processing

    (when applicable), and auxiliary voltages. The 2.4 kHz cut-off frequency applies to both 50 Hz and 60 Hz applications and fixed in the hardware, and thus is not dependent on the system nominal frequency setting. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-13...
  • Page 24 Time Overcurrent function, if the latter is intended for thermal protection. The true RMS is calculated as per the widely accepted definition:  t ( ) t d Eq. 2-3 RMS t ( ) – 2-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 25: Specifications

    (IEDs) or power system devices via communications or different output contacts. If not specified, the operate times given here are for a 60 Hz system at nominal system frequency. Operate times for a 50 Hz system are 1.2 times longer. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-15...
  • Page 26 0.050 to 30.000 pu in steps of 0.001 Dropout: 97 to 98% Memory duration: 5 to 25 cycles in steps of 1 VT location: all delta-wye and wye-delta transformers CT location: all delta-wye and wye-delta transformers 2-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 27 ±1.5% of reading > 2.0 × CT rating Curve shapes: IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse, Short/Very/ Extremely Inverse; I t; FlexCurves™ (programmable); Definite Time (0.01 s base curve) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-17...
  • Page 28 Characteristic angle: 0 to 359 in steps of 1 Angle accuracy: ±2° Operation time (FlexLogic operands): Tripping (reverse load, forward fault): <12 ms, typically Blocking (forward load, reverse fault): <8 ms, typically 2-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 29 Time dial = 0.00 to 600.00 in steps of 0.01 Curve timing accuracy at <0.90 x pickup: ±3.5% of operate time or ±1/2 cycle (whichever is greater) from pickup to operate L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-19...
  • Page 30 BREAKER ARCING CURRENT Principle: accumulates breaker duty (I t) and measures fault duration Initiation: programmable per phase from any FlexLogic operand Compensation for auxiliary relays: 0 to 65.535 s in steps of 0.001 2-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 31 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) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-21...

  • Page 32: User-Programmable Elements

    Operate points: 80 (1 through 20 of pickup) Time delay: 0 to 65535 ms in steps of 1 FLEX STATES Number: up to 256 logical variables grouped under 16 Modbus addresses 2-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 33 Time-out timer: 3.0 to 60.0 s in steps of 0.1 Control inputs: step-up and 3-bit Power-up mode: restore from non-volatile memory or synchronize to a 3-bit control input or synch/restore mode L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-23...

  • Page 34: Monitoring

    RELAY ACCURACY + (1.5%) %error 2.5.4 Metering RMS CURRENT: PHASE, NEUTRAL, AND GROUND Accuracy at 0.1 to 2.0 × CT rating: ±0.25% of reading or ±0.1% of rated (whichever is greater) 2-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 35: Inputs

    1.00 to 24000.00 Relay burden: < 0.25 VA at 120 V Conversion range: 1 to 275 V Voltage withstand: continuous at 260 V to neutral 1 min/hr at 420 V to neutral L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-25...
  • Page 36 CRC: 32-bit CRC alarm: Responding to: Rate of messages failing the CRC Monitoring message count: 10 to 10000 in steps of 1 Alarm threshold: 1 to 1000 in steps of 1 2-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 37: Power Supply

    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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-27...
  • Page 38 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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 39: Communication Protocols

    19.2 or 115.2 kbps, Modbus RTU RS485 1 rear port: up to 115 kbps, Modbus RTU, DNP 3, IEC 60870-5-103 Typical distance: 1200 m Isolation: 2 kV, isolated together at 36 Vpk L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-29...

  • Page 40: Inter-Relay Communications

    Interface type Typical distance RS422 1200 m G.703 100 m RS422 distance is based on transmitter power and does not take into consideration the clock source provided by the user. NOTE 2-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 41 820 nm LED, Multimode –7.6 dBm 1300 nm LED, Multimode –11 dBm 1300 nm ELED, Single mode –14 dBm 1300 nm Laser, Single mode –14 dBm 1550 nm Laser, Single mode –14 dBm L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-31...

  • Page 42: Environmental

    95% (non-condensing) at 55°C (as per IEC60068-2-30 variant 1, 6 days) OTHER Altitude: 2000 m (maximum) Pollution degree: Overvoltage category: Ingress protection: IP20 front, IP10 back Noise: 0 dB 2-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 43: Type Tests

    Insulation: class 1, Pollution degree: 2, Over voltage cat II 1 Not tested by third party. 2.5.12 Production tests THERMAL Products go through an environmental test based upon an Accepted Quality Level (AQL) sampling process. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 2-33...

  • Page 44: Approvals

    Normally, cleaning is not required. When dust has accumulated on the faceplate display, wipe with a dry cloth. To avoid deterioration of electrolytic capacitors, power up units that are stored in a de-energized state once per year, for one hour continuously. 2-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 45: Installation

    For any issues, contact GE Digital Energy as outlined in the For Further Assistance section in chapter 1. Check that you have the latest copy of the L60 Instruction Manual and the UR Series Communications Guide, for the applicable firmware version, at http://gedigitalenergy.com/multilin/manuals/index.htm...

  • Page 46: Panel Cutouts

    Category II, which means installation in an office, laboratory, or testing environment. 3.2.1 Horizontal units The L60 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 47: Vertical Units

    3.2.2 Vertical units The L60 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 48 RS232 communications port. The relay is secured to the panel with the use of four screws supplied with the relay. Figure 3-4: Vertical dimensions (enhanced panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 49 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-5: Vertical and mounting dimensions (standard panel) For side-mounting L60 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 50 PANEL CUTOUTS CHAPTER 3: INSTALLATION For side-mounting L60 devices with the standard front panel, use the following figures. Figure 3-6: Vertical side-mounting installation (standard panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 51 CHAPTER 3: INSTALLATION PANEL CUTOUTS Figure 3-7: Vertical side-mounting rear dimensions (standard panel) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 52: Rear Terminal Layout

    (nearest to CPU module), indicated by an arrow marker on the terminal block. The figure shows an example of rear terminal assignments. Figure 3-8: Example of modules in F and H slots L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 53: Wiring

    3.3.2 Dielectric strength Dielectric strength is the maximum electric strength that can be sustained without breakdown. It is measured in volts. The table shows the dielectric strength of the UR-series module hardware. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 54: Control Power

    The power supply module can be ordered for two possible voltage ranges, and the L60 can be ordered with or without a redundant power supply module option. Each range has a dedicated input connection for proper operation. The ranges are as follows (see the Specifications section of chapter 2 for details): •...

  • Page 55: Ct/Vt Modules

    The phase voltage channels are used for most metering and protection purposes. The auxiliary voltage channel is used as input for the synchrocheck and volts-per-hertz features, which are optional features available for some UR models. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-11...

  • Page 56: Contact Inputs And Outputs

    WIRING CHAPTER 3: INSTALLATION The L60 uses a special CT/VT module not available on other UR-series relays. This type 8P module has four current inputs and special communications inputs/outputs for interfacing with PLCs. The communications interface requires an external DC source (station battery) to drive inputs/outputs as shown in the L60 Channel Communications section in this chapter.
  • Page 57 Where a tilde “~” symbol appears, substitute the slot position of the module. Where a number sign “#” appears, substitute the contact number. NOTE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-13...
  • Page 58 ~6a, ~6c 2 Inputs Fast Form-C ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs ~7a, ~7c 2 Inputs Fast Form-C ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs ~8a, ~8c 2 Inputs 3-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 59 ~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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-15...
  • Page 60 WIRING CHAPTER 3: INSTALLATION Figure 3-13: Contact input and output module wiring (Sheet 1 of 2) 3-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 61 CHAPTER 3: INSTALLATION WIRING Figure 3-14: Contact input and output module wiring (Sheet 2 of 2) For proper functionality, observe the polarity shown in the figures for all contact input and output connections. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-17...
  • Page 62 The contact inputs with auto-burnish create a high current impulse when the threshold is reached to burn off this oxidation layer as a maintenance to the contacts. Afterwards the contact input current is reduced to a steady-state current. The impulse has a five-second delay after a contact input changes state. 3-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 63: Transducer Inputs And Outputs

    Transducer input modules can receive input signals from external DCmA output transducers (DCmA In) or resistance temperature detectors (RTDs). Hardware and software are provided to receive signals from these external transducers and convert these signals into a digital format for use as required. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-19...
  • Page 64 (5A, 5C, 5D, 5E, and 5F) and channel arrangements that can be ordered for the relay. Where a tilde “~” symbol appears, substitute the slot position of the module. NOTE Figure 3-18: Transducer input/output module wiring The following figure show how to connect RTDs. 3-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 65: Rs232 Faceplate Port

    The baud rate for this port can be set, with a default of 115200 bps. Figure 3-20: RS232 faceplate port connection 3.3.8 CPU communication ports 3.3.8.1 Overview In addition to the faceplate RS232 port, there is a rear RS485 communication port. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-21...
  • Page 66 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 L60 COM terminal (#3); others function correctly only if the common wire is connected to the L60 COM terminal, but insulated from the shield.

  • Page 67: 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 L60 operates an internal oscillator with 1 µs resolution and accuracy.

  • Page 68: L60 Channel Communications

    L60 channel communications 3.3.10 As described earlier in this chapter, L60 communication channels reside on the special CT/VT module (type 8P). This module allows for all possible 87PC scheme combinations (such as dual phase comparison or single-phase comparison, two- terminal or three-terminal applications) in one module. The scheme can be upgraded or changed at any time. The L60 channel interface requires an external battery to drive inputs and outputs.
  • Page 69 CHAPTER 3: INSTALLATION WIRING Figure 3-24: L60 to PLC connections for a two-terminal line The communications circuitry has the following characteristics for the transmitter and receiver. 3.3.10.1 Transmitter characteristics • Operating voltage range — 0 to 300 V DC (typical points: 15 V, 48 V, 125 V, 250 V) •...

  • Page 70: Direct Input And Output Communications

    UR1-Tx1 to UR2-Rx1, UR2-Tx1 to UR3-Rx1, UR3-Tx1 to UR4-Rx1, and UR4-Tx1 to UR1-Rx1 for the first ring; and UR1-Tx2 to UR4-Rx2, UR4-Tx2 to UR3-Rx2, UR3-Tx2 to UR2-Rx2, and UR2-Tx2 to UR1-Rx2 for the second ring. 3-26 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 71 Those that apply depend on options purchased. The options are outlined in the Inter-Relay Communications section of the Order Code tables in Chapter 2. All of the fiber modules use ST type connectors. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-27...

  • Page 72: Fiber: Led And Eled Transmitters

    The following figure shows the configuration for the 72, 73, 7D, and 7K fiber-laser modules. Figure 3-29: 7x Laser fiber modules The following figure shows configuration for the 2I and 2J fiber-laser modules. 3-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 73: Interface

    The following figure shows the typical pin interconnection between two G.703 interfaces. For the actual physical arrangement of these pins, see the Rear Terminal Layout section earlier in this chapter. All pin interconnections are to be maintained for a connection to a multiplexer. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-29...
  • Page 74 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 inserted fully. 3-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 75 (S1 = ON) and set timing mode to loop timing (S5 = OFF and S6 = OFF). The switch settings for the internal and loop timing modes are shown. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-31...
  • Page 76 One source lies on the G.703 line side of the interface while the other lies on the differential Manchester side of the interface. Figure 3-36: G.703 dual loopback mode DMR = Differential Manchester Receiver DMX = Differential Manchester Transmitter G7X = G.703 Transmitter G7R = G.703 Receiver 842775A1.CDR 3-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 77: Rs422 Interface

    1 are also paralleled to the terminal timing inputs of data module 2. By using this configuration, the timing for both data modules and both UR RS422 channels are derived from a single clock L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-33...
  • Page 78 831022A3.CDR Data module 1 provides timing to the L60 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 because they vary by manufacturer.

  • Page 79: Rs422 And Fiber Interface

    G.703 and fiber interfaces. When using a laser interface, attenuators can be necessary to ensure that you do not exceed the maximum optical input power to the receiver. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-35...

  • Page 80: Ieee C37.94 Interface

    The UR-series C37.94 communication module can be connected to the electrical interface (G.703, RS422, or X.21) of a non- compliant digital multiplexer via an optical-to-electrical interface converter that supports the IEEE C37.94 standard. The following figure shows the concept. 3-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 81 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 L60 communication for two and three terminal applications.
  • Page 82 Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure. Figure 3-47: Status LEDs The clock configuration LED status is as follows: • Flashing green — loop timing mode while receiving a valid data packet 3-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 83: 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 L60 communication for two and three terminal applications.
  • Page 84 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 inserted fully. 3-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 85 Modules shipped since January 2012 have status LEDs that indicate the status of the DIP switches, as shown in the following figure. Figure 3-50: Status LEDs The clock configuration LED status is as follows: • Flashing green — loop timing mode while receiving a valid data packet L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-41...

  • Page 86: Activate Relay

    RELAY SETTINGS: NEW SETTING Not Programmed Programmed HAS BEEN STORED When the "NEW SETTING HAS BEEN STORED" message appears, the relay is in "Programmed" state and the "In Service" LED turns on. 3-42 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 87: Install Software

    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 L60 rear communications port. The converter terminals (+, –, GND) are connected to the L60 communication module (+, –, COM) terminals. See the CPU Communication Ports section in chapter 3 for details.

  • Page 88: System 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 compatible with the L60 and the EnerVista software: • US Robotics external 56K FaxModem 5686 •...

  • Page 89: Configure The L60 For Software Access

    3.7 Configure the L60 for software access You connect remotely to the L60 through the rear RS485 or Ethernet port with a computer running the EnerVista UR Setup software. The L60 also can be accessed locally with a computer through the front panel RS232 port or the rear Ethernet port using the Quick Connect feature.

  • Page 90: Configure Serial Communication

     PRODUCT SETUP  COMMUNICATIONS  MODBUS PROTOCOL  MODBUS SLAVE ADDRESS fields. 10. Click the Read Order Code button to connect to the L60 and upload the order code to the software. If a communications error occurs, ensure that the EnerVista UR Setup serial communications values entered in the previous step correspond to the relay setting values.

  • Page 91: Configure Ethernet Communication

     PRODUCT SETUP  COMMUNICATIONS MODBUS PROTOCOL 11. Click the Read Order Code button to connect to the L60 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 92: Automatic Discovery Of Ur Devices

    To access the relay in EnerVista: Open the Settings > Product Setup > Display Properties window as shown. The window opens with a status indicator on the lower left of the EnerVista UR Setup window. 3-48 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 93: Use Quick Connect Via The Front Panel Rs232 Port

    The following quick action functions are available: • View the event record • View the last recorded oscillography record • View the status of all L60 inputs and outputs • View all of the L60 metering values • View the L60 protection summary •...

  • Page 94: Use Quick Connect Via A Rear Ethernet Port

    3.8.3 Use Quick Connect via a rear Ethernet port To use the Quick Connect feature to access the L60 from a computer through Ethernet, first assign an IP address to the relay using the front panel keyboard. Press the key until the menu displays.
  • Page 95 CHAPTER 3: INSTALLATION CONNECT TO THE L60 connections window. 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. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-51...
  • Page 96 CHAPTER 3: INSTALLATION Click the “Use the following IP address” box. Enter an IP address with the first three numbers the same as the IP address of the L60 relay and the last number different (in this example, 1.1.1.2). Enter a subnet mask equal to the one set in the L60 (in this example, 255.0.0.0).
  • Page 97 If this computer is used to connect to the Internet, re-enable any proxy server settings after the computer has been disconnected from the L60 relay. Start the Internet Explorer software. Select the UR device from the EnerVista Launchpad to start EnerVista UR Setup. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-53...
  • Page 98 Click the Quick Connect button to open the window. Select the Ethernet interface and enter the IP address assigned to the L60, then click the Connect button. The EnerVista UR Setup software creates a site named “Quick Connect” with a corresponding device also named “Quick Connect”...

  • Page 99: Set Up Cybersentry And Change Default Password

    If using EnerVista, navigate to Settings > Product Setup > Security. Change the Local Administrator Password, for example. 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. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 3-55...
  • Page 100 SET UP CYBERSENTRY AND CHANGE DEFAULT PASSWORD CHAPTER 3: INSTALLATION Figure 3-62: Changing the default password 3-56 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 101: Interfaces

    The EnerVista UR Setup software is provided with every L60. This chapter outlines the EnerVista software interface features. The EnerVista UR Setup Help File also provides details for getting started and using the software interface.

  • Page 102: Event Viewing

    IP Address IP Subnet Mask IP Routing When a settings file is loaded to a L60 that is in-service, the following sequence occurs: The L60 takes itself out of service. The L60 issues a UNIT NOT PROGRAMMED major self-test error.

  • Page 103: Settings Templates

    The settings template mode allows the user to define which settings are visible in the software. Settings templates can be applied to both settings files (settings file templates) and online devices (online settings templates). The functionality is identical for both purposes. Settings file conversion from previous firmware versions is supported. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 104 By default, all settings are specified as locked and displayed against a grey background. The icon on the upper right of the settings window also indicates that the EnerVista software is in EDIT mode. The following example shows the phase time overcurrent settings window in edit mode. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 105 The following procedure outlines 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 window. Select the Template Mode > Password Protect Template option. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 106 Viewing the settings in template mode also modifies the settings menu, showing only the settings categories that contain editable settings. The effect of applying the template to a typical settings menu is shown as follows. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 107 Select an installed device or settings file on the left side of the EnerVista UR Setup window. Right-click and select the Template Mode > Remove Settings Template option. Enter the template password and click OK to continue. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 108: Secure And Lock Flexlogic Equations

    Click the Save button 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. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 109 Right-click the setting file in the offline window area and select the Edit Settings File Properties item. The window opens. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 110: Settings File Traceability

    When a settings file is transferred to a L60 device, the date, time, and serial number of the L60 are sent back to EnerVista UR Setup and added to the settings file on the local computer. This information can be compared with the L60 actual values at any later date to determine if security has been compromised.
  • Page 111 With respect to the figure, the traceability feature is used as follows. The transfer date of a settings file written to a L60 is logged in the relay and can be viewed in the EnerVista software or the front panel display. Likewise, the transfer date of a settings file saved to a local computer is logged in the EnerVista software.

  • Page 112: Front Panel Interface

    For example, for 127.0.0.1, press 127, then •, then 0, then •, then 0, then •, then 1. To save the address, press key. ENTER The figure shows the sequence to use to enter a setting. Subsequent sections provide more detail. 4-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 113: Menu Navigation

    Default values are indicated in this instruction manual in mixed case. In the example shown here, the default access level is Restricted. Highest level Lowest level (setting value)  SETTINGS  SECURITY ACCESS LEVEL:    PRODUCT SETUP  Restricted   SETTINGS  SYSTEM SETUP L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-13...

  • Page 114: Changing Settings

    While at the maximum value, pressing the up arrow again allows the setting selection to continue VALUE upward from the minimum value. The down arrow decrements the displayed value by the step value, down to VALUE 4-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 115: Faceplate

    The front panel consists of LED panels, an RS232 port, keypad, LCD display, control pushbuttons, and optional user- programmable pushbuttons. The faceplate is hinged to allow access to the removable modules. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-15...
  • Page 116 The following figure shows the horizontal arrangement of the faceplate panel. Figure 4-18: Standard horizontal faceplate The following figure shows the vertical arrangement of the faceplate panel for relays ordered with the vertical option. 4-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 117: Led Indicators

    SETTINGS  INPUT/OUTPUTS  RESETTING keys are used by the breaker control feature. USER Figure 4-20: Typical LED panel for enhanced faceplate 842811A1.CDR The status indicators in the first column are as follows: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-17...
  • Page 118 Support for applying a customized label beside every LED is provided. Default labels are shipped in the label package of every L60, 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 119 User customization of LED operation is of maximum benefit in installations where languages other than English are used to communicate with operators. See the User-programmable LEDs section in chapter 5 for the settings used to program the operation of the LEDs on these panels. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-19...

  • Page 120: Custom Led Labeling

    Figure 4-23: LED panel 2 (default labels) 4.2.8 Custom LED labeling 4.2.8.1 Enhanced faceplate The following procedure requires these pre-requisites: • EnerVista UR Setup software is installed and operational 4-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 121 NOTE The label package shipped with every L60 contains the three default labels, the custom label template sheet, and the label removal tool. If the default labels are suitable for your application, insert them in the appropriate slots and program the LEDs to match them.
  • Page 122 Bend the tab at the center of the tool tail as shown. To remove the LED labels from the L60 enhanced front panel and insert the custom labels: Use the knife to lift the LED label and slide the label tool underneath. Ensure that the bent tabs are pointing away from the relay.
  • Page 123 Slide the new LED label inside the pocket until the text is properly aligned with the LEDs, as shown. To remove the user-programmable pushbutton labels from the L60 enhanced front panel and insert the custom labels: Use the knife to lift the pushbutton label and slide the tail of the label tool underneath, as shown. Ensure that the bent L60 LINE PHASE COMPARISON SYSTEM –...
  • Page 124 Remove the tool and attached user-programmable pushbutton label. Slide the new user-programmable pushbutton label inside the pocket until the text is properly aligned with the 4-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 125: Breaker Control

    4.2.9 Breaker control The L60 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 the faceplate keypad or automatically initiated from a FlexLogic operand.

  • Page 126: Change Passwords

    When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.

  • Page 127: Invalid Password Entry

    By default, when an incorrect Command or Setting password has been entered via the faceplate interface three times within five minutes, the FlexLogic operand is set to “On” and the L60 does not allow settings or command LOCAL ACCESS DENIED level access via the faceplate interface for five minutes.

  • Page 128: Logic Diagrams

    Not. Negates/reverses the output, for example 0 becomes 1.  Connection  S, R Set, Reset Timer pickup. Triggered by the settings latch in the diagram. Timer reset. Triggered by the reset latch in the diagram. 4-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 129 FUNCTION 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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 4-29...
  • Page 130 LOGIC DIAGRAMS CHAPTER 4: INTERFACES 4-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 131: Settings

     DATA LOGGER See page 5-90    USER-PROGRAMMABLE See page 5-91   LEDS  USER-PROGRAMMABLE See page 5-95   SELF TESTS  CONTROL See page 5-95   PUSHBUTTONS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 132  SETTING GROUP 5    SETTING GROUP 6     SETTINGS  TRIP BUS See page 5-256   CONTROL ELEMENTS   SETTING GROUPS See page 5-258    L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 133 See page 5-330 TEST MODE FORCING: Range: FlexLogic operand   See page 5-331  FORCE CONTACT See page 5-332   INPUTS  FORCE CONTACT See page 5-332    OUTPUTS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 134: Overview

    FUNCTION setting — This setting programs the element to operate when selected as “Enabled.” The factory default is “Disabled.” Once “Enabled,” any element associated with the function becomes active and all options become available. • NAME setting — This setting is used to uniquely identify the element. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 135: Introduction To Ac Sources

    5.2.2.1 Background The L60 is ordered with two CT/VT modules. If two breakers are involved in an application, the current must be summed externally. With two CT/VT modules, the L60 allows the connection of two breaker CTs directly to the relay, processing the currents individually for some functions and summing them for other functions by employing the sources mechanism.
  • Page 136 CHAPTER 5: SETTINGS Sources, in the context of L60 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 can 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 137: Product Setup

    Password security — Basic security present by default • EnerVista security — Role-based access to various EnerVista software screens and configuration elements. The feature is present by default in the EnerVista software. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 138  EVENTS: Disabled The L60 supports password entry from a local or remote connection. Local access is defined as access to settings or commands via the faceplate. This includes both keypad entry and the RS232 port. Remote access is defined as access to settings or commands via any rear communications port. This includes both Ethernet and RS485 connections.
  • Page 139 When entering a settings or command password via EnerVista or any serial interface, the user must enter the corresponding connection password. If the connection is to the back of the L60, the remote password must be used. If the connection is to the RS232 port of the faceplate, the local password must be used.
  • Page 140 Re-enter the password in the Confirm Password field. Click the OK button. The password is checked to ensure that it meets requirements. If you establish a local (serial) connection to the relay, you cannot view remote passcodes. NOTE 5-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 141 INVALID ATTEMPTS BEFORE LOCKOUT The L60 provides a means to raise an alarm upon failed password entry. If password verification fails while accessing a password-protected level of the relay (either settings or commands), the FlexLogic operand is asserted.
  • Page 142 Access Authorized Timeout setting value is started. When this timer expires, remote setting access is denied immediately. If access is permitted and an off-to-on transition of the FlexLogic operand is detected, the timeout is restarted. The status of this timer updates every five seconds. 5-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 143 Click the Ok button. If you force password entry by using this feature, ensure that you know the Administrator password. If you do not know the password and are locked out of the software, contact GE Digital Energy for the default password NOTE of a UR device.
  • Page 144 The EnerVista security management system must be enabled (the Enable Security check box enabled) To modify user privileges: Select the Security > User Management item from the top menu to open the user management window. Locate the username in the User field. 5-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 145 Click OK to save the changes. 5.3.1.4 CyberSentry security The EnerVista software provides the means to configure and authenticate the L60 access using either a server or the device. Access to functions depends on user role. The login screen of EnerVista has two options for access to the L60, these being Server and Device authentication.
  • Page 146 In this case, it uses built-in roles (Administrator, Engineer, Supervisor, Operator, Observer), as login accounts and the associated passwords are stored on the L60 device. In this case, access is not user-attributable. In cases where user-attributable access is required, especially for auditable processes for compliance reasons, use server authentication (RADIUS) only.
  • Page 147 CHAPTER 5: SETTINGS PRODUCT SETUP Figure 5-3: CyberSentry security panel For the Device > Settings > Product Setup > Supervisory option, the panel looks like the following. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-17...
  • Page 148 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 5-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 149 The specified password-protected. All RADIUS users are Password following Me1# role and password-protected. Requirements password Administrator, section earlier section for except for in this chapter requireme Supervisor, where it is only itself L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-19...
  • Page 150 This role also has the ability to forcefully log off any other role and clear the security event log. 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. 5-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 151 • Observer — This role has read-only access to all L60 settings. This role allows unlimited concurrent access but it has no download access to any files on the device. Observer is the default role if no authentication has been done to the device.
  • Page 152 Administrator if the Supervisor role is disabled. The Supervisor role disables this setting for the relay to start accepting settings changes, command changes, or firmware upgrade. After all the setting changes are applied or commands executed, the Supervisor enables to lock settings changes. 5-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 153 EnerVista software. The RADIUS server itself also must be configured. The appendix called RADIUS Server at the end of this instruction manual gives an example of how to set up a simple RADIUS server. Once both the RADIUS server and L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-23...
  • Page 154 Event Number — UTC date and time Date & Timestamp — 255 chars maximum, but in the security log it is truncated to 20 characters Username — Device IP address IP address 5-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 155: Display Properties

    CURRENT CUT-OFF Range: 0.002 to 0.020 pu in steps of 0.001  LEVEL: 0.020 pu VOLTAGE CUT-OFF Range: 0.1 to 1.0 V secondary in steps of 0.1  LEVEL: 1.0 V L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-25...
  • Page 156 Some customers prefer very low currents to display as zero, while others prefer the current to display even when the value reflects noise rather than the actual signal. The L60 applies a cut-off value to the magnitudes and angles of the measured currents.

  • Page 157: Clear Relay Records

    Selected records can be cleared from user-programmable conditions with FlexLogic operands. Assigning user- programmable pushbuttons to clear specific records is a typical application for these commands. Since the L60 responds to rising edges of the configured FlexLogic operands, they must be asserted for at least 50 ms to take effect.

  • Page 158: Communications

    Range: 0 to 1000 ms in steps of 10  MIN TIME: 0 ms , and — The L60 is equipped with two independent serial communication RS232 BAUD RATE RS485 COM2 BAUD RATE PARITY ports. The faceplate RS232 port is intended for local use and has two options for baud rate. The rear COM2 port is RS485 and has settings for baud rate and parity.
  • Page 159 5.3.4.3 Ethernet network topology The L60 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 operation performed between their respective IP address and mask produces a different result.
  • Page 160 In this configuration, P3 uses the IP and MAC addresses of P2. Figure 5-6: Multiple LANs, with redundancy Public Network SCADA EnerVista Software LAN1 LAN2 LAN2 ML3000 ML3000 ML3000 IP1/ IP2/ IP2/ MAC2 MAC2 MAC1 Redundancy mode 859709A4.vsd 5-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 161 Range: 01-15-4E-00-01-00 to 01-15-4E-00-01-FF  01-15-4E-00-01-00  NETWORK PORT 3 PRT3 IP ADDRESS: Range: standard IPV4 address format   127.0.0.1 PRT3 SUBNET IP MASK: Range: standard IPV4 address format  255.0.0.0 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-31...
  • Page 162 2 is performed. The delay in switching back ensures that rebooted switching devices connected to the L60, which signal their ports as active prior to being completely functional, have time to completely initialize themselves and become active. Once port 2 is active again, port 3 returns to standby mode.
  • Page 163 UR 7 redundancy Failover is selected for redundancy. 5.3.4.6 Parallel Redundancy Protocol (PRP) The L60 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
  • Page 164 Delete the default route by replacing the default gateway with the default value of 127.0.0.1. General conditions to be satisfied by static routes The following rules are validated internally: 5-34 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • 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 Router2. Router2 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: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-35...
  • Page 166  MODBUS PROTOCOL MODBUS SLAVE Range: 0 to 254 in steps of 1   ADDRESS: 254 MODBUS TCP PORT Range: 0 to 65535 in steps of 1  NUMBER: 502 5-36 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 167 0 disables Modbus over TCP/IP, meaning closes the Modbus TCP port. When the port number is changed to 0, the change takes effect when the L60 is restarted. When it is set to 0, use the front panel or serial port to communicate with the relay.
  • Page 168 DNP UNSOL RESPONSE Range: 0 to 65519 in steps of 1  DEST ADDRESS: 1 DNP CURRENT SCALE Range: 0.001, 0.01. 0.1, 1, 10, 100, 1000, 10000,  FACTOR: 1 100000 5-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 169 The protocol is scalable; that is, it is designed to be compatible with the latest high speed LAN technology yet still be implemented over slower speed serial links. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-39...
  • Page 170 DNP ADDRESS unique address to each DNP slave. The L60 can specify a maximum of five clients for its DNP connections. These are IP addresses for the controllers to which the L60 can connect. The settings follow. SETTINGS  PRODUCT SETUP  COMMUNICATIONS  DNP PROTOCOL  DNP NETWORK CLIENT ADDRESSES ...
  • Page 171 DNP TCP connection for greater than the time specified by this setting, the connection is aborted by the L60. This frees up the connection to be re-used by a client. Any change takes effect after cycling power to the relay.
  • Page 172 FlexLogic operand. See the Introduction to FlexLogic section in this chapter for the range of assignable operands. Changes to the DNP / IEC 60870-5-104 point lists take effect when the L60 is restarted. The menu for the analog input points (DNP) or MME points (IEC 60870-5-104) follows.
  • Page 173 EnerVista setup for IEC 61850 The EnerVista UR Setup software provides the interface to configure L60 settings for the IEC 61850 protocol. This section describes this interface. The software also supports import and export of IEC 61850 Substation Configuration Language (SCL) files as documented in the UR Series Communications Guide.
  • Page 174 Opening the IEC 61850 window while online causes the UR Setup software to retrieve and import an SCL file from the connected L60. This SCD file contains all the settings in the UR at the time of the file request, both those that are mapped into the IEC 61850 information model (that is, the "public"...
  • Page 175 When the Save button in the online IEC 61850 window is clicked, UR Setup software prepares a configured IED description (CID) file containing all the device’s settings and sends the CID file to the connected L60. On receipt of a CID file, the L60 checks it for correctness, and if no error is found, reboots using the settings in the CID file.
  • Page 176 The value entered sets the value of the data attribute <LDName>/LPHD1.PhyNam.longitude. This data attribute is provided by the protocol to allow the user to declare the geographical position of the device in WGS84 coordinates - longitude. Negative values indicate a western longitude. 5-46 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 177 Default: 0 This data attribute is provided by the protocol to make changes to the settings of the L60 apparent to clients. The Substation Configuration Tool and UR Setup software advance the value of paramRev each time any setting changes.
  • Page 178 The entities whose values are published in GOOSE messages are known as members. The members are itemized in an ordered list known as a data set. Each TxGOOSE can use any one of the data sets provided. See the DataSets section later for details. 5-48 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 179 When set to Disabled, no GOOSE messages are published on L60 Ethernet port 1, and any GOOSE messages received on port 1 are ignored. When set to Enabled, all enabled GOOSE messages are published on L60 Ethernet port 1, and any GOOSE messages received on port 1 are listened to.
  • Page 180 The standard recommends that the algorithm used by hardware of the receiving device be considered when assigning destination multicast addresses. Subscribers can use this address to discriminate TxGOOSE1 messages from other GOOSE messages. 5-50 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 181 The value entered sets the timeAllowedtoLive value in published TxGOOSE1 messages. The standard requires subscribers to assume a failure has occurred when another TxGOOSE1 message is not received within the published timeAllowedtoLive time. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-51...
  • Page 182 RxGOOSE assumes that connectivity is lost. FlexLogic operands (for example, RxGOOSE1 On, RxGOOSE1 Off) reflect the status of each RxGOOSE connectivity. RxGOOSE connectivity of an RxGOOSE with non-zero MAC address is also considered lost after the L60 finishes restart until a message is received. When RxGOOSE connectivity is lost, a common RxGOOSE Fail self-test activates.
  • Page 183 <GoCBName> is the name of the publishing control block. The L60 translates the ACSI format required for this setting to the MMS format used in GOOSE messages: <LDName>/LLN0$GO$<GoCBName> If the publisher is a UR 7.3x series device, <LDName> is the value of the publisher's Master functional ldName setting if that setting is not empty, otherwise it is the value of the publisher's IED NAME suffixed with "Master".
  • Page 184 Navigate to Settings > Product Setup > Communications > IEC 61850 > GOOSE > RxGOOSE > RxGOOSE Boolean Inputs > RxGOOSE Boolean1 to access the settings for the first RxGOOSE Boolean. The settings and functionality for the others are similar. 5-54 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 185 "Latest/Off" freezes the input in case of lost connectivity. If the latest state is unknown, such as after UR power-up but before the first communication, the input defaults to logic 0. When communication resumes, the input becomes fully operational. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-55...
  • Page 186 This setting allows the user to assign descriptive text to the names of the four RxGOOSE DPS1 FlexLogic operands. The full operand name is the value of this setting appended with "Intermediate," "On," "Off," or "Bad." This descriptive text also appears in the SCL files associated with the L60. RxGOOSE DPS1 RxGOOSE...
  • Page 187 This setting allows the user to assign descriptive text to RxGOOSE Analog1. This descriptive text also appears in the SCL files associated with the L60. Unlike RxGOOSE Booleans and RxGOOSE DPS, the RxGOOSE Analog operands have fixed names, for example RxGOOSE Analog1.
  • Page 188 Range: 0.000 to 1000000000.000 in steps of 0.001 Default: 1.000 This setting specifies the per-unit base value for other L60 features to use with the RxGOOSE Analog1 operand. A FlexElement for instance subtracts two quantities after converting their values to integers rescaled to a common base, the common base being the largest of the base values of the two quantities.
  • Page 189 Control blocks and data sets can be pre-configured by sending the L60 a CID file. See the UR Series Communications Guide for details. EnerVista UR Setup also can be used to select the data set members and to pre-configure the control blocks.
  • Page 190 Buffered Report1 BufTm Range: 0 to 4294967295 in steps of 1 Default: 0 The entered value sets the time interval in milliseconds for the buffering of events for inclusion in a single report. 5-60 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 191 The OptFlds setting is bitstring that controls which of the optional fields are included in report messages. The options are as follows: – sequence-number – report-time-stamp – reason-for-inclusion – data-set-name – data-reference L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-61...
  • Page 192 Communications Guide. All FlexLogic and FlexAnalog operands can be user-assigned to GGIO1 or GGIO4 data attributes, so that operands without factory assigned data attributes can still have their values published. See the GGIO1 and GGIO4 sections later for details. 5-62 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 193 (db in the figure). Changes to this deadbanded value trigger transmissions when included in GOOSE and report data sets. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-63...
  • Page 194 Navigate to Settings > Communications > IEC 61850 > System Setup > Breakers > Breaker 1 to access the settings that configure the IEC 61850 protocol interface with the first breaker control and status monitoring element. The settings and functionality for the others are similar. 5-64 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 195 SelectWithValue or Operate service with ctlVal true and with Check.Interlock-check true is requested of either BkrCSWI1.Pos or Bkr0XCBR1.Pos and the selected operand is not activated, a Negative Response (-Rsp) is issued with the REASON CODE of Blocked-by-interlocking. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-65...
  • Page 196 This setting specifies the maximum time between an operate command to breaker 1 via BkrCSWI1.Pos until BkrCSWI1.Pos.stVal enters the commanded state. The command terminates if the commanded state is not reached in the set time. 5-66 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 197 If a SelectWithValue or Operate service with ctlVal false and with Check.Interlock-check true is requested of DiscCSWI1.Pos or Disc0XSWI1.Pos and the selected operand is not activated, a Negative Response (-Rsp) is issued with the REASON CODE of Blocked-by-interlocking. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-67...
  • Page 198 > System Setup section later. These signals force a disconnect switch trip or close control while the operand selected by setting XSWI1 ST.LOC OPERAND is not active. "sbo" here is select-before-operate. Enhanced security means that the L60 reports to the client the disconnect switch 1 position the end of the command sequence.
  • Page 199 UR reboot immediately following the receipt of a valid CID file. This setting is not mapped into the IEC 61850 information model, but sets the value of SettingControl element attribute actSG in SCL files. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-69...
  • Page 200 This setting selects the control model clients must use to successfully control the command CLEAR FAULT REPORTS. "sbo" here is select-before-operate. Enhanced security means that the L60 reports to the client the breaker 1 position at the end of the command sequence.
  • Page 201 <LDName>/GGIO1.Ind001.stVal. See the FlexLogic section in this chapter for a list of FlexLogic operands. GGIO1 INDICATION 2 Range: any FlexLogic operand Default: OFF Selects the FlexLogic operand mapped to <LDName>/GGIO1.Ind002.stVal, and so on. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-71...
  • Page 202 Navigate to Settings > Product Setup > Communications > IEC 61850 > GGIO > GGIO4 > GGIO4.AnIn1 to access the settings for the first GGIO4 value. The settings and functionality for the others are similar. 5-72 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 203 <LDName>/GGIO4.AnIn01.instMag.f. This setting is stored as an IEEE 754 / IEC 60559 floating point number. Because of the large range of this setting, not all possible values can be stored. Some values are rounded to the closest possible floating point number. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-73...
  • Page 204 CHAPTER 5: SETTINGS File transfer by IEC 61850 The L60 supports file transfer by IEC 61850. The approach is as follows, using the SISCO AX-S4 61850 client software as an example. In the AX-S4 61850 Explorer window, click the Tools menu and access the SISCO File Transfer Utility.
  • Page 205 NUMBER: 0 The Trivial File Transfer Protocol (TFTP) can be used to transfer files from the L60 over a network. The L60 operates as a TFTP server. TFTP client software is available from various sources, including Microsoft Windows NT. The dir.txt file obtained from the L60 contains a list and description of all available files, for example event records and oscillography.
  • Page 206 COMMUNICATIONS  PROTOCOL connected to a maximum of two masters (usually either an RTU or a SCADA master station). Since the L60 maintains two sets of IEC 60870-5-104 data change buffers, ideally no more than two masters actively communicate with the L60 at one time.
  • Page 207 PTP, or SNTP, its time is overwritten by these three sources, if any of them is active. If the synchronization timeout occurs and none of IRIG-B, PTP, or SNTP is active, the L60 sets the invalid bit in the time stamp of a time-tagged message.
  • Page 208 Spontaneous transmission occurs as a response to cyclic Class 2 requests. If the L60 wants to transmit Class 1 data at that time, it demands access for Class 1 data transmission (ACD=1 in the control field of the response).
  • Page 209 INFORMATION NUMBER (INF) as defined in IEC 60870-103. — This is the cyclic period used by the L60 to decide when a measurand ASDU is included in a SCAN TIMEOUT (SCAN TOUT) response. The measurand is sent as response to a Class 2 request when the corresponding timeout expires. The default value 0 means 500 ms.
  • Page 210 FlexAnalog operands. The measurands sent are voltage, current, power, power factor, and frequency. If any other FlexAnalog is chosen, the L60 sends 0 instead of its value. Note that the power is transmitted in KW, not W. Measurands are transmitted as ASDU 3 or ASDU 9 (type identification value set to measurands I, respectively measurands II).

  • Page 211: Modbus User Map

    Commands are received as General Command (Type Identification 20). The user can configure the action to perform when an ASDU command comes. A list of available mappings is provided on the L60. This includes 64 virtual inputs (see the following table). The ON and OFF for the same ASDU command can be mapped to different virtual inputs.

  • Page 212: Real-Time Clock

    The clock is updated by all sources active in the device. This means that whenever a time synchronization message is received through any of the active protocols, the L60 clock updates. However, given that IEC 60870-5-103, IEC 60870-5- 104, Modbus, and DNP are low-accuracy time synchronization methods, avoid their use for synchronization when better accuracy time protocols, such as IRIG-B, PTP, and SNTP, are active in the system.
  • Page 213 1588 software option at the time of ordering. See the Order Codes section in chapter 2 for details. The L60 supports the Precision Time Protocol (PTP) specified in IEEE Std 1588 2008 using the Power Profile (PP) specified in IEEE Std C37.238 2011. This enables the relay to synchronize to the international time standard over an Ethernet network that implements PP.
  • Page 214 Except in unusual cases, the two fibers are of essentially identical length and composition, so make this setting zero. 5-84 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 215 L60 clock is closely synchronized with the SNTP/ NTP server. It takes up to two minutes for the L60 to signal an SNTP self-test error if the server is offline.

  • Page 216: Fault Reports

     2:00 The L60 maintains two times: local time and Universal Coordinated Time (UTC). Local time can be provided by IRIG-B signals. UTC time is provided by SNTP servers. The real-time clock (RTC) and timestamps reported in historical records and communication protocols can be incorrect if the Local Time settings are not configured properly.
  • Page 217 CHAPTER 5: SETTINGS PRODUCT SETUP The L60 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 218: Oscillography

    ACTUAL VALUES  menu to view the number of cycles captured per record. The following table provides sample RECORDS  OSCILLOGRAPHY configurations with corresponding cycles/record. The minimum number of oscillographic records is three. 5-88 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 219 These settings select the metering actual value recorded in an oscillography trace. The length of each oscillography trace depends in part on the number of parameters selected here. Parameters set to “Off” are ignored. The parameters available in a given relay depend on • the type of relay, L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-89...

  • Page 220: Data Logger

    The relay automatically partitions the available memory between the channels in use. The following table outlines examples of storage capacities for a system frequency of 60 Hz. 5-90 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 221: User-Programmable Leds

    DATA LOGGER CONFIG selected to “Off” without overwriting old data. 5.3.10 User-programmable LEDs 5.3.10.1 Menu SETTINGS  PRODUCT SETUP  USER-PROGRAMMABLE LEDS  USER-PROGRAMMABLE  LED TEST See below   LEDS  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-91...
  • Page 222 The test responds to the position and rising edges of the control input defined by the LED TEST CONTROL setting. The control pulses must last at least 250 ms to take effect. The following diagram explains how the test is executed. 5-92 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 223: Application Example 1

    2. When stage 2 is completed, stage 3 starts automatically. The test can be cancelled at any time by pressing the pushbutton. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-93...
  • Page 224 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 5-94 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 225: 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- programmable control pushbuttons. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-95...
  • Page 226 The location of the control pushbuttons are shown in the following figures. Figure 5-33: Control pushbuttons (enhanced faceplate) Control pushbuttons 842813A1.CDR An additional four control pushbuttons are included on the standard faceplate when the L60 is ordered with the 12 user- programmable pushbutton option. Figure 5-34: Control pushbuttons (standard faceplate) STATUS...

  • Page 227: User-Programmable Pushbuttons

    Range: 0 to 60.00 s in steps of 0.05  TIME: 0.00 s PUSHBTN 1 LED CTL: Range: FlexLogic operand  PUSHBTN 1 MESSAGE: Range: Disabled, Normal, High Priority  Disabled PUSHBUTTON 1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-97...
  • Page 228 PRODUCT SETUP CHAPTER 5: SETTINGS The L60 is provided with this optional feature, specified as an option at the time of ordering. Using the order code for your device, see the order codes in chapter 2 for details. User-programmable pushbuttons provide an easy and error-free method of entering digital state (on, off) information. The number of available pushbuttons is dependent on the faceplate module ordered with the relay.
  • Page 229 “Self-reset” as the pushbutton operand status is PUSHBUTTON 1 FUNCTION implied to be “Off” upon its release. The length of the “Off” message is configured with the PRODUCT SETUP  DISPLAY setting. PROPERTIES  FLASH MESSAGE TIME L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-99...
  • Page 230 “High Priority” or “Normal.” MESSAGE — If this setting is enabled, each pushbutton state change is logged as an event into the event PUSHBUTTON 1 EVENTS recorder. The figures show the user-programmable pushbutton logic. 5-100 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 231 2, 842024A2 SETTING Reset Off = 0 SETTING SETTING Autoreset Delay Autoreset Function = Enabled = Disabled SETTING Drop-Out Timer TIMER FLEXLOGIC OPERAND 200 ms PUSHBUTTON 1 ON 842021A3.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-101...

  • Page 232: Flex State Parameters

    EnerVista software with the Maintenance > Enable Pushbutton command. 5.3.14 Flex state parameters SETTINGS  PRODUCT SETUP  FLEX STATE PARAMETERS  FLEX STATE PARAMETER 1: Range: FlexLogic operand   PARAMETERS  PARAMETER 256: Range: FlexLogic operand  5-102 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 233: User-Definable Displays

    Range: up to 20 alphanumeric characters   DISP 1 BOTTOM LINE: Range: up to 20 alphanumeric characters  DISP 1 ITEM 1 Range: 0 to 65535 in steps of 1   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-103...
  • Page 234 If the parameters for the top line and the bottom line items have the same units, then the unit is displayed on the bottom line only. The units are only displayed on both lines if the units specified both the top and bottom line items are different. 5-104 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 235: Direct Inputs And Outputs

    UR-series relay are not being received back by the relay. • (direct device offline). These FlexLogic operands indicate that direct output DIRECT DEVICE 1 OFF DIRECT DEVICE 16 OFF messages from at least one direct device are not being received. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-105...
  • Page 236 Channel 1 128 kbps Channel 1 128 kbps Channel 1 64 kbps, 128 kbps Channel 2 64 kbps, 128 kbps Channel 1 64 kbps, 128 kbps Channel 2 64 kbps, 128 kbps 5-106 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 237 In this application, apply the following settings. For UR-series IED 1: DIRECT OUTPUT DEVICE ID: “1” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O DATA RATE: “128 kbps” For UR-series IED 2: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-107...
  • Page 238 DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” For UR-series IED 4: DIRECT OUTPUT DEVICE ID: “4” DIRECT I/O CH1 RING CONFIGURATION: “Yes” DIRECT I/O CH2 RING CONFIGURATION: “Yes” 5-108 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 239 A permissive pilot-aided scheme can be implemented in a two-ring configuration, shown as follows (IEDs 1 and 2 constitute a first ring, while IEDs 2 and 3 constitute a second ring). Figure 5-44: Single-channel open loop configuration UR IED 1 UR IED 2 UR IED 3 842714A1.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-109...
  • Page 240 IED 2 to IED 3: 0.2 of power system cycle The two communications configurations can be applied to both permissive and blocking schemes. Take speed, reliability, and cost into account when selecting the required architecture. 5-110 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 241 EVENTS: Disabled The L60 checks integrity of the incoming direct input and output messages using a 32-bit CRC. The CRC alarm function is available for monitoring the communication medium noise by tracking the rate of messages failing the CRC check. The monitoring function counts all incoming messages, including messages that failed the CRC check.

  • Page 242: Teleprotection

    “3” (three-terminal system), NUMBER OF CHANNELS NUMBER OF TERMINALS set the to “2.” For a two-terminal system, the can set to “1” or “2” (redundant NUMBER OF CHANNELS NUMBER OF CHANNELS channels). 5-112 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 243: Installation

    (star), the calculated phasor sum of the three phase currents (IA + IB + IC = neutral current = 3Io) is used as the input for the neutral overcurrent elements. In addition, a zero-sequence (core balance) CT which senses current in all of the L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-113...
  • Page 244 = 66.4. On a 14.4 kV system with a delta connection and a VT primary to secondary turns ratio of 14400:120, the voltage value entered is 120; that is, 14400 / 120. 5-114 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 245: Power System

    “Disabled” only in unusual circumstances; consult GE Digital Energy for special variable- FREQUENCY TRACKING frequency applications. The frequency tracking feature functions only when the L60 is in the “Programmed” mode. If the L60 is “Not Programmed,” then metering values are available but can exhibit significant errors. NOTE When voltage is supplied to the relay through a VT, it is advisable to assign a source configured with a phase VT voltage (source 3 or 4) to track system frequency from voltage.
  • Page 246 Only the phasor quantities associated with the actual AC physical input channels display here. All parameters contained within a configured source are displayed in the sources section of the actual values. 5-116 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 247 This configuration can be used on a two-winding transformer, with one winding connected into a breaker-and-a-half system. The following figure shows the arrangement of sources used to provide the functions required in this application, and the CT/VT inputs that are used to provide the data. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-117...

  • Page 248: Breakers

    Range: Disabled, Enabled  CONTROL: Disabled BREAKER 1 NAME: Range: up to six alphanumeric characters  Bkr 1 BREAKER 1 MODE: Range: 3-Pole, 1-Pole  3-Pole BREAKER 1 OPEN: Range: FlexLogic operand  5-118 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 249 1. The number of breaker control elements depends on the number of CT/VT modules specified with the L60. The following settings are available for each breaker control element.
  • Page 250 MANUAL CLOSE RECAL1 TIME operator has initiated a manual close command to operate a circuit breaker. — Selects an operand indicating that breaker 1 is out-of-service. BREAKER 1 OUT OF SV 5-120 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 251 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-49: Dual breaker control logic (Sheet 1 of 2) IEC 61850 functionality is permitted when the L60 is in “Programmed” mode and not in local control mode. NOTE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 252 IEC 61850 trip and close commands shown is one protection pass only. To maintain the close/ open command for a certain time, do so on the contact outputs using the "Seal-in" setting, in the Trip Output element, or in FlexLogic. 5-122 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 253: Disconnect Switches

    The number of available disconnect switches depends on the number of the CT/VT modules ordered with the L60. — This setting enables and disables operation of the disconnect switch element.
  • Page 254 SWITCH 1 ALARM DELAY pole position tracking operands do not declare a pole disagreement. This allows for non-simultaneous operation of the poles. IEC 61850 functionality is permitted when the L60 is in “Programmed” mode and not in local control mode. NOTE 5-124...
  • Page 255 CHAPTER 5: SETTINGS SYSTEM SETUP Figure 5-51: Disconnect switch logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-125...

  • Page 256: Flexcurves

    1; that is, 0.98 pu and 1.03 pu. It is NOTE recommended to set the two times to a similar value, otherwise the linear approximation can result in undesired behavior for the operating quantity that is close to 1.00 pu. 5-126 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 257 30 ms. At approximately four times pickup, the curve operating time is equal to the MRT and from then onwards the operating time remains at 200 ms. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-127...
  • Page 258 If this is attempted, the EnerVista software generates an error message and discards the proposed changes. NOTE 5.4.6.5 Standard recloser curves The following graphs display standard recloser curves available for the L60. 5-128 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 259 7 8 9 10 12 CURRENT (multiple of pickup) 842723A1.CDR Figure 5-56: Recloser curves GE113, GE120, GE138, and GE142 GE142 GE138 GE120 GE113 0.05 7 8 9 10 12 CURRENT (multiple of pickup) 842725A1.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-129...
  • Page 260 7 8 9 10 12 CURRENT (multiple of pickup) 842730A1.CDR Figure 5-58: Recloser curves GE131, GE141, GE152, and GE200 GE152 GE141 GE131 GE200 7 8 9 10 12 CURRENT (multiple of pickup) 842728A1.CDR 5-130 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 261 842729A1.CDR Figure 5-60: Recloser curves GE116, GE117, GE118, GE132, GE136, and GE139 GE132 GE139 GE136 GE116 0.05 GE117 GE118 0.02 0.01 7 8 9 10 12 CURRENT (multiple of pickup) 842726A1.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-131...
  • Page 262 7 8 9 10 12 CURRENT (multiple of pickup) 842724A1.CDR Figure 5-62: Recloser curves GE119, GE135, and GE202 GE202 GE135 GE119 7 8 9 10 12 CURRENT (multiple of pickup) 842727A1.CDR 5-132 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 263: Flexlogic

    Figure 5-63: UR architecture overview The states of all digital signals used in the L60 are represented by flags (or FlexLogic operands, which are described later in this section). A digital “1” is represented by a set flag. Any external contact change-of-state can be used to block an element from operating, as an input to a control feature in a FlexLogic equation, or to operate a contact output.
  • Page 264 The number of pulses counted is equal to the set number Lower than Counter 1 LO The number of pulses counted is below the set number Fixed Logic 1 Logic 0 5-134 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 265 Advanced fault detector low, positive-sequence current has operated 87PC I_1 FDH OP Advanced fault detector high, positive-sequence current has operated 87PC RX1 Received pulse on channel 1 87PC RX2 Received pulse on channel 2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-135...
  • Page 266 Breaker failure 1 timer 3 is operated BKR FAIL 1 TRIP OP Breaker failure 1 trip is operated BKR FAIL 2 Same set of operands as shown for BKR FAIL 1 5-136 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 267 Ground distance zone 1 phase C has dropped out GND DIST Z2 DIR SUPN Ground distance zone 2 directional is supervising GND DIST Z2 to 3 Same set of operands as shown for GND DIST Z1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-137...
  • Page 268 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 5-138 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 269 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 to 4 Same set of operands as shown for PHASE IOC1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-139...
  • Page 270 Same set of operands as shown for PHASE UV1 ELEMENT: POTT OP Permissive over-reaching transfer trip has operated POTT POTT TX Permissive over-reaching transfer trip signal sent (Permissive overreach transfer trip) 5-140 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 271 Delta connected VT. Same set of operands as shown for SRC1 VT FF SRC2 VT FUSE FAIL to SRC4 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-141...
  • Page 272 Any trip is initiated by the trip output TRIP Z2PH TMR INIT Phase distance zone 2 timer is initiated by the trip output TRIP Z2GR TMR INIT Ground distance zone 2 timer is initiated by the trip output 5-142 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 273 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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-143...
  • Page 274 Communications source of the reset command RESET OP (OPERAND) Operand (assigned in the INPUTS/OUTPUTS  RESETTING menu) source of the reset command RESET OP (PUSHBUTTON) Reset key (pushbutton) source of the reset command 5-144 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 275 ‘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’ L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-145...

  • Page 276: Flexlogic Rules

    A timer operator (for example, "TIMER 1") or virtual output assignment (for example, " = Virt Op 1") can be used once only. If this rule is broken, a syntax error is declared. 5.5.3 FlexLogic evaluation Each equation is evaluated in the ascending order in which the parameters have been entered. 5-146 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 277: Flexlogic Example

    4, which is programmed in the contact output section to operate relay H1 (that is, contact output H1). Therefore, the required logic can be implemented with two FlexLogic equations with outputs of virtual output 3 and virtual output 4, shown as follows. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-147...
  • Page 278 It is generally easier to start at the output end of the equation and work back towards the input, as shown in the following steps. It is also recommended 5-148 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 279 It is now possible to check that this selection of parameters produces the required logic by converting the set of parameters into a logic diagram. The result of this process is shown in the figure, which is compared to the logic for virtual output 3 diagram as a check. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-149...
  • Page 280 Now check that the selection of parameters produce the required logic by converting the set of parameters into a logic diagram. The result is shown in the figure, which is compared to the logic for virtual output 4 diagram as a check. 5-150 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 281 Always test the logic after it is loaded into the relay, in the same way as has been used in the past. Testing can be L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-151...

  • Page 282: Flexlogic Equation Editor

    Range: Off, any analog actual value parameter  FLEXELEMENT 1 INPUT Range: SIGNED, ABSOLUTE  MODE: SIGNED FLEXELEMENT 1 COMP Range: LEVEL, DELTA  MODE: LEVEL FLEXELEMENT 1 Range: OVER, UNDER  DIRECTION: OVER 5-152 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 283 FLEXELEMENT 1 +IN this setting is set to “Off.” For proper operation of the element, at least one input must be selected. Otherwise, the element does not assert its output operands. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-153...
  • Page 284 HYSTERESIS = % of PICKUP FlexElement 1 OpSig 842705A1.CDR In conjunction with the setting, the element can be programmed to provide two extra FLEXELEMENT 1 INPUT MODE characteristics, as shown in the following figure. 5-154 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 285 BASE = maximum value of the DCMA INPUT MAX setting for the two transducers configured under the +IN and –IN inputs DELTA TIME BASE = 1 µs FAULT LOCATION BASE = Line Length as specified in Fault Report FREQUENCY = 1 Hz BASE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-155...

  • Page 286: Non-Volatile Latches

    — This setting characterizes Latch 1 to be Set- or Reset-dominant. LATCH 1 TYPE — If asserted, the specified FlexLogic operands 'sets' Latch 1. LATCH 1 SET — If asserted, the specified FlexLogic operand 'resets' Latch 1. LATCH 1 RESET 5-156 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 287: Overview

    See page 5-219    WATTMETRIC See page 5-227   GROUND FAULT  GROUND CURRENT See page 5-231    NEGATIVE SEQUENCE See page 5-234   CURRENT L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-157...

  • Page 288: Phase Comparison Elements

    0.50 pu 87PC FDL AUX: Range: FlexLogic operand  87PC FDH PICKUP: Range: 0.05 to 15.00 pu in steps of 0.01  0.75 pu 87PC FDH AUX: Range: FlexLogic operand  5-158 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 289 See the Application of Settings chapter for more information on individual settings. — Selects the phase comparison element scheme logic as follows: 87PC SCHEME SELECT 2TL-TR-SPC-2FC — Two-terminal line, permissive tripping, single phase comparison, two frequency channel. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-159...
  • Page 290 CTs summed externally) or from two separate sources (breaker-and-a-half or ring configurations), where currents from both CTs are fed into the L60 individually. — A mixed I_2 – K × I_1 signal, mixed I_1+I_2 / K signal, or single 3I_0 signal can be chosen as the operating 87PC SIGNAL signal for the FDH and FDL detectors and positive/negative square pulses generation.
  • Page 291 In part b), tripping occurs at the second coincidence if at the first coincidence integrator exceeded the stability angle setting but did not reach the enhanced stability angle setting. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-161...
  • Page 292 Phase comparison signals are important for the analysis of 87PC operation. As such, they are recorded in oscillography. A list of the 87PC channels recorded in oscillography is shown as follows. 5-162 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 293 CT/VT module to CPU trip pulse Tx Pos Transmit signal per 87PC logic Tx Neg Transmit signal per 87PC logic FDH Aligned See the Application of Settings chapter for calculation examples for the phase comparison elements. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-163...
  • Page 294 CH1 ASYMMETRY 87PC CH2 ASYMMETRY oscillography for commissioning, troubleshooting, and analysis purposes. The L60 features excellent stability during channel noise due to the high sampling rate of the received signal, and the unique integrator makes the digital phase- comparison relay fully equivalent to analogue phase-comparison relays.
  • Page 295 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-76: Overall phase comparison logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-165...
  • Page 296 NEG SEQ VOL FDL Range: 0.005 to 3.000 pu in steps of 0.001  PICKUP: 0.010 pu NEG SEQ VOL FDH Range: 0.005 to 3.000 pu in steps of 0.001  PICKUP: 0.050 pu 5-166 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 297 > FDL PICKUP Hardwired to the 87PC V2 FDL OP Σ Neg-seq voltage, V_2 (summed 87PC function > FDH PICKUP 87PC V2 FDH OP current) L1 PHASE CT BANK: Neg-seq current, I_2 831799A2.CDR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-167...
  • Page 298 — This setting controls targets of the function. These targets operate independently from the 87PC NEG SEQ di/dt FD TARGET targets. — This setting controls event recording of the function. These events are logged independently NEG SEQ di/dt FD EVENTS from the 87PC events. 5-168 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 299 — This setting defines seal-in time of the FDL function. To equalize the response between all POS SEQ di/dt FDL SEAL-IN terminals of the line, the timer is started at the rising edge of the raw di / dt condition. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-169...
  • Page 300 PICKUP: 0.50 pu NEG SEQ I_2 BLK: Range: FlexLogic operand  NEG SEQ I_2 FD Range: Self-Reset, Latched, Disabled  TARGET: Self-reset NEG SEQ I_2 FD Range: Disabled, Enabled  EVENTS: Disabled 5-170 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 301 The positive-sequence overcurrent advanced fault detector element responds to the increment of the magnitude of the positive-sequence current over a specified threshold. Thresholds are provided for low-set control of keying and high-set operation control of tripping. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-171...
  • Page 302 This setting is forced to “Disabled” if a phase VT bank is not assigned at either source 3 or source 4. The figure shows possible configurations. 5-172 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 303 SEQ CAPACITIVE REACTANCE No shunt reactors on the line or reactor current is subtracted from the line current, forcing the L60 to measure the uncompensated by shunt reactors load/fault current plus the full charging current.
  • Page 304 — Assigns a FlexLogic operand to control open/close state of breaker 1 with either 52a or 52b type BRK 1 AUX CONTACT contact to create logic “1” when the breaker is open. 5-174 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 305 FDH trip-level fault detector at the remote terminal during fault clearing. The default reset time can be changed according to local conditions. Figure 5-83: Open breaker echo logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-175...

  • Page 306: Line Pickup

    If a trip from distance is not required, then it can be disabled with the setting. LINE PICKUP DISTANCE TRIP Configure the operand to perform a trip action if the intent is zone 1 extension. LINE PICKUP RCL TRIP 5-176 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 307 — Assertion of the FlexLogic operand assigned to this setting blocks operation of the line pickup LINE PICKUP BLOCK element. — This setting enables and disables the logging of line pickup events in the sequence of events LINE PICKUP EVENTS recorder. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-177...

  • Page 308: Distance

      SOURCE: SRC 1 MEMORY Range: 5 to 25 cycles in steps of 1  DURATION: 10 cycles FORCE SELF-POLAR: Range: FlexLogic operand  FORCE MEM-POLAR: Range: FlexLogic operand  5-178 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 309 The memory polarization cannot be applied permanently but for a limited time only. The self-polarization can be applied permanently and therefore takes higher priority. NOTE The distance zones of the L60 are identical to that of the D60 Line Distance Relay. NOTE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 310 Range: 0.02 to 500.00 ohms in steps of 0.01  LFT BLD: 10.00 ohms PHS DIST Z1 QUAD Range: 60 to 90° in steps of 1  LFT BLD RCA: 85° 5-180 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 311 — This setting selects the shape of the phase distance function between the mho and quadrilateral PHS DIST Z1 SHAPE characteristics. The selection is available on a per-zone basis. The two characteristics and their possible variations are shown in the following figures. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-181...
  • Page 312 CHAPTER 5: SETTINGS Figure 5-86: Directional mho phase distance characteristic COMP LIMIT DIR COMP LIMIT DIR COMP LIMIT DIR RCA 837720A1.CDR Figure 5-87: Non-directional mho phase distance characteristic COMP LIMIT REV REACH 837802A1.CDR 5-182 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 313 RGT BLD 837721A1.CDR Figure 5-89: Non-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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-183...
  • Page 314 DIR COMP LIMIT = 90 DIR COMP LIMIT = 60 RGT BLD RCA = 90 RGT BLD RCA = 80 LFT BLD RCA = 90 LFT BLD RCA = 80 837723A1.CDR 5-184 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 315 SIR value properly and to maintain the optimal operating speed of the distance elements, set zone 1 reach with a regular 80 to 85% of the line impedance reach setting, even when zone 1 is disabled. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-185...
  • Page 316 Zone 1 does not need any drop-out delay since it is sealed-in by the presence of current. 5-186 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 317 PH DIST Z1 SUPN IBC PH DIST Z1 SUPN ICA OPEN POLE OP ** ** D60, L60, and L90 only. Other UR-series models apply regular current seal-in for zone 1. 837017A8.CDR Figure 5-94: Phase distance zone 2 OP logic For phase distance zone 2, there is a provision to start the zone timer with other distance zones or loop the pickup flag to avoid prolonging phase distance zone 2 operation when the fault evolves from one type to another or migrates from the initial zone to zone 2.
  • Page 318 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-95: Phase distance zones 3 and higher OP logic Figure 5-96: Phase distance logic 5-188 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 319 GND DIST Z1 VOLT Range: 0.000 to 5.000 pu in steps of 0.001  LEVEL: 0.000 pu GND DIST Z1 Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-189...
  • Page 320 The figures show the directional and non-directional quadrilateral ground distance characteristics. The directional and non-directional mho ground distance characteristics are the same as those shown for the phase distance element in the previous section. 5-190 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 321 Set this setting to zero if the compensation is not to be performed. Note that internally the mutual coupling compensation is applied only if L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-191...
  • Page 322 In conjunction with the quadrilateral characteristic, this setting improves security for faults close to the reach point by adjusting the reactance boundary into a tent-shape. 5-192 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 323 GND DIST Z1 PKP C FLEXLOGIC OPERANDS 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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-193...
  • Page 324 3 or 4 to zone 2. Assign the required zones in the trip output element to accomplish this functionality. Figure 5-101: Ground distance zones 3 and higher OP scheme 5-194 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 325 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-102: Ground distance zone 1 logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-195...
  • Page 326 Otherwise, the reverse fault condition that generates concern has high polarizing levels so that a correct reverse fault decision can be reliably made. The supervision for zones 2 and 3 is removed during open pole conditions. 5-196 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 327: Power Swing Detect (Ansi 68)

    RCA: 75° POWER SWING OUTER Range: 40 to 140° in steps of 1  LIMIT ANGLE: 120° POWER SWING MIDDLE Range: 40 to 140° in steps of 1  LIMIT ANGLE: 90° L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-197...
  • Page 328 Different protection elements respond differently to power swings. If tripping is required for faults during power swing conditions, some elements can be blocked permanently (using the operand), and others can be POWER SWING BLOCK blocked and dynamically unblocked upon fault detection (using the operand). POWER SWING UN/BLOCK 5-198 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 329 The element can be set to use either lens (mho) or rectangular (quadrilateral) characteristics, as shown in the figure. When set to “Mho,” the element applies the right and left blinders as well. If the blinders are not required, set their settings high enough to effectively disable the blinders. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-199...
  • Page 330 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-105: Power swing detect mho operating characteristics Figure 5-106: Effects of blinders on the mho characteristics 5-200 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 331 The three-step mode applies if there is enough space between the maximum load impedances and distance characteristics of the relay that all three (outer, middle, and inner) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-201...
  • Page 332 (the actual trip can be delayed as per the setting). Therefore, this angle must be selected in consideration to the TRIP MODE power swing angle beyond which the system becomes unstable and cannot recover. 5-202 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 333 POWER SWING TRIP — Enables and disables the logging of power swing detect events in the sequence of events POWER SWING EVENTS recorder. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-203...
  • Page 334 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-108: Power swing detect logic (Sheet 1 of 3) 5-204 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 335 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-109: Power swing detect logic (Sheet 2 of 3) Figure 5-110: Power swing detect logic (Sheet 3 of 3) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-205...

  • Page 336: 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. 5-206 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 337: Phase Current

    When the voltage is below this threshold, a blocking signal is not asserted by the element. When selecting this setting, remember that the L60 measures the phase-to-ground sequence voltages regardless of the VT connection. The nominal VT secondary voltage as specified with the SYSTEM SETUP ...
  • Page 338 RESET – ------------- -   –   pickup pickup where T = operate time (in seconds) TDM = Multiplier setting I = input current = Pickup Current setting pickup 5-208 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 339 ---------------------------------- - ---------------------------------- - Eq. 5-11 × × ⁄ – ⁄ RESET – pickup pickup where T = operate time (in seconds) TDM = Multiplier setting I = input current L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-209...
  • Page 340 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 5-210 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 341 6.931 4.496 3.192 2.656 2.353 2.158 2.022 1.921 1.843 1.781 9.242 5.995 4.256 3.541 3.138 2.878 2.695 2.561 2.457 2.375 10.0 11.552 7.494 5.320 4.426 3.922 3.597 3.369 3.201 3.072 2.969 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-211...
  • Page 342 T = operate time (in seconds) TDM = Multiplier setting I = Input Current = Pickup Current setting pickup = Reset Time in seconds (assuming energy capacity is 100% and : Timed) RESET RESET 5-212 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 343 = Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed) RESET Recloser curves The L60 uses the FlexCurve feature to facilitate programming of 41 recloser curves. See the FlexCurves settings section earlier in this chapter for details. 5.6.8.3 Phase time overcurrent (ANSI 51P, IEC PTOC) SETTINGS ...
  • Page 344 — Selects the signal source for the phase time overcurrent protection element. SIGNAL SOURCE — Selects how phase current input quantities are interpreted by the L60. Inputs can be selected as fundamental INPUT phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 345 PHASE IOC1 BLOCK A: Range: FlexLogic operand   PHASE IOC1 BLOCK C: Range: FlexLogic operand  PHASE IOC1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset PHASE IOC1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-215...
  • Page 346 Range: 0.000 to 3.000 pu in steps of 0.001  THRESHOLD: 0.700 pu PHASE DIR 1 BLOCK Range: No, Yes  WHEN V MEM EXP: No PHASE DIR 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset 5-216 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 347 VBA × (1∠ECA) angle of IC Mode of operation When the function is “Disabled” or the operating current is below 5% × CT nominal, the element output is logic “0” • L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-217...
  • Page 348 10 ms must be added to all the instantaneous protection elements under the supervision of the phase directional element. If current reversal is of concern, a longer delay—in the order of 20 ms—is needed. 5-218 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 349: Neutral Current

       NEUTRAL IOC1 See page 5-221     NEUTRAL IOC4    NEUTRAL See page 5-222   DIRECTIONAL OC1  NEUTRAL   DIRECTIONAL OC2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-219...
  • Page 350 — This setting selects the signal source for the neutral time overcurrent protection element. NEUTRAL TOC1 SIGNAL SOURCE — This setting selects how neutral current input quantities are interpreted by the L60. Inputs can be NEUTRAL TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 351 The positive-sequence restraint must be considered when testing for pickup accuracy and response time (multiple of pickup). The operating quantity depends on how test currents are injected into the relay (single-phase injection: × ; three-phase pure zero-sequence injection: × 0.9375 injected injected L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-221...
  • Page 352 NEUTRAL DIR OC1 Range: 0.00 to 250.00 Ω in steps of 0.01  OFFSET: 0.00 Ω NEUTRAL DIR OC1 FWD Range: –90 to 90° in steps of 1  ECA: 75° Lag 5-222 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 353 The following tables define the neutral directional overcurrent element. V_0 is the zero-sequence voltage, I_0 is the zero-sequence current, ECA is the element characteristic angle, and IG is the ground current. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-223...
  • Page 354 This allows for better protection coordination. Take the bias into account when using the neutral directional overcurrent element to directionalize other protection elements. 5-224 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 355 If "Dual-V" polarizing is selected, "Voltage" polarizing is performed and "Current" polarizing is ignored if the voltage polarizing signal is valid; otherwise "Current" polarizing is performed if the current polarizing signal is valid. If neither of them is valid, neither forward nor reverse indication is given. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-225...
  • Page 356 — This setting defines the pickup level for the overcurrent unit of the element in the reverse NEUTRAL DIR OC1 REV PICKUP direction. When selecting this setting, keep in mind that the design uses a positive-sequence restraint technique for the “Calculated 3I0” mode of operation. 5-226 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 357: Wattmetric Ground Fault

    WATTMETRIC GND FLT 1 Range: Calculated IN, Measured IG  CURR: Calculated IN WATTMETRIC GND FLT 1 Range: 0.002 to 30.000 pu in steps of 0.001  OC PKP: 0.060 pu L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-227...
  • Page 358 WATTMETRIC GND FLT 1 PWR PKP the 1 pu voltage as specified for the overvoltage condition of this element, and 1 pu current as specified for the overcurrent condition of this element. 5-228 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 359   FlexCurve ------- - Eq. 5-22   Again, the FlexCurve timer starts after the definite time timer expires. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-229...
  • Page 360 — This setting is applicable if the is set to Inverse and WATTMETRIC GND FLT 1 MULTIPLIER WATTMETRIC GND FLT 1 CURVE defines the multiplier factor for the inverse time delay. 5-230 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 361: Ground Current

    Figure 5-124: Wattmetric zero-sequence directional logic 5.6.11 Ground current 5.6.11.1 Menu SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  GROUND CURRENT  GROUND CURRENT  GROUND TOC1 See below    L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-231...
  • Page 362 — This setting selects the signal source for the ground time overcurrent protection element. GROUND TOC1 SIGNAL SOURCE — This setting selects how ground current input quantities are interpreted by the L60. Inputs can be GROUND TOC1 INPUT selected as fundamental phasor magnitudes or total waveform RMS magnitudes as required by the application.
  • Page 363 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s GROUND IOC1 BLOCK: Range: FlexLogic operand  GROUND IOC1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset GROUND IOC1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-233...

  • Page 364: Negative Sequence Current

     NEG SEQ DIR OC2   The L60 provides two negative-sequence time overcurrent elements, two negative-sequence instantaneous overcurrent elements, and two negative-sequence directional overcurrent elements. For information on the negative sequence time overcurrent curves, see the Inverse TOC Curve Characteristics section earlier.
  • Page 365 NEG SEQ IOC1 Range: 0.000 to 30.000 pu in steps of 0.001  PICKUP: 1.000 pu NEG SEQ IOC1 PICKUP Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 0.00 s L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-235...
  • Page 366 SOURCE: SRC 1 NEG SEQ DIR OC1 Range: 0.00 to 250.00 ohms in steps of 0.01  OFFSET: 0.00 Ω NEG SEQ DIR OC1 Range: Neg Sequence, Zero Sequence  TYPE: Neg Sequence 5-236 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 367 CT errors, since the current is low. The operating quantity depends on the way the test currents are injected into the L60. For single phase injection •...
  • Page 368 (see the Application of Settings chapter for information on how to calculate this setting). In regular applications, the offset impedance ensures 5-238 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 369 When NEG SEQ DIR OC1 TYPE selecting this setting, keep in mind that the design uses a positive-sequence restraint technique. Figure 5-130: Negative-sequence directional OC1 logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-239...

  • Page 370: Breaker Failure (Ansi 50Bf)

    BF1 N AMP LOSET Range: 0.001 to 30.000 pu in steps of 0.001  PICKUP: 1.050 pu BF1 LOSET TIME Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s 5-240 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 371 For the L60 relay, the protection trip signal initially sent to the breaker is already programmed as a trip output. The protection trip signal does not include other breaker commands that are not indicative of a fault in the protected zone.
  • Page 372 BREAKER FAILURE OUTPUT RELAY PICKUP (1/4 cycle) FAULT cycles OCCURS 827083A6.CDR The current supervision elements reset in less than 0.7 of a power cycle for any multiple of pickup current as shown in the following figure. 5-242 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 373 In microprocessor relays this time is not significant. In L60 relays, which use a Fourier transform, the calculated current magnitude ramps-down to zero one power frequency cycle after the current is interrupted, and this lag needs to be included in the overall margin duration, as it occurs after current interruption.
  • Page 374 Upon operation of the breaker failure element for a single pole trip command, a three-pole trip command needs to be given via output operand BKR FAIL 1 TRIP OP 5-244 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 375 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-133: Single-pole breaker failure, initiate logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-245...
  • Page 376 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-134: Single-pole breaker failure, timers logic 5-246 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 377 CHAPTER 5: SETTINGS GROUPED ELEMENTS Figure 5-135: Three-pole breaker failure, initiate logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-247...
  • Page 378 GROUPED ELEMENTS CHAPTER 5: SETTINGS Figure 5-136: Three-pole breaker failure, timers logic 5-248 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 379: Voltage Elements

    The time delay is adjustable from 0 to 600.00 seconds in steps of 0.01. The undervoltage elements can also be programmed to have an inverse time delay characteristic. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-249...
  • Page 380 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s PHASE UV1 MINIMUM Range: 0.000 to 3.000 pu in steps of 0.001  VOLTAGE: 0.100 pu PHASE UV1 BLOCK: Range: FlexLogic operand  5-250 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 381 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s PHASE OV1 BLOCK: Range: FlexLogic Operand  PHASE OV1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset PHASE OV1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-251...
  • Page 382 Range: 0.00 to 600.00 s in steps of 0.01  DELAY: 1.00 s NEUTRAL OV1 BLOCK: Range: FlexLogic operand  NEUTRAL OV1 TARGET: Range: Self-reset, Latched, Disabled  Self-reset NEUTRAL OV1 EVENTS: Range: Disabled, Enabled  Disabled 5-252 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 383 There are three negative-sequence overvoltage elements available. Use the negative-sequence overvoltage element to detect loss of one or two phases of the source, a reversed phase sequence of voltage, or a non-symmetrical system voltage condition. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-253...
  • Page 384 Range: Disabled, Enabled  Disabled The L60 contains one auxiliary undervoltage element for each VT bank. This element monitors undervoltage conditions of the auxiliary voltage. selects the voltage level at which the time undervoltage element starts timing. The nominal secondary...
  • Page 385 Range: Disabled, Enabled  Disabled The L60 contains one auxiliary overvoltage element for each VT bank. This element is intended for monitoring overvoltage conditions of the auxiliary voltage. The nominal secondary voltage of the auxiliary voltage channel entered under SYSTEM is the per-unit (pu) base used when setting the SETUP ...

  • Page 386: Control Elements

    The trip bus element allows aggregating outputs of protection and control elements without using FlexLogic and assigning them a simple and effective manner. Each trip bus can be assigned for either trip or alarm actions. Simple trip conditioning such as latch, delay, and seal-in delay are available. 5-256 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 387 TRIP BUS 1 RESET RESET OP operand is pre-wired to the reset gate of the latch, As such, a reset command from the front panel interface or via communications resets the trip bus output. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-257...

  • Page 388: Setting Groups

    Prevents the active setting group from changing when the selected FlexLogic operand is "On." This SETTING GROUPS BLK — can be useful in applications where it is undesirable to change the settings under certain conditions, such as during a control sequence. 5-258 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 389: Selector Switch

    SELECTOR 1 TIME-OUT: Range: 3.0 to 60.0 s in steps of 0.1  5.0 s SELECTOR 1 STEP-UP: Range: FlexLogic operand  SELECTOR 1 STEP-UP Range: Time-out, Acknowledge  MODE: Time-out L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-259...
  • Page 390 (“Acknowledge” mode). When the new position is applied, the relay displays the SELECTOR SWITCH 1: POSITION Z IN USE message. Typically, a user-programmable pushbutton is configured as the stepping up control input. 5-260 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 391 (that is, the three-bit input is not available (0,0,0) or out of range), then the selector switch output is set to position 0 (no output operand selected) and an alarm is established ( SELECTOR 1 PWR ALARM L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-261...
  • Page 392 3BIT A0 3BIT A1 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 5-262 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 393 SETTINGS  CONTROL ELEMENTS  SETTING GROUPS : “Enabled” SETTING GROUPS FUNCTION : “Off” SETTING GROUPS BLK : “SELECTOR 1 POS 2" GROUP 2 ACTIVATE ON : “SELECTOR 1 POS 3" GROUP 3 ACTIVATE ON L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-263...
  • Page 394 Off = 0 3-bit acknowledge 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 5-264 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 395: Trip Output

    Range: 0 to 65.535 s in steps of 0.001  FAULTS: 0.000 s BKR ΦA OPEN: Range: FlexLogic operand  BKR ΦB OPEN: Range: FlexLogic operand  BKR ΦC OPEN: Range: FlexLogic operand  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-265...
  • Page 396 Assign a higher priority to pilot aided scheme outputs than to exclusively local inputs The trip output element works in association with other L60 elements that must be programmed and in-service for successful operation. The necessary elements are: recloser, breaker control, open pole detector, and phase selector. The recloser must also be in the “Reset”...
  • Page 397 This can potentially result in a spurious three-pole operation on a single-line-to-ground internal fault. Delaying tripping on internal faults that follow detection of reverse faults solves the problem. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-267...
  • Page 398 — These settings are used to select an operand to indicates that phase A, B, or BKR ΦA OPEN BKR ΦB OPEN BKR ΦC OPEN C of the breaker is open, respectively. 5-268 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 399 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-150: Trip output logic (Sheet 1 of 2) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-269...
  • Page 400 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-151: Trip output logic (Sheet 2 of 2) 5-270 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 401: Synchrocheck (Ansi 25)

    ΔF. This time is calculated by: ---------------------------- - Eq. 5-26 360° --------------- - × ΔF 2 ΔΦ × where ΔΦ is phase angle difference in degrees ΔF is frequency difference in Hz L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-271...
  • Page 402 Phase VT Phase Phase Phase VT and Auxiliary Auxiliary VT Phase Auxiliary V auxiliary (as set for source Z) Auxiliary VT Auxiliary VT Auxiliary Auxiliary V auxiliary (as set for selected sources) 5-272 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 403 The relay uses the phase channel of a three-phase set of voltages if programmed as part of that source. The relay uses the auxiliary voltage channel only if that channel is programmed as part of the Source and a three-phase set is not. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-273...

  • Page 404: Digital Elements

    SETTINGS  CONTROL ELEMENTS  DIGITAL ELEMENTS  DIGITAL ELEMENT 1(48)  DIGITAL ELEMENT 1 DIGITAL ELEMENT 1 Range: Disabled, Enabled  FUNCTION: Disabled  DIG ELEM 1 NAME: Range: 16 alphanumeric characters  Dig Element 1 5-274 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 405 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). L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-275...
  • Page 406 Using the contact input settings, this input is given an ID name, for example, “Cont Ip 1," and is set “On” when the breaker is closed. The settings to use digital element 1 to monitor the breaker trip circuit are indicated (EnerVista example shown). 5-276 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 407: Digital Counters

    Range: Disabled, Enabled  FUNCTION: Disabled  COUNTER 1 NAME: Range: 12 alphanumeric characters  Counter 1 COUNTER 1 UNITS: Range: six alphanumeric characters  COUNTER 1 PRESET: Range: –2,147,483,648 to +2,147,483,647  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-277...
  • Page 408 If control power is interrupted, the accumulated and frozen values are saved into non-volatile memory during the power-down operation. 5-278 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 409: Monitoring Elements

    See page 5-288   DETECTOR   CT FAILURE 6   DETECTOR  VT FUSE FAILURE 1 See page 5-289     VT FUSE FAILURE 4   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-279...
  • Page 410 — This setting is used to program the delay interval between the time the tripping sequence is BKR 1 ARC AMP DELAY initiated and the time the breaker contacts are expected to part, starting the integration of the measured current. 5-280 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 411 BKR 1 ARC AMP LIMIT Figure 5-157: Arcing current measurement Breaker Contacts Initiate Extinguished Part Total Area = Breaker Arcing Current (kA·cycle) Programmable 100 ms Start Delay Start Stop Integration Integration L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-281...
  • Page 412 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-158: Breaker arcing current logic 5-282 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 413 (contact input indicating the breaker status is off), and no flashover current is flowing. A contact showing the breaker status must be provided to the relay. The voltage difference is not considered as a condition for open breaker in this part of the logic. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-283...
  • Page 414 This application does not require detection of breaker status via a 52a contact, as it uses a voltage difference larger than setting. However, monitoring the breaker contact ensures scheme stability. BRK 1 FLSHOVR DIFF V PKP 5-284 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 415 (all line breakers open), to well above the maximum line (feeder) load (line/feeder connected to load). L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-285...
  • Page 416 A six-cycle time delay applies after the selected FlexLogic operand resets. — This setting specifies the time delay to operate after a pickup condition is detected. BRK FLSHOVR PKP DELAY 5-286 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 417 CHAPTER 5: SETTINGS CONTROL ELEMENTS Figure 5-159: Breaker flashover logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-287...
  • Page 418 CT FAIL 1 3V0 INPUT — Specifies the pickup value for the 3V_0 source. CT FAIL 1 3V0 INPUT PICKUP — Specifies the pickup delay of the CT failure element. CT FAIL 1 PICKUP DELAY 5-288 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 419 Once the fuse failure condition is declared, it is sealed-in until the cause that generated it disappears. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-289...
  • Page 420 5.7.9.6 Open pole detector SETTINGS  CONTROL ELEMENTS  MONITORING ELEMENTS  OPEN POLE  OPEN POLE OPEN POLE FUNCTION: Range: Disabled, Enabled   Disabled OPEN POLE BLOCK: Range: FlexLogic operand  5-290 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 421 When the “Traditional” mode is selected, then an open pole is declared only after the breaker L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-291...
  • Page 422 “Enabled” and the setting to “On” (see the Breaker Control section earlier in this chapter for details). BREAKER 2 OUT OF SV Figure 5-162: Open pole detector logic (Sheet 1 of 2) 5-292 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 423 Range: FlexLogic operand  THERM PROT 1 BLOCK: Range: FlexLogic operand  THERMAL PROTECTION 1 Range: Self-reset, Latched, Disabled  TARGET: Self-reset THERMAL PROTECTION 1 Range: Disabled, Enabled  EVENTS: Disabled L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-293...
  • Page 424 The reset time of the thermal overload protection element is also time delayed using following formula:   τ × ------------------------ -   Eq. 5-29   – where τ = thermal protection trip time constant = a minimum reset time setting 5-294 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 425 IEC255-8 cold curve or hot curve equations op(In) is the reset time calculated at index n as per the reset time equation rst(In) L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-295...

  • Page 426: Pilot Schemes

    Range: Disabled, Enabled   FUNCTION: Disabled POTT PERMISSIVE Range: Disabled, Enabled  ECHO: Disabled POTT RX PICKUP Range: 0.000 to 65.535 s in steps of 0.001  DELAY: 0.000 s 5-296 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 427 , then terminated at after the pickup of POTT RX PICKUP DELAY TRANS BLOCK PICKUP DELAY the original signal, and eventually, locked-out for TRANS BLOCK RESET DELAY POTT TX L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-297...
  • Page 428 Typically, the output operand should be programmed to initiate a trip, breaker fail, and autoreclose, and drive a user-programmable LED as per user application. 5-298 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 429: Autoreclose (Ansi 79)

    Mode 2 Activation: Range: FlexLogic operand  Mode 3 Activation: Range: FlexLogic operand  Mode 4 Activation: Range: FlexLogic operand  AR MAX NUMBER OF Range: 1, 2, 3, 4  SHOTS: 2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-299...
  • Page 430 Range: FlexLogic operand  AR PAUSE: Range: FlexLogic operand  AR INCOMPLETE SEQ Range: 0 to 655.35 s in steps of 0.01  TIME: 5.00 s AR BLOCK BKR2: Range: FlexLogic operand  5-300 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 431 For the three-pole reclose programs (modes 3 and 4), an FlexLogic operand is set. This operand can be used in AR FORCE 3-P connection with the tripping logic to cause a three-pole trip for single-phase faults. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-301...
  • Page 432 The pause signal freezes all four dead timers. When the ‘pause’ signal disappears the autoreclose cycle is resumed by continuing the shot timer it was left at when paused. 5-302 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 433 (there is no initiating signal and the breakers are closed), the reset timer times out, returning the scheme to the reset state, with the shot counter set to 0, making it ready for a new reclose cycle. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-303...
  • Page 434 The shot counter is not at 0; that is, the scheme is not in the reset state. This ensures a second trip is three-pole when reclosing onto a permanent single phase fault. • 1.25 cycles after the single-pole reclose is initiated by the signal AR 1P INIT 5-304 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 435 Instead, the priority is given to the operand. AR 3P INIT — This setting selects a FlexLogic operand that indicates a multi-phase fault. Set the operand value to AR MULTI-P FAULT zero for single-phase to ground faults. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-305...
  • Page 436 1 is blocked. When set to “Yes” the closing command is transferred direct to breaker 2 without waiting the transfer time. When set to “No” the closing command is blocked by the AR BKR1 BLK signal and the scheme will be sent to lockout by the incomplete sequence timer. 5-306 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 437 — This setting is used in breaker-and-a-half applications to allow the autoreclose control function to AR BUS FLT INIT 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. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-307...
  • Page 438 However, a FlexLogic operand, FAIL, is asserted if either simultaneous multiple activations are AR MODE SWITCH initiated, or a single activation is initiated but recloser is already in progress. 5-308 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 439 In addition, the current AR mode is available as FlexLogic Operands because AR Mode equals to 1, 2, 3, and 4 respectively so that it can be monitored and logged. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-309...
  • Page 440 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-169: Single-pole autoreclose logic (Sheet 2 of 3) 5-310 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 441 (To sheet 1) FLEXLOGIC OPERAND BUS-FLT INIT 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 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-311...
  • Page 442 CONTROL ELEMENTS CHAPTER 5: SETTINGS Figure 5-171: Example of reclosing sequence 5-312 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 443: Inputs/Outputs

    The DC input voltage is compared to a user-settable threshold. A new contact input state must be maintained for a user-settable debounce time in order for the L60 to validate the new contact state. In the following figure, the debounce time is set at 2.5 ms;...
  • Page 444 For example, to use contact input H5a as a status input from the breaker 52b contact to seal-in the trip relay and record it in the Event Records menu, make the following settings changes: 5-314 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 445: Virtual Inputs

    FlexLogic equation, it likely needs to be lengthened in time. A FlexLogic timer with a delayed reset can perform this function. Figure 5-173: Virtual inputs logic L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-315...

  • Page 446: Contact Outputs

    The most dependable protection of the initiating contact is provided by directly measuring current in the tripping circuit, and using this parameter to control resetting of the initiating relay. This scheme is often called trip seal-in. This can be realized in the L60 using the FlexLogic operand to seal-in the contact output as follows: Cont OP 1 IOn “Cont Op...
  • Page 447 INPUTS/OUTPUTS The L60 latching output contacts are mechanically bi-stable and controlled by two separate (open and close) coils. As such they retain their position even if the relay is not powered up. The relay recognizes all latching output contact cards and populates the setting menu accordingly.

  • Page 448: Virtual Outputs

    5.8.4 Virtual outputs SETTINGS  INPUTS/OUTPUTS  VIRTUAL OUTPUTS  VIRTUAL OUTPUT 1(96)  VIRTUAL OUTPUT 1 VIRTUAL OUTPUT 1 ID Range: up to 12 alphanumeric characters  Virt Op 1  5-318 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 449: Resetting

    — This setting allows the user to assign a descriptive name to the direct input. DIRECT INPUT 1 NAME — Represents the source of direct input 1. The specified direct input is driven by the device DIRECT INPUT 1 DEVICE ID identified here. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-319...
  • Page 450 Assume that contact input 1 from UR IED 2 is to be used by UR IED 1. The following settings are applied (Direct Input 5 and bit number 12 are used, as an example). UR IED 1: = “2” DIRECT INPUT 5 DEVICE ID = “12” DIRECT INPUT 5 BIT NUMBER 5-320 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 451 (if any default state is set to “On”), or to trip the bus on any overcurrent condition (all default states set to “Off”). Example 3: Pilot-aided schemes Consider a three-terminal line protection application shown in the following figure. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-321...
  • Page 452 5" (forward a message from 1 to 3) DIRECT OUT 3 OPERAND "DIRECT INPUT 6" (forward a message from 3 to 1) DIRECT OUT 4 OPERAND The figure shows the signal flow among the three IEDs. 5-322 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 453: Teleprotection

    The “Latest/On” and “Latest/Off” values freeze the input in case of lost communications. If the latest state is not known, such as after relay power-up but before the first communication exchange, then the input defaults to logic 1 for “Latest/ On” and logic 0 for “Latest/Off.” L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-323...
  • Page 454 (same for 1-2...1-16) (On 3-terminal system or 2-terminal SETTING with redundant channel) FLEXLOGIC OPERAND TELEPROT OUTPUT 2-1: (same for 2-2...2-16) Fail TELEPRO INPUT 2-1 On Off (Flexlogic Operand) (same for 1-2...1-16) 842750A2.CDR 5-324 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 455: Transducer Inputs/Outputs

    VALUE: 0.000 The L60 is provided with optional DCmA capability. This feature is specified as an option at the time of ordering. See the Order Codes section in chapter 2 for details. Hardware and software are provided to receive signals from external transducers and to convert these signals into a digital format for use as required.

  • Page 456: Rtd Inputs

    1.5 pu. FlexElement operands are available to FlexLogic for further interlocking or to operate an output contact directly. See the following table for reference temperature values for each RTD type. 5-326 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 457: Dcma Outputs

    Range: –90.000 to 90.000 pu in steps of 0.001  MIN VAL: 0.000 pu DCMA OUTPUT H1 Range: –90.000 to 90.000 pu in steps of 0.001  MAX VAL: 1.000 pu L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-327...
  • Page 458 The setting is entered in per-unit values. The base units are defined in the same manner as the FlexElement base units. 5-328 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 459 The minimum and maximum power values to be monitored (in pu) are: 0 kA 6.3 kA minimum current --------- - 0 pu, maximum current ------------- - 1.26 pu Eq. 5-40 5 kA 5 kA L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-329...

  • Page 460: Testing

    0.005 × 230.94 kV + 1.27 kV = 2.42 kV. 5.10 Testing 5.10.1 Test mode function SETTINGS  TESTING  TEST MODE FUNCTION  TESTING TEST MODE Range: Disabled, Isolated, Forcible  FUNCTION: Disabled  5-330 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 461: Test Mode Forcing

    CHAPTER 5: SETTINGS TESTING The L60 provides a test facility to verify the functionality of contact inputs and outputs, some communication channels and the phasor measurement unit (where applicable), using simulated conditions. The test mode can be in any of three states: Disabled, Isolated, or Forcible.

  • Page 462: Force Contact Inputs

    If set to “Freeze,” the output retains its position at the instant before the was Forcible and the TEST MODE FUNCTION operand selected by the setting was On, regardless of later changes in the status of the operand TEST MODE FORCING 5-332 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 463 While the selected operand is Off, the output behaves as it does when in service. On restart, the setting and the force contact input and force contact output settings revert TEST MODE FORCING to their default states. NOTE L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 5-333...
  • Page 464 TESTING CHAPTER 5: SETTINGS 5-334 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 465: Actual Values

      RxGOOSE See page 6-5   STATISTICS  AUTORECLOSE See page 6-6    DIGITAL COUNTERS See page 6-6    SELECTOR SWITCHES See page 6-6   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 466     ACTUAL VALUES  FAULT REPORT See page 6-21   RECORDS   EVENT RECORDS See page 6-21     OSCILLOGRAPHY See page 6-22   L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 467: Status

    6.2.3 RxGOOSE boolean inputs ACTUAL VALUES  STATUS  RxGOOSE BOOLEAN  RxGOOSE BOOLEAN RxGOOSE BOOLEAN 1 Range: On, Off    RxGOOSE BOOLEAN 128 Range: On, Off  L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 468: Rxgoose Dps Inputs

    STATUS CHAPTER 6: ACTUAL VALUES The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. 6.2.4 RxGOOSE DPS inputs ACTUAL VALUES ...

  • Page 469: Virtual Outputs

    Range: On, Off  The L60 is provided with optional IEC 61850 capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. actual value does not consider RxGOOSE that are not configured or are not used by any RxGOOSE All RxGOOSE Online Input.

  • Page 470: Autoreclose

    PARAM 1: Off Range: On, Off    PARAM 256: Off Range: On, Off  There are 256 FlexState bits available. The second line value indicates the state of the given FlexState bit. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 471: Ethernet

    PTP - IRIG-B Delta being received via PTP and that being received via IRIG-B. A positive value indicates that PTP time is fast compared to IRIG- B time. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 472: Direct Inputs

    ACTUAL VALUES  STATUS  TELEPROT CH TESTS  TELEPROT CH TESTS CHANNEL 1 Range: n/a, FAIL, OK   STATUS: n/a CHANNEL 1 LOST Range: 1 to 65535 in steps of 1  PACKETS: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 473: Remaining Connection Status

    N60 is 4. The maximum number for the C60 is 2. The maximum number is 1 for other products with a PMU. The remaining number of aggregators displays here. 6.2.20 Parallel Redundancy Protocol (PRP) The Parallel Redundancy Protocol (PRP) defines a redundancy protocol for high availability in substation automation networks. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 474: Metering

    Range: 0 to 4G, blank if PRP disabled  The L60 is provided with optional PRP capability. This feature is specified as a software option at the time of ordering. See the Order Codes section in chapter 2 for details.
  • Page 475 6.3.1.2 UR convention for measuring phase angles All phasors calculated by URs and used for protection, control and metering functions are rotating phasors that maintain the correct phase angle relationships with each other at all times. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-11...
  • Page 476 WYE-connected instrument transformers • ABC phase rotation: • ACB phase rotation: -- V -- V -- V -- V -- V -- V The above equations apply to currents as well. 6-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 477 * The power system voltages are phase-referenced – for simplicity – to V and V , respectively. This, however, is a relative matter. It is important to remember that the L60 displays are always referenced as specified under SETTINGS  SYSTEM SETUP  POWER SYSTEM  FREQUENCY AND PHASE REFERENCE The example above is illustrated in the following figure.

  • Page 478: Sources

     0.000 A 0.0° SRC 1 ZERO SEQ I0:  0.000 A 0.0° SRC 1 POS SEQ I1:  0.000 A 0.0° SRC 1 NEG SEQ I2:  0.000 A 0.0° 6-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 479  0.000 V 0.0° SRC 1 ZERO SEQ V0:  0.000 V 0.0° SRC 1 POS SEQ V1:  0.000 V 0.0° SRC 1 NEG SEQ V2:  0.000 V 0.0° L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-15...
  • Page 480 φc: 0.000 VA SRC 1 POWER FACTOR  3φ: 1.000 SRC 1 POWER FACTOR  φa: 1.000 SRC 1 POWER FACTOR  φb: 1.000 SRC 1 POWER FACTOR  φc: 1.000 6-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 481: Synchrocheck

    S = V x Î x Î x Î Eq. 6-1 When VTs are configured in delta, the L60 does not calculate power in each phase and three-phase power is measured as S = V x Î x Î Eq. 6-2...

  • Page 482: Flexelements

     0.000 The L60 is provided with optional GOOSE communications capability. This feature is specified as a software option at the time of ordering. See the Order Codes section of chapter 2 for details. The RxGOOSE Analog values display in this menu. The RxGOOSE Analog values are received via IEC 61850 GOOSE messages sent from other devices.

  • Page 483: Wattmetric Ground Fault

    ANGLE: 0.00 DEG CA LOOP RESISTANCE  RCA: 0.00 Ohms CA LOOP REACTANCE  XCA: 0.00 Ohms CA LOOP IMPEDANCE  ZCA: 0.00 Ohms CA LOOP IMPEDANCE  ANGLE: 0.00 DEG L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-19...
  • Page 484 (ZAG, ZBG, and ZCG) are reset to zero, including magnitude and angle. Note that VTs of the distance source must be connected in Wye if the ground distance element is enabled. 6-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 485: Records

     CLEAR RECORDS Only major output operands generate events, not every operand. Elements that assert output per phase, for example, log operating phase output only without asserting the common three-phase operand event. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-21...

  • Page 486: Oscillography

    BKR 1 ARCING AMP φC:  0.00 kA2-cyc BKR 1 OPERATING TIME  φA: 0 ms BKR 1 OPERATING TIME  φB: 0 ms BKR 1 OPERATING TIME  φC: 0 ms 6-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 487: Product Information

    FRONT PANEL PROGRAM Range: 0.00 to 655.35  REVISION: 2.01 Revision number of faceplate program firmware. COMPILE DATE: Range: YYYY/MM/DD HH:MM:SS  2013/09/15 04:55:16 Date and time when product firmware was built. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 6-23...
  • Page 488  2013/09/15 16:41:32 Date and time when the FPGA was built. The shown data is illustrative only. A modification file number of 0 indicates that, currently, no modifications have been installed. 6-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 489: Commands And Targets

    The commands menu contains relay directives intended for operations personnel. All commands can be protected from unauthorized access via the command password; see the Security section of chapter 5 for details. The following flash message appears after successfully command entry. COMMAND EXECUTED L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 490: Virtual Inputs

    This menu contains commands for clearing historical data such as the event records. Data is cleared by changing a command setting to “Yes” and pressing the key. After clearing data, the command setting automatically reverts to ENTER “No.” L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 491: Set Date And Time

    — This command causes the relay to scan the backplane for the hardware modules and update the UPDATE ORDER CODE order code to match. If an update occurs, the following message displays. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 492: Security

    Although the diagnostic information is cleared before the L60 is shipped from the factory, the user can want to clear the diagnostic information for themselves under certain circumstances. For example, you clear diagnostic information after replacement of hardware. Once the diagnostic information is cleared, all self-checking variables are reset to their initial state and diagnostics restart from scratch.

  • Page 493: Target Messages

      Each L60 element with a TARGET setting has a target message that when activated by its element is displayed in sequence with any other currently active target messages in the menu. In the example shown, the Phase TOC4 and Digital TARGETS Element 48 target settings are active and so have their targets displayed.
  • Page 494 Contact Factory (xxx) • Latched target message: Yes. • Description of problem: One or more installed hardware modules is not compatible with the L60 order code. • How often the test is performed: Module dependent. • What to do: Contact the factory and supply the failure code noted in the display. The “xxx” text identifies the failed module (for example, F8L).
  • Page 495 What to do: Ensure the following: – The Ethernet cable(s) are properly connected. – At least one PTP grandmaster-capable clock is functioning. – If strict PP is enabled, that entire network is PP compliant. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 496 How often the test is performed: The self-test is activated when no message is received within the expected time interval, which is the time-to-live time in the previous message. This time can be from milliseconds to minutes. • What to do: Check GOOSE setup. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 497 Description of problem: The ambient temperature is greater than the maximum operating temperature (+80°C). • How often the test is performed: Every hour. • What to do: Remove the L60 from service and install in a location that meets operating temperature standards. UNEXPECTED RESTART: Press “RESET” key •...
  • Page 498 TARGETS MENU CHAPTER 7: COMMANDS AND TARGETS 7-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 499: Application Of Settings

    8.1 87PC phase comparison element 8.1.1 Overview The L60 provides high-speed protection of transmission lines against all phase and ground faults when operated in the “mixed-excitation” mode. The term “mixed-excitation”, when applied to phase comparison, describes a scheme that first mixes different sequence quantities in a given proportion and phase angle, then performs a phase-comparison based on this mix.
  • Page 500 The L60 allows you to check and set channel symmetry without using an oscilloscope, by means of FlexLogic operands and applying the corresponding current to the relays, which in turn key the PLC and consequently measure MARK and SPACE signals on the oscillography.

  • Page 501: Settings Example

    Different methods can be used. The L60 allows the customer to check and set phase delay without using an oscilloscope and by means of FlexLogic operands and applying the corresponding current to both relays. Oscillography shows the time difference (including PLC delay and line propagation time) between local and remote signals.

  • Page 502: Distance/Backup Supervision

    FD INPUT 8.2 Distance/backup supervision 8.2.1 Overview As an economical approach to supply customer load, many high voltage (HV) lines have transformers tapped to the lines. The figure shows a typical configuration. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 503: Lines With Tapped Transformers

    LV bus fault can result in a loss of sensitivity. If the tapped transformer is a source of zero sequence infeed, then the L60 zero-sequence current removal has to be enabled as described in the next section.

  • Page 504: Transformer Load Currents

    8.2.3 Transformer load currents The L60 can be applied on the line with a tapped transformer. Since the tapped line can be energized from one terminal only, or there can be a low current flowing through the line, the phase-comparison element must set to provide stability.

  • Page 505: Tractional Load

    8.2.6 Tractional load Where tractional load is tapped from the line protected by the L60, significant and variable negative-sequence current can exist on the line, thereby not allowing sensitive FDL and FDH settings. On such lines, it is beneficial to detect faults based on change in the sequence components of the currents.
  • Page 506 2%. If an internal fault is detected, the challenge is to provide starting transmitting signals at both ends and to have enough operating quantity for arming FDH to operate and to allow tripping. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 507: Single-Pole Tripping Applications

    DISTANCE/BACKUP SUPERVISION 8.2.8 Single-pole tripping applications The L60 provides functionality for single-pole tripping from 87PC, distance functions, or instantaneous overcurrent elements via the trip output element. 87PC can detect internal faults on the line but not faulted phases, since the phase currents are combined in one quantity.

  • Page 508: Phase Distance

    The current supervision alone does not prevent maloperation in such circumstances. Keep in mind that the fuse failure element provided on the L60 needs some time to detect fuse fail conditions. This can create a race between the instantaneous zone 1 and the fuse failure element. Therefore, for maximum security, it is recommended to both set the current supervision above the maximum load current and use the fuse failure function.

  • Page 509: Ground Distance

    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 operation. This provides increased coverage for high-resistance faults. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 8-11...

  • Page 510: Series Compensated Lines

    This situation is encountered when it is desired to account for the zero sequence inter-circuit mutual coupling. This is not a problem for the ground distance elements in the L60 that do have a current reversal logic built into their design as part of the technique used to improve ground fault directionality.
  • Page 511 As the characteristics of sub-synchronous oscillations are in complex relations with fault and system parameters, no solid setting recommendations are given with respect to extra security margin for sub-synchronous oscillations. It is strongly recommended to use a power system simulator to verify the reach settings or to use an adaptive L60 feature for dynamic reach control.

  • Page 512: Understanding L60 Oscillography

    8.5 Understanding L60 oscillography 8.5.1 Overview The L60 oscillography feature is a powerful tool for tuning, commissioning, and troubleshooting. It also helps to understand the theory of phase-comparison and how the L60 relay incorporates standard analog phase comparison principles. The...

  • Page 513: Two-Breaker Configuration

    8.5.2 Two-breaker configuration The L60 has extra security when two CTs are brought into the relay individually and summed internally. Two currents are processed separately to derive the operating signal for each breaker, which is then used for fault detectors and the forming of positive and negative squares.
  • Page 514 UNDERSTANDING L60 OSCILLOGRAPHY CHAPTER 8: APPLICATION OF SETTINGS 8-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 515: Theory Of Operation

    Such a signal transmitted at B and received at A can be compared with the current at A to determine whether the two quantities are in phase or out of phase with each other. Conversely, the current at terminal B can be compared with the signal received from terminal A. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 516 ON, then the MARK block corresponds to a received remote signal while the SPACE block corresponds to no signal. Conversely, if the negative portion of the current wave keyed the transmitter to ON, then the SPACE block represents the received signal. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 517 Phase angle differences between the currents entering both ends of the line as a result of phase angle differences in the driving system voltages • Load and charging currents of the line • Transit time of the communication signal • Unsymmetrical build-up and tail-off times of the receiver L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 518 Figure 2C illustrates a tripping scheme while Figure 2D a blocking scheme. Here again, the integrator is, in practice, actually set for 3 to 4 ms. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 519 Single-Phase Comparison Blocking Scheme Principle figure that follows. This is a somewhat more fully developed version of 2D, and the same logic is present at both ends of a two-terminal line. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 520 OVERVIEW CHAPTER 9: THEORY OF OPERATION Figure 9-4: Three-terminal line phase comparison Figure 9-5: Single-phase comparison blocking scheme principle L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 521: Variations In Phase Comparison Schemes

    Table 9-1: Fault types Type of fault Sequence components Positive Negative Zero Single-Phase-to-Ground Phase-to-Phase Double-Phase-to-Ground Three-Phase L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 522 Thus, it appears that if one single sequence component of current were to be selected for use to make the phase comparison, then the positive sequence component suffices. Actually, this is not the case in many if not most of the applications because of the presence of through-load current during the fault. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 523 Since the load component of current is equal to the vector difference between Bus X and Bus Y voltages divided by the impedance of the line, and since the prefault voltage (at L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 524 Also, for the values of currents assumed, different results would be obtained for other types of faults. 9-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 525 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-11...

  • Page 526: Blocking Versus Tripping Schemes

    The communication signal arrives in a MARK-SPACE arrangement that represents the positive and negative half-cycles of current at the transmitted end of the line. Actually this is not possible for the following reasons: 9-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 527 These are employed directly over the power line as are the ON-OFF types of equipment. Finally there is the frequency-shift equipment that operates in and occasionally outside the power line carrier spectrum. These are employed over microwave and leased facilities. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-13...
  • Page 528 SQ AMPs are attempting to trip via AND1. Thus, the receivers supply the bottom input to AND1, and tripping takes place when FDH operates to provide the third input. 9-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 529 52/b switch is open and keying is under control of the SQ AMP. While on the surface the use of 52/b appears simple and direct, the following problems arise that can require more complex logic and station wiring: L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-15...
  • Page 530 12 is exactly the same except for the high frequency shift which is not used in the protection scheme. While only one of the two frequencies of the frequency-shift equipment is used in the protection scheme, the second frequency does perform a 9-16 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 531 This approach tends to make the blocking scheme resemble the tripping scheme since the receiver must now indicate an intact channel in order to trip. • Aside from the ability to accommodate continuous monitoring, the frequency-shift channel provides little advantage over the ON-OFF carrier channel. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-17...
  • Page 532 In order to make such a selection, consideration of the pilot pair, its protection, and its physical location in relation to power conductors must be evaluated. 9-18 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 533: Single Versus Dual Phase Comparison

    The differences are as follows: • The dual scheme uses two separate comparer integrator combinations, one for the positive half-cycle and the other for the negative half-cycle. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-19...
  • Page 534 This scheme is simpler than that of the previous scheme but probably is not as secure. 9-20 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 535: Refinements To Basic Schemes

    Frequency shift channels are generally symmetrical in their response when the discriminator in the receiver is balanced. If the discriminator is biased to one side or the other, the receiver output tends to favor the side to which it is biased. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-21...
  • Page 536 This is undesirable because it introduces an error in the phase comparison. There is no way to eliminate this phase delay but there is a way to compensate for it. This compensation is accomplished by the phase delay timer in the comparer input circuit. 9-22 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 537 NOT input to AND4. This blocking of a trip output persists for the drop-out time setting of the transient blocking timer after the AND3 output disappears as a result of FDH resetting or the trip integrator producing an output. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-23...

  • Page 538: Multi-Terminal Lines

    To this point, the discussions have pertained principally to two-terminal lines. Phase-comparison schemes are often applied to lines having more than two terminals and these applications differ depending on the channel equipment. 9-24 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 539: Charging Current Compensation

    For short transmission lines, the charging current is a small factor and can therefore be treated as an unknown error. In this application, the L60 can be deployed without voltage sensors and the line charging current is included as a constant term in the total variance, increasing the differential restraint current.
  • Page 540 Since the zero- sequence voltage is not available, the L60 cannot compensate for the zero sequence current. The compensation scheme continues to work with the breakers open, provided that the voltages are measured on the line- side of the breakers.

  • Page 541: L60 Signal Processing

    The L60 samples currents and voltage inputs at a rate of 64 samples per cycle. Current samples are pre-filtered using band-pass Finite Response Filters (FIR), with a weighted average of signal samples in a selected data window, to remove the decaying DC component and low-frequency distortions.
  • Page 542 The raw LOC-al pulses (Positive and Negative polarity) are produced disregarding the FDL and FDH flags. The fault detector flags are used in the dual-breaker, key, and trip logic. The raw pulses are calculated as follows. 9-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 543 Where FDL1 and FDL2 are ORed mixed current signals and the advanced fault detectors are as per the 87PC logic, and • FDH = FDH1 OR FDH2 where FDH1 and FDH2 are ORed mixed current signals and the advanced fault detectors are as per the 87PC logic. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-29...
  • Page 544 It must be kept in mind that the positive and negative pulses do not necessarily complement each other, and therefore, one must not substitute not(positive polarity) = negative polarity. 9-30 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 545 Distinction between the delay and asymmetry is relatively straightforward: if the rising edges and the falling L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-31...
  • Page 546 TIME 831806A1.CDR The following figure illustrates the alignment algorithm. It shows local current, received RX voltage, and the remote pulse aligned with the local pulses accounting for the channel delay setting. 9-32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 547 The coincidence condition is driving an explicitly implemented integrator (summator). In the L60, the integrator counts up by 10 units if the coincidence input is logic 1, counts down by 5 counts if the coincidence input is momentarily logic 0, and counts down by 20 if the input is in logic 0 for extended periods of time.

  • Page 548: Single-Pole Tripping

    87PC OP 831808A1.CDR The L60 can be programmed to perform an automatic check-back. Under normal system conditions, a relay can initiate transmission and modulate the analog signal to exchange small amounts of information. The ability to abort in cases of system faults is a key to successful deployment.
  • Page 549 • Initiates blocking of protection elements that can potentially maloperate when a breaker pole is open • Instructs the phase selector to de-assert all outputs, as an open pole invalidates calculations L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-35...
  • Page 550 CHAPTER 9: THEORY OF OPERATION The operation of the scheme in a single breaker arrangement is described as follows. The line is protected by a L60 using the 87PC, line pickup, and zone 1 phase and ground distance elements. 87PC and/or zone 1 is configured to issue a single- pole trip when appropriate ( “GND DIST Z1...

  • Page 551: Phase Selection

    (depending on the number of shots programmed). 9.2.2 Phase selection The L60 uses phase relations between current symmetrical components for phase selection. First, the algorithm validates if there is enough zero-sequence, positive-sequence, and negative-sequence currents for reliable analysis. The comparison is adaptive;...
  • Page 552 Asserted when a phase A to B to ground fault is detected PHASE SELECT BCG Asserted when a phase B to C to ground fault is detected PHASE SELECT CAG Asserted when a phase C to A to ground fault is detected 9-38 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 553: Fault Locator

    The single-ended fault location method assumes that the fault components of the currents supplied from the local (A) and remote (B) systems are in phase. The figure shows an equivalent system for fault location. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-39...
  • Page 554 Depending on the fault type, appropriate voltage and current signals are selected from the phase quantities before applying the preceding two equations (the superscripts denote phases, the subscripts denote stations). For AG faults: ⋅ Eq. 9-15 For BG faults: ⋅ Eq. 9-16 9-40 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 555 -- V Eq. 9-22 – – SYS0 -- V – – SYS0 where Z is the equivalent zero-sequence impedance behind the relay as entered under the fault report setting menu. SYS0 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 9-41...
  • Page 556 DATE TIME FAULT TYPE FAULT FAULT LOCATION 3I_0 LOCATOR 1 FAULT# RECLOSE SHOT VA or VAB VB or VBC VC or VCA Vn or V_0 SHOT # FROM 827094A5.CDR AUTO RECLOSURE 9-42 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 557: Maintenance

    This chapter outlines maintenance, repair, storage, and disposal of the hardware and software. 10.1 General maintenance The L60 requires minimal maintenance. As a microprocessor-based relay, its characteristics do not change over time. Expected service life is 20 years for UR devices manufactured June 2014 or later when applied in a controlled indoors environment and electrical conditions within specification.

  • Page 558: Unscheduled Maintenance (System Interruption)

    <destination> is the path and file name of the IID file. If omitted, the file is saved as ur.iid in the command window default directory. An example is TFTP 192.168.1.101 GET ur.iid Feeder1.iid 10-2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 559: Restore Settings

    On a computer on the same subnetwork as the UR device, open a SFTP client application, such as WinSCP. Note that TFTP cannot be used here. Use the device's IP address as the host name. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 10-3...

  • Page 560: Upgrade Firmware

    EnerVista UR Setup software. 10.3 Upgrade firmware The firmware of the L60 device can be upgraded, locally or remotely, using the EnerVista software. Instructions are outlined here and in the Help file under the topic “Upgrading Firmware.”...

  • Page 561: Upgrade Software

    In EnerVista, click the Device Setup button. The window opens. Expand the entry for the UR device. Click the Read Order Code button. The order code and version of the device are populated to the software. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 10-5...

  • Page 562: Replace Module

    Open the enhanced faceplate to the left once the thumb screw has been removed. This allows for easy access 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 L60. Figure 10-4: Modules inside relay with front cover open (enhanced faceplate) 842812A1.CDR...

  • Page 563: Battery

    To avoid injury, ensure that the unit has been powered off for a minimum of three minutes before replacing the battery. Risk of fire if battery is replaced with incorrect type or polarity. To replace the battery: Turn off the power to the unit. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 10-7...

  • Page 564: Replace Battery For Sh/Sl Power Supply

    To remove the front panel, unscrew the bracket on the front left side of the unit. Simultaneously pull the ejector clips at the top and bottom of the power supply module and remove the module. 10-8 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 565: Dispose Of Battery

    Baterie je označena tímto symbolem, který může zahrnovat i uvedena písmena, kadmium (Cd), olovo (Pb), nebo rtuť (Hg). Pro správnou recyklaci baterií vraťte svémudodavateli nebo na určeném sběrném místě. Pro více informací viz: www.recyclethis.info. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 10-9...
  • Page 566 (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. 10-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 567 (Cd), chumbo (Pb), ou o mercúrio (hg). Para uma reciclagem apropriada envie a bateria para o seu fornecedor ou para um ponto de recolha designado. Para mais informação veja: www.recyclethis.info. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL 10-11...

  • Page 568: Clear Files And Data After Uninstall

    .urs files. For the existing installation, upgrading the firmware overwrites the flash memory. Other files can be in standard formats, such as COMTRADE or .csv. 10-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 569: Repairs

    Customers are responsible for shipping costs to the factory, regardless of whether the unit is under warranty. • Fax a copy of the shipping information to the GE Digital Energy service department in Canada at +1 905 927 5098. Use the detailed return procedure outlined at https://www.gedigitalenergy.com/multilin/support/ret_proc.htm...
  • Page 570 DISPOSAL CHAPTER 10: MAINTENANCE 10-14 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 571: A.1 Flexanalog Items

    SRC 1 I_1 Angle Degrees Source 1 positive-sequence current angle 6175 SRC 1 I_2 Mag Amps Source 1 negative-sequence current magnitude 6177 SRC 1 I_2 Angle Degrees Source 1 negative-sequence current angle L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 572 SRC 3 I_2 Mag Amps Source 3 negative-sequence current magnitude 6305 SRC 3 I_2 Angle Degrees Source 3 negative-sequence current angle 6306 SRC 3 Igd Mag Amps Source 3 differential ground current magnitude L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 573 SRC 1 V_0 Mag Volts Source 1 zero-sequence voltage magnitude 6693 SRC 1 V_0 Angle Degrees Source 1 zero-sequence voltage angle 6694 SRC 1 V_1 Mag Volts Source 1 positive-sequence voltage magnitude L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 574 SRC 3 Vbc Mag Volts Source 3 phase BC voltage magnitude 6810 SRC 3 Vbc Angle Degrees Source 3 phase BC voltage angle 6811 SRC 3 Vca Mag Volts Source 3 phase CA voltage magnitude L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 575 Source 1 phase B reactive power 7182 SRC 1 Qc Vars Source 1 phase C reactive power 7184 SRC 1 S Source 1 three-phase apparent power 7186 SRC 1 Sa Source 1 phase A apparent power L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 576 Source 4 phase A reactive power 7276 SRC 4 Qb Vars Source 4 phase B reactive power 7278 SRC 4 Qc Vars Source 4 phase C reactive power 7280 SRC 4 S Source 4 three-phase apparent power L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 577 Synchrocheck 1 delta phase 9220 Synchchk 2 Delta V Volts Synchrocheck 2 delta voltage 9222 Synchchk 2 Delta F Synchrocheck 2 delta frequency 9223 Synchchk 2 Delta Phs Degrees Synchrocheck 2 delta phase L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 578 RTD input 13 actual value 13565 RTD Inputs 14 Value RTD input 14 actual value 13566 RTD Inputs 15 Value RTD input 15 actual value 13567 RTD Inputs 16 Value RTD input 16 actual value L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 579 32450 Dist Zbc Mag Ohms Distance Zbc magnitude 32451 Dist Zbc Angle Degrees Distance Zbc angle 32452 Dist Zca Mag Ohms Distance Zca magnitude 32453 Dist Zca Angle Degrees Distance Zca angle L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 580 GOOSE analog input 26 45636 RxGOOSE Analog27 GOOSE analog input 27 45638 RxGOOSE Analog28 GOOSE analog input 28 45640 RxGOOSE Analog29 GOOSE analog input 29 45642 RxGOOSE Analog30 GOOSE analog input 30 A-10 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 581 APPENDIX A: FLEXANALOG OPERANDS FLEXANALOG ITEMS Address FlexAnalog name Units Description 45644 RxGOOSE Analog31 GOOSE analog input 31 45646 RxGOOSE Analog32 GOOSE analog input 32 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL A-11...
  • Page 582 FLEXANALOG ITEMS APPENDIX A: FLEXANALOG OPERANDS A-12 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 583: B Radius Server Configuration

    10.0.0.2/24 { secret = testing123 shortname = private-network-1 In the <Path_to_Radius>\etc\raddb folder, create a file called dictionary.ge and add the following content. # ########################################################## GE VSAs ############################################################ VENDOR 2910 # Management authorization BEGIN-VENDOR L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 584 (for example user name Tester and password "testpw"). Check that the RADIUS server log file shows the access with an "Access-Accept" entry. Recall that If you tried another third-party tool and it did not work, you can use the FreeRADIUS software from freeradius.net. L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

  • Page 585: Revision History

    C.1 Warranty For products shipped as of 1 October 2013, GE Digital Energy warrants most of its GE manufactured products for 10 years. For warranty details including any limitations and disclaimers, see the GE Digital Energy Terms and Conditions at https://www.gedigitalenergy.com/multilin/warranty.htm...
  • Page 586 1601-0082-AB2 7.3x 1 September 2015 15-2215 Table C-2: Major changes for L60 manual version AB2 (English) Page Description Updated document throughout, including numbers of elements and FlexLogic operands table Added EAC compliance information throughout, including logo on title page, rear panel, added specifications, added life...
  • Page 587 APPENDIX C: MISCELLANEOUS REVISION HISTORY Table C-3: Major changes for L60 manual version AB1 (English) Page Description Updated document throughout and put into new template. Major revision. Updated references to digital inputs/outputs to contact inputs/outputs for consistency Added content for advanced IEC 61850, for example in the Settings and Actual Values chapters...
  • Page 588 REVISION HISTORY APPENDIX C: MISCELLANEOUS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 589 Frequency-Shift Keying Communication File Transfer Protocol COMM Communications FlexElement™ COMP Compensated, Comparison Forward CONN Connection CONT Continuous, Contact Generator CO-ORD Coordination General Electric Central Processing Unit Ground Cyclic Redundancy Code/Check GNTR Generator L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 590 Reclose In Progress MegaVolt-Ampere (total 3-phase) RGT BLD Right Blinder MVA_A MegaVolt-Ampere (phase A) Return Materials Authorization MVA_B MegaVolt-Ampere (phase B) Root Mean Square MVA_C MegaVolt-Ampere (phase C) ROCOF Rate of Change of Frequency L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 591 Phase A to B voltage Phase A to Ground voltage VARH Var-hour voltage Phase B voltage Phase B to A voltage Phase B to Ground voltage Phase C voltage Phase C to A voltage L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 592 ABBREVIATIONS L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 593 ....................5-94 Auxiliary voltage metering ............. 6-16 ANSI device numbers ................2-3 AWG wire size ............ 3-11, 3-29, 3-33, 3-35 Apparent power ..................6-16 Apparent power specifications ............2-25 Back up settings ..............5-45, 10-2 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 594 ................10-12 specifications ..................2-29 LEDs ......................5-319 Control pushbuttons relay records using settings ............5-27 FlexLogic operands ..............5-135 security logs ..................7-4 logic diagram ..................5-97 settings ....................5-95 specifications ..................2-23 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 595 ............5-213, 5-249 quad characteristic ............5-183, 5-191 Delete files and records ............5-27, 10-12 settings ....................5-179 Device authentication ...............5-15 Disturbance detector Device setup ...................3-48 FlexLogic operands ...............5-141 Dielectric strength ................. 3-9 internal ....................5-117 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 596 ..................5-5 Export settings to file ................ 10-2 F485 ......................3-43 Faceplate ..................3-2, 4-15 Factory default reset ............... 5-8, 5-21 Far-End Fault Indication ..............5-32 Fast form-C relay specifications ..........2-28 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 597 ..................2-29 Gateway address .................5-34 IEC CID files ..................... 5-45 GE type IAC curves ................5-211 IED setup ....................3-44 Getting help ....................1-2 IEEE C37.94 communications .......... 3-37, 3-40 IEEE curves ....................5-208 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 598 .....................7-3 Language setting ................5-25 module replacement ..............10-6 Laser module ..................3-28 upgrades ....................10-4 Manufacturing date ................6-23 Maximum CT/VT wire size .............. 3-11 Memory voltage logic diagram ..........5-180 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 599 FlexLogic operands ...............5-138 logic diagrams .................5-292 logic diagram ...................5-254 settings ....................5-290 settings ....................5-253 specifications ..................2-22 specifications ..................2-20 Operating temperature ..............2-32 Operating times ................... 2-15 Operator command to force logoff ..........7-4 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 600 FlexLogic operands ..............5-139 logic diagram .................. 5-216 settings ....................5-215 specifications ..................2-18 Phase overvoltage FlexLogic operands ..............5-140 logic diagram .................. 5-252 settings ....................5-251 specifications ..................2-20 Phase rotation ..................5-115 viii L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 601 EnerVista ................. 5-45 description ...................3-10 using relay ....................7-3 removal to replace battery ............10-7 Recloser curves ..............5-128, 5-213 specifications ..................2-27 Reclosing Power swing blocking ............2-21, 5-199 logic diagrams .................5-308 sequence diagram ................5-312 settings ....................5-299 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 602 ..................7-8 Signal sources settings ....................5-52 description ....................5-5 metering ....................6-14 settings ....................5-115 Single-line diagram ................2-3 Save settings .................... 4-1 Saving setting does not take relay out of service ....5-1 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 603 ..................2-21 settings ..............5-112, 5-323, 5-324 Trouble indicator ..................7-5 specifications ..................2-27 Trouble LED ..................... 3-42 Temperature FlexLogic monitor operand ............5-145 monitor ....................7-9 operating and storage ..............2-32 Test voltages .................... 3-9 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...
  • Page 604 ..................2-23 Wiring diagram ..................3-9 User-programmable pushbuttons Withdrawal from operation ............10-12 FlexLogic operands ...............5-145 Wrong transceiver message ............7-9 logic diagrams .................5-101 settings ....................5-97 specifications ..................2-23 User-programmable self-tests settings ....................5-95 L60 LINE PHASE COMPARISON SYSTEM – INSTRUCTION MANUAL...

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