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2-2
L60 Line Phase Comparison Relay
GE Multilin
2.1 INTRODUCTION
2 PRODUCT DESCRIPTION
2
Figure 2–1: 87PC COMMUNICATIONS
Diagnostic features include a sequence of records capable of storing 1024 time-tagged events. The internal clock used for
time-tagging can be synchronized with an IRIG-B signal or via the SNTP protocol over the Ethernet port. This precise time
stamping allows the sequence of events to be determined throughout the system. Events can also be programmed (via
FlexLogic™ equations) to trigger oscillography data capture which may be set to record the measured parameters before
and after the event for viewing on a personal computer (PC). These tools significantly reduce troubleshooting time and sim-
plify report generation in the event of a system fault.
A faceplate RS232 port may be used to connect to a PC for the programming of settings and the monitoring of actual val-
ues. A variety of communications modules are available. Two rear RS485 ports allow independent access by operating and
engineering staff. All serial ports use the Modbus
®
RTU protocol. The RS485 ports may be connected to system computers
with baud rates up to 115.2 kbps. The RS232 port has a fixed baud rate of 19.2 kbps. Optional communications modules
include a 10BaseF Ethernet interface which can be used to provide fast, reliable communications in noisy environments.
Another option provides two 10BaseF fiber optic ports for redundancy. The Ethernet port supports IEC 61850, Modbus
®
/
TCP, and TFTP protocols, and allows access to the relay via any standard web browser (L60 web pages). The IEC 60870-
5-104 protocol is supported on the Ethernet port. DNP 3.0 and IEC 60870-5-104 cannot be enabled at the same time.
The L60 IEDs use flash memory technology which allows field upgrading as new features are added. The following Single
Line Diagram illustrates the relay functionality using ANSI (American National Standards Institute) device numbers.
TYPICAL 2-TERMINAL APPLICATION
TYPICAL 3-TERMINAL APPLICATION
831788A1.CDR
L60 - 1
CH1
~
~
~
5a
5b
5c
BATT+
Tx1P
Tx1N
~
~
~
6a
6b
6c
BATT-
Rx1P
Rx1N
L60 - 2
CH1
~
~
~
5a
5b
5c
BATT+
Tx1P
Tx1N
~
~
~
6a
6b
6c
BATT-
Rx1P
Rx1N
L60 - 3
CH1
~
~
~
5a
5b
5c
BA
TT+
Tx1P
Tx1N
~
~
~
6a
6b
6c
BA
TT
-
Rx1P
Rx1N
PLC
PLC
PLC
PLC
L60 - 1
CH1
SECOND CHANNEL
FOR DUAL COMPARISON
PLC
~
~
~
5a
5b
5c
BATT+
Tx1P
Tx1N
~
~
~
6a
6b
6c
BATT-
Rx1P
Rx1N
L60 - 2
CH1
~
~
~
5a
5b
5c
BATT+
Tx1P
Tx1N
~
~
~
6a
6b
6c
BATT-
Rx1P
Rx1N
PLC
Summary of Contents for L60
Page 2: ......
Page 4: ......
Page 24: ...1 14 L60 Line Phase Comparison Relay GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1...
Page 42: ...2 18 L60 Line Phase Comparison Relay GE Multilin 2 2 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2...
Page 470: ...D 10 L60 Line Phase Comparison Relay GE Multilin D 1 PROTOCOL APPENDIXD D...
Page 482: ...E 12 L60 Line Phase Comparison Relay GE Multilin E 2 DNP POINT LISTS APPENDIXE E...
Page 498: ...x L60 Line Phase Comparison Relay GE Multilin INDEX Z ZERO SEQUENCE CORE BALANCE 3 9...