3-24
L60 Line Phase Comparison System
GE Multilin
3.2 WIRING
3 HARDWARE
3
3.2.10 L60 CHANNEL COMMUNICATIONS
As described earlier in this chapter, L60 communications 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 customer can upgrade or change the scheme at any time.
The L60 channel interface requires an external battery to drive inputs and outputs. The module can be used with any bat-
tery voltage. However, the battery voltage must be reflected in the
GROUPED ELEMENTS
SETTING GROUP 1(6)
PHASE
COMPARISON ELEMENTS
87PC SCHEME
87PC CH1(2) RX VOLT
settings, which define the acceptable voltage threshold
received from the PLC. The L60 communications outputs are MOSFETs and inputs are implemented with optocouplers,
excluding any galvanic connection between PLC connections and the relay boards.
Figure 3–25: L60 TO PLC CONNECTIONS FOR A TWO-TERMINAL LINE
831784A3.CDR
Transmission (+) channel 1
Station
battery
Reception (+) channel 1
Transmission (–) channel 1
Reception (–) channel 1
Common (+) channel 1
Common (–) channel 1
Transmission (+ )channel 1
Communications inter
face inputs/outputs
~5a
~5b
~5c
~6a
~6b
~6c
~7a
~8a
~7b
~8b
~7c
~8c
BATT+
Tx1P
Tx1N
BATT-
Rx1P
Rx1N
BATT+
Tx2P
Tx2N
BATT-
Rx2P
Rx2N
L60
Station
battery
Power line carrier (PLC)
Reception (–) channel 1
L60 communications 1
Single-phase comparison
L60 communications 2
Dual-phase comparison
Communications inter
face inputs/outputs
~5a
~5b
~5c
~6a
~6b
~6c
~7a
~8a
~7b
~8b
~7c
~8c
BATT+
Tx1P
Tx1N
BATT-
Rx1P
Rx1N
BATT+
Tx2P
Tx2N
BATT-
Rx2P
Rx2N
L60
Power line carrier (PLC)
Summary of Contents for L60
Page 10: ...x L60 Line Phase Comparison System GE Multilin TABLE OF CONTENTS ...
Page 57: ...GE Multilin L60 Line Phase Comparison System 2 27 2 PRODUCT DESCRIPTION 2 3 SPECIFICATIONS 2 ...
Page 58: ...2 28 L60 Line Phase Comparison System GE Multilin 2 3 SPECIFICATIONS 2 PRODUCT DESCRIPTION 2 ...
Page 482: ...6 26 L60 Line Phase Comparison System GE Multilin 6 5 PRODUCT INFORMATION 6 ACTUAL VALUES 6 ...
Page 554: ...10 8 L60 Line Phase Comparison System GE Multilin 10 2 BATTERIES 10 MAINTENANCE 10 ...
Page 674: ...B 110 L60 Line Phase Comparison System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 704: ...C 30 L60 Line Phase Comparison System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 720: ...E 10 L60 Line Phase Comparison System GE Multilin E 1 PROTOCOL APPENDIX E E ...
Page 732: ...F 12 L60 Line Phase Comparison System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Page 742: ...H 8 L60 Line Phase Comparison System GE Multilin H 3 WARRANTY APPENDIX H H ...