3-14
F60 Feeder Protection System
GE Multilin
3.2 WIRING
3 HARDWARE
3
A relay configured for high impedance fault detection element includes two CT/VT modules: one type 8F, 8G, 8H, or 8J
module and one type 8Z module. For correct operation of the high impedance fault detection element, the ground current
terminals of the two CT modules must be connected to a ground current source, either a zero-sequence CT (see the
Typi-
cal wiring diagram with high impedance fault detection
earlier in this chapter) or, if a zero-sequence CT is not available, to
the neutral conductor of the phase CTs (see diagram below).
Figure 3–15: TYPICAL 8Z MODULE WIRING WITH PHASE CTS
3.2.5 PROCESS BUS MODULES
The F60 can be ordered with a process bus interface module. This module is designed to interface with the GE Multilin
HardFiber system, allowing bidirectional IEC 61850 fiber optic communications with up to eight HardFiber merging units,
known as Bricks. The HardFiber system has been designed to integrate seamlessly with the existing UR-series applica-
tions, including protection functions, FlexLogic, metering, and communications.
The IEC 61850 process bus system offers the following benefits:
•
Reduces labor associated with design, installation, and testing of protection and control applications using the F60 by
reducing the number of individual copper terminations
•
Integrates seamlessly with existing F60 applications, since the IEC 61850 process bus interface module replaces the
traditional CT/VT modules
•
Communicates using open standard IEC 61850 messaging
For additional details on the HardFiber system, see GE publication GEK-113658: HardFiber Process Bus System Instruc-
tion Manual.
A
B
C
Positive watts
(5 amp CT)
52
F1a
F1b
F1c
F2a
F2b
F2c
F3a
F4a
F5a
F6a
F7a
F8a
F3b
F4b
F5c
F6c
F7c
F8c
F3c
F4c
Current inputs
8F, 8G, 8L, and 8M modules (4 CTs and 4 VTs)
Voltage inputs
VA
VB
VC
VX
VA
VB
VC
VX
IA
IC
IB
IG
IA5
IC5
IB5
IG5
IA1
IC1
IB1
IG1
M1a
M1b
M1c
M2a
M2b
M2c
M3a
M4a
M3b
M4b
M3c
M4c
Current inputs
IA
IC
IB
IG
IA5
IC5
IB5
IG5
IA1
IC1
IB1
IG1
8Z module (used for high-impedance fault detection)
832752A4.CDR
Summary of Contents for F60
Page 10: ...x F60 Feeder Protection System GE Multilin TABLE OF CONTENTS ...
Page 30: ...1 20 F60 Feeder Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 138: ...4 28 F60 Feeder Protection System GE Multilin 4 2 FACEPLATE INTERFACE 4 HUMAN INTERFACES 4 ...
Page 454: ...5 316 F60 Feeder Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 500: ...7 14 F60 Feeder Protection System GE Multilin 7 1 COMMANDS 7 COMMANDS AND TARGETS 7 ...
Page 508: ...8 8 F60 Feeder Protection System GE Multilin 8 2 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Page 522: ...10 12 F60 Feeder Protection System GE Multilin 10 6 DISPOSAL 10 MAINTENANCE 10 ...
Page 660: ...B 116 F60 Feeder Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 706: ...E 10 F60 Feeder Protection System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Page 718: ...F 12 F60 Feeder Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Page 728: ...H 8 F60 Feeder Protection System GE Multilin H 2 ABBREVIATIONS APPENDIX H H Z Impedance Zone ...
Page 730: ...H 10 F60 Feeder Protection System GE Multilin H 3 WARRANTY APPENDIX H H ...