GE Multilin C60 UR series, Instruction Manual

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GE Multilin C60 Breaker Protection System 3-13
3 HARDWARE 3.2 WIRING
3
Figure 3–14: ZERO-SEQUENCE CORE BALANCE CT INSTALLATION
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.
Substitute the tilde “~” symbol with the slot position of the module in the following figure .
Figure 3–15: CT/VT MODULE WIRING
Ground connection to neutral
must be on the source side
UNSHIELDED CABLE
LOAD
A B C N G
Ground
outside CT
Source
LOAD
SHIELDED CABLE
996630A5
A B C
Source
To ground;
must be on
load side
Stress cone
shields
NOTE
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
1a 1b 1c 2a 2b 2c 3a 4a 5a 6a 7a 8a 3b 4b 5c 6c 7c 8c 3c 4c
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
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
1a 5a 1b 5b 1c 5c 2a 6a 2b 6b 2c 6c 3a 7a 4a 8a 3b 7b 4b 8b 3c 7c 4c 8c
Current inputs
842766A3.CDR
IA IA IC IC IB IB IG IG
IA5 IA5 IC5 IC5 IB5 IB5 IG5 IG5 IA1 IA1 IC1 IC1 IB1 IB1 IG1 IG1
8H, 8J, 8N, and 8R modules (8 CTs)