Electrical · E-M78B4

4.16kV Feeder CT/PT Relay Typical Detail

Connections

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Wiring configuration for 4.16 kilovolt feeder current transformers and potential transformers connected to protective relays and meters. Current transformers CT-A, CT-B, and CT-C interface with shorting block SB terminals and test switches TS1 before routing to relay and meter current inputs IA, IB, IC, and IN. Potential transformers connect through fused disconnects and test switches TS2 to relay and meter voltage inputs VA, VB, VC, and VN. System grounding connections are provided at the shorting block and transformer secondary circuits.

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