Electrical · E-6V4HG

4.16 kV Transformer CT and PT Relay Typical Detail

Connections

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Wiring configuration for 4.16 kV transformer current transformers and potential transformers connected through terminal blocks to protective relays and meters. Input source bus phases A, B, and C feed current transformers CT-A, CT-B, and CT-C, routing secondary leads X1 and X2 through shorting blocks and terminal strips TS1 and TS3 into the relay current inputs IA, IB, IC, and IN. Potential transformers connected to the input bus supply voltage inputs VA, VB, VC, and VN through fuses and terminal strip TS2. Terminal strips and shorting blocks provide test points and grounding connections for the instrumentation circuit.

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