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What is 400kV One and Half Circuit Breaker System about?

This document describes a one and a half circuit breaker protection scheme. It includes: 1) Two buses connected by three circuit breakers (1-52 CB, 2-52 CB, 3-52 CB) with one feeder on each side. 2) Feeder 1 can be fed from Bus 1 via 1-52 CB or from Bus 2 via 3-52 CB and 2-52 CB. 3) Feeder 2 can be fed from Bus 2 via 3-52 CB or from Bus 1 via 1-52 CB and 2-52 CB. 4) To isolate Feeder 1, 1-52 CB and 2-52 CB must trip. To isolate Feeder 2, 3

Author

vthiyagain

Language

EN