what is post close & pre close of trip circuit supervision relay in circui

what is post close & pre close of trip circuit supervision
relay in circuit breaker control scheme?

Question Posted / rbkrishnan

Answers were Sorted based on User's Feedback

what is post close & pre close of trip circuit supervision relay in circuit breaker control sc..

Answer / ashish patil

Preclose means breaker in off condition it supervise the trip coil & trip ckt is healthy.
& Postclose means It supervise When breaker is ON.

Is This Answer Correct ?

43 Yes

5 No

what is post close & pre close of trip circuit supervision relay in circuit breaker control sc..

Answer / k.prakashchandra

It will supervise the trip circuit before and after closing
the breaker

Is This Answer Correct ?

18 Yes

5 No

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