Answer / kolhe g j

Fault level is useful to decide Circuit Breaker rating in
power system . It is decided on the basis of Three Phase
Short circuit current

Answer / vishal ingle

Fault level is useful to decide Circuit Breaker rating in
power system . Major factors affecting the fault level are
1. Number of Lines connected to Bus bar & their lengths
2. distance of the s/s from source i.e generator. Capacity
of power station. path of power from the power plant.
3. soil strata. etc

What is meant by derating factor?

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1 Answers  

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