nagato
May 22, 2009, 02:41 AM
Could you please provide a formula for the computation of Interrupting capacity of circuit braker.
sathe1963
May 24, 2009, 08:36 AM
Interputting capacity of a circuit breaker is predecided... category wise by the manufacturer.
Which KA rating breaker is to be selected based on the maximum short circuit current ability to deliver by the feeding equipment such as transformer or generator. This could be found out by % impedance or sub transient reactance of a transformer or a generator.