vacuum circuit breaker life Vs current capacity

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Thread Starter

paru

Hi all,

I want to know two things if someone can explain me in best way...

A vacuum circuit breaker rated 36kV/2500A/31.5kA for 1sec....is feeding a big transformer. If the breaker is switched off with 2500A, how much number of operation can we have before replacing the vacuum bottle.
 
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