Maurice Tutor

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Category > Management Posted 15 Jan 2018 My Price 4.00

three-phase circuit breaker

A three-phase circuit breaker has a 15.5-kV rated maximum voltage, 9.0-kA rated short-circuit current, and a 2.67-rated voltage range factor. (a) Determine the symmetrical interrupting capability at 10-kV and 5-kV operating voltages. (b) Can this breaker be safely installed at a three-phase bus where the symmetrical fault current is 10 kA, the operating voltage is 13.8 kV, and the (X/R) ratio is 12?

 

 

 
 

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Maurice Tutor
(5)
Status NEW Posted 15 Jan 2018 09:01 PM My Price 4.00

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