A 7200 to 4160 V three-phase transformer 150 kVA in a supervised location is fed from a feeder tap protected with a three-phase fused safety switch. The transformer powers a circuit breaker in an enclosure. The maximum size of fuses for the safety switch is ___ amps. Z = 7%.

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Multiple Choice

A 7200 to 4160 V three-phase transformer 150 kVA in a supervised location is fed from a feeder tap protected with a three-phase fused safety switch. The transformer powers a circuit breaker in an enclosure. The maximum size of fuses for the safety switch is ___ amps. Z = 7%.

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