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  • Users: TunaPower
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  1. TunaPower

    Transfer switch feeding transformer causes upstream circuit breaker trip

    Fast, open transition transfer switch causes upstream circuit breaker trip on transfer. From transformer secondary currents with lower loads that survive without a breaker trip, I see an open time of about 30ms. Feeding a 45kVA dry, three-phase transformer 480V to 160V AC, 55FLA, for generator...

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