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  1. jsamuels

    Faulted 3ph delta connected motor tripping a 3ph wye connected motor

    I work at a power plant and had two separate occasions where a 3 phase 480VAC 150HP delta connected motor tripped on ground fault (valid). A 3 phase 480VAC 150HP wye connected motor also nuisanced tripped (not valid). Both motors are connected to a ITE/ABB Kline loadcenter with a 13.8KV/480VAC...

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