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Proper setting of a magnetic trip breaker
I have separate interrupting devices in an MCC bucket. One is a magnetic trip-overload 250A breaker, where the lowest trip setting is 1100A. The other is an electronic device that has 3 CT's and ...
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2
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Acceptable imbalance at starting of a 3-phase motor (480V)
I've read several places that the maximum acceptable imbalance of a 3 phase motor is 10%, but that's of a currently running motor. However, I have a 90kW motor that is tripping and to determine if it ...
- 295