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Is it dangerous to disconnect a loaded 10 KVA transformer to disconnect a running 10 HP motor?

April 26, 2017dangerous disconnect HP kva loaded motor running transformer

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Is it dangerous to disconnect a loaded 10 KVA transformer to disconnect a running 10 HP motor?

1 Answer

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Very much so! A transformer reflects the load from one winding to another. Therefore, if you have a certain amount of arcing because of a disconnect on one side of the transformer, you would have an equal amount on the other side, provided the transformer was a 1:1 ratio. As the voltages increase, energy transfer becomes more of a problem and the hazards to you and your equipment mount accordingly.