Is phase motor rotation determined by incoming service

[Isaiah]

Does phase rotation at LV motors always have to match the phase rotation of the MV incoming service?


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[Deltaforce]

Does phase rotation at LV motors always have to match the phase rotation of the MV incoming service?


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No intervening mv-lv transformer may change phase Sequence

 

[ActionDave]

Does phase rotation at LV motors always have to match the phase rotation of the MV incoming service?


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No. Motor rotation can be set or changed anywhere along the food chain right up to the final connection at the motor.

 

[ptonsparky]

Changing the transformer without paying attention can be a real headache.