Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380vo

Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380votac 50hz is this harmful for moter winding

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Rated moter voltage and frequency is 380volt 60 hz but moter is running at 380votac 50hz is this har..

Answer / ll.krishna rao

V=4.44fNBA Therefore V is proportional to frequency if you want not to exceed the design parameter of flux density.If you operate a motor at 50Hz instead of its rated 60 Hz,then you will be exceeding the flux density by 120% for 380 v
operation.I suggest you to operate the motor at 380/1.2 volts instead at the expense of full power.

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