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A 11 KV motor is working. if the supplay is fail. what
will happened with it's breaker? Trip / remain the same
condition?

Answers were Sorted based on User's Feedback



A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip ..

Answer / nishad

The Motor will surely trip becaue by the sensing of under
voltage relay, it will give the trip command to the
breaker. once the breaker trip motor also trip. well in
cause of a small Voltage dip motor may not be trip. because
it's related to the setting of undervoltage relay.
somewhere it is set 2 second ( as per company's requirment)
if the power failure is more than set time of undervoltage
relay, motor trip

Is This Answer Correct ?    4 Yes 0 No

A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip ..

Answer / k.prakashchandra

It will trip,if the breaker of motor has a voltage operated
hold coil which also provides protection against low voltage.

Is This Answer Correct ?    1 Yes 0 No

A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip ..

Answer / asish

the motor will not be tripped as there is no fault as only
supply is off.

Is This Answer Correct ?    2 Yes 3 No

A 11 KV motor is working. if the supplay is fail. what will happened with it's breaker? Trip ..

Answer / rajesh

as the supply power is constant, infinitely high current will flow through the circuit and hence the circuit breaker will trip.

Is This Answer Correct ?    0 Yes 2 No

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