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why the starting current of a motor is high?

Answers were Sorted based on User's Feedback



why the starting current of a motor is high?..

Answer / vinod

When three phase voltage is applyed across the stator a
flux with syn speed will be rotated inside the stator, as
the rotar is stationatory max, voltage will be induced and
high startin current is drawn.

Is This Answer Correct ?    16 Yes 2 No

why the starting current of a motor is high?..

Answer / jayaram

iniatially the motor don't have any backemf so motor draw
high current at the starting stage. whenever motor is
started it generates backemf so motor takes normal load
current.

Is This Answer Correct ?    12 Yes 1 No

why the starting current of a motor is high?..

Answer / sanjana singh

in starting motor resistance is negligible.so according to formula-
I=v/Ra ( Ra can be neglected)
then I=V ( Starting current is equal to supply voltage)
so to start motor starter is used. it add resistance in series of motor by this starting current limit to safe value & motor start safely...

Is This Answer Correct ?    0 Yes 0 No

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