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.

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.

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...

If an induction motor is restarted before its rotor stop rotating, then what will be the amount of current drawn? Is this current will be the same as motor starting current?

5 Answers  

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Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?

0 Answers  

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can induction motor run over the rated speed ?

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1 Answers  

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why a motor rating in KW?

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When do you use a VFD motor?

1 Answers  

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Can we use Motor protection CB while we use the VFD for Speed control?? if not means please tell the reason!!!

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what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

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I have 320 Kva DG Set his KWh running is 77 , how i can calculate into electrical unit .

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