A 3-phase induction motor draws a current of 50 a from mains when started by direct switching. if an auto transformer with 60% tapping is used for starting, the current drawn from the mains will be
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The induction motor has a full load slip with0.04.
Currently, this process is 5 times its full load on the current which follow the ratio is starting.
However, the tapping of auto transformer is 60%, for starting torque in the motor is started using auto transformer.
In any Induction Motor is to start to during direct switching of motor.
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Answer:
nearly 18A
As we know
line current=50A
60% of tappping
50*60/100=30A
then per phase current=30/√3=17.32A
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