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Why at the starting of induction motor current is high?
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Answer Posted / sunil guru
AT START THEIR EXIST MAGNETIC FIELD & THE ELECTRIC FIELD IS ABSENT AND COMBINATION OF BOTH PRODUCES THE TORQUE AND ROTATES THE ROTOR...
TO PRODUCE THE FLUX IN THE CLOSE CIRCUIT OF THE ROTOR MOTOR CONSUMES THE CURRENT AND WITH THE CUTTING OF FLUX EMF IS GENERATED THEN THE GENERATED EMF IS CALLED BACK EMF OR COUNTER EMF .... AFTER THE PRODUCTION OF BACK EMF IT NEUTRALISE'S WITH SUPPLY VOLTAGE AND THEN WITH THE STAGE OF NORMAL RUNNING OF MOTOR THE CURRENT CONSUMPTION REDUCES...
SO AT START WITH THE WORK OF SETTING OF FLUX AND TO OVERCOME THE LOSSES THE STARTING CURRENT IS ALWAYS HIGH...
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