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Answer Posted / raju_
STAR CONNECTED WINDING IS CLOSE LOOP CIRCUIT IT SELF IF
YOU TRY TO GROUNDED THEN CRIRCUIT NOT GOING CLOSE THEN
MOTER WINDING IS NOT GENRETED E M F AND MOTER
CANT'PERFORMING WELL! THATS WHY WE CANT GROUNDED THE STAR
CONNECTED WINDING.
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