why 3 phase motors are preferable over single phase motors ?
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Answer Posted / aniruddh
In case single phase motor torque devloped is zero duto
field revolving theory so we need to auxillary wdg or
paralle capacitor to improve starting torque.
In case 3- phase motor has mmf which 120degree to each
nothing required for startig purpose.
3-phase motor connected in star conection fault occurse
in any phase motor is capable to run but lower speed.
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