An alternating current single phase two poles induction motor of the "split-Phase" type consists of main field winding and starting field winding, the two windings being displaced in space quadrature (ninety degrees apart) on the Stator core, to get the desired performances under starting and accelerating conditions. In this type of motor the starting field winding remains energized only during starting and accelerating period and is suitably de-energized when a predetermined desired operating condition is attained and thereafter the motor should keep running on main field winding only.
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