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...Learning outcomes by the end of this module students will be able to unit three phase induction motors explain operation a motor describe and operating characteristics squirrel cage wound rotor calculate synchronous speed slip an list losses that occur in factors affecting performance single draw with aid circuit diagrams ac sketch typical torque range principles when stator windings are fed supply magnetic flux constant magnitude but rotating at is set up passes through air gap sweeps past surface so cuts conductors which as yet stationary due relative between emf induced latter thus current starts flowing produces tends move same direction fields parts shield supporting bearings main function produce it electrical part core made several hundred thin laminations electromagnetic consists stack steel evenly spaced conductor bars around circumference formed stacked two types mechanical voltage loading line frequency phasing tests on no load or open test blocked short moving field produce...