Transcription of 2. ELECTRIC MOTORS
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2. ELECTRIC MOTORS
2. ELECTRIC MOTORS25 Bureau of Energy EfficiencySyllabus ELECTRIC MOTORS :Types, Losses in induction MOTORS , motor efficiency, Factors affectingmotor performance, Rewinding and motor replacement issues, Energy saving opportunitieswith energy efficient IntroductionMotors convert electrical energy into mechanical energy by the interaction between the mag-netic fields set up in the stator and rotor windings. Industrial ELECTRIC MOTORS can be broadly clas-sified as induction MOTORS , direct current MOTORS or synchronous MOTORS . All motor types havethe same four operating components: stator (stationary windings), rotor (rotating windings),bearings, and frame (enclosure).
Motors convert electrical energy into mechanical energy by the interaction between the mag- ... tional to supply voltage with the result that the motor power factor reduces, with a reduction in applied load. Induction motors, especially those operating below their rated capacity, are the
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