Transcription of UNIT-1 SINGLE-PHASE INDUCTION MOTORS
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UNIT-1 SINGLE-PHASE INDUCTION MOTORS
UNIT-1 SINGLE-PHASE INDUCTION MOTORS INTRODUCTION: There are two basic reasons for the use of SINGLE-PHASE MOTORS rather than 3-phase MOTORS . 1. For reason of economy, most houses, offices and also rural areas are supplied with single phase , as power requirements of individual load items are rather small. 2. The economics of the motor and its branch circuit. Fixed loads requiring not more than can generally be served most economically with single phase power and a single phase motor . single phase MOTORS are simple in construction, reliable, easy to repair and comparatively cheaper in cost and therefore, find wide use in fans, refrigerators, vacuum cleaners, washing machines, other kitchen equipment, tools, blowers, centrifugal pumps, small farming appliances etc.
UNIT-1 SINGLE-PHASE INDUCTION MOTORS 1.1 INTRODUCTION: There are two basic reasons for the use of single-phase motors rather than 3-phase motors. ... The main stator winding and auxiliary (or starting) winding are joined in parallel, and there is an arrangement by which the polarity of only the starting winding can be reversed. This
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