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The Auxiliary Winding Control Characteristics of Single-Phase Induction Motor by Universal Starting Switch  

임홍우 (조선대 공대 전기공학과)
임병옥 (한국전기전자시험연구원)
정수복 (조선대 공대 전기공학과)
조금배 (조선대 공대 전기공학과)
백형래 (조선대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.53, no.6, 2004 , pp. 396-401 More about this Journal
Abstract
Single phase induction motor(SPIM) is one of the most widely used type of low power AC motors in the world, especially for domestic or commercial applications where a three phase power supply is not available. Single phase induction motors have no starting torque their own. So there are several ways of starting single phase induction motors. The most common type is the starting capacitor installed in series with the auxiliary winding to increase the starting torque. In the conventional systems, this function is conducted by a centrifugal switch. But the mechanical centrifugal switch has many problems such as switch malfunction. This paper presents the auxiliary winding control using digital universal starting switch to overcome these shortcomings of centrifugal switch.
Keywords
Single phase induction motor; starting torque; starting capacitor; centrifugal switch;
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