Effects of Ferrite Magnetic Wedges and Condenser Capacity on Torque Characteristics of a Capacitor Motor

概要

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A split-phase capacitor motor is used to drive such domestic loads as household refrigerators and other home electric appliances. This type of motor, however, is usually operated by producing alternating (pulsating or oscillating) torque. In this study, ferrite magnetic wedges have been inserted into stator slot openings of a capacitor motor, and some experimental investigations have been developed to reduce the alternating torque of the motor. With wedging ferrite materials, the amplitude of alternating torque has been decreased to decrease power losses and to increase motor efficiency. When the capacity of the running condenser was exchanged to find suitable operating conditions, the amplitude of alternating torque was likely to decrease, but the increase of condenser capacity has led to increases in circuit currents and power losses. Accordingly, it has been found that there could be an optimal condenser capacity for improving the motor characteristics.
INSTITUTE OF PURE AND APPLIED PHYSICSの論文
1989-04-20