Title :
The benefits of allowing for increased starting current in AC squirrel cage induction motors
Author :
Bonnett, Austin H.
Author_Institution :
US Electr. Motors Co., St. Louis, MO, USA
Abstract :
Opportunities for obtaining improved motor efficiency by reducing the present restrictions on the motor starting current are identified. The existing National Electrical Manufacturer´s Association (NEMA) standards are reviewed, and recommendations are given for a new standard. The impact on motor operating temperature and power factor is discussed. In cases where increased starting current is prohibitive, alternative starting methods are given
Keywords :
squirrel cage motors; standards; starting; AC squirrel cage induction motors; NEMA standards; motor efficiency; power factor; starting current; Chemical industry; IEC standards; Induction motors; Industry Applications Society; Power systems; Reactive power; Synchronous motors; Temperature; Torque; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
