Title :
A case for design ´A´ induction motors
Author :
Bonnett, Austin H. ; Laub, L.R.
Author_Institution :
US Electr. Motors, St. Louis, MO, USA
Abstract :
The authors identify opportunities to obtain improved motor efficiency as well as a longer thermal life by using National Electric Manufacturers Association (NEMA) design A motors. The capital outlay required to control starting current when applicable and the energy savings achieved through design A motor use are contrasted. The discussion is confined to NEMA sizes in the range of 1-200 hp. However, the same principle can be applied to larger-size machines.<>
Keywords :
induction motors; 1 to 200 hp; NEMA; National Electric Manufacturers Association; design A induction motors; energy savings; motor efficiency; starting current; thermal life; Computer aided software engineering; Costs; IEC standards; Induction motors; Insulation life; Reactive power; Size control; Temperature; Torque; Voltage fluctuations;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96624
