Rating of High-Temperature Induction Motors
- 1 June 1945
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Transactions of the American Institute of Electrical Engineers
- Vol. 64 (6), 300-302
- https://doi.org/10.1109/t-aiee.1945.5059142
Abstract
The advent of new high-temperature insulating materials, such as the silicones, gives new freedoms to the motor designer. It is probable, however, that factors other than insulation will limit the desirable motor-temperature rise to values well below the endurance limits of these materials. It is, therefore, desirable to recognize that the size of an induction motor is measured electrically by its breakdown torque, and mechanically by the size of shaft and bearings, the temperature rise being only a secondary factor. Calculations are presented, based on idealized assumptions, which indicate that the optimum temperature rise for continuous rated induction motors is below 80 degrees centigrade, whatever the insulating materials used.Keywords
This publication has 2 references indexed in Scilit:
- The Rating of Electrical Machinery and ApparatusTransactions of the American Institute of Electrical Engineers, 1939
- Rating of General-Purpose Induction MotorsTransactions of the American Institute of Electrical Engineers, 1939