Title :
The Inherent Overheating Protection of Single-Phase Motors
Author_Institution :
Wagner Electric Corporation, St. Louis, Mo.
Abstract :
Motor protectors are selected and applied so that they restrict the motor winding temperature to specified values at normal voltage and frequency and a room temperature of 40°C. The accompanying table shows the probable increase (or decrease) in winding temperatures which may occur on account of abnormal voltages, frequencies, or ambient temperatures, or with restricted ventilation.
Keywords :
Coils; Fuses; Manufacturing; Protection; Protective relaying; Resistors; Strips; Switches; Temperature dependence; Thermal resistance;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1941.5058220
