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The effects of various thermal parameters on coil temperature rise in TEFC induction motor
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 Title & Authors
The effects of various thermal parameters on coil temperature rise in TEFC induction motor
Yun, Myeong-Geun; Ha, Gyeong-Pyo; Go, Sang-Geun; Lee, Yang-Su; Han, Song-Yeop;
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 Abstract
At design stage of new motor or when taking remedial action of old motor, a lot of information can be obtained from thermal parameters analysis. This study focused on the temperature rise of TEFC induction motor with respect to various thermal parameters. Frame heat transfer had the most important effect on coil temperature rise. But those of air gap and rotor fan had no effect. This fact shows fan action is more important than fin action in the case of rotor fan. Coil temperature can be more decreased by cooling near the heat sources than any other parts from the results of thermal conductivity and loss tests. Variation of cooling air flow rate and motor volume effects on coil temperature were also tested. These tests suggest that improvement of cooling fan performance is important in reducing the coil temperature rise. Thermal equivalent program was verified by comparison of some experimental results.
 Keywords
TEFC Induction Motor;Thermal Equivalent Network Program;Thermal Parameter;Heat Transfer Coefficient;Thermal Conductivity;Loss;Load;Resistance Method;Coil Temperature Rise;
 Language
Korean
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