A Study on the Thermal Transient Analysis of Induction Motors

유도 전동기의 열적 과도상태의 해석

  • 천장성 (서울대학교 공과대학 전기공학과) ;
  • 김형섭 (서울대학교 공과대학 전기공학과) ;
  • 이철균 (현대중전기 기술연구소) ;
  • 한송엽 (서울대학교 공과대학 전기공학과) ;
  • 원종수 (서울대학교 공과대학 전기공학과)
  • Published : 1993.11.26

Abstract

The evaluation of the temperature of the motor in operation is necessary for smaller and lighter design of motors and for the determination of insulation class. And the evaluation of the temperature in thermal transient state is necessary for the determination of the intermittent rating and the protection from the thermal overload. The temperature can be calculated exactly by considering the loss distribution, the thermal resistances and the thermal capacities dependent on temperature. Using the detailed thermal equivalent circuit, the temperature of any local part of the motor can be evaluated. The comparison between the calculated results and the experiments is performed to verify the validity of the analysis.

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