Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Dynamic Characteristics Analysis of Electric Actuator (EMFA) for Air Circuit Breaker (ACB) with Three-bar Linkage structure

3링크를 적용한 기중차단기용 전자석 조작기(EMFA) 해석

  • Lee, Seung-Min (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Kang, Jong-Ho (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Kwak, Sang-Yup (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Jung, Hyun-Kyo (School of Electrical Engineering and Computer Science, Seoul National University)
  • 이승민 (서울대학교 전기컴퓨터 공학부) ;
  • 강종호 (서울대학교 전기컴퓨터 공학부) ;
  • 곽상엽 (서울대학교 전기컴퓨터 공학부) ;
  • 정현교 (서울대학교 전기컴퓨터 공학부)
  • Published : 2009.04.23
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Abstract

In this paper, a new type of electromagnetic actuator, an electro magnetic force driving actuator (EMFA) is developed and analyzed, applicable to air circuit breaker (ACB). Transient analysis is performed in order to obtain the dynamic characteristics of the EMFA. The distribution of static magnetic flux is obtained using the finite element method (FEM). The coupled problems of electrics and mechanics governing equations are solved using the time difference method (TDM). Also according to interception rate of each contactor, investigation about load condition of contactor spring is conducted, applied it to three-link system. And comparison about dynamic characteristics of three-link simulation and experiment data are performed.

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