Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Dynamic Characteristic Analysis of Electric Actuator for 1 kV/3.2 kA Air Circuit Breaker Based on the Three-link Structure

  • 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) ;
  • Kim, Rae-Eun (School of Electrical Engineering and Computer Science, Seoul National University) ;
  • Jung, Hyun-Kyo (School of Electrical Engineering and Computer Science, Seoul National University)
  • Received : 2009.04.28
  • Accepted : 2011.01.05
  • Published : 2011.09.01
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Abstract

In the present paper, a new type of electrical actuator, an electromagnetic force driving actuator (EMFA), applicable to air circuit breaker is developed and analyzed. Transient analysis is performed to obtain the dynamic characteristics of EMFA. The distribution of static magnetic flux is obtained using the finite element method. The coupled problems of electrics and mechanics governing equations are solved using the time-difference method. According to the interception rate of each contactor, investigation of the contactor spring load condition is conducted and applied to the threelink system. Comparisons of the dynamic characteristics of the three-link simulation and experimental data are performed.

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References

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