Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2011.6.5.613
Title & Authors
Dynamic Characteristic Analysis of Electric Actuator for 1 kV/3.2 kA Air Circuit Breaker Based on the Three-link Structure Lee, Seung-Min; Kang, Jong-Ho; Kwak, Sang-Yup; Kim, Rae-Eun; Jung, Hyun-Kyo;
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.
Air circuit breaker;Electromagnetic force driving actuator;Finite element method Time difference method;
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