Transactions of China Electrotechnical Society  2018, Vol. 33 Issue (2): 255-264    DOI: 10.19595/j.cnki.1000-6753.tces.161162
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Study on the Design and Movement Characteristics Simulation of a Fast Repulsion Mechanism Based on Double-Coil Structure
Zhang Li, Ruan Jiangjun, Huang Daochun, Li Peng
School of Electrical Engineering Wuhan University Wuhan 430072 China

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Abstract  Although in recent years, the electromagnetic repulsion mechanism based on the eddy current repulsive force has quickly become a hotspot, the mechanism is not applicable to high-voltage circuit breaker of long clearance between open contacts. Thus, this paper puts forward a new fast repulsion mechanism based on double-coil-structure. Its mathematic model and movement characteristic simulations have been carried out. Compared with the electromagnetic repulsion mechanism, the results show that proposed mechanism has more obvious advantages and higher energy efficiency. Finally, in terms of the parameter requirements of 40.5kV vacuum circuit breaker, the effects of parameters on the motion characteristics are compared and analyzed, that is, the most important parameter is initial clearance between the two coils, followed by the number of coil axial turns, the least is the number of coil radial turns. Finally, the prospect about the mechanism used in vacuum circuit breaker of long clearance and high voltage is put forward. This paper provides a certain reference for the motion characteristics of new fast repulsion mechanism.
Key wordsVacuum circuit breaker      fast repulsion mechanism      coil      parameter optimization     
Received: 15 February 2017      Published: 31 January 2018
PACS: TM561.2  
Fund:国家重点研发计划资助项目(2017YFB0902404)
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Zhang Li
Ruan Jiangjun
Huang Daochun
Li Peng
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Zhang Li,Ruan Jiangjun,Huang Daochun等. Study on the Design and Movement Characteristics Simulation of a Fast Repulsion Mechanism Based on Double-Coil Structure[J]. Transactions of China Electrotechnical Society, 2018, 33(2): 255-264.
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