Study of contact resistance in the design of a pyro-breaker applied in superconducting fusion facility

何鋆; 宋执权; 汤存文; 傅鹏; 张杰

首页> 中文期刊> 《等离子体科学和技术：英文版》 >Study of contact resistance in the design of a pyro-breaker applied in superconducting fusion facility

Study of contact resistance in the design of a pyro-breaker applied in superconducting fusion facility

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Pyro-breaker is a fast-responding and high-reliable explosive-driven circuit breaker,which has been applied in several quench protection systems,such as International Thermonuclear Experimental Reactor and Experimental Advanced Superconducting Tokamak.As an indispensable back-up switch,Pyro-breaker guarantees the reliability and safety of the system and avoids tremendous loss when quench happens.Electrical contact,a crucial part of an electrical device greatly determines the steady current capacity of a Pyro-breaker.However,due to the complexity of the model and the deficiency knowledge of the microstate of contact areas,an accurate calculation for contact resistance is difficult to acquire.A study of electrical contact in the design of a Pyro-breaker has been presented in this paper.An engineering calculation method is verified with experiments.Parameters are fitted for the presented model,which will be a significant theoretical basis for the future designing.

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来源
《等离子体科学和技术：英文版》 |2019年第6期|153-159|共7页
作者
何鋆; 宋执权; 汤存文; 傅鹏; 张杰;
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作者单位

Institute of Plasma Physics;

Chinese Academy of Sciences;

Hefei 230031;

People's Republic of China;

University of Science and Technology of China;

Hefei 230031;

People's Republic of China;

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原文格式 PDF
正文语种 chi
中图分类原子能技术;
关键词
quench; protection; system; pyro-breaker; contact; resistance; four-point-method;

Study of contact resistance in the design of a pyro-breaker applied in superconducting fusion facility

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