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

论文摘要

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.

论文目录

文章来源

类型: 期刊论文

作者: 何鋆,宋执权,汤存文,傅鹏,张杰

来源: Plasma Science and Technology 2019年06期

年度: 2019

分类: 基础科学,工程科技Ⅱ辑

专业: 电力工业

单位: Institute of Plasma Physics,Chinese Academy of Sciences,University of Science and Technology of China

分类号: TM561

页码: 157-163

总页数: 7

文件大小: 565K

下载量: 4

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