新型高速断路器的速度和电压能力的相关因素

Electrical Contacts - 1999. Proceedings of the Forty-Fifth IEEE Holm Conference on Electrical Contacts (Cat. No.99CB36343) Pub Date : 1900-01-01 DOI:10.1109/HOLM.1999.795936

D. Benard, P. Nolden, E. A. Mallonen

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引用次数: 2

摘要

研究了一种限流快速断路器的新概念，以确定限制或增强性能的设计因素。积极因素包括电弧触点靠近方形磁芯角的位置，以及在分离器板结构中加入烃类添加剂以抑制电弧退退。案例通风和使用银合金接触垫，而不是更难熔的金属，被发现是有害的。在L/R时间常数为0.9 ms的测试电路中，获得了低至0.6 ms的清除时间。

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Factors related to speed and voltage capability of a new high-speed circuit breaker

A new concept for a current-limiting fast circuit breaker was investigated to determine design factors that either significantly limited or enhanced performance capability. Positive factors included location of the arcing contacts adjacent to the corners of a square-shaped magnetic core and application of hydrocarbon additives to the splitter plate structure to suppress arc retrogression. Case venting and use of silver alloy contact pads, as opposed to more refractory metals, were found to be deleterious. Clearing times as low as 0.6 ms were obtained in test circuits with an L/R time constant of 0.9 ms.

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来源期刊

Electrical Contacts - 1999. Proceedings of the Forty-Fifth IEEE Holm Conference on Electrical Contacts (Cat. No.99CB36343)

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