航天器环境工程Issue(6)：623-626,4.DOI:10.3969/j.issn.1673-1379.2013.06.011
航天继电器浪涌电流作用下电接触寿命研究
The contact life of spacecraft relay under inrush current
姜东升 1张沛 1柳新军1
作者信息
- 1. 北京空间飞行器总体设计部，北京 100094
- 折叠
摘要
Abstract
It is not uncommon that some relays of the spacecraft would fail due to the contact accretion. The inrush current, caused by the capacitive load, will appear when the relay is closed, although the derating design takes account of it. The inrush current may melt and erode the contacts to present potential risks of the failure of the relay. In this paper, the erosion of the relay contacts by the inrush current is studied, the capability of standing against the inrush current of the spacecraft relay is tested, the mechanisms of the contact erosion and welding are analyzed, tp give guidance for the proper use of the spacecraft relay and to improve the reliability and safety of the spacecraft relay usage.关键词
航天继电器/浪涌电流/触点/熔蚀/熔焊Key words
spacecraft relay/pulsed current/contactor/erosion/welding分类
信息技术与安全科学引用本文复制引用
姜东升,张沛,柳新军..航天继电器浪涌电流作用下电接触寿命研究[J].航天器环境工程,2013,(6):623-626,4.
