通用继电器交流电弧行为及相关触点焊接失效试验研究

2020 IEEE 66th Holm Conference on Electrical Contacts and Intensive Course (HLM) Pub Date : 2020-09-30 DOI:10.1109/HLM49214.2020.9307870

Zhe Zheng, Tianyang Wang, Xu Zhang, W. Ren

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引用次数: 2

摘要

通用继电器触点焊接失效与交流电弧侵蚀密切相关。本文首先对通用继电器的交流电弧行为进行了研究。给出了触点闭合和触点断开过程中电弧电压和电流的典型波形，并明确分析了触点波对电弧能量的影响。基于电耐久实验中触点开断时间和制热的退化过程，提出了通用继电器触点焊接失效的可能物理机制。

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Experimental Investigation of Alternating Current Arc Behavior and Associated Contact Welding Failure for General-purpose Relay

The contact welding failure of general-purposed relay closely relates to alternating current (AC) arc erosion. In this paper, AC arc behavior is investigated by a general-purpose relay firstly. The typical waveforms of arc voltage and current during contact making and breaking are presented, then the effects of point-on-wave (POW) at break on arc energy is analyzed explicitly. Based on the degradation processes of contact opening time and making heat occurred in the electrical endurance experiment, the possible physical mechanism of contact welding failure for general-purposed relay is proposed.

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来源期刊

2020 IEEE 66th Holm Conference on Electrical Contacts and Intensive Course (HLM)

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