滅弧室結構對交流接觸器電壽命影響的試驗研究
汪從禮
北京人民電器廠有限公司，北京 102600
摘 要：介紹了接觸器的滅弧原理及方式，分析了交流接觸器滅弧室結構及有效排氣孔面積對電壽命的影響。以框架為150A接觸器的滅弧室結構為例，對3個樣機進行AC-4電壽命試驗，試驗結果表明對于同電流框架的接觸器，其滅弧室結構對電壽命影響至關重要，且在滿足電氣間隙和爬電距離時，有效排氣孔面積越大，電壽命次數越大。
關鍵詞：交流接觸器；滅弧室；電壽命；滅弧柵片
中圖分類號：TM572.2 文獻標識碼：A 文章編號：1007-3175(2014)04-0046-03
Test Study of Arc Extinguish Chamber Structure’s Impact on Electrical Life of AC Contactor
WANG Cong-li
Beijing People’s Electric Plant Co., Ltd, Beijing 102600, China
Abstract: Introduction was made to the principle and method of arc extinction of contactor and analysis was made to the arc extinguish chamber structure of AC contactor and the impacts of effective gas escape area on electrical life. Taking the arc extinguish chamber structure of frame 150 A contactor as an example, AC-4 electrical life test was carried out for 3 sample machines. The test result shows that for same current frame contactors, its arc extinguish chamber structure has vitally important impact on electrical life, and providing the requirement of electric gap and distance is met, the bigger the effective gas escape area is, the larger the number of electrical life times is.
Key words: AC contactor; arc extinguish chamber; electrical life; arc chute
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