环境气氛对继电器触头性能的影响  

Atmosphere Influence on Contact Performance of Relay

作　　者：李震彪[1] 张欢[1] 郑必成[1] 吴细秀[2] 

机构地区：[1]华中科技大学电气与电子工程学院,湖北武汉430074 [2]武汉理工大学自动化学院,湖北武汉430070

出　　处：《低压电器》2007年第9期1-5,共5页Low Voltage Apparatus

基　　金：国家自然科学基金资助项目(50477044)

摘　　要：分析了部分气氛对继电器触头性能的影响规律。通过比较触头材料Ag和Pd分别在氮气和空气中侵蚀凹坑的形状特征,分析了氮气和SF6等气氛对触头侵蚀、熔焊、耐压的影响,及甲酸、甲苯、甲醇、蒸馏水等对触头的影响,表明各种气氛对继电器触头性能参数的影响十分复杂,该影响涉及对电弧运动规律的影响和与材料的化学反应。The influence rule on contact performance of relay for some atmospheres was analyzed. With morphology characteristics of erosion concave of Ag and Pd contact materials in nitrogen and air being compared, influence on erosion, welding and breakdown voltage of contact for nitrogen and SF6 being analyzed, influence on contact for the formic acid, toluene, carbinol and distilled water being analyzed, it was showed that the influence on performance parameters of relay contact for various atmospheres is very complex. The influence involves that on moving rule and chemic reaction on materials.

关 键 词：继电器 气氛 熔焊 电寿命 触头性能 

分 类 号：TM581.3[电气工程—电器] TM501.3