機床用交流接觸器可靠性評估方法
陸賓1，陸儉國2
1 蘇州天業電器有限公司，江蘇 蘇州 215128；2 河北工業大學，天津 300130
摘 要：介紹了國內外開展交流接觸器可靠性研究概況，闡述了機床用交流接觸器機械操作可靠性試驗方法與評估方法。指出交流接觸器通斷實際電氣負載時產品失效分布類型為威布爾分布，失效率不是常數，不宜采用失效率大小作為交流接觸器通斷實際電氣負載時的可靠性指標，而應采用可靠性測定試驗，并給出了交流接觸器通斷實際電氣負載時可靠性試驗方法與提供可靠性數據的評估方法。
關鍵詞：交流接觸器；可靠性指標；可靠性驗證試驗
中圖分類號：TM572.2 文獻標識碼：A 文章編號：1007-3175(2014)02-0049-03
Machine Tool Used AC Contactor Reliability Evaluation Method
LU Bin1, LU Jian-guo2
1 Suzhou Tianye Electrical Apparatus Co., Ltd, Suzhou 215128, China; 2 Heibei University of Technology, Tianjin 300130, China
Abstract: Introduction was made to AC contactor reliability study development situations both at home and abroad. This paper described the reliability test method of machine tool used AC contactor mechanical operation and the evaluation method, pointing out that the product failure distribution type is Weibull distribution when AC contactor turning on/off the rating electrical load, failure rate is not constant, it is not suitable to adopt failure rate value as reliability index, but to adopt reliability measurement test, and the corresponding methods were given.
Key words: AC contactor; reliability index; reliability verification test
參考文獻
[1] LU Jian-guo, WANG Jing-qin, LUO Yan-yan, et al.Reliability Basic Theories and Applications in Electrical Apparatus[M].Bloomington：iUniverse Inc, 2012.
[2] 陸儉國，何瑞華，陳德桂，等. 中國電氣工程大典配電工程[M]. 北京：中國電力出版社，2010.
[3] GB/Z 22200—2008 小容量交流接觸器可靠性試驗方法[S].
[4] IEC 60947-4-1：2009 Low-voltage switchgear and controlgear—Part4-1：Contactors and motorstarters—Electromechanical contactors and motor-starters[S].
