Analysis and Verification of Electrical Durability of AC Contactor

doi:10.16628/j.cnki.2095-8188.2021.04.011

Abstract

Abstract:

In order to improve the electrical durability of contactors in heavy duty condition,the failure factors such as product structure,contact pressure and contact resistance are confirmed by theoretical analysis of dynamic stability and thermal stability.It is proved that the above failure factors do have significant influence on the performance of contactor through short time capacity test and electric life test.

Key words: electrical life, heavy load, contact pressure, contact resistance, temperature rise, short-time withstand overload current

CLC Number:

TM572.2

JI Xinhua, ZHENG Bin, ZHANG Jie, ZHAO Qingqing. Analysis and Verification of Electrical Durability of AC Contactor[J]. LOW VOLTAGE APPARATUS, 2021, 0(4): 59-62.

Figures/Tables 7

References 12

[1]	低压开关设备和控制设备第1部分:总则:GB 14048.1—2012[S].
[2]	低压开关设备和控制设备第4-1部分:接触器和电动机起动器机电式接触器和电动机起动器(含电动机保护器):GB 14048.4—2010[S].
[3]	许志红. 电器理论基础[M]. 北京: 机械工业出版社, 2014.
[4]	贺湘琰. 电器学[M]. 北京: 机械工业出版社, 2000.
[5]	周茂祥. 低压电器设计手册[M]. 北京: 机械工业出版社, 1999.
[6]	刘少飞. 交流接触器触头系统设计与分析[J]. 电器与能效管理技术, 2016(3):6-11.
[7]	周月英. 接触器触头温升及其计算[J]. 电气制造, 2010(11):58-60.
[8]	刘成学, 黄棋悦, 严楠. 基于接触器控制的电容电抗器组投切方案[J]. 浙江电力, 2020,39(9):44-49.
[9]	李伟全. 新一代接触器智能控制模块的设计[J]. 电器与能效管理技术, 2020(8):33-38.
[10]	肖斌, 刘洋, 翟国富. 基于径向基函数神经网络的接触器性能快速算法[J]. 电器与能效管理技术, 2020(1):40-45.
[11]	桂存兵, 陈章宝, 刘洋. 交、直流控制新型智能交流接触器的研制[J]. 广东电力, 2011,24(11):74-77.
[12]	姜研圳, 刘树鑫, 曹云东. 基于自适应最优权重的交流接触器特征参数权重影响分析[J]. 电器与能效管理技术, 2020(2):8-14.

试验类别	试验前后		开距/mm						总程 /mm	参数变化 /mm
试验类别	试验前后		A相		B相		C相		总程 /mm	参数变化 /mm
试验二	试验前	5.28		5.00		4.96		7.32		0.54~0.72
试验二	试验后	5.92		5.54		5.68		7.32		0.54~0.72
试验三	试验前	5.14		5.24		5.08		7.25		0.37~0.84
试验三	试验后	5.52		5.67		5.92		7.25		0.37~0.84
试验四	试验前	4.77		4.81		4.90		7.30		0.40~0.51
试验四	试验后	5.28		5.30		5.30		7.30		0.40~0.51

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