380V交流接触器不能复归的实例分析

华电技术 ›› 2014, Vol. 36 ›› Issue (7): 55-56.

380V交流接触器不能复归的实例分析

(华电国际邹县发电厂，山东邹城〓273522)

出版日期:2014-07-25

Analysis on example of 380V AC contactor unable to reset

(Huadian International Zouxian Power Plant, Zoucheng 273522, China)

Published:2014-07-25

摘要/Abstract

摘要： 摘要：通过数值计算对一起380V接触器因回路谐振导致不能正常复归的异常现象进行分析，得出接触器不能复归的主要原因是受电缆分布电容的影响。提出了在原接触器上并联一个额外接触器的解决方法，给出了380V交流控制回路现场应用时应注意的问题。

关键词: 关键词：交流接触器, 交流阻抗, 谐振

Abstract: Abstract:Due to loop resonance, a 380V AC contactor is unable to reset normally. The abnormal phenomenon was analyzed by numerical calculation. The analysis result shows that the main reason of the problem is the influence of the distributed capacity of the cable. A solution was proposed, which is to connect an additional contactor parallel with the original contactor. The matters needing attention in field application of 380V AC control circuit were given.

Key words: Keywords:AC contactor, AC impedance, resonance

林西国，杨倩. 380V交流接触器不能复归的实例分析[J]. 华电技术, 2014, 36(7): 55-56.

LIN Xiguo, YANG Qian. Analysis on example of 380V AC contactor unable to reset[J]. Huadian Technology, 2014, 36(7): 55-56.

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