华电技术 ›› 2018, Vol. 40 ›› Issue (1): 46-49.

• 技术交流 • 上一篇    下一篇

一起晃电导致400V电机异常跳闸事件的分析

  

  1. 1.皖能铜陵发电有限公司,安徽铜陵〓244012; 2.国核工程有限公司,上海〓200233
  • 出版日期:2018-01-25 发布日期:2018-02-07

Analysis on an abnormal voltage sag of 400V motor

  1. 1.Wanneng Tongling Power Generation Company Limited, Tongling 244012,China;2.State Nuclear Power Engineering Company Limited,Shanghai 200233,China
  • Online:2018-01-25 Published:2018-02-07

摘要:

针对一起晃电时400V辅机跳闸事件,结合系统运行方式及故障类型,分析导致跳闸的根本原因。对各类故障可能导致类似事件发生的概率进行统计,为了提高设备运行可靠性,提出了400V设备控制电源的设计改进思路。

关键词:

Abstract:

Focusing on a tripping event of a 400V auxiliary under condition of voltage sagging, analysis is made according to the operation mode and fault type, to find out the fundamental cause of the incident. Through calculating the probability of similar incidents since diverse fault, in order to improve the reliability of equipment’s operation, a modified design of 400V devices is proposed.

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