一起因干扰导致断路器跳闸的原因分析

华电技术 ›› 2010, Vol. 32 ›› Issue (7): 62-63.

一起因干扰导致断路器跳闸的原因分析

舒逸石，马丽丽，呼建礼

安阳供电公司，河南安阳455000

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-07-25 发布日期:2010-07-25

Reason analysis of breaker tripping caused by interference

SHU Yishi, MA Lili, HU Jianli

Anyang Power Supply Company, Anyang 455000, China

Received:1900-01-01 Revised:1900-01-01 Online:2010-07-25 Published:2010-07-25

摘要/Abstract

摘要： 对某500kV变电站5011断路器合闸空充主变压器、5032断路器跳闸事件进行调查及分析，得出其动作为干扰所致。500kV超高压电网设备操作时，电气设备周围的静电场和磁场、电晕和电磁波辐射等引起的电磁干扰通常情况下比较大，而500kV断路器操作电压又比较低，所以极易受到干扰。通过此次事故的分析，对防跳继电器的规范整定提出了更严格的要求。


关键词: 跳闸, 干扰, 防跳继电器

Abstract: In a 500kV substation, when the breaker No.5011 was switched on to charge the main transformer without load, the breaker No.5032 was tripped. The accident was investigated and analyzed, and the conclusion was obtained that the action of the breaker No.5032 was caused by the interference. When the equipment of the 500kV EHV power grid is being manipulated, the electromagnetic interference, which caused by the static electric field and the magnetic field around the equipments, the corona and the electromagnetic radiation, often is larger, and the operating voltage of the 500kV breaker is lower; therefore, it is easy disturbed. According to the analysis of this accident, more rigorous requirement of the normative setting of the antijump relay was put forward. 

Key words: tripping, interference, anti-jump relay

舒逸石;马丽丽;呼建礼. 一起因干扰导致断路器跳闸的原因分析[J]. 华电技术, 2010, 32(7): 62-63.

SHU Yishi;MA Lili;HU Jianli. Reason analysis of breaker tripping caused by interference[J]. Huadian Technology, 2010, 32(7): 62-63.

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