一起变压器突发压力继电器动作跳机的分析  

Analysis of a Transformer Sudden Pressure Relay Action Jumper

作　　者：陈光伟 王旭辉 何刚 CHEN Guang-wei;WANG Xu-hui;HE Gang(Guizhou Xishui Dingtai Energy Development Co.,Ltd.,Xishui 564611,China;Chongqing Hechuan Power Generation Co.,Ltd.,Chongqing 401520,China)

机构地区：[1]贵州省习水鼎泰能源开发有限责任公司,习水564611 [2]重庆合川发电有限责任公司,重庆401520

出　　处：《应用能源技术》2020年第3期1-4,共4页Applied Energy Technology

摘　　要：基于某发电厂#4高厂变突发压力继电器动作,机组故障停运,通过分析得出以下结论:高厂变突发压力继电器密封盖呼吸器处防雨帽长时间缺失,继电器接点受潮起卤,常开动静触头间绝缘被击穿,是机组故障停机的主要原因之一;高厂变突发压力保护定值出口方式由"跳闸"改为"发信"执行不到位,是停机事故发生的又一关键因素。针对上述问题提出相应整改措施,全面检查厂内各变压器,旨在杜绝类似事件发生,望能给各发电企业提供参考。Based on the operation of the sudden pressure relay in a power plant#4,the following conclusion is drawn through the analysis:The lack of rain cap at the sealing cover respirator of the sudden pressure relay at the high plant change for a long time,the damping of the relay contact point and the breakdown of the insulation between the constant opening and moving contacts are the main reasons for the failure of the unit.In view of the above problems,corresponding rectification measures are put forward,and the transformers in the plant are inspected in an all-round way to prevent the occurrence of similar incidents,hoping to provide reference for the power generation enterprises.

关 键 词：变压器 防雨帽 保护定值 突发压力继电器 

分 类 号：TM403.5[电气工程—电器]