摘  要：目前基于隔离开关、引流板及引线接头等变电高压设备接头发热缺陷研制了不同的地电位带电作业消缺装置，每套装置是针对单一设备单一缺陷设计的，在现场应用不够灵活，尤其是紧急抢修等特殊环境，不能很好满足设备消缺需求。针对此问题研制一款地电位带电处理35～220kV变电站高压设备接头发热的装置，作业人员在地面利用该装置就能够安全快速的处理发热缺陷，实现带电紧固螺栓、带电除锈和带电进行短接分流功能。

关键词：变电高压设备;接头发热;地电位;带电处理

中图分类号：TM63         文献标志码：A         文章编号：2095-2945（2020）21-0103-03

Abstract： At present， different devices for eliminating defects in ground potential live work are developed based on the heating defects of connectors of substation high voltage equipment， such as isolation switch， drainage plate and lead connector. Each device is designed for a single defect of a single equipment， and its application in the field is not flexible enough. Especially in the special environment such as emergency repair， it can not well meet the needs of equipment elimination. In order to solve this problem， a device for dealing with heating of joints of high voltage equipment in 35～220kV substation with ground potential is developed. Operators can safely and quickly deal with heating defects on the ground by using this device， and realize the functions of live fastening bolts， live rust removal and live short connection and shunt.

Keywords： substation high voltage equipment; joint heating; ground potential; live treatment

引言

变电站高压设备由于长期运行以及大气污染、大负荷、大电流等因素的作用，接头表面氧化会越来越严重，在高温、高负荷时期，隔离开关触指接触处、线夹与导线的螺栓固定接触处出现异常过热现象[1]，從而引起重大事故，直接威胁电力安全生产，并造成严重的经济损失。目前，电力公司大多采取常规停电检修的方法来处理异常发热[2]，然而紧急停电进行处理，既损失了电量，有时复杂的倒闸操作还会引起新的事故，又影响电网供电可靠性，对此，考虑用安全、高效的地电位带电作业的方法处理变电高压设备接头发热问题。

由文献[1-6]可知，现有地电位带电处理变电高压设备接头发热工器具主要有3套：（1）隔离开关发热缺陷的带电检修工器具;（2）地电位带电拆接变电站引线接头装置;（3）地电位带电搭接短路分流线装置。……