Abstract: The induced voltage of the electrical equipment is too high during the overhaul.When the grounding switch can not be operated, it is necessary to connect the temporary grounding wire. The arc fault will affect the safe operation of the equipment. In this paper an anti-arc device for temporary grounding wire hanging is developed, and a grounding wire switching system based on the current limiting reactor is presented. This system can compensate the instantaneous current, and reduce the overvoltage level. Moreover,when the overvoltage is limited to a reasonable value, the grounding state is switched to direct grounding by control system. The application results show that the device can prevent the grounding arc caused by the induced voltage in the grounding process effectively,has the advantages of convenient installation and high security,and improve the efficiency greatly.

Key words: induced electricity, earth wire, current limiting reactor, arc preventing [1]陈昊,朱超,李义峰,等.输电线路工频电场的计算与测量研究[J].电气工程学报,2016,11(5):40-45.
[2]巢亚锋,段建家,刘三伟,等.防虚挂便携式智慧接地线及其状态监测系统设计[J]. 湖南电力,2020,40(1):1-5.
[3]李振强,刘传铨,戴敏.交流1 000 kV与500 kV_220 kV同塔4回线路的感应电压和电流[J].高电压技术,2013,39(12):3022-3028.
[4]张浩民. 同塔多回输电线路感应电流、电压的研究[D]. 广州:华南理工大学,2014.
[5]陈瑞珍,代文良,谢智浩,等. 基于在线式绝缘监测装置接地选线的环网点定位方法[J]. 湖南电力,2020,40(2):59-61,67.
[6]刘俊勇,颜天佑,丁俊杰,等. 同塔四回输电线路检修作业临时接地线挂接方式研究[J]. 电网与清洁能源,2016,32(1):19-23.
[7]陈昊. 基于广义自回归条件异方差模型的负荷预测新方法[J].电力系统自动化, 2007, 31(15): 51-54.
[8]Hao Chen, Jianzhong Zhang, Yubo Tao, et al. Asymmetric GARCH type models for asymmetric volatility characteristics analysis and wind power forecasting[J]. Protection and Control of Modern Power Systems, 2019, 4(1): 356-366.
[9]张志丰,肖立业,邱清泉,等. 一种改进串联谐振型限流器[J]. 电工技术学报,2015,30(6): 169-177.
[10]陈昊,徐懂理,黄阮明,等. 交直流电场的实用计算与测量研究[J]. 南京工程学院学报(自然科学版),2018,16(2): 1-7.
[11]谭风雷,陈昊,朱超,等. 一种变压器冷却器防絮罩及其网孔尺寸设计方法[J]. 高压电器,2020,56(5): 235-242.
[12]谭风雷,张军,马宏忠. 基于趋势变化分段的电力负荷组合预测方法[J]. 华北电力大学学报(自然科学版),2020,47(2): 17-24.
[13]陈昊,刘怀宇,姚凯.采用自补偿复合电流判据的变电站长段动力电缆漏电监测方法[J].电力系统保护与控制,2022,50(12):172-179.
[14]徐浩,尹超勇,董国琴,等. 基于RTDS的线路非稳定性高阻接地故障仿真[J]. 湖南电力,2020,40(4):13-18. 徐浩, 尹超勇, 董国琴, 王善诺, 许立强, 欧阳帆, 朱维钧. 基于RTDS的线路非稳定性高阻接地故障仿真 [J]. 湖南电力, 2020, 40(4): 13-18. 曹文彬, 陈瑞珍, 曹斌, 代文良, 吴文健. 基于抗分布电容法直流接地故障查找与分析 [J]. 湖南电力, 2020, 40(4): 43-46.