500kV某变电站雷电侵入波过电压计算  

Research on the lightning intruding surge protection for 500kV substation

作　　者：周艳青 谌阳 ZHOU Yanqing;CHEN Yang(China Energy Engineering Group Guangdong Electric Power Design Institute Co.,Ltd,Guangzhou 510663)

机构地区：[1]中国能源建设集团广东省电力设计研究院有限公司,广州510663

出　　处：《电气技术》2021年第3期104-108,共5页Electrical Engineering

摘　　要：本文以某500kV变电站的电气主接线、设备参数、线路及构架模型等为计算输入,利用电磁暂态程序,对某500kV变电站的雷电侵入波过电压进行了仿真计算,给出了该变电站在工程本期典型运行方式下,变电站设备上雷电过电压的最大值。根据雷电过电压计算结果,针对主变的最大雷电过电压值高于相应的雷电冲击耐受电压允许值,提出了改进措施,使得主变以及其他设备上的最大雷电过电压值均低于相应的雷电冲击耐受电压允许值,满足雷电防护要求。This paper takes the main electrical wiring,equipment parameters,transmission tower and gantry model of the 500kV substation as the calculation input,and uses the electromagnetic transient program to simulate the lightning intrusion wave overvoltage.The maximum lightning overvoltage on the substation equipment under the typical operation mode are calculated.Afterimprovement measures are proposed.The maximum lightning overvoltage value on the transformer and other equipment is lower than the allowable value,meets the requirements of lightning protection.

关 键 词：500KV变电站 雷电侵入波 过电压 防雷保护 

分 类 号：TM863[电气工程—高电压与绝缘技术] TM63