摘要
针对低压设备事故频繁发生的问题,使用电磁暂态计算程序ATP-EMTP(ATPDRAW)就某110 kV变电站雷击进线段杆塔塔顶落雷引起的过电压进行建模与仿真,通过建立系统中配电变压器、电源线、避雷器、接地系统等相关元器件的数学仿真模型,进行了雷击点、运行方式和杆塔接地电阻的比较,讨论了绝缘配合裕度计算等重要因素对雷电过电压的影响。
Aiming at frequent faults existing in low voltage equipment, ATP - EMTP （ATPDRAW） was used to model and simulate overvoltage caused by lightning on the top of incoming transmission tower in one substation. Through establishing the digital simulation model of distribution transformers, power lines, attesters, grounding system, and relevant components, lightning points, operation modes, and tower grounding resistance were compared and the influence of important factors such as insulation corporation margin on lightning overvoltage were discussed.
出处
《湖南电力》
2009年第3期12-15,共4页
Hunan Electric Power
关键词
雷电定位
过电压
计算
lightning location
overvoltage
calculation
