双ZBS2型酒杯塔输电线路雷电绕击特性研究  

Study on Lightning Shielding Failure Characteristics of Double ZBS2 Cup-Tower Transmission Line

作　　者：刘璇[1] 刘全桢[1] 毕晓蕾[1] 姜辉[1] 刘宝全[1] 张长秀 高剑[1] 刘娟[1] Liu Xuan;Liu Quanzhen;Bi Xiaolei;Jiang Hui;Liu Baoquan;Zhang Changxiu;Gao Jan;Liu Juan(State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering,Shandong,Qingdao,266071)

机构地区：[1]中国石化青岛安全工程研究院化学品安全控制国家重点实验室

出　　处：《安全、健康和环境》2019年第3期16-19,共4页Safety Health & Environment

基　　金：国家重点研究开发计划项目微型电场传感器(2016YFC0801200);国家重点研究开发计划项目典型危险化学品储存设施安全预警与防护一体化关键技术研究与应用示范(2016YFC081201)

摘　　要：通过建立缩小比例为25:1的双ZBS2型酒杯塔输电线路模型,对其进行长间隙放电,研究了塔头、避雷线保护角、地面倾斜度等因素对雷击绕击率的影响。结果表明:杆塔对雷电先导具有吸引作用,雷击杆塔附近时,线路绕击率较低,从杆塔到档距中央,绕击率呈现一种先增大后减小的趋势;随着避雷线保护角由正到负变化,绕击概率随之降低;线路绕击概率随地面倾斜角增大,而呈现先增大后减小的趋势。本研究结果可指导企业输配电线路的雷电防护工作,为线路绕击防护装置的研发提供数据支持。The influence of tlie tower head, the protection angle of lightning arrester and the ground tilt on lightning shielding failure rate was studied by long gap discharging experiments with a 25 : 1 double ZBS2 cup tower transmission line model. It was found that the tower attracted lightning leader. The shielding failure rate was low near the tower, and first increased and then decreased when moving towards the middle of the span. The shielding failure probability decreased when the protection angle changed from positive to negative, and increased first and then decreased when ground inclination angle increased. The results of this study can guide the lightning protection work of transmission and distribution lines in enterprises, and provide data support for the development of line shielding protection devices.

关 键 词：输配电线路 微缩模型 绕击 长间隙放电 

分 类 号：TM863[电气工程—高电压与绝缘技术]