摘要
GIS是电网中的重要设备之一,局部放电检测是检测其绝缘状态的重要方法。脉冲电流法、特高频法和超声波法是GIS局部放电现场检测的常用方法。文中建立综合3种检测方法的多方法试验平台,对GIS中常见的高压导杆金属凸起引起的电晕放电进行了检测,讨论了不同检测方法下电晕放电特性,比较了不同检测方法的特点。
Gas insulated switchgear （GIS） is the most important equipment in power grid. The partial diseharge （PD） detection is the premonitory deteetion method for the insulation failure. The UHF detection method, acoustic detection method and IEC60270 method for PD detection are mostly-used at site. The experimental system is set up and the eorona defect characteristics in actual GIS model are studied using above three methods. The three methods are eompared in this paper.
出处
《陕西电力》
2012年第4期72-74,共3页
Shanxi Electric Power
