摘要
针对变电站接地网腐蚀断裂点往往采用大面积开挖和掀盖板来查找,费时费力等缺点,提出两次定位法,根据变电站一般由主控制室、室外开关场和室内开关场三部分组成的特点,先利用电焊机接地扁铁来进行粗定位,确定含故障点区域,再运用电网络理论对含故障点区域进行细定位,进而可以快速精确找到故障点。最后通过实例分析验证了该方法的快速性和有效性,对今后处理类似问题具有很好的借鉴意义。
Aiming at the corrosion fracture points of grounding grids in substations, large area exca-vation and lifting plates are often used to find, waste time and energy, the paper puts forward a method of two location, according to the feature of substation which is composed by the main control room, outdoor switch field and indoor switch field, the first location confirms the fault parts coarsely which bases on grounding flat iron of the welding, and then the electric network theory is used to locate the fault point. Finally, the method, which has a good reference value for the future treatment of similar problems, is proved to be fast and effective by the example.
作者
张巍
钟著辉
李炜
刘洋
燕子飞
杨毅
梁渊然
李鹏
ZHANG Wei;ZHONG Zhuhui;LI Wei;LIU Yang;YAN Zifei;YANG Yi;LIANG Yuanran;LI Peng(School of Electrical and Information Engineering, Hubei University of Science and Technology, Xianning 437000, China;Changde Power Supply Company, Changde 415000, China)
出处
《电瓷避雷器》
CAS
北大核心
2018年第3期129-133,共5页
Insulators and Surge Arresters
关键词
变电站接地网
故障定位
腐蚀断裂
电网络理论
grounding grids of substation
fault location
corrosion fracture
theory of electrical network
