固原110kV系统主变压器中性点间隙保护配置探讨  

Configuration of main transformer neutral point gap protection in Guyuan 110kV system

作　　者：田学东 

机构地区：[1]宁夏固原供电局,固原市756000

出　　处：《宁夏电力》2007年第A01期20-22,26,共4页Ningxia Electric Power

摘　　要：针对固原电网实际,对110kV分级绝缘变压器间隙保护配置进行了分析,对中性点避雷器进行了配置校验,认为固原电网110kV变电所内的主变压器中性点不应加装放电间隙或人为加大间隙距离,以防止间隙保护误动作。Aiming at the reality of Guyuan power grid, analyzes the configuration of 110 kV grading insulation transforiner gap protection, make configuration and verification on neutral point arrester, personally thinks main transformer neutral point shouldn＇t install discharge gap or artificially enlarge gap distance, prevent the misoperation of gap protection.

关 键 词：变压器 中性点 保护 校验 间隙选择 

分 类 号：TM403.5[电气工程—电器]