110kV分级绝缘变压器中性点保护  

Neutral-point Protection of 110kV Graded Insulated Transformer

作　　者：张鹏 楼文耀 

机构地区：[1]甘肃兰州石化公司电仪事业部,兰州730060

出　　处：《电气开关》2006年第6期5-6,9,共3页Electric Switchgear

摘　　要：从分级绝缘变压器中性点的绝缘水平提出了变压器中性点过电压保护问题,对110kV分级绝缘变压器中性点避雷器和放电间隙的选择作了分析,并将间隙保护和二次继电保护结合起来作了合理配置和整定。The paper proposes overvoltage protection of neutral-point of the transformer from insulation level of graded insuldated transformer neutral point. The selection to the arrester and discharge space of the neutral point of 110kV graded insulated transformer is analyzed. And both the space protection and secondary relay prctection are combined to make rational configuration and setting.

关 键 词：分级绝缘变压器 中性点 避雷器 放电间隙 继电保护 

分 类 号：TM41[电气工程—电器]