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.
出处
《电气开关》
2006年第6期5-6,9,共3页
Electric Switchgear
关键词
分级绝缘变压器
中性点
避雷器
放电间隙
继电保护
graded insulated transformer
neutral point
arrester
discharge space
relay protection
