公伯峡330kV输电系统的过电压分析  

STUDY ON THE OVERVOLTAGE FOR THE330kV POWER TRANSM ISSION PROJECT OF GONGBO GORGE

作　　者：谢鹏[1] 施围[1] 桑志强 阮全荣 

机构地区：[1]西安交通大学,陕西西安710049 [2]西北勘测设计院,陕西西安710001

出　　处：《高压电器》2002年第5期19-21,共3页High Voltage Apparatus

摘　　要：利用EMTP对公伯峡330kV输电系统的工频过电压及操作过电压进行了计算。结果表明,该系统的工频过电压符合有关规定。取消线路开关的合闸电阻,而仅用金属氧化物避雷器,即可有效地限制操作过电压。The computation of power frequency overvoltage and switching overvoltage in a330kV power transmission project of Gongbo Gorge by EMTP is presented in this paper.The results show that the power frequency overvoltage is within the extent of design criteria,and the closing resistor inside circuit breaker can be eliminated while the switching overvoltage can be limited effectively merely by MOA.

关 键 词：公伯峡330kV输电系统 过电压分析 工频过电压 操作过电压 合闸电阻 过电压保护 金属氧化物避雷器 

分 类 号：TM86[电气工程—高电压与绝缘技术]