摘要
建立了一个110kV长线供电系统模型,用软件EMTP对该系统进行了工频过电压和操作过电压的计算。结果表明:如线路长度在200km左右,系统的工频过电压和操作过电压均在允许范围之内,除在线路上加装一定容量的并联电抗器外,不需要采取特别的措施加以限制。
The computation of power frequen cy overvoltage and switching overvoltage in a model of110kV transmission network w ith a long line by software EMTP is presented in this paper.The results show tha t the power frequency overvoltage and switching overvoltage are all within the limita-tion of design criteria if the line is around200km,so it needs no speci al means to limit these overvoltages except some shunt reactors added on the lin e.
出处
《高压电器》
CAS
CSCD
北大核心
2004年第1期14-16,共3页
High Voltage Apparatus