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110kV长线供电系统的过电压研究 被引量:10

Study on the Overvoltage for 110kV Power Supply System with a Long Line
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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
关键词 电力系统 供电系统 过电压 并联电抗器 工频过电压 操作过电压 power supply system with a long line power frequency overvoltage s witching overvoltage
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  • 1HWDommel(李永庄 林集明 曾昭华译).电力系统电磁暂态计算理论[M].北京:水利电力出版社,1991..
  • 2ESMOL Subcoannittee. Maximum Switching Overvoltages on Systems of 115 kV and Above[A]. IEEE 8th. InternationalConference on Transmission & Distribution Construction, Operation & Live-line Maintenance Proceedings[C], Orlando, Florida,U.S., 1998.

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