l0kV配网长距离送电引起的谐振监测和消除研究  

Study on monitoring and eliminating the syntony caused by long distance transmission of lOkV distribution network

作　　者：廖颜深 程文锋[2] 

机构地区：[1]广东省重工建筑设计院有限公司,广东广州510030 [2]广东电网公司梅州供电局,广东梅州514000

出　　处：《贵州电力技术》2011年第6期57-58,29,共3页Guizhou Electric Power Technology

摘　　要：在我国的配网系统中，高压侧几乎都是三角形供电，从而造成中性点“虚幻接地”的不稳定性．再加上电磁式电压互感器和线路对地电容效应，导致配网易受谐波而产生过电压，危害电网安全。本论文重点分析了配网运行方式的特点以及诱发因素，最后还提出了谐振监测的方法、注意事项以及如何消除等。In our distribution network system, that the high -pressure side almost powering by delta connected, gives rise to the instability of neutral point ＂Virtual Earth＂. Electromagnetic voltage transformer and capacity effect in unloaded line lead to distribution network vulnerable to syntony which results in over - voltage and endangers electric network. This paper emphatically analyzes the characteristics of network distribution operation mode and inducing agent, and finally puts forward the methods and attentions of monitoring syntony and how to eliminate.

关 键 词：配网 中性点 谐波 电压互感器 电缆 

分 类 号：TM8[电气工程—高电压与绝缘技术]