摘要
本文主要针对目前35kV不接地系统发生两相异地接地故障后,35kV系统整体电压与不同出线电流会发生怎样的变化,通过建立等效电路对此类故障的基本特征进行介绍。同时,通过对保护装置及录波器的数据进行分析,验证了两相异地接地故障保护动作行为。
This paper mainly aims at the ground fault analysis of 35kV ungrounded systems in different places the 35kV overall voltage system and different wire current will occur, the fault characteristics are introduced through the establishment of equivalent circuit. At the same time, the protection action of this kind of fault is verified through analyzing the data of protection device and recorder.
作者
刘俊才
刘晓华
杨自光
Liu Juncai;Liu Xiaohua;Yang Ziguang(Ordos Power Supply Bureau, Ordos, Inner Mongolia 017200;Hohhot Power Supply Bureau, Hohhot 010020)
出处
《电气技术》
2017年第12期146-148,151,共4页
Electrical Engineering
