摘要
随着用户对供电可靠性的要求越来越高,10 kV配电网络中已普遍采用联络供电方式。通过合解环操作,可以实现负荷的不停电转移。相序相位正确是线路合环操作的基础,合环点两侧电压相角差越大,合环时的冲击越大,甚至会导致线路跳闸。文章结合一例60°角差合环事故,分析现象发生的原因,提出故障定位思路与解决思路,为后续合环操作中的故障定位提供了参考。
With the increasing demand of users for power supply reliability,the contact power supply mode has been widely used in 10 kV distribution network.Load can be transferred without power cut through the operation of loop closing and breaking,while correct phase position and phase sequence is the basis of the operation.The greater the voltage phase angle difference is on both sides of the closing point,the greater impact it causes,and even a line trip.Based on the analysis of a 60-degree phase angle difference loop accident,this paper proposes fault positioning ideas and solutions,which provides reference for fault positioning in subsequent loop closing operation.
作者
吕晓娜
陶伟龙
王洪波
梁昆
张传海
LYU Xiaona;TAO Weilong;WANG Hongbo;LIANG Kun;ZHANG Chuanhai(State Grid Hefei Power Supply Company, Hefei 230022, China)
出处
《安徽电气工程职业技术学院学报》
2022年第1期1-5,共5页
Journal of Anhui Electrical Engineering Professional Technique College
关键词
出线
相位差
合解环操作
transmission line
phase difference
loop closing and breaking
