摘要
220 kV变电站经常发生110 kV线路越级跳闸事故,一旦发生,将扩大事故停电范围,造成大面积停电事故,导致供电服务中断,电力企业和电力用户均面临较大损失。针对这一现象,通过建立220 kV仿真变电站模型进行故障原因分析,并深入研究制定出有效措施。在事故出现时,能及时处理,提高事故处理效率。
It exists skip trip in 110 kV line of 220 kV substation. Once it happens,it will expand the scope of the accident blackout and cause serious accidents of large power outages. This phenomenon leads to tripping of the main transformer backup protection action.According to this phenomenon,a 220 kV simulation substation model is constructed. It carries out the cause analysis of the fault,deepens the research and works out effective measures. When this accident occurs,it can be processed in time to improve the efficiency of accident treatment.
作者
闫炳耀
王鹏
YAN Bingyao;WANG Peng(State Grid Jiaozuo Power Supply Company, Jiaozuo, Henan 454001, China;State Grid Liaoning Maintenance Company, Shenyang, Liaoning 110003, China)
出处
《东北电力技术》
2018年第4期14-16,共3页
Northeast Electric Power Technology
关键词
越级跳闸
严重事故
后备保护
模型
原因分析
有效措施
skip trip
serious accident
backup protection
model
cause analysis
effective measures
