摘要
分析雅安电网一起因110 kV线路遭受雷击造成220 kV主变压器间隙保护动作跳闸事件,探索了主变压器间隙击穿的原因,并提出了针对线路雷击造成主变压器间隙保护动作的防治措施。
A tripping event of 220 kV main transformer gap relay action caused by the lightning stroke in 110 kV transmission line is analyzed,the reasons for the gap breakdown of main transformer are discussed,and then some control measures for the gap relay action caused by lightning stroke in transmission line are proposed.
出处
《四川电力技术》
2011年第2期30-31,73,共3页
Sichuan Electric Power Technology
关键词
间隙保护
雷击
改进措施
transformer gap protection
lightning stroke
improvement
