摘要
对国家能源集团宿迁发电有限公司(以下简称宿迁电厂)一起6 kV进线PT熔丝烧断事件的起因及现象进行介绍,并经过分析得出PT铁磁谐振是导致本次故障的主要原因,同时详细阐述了铁磁谐振现象的产生条件和原理,列出了预防PT铁磁谐振的几种措施,论证了其有效性。
The causes and phenomena of a 6 kV PT fuse burn-out incident in Chinese Energy Group Suqian Power Generation Co.,Ltd.(hereinafter referred to as Suqian Power Plant) are introduced. And it is concluded that PT ferroresonance is the main cause of this fault. At the same time,the conditions and principles of ferroresonance are elaborated in detail. Several measures to prevent PT ferroresonance are listed and its effectiveness is demonstrated.
引文
[1]徐宜敏,张玲.电机学(第二版)[M].北京:中国电力出版社,2010.
[2]郭飞.电力系统铁磁谐振数字仿真研究[D].重庆:重庆大学,2007.
[3]曹亚旭,邵鹏.10k V母线PT高压保险熔丝熔断原因分析及解决措施探讨[J].继电器,2007,12(35):405-408.
[4]杨斌文,李文圣.电压互感器铁磁谐振的产生与消除[J].电力自动化设备,2010,30(3):134-136.