摘要
对一例大型水力发电厂发电机出口离相式封闭母线进行交流耐压过程中的异常进行分析和阐述,经确认事件是母线式TA等电位线连接螺栓断裂造成的。针对发电机封闭母线母线式TA提出了制造工艺、安装和运行管理过程中的防范措施。
The abnormity in the process of AC withstand voltage of a large-scale hydropower station′s generator outlet isolated phase enclosed bus was introduced and analyzed.It was confirmed that the incident was caused by a break of the busbar TA equipotential bonding bolt.Aiming at the enclosed busbar bus-type TA of the generator,the preventive measures in the manufacturing process,installation and operation management were proposed.
作者
何宗雷
李如芬
李雪峰
王臣玺
蔺鑫
方鹏兴
HE Zonglei;LI Rufen;LI Xuefeng;WANG Chenxi;LIN Xin;FANG Pengxing(Yunnan Electric Power Company Limited,Lincang Electric Power Bureau,Lincang 677000,China;Yunnan Electric Power Technology Co.,Ltd.,Kunming 650217,China)
出处
《电工技术》
2020年第9期159-160,共2页
Electric Engineering
关键词
封闭母线
交流耐压
母线式TA
enclosed busbar
AC voltage withstand
busbar type TA