发电机出口离相封闭母线交流耐压试验异常分析  

Analysis of Abnormal of AC Voltage Withstand Test of Isolated Phase Bus at Generator Outlet

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)

机构地区：[1]云南电网有限责任公司临沧供电局,云南临沧677000 [2]云南电力技术有限责任公司,云南昆明650217

出　　处：《电工技术》2020年第9期159-160,共2页Electric Engineering

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.

关 键 词：封闭母线 交流耐压 母线式TA 

分 类 号：TM306[电气工程—电机]