摘要
针对多起35kV出线电力电缆及用户侧设备短路事故,导致主变低压绕组出现机械变形或者线圈间绝缘击穿、匝间短路故障进行了分析,并结合具体主变大修改造实例,介绍了主变改造方法步骤,供同行参考。
For many short circuit accidents of 35 kV outgoing power cable and user-side equipments, leading to the mechnical deformation, intercoil insulation breakdown and interturn short circuit faults of low-voltage winding of master substation, the corresponding analysis was carried out, and combined with the specific overhaul transformation examples, the transformation methods and steps of master substation were introduced, providing a reference for peers.
作者
李传东
尹庆
付兆升
徐霞
隋术山
和发波
Li Chuandong;Yin Qing;Fu Zhaosheng;Xu Xia;Sui Shushan;He Fabo(The Energy & Power Plant)
出处
《莱钢科技》
2019年第1期52-54,共3页
Laigang Science & Technology
关键词
主变
短路
分析
大修
改造
master substation
short circuit
analysis
overhaul
transformation