Problems with modern air-cooled generator stator windings

被引：0
|
作者：
Tucker, S [1 ]
Milsom, J [1 ]
Griffith, G [1 ]
Stone, G [1 ]
机构：
[1] Natl Power PLC, Selby, England
来源：
INTERNATIONAL CONFERENCE ON POWER STATION MAINTENANCE 2000 | 2000年 / 2000卷 / 07期
关键词：
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The widespread use of air-cooled turbine generators has reduced the capital cost of modern gas-fired and combined cycle plants. However problems have recently been experienced in some of the stator windings in such generators. These problems include deterioration and failure of the insulation in the stator slot due to coil vibration. This has occurred in both conventional and global VPI stators. In addition, some machines have seen problems with partial discharge in the endwinding and lead area due to insufficient spacing between high voltage components. This paper presents examples of these problems, and discusses some repair alternatives.
引用
收藏
页码：137 / 144
页数：8
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