Prevention of marginal corona discharges in the insulation of high-voltage electric machines

被引：0
|
作者：
Vakser B.D.
Pishchulina O.P.
机构：
来源：
Russian Electrical Engineering | 2009年 / 80卷 / 3期
关键词：
Allowable loads; Corona discharge; Discharge extinction gradient; End-winding semiconducting coating;
D O I：
10.3103/S1068371209030043
中图分类号：
学科分类号：
摘要：
The problem of preventing corona glowing discharges at the junction of slot and end-winding semiconductive coatings is investigated. Allowable electrical stress and current density are determined and used to calculate the two-step stress-grading coating. The proposed construction of end-winding coatings was used to produce 20-kV turbogenerators and checked by long-term sample testing. © 2009 Allerton Press, Inc.
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页码：136 / 138
页数：2
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