Investigation on the low frequency dielectric response of ground-wall insulation of rotating machine windings

被引:2
|
作者
David, E [1 ]
Taghizad, R [1 ]
Lamarre, L [1 ]
Nguyen, DN [1 ]
机构
[1] Ecole Technol Super, Montreal, PQ H3C 1K3, Canada
关键词
D O I
10.1109/CEIDP.2003.1254818
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In order to assess the quality of stator winding insulation, laboratory and field instruments measuring the charge and discharge currents flowing through rotating machine ground-wall winding insulation were developed. These instruments apply a do voltage step during a variable charging time at various voltage levels followed by a discharge step during which the insulating dielectric is shorted to ground. The current is continuously monitored during both the charge and the discharge steps. An investigation was conducted for epoxy-mica insulation systems in laboratory as well as on complete windings in the field.
引用
收藏
页码:157 / 160
页数:4
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