Evaluation of medium voltage stator bar groundwall insulation under inverter-fed pulses

被引：0
|
作者：
Haq, Saeed Ul [1 ]
Jayaram, Shesha H. [1 ]
Cherney, Edward A. [1 ]
机构：
[1] Univ Waterloo, Dept Elect & Comp Engn, 200 Univ Ave W, Waterloo, ON N2L 3G1, Canada
来源：
2006 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA | 2006年
关键词：
D O I：
10.1109/CEIDP.2006.311970
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 this research work, the behavior of medium voltage stator bar groundwall insulation that is subjected to steep-front voltage pulses, at various repetition rates and temperatures, is studied. The test conditions include; pulse voltage amplitudes up to 3.5 kV(p), pulse switching frequencies up to 3 kHz, and in ambient temperatures of 23 and 155 degrees C. During the aging process, the surface temperature is monitored with an infrared camera as a means for determining the locations of the highest temperature and therefore the highest regions of PD activity. Visual observations confirm degradation of the groundwall insulation in the regions of highest temperature and PD measurements show increased activity and reduced PD inception with aging.
引用
收藏
页码：465 / 468
页数：4
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