THE INFLUENCE OF SQUARE VOLTAGE WAVEFORMS ON TRANSFORMER INSULATION BREAK DOWN VOLTAGE

被引：0
|
作者：
Koltunowicz, Tomasz [1 ]
Cavallini, Andrea [2 ]
Djairam, Dhiradj [1 ]
Montanari, Gian Carlo [2 ]
Smit, Johan [1 ]
机构：
[1] Delft Univ Technol, High Voltage Technol & Management, Mekelweg 4, NL-2628 CD Delft, Netherlands
[2] Univ Bologna, Dipartimento Ingn Elettr, I-40136 Bologna, Italy
来源：
2011 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, VOLS 1 AND 2 | 2011年
关键词：
D O I：
暂无
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：
The use of Voltage Source Converters (VSCs) in HVDC transmission and, more generally, in flexible AC transmission systems (FACTS), raises concerns over the endurance of turn/turn insulation of grid/converter interface transformers. In this paper, tests performed on oil-impregnated paper specimens are discussed. The results indicate clearly that shorter rise times and higher repetition frequencies have a strong impact on both partial discharge inception voltage and breakdown voltage. These results suggest that deeper investigation might be important to understand the long term behavior of these insulation systems.
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页码：48 / 51
页数：4
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