Investigation on the possibility of silent partial discharges inside power transformers

被引:0
|
作者
Najafi, Seyed Amir Mahmood [1 ,2 ]
Werle, Peter [2 ]
机构
[1] Senvion GmbH, Validating High Voltage Components, Hamburg, Germany
[2] Leibniz Univ Hannover, Schering Inst High Voltage Engn & Asset Managemen, Hannover, Germany
关键词
Partial Discharge; Silent PD; acoustic emision; Silent discharge;
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 probability of creation of so called Silent-PDs is investigated by using a special configuration consisting of aramid papers impregnated with Midel 7131. A Needle-plane electrode arrangement is implemented to simulate the electrical stress on the surface of the insulation material. To record the acoustic emission (AE) signals from different sensors, they are mounted on the outside of a sample-tank. Based on the results achieved with this setup, reasons for the appearance of these kinds of discharges are discussed.
引用
收藏
页码:276 / 279
页数:4
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