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Waveform analysis of partial discharge current in liquid nitrogen immersed insulation

被引：0
|
作者：
Kanegami, M
Hozumi, N
Suzuki, H
Okamoto, T
机构：
来源：
IEEE 1996 ANNUAL REPORT - CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, VOLS I & II | 1996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：
This paper deals with the partial discharge characteristic in liquid nitrogen immersed insulation using high frequency detection system. AC voltage of 3-6 kV were applied on a needle-plane electrode system in which a polyethylene terephthalate film was inserted. Partial discharge detection was carried out using a wide band current detection system that has a frequency range up to 250MHz. Frequency analysis was done in both low and high frequency bands. It was found that the signal component within 150-250MHz had a correlation with the discharge mode. The signal component within 1-10MHz had a correlation with PD charge magnitude. Based on the above results, the partial discharge measurement with high frequency range is suggested to be effective for the monitoring of discharge mode.
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收藏
页码：529 / 532
页数：4
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