ULTRA-HIGH FREQUENCY ELECTROMAGNETIC-WAVE DETECTOR FOR DIAGNOSTIC OF METAL-CLAD SWITCHGEAR INSULATION

被引:1
|
作者
OZAWA, J
SHINDO, K
SARUTA, H
YAMASHITA, M
TAKAHASHI, E
机构
[1] HITACHI LTD,KOKUBU WORKS,HITACHI,IBARAKI 316,JAPAN
[2] HITACHI MED COOPERAT,KASHIWA,JAPAN
关键词
METAL CLAD SWITCHGEAR; INSULATION; TRACKING DISCHARGE; DIAGNOSTIC; ULTRA HIGH FREQUENCY ELECTROMAGNETIC WAVE; DETECTOR; SPECTRUM ANALYZER;
D O I
10.1109/61.296244
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 describes a newly developed ultra high frequency electromagnetic wave (UHF wave) detector for tracking discharges in metal clad switchgear (MCS) and its performance. The tracking discharges included waves with frequencies of more than a few hundred megahertz and the attenuation of the UHF waves transmitted through a MCS enclosure was about 10 dBmuV. On the other hand, noise in the ultra high frequency range was relatively low. The simple UHF wave detector was tested in the laboratory and field.
引用
收藏
页码:675 / 679
页数:5
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