Browse > Article
http://dx.doi.org/10.4313/JKEM.2008.21.1.085

Partial Discharge Measurement by a Capacitive Voltage Probe in a Gas Insulated Switch  

Kil, Gyung-Suk (한국해양대학교 전기전자공학과)
Park, Dae-Won (한국해양대학교 전기전자공학과)
Choi, Su-Yeon (한국해양대학교 전기전자공학과)
Kim, Il-Kwon (한국해양대학교 전기전자공학과)
Park, Chan-Yong (한국해양대학교 전기전자공학과)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.21, no.1, 2008 , pp. 85-89 More about this Journal
Abstract
An objective of this paper is to develop a partial discharge (PD) measurement device for monitoring gas insulated switches installed in power distribution system. A capacitive voltage probe was studied and designed to detect PD pulse without an electrical connection. The PD measurement device consists of the capacitive voltage probe attached outside of a bushing, a coupling network which attenuates AC voltage by 270 dB, and a low noise amplifier with the gain of 40 dB in ranges of 500 kHz${\sim}$20 MHz. The sensitivity of the prototype device calculated by a calibrator was 1.98 m V /pc. An application experiment was carried out in a 25.8 kV gas insulated switch and the peak pulse of 76.7 pC was detected. From the experimental results, it is expected that the PD measurement device can be applied to online monitoring system of gas insulated switches.
Keywords
Partial discharge; Gas insulated switch; Capacitive voltage probe; Coupling network; Low noise amplifier; Online monitoring;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 P. D. Agoris, S. Meijer, and J. J. Smit, 'E valuation of On-line Insulation Condition Assessment Techniques for power transformers', International Symposium on High-Voltage Engineering(ISH), Beijing, China, 2005
2 IEC Publication 60270, High-voltage test techniques- Partial discharge measurement, 2000
3 F. H. Kreuger, 'Partial Discharge Detection in High-Voltage Equipment', Butterworth, p. 50, 1989
4 권태호, 이종길, 이준호, '광섬유 센서를 이용한 절연유내의 부분방전 위치검출에 관한 연구', 전기전자재료학회논문지, 16권, 9호, p. 838, 2003
5 이복희, 길경석, 이형호, 정상진, 하성철, 김상 진, '가스절연 개폐설비에서 급준성 과도과전 압의 측 정장치', 대한전기학회논문지, 43권, 10 호, p. 1721, 1994
6 길경석, 박대원, 김일권, 최수연, 박찬용, '부분 방전에 의한 음향신호의 검출과 위치추정에 관 한 연구', 전기전자재료학회논문지, 20권, 10호, p. 907, 2007   과학기술학회마을   DOI
7 S. Tenbohlen, D. Uhde, J. Poittevin, H. Borsi, P. Werle, U. Sundermann, and H. Matthes, 'Enhanced Diagnosis of Power Transformers using On- and Off-line Methods: Results, Examples and Future Trends', CIGRE Paris, paper 12-204, 2000
8 황창호, 박신우, 김남열, 허창수, '평등전계에서 $SF_6/CF_4$ 혼합가스의 AC절연내력특성', 전기전자재료학회논문지, 20권, 4호, p. 381, 2007   과학기술학회마을   DOI