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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.10 No.1
- 발행연도
- 2015.1
- 수록면
- 344 - 354 (11page)
이용수
초록· 키워드
오류제보하기
In order to study the development of partial discharge (PD) under typical protrusion defects in gas-insulated switchgear, we applied step voltages on the defect and obtained the φ.u and φ.n spectrograms of ultra-high frequency (UHF) PD signals in various PD stages. Furthermore, we extracted seven kinds of features to characterize the degree of deterioration of insulation and analyzed their values, variation trends, and change rates. These characteristics were inconsistent with the development of PD. Hence, the differences of these features could describe the severity of PD. In addition, these characteristics could provide integrated characteristics regarding PD development and improve the reliability of PD severity assessment because these characteristics were extracted from different angles. To explain the variation laws of these seven kinds of parameters, we analyzed the relevant physical mechanism by considering the microphysical process of PD formation and development as well as the distortion effect generated by the space charges on the initial field. The relevant physical mechanism effectively allocated PD severity among these features for assessment, and the effectiveness and reliability of using these features to assess PD severity were proved by testing a large number of PD samples.
목차
Abstract
1. Introduction
2. Experimental Study
3. Analysis of Discharge Spectrograms
4. Discharge features and their variation laws
6. Evaluation of the Effectiveness of the Features
5. Mechanism Analysis of the Variation Laws of the Features
7. Conclusion
8. Discussion
References
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - M. D. Judd / 1996 / The Excitation of UHF Signals by Partial Discharges in GIS / IEEE Trans. Dielectrics and Electrical Insulation 3 (2) : 213 ~ 228
2. [학술지(정기간행물)] - N. van Schaik / 2008 / Conditions of Discharge-free Operation of XLPE Insulated Power Cable Systems / IEEE Trans. Dielectrics and Electrical Insulation 15 (4) : 1120 ~ 1130
3. [학술지(정기간행물)] - N. Nagesh / 1993 / Evaluation of Digital Filters for Rejecting Discrete Spectral Noise in Onsite PD Measurements / IEEE Trans. Dielectrics and Electrical Insulation 28 (1) : 73 ~ 85
4. [학술지(정기간행물)] - Z. R Xu / 2007 / Application of Complex Wavelet Transform to Suppress White Noise in GIS UHF PD Signals / IEEE, Trans. Power Delivery 22 (3) : 1498 ~ 1504
5. [학술지(정기간행물)] - J. Tang / 2010 / Suppression of the Periodic Narrowband Noise with Mixed Frequencies in Partial Discharge On-line Monitoring / Proceedings of the CSEE 30 (13) : 121 ~ 127
2. [학술지(정기간행물)] - N. van Schaik / 2008 / Conditions of Discharge-free Operation of XLPE Insulated Power Cable Systems / IEEE Trans. Dielectrics and Electrical Insulation 15 (4) : 1120 ~ 1130
3. [학술지(정기간행물)] - N. Nagesh / 1993 / Evaluation of Digital Filters for Rejecting Discrete Spectral Noise in Onsite PD Measurements / IEEE Trans. Dielectrics and Electrical Insulation 28 (1) : 73 ~ 85
4. [학술지(정기간행물)] - Z. R Xu / 2007 / Application of Complex Wavelet Transform to Suppress White Noise in GIS UHF PD Signals / IEEE, Trans. Power Delivery 22 (3) : 1498 ~ 1504
5. [학술지(정기간행물)] - J. Tang / 2010 / Suppression of the Periodic Narrowband Noise with Mixed Frequencies in Partial Discharge On-line Monitoring / Proceedings of the CSEE 30 (13) : 121 ~ 127
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UCI(KEPA) : I410-ECN-0101-2016-560-000980836