지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전기학회 Journal of Electrical Engineering & Technology Journal of Electrical Engineering & Technology Vol.7 No.3
- 발행연도
- 2012.5
- 수록면
- 389 - 395 (7page)
이용수
초록· 키워드
오류제보하기
In this paper, we analyzed the frequency spectrum of the electromagnetic waves radiated by an electric discharge as a basic study to develop an on-line diagnostic technique for power equipment installed inside closed-switchboards. In order to simulate local and series arc discharges caused by an electric field concentration and poor connections, three types of electrode systems were fabricated, consisting of needle and plane electrodes and an arc generator meeting the specifications of UL 1699. The experiment was carried out in an electromagnetic anechoic chamber, and the measurement system consisted of a PD free transformer, a loop antenna with a frequency bandwidth of 150 kHz-30 MHz, an ultra log periodic antenna with a frequency bandwidth of 30 MHz-2 GHz, and an EMI test receiver with a frequency bandwidth of 3 Hz-3 GHz. According to the experimental results, the frequency spectra of the electrical discharges were widely distributed across a range of 150 kHz-400 MHz, depending on the defects, while commonly found between 150 kHz and 10 MHz. Therefore, considering the ambient noise and antenna characteristics, the best frequency bandwidth for a measurement system to monitor abnormal conditions by detecting electromagnetic waves in closedswitchboards is 150 kHz-10 MHz.
목차
Abstract
1. Introduction
2. Theory
3. Experiment and Method
4. Results and Discussion
5. Conclusion
Acknowledgements
References
참고문헌 (17)
참고문헌 신청
1. [학술대회논문] - S. Coenen / 2007 / Performance Check and Sensitivity Verification forUHF PD Measurements on Power Transformers / Proc. 15th Int. Symp. on High Voltage Engineering
2. [학술지(정기간행물)] - S. Coenen / 2008 / Sensitivity of UHF PD measurements in powertransformers / IEEE Trans. Dielectr. Electr. Insul. 15 (6) : 1553 ~ 1558
3. [학술지(정기간행물)] - Seoung-Yong Jung / 2007 / Discrimination of insulation defects in a Gas Insulated Switchgear (GIS) by use of a neural network based on a Chaos Analysis of Partial Discharge (CAPD) / Journal of Electrical Engineering & Technology 2 (1) : 118 ~ 122
4. [학술지(정기간행물)] - Kwang-Jin Lim / 2008 / A Study on the Design of a Planar Loop Sensor for Partial Discharge Diagnosis of 22.9 kV XLPE Power Cables / Journal of Electrical Engineering & Technology 3 (4) : 559 ~ 565
5. [단행본] - F. H. Kreuger / 1989 / Partial Discharge Detection in High-Voltage Equipment / Butterworths
2. [학술지(정기간행물)] - S. Coenen / 2008 / Sensitivity of UHF PD measurements in powertransformers / IEEE Trans. Dielectr. Electr. Insul. 15 (6) : 1553 ~ 1558
3. [학술지(정기간행물)] - Seoung-Yong Jung / 2007 / Discrimination of insulation defects in a Gas Insulated Switchgear (GIS) by use of a neural network based on a Chaos Analysis of Partial Discharge (CAPD) / Journal of Electrical Engineering & Technology 2 (1) : 118 ~ 122
4. [학술지(정기간행물)] - Kwang-Jin Lim / 2008 / A Study on the Design of a Planar Loop Sensor for Partial Discharge Diagnosis of 22.9 kV XLPE Power Cables / Journal of Electrical Engineering & Technology 3 (4) : 559 ~ 565
5. [단행본] - F. H. Kreuger / 1989 / Partial Discharge Detection in High-Voltage Equipment / Butterworths
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