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GIS 절연진단센서 설계와 연면방전에 따른 방사전자파 특성
박숭규(Sung-Gyu Park),최은혁(Eun-Hyeok Choi),이광식(Kwang-Sik Lee) 한국조명·전기설비학회 2012 조명·전기설비학회논문지 Vol.26 No.10
If obstacle in GIS(Gas Insulted Switchgear), its affects are great are on the community and it is consequently demanded lots of difficulities to recover and repair. Accordingly, diagnosis techniques, that are able to prevent from accidents before they happen by providing more stable and highly reliable power effectively and finding sign of the accidents is very important. A novel UHF(Ultra High Frequency)-microstrip antenna is presented. The measured impedance bandwidth of the proposed antenna is from 0.5GHz to 15GHz with the stop band from 0.5GHz to 10.7GHz for VSWR<2. Form results of this study, The antenna is will play an important role for the senser for insulation diagnosis system by UHF method of real site GIS and power equipment using SF<SUB>6</SUB> gas.
N2/O2 혼합가스 중 적층된 고체절연물의 연면절연성 향상에관한 연구
임동영,박혜리,박숭규,최상태,박원주,이광식 한국조명·전기설비학회 2012 한국조명·전기설비학회 학술대회논문집 Vol.2012 No.10
본 논문은 적층되어진 고체절연물을 적용시켜 N2/O2 혼합가스 중 연면절연성 향상을 연구한 논문이다. 적층된 고체절연물의 장점은 고유용량에 의한 전압분배, 삼중점 전계의 조절로 추측되어졌고, 그 추측은 실험결과를 고찰하는데 유용하게 적용되었다. 동일한 고체절연물로 적층한 경우는 삼중점 전계가 연면절연성에 지배적이었고, 상부측의 고체절연물을 변화시킨 경우는 고유용량에 의한 전압분배의 효과가 나타났다. 이 효과는 적층된 고체절연물의 비유전율 차이가 커야 나타남을 확인하였다. 이 논문의 결과는 연면절연성 향상에 유용한 자료가 될 것이다
최은혁(Eun-Hyeok Choi),박숭규(Sung-Gyu Park),임창호(Chang-Ho Lim),도영회(Yeong-Hoei Do) 한국조명·전기설비학회 2021 한국조명·전기설비학회 학술대회논문집 Vol.2021 No.11
The frequency spectrum distribution characteristics of radiated electromagnetic waves from discharge progress in the power facilities were analysed by an antenna and a spectrum analyser. From this research results, it can be possible to develop insulation diagnostics system by designing and by fabricating an antenna applicable to the various power electrics for the sake of construction of insulation diagnosis.
주상변압기의 절연매질인 광유의 절연파괴특성에서 분해생성물의 영향
임동영(Dong-Young Lim),박숭규(Sung-Gyn Park),박철호(Cheol-Ho Park),김기채(Ki-Chai Kim),이광식(Kwang-Sik Lee),최은혁(Eun-Hyeok Choi) 한국조명·전기설비학회 2014 조명·전기설비학회논문지 Vol.28 No.6
This paper deals with the effect of decomposition products which occur in breakdown of mineral oil, on the insulation characteristics of its oil. Breakdown tests in the oil were conducted by the proposed experimental methods under a quasi-uniform field and AC HV (60㎐). The breakdown voltage in the oil shows characteristics of dispersion from successive breakdowns and, it is found that there are three patterns of the decomposition products behavior at the process of breakdown progress in the oil. Finally, the breakdown voltage dispersion in the oil can be described in detail based on the behavior patterns of the decomposition products and its diffusion time.