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홍순석,오정석,유태군,Hong, Soon-Seuk,Oh, Jung-Suk,Yoo, Tae-Kun 한국조명전기설비학회 2005 조명·전기설비학회논문지 Vol.19 No.2
전자식 안정기는 형광등을 점등시키기 위하여 널리 사용되고 있다. 전자식 안정기의 실측을 통해 고조파 발생현황을 측정하고 고조파 해석용 등가회로를 모델링 하여 시뮬레이션을 하였다. 본 논문은 단상 부하의 고조파 해석용 등가회로 모델링과 설계 및 적용 시험을 하여 고조파를 저감시키고, IEC 61000-3-2와 IEEE Std 519-1992를 근거로 평가하였다. Electric ballast is widely used to turn on the fluorescent. Electric ballast measure occurrence of harmonic through the actual measurement and it is simulated by modeling equivalent circuit for harmonic analysis. The purpose of this paper is to give an equivalent circuit modeling methodology for the harmonic currents generated by single-phase loads to evaluate a commercially available series resonant filter for the harmonic currents compensation based on the IEC 61000-3-2 and IEEE Std 519-1992 standards for limiting harmonic distortion.
김태훈(Tae-Hoon Kim),최홍규(Hong-Kyoo Choi),홍순석(Soon-Suk Hong),송영주(Young-Joo Song),심용식(Yong-Sik Shim) 한국조명·전기설비학회 2009 한국조명·전기설비학회 학술대회논문집 Vol.2009 No.10월
기존 접지방식인 격자 메쉬접지와 제안한 방식인 사선 메쉬접지를 비교하였다. 동일 접지설계 제원을 가지고 사선 메쉬접지와 격자 메쉬접지를 비교한 결과, 최대예상 접촉전압, 접지저항, 총 접지도체의 길이 모두 감소하였다. 본문에서는 대지저항률, 매설깊이, 대지전류, 접지도체 단면적의 변화에도 사선 메쉬접지가 기존 격자 메쉬접지에 비해 우수한 성능을 나타내는 것을 시뮬레이션을 통해 증명하였다. The latticed mesh grounding is compared with the diagonal mesh grounding. In the result, The latticed mesh grounding better than the diagonal mesh grounding at the maximum touch voltage, the grounding resistance and the total length of conductors.
박현수,신영준,조수행,홍순석,정명수,한필순 한국공업화학회 1999 응용화학 Vol.3 No.1
An instrumented loop of stainless steel in which molten chloride salt is transported has been constructed and operated. The purposes of operating this equipment are to investigate the feasibility of transporting liquid salt with a pressurizing cylinder, to test the equipment and various instruments, and to determine whether pressurized salt loops are suitable for laboratory use. The principal components of the loop include a high temperature valve, vessel with furnace, and an orifice flow meter. The high temperature valve is a commercially available, needle valve. The orifice flowmeter is also a commercial item. Most of the connections in the loop are welded. A material test is conducted to evaluate the suitability of various materials of construction for process applications. Such items as transport lines, agitators, and associated equipment are included. Corrosion rates of various materials are obtained.