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초음파 센서를 이용한 케이블 접속재내 부분방전 특성분석
신동석(Dong-Seok Shin),이동준(Dong-Zoon Lee),류성식(Sung-Sic Ryu),곽희로(Hee-Ro Kwak) 한국조명·전기설비학회 2000 한국조명·전기설비학회 학술대회논문집 Vol.2000 No.-
This paper describes the study on the basic characteristic of discharge generated in cable splices using ultrasonic measurement method. Two kinds of defect which might be existed in a real cable splice were simulated. One is surface discharge moisture and metallic alien substances and the other is partial discharge by metallic particle. As a result there were some differences in the characteristics of ultrasonic signals according to each defect. Therefore, it was found that it could be possible to protect the failure in cable splices in advance by analyzing the ultrasonic signals coming from the cable splice due to partial discharge.
GIS내 파티클 상태에 따른 방전패턴 및 초음파 신호 특성 연구
이곤(Kon Lee),이동준(Dong-Zoon Lee),이재걸(Jae Gul Lee),류성식(Sung Sic Ryu),신동석(Dong Suk Shin),곽희로(Hee Ro Kwak) 한국조명·전기설비학회 1999 한국조명·전기설비학회 학술대회논문집 Vol.1999 No.-
This paper describes the characteristics of PD patterns and acoustic signal for the possible four states of particles in GIS. For each case of defect, the PD patterns and acoustic signals were measured and analyzed. As a result, the characteristics of the discharge patterns and ultrasonic signals depending for each defect state could be distinguished. Using the discharge patterns and ultrasonic signal waves, the defects in the GIS and the states of the particles can be distinguished.