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도포된 오일의 변화에 따른 Epoxy/EPDM 계면의 교류 절연파괴 특성에 관한 연구
배덕권,정일형,오재한,박우현,이기식,김충혁,이준웅,Bae, Deok-Gwon,Jeong, Il-Hyeong,O, Jae-Han,Park, U-Hyeon,Lee, Gi-Sik,Kim, Chung-Hyeok,Lee, Jun-Ung 대한전기학회 2000 전기학회논문지C Vol.54 No.12
Many successful developments and microscopic studies have been made on the high quality insulating materials. However, a little attention have given to the macroscopic interface in HV(High Voltage) insulating systems. In this study, AC interfacial breakdown strength and V-t characteristic of the interface between Epoxy/EPDM(ethylene propylene diene terpolymer) are investigated. Electrode system is designed to reduce the charges from electrodes and to have the tangential potentials along the interface between Epoxy/EPDM by FEM(finite elements method). The AC breakdown strength is observed when HV is given to the interface. It is shown that AC interfacial breakdown strength is improved by increasing interfacial pressure and oiling. In particular, it was saturated at certain interfacial pressure level. V-t characteristic is able to extend to the life time of the interface between Epoxy/EPDM. Oiling also plays a good roll in prolongation of the life time.
표재성 방광암환자에서 방광내 BCG 주입 후 발생한 간질성 폐렴 1례
이수성 ( Lee Su Seong ),정일형 ( Jeong Il Hyeong ),김기욱 ( Kim Gi Ug ),홍현표 ( Hong Hyeon Pyo ),이성호 ( Lee Seong Ho ),양대열 ( Yang Dae Yeol ),김성용 ( Kim Seong Yong ),김하영 ( Kim Ha Yeong ),모은경 ( Mo Eun Gyeong ) 대한결핵 및 호흡기학회 2001 Tuberculosis and Respiratory Diseases Vol.50 No.3