• 제목/요약/키워드: J-test

검색결과 5,301건 처리시간 0.036초

에폭시 BAR-TYPE 배전용 현수애자 개발 (Suspension insulator development of Epoxy casting Bar-Type)

  • 김주용;송일근;김상준;권동진;김석기;곽희로
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 하계학술대회 논문집 C
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    • pp.1529-1531
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    • 1996

  • Porcelain suspension insulators have teen used for a long time in distribution line. However, Puncture breakdowns in porcelain insulators caused by weaking cement between metal fitting nad porcelain material. There is little puncture breakdown in Epoxy casting insulator. This paper presents electrical test results for the development of suspension insulator used Cycloaliphatic Epoxy resin. Items of test results are as follow - Power Arc test - Aging test - Impulse flashover voltage tests - Puncture tests et.al.

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Intergrated Injection Logic - 설계에 대한 고찰과 실험결과 (Integrated Injection Logic- Design Considerations and Experimental Results)

  • 서광석;김충기
    • 대한전자공학회논문지
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    • 제16권2호
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    • pp.7-14
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    • 1979

  • Integrated Injecton Logic의 설계를 npn transistor 의 상향전류증폭율, βu 을 중심으로 하여 검토하였다. I2L 기본회로의 DC, AC특성과 npn transistor의 베이스 전류성분을 측정하기 위하여 test structure를 제작하였으며 또한 I2L T flip-flop도 설rP, 제작하였다. 제작된 test structure의 특성은 βe가 10, speed-power product가 2.6p.J/gate, 최소 전달지연 시간이 36 nsec 였으며 T flip-flop은 3.5 MHz 까지 동작하였다.

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초고압 절연시험을 위한 4.2MV 충격전압발생장치의 구축방안 검토 (A preliminary study on the construction of 4.2MV IVG for the UHV dielectric test)

  • 이정기;신영준;허종철;문인욱;김맹현;강영식
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2003년도 하계학술대회 논문집 C
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    • pp.1750-1752
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    • 2003

  • This paper, as a preliminary study, presents the important consideration in laboratory planning and designing 4.2MV impulse voltage generator(IVG), which enable to test and evaluate the UHV dielectric performance of power electric apparatus up to 765kv-class. To fix and confirm the kinds of loads and their capacities to be tested by KERI hereafter, wide investigation and an analysis of test objects, especially heavy electric apparatus of Korea, according to their ratings and test voltages have been conducted. With the special consideration concerning other matters in designing of 4.2MV IVG have been described with the practical examples and references.

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