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Kim, J.Y.;Song, I.K.;Kim, S.J.;Kwon, D.J.;Kim, S.K.;Kwak, H.R.
- Proceedings of the KIEE Conference
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- 1996.07c
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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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서광석;김충기
- Journal of the Korean Institute of Telematics and Electronics
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- v.16 no.2
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- pp.7-14
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- 1979
Design considerations of I2L are discussed with particular emphasis on the upward current gain of the npn transistor, 6J Several test structures have been fabricated to measure the DC and AC characteristics of the I2L basic cell and the base current components of the npn transistor. A T flip-flop has also been designed and fabricated using the I2L technology. The upward current gain of 10 the speed -power product of the 2.6pJ/gate and the minimum propagation delay time of 36 nsec have been obtained from the test structure. The maxmum toggle frequency of the T flip -flop has been measured to be 3.5 MHz.
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Lee, J.G.;Shin, Y.J.;Heo, J.C.;Moon, I.W.;Kim, M.H.;Kang, Y.S.
- Proceedings of the KIEE Conference
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- 2003.07c
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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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