Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Jong-Kee Choi"'
Autor:
Gyeong-Ryun Choi, Kwangho Kim, Min-Hae Park, Seonju Shim, Jong-Kee Choi, Yong-Sang Kim, Wansoo Nah
Publikováno v:
The transactions of The Korean Institute of Electrical Engineers. 71:1383-1392
Publikováno v:
The transactions of The Korean Institute of Electrical Engineers. 71:700-707
Publikováno v:
The transactions of The Korean Institute of Electrical Engineers. 71:766-775
Publikováno v:
The transactions of The Korean Institute of Electrical Engineers. 69:1649-1658
Publikováno v:
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 33:19-26
Analysis of lightning induced overvoltage has been accepted as one of important subjects for design of better lightning protection system for power lines, especially for distribution system with lower system voltage rather than transmission line syst
Publikováno v:
2019 11th Asia-Pacific International Conference on Lightning (APL).
The analysis of dynamic behavior of the transmission tower-footing base structure subjected to lightning currents is very important for the insulation design of transmission lines. We conducted a model experiment to propose a technique to investigate
Publikováno v:
The Transactions of The Korean Institute of Electrical Engineers. 62:905-912
Power system fault analysis is commonly based on well-known symmetrical component method, which describes power system elements by positive, negative and zero sequence impedance. In case of balanced fault, such as three phase short circuit, transmiss
Publikováno v:
Journal of the Korean Institute of Electrical and Electronic Material Engineers. 23:61-64
Footing Resistance of a 154 kV transmission towers in korea is commonly required to be less than 15 ohm to avoid lightning back-flashover accident. The periodic measurement of Footing Resistance is important to verify that the grounding performance o
Publikováno v:
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 23:26-32
Grounding insures a reference potential point for electric devices and also provides a law resistance path for fault or transient currents in the earth. The ground impedance as a function of frequency is necessary for determining its performance sinc
Publikováno v:
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers. 23:36-40
Concrete poles(CP) are popular supports for distribution lines. Various types of grounding electrode, such as copper-clad rods, have been used to maintain CP`s ground resistance under the required value. The buried part of CP can also have structural