Title |
A Study on the Effects of Neutral Current by Unbalanced Load in Two Step Type Pole using KEPCO's Distribution System |
Authors |
박건우(Park, K.W.) ; 서훈철(Seo, H.C.) ; 김철환(Kim, C.H.) ; 정창수(Jung, C.S.) ; 유연표(Yoo, Y.P.) ; 임용훈(Lim, Y.H.) ; 이원정(Lee, W.J.) |
Keywords |
One Step Type Pole ; Two Step type Pole ; Neutral Current ; Vector Analysis ; EMTP |
Abstract |
The one step type pole and two step type pole are used in KEPCO's distribution system. The neutral current increases in three-phase four-wire distribution system due to unbalanced load. Usually, power line and communication line are installed at contiguity by effect of topography in Korea. To this end, the damages such as electrostatic induction, electromagnetic induction and harmonic induction generated by induced voltage and current are occured in power line and communication line. This paper calculates the neutral current in KEPCO's distribution system using EMTP by composing various simulated conditions. Also, these results are verified by vector analysis. |