Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2002.07a
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- Pages.262-264
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- 2002
Introduction on the Contamination Design Standard(Revision Proposal) of 345kV/154kV Transmission System in KEPCO
345kV/154kV 직접접지계 송전설비의 내오손 설계기준(안) 해설
- Shim, E.B. (KEPRI) ;
- Woo, J.W. (KEPRI) ;
- Kwak, J.S. (KEPRI) ;
- Min, B.W. (KEPCO) ;
- Lee, O.B. (KEPCO) ;
- Shin, T.W. (KEPCO) ;
- Park, Y.S. (KEPCO)
- 심응보 (한전 전력연구원) ;
- 우정욱 (한전 전력연구원) ;
- 곽주식 (한전 전력연구원) ;
- 민병욱 (한국전력공사) ;
- 이옥배 (한국전력공사) ;
- 신태우 (한국전력공사) ;
- 박윤석 (한국전력공사)
- Published : 2002.07.10
Abstract
This paper shows the design standard of KEPCO on the contamination design for 345 kV and 154 kV transmission tower. Up to now, because the design standard of KEPCO on the insulation design contains 154 kV transmission system only, we had investigated the 343 kV system for the revision of design standard, with respect to the contamination design, we have used the same design philosophy which were adopted to the 765 kV transmission tower. In order to determine the number of insulator discs, we had investigated the withstand voltage of discs according to the level of ESDD(Equivalent Salt Deposit Density) and kinds of disc types. The TOV(Power Frequency Temporary Overvoltage) were estimated by EMTP(Electromagnetic Transient Program) for both 154 kV and 345 kV transmission system. The overvoltage level was appeared 1.35 p.u. between phase to ground for both 154 kV and 345 kV transmission system, but finally this factor was not applied to the design standard considering current design standard and economic point of view. With regard to classification of contamination area of 345 kV transmission system, we added the clean area which was not specified in the current design practise.
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