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Analysis of Propagation Characteristics of Lightning Surge according to the Type of Branch Line in Distribution System

배전계통에서 분기선로 형태에 따른 뇌서지 전달특성 해석

  • Seo, Hun-Chul (Department of Electrical Engineering, Yeungnam University) ;
  • Han, Jun (College of Information & Communication Engineering, Sungkyunkwan University) ;
  • Kim, Yun-Gon (College of Information & Communication Engineering, Sungkyunkwan University) ;
  • Kim, Chul-Hwan (College of Information & Communication Engineering, Sungkyunkwan University) ;
  • Choi, Sun-Kyu (KEPRI) ;
  • Lee, Byung-Sung (KEPRI) ;
  • Rhee, Sang-Bong (Department of Electrical Engineering, Yeungnam University)
  • Received : 2012.09.11
  • Accepted : 2013.01.29
  • Published : 2013.10.01

Abstract

This paper analyzes the propagation characteristics of lightning surge according to the type of branch line in distribution system. The types of branch line considered are H-type and PI-type. At each type, the length of main feeder is same, while the number and length of branch line are different. The distribution line is modeled and the various lightning locations are simulated by Electromagnetic Transient Program(EMTP). For each lightning, the various measuring points are selected. Based on the simulation results, the propagation characteristics of lightning surge at each measuring point are analyzed. The analyzed results are verified by travelling wave theory.

Acknowledgement

Supported by : 한국전력공사

References

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