전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제61권2호
  • /
  • Pages.251-256
  • /
  • 2012
  • /
  • 1975-8359(pISSN)
  • /
  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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2개 센서를 이용한 부분방전 위치추정 기법 연구

A Study on the Partial Discharge Location Method using 2 Sensors

  • 김정태 (대진대 공대 전기공학과) ;
  • 김동욱 (대진대 공대 전기공학과)
  • 투고 : 2011.11.30
  • 심사 : 2011.12.16
  • 발행 : 2012.02.01
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초록

This study deals with the location of partial discharges(PDs) for power cables and GIS using 2 PD sensors and long coaxial signal cables. Throughout the experiments by use of simulated PD pulses and corona discharges in the power cable system, it is found out that the impedance matching between the coaxial signal cable and the measuring equipment should be done for good S/N ratio and the on-site measurement using more than 100m-long coaxial signal cable is possible. In addition, new PD location algorithm with the polarities of PD pulses and the arrival time difference between two pulses was proposed and was proved through the partial discharge experiments for the cable joint defect and artificial void defect.

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참고문헌

  1. B. Quak, E. Gulski, J.J. Smit, P.P. Seitz, "Numeric data processing to enable PD site location by time -domain reflectometry in distribution power cable systems , 14th International Symposium on High Voltage Engineering, G-008, China, 2005
  2. K. Rethmeier, C. Balkon, A. Obralic, W. Kalkner and R. Plath, "PD Localization by Time Domain Reflectometry with PD Decoupling at Joints of High Voltage Cable Systems - Advantages and Limits", 13th International Symposium on High Voltage Engineering, T7-553, The Netherlands, 2003
  3. C. Herold, T. Leibfried, S. Markalous, I. Quint, "Algorithms for Automated Arrival Time Estimation of Partial Discharge Signals in Power Cables", 15th International Symposium on High Voltage Engineering, T7-332, Slovenia, 2007
  4. F. Leonard, D. Fournier, B. Cantin, "On-Line Location of Partial Discharges in an Electrical Accessory of an Underground Power Distribution Network", JICABLE '07, A-7-2, France, 2007
  5. F. Steennis, P. Van Der Wielen, B. Kaptein, D. Harmsen, M. Kruithof, A. Postma, "Permanent On-Line Monitoring of MV Power Cables based on Partial Discharge Detection and Localization - An Update", JICABLE '07, A-4-1, France, 2007