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

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Partial Discharge Location Method using 2 Sensors

2개 센서를 이용한 부분방전 위치추정 기법 연구

  • 김정태 (대진대 공대 전기공학과) ;
  • 김동욱 (대진대 공대 전기공학과)
  • Received : 2011.11.30
  • Accepted : 2011.12.16
  • Published : 2012.02.01
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Abstract

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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References

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