Transactions on Electrical and Electronic Materials

  • 제10권5호
  • /
  • Pages.173-176
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  • 2009
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  • 1229-7607(pISSN)
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  • 2092-7592(eISSN)
한국전기전자재료학회 (The Korean Institute of Electrical and Electronic Material Engineers)
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The Design and Experiment of a Planar Patch Sensor for Partial Discharge Diagnostics in 6.6 kV Rotating Machine Stator Windings

  • Yang, Sang-Hyun (Department of Electrical Electronic and Information Engineering, Wonkwang University) ;
  • Park, Noh-Joon (Department of Electrical Electronic and Information Engineering, Wonkwang University) ;
  • Park, Dae-Hee (Department of Electrical Electronic and Information Engineering, Wonkwang University) ;
  • Kim, Hee-Dong (Kepco Korea Electric Power Research Institute) ;
  • Lim, Kwang-Jin (Korea Electronics Technology Institute)
  • 발행 : 2009.10.31
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초록

In the stator windings of a 6.6 kV rotating machine, internal discharges, slot discharges, and surface discharges are mainly caused by internal voids and insulation degradation. If a partial discharge(PD) occurs in an inner-part of the stator windings, it will cause electromagnetic pulses with wide frequency ranges. Discharge sparks and electromagnetic pulses generated from a discharge source, can be detected using various RF resonators like an EM sensor. In order to detect these types of electromagnetic sources, a planar patch sensor was designed and fabricated using a CST-MWS simulation, and PD signals from an artificially defected stator winding were also measured by the sensor proposed in this study. Furthermore, an HFCT was used as a reference sensor and compared with the proposed new planar patch sensor. In the results of the experiment, the planar patch sensor showed a similar performance to the HFCT sensor.

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참고문헌

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