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Analysis of the Temperature Influence on Insulation Characteristics in High Voltage Motor Stator Windings

고압전동기 고정자 권선의 온도변화에 따른 절연특성 분석

  • Kong, Tae-Sik (Korea Electric Power Corporation (KEPCO) Research Institute) ;
  • Ju, Young-Ho (Korea Electric Power Corporation (KEPCO) Research Institute) ;
  • Kim, Hee-Dong (Korea Electric Power Corporation (KEPCO) Research Institute) ;
  • Park, Tae-Sung (Korea Electric Power Corporation (KEPCO) Research Institute)
  • 공태식 (한국전력공사 전력연구원 기술전문센터) ;
  • 주영호 (한국전력공사 전력연구원 기술전문센터) ;
  • 김희동 (한국전력공사 전력연구원 기술전문센터) ;
  • 박태성 (한국전력공사 전력연구원 기술전문센터)
  • Received : 2012.07.25
  • Accepted : 2012.09.20
  • Published : 2012.10.01

Abstract

A variety of diagnostic tests are widely applied in the field in industry to evaluate the condition of high voltage (HV) motor stator insulation. In this paper, the influence of temperature on the stator insulation diagnostic tests such as the insulation resistance, AC current, dissipation factor, and partial discharge measurements are studied and reported. The tests are performed with the HV motor stator winding temperature set between $40^{\circ}C$ to $80^{\circ}C$ in $10^{\circ}C$ intervals. It is shown that the AC current, dissipation factor, and partial discharge magnitude steadily increase with temperature, which suggests that temperature must be taken into account in the interpretation of the test results.

Acknowledgement

Supported by : 한국에너지기술평가원 (KETEP)

References

  1. Motor Reliability Working Group, IEEE IAS Trans., A21, 863 (1985).
  2. H. D. Kim, J. KIEEME, 15, 119 (2002).
  3. IEEE Std. 95-1977, 13 (1977).
  4. ANSI/IEEE Std 56-1997, 12 (1997).
  5. H. D. Kim, T. S. Kong, Y. H. Ju, and B. H. Kim, J. Electri. Eng. & Tech., 6, 384 (2011). https://doi.org/10.5370/JEET.2011.6.2.384
  6. IEEE Std 43-2000, 10 (2000).
  7. EPRI Research Project 2814-35 Final Report, 4 (1992).