American Journal of Electrical Power and Energy Systems

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Analysis of Generator Stator Remaining Breakdown Voltage for Power Plant

Received: 22 July 2016    Accepted: 01 August 2016    Published: 31 August 2016
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Abstract

The reliability of stator windings is very important for stable operation of generators, while they are under thermal, mechanical, environmental, and electrical stresses over years of operation. Utility companies are very interested in the remaining breakdown voltage of generators and utilize the corresponding data for maintenance or replacement of generators. In most cases the remaining breakdown voltage is measured by performing a non-destructive dielectric strength test. In this paper, the remaining breakdown voltage of a generator is predicted using statistical methods by comparison with actual measured data, considering the cooling method, maker, and years of use of generators, as a means to supplement the existing methods. This method can be used to minimize the errors that may occur when only the dielectric strength test is used.

DOI 10.11648/j.epes.20160503.11
Published in American Journal of Electrical Power and Energy Systems (Volume 5, Issue 3, May 2016)
Page(s) 22-27
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Generator, Life Expectancy, Statistical Estimation, Stator Winding, Remaining Breakdown Voltage, Insulation Test, AC Current, Partial Discharge

References
[1] Tae-Sik Kong, Hee-Dong Kim, Tae-Sung Park, Kyeong-Yeol Kim, Ho-Yol Kim, "Analysis of Partial Discharge Patterns for Generator Stator Windings", American Journal of Electrical Power and Energy Systems Volume 4, Issue 2, March 2015, Pages: 17-22.
[2] G. C. Stone, E. A. Boulter, I. Culbert and H. Dhirani, Electrical Insulation for Rotating Machines: Design, Evaluation, Aging, Testing, and Repair, Wiley-IEEE Press, 2003.
[3] G. C. Stone and I. Culbert, “Prediction of stator winding remaining life from diagnosis measurement,” IEEE Int’l. Sympos. Electr. Insul. Conf., pp. 1-4, 2010.
[4] G. C. Stone 1993, "The Statistics of Aging Models and Practical Reality," IEEE Transactions on Electrical Insulation, vol. 28, no. 5, pp. 716-728, October 1993.
[5] C. Sumerer, "Statistical Lifetime of Hydro Generators and Failure Analysis," IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 15, no. 3, pp. 678-685, June 2008.
[6] J. K. Nelson and S. Azizi-Ghannad, "Theory and Application of Dynamic Aging for Life Estimation in Machine," IEEE Transactions on Dielectrics and Electrical Insulation, vol. 7, no. 6, pp. 773-782, December 2000.
[7] Tanaka, K. Kojima, H. Onoda, M. Suzuki, K. "Prediction of Residual Breakdown Electrical Field Strength of Epoxy-Mica Paper Insulation Systems for the Stator Winding of Large Generators", IEEE Proceedings of the 19th Electrical Electronics Insulation Conference, pp. 295~299, 1989.
[8] J. E. Timperley and J. R. Michalec, "Estimating the Remaining Service Life Time of Asphaltic-mica Stator Insulation," IEEE Transactions on Energy Conversion, vol. 9, no. 4, pp. 686-693, December 1994.
[9] Hee-dong Kim, Tae-sik Kong, Young-Ho Ju and Byong Han Kim, “Analysis of Insulation Quality in Large Generator Stator Windings”, Journal of Electrical Engineering & Technology Vol. 6, No. 2, pp. 384~390, 2011
[10] Hee-Dong Kim, "Analysis of Insulation Aging Mechanism in Generator Stator Windings", Journal of the KIEEME, Vol. 15, No 2, pp. 119-126, 2002.
Author Information
  • Korea Electric Power Corporation (KEPCO) Research Institute, Dae-jeon, South Korea

  • Korea Electric Power Corporation (KEPCO) Research Institute, Dae-jeon, South Korea

  • Korea Electric Power Corporation (KEPCO) Research Institute, Dae-jeon, South Korea

  • Korea Electric Power Corporation (KEPCO) Research Institute, Dae-jeon, South Korea

  • Korea Electric Power Corporation (KEPCO) Research Institute, Dae-jeon, South Korea

Cite This Article
  • APA Style

    Kyeong-Yeol Kim, Tae-Sik Kong, Hee-Dong Kim, Jae-Heon Park, Tae-Sung Park. (2016). Analysis of Generator Stator Remaining Breakdown Voltage for Power Plant. American Journal of Electrical Power and Energy Systems, 5(3), 22-27. https://doi.org/10.11648/j.epes.20160503.11

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    ACS Style

    Kyeong-Yeol Kim; Tae-Sik Kong; Hee-Dong Kim; Jae-Heon Park; Tae-Sung Park. Analysis of Generator Stator Remaining Breakdown Voltage for Power Plant. Am. J. Electr. Power Energy Syst. 2016, 5(3), 22-27. doi: 10.11648/j.epes.20160503.11

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    AMA Style

    Kyeong-Yeol Kim, Tae-Sik Kong, Hee-Dong Kim, Jae-Heon Park, Tae-Sung Park. Analysis of Generator Stator Remaining Breakdown Voltage for Power Plant. Am J Electr Power Energy Syst. 2016;5(3):22-27. doi: 10.11648/j.epes.20160503.11

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  • @article{10.11648/j.epes.20160503.11,
      author = {Kyeong-Yeol Kim and Tae-Sik Kong and Hee-Dong Kim and Jae-Heon Park and Tae-Sung Park},
      title = {Analysis of Generator Stator Remaining Breakdown Voltage for Power Plant},
      journal = {American Journal of Electrical Power and Energy Systems},
      volume = {5},
      number = {3},
      pages = {22-27},
      doi = {10.11648/j.epes.20160503.11},
      url = {https://doi.org/10.11648/j.epes.20160503.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.epes.20160503.11},
      abstract = {The reliability of stator windings is very important for stable operation of generators, while they are under thermal, mechanical, environmental, and electrical stresses over years of operation. Utility companies are very interested in the remaining breakdown voltage of generators and utilize the corresponding data for maintenance or replacement of generators. In most cases the remaining breakdown voltage is measured by performing a non-destructive dielectric strength test. In this paper, the remaining breakdown voltage of a generator is predicted using statistical methods by comparison with actual measured data, considering the cooling method, maker, and years of use of generators, as a means to supplement the existing methods. This method can be used to minimize the errors that may occur when only the dielectric strength test is used.},
     year = {2016}
    }
    

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    AU  - Kyeong-Yeol Kim
    AU  - Tae-Sik Kong
    AU  - Hee-Dong Kim
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    DO  - 10.11648/j.epes.20160503.11
    T2  - American Journal of Electrical Power and Energy Systems
    JF  - American Journal of Electrical Power and Energy Systems
    JO  - American Journal of Electrical Power and Energy Systems
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    PB  - Science Publishing Group
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    AB  - The reliability of stator windings is very important for stable operation of generators, while they are under thermal, mechanical, environmental, and electrical stresses over years of operation. Utility companies are very interested in the remaining breakdown voltage of generators and utilize the corresponding data for maintenance or replacement of generators. In most cases the remaining breakdown voltage is measured by performing a non-destructive dielectric strength test. In this paper, the remaining breakdown voltage of a generator is predicted using statistical methods by comparison with actual measured data, considering the cooling method, maker, and years of use of generators, as a means to supplement the existing methods. This method can be used to minimize the errors that may occur when only the dielectric strength test is used.
    VL  - 5
    IS  - 3
    ER  - 

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