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On the Thermal State of the Rotor Winding of a Turbo-Generator with Self-Ventilation from the Sub-Slot Channel1

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Power Technology and Engineering Aims and scope

This article presents details of the mathematical modeling of the gas flow and temperature distribution in the rotor winding of a turbine generator with self-ventilation from sub-slot channels. In particular, the possibilities of adjusting the geometry of the sub-slot channel to minimize the temperature differences of copper conductors within the slot part of the winding are discussed. The data calculated are compared with the ventilation experiment on a rotating physical model of the rotor and the results of full-scale thermal tests of operating turbine generators with air and hydrogen cooling.

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Authors and Affiliations

  1. Peter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia

    D. A. Verkhovtsev & N. V. Korovkin

  2. St. Petersburg, Russia

    E. I. Gurevich

Authors
  1. D. A. Verkhovtsev
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  2. E. I. Gurevich
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  3. N. V. Korovkin
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Corresponding author

Correspondence to E. I. Gurevich.

Additional information

1The study was supported by the Russian Foundation for Basic Research within the scientific project No. 19-38-90031.

Translated from Élektricheskie Stantsii, No. 5, May 2021, pp. 35 – 43. DOI: 10.34831/EP.2021.1078.5.006

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Verkhovtsev, D.A., Gurevich, E.I. & Korovkin, N.V. On the Thermal State of the Rotor Winding of a Turbo-Generator with Self-Ventilation from the Sub-Slot Channel1. Power Technol Eng 55, 576–581 (2021). https://doi.org/10.1007/s10749-021-01400-5

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  • DOI: https://doi.org/10.1007/s10749-021-01400-5

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