Transient thermal variation in stator winding of nuclear power turbo-generator with the inner sudden water brake

Transient thermal variation in stator winding of nuclear power turbo-generator with the inner sudden water brake

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
IET Science, Measurement & Technology — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

For nuclear power turbo-generators, the transient thermal variation of its winding and its insulation is one of the important performance indices. For a long time, there have been some occasional accidents at nuclear power stations such as hydrogen and fuel rod leakage. These accidents affect the economy and the safety of people. In this study, a transient temperature variation mechanism of stator winding strands and insulation with a stator water brake has been researched. On account of the stator slot being an open structure, the resistance and reactance are different along the radial direction of the slot. It results in the heat source being different for different strands in the stator slot. The resistance enhancement coefficient of the stator strands is calculated based on the analysis of the eddy-current of magnetic field. A transient fluid-thermal coupled model of a 1000 MW nuclear power turbo-generator stator is established regarding the resistance enhancement coefficient. Calculation results of the insulation temperature are compared with the test data of the turbo-generator that is used at a nuclear power plant.


    1. 1)
      • 1. Shiyuan, C.: ‘Network analyses of ventilation system for large hydrogenerator’. Proc. Fifth ICEMS, 2001, no. 1, pp. 137140.
    2. 2)
    3. 3)
    4. 4)
    5. 5)
    6. 6)
      • 6. Mejuto, C., Mueller, M., Shanel, M., et al: ‘Thermal modelling investigation of heat paths due to iron losses in synchronous machines’. Proc. IET Power Electronics, Machines and Drives Conf., 2008, pp. 225229.
    7. 7)
    8. 8)
    9. 9)
    10. 10)
    11. 11)
    12. 12)
    13. 13)
    14. 14)
    15. 15)
    16. 16)
    17. 17)
    18. 18)
    19. 19)
    20. 20)
    21. 21)
      • 21. Shukuan, Z., Weili, L., Jinyang, L., et al: ‘Research on flower rule and thermal dissipation between the rotor poles of a fully air-cooled hydrogenerator’, IEEE Trans. Ind. Electron., 2015, 62, (6), pp. 34303437.
    22. 22)
      • 22. Versteeg, H.K., Malalasekera, W.: ‘An introduction to computational fluid dynamics: ‘the finite volume method’ (Prentice Hall, Upper Saddle River, NJ, USA, 2007), pp. 7278.

Related content

This is a required field
Please enter a valid email address