Multi-stress aging of stator bars with electrical, thermal, and mechanical stresses as simultaneous acceleration factors

IEEE Transactions on Energy Conversion

Volumn 19, Issue 4, 2004, Pages 702-714

  Bartnikas, R ^a   Morin, R ^a  

^a HYDRO QUÉBEC   (Canada)

Author keywords

Accelerated aging; Degradation; Multi stress; Partial discharge; Stator bars; Three phase system

Indexed keywords

AGING OF MATERIALS; COMPUTER SIMULATION; ELECTRIC CURRENTS; MATHEMATICAL MODELS; PARTIAL DISCHARGES; THERMAL STRESS;

ACCELERATED AGING; MULTI-STRESS; STATOR BARS; THREE PHASE SYSTEM;

STATORS;

EID: 10244229102     PISSN: 08858969     EISSN: None     Source Type: Journal    
DOI: 10.1109/TEC.2004.832060     Document Type: Article

References (30)

1. R. Morin, R. Bartnikas, and P. Ménard, "A three phase multi-stress accelerated electrical aging test facility for stator bars," IEEE Trans. Energy Conversion, vol. 15, pp. 149-156, June 2000.
2. W. D. Wilkens, Engineering Dielectrics, R. Bartnikas, Ed. Philadelphia/West Conshohocken: ASTM, 1987, vol. IIB, Measurement Techniques.
3. Recommended Practice for Voltage Endurance Testing of Form Wound Bars and Coils, IEEE Std. 1043.
4. T. W. Dakin, "Electrical insulation deterioration treated as a chemical rate phenomena," AIEE Trans. Part I (Commun. Electron. , vol. 67, pp. 113-122, 1948.
5. E. Brancato, "Insulation aging: An historical and critical review," IEEE Trans. Elect. Insulation, vol. EI-13, pp. 308-317, Aug. 1978.
6. General Procedures for the Determination of Thermal Endurance Properties, Temperature Induces and Thermal Endurance Profiles, IEC Std. 216-1.
7. Thermal Evaluation and Classification of Electrical Insulation, IEC Std. 85.
8. Rotating Electrical Machines - Part I: Rating and Performance, IEC Std. 34.1.
9. Functional Evaluation of Insulation Systems for Rotating Electrical Machines - Part I: General Guidelines, IEC Std. 34.18.1.
10. Recommended Practice for Thermal Cycle Testing of Form-Wound Stator Bars and Coils for Large Generators, IEEE Std. 1310.
11. R. E. Draper and B. J. Moore, "Development of a vertical generator stator bar insulation system for operation at increased stress," in Proc. Electrical Insulation Conf., Chicago, IL, Sept. 22-25, 1997.
12. W. McDermid, "A utility evaluation of a stator bar insulation system operating at increased electric stress," in Proc. Electrical Insulation Conf., Chicago, IL, Sept. 22-25, 1997.
13. L. Simoni, "A general approach to the endurance of electrical insulation under temperature and voltage," IEEE Trans. Elect. Insulation, vol. EI-16, pp. 277-289, Aug. 1981.
14. A. W. W. Cameron and M. Kurtz, "A utility's functional evaluation test for high voltage stator insulation," AIEE Trans. Power App. Syst. pt. III, vol. 78, pp. 178-184, 1959.
15. B. E. Ward, G. C. Stone, and M. Kurtz, "A quality control test for high voltage stator insulation," IEEE Elect. Insulation Mag., vol. 3, pp. 12-17, 1987.
16. G. C. Stone, J. F. Lyles, J.-M. Braun, and C. L. Paul, "A thermal cycling test for generator stator winding insulation," IEEE Trans. Energy Conversion, vol. 6, pp. 707-713, Dec. 1991.
17. W. McDermid and J. C. Bromley, "Relationship between partial discharge pulse-height analysis and subsequent voltage endurance of stator bars and coils," IEEE Trans. Energy Conversion, vol. 7, pp. 721-731, Dec. 1992.
18. B. K. Gupta, M. Kurtz, G. C. Stone, and D. K. Sharma, "Destructive tests on a 542 MW generator winding," in Proc. IEEE Int. Symp. Electrical Insulation, Washington, DC, 1986, IEEE Conf. Rec. 86CH2196-4-DEI, pp. 285-288.
19. B. K. Gupta and I. M. Culbert, "Assessment of insulation condition in rotating machine stators," IEEE Trans. Energy Conversion, vol. 7, pp. 500-508, Sept. 1992.
20. J. F. Lyles, G. C. Stone, and M. Kurtz, "Experience with PDA diagnostic testing on hydraulic generators," IEEE Trans. Energy Conversion, vol. 3, pp. 824-832, Dec. 1988.
21. G. C. Stone, H. G. Sedding, B. A. Lloyd, and B. K. Gupta, "The ability of diagnostic tests to estimate the remaining life of stator insulation," IEEE Trans. Energy Conversion, vol. 3, pp. 833-841, Dec. 1988.
22. "Motor and Generator Insulation Life Estimation,", EPRI Rep. TR-100 185, vol. 1, 1992.
23. T. Tsukui, M. Takamura, and Y. Kako, "Correlations between non-destructive and destructive tests on high-voltage coil insulations for rotating machines," IEEE Trans. Elect. Insulation, vol. EI-16, pp. 118-127, Apr. 1981.
24. H. Yoshida and K. Umemoto, "Insulation diagnosis for rotating machine insulation," IEEE Trans. Elect. Insulation, vol. EI-21, pp. 1021-1025, Dec. 1986.
25. R. Morin, J. P. Novak, R. Bartnikas, and R. Ross, "Analysis of in-service aged stator bars," IEEE Trans. Energy Conversion, vol. 10, pp. 645-654, Dec. 1995.
26. R. Bartnikas and E. J. McMahon, Engineering Dielectrics. Philadelphia, PA: ASTM, 1979, vol. I, Corona Measurement and Interpretation.
27. R. Bartnikas, H. C. Doepken, R. M. Eichhorn, G. W. Rittmann, and W. D. Wilkens, "Accelerated life testing of wet cable specimens at frequencies above 60 Hz," IEEE Trans. Power App. Syst., vol. PAS-99, pp. 1575-1585, July/Aug. 1980.
28. R. Bartnikas and K. D. E. Strivastava, Power and Communication Cables New York: Wiley, 2003.
29. R. J. Densley, R. Bartnikas, and B. Berustein, "Multiple stress aging of solid dielectric dry-cured insulation systems for power transmission cables," IEEE Trans. Power Delivery, vol. 9, pp. 559-571, Jan. 1994.
30. C. Hudon, R. Bartnikas, and M. R. Wertheimer, "Spark to glow discharge transition due to increase surface conductivity on epoxy resin specimens," IEEE Trans. Elect. Insulation, vol. 28, pp. 1-8, Feb. 1993.