Experimental study of inter-laminar core fault detection techniques based on low flux core excitation

IEEE Transactions on Energy Conversion

Volumn 21, Issue 1, 2006, Pages 85-94

  Lee, Sang Bin ^a   Kliman, Gerald B ^b   Shah, Manoj R ^c   Kim, Dongwook ^d   Mall, W Tony ^e   Nair, N Kutty ^e   Lusted, R Mark ^e  

^a Korea University   (South Korea)

^b RENSSELAER POLYTECHNIC INSTITUTE   (United States)

^c GE GLOBAL RESEARCH   (United States)

^d Hyundai Heavy Industries   (South Korea)

^e GE ENERGY   (United States)

Author keywords

AC machines; Inter laminar insulation failure; Regular maintenance; Stator core fault; Stator core inspection

Indexed keywords

ALGORITHMS; ELECTRIC EXCITATION; INSULATION; SIGNAL TO NOISE RATIO; STATORS;

INTER-LAMINAR CORE FAULT DETECTION TECHNIQUES; INTER-LAMINAR INSULATION FAILURE; LOW FLUX CORE EXCITATION; REGULAR MAINTENANCE; STATOR CORE FAULT; STATOR CORE INSPECTION;

AC GENERATORS;

EID: 33244460550     PISSN: 08858969     EISSN: None     Source Type: Journal    
DOI: 10.1109/TEC.2005.853759     Document Type: Article

References (19)

1. Pacificorp Hunter I Outage Filing [Online]. Available: http:// www.commerce.state.ut.us/ccs/HunterIFiling.htm
2. G. Klempner, "Ontario hydro experience with failures in large generators due to loose stator iron core," in Proc. EPRI Generator Predictive Maintenance and Refurbishment Conf., Dec. 1998.
3. J. R. Reynolds and T. W. Butler, "A comparative analysis of three core failures," in Proc. EPRI Int. Workshop on Maintaining Integrity of Generator Cores, Nov. 2001.
4. L. Carratala and G. Klempner, "Failure of the Trillo nuclear power plant, generator stator core," in Proc. EPRI Int. Workshop on Maintaining Integrity of Generator Cores, Nov. 2001.
5. J. Michalec, "Successful stator core repair 780 MVA generator," Proc. EPRI Int. Workshop on Maintaining Integrity of Generator Cores, Nov. 2001.
6. P. O'Donnell, "Report of large motor reliability survey of industrial and commercial installations: Part I and II," IEEE Trans. Ind. Appl., vol. 21, no. 4, pp. 853-872, 1985.
7. H. O. Seinsch, "Monitoring and Diagnose elektrischer Maschinen und Antriebe," Allianz Schadensstatistik an HS Motoren 1996-1999 in VDE Workshop, Jun. 2001.
8. IEEE Guide for Insulation Maintenance of Large Alternating-Current Rotating Machinery (10 000 kVA and Larger), ANSI/IEEE Standard. 56-1977, Mar. 1977.
9. IEEE Guide for Insulation Maintenance for Rotating Electric Machinery (5 HP to Less Than 10 000 HP), IEEE Standard. 432-1992, Sep. 1992.
10. R. H. Engelmann and W. H. Middendorf in Handbook of Electric Motors. New York: Marcel Dekker, 1994.
11. G. C. Stone, E. A. Boulter, I. Culbert, and H. Dhirani, Electrical Insulation for Rotating Machines. New York, NY: IEEE Press, 2004.
12. J. Sutton, "El-CID - An easier way to test stator cores," Elect. Rev., vol. 207, no. 1, pp. 33-37, Jul. 1980.
13. J. Sutton and B. F. Chapman, "Electromagnetic detection of damaged regions in laminated iron cores," Proc. Int. Conf. Electrical Machines - Design and Applications, no. 213, pp. 119-122, 1982.
14. C. Rickson, "Electrical machine core imperfection detection," Proc. Inst. Elect. Eng., pt. B, vol. 133, no. 3, pp. 190-195, May 1986.
15. G. K. Ridley, EL CID - Application and Analysis, Adwel Int. Ltd., U.K., 2000.
16. Z. Posedel, "Inspection of stator cores in large machines with a low yoke induction method-measurement and analysis of interlamination short-circuits," IEEE Trans. Energy Conversion, vol. 16, no. 1, pp. 81-86, Mar. 2001.
17. V. B. Berezhansky, L. I. Chubraeva, and G. V. Rostik, "Experience with modified iron fault control technique for the stator cores of electrical machines," in Proc. Stockholm Power Tech Int. Symp. Electric Power Engineering, vol. 3, 1995, pp. 108-112.
18. S. B. Lee, G. B. Kliman, M. R. Shah, N. K. Nair, and R. M. Lusted, "An iron core probe based inter-laminar core fault detection technique for generator stator cores," IEEE Trans. Energy Convers., vol. 20, no. 2, pp. 344-351, Jun. 2005.
19. S. B. Lee, G. B. Kliman, M. R. Shah, W. T. Mall, N. K. Nair, and R. M. Lusted, "An advanced technique for detecting inter-laminar stator core faults in large electric machines," in Proc. IEEE IAS Annu. Meeting, vol. 2, 2003, pp. 1374-1381.