A New Method for Synchronous Generator Core Quality Evaluation

Gerald B. Kliman, Sang Bin Lee, Manoj R. Shah, Mark Lusted, Kutty Nair

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A technique for detecting the presence and severity of inter-laminar short circuits and estimating the status of core compression (or looseness) in synchronous generators (or large motors) with a single test equipment is proposed in this paper. The core loss measurement obtained from a flux injection probe that injects flux into adjacent teeth over a localized region, is used as an indicator for detecting and distinguishing the two fault conditions. An injection probe system was developed and tested, in the laboratory, using stacks of full size generator laminations with various induced fault conditions. The probe was shown to detect the presence of, as few as, 5 shorted laminations and to approximately gage the degree of core compression (looseness). A unique differential probe was developed and tested to demonstrate the potential to detect two shorted laminations.

Original languageEnglish
Title of host publication2003 IEEE Power Engineering Society General Meeting, Conference Proceedings
Pages1888-1893
Number of pages6
Volume3
Publication statusPublished - 2003 Dec 1
Externally publishedYes
Event2003 IEEE Power Engineering Society General Meeting - Toronto, Ont., Canada
Duration: 2003 Jul 132003 Jul 17

Other

Other2003 IEEE Power Engineering Society General Meeting
CountryCanada
CityToronto, Ont.
Period03/7/1303/7/17

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Keywords

  • AC generators
  • Fault diagnosis
  • Fault location
  • Insulation testing
  • Magnetic cores

ASJC Scopus subject areas

  • Engineering(all)
  • Energy Engineering and Power Technology

Cite this

Kliman, G. B., Lee, S. B., Shah, M. R., Lusted, M., & Nair, K. (2003). A New Method for Synchronous Generator Core Quality Evaluation. In 2003 IEEE Power Engineering Society General Meeting, Conference Proceedings (Vol. 3, pp. 1888-1893)