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

Bin Lee Sang, Gerald Kliman, Manoj Shah, Dongwook Kim, Tony Mall, Kutty Nair, Mark Lusted

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

1 Citation (Scopus)

Abstract

A comparison between two inter-laminar stator core insulation failure detection techniques for generators based on low flux core excitation is presented in this paper. The two techniques under consideration are: 1) the iron core probe based method developed recently and 2) the existing air core probe based method. A qualitative comparison of the two techniques is presented along with an experimental comparison on a 120MW generator stator core. The test results are compared in terms of fault detection sensitivity, signal to noise ratio, and ease of interpretation, which are the main requirements for stator core inspection. In addition to the comparison, the performance of the iron core probe technique for machines with short wedge depression depth is presented along with the recent improvements in the algorithm. It is shown that the main requirements for stator core inspection are significantly enhanced with the new iron core probe-based core fault detector.

Original languageEnglish
Title of host publicationSDEMPED 2005 - International Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives
DOIs
Publication statusPublished - 2005
Externally publishedYes
EventInternational Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives, SDEMPED 2005 - Vienna, Austria
Duration: 2005 Sep 72005 Sep 9

Publication series

NameSDEMPED 2005 - International Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives

Other

OtherInternational Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives, SDEMPED 2005
CountryAustria
CityVienna
Period05/9/705/9/9

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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  • Cite this

    Sang, B. L., Kliman, G., Shah, M., Kim, D., Mall, T., Nair, K., & Lusted, M. (2005). Experimental study of inter-laminar core fault detection techniques based on low flux core excitation. In SDEMPED 2005 - International Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives [4662550] (SDEMPED 2005 - International Symposium on Diagnostics of Electric Machines, Power Electronics, and Drives). https://doi.org/10.1109/DEMPED.2005.4662550