Evaluation of the detectability of broken rotor bars for double squirrel cage rotor induction motors

Jongbin Park, Byunghwan Kim, Jinkyu Yang, Sang Bin Lee, Ernesto J. Wiedenbrug, Mike Teska, Seungoh Han

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

40 Citations (Scopus)

Abstract

Double squirrel cage rotor design is employed in induction motor applications that require high starting torque and high efficiency operation. The outer cage of double cage rotors is vulnerable to fatigue failure since it must withstand the large thermal/mechanical stresses experienced during a loaded startup due to the high starting current and long acceleration time. However, there are only a few publications that investigate broken bar detection for double cage induction motors. In this paper, the detectability of broken outer cage bars in double cage motors for the most commonly used rotor bar test methods is evaluated. A finite element and experimental study show that the sensitivity of on-line MCSA is significantly decreased, whereas that of off-line standstill tests is not influenced for broken outer cage bars. This suggests that one should be aware of the insensitivity of MCSA for double cage rotors, and there is a need for development of new on-line monitoring methods.

Original languageEnglish
Title of host publication2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings
Pages2493-2500
Number of pages8
DOIs
Publication statusPublished - 2010
Event2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Atlanta, GA, United States
Duration: 2010 Sep 122010 Sep 16

Publication series

Name2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings

Other

Other2010 2nd IEEE Energy Conversion Congress and Exposition, ECCE 2010
CountryUnited States
CityAtlanta, GA
Period10/9/1210/9/16

Keywords

  • AC machine
  • Broken rotor bar
  • Condition monitoring
  • Diagnostics
  • Double cage induction motor
  • Off-line testing
  • Spectrum analysis
  • Squirrel-cage rotor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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  • Cite this

    Park, J., Kim, B., Yang, J., Lee, S. B., Wiedenbrug, E. J., Teska, M., & Han, S. (2010). Evaluation of the detectability of broken rotor bars for double squirrel cage rotor induction motors. In 2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings (pp. 2493-2500). [5617950] (2010 IEEE Energy Conversion Congress and Exposition, ECCE 2010 - Proceedings). https://doi.org/10.1109/ECCE.2010.5617950