Alternatives for Assessing the Electrical Integrity of Induction Motors

Jeffery L. Kohler, Joseph Sottile, Frederick C. Trutt

Research output: Contribution to journalArticlepeer-review

83 Scopus citations


The early detection of motor deterioration can increase plant availability and safety, and maintenance personnel often utilize periodic inspection methods such as insulation resistance testing to accomplish this; for very large and crucial motors, expensive and sophisticated monitoring procedures are sometimes implemented, although such applications are rare. This paper presents two alternatives to traditional procedures that are appropriate for detecting stator-winding deterioration in three-phase induction motors of the sizes commonly found in the process industries, based on the results of a recently completed research project. The use of an effective-negative-sequence impedance as a predictor of incipient failure is recommended.

Original languageEnglish
Pages (from-to)1109-1117
Number of pages9
JournalIEEE Transactions on Industry Applications
Issue number5
StatePublished - 1992

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


Dive into the research topics of 'Alternatives for Assessing the Electrical Integrity of Induction Motors'. Together they form a unique fingerprint.

Cite this