Advanced motor monitoring and diagnostics

Pero Ostojic, Arijit Banerjee, Dhaval C. Patel, Wrichik Basu, Shahid Ali

Research output: Contribution to journalArticlepeer-review


Modern motor protection relays are capable of long-term failure monitoring and diagnostics based on information collected by a powerful data acquisition system. This includes predicting lifetime of motors. This paper presents an advanced algorithm capable of performing such tasks. It is applicable to different types of rotating electric machines depending on their design. The components are as follows: stator turn fault detection and rotor bar fault detection. Detection methods are based on calculating the cross-coupled impedance and analyzing the current frequency signature of the motor. The presentation includes a theoretical background, simulated results, and testing results performed on a particular physical model.

Original languageEnglish (US)
Article number6728624
Pages (from-to)3120-3127
Number of pages8
JournalIEEE Transactions on Industry Applications
Issue number5
StatePublished - Sep 1 2014
Externally publishedYes


  • Motor diagnostics
  • Rotor bar fault
  • Stator interturn fault

ASJC Scopus subject areas

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


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