Advanced motor monitoring and diagnostics

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

Research output: Contribution to conferencePaperpeer-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 life time 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: 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)
Number of pages9
StatePublished - 2014
Externally publishedYes
Event2014 67th Annual Conference for Protective Relay Engineers, CPRE 2014 - College Station, TX, United States
Duration: Mar 31 2014Apr 1 2014


Other2014 67th Annual Conference for Protective Relay Engineers, CPRE 2014
Country/TerritoryUnited States
CityCollege Station, TX


  • Motor diagnostics
  • Rotor bar fault
  • Stator inter-turn fault

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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