Electrical Testing for Detection and Classification of Open Damper Bar and Shorted Field Winding Failures in Wound Field Synchronous Motors

Muhammad Faizan Shaikh, Jongsan Park, Yonghyun Park, Sang Bin Lee, Jose A. Antonino-Daviu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Broken damper bars and shorted field winding turns degrade the starting and running performance of industrial wound field synchronous motors (WFSMs), and can lead to a forced outage of the motor and driven process. Testing of WFSM rotor windings mainly relies on offline tests, which cannot be performed frequently and are known to lack reliability. Shorted turns in the field winding can be detected online from the airgap flux measurement, but require a sensor to be installed on the stator bore. In this article, new test methods for detecting and classifying damper and field winding faults based on electrical signals are proposed. The proposed methods can provide remote testing at motor standstill and during the motor starting transient without disassembling the motor. Test results on a 30 kW, salient pole WFSM show that both test methods can provide reliable detection and classification of damper and field winding faults.

Original languageEnglish
Pages (from-to)4532-4541
Number of pages10
JournalIEEE Transactions on Industry Applications
Volume58
Issue number4
DOIs
Publication statusPublished - 2022

Bibliographical note

Publisher Copyright:
© 1972-2012 IEEE.

Keywords

  • Condition monitoring
  • damper bar
  • fault diagnostics
  • field winding
  • motor testing
  • spectral analysis
  • wound field synchronous motor

ASJC Scopus subject areas

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

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