Duty based maintenance for on-load transformer tap changers

M A Redfern, W R C Handley

Research output: Contribution to conferencePaper

9 Citations (SciVal)


This paper provides an insight into work involving new maintenance strategies to be used by a power distribution utility for on-load tap changers. Alternative strategies are examined and the advantages of condition based maintenance are outlined. A maintenance decision making algorithm is developed which considers the principal causes of tap changer failures and can advise maintenance personnel when a unit requires visiting. The benefits that this system has provided to the utility are an increase in the average period between maintenance visits and a reduction in possible disturbances to consumers as well as utility costs
Original languageEnglish
Pages1824-1829 vol.3
Publication statusPublished - 2001
EventPower Engineering Society Summer Meeting, 2001. IEEE -
Duration: 1 Jan 2001 → …


ConferencePower Engineering Society Summer Meeting, 2001. IEEE
Period1/01/01 → …


  • maintenance personnel
  • duty based maintenance
  • maintenance engineering
  • power transformers
  • power distribution utility
  • maintenance decision making algorithm
  • condition based maintenance
  • on-load transformer tap changers
  • tap changer failures
  • maintenance visits


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