A Review of Thermal and Electrical Designs for Dry-type Transformers and Future Perspectives

Hang Xu, Shanika Matharage, Zhongdong Wang, Darron Squire, Henry Syzwala, Mark Fazakarley

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Dry-type transformers are used as alternatives to liquid-immersed transformers in applications with concerns about fire safety and environmental impact. Progress made in the past several decades has resulted in the development of dry-type transformers with voltages up to 145 kV and power levels up to 63 MVA. However, the expansion results in challenges associated with both thermal and electrical designs. This paper provides a critical review of the latest developments in thermal and electrical designs for dry-type transformers. Furthermore, the current technical challenges are summarized and the research opportunities for the next-generation transformers are discussed.
Original languageEnglish
Title of host publication2024 IEEE Electrical Insulation Conference
PublisherIEEE
Publication statusAccepted/In press - 23 Mar 2024

Keywords

  • dry-type transformers
  • thermal design
  • insulation design
  • partial discharge
  • casting

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