HTS Transformer: Construction Details, Test Results, and Noted Failure Mechanisms

Author

Lapthorn, Andrew Craig ; Chew, Irvin ; Enright, Wade G. ; Bodger, Patrick S.

Author_Institution

Electr. & Comput. Eng., Univ. of Canterbury, Christchurch, New Zealand

Volume

26

Issue

1

fYear

2011

Firstpage

394

Lastpage

399

Abstract

An experimental high temperature superconducting transformer has been designed and built using Bi2223 HTS tape. The transformer is unique in that the magnetic circuit is comprised of air and a silicon steel partial core. Electrical tests were performed on the transformer and it was found to be 98.6% efficient at full load. The transformer failed during a full load endurance run and an investigation was carried out to determine the cause of the failure. The cause was believed to be from operating the HTS windings close to critical conditions. Presentation of the failure details will be of use to other researchers who are building HTS transformers.

Keywords

high-temperature superconductors; superconducting transformers; Bi2223 HTS tape; HTS transformer; HTS windings; electrical tests; endurance run; high temperature superconducting transformer; magnetic circuit; High temperature superconductors; Insulation; Power transformer insulation; Transformer cores; Windings; Wire; Fault diagnosis; high-temperature superconductors; partial core; transformers;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2010.2061874

Filename

5571022