Transformers Magazine, Vol. 3 No. 2, 2016.
Original scientific paper
Superconducting transformers – Part I
Mike Staines
; Victoria University, Wellington, New Zealand
Mohinder Pannu
; Wilson Transformer, Australia
Neil Glasson
; Callaghan Innovation, New Zealand
Nathan Allpress
; Callaghan Innovation, New Zealand
Abstract
Superconducting transformers using high current density High Temperature Superconductor (HTS) wire cooled with liquid nitrogen can be lighter and more efficient than conventional power transformers. This paper describes the 1 MVA 11/0.415 kV HTS transformer developed by a New Zealand - Australian team, featuring HTS Roebel cable in the 1.4 kA-rated low voltage winding. Comparison of HTS and conventional transformer designs at 40 MVA rating shows lower lifetime cost of losses makes HTS base-load transformers cost-competitive in higher energy cost markets. Power density - more MVA in a restricted footprint - could be a decisive advantage in mobile applications.
Keywords
superconductor; Roebel cable; cryogenic
Hrčak ID:
167662
URI
Publication date:
8.4.2016.
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