NDLI: Design and operational testing of a 5/10-MVA HTS utility power transformer

Content Provider	IEEE Xplore Digital Library
Author	Weber, C.S. Reis, C.T. Hazelton, D.W. Schwenterly, S.W. Cole, M.J. Demko, J.A. Pleva, E.F. Mehta, S. Golner, T. Aversa, N.
Copyright Year	2002
Abstract	High temperature superconducting transformers offer many economic, operational, and environmental benefits over conventional power transformers for utility applications. To establish the technical and economic feasibility and benefits of HTS transformers of medium-to-large (>10 MVA) ratings, a team that includes Waukesha Electric Systems (transformer manufacturer), SuperPower Inc. (HTS systems manufacturer), Oak Ridge National Lab, and Energy East has designed, built and tested a prototype 5/10 MVA superconducting transformer. The transformer's 4.5-ton cold mass has been successfully maintained at temperatures of 30-50 K for several months, without full-time operator attendance. The transformer has reached its full three-phase operating current, and has been tested to 1.4 times operating current (limited by available power supplies) in single-phase mode. It is now undergoing long-term tests at various current levels, high-voltage tests, and transient overcurrent tests at the Waukesha site. This paper summarizes the manufacturing, cooldown, and the test results achieved to date.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	2210
Ending Page	2213
Page Count	4
File Size	1302748
File Format	PDF
ISSN	10518223
Volume Number	15
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing High temperature superconductors Power transformers Assembly Manufacturing Cooling Prototypes Superconducting devices Power system economics Power generation economics superconducting transformers High-temperature superconductors superconducting device testing
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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