Cart (Loading....) | Create Account
Close category search window
 

Transformers-a successful application of high temperature superconductors

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
McConnell, B.W. ; Oak Ridge Nat. Lab., TN, USA

With the exception of core steel and improvements in insulation, power transformers have changed little in the last fifty years. In general, modern power transformers larger than 10 MVA have full load efficiencies exceeding 99% and are routinely subjected to a form of life-cycle cost evaluation as a part of the purchase process. However, resistive losses in the windings constitute a significant proportion of losses at full load and the desire to further economically reduce these losses using superconducting windings has been an elusive goal for greater than a quarter century. Using high temperature superconducting (HTS) windings this goal is now within reach both technically and economically. Major HTS transformer projects are underway in Europe, Japan and the United States with all projects reporting success in their initial phases. With the desire for improved efficiency and lower losses within technical reach, additional benefits such as reduced size and weight, improved fire safety, overload without loss of transformer life and improved system dynamics through lower impedance and controlled fault current levels have also been identified. These additional benefits may well prove to be significantly more important to the applications of HTS transformers than improved efficiency through loss reduction in the windings. This paper summarizes the status of current HTS transformer projects and the remaining economic and technical challenges that must be met.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:10 ,  Issue: 1 )

Date of Publication:

March 2000

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.