By Topic

Thermal runaway and resistive properties of a Bi2223 pancake coil subjected to overcurrent

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

5 Author(s)
Tanaka, H. ; Nat. Inst. of Adv. Ind. Sci. & Technol., Ibaraki, Japan ; Furuse, M. ; Arai, K. ; Umeda, M.
more authors

Various kinds of superconductivity-based fault current limiters (FCL's) have been studied. One type uses a superconductive reactor or magnet that loses its superconductive properties when subjected to excessive current flow. We examined the characteristics of a Bi2223 double pancake coil subjected to overcurrent. DC or AC overcurrent was passed through the coil cooled by saturated liquid nitrogen, and the resultant temperature difference was measured between the coil surface and the saturated liquid nitrogen. We then theoretically and experimentally investigated the starting conditions of the resultant thermal runaway. Our results confirmed that these conditions are decided by the product of critical heat flux and cooling area, and that the angle of the coil is important if the cooling channels are narrow.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:15 ,  Issue: 2 )