By Topic

Development of testing apparatus for 10 kA class AC 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

8 Author(s)
Takeda, K. ; Eng. Res. Assoc. for Supercond. Gen Equipment & Mater., Osaka, Japan ; Chiba, M. ; Fukuda, K. ; Sakagami, Y.
more authors

R&D on NbTi and Nb/sub 3/Sn superconductors has been carried out for application to AC power apparatus in the Super-GM project. 5 kA class NbTi stranded cables have already been tested and then the R&D aiming at the final target of 10 kA class conductors is in progress. However there is no testing apparatus which makes it possible to measure over 5 kArms AC quench current (Iq) and AC loss in AC magnetic field (50-60 Hz). The testing apparatus was developed under the specifications required for evaluating the AC characteristics of 10 kA class conductors. The AC magnet generating the maximum magnetic field of 1 Tpeak in the bore of 150 mm was manufactured. For the Iq measurement, the AC current is directly applied to the specimen in the field of 0.5 Tpeak (50-60 Hz), 10 kArms AC quench current was obtained for the developed large NbTi conductors. As regards the AC loss measurement, the magnetization method using pick-up coils was adopted and its sensitivity has been improved by reducing unnecessary output signal.

Published in:

Applied Superconductivity, IEEE Transactions on  (Volume:9 ,  Issue: 2 )