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http://dx.doi.org/10.9714/psac.2021.23.4.025

Measurement of magnetization loss according to the winding pitch of CORC®  

Han, Jinwoo (Korea Polytechnic University)
Choi, Kyeongdal (Korea Polytechnic University)
Kim, Woo-Seok (Korea Polytechnic University)
Lee, Ji-Kwang (Woosuk University)
Publication Information
Progress in Superconductivity and Cryogenics / v.23, no.4, 2021 , pp. 25-29 More about this Journal
Abstract
For the application of HTS wire to AC power equipment, a conductor with high current capacity and low loss is required. CORC®, one of the high-current conductors manufactured using several HTS wires, is made by winding the wires in a spiral on a cylindrical former. Because the magnetization loss of a CORC® conductor depends on the degree of magnetic coupling between the wires constituting the CORC®, it is necessary to know the value of the magnetization loss of the CORC® itself. In order to obtain an accurate loss value, it is necessary to know the effect of the ratio of the winding pitch of the CORC® conductor in the pickup coil region sampling the magnetization loss signal. To confirm this effect, we prepare CORC® samples having various winding pitches, and measure and compare the magnetization losses. In addition, the magnetization loss was measured while rotating the CORC® samples and it was examined whether there was a difference in the magnetization loss according to the rotation.
Keywords
CORC; magnetization loss; AC loss; HTS;
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