TY - JOUR
T1 - Fabrication of 1 kA class oxide superconducting transformer cooled by cryocooler for AC transport measurement
AU - Otabe, E. S.
AU - Yasuda, T.
AU - Matsushita, T.
AU - Iwakuma, M.
AU - Bohno, T.
N1 - Funding Information:
This study was supported by Industrial Technology Research Grant Program in 2000 from the New Energy and Industrial Technology Development Organization (NEDO) of Japan.
PY - 2002/8
Y1 - 2002/8
N2 - An AC current source of 1000 A class for AC transport measurements was designed and fabricated with using an oxide superconducting current transformer. Two cryocoolers were installed for cooling the transformer and a sample holder separately. A parallel conductor composed of six tapes was wound for a secondary winding and a transposition was performed to make the current distribution uniform in the parallel conductor. Temperatures of the transformer and the sample holder were controlled in the range of 35-50 and 25-77 K, respectively. The peak current in the secondary winding was over 1000 A in the frequency range of 1-75 Hz, when the primary peak current was 14 A.
AB - An AC current source of 1000 A class for AC transport measurements was designed and fabricated with using an oxide superconducting current transformer. Two cryocoolers were installed for cooling the transformer and a sample holder separately. A parallel conductor composed of six tapes was wound for a secondary winding and a transposition was performed to make the current distribution uniform in the parallel conductor. Temperatures of the transformer and the sample holder were controlled in the range of 35-50 and 25-77 K, respectively. The peak current in the secondary winding was over 1000 A in the frequency range of 1-75 Hz, when the primary peak current was 14 A.
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U2 - 10.1016/S0921-4534(02)01107-3
DO - 10.1016/S0921-4534(02)01107-3
M3 - Article
AN - SCOPUS:18744428421
SN - 0921-4534
VL - 372-376
SP - 1711
EP - 1714
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
IS - PART 3
ER -