AC loss characterization of single pancake BSCCO coils by measured different methods

SAFRAN S., Souc J., Gomory F.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, cilt.541, ss.45-49, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 541
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1016/j.physc.2017.08.004
  • Dergi Adı: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.45-49
  • Anahtar Kelimeler: AC loss, Pancake coil, BSCCO, Experimental study, COATED CONDUCTOR COILS
  • Ankara Üniversitesi Adresli: Evet

Özet

Electromagnetic measurements for AC losses of single pancake BSCCO coils and tapes have been performed experimentally as a function of reinforcement material, number of turns and AC current. Two coils have been prepared with using isolated Bi2Sr2Ca2Cu3O10/Ag (BSCCO) tape produced by Sumitomo Electric Industries, Ltd. For the experimental tests, the pancake coil is immersed in liquid nitrogen bath. The critical current I-cp is determined. The transport AC loss has been measured by electromagnetic and calorimetric method using a lock-in amplifier. In electromagnetic method, the signal from 1) whole coil voltage, 2) the pair of taps placed in the 1/3 outer turn and 3) 3 cm long contactless loop placed in the 1/3 outer turn making a C shaped loop, are measured. Increasing the number of turns in the pancake increases the dissipation per unit length of the tape. (C) 2017 Elsevier B.V. All rights reserved.