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

作者：Safran Serap^*; Souc Jano; Gomory Fedor

来源：Physica C-Superconductivity and Its Applications, 2017, 541: 45-49.

DOI：10.1016/j.physc.2017.08.004

• AC loss
• Pancake coil
• BSCCO
• Experimental study

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.

• 出版日期2017-10
• 单位中国科学院电工研究所