High Temperature Superconducting AC Losses - BSCCO and ReBCO Tapes
Experimental tests were carried out to measure the AC losses of BSCCO tapes with 4mm wide. The used experimental setup comprises a sinusoidal voltage source (Keysight AC6804B) connected to a step-down transformer, with the secondary connected to the HTS tapes. Voltage taps are soldered to both sides of the HTS tape sample. A cancellation coil is employed to align the tape’s voltage and current, thereby reducing errors in computing the active power. The voltage signal undergoes an 80-fold amplification stage in the Low Noise Amplifier (LNA) before being visualized and acquired by an oscilloscope. For each current step, a 5-period signal is acquired 20 times, from which an average 5-period signal is derived. Each measurement step is repeated five times to mitigate noise. From these tests, AC voltage-current (V-I) characteristics and total AC losses are experimentally determined. In addition to the cancelation coil method, the voltage was also measured using a Lock-in amplifier, using the current as a phase reference.
In these database it is provided the voltage-time and current-time curves and AC losses measurements. In addition, an Excel file with AC losses analytical models is provided to help characterise the HTS tapes' parameters under AC regime.
Information from the Manufacturer of the HTS 1st gen. BSCCO and 2nd gen. ReBCO Tapes:
Characteristic | BSCCO (1st gen.) | ReBCO (2nd gen.) | ReBCO (2nd gen.) |
Ic (77K) @ dc | 160-180A | 155-175A | 83-85A |
n (77K) @ dc | 10-13 | 30-35 | 29-30 |
B0 (77K) @ dc | 0.1 - 0.14 T | 0.1 - 0.14 T | 0.1 - 0.14 T |
Geometry | Elliptical | Thin strip | Thin strip |
wsc (wsc = 2a) | 3.5 mm | 4.01 mm | 2.04 mm |
hsc (hsc = 2b) | 0.12 mm | 0.095 mm | 0.095 mm |
lsc (length) | 120 mm | 100 mm | 95 mm |
Manufacturer | Nexans SuperConductors BSCCO-2212 C01-207 | SuperPower SCS4050-AP | SuperPower SCS2050-AP |
To use this data, please cite:
https://iopscience.iop.org/article/10.1088/1361-6668/ad1f7c/meta
