Title :
Calorimetric measurements of losses in HTS cables
Author :
Traeholt, Chresten ; Olsen, Søren Krüger ; Rasmussen, C. ; Veje, Erling ; Tønnesen, Ole
Author_Institution :
Dept. of Electr. Power Eng., Tech. Univ. Denmark, Lyngby, Denmark
fDate :
3/1/2001 12:00:00 AM
Abstract :
A calorimetric test rig is used to investigate various loss components in a 10 m long superconducting cable model. A calorimetric technique, based on thermocouple measurements, is used to measure the losses of the 10 m long superconducting cable model. The current dependent losses are also measured electrically and compared with the losses obtained with the calorimetric method. The results obtained by the two methods are consistent. Based on an I2 (current) fitting procedure, the loss, caused by the eddy current generated in the stainless steel cryostat housing, and the hysteresis loss generated in the conductor can be separated. From this result, it appears that the two contributions are roughly equal in size
Keywords :
calorimetry; eddy current losses; heat losses; high-temperature superconductors; hysteresis; power cable testing; superconducting cables; temperature measurement; thermal analysis; thermocouples; 10 m; HTS cables; calorimetric losses measurements; calorimetric test rig; current fitting procedure; eddy current loss; hysteresis loss; superconducting cable model; thermocouple measurements; Conductors; Current measurement; Eddy currents; Electric variables measurement; High temperature superconductors; Hysteresis; Loss measurement; Steel; Superconducting cables; Testing;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
