Actas de congresos
Design And Test Of Hts Coils For Resistive Fault Current Limiter
Registro en:
Ieee Transactions On Applied Superconductivity. , v. 14, n. 2, p. 863 - 866, 2004.
10518223
10.1109/TASC.2004.830303
2-s2.0-4344574034
Autor
Baldan C.A.
Shigue C.Y.
Pinatti D.G.
Ruppert-Filho E.
Freitas R.C.
Homrich R.P.
Institución
Resumen
This paper presents the design, manufacturing and test results of HTS coils for single-phase resistive current limiters using two different Bi-2223/Ag tapes. Two coils were separately wound on cylindrical G-10 tubes with helical path. One of the coil was wound in a bifilar conductor arrangement aiming at reducing the self-inductance. The maximum flux density is 40 mT on the HTS tape for both coils and the calculated inductance is 5.76 μH for the noninductively wound coil and 28.3 μH for the conventional one. The two coils were individually tested under DC and AC currents. The DC power loss was calculated from the measured voltage-current values product and the AC power loss was determined by the liquid nitrogen mass boil-off measurement. The acquired voltage AC waveforms were analyzed through the separation of distinct contributions due to magnetic flux and to a resistive component in-phase with the current It was observed an inflection point common to the DC and AC power losses curves close to Ic attributed to the AC transition current. 14 2 863 866 Paul, W., Chen, M., Lakner, M., Rhyner, J., Braun, D., Lanz, W., Fault current limiter based on high temperature superconductors-different concepts, test results, simulations, and applications (2001) Physica C, 354, pp. 27-33. , May Homrich, R.P., Filho, E.R., Pinatti, D.G., Baldan, C.A., Shigue, C.Y., Single-phase resistive superconductor electrical current limiter (2002) IEEE Trans. Appl. Supercond., 12 (1), pp. 1386-1389. , March Leghissa, M., Development and characterization of Bi-2223 conductors for HTS transformer applications (2001) IEEE Trans. Appl. Supercond., 11 (1), pp. 2943-2946. , March Software Amperes, Integrated Engineering Software, Winnipeg, MB, 2000Darmann, F., Dou, S., Cook, C., Determination of the AC losses of Bi-2223 HTS coils at 77 K at power frequencies using a mass boil-off calorimetric technique (2003) IEEE Trans. Appl. Supercond., 13 (2), pp. 1-6. , March Rabbers, J.J., Ten Haken, B., Shevchenko, O.A., Ten Kate, H.H.J., An engineering formula to describe the AC loss of BSCCO/Ag tape (2001) IEEE Trans. Appl. Supercond., 11 (1), pp. 2623-2626. , March Gömöry, F., Frolek, L., Souc, J., Laudis, A., Kovac, P., Husek, I., Partitioning of transport AC loss in a superconducting tape into magnetic and resistive components (2001) IEEE Trans. Appl. Supercond., 11 (1), pp. 2967-2970. , March