Application of the (Hg,Re)-1223 ceramic on superconducting fault current limiter

We have investigated a small resistive SFCL device based on Hg 0.8Re 0.2Ba 2Ca 2Cu 3O 8+ δ , (Hg,Re)-1223, ceramic in order to obtain in the future a SFCL prototype for protecting a low impedance and high current system. Our initial study has shown that a fault current of 1.55 × 10 2 A peak/cm 2 at...

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Veröffentlicht in:Physica. C, Superconductivity Superconductivity, 2007-09, Vol.460 (2), p.1451-1452
Hauptverfasser: Passos, C.A.C., Passamai, J.L., Orlando, M.T.D., Medeiros, E.F., Sampaio, R.V., Oliveira, F.D.C., Fardin, J.F., Simonetti, D.S.L.
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Sprache:eng
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Zusammenfassung:We have investigated a small resistive SFCL device based on Hg 0.8Re 0.2Ba 2Ca 2Cu 3O 8+ δ , (Hg,Re)-1223, ceramic in order to obtain in the future a SFCL prototype for protecting a low impedance and high current system. Our initial study has shown that a fault current of 1.55 × 10 2 A peak/cm 2 at 60 Hz was reduced to 0.82 × 10 2 A peak/cm 2, that is, the device limited the current at 59% without any damage on the (Hg,Re)-1223 superconductor in this range of current. It was observed that the device immediately recovered the initial conditions after that the fault current event is finished without any damage.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2007.04.148