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The index n of the voltage-current curve, in the characterization and specification of technical superconductors

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Design and Strand Tests of a Fusion Cable Composed of Coated Conductor Tapes

Pierluigi Bruzzone, Davide Uglietti, Rainer Wesche

The design of a flat cable suitable for future fusion reactors has been carried out. The cable consists of twisted round strands, which are composed of tapes stacked between copper profiles. According to calculations, the strand twist pitch and the cable t ...

2014

In the framework of the JT-60SA project, aiming at upgrading the present JT-60U tokamak, Europe as part of its in-kind contribution within the Broader Approach agreement, will provide the full Toroidal Field (TF) magnet system. For this purpose, Fusion for ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Irreversible Degradation in Nb3Sn Cable in Conduit Conductors

Ciro Calzolaio

One of the biggest goals for the international thermonuclear experimental reactor (ITER) is the steady state operation. For this reason all its coils will be superconducting and Nb3Sn material is used for both the toroidal field (TF) and the central soleno ...

EPFL2013

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The ITER feeders are the components that connect the ITER magnet systems located inside the main cryostat to the cryogenics, power-supply and control system interfaces outside the cryostat. The feeder busbars rely on the Cable-In-Conduit Conductor (CICC) d ...

Elsevier Science Sa2013

Preliminary Performance Test Results of First CICC From Korea Destined for an ITER TF Magnet

Pierluigi Bruzzone, Boris Stepanov, Kyungjin Kim

The Republic of Korea is participating in the ITER project to construct and operate the ITER tokamak for the purpose of demonstrating the feasibility of fusion power. ITER Korea, the implementing agency for the Republic of Korea that is procuring items for ...

Ieee-Inst Electrical Electronics Engineers Inc2013

High current superconductors for DEMO

Pierluigi Bruzzone, Kamil Sedlák, Boris Stepanov

In the assumption that DEMO will be an inductively driven tokamak, the number of load cycles will be in the range of several hundred thousands. The requirements for a new generation of Nb3Sn based high current conductors for DEMO are drafted starting from ...

Elsevier Science Sa2013

Heat transfer through cable insulation of Nb-Ti superconducting magnets operating in He II

Pier Paolo Granieri

The operation of Nb–Ti superconducting magnets in He II relies on superfluidity to overcome the severe thermal barrier represented by the cable electrical insulation. In wrapped cable insulations, like those used for the main magnets of the Large Hadron Co ...

Elsevier2013

The ITER central solenoid (CS) must be capable of driving inductively 30 000 15 MA plasma pulses with a burn duration of 400 s. This implies that during the lifetime of the machine, the CS, comprised of six independently powered coil modules, will have to ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Results of the TFEU6 Sample Tested in SULTAN

Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March

This paper presents the results of the latest European Conductor Performance Qualification Sample for the ITER toroidal field coils. The standard qualification test was performed in the SULTAN facility at CRPP. The sample consisted of two 3.5-m lengths of ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Test Results of Three Poloidal Field Superconducting Samples in SULTAN

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche

Superconductors for the ITER Poloidal Field Coils are large cable-in-conduit conductors (CICC) made of NbTi strands encased in a round-in-square stainless steel jacket. Three prototype conductor sections for poloidal field coils PF1/6, PF2/3/4 and PF5 have ...

IEEE-Inst Electrical Electronics Engineers Inc2012