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Test of ITER conductors in SULTAN: an update

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche, Martin Vogel, Ciro Calzolaio

The ITER Toroidal Field (TF) conductor qualification phase has been carried out by testing short sample prototype conductors in the SULTAN test facility. This phase, started in 2007, has been substantially completed after minor adjustment of the conductor ...

2011

Review of design aspects for high current Nb3Sn conductors

Pierluigi Bruzzone

Cabled conductors based on Nb3Sn technology with operating current in the range of 20 kA and above are mainly restricted to fusion magnets and high field facilities. The experience of last decade has dramatically shown that, opposite to the NbTi conductors ...

2011

Successful performances of the EU-AltTF sample, a large size Nb3Sn cable-in-conduit conductor with rectangular geometry

Pierluigi Bruzzone

One of the design features which yet offers interesting margins for performance optimization of cable-in-conduit conductors (CICCs), is their geometry. For relatively small size Nb3Sn CICCs, operating at high electromagnetic pressure, such as those for the ...

2010

Electromagnetic compatibility of power line communication systems

Ana Vukicevic

The power system has been used for communication purposes for many decades, although it was mainly the power utility companies that used low bit rates for control and monitoring purposes. In the last ten years, however, the deregulation of the power and te ...

EPFL2008

A critical review of coupling loss results for cable-in-conduit conductors

Pierluigi Bruzzone, Boris Stepanov

AC loss curves measured for the same conductors at SULTAN (CRPP) and at University of Twente (UT) in higher and respectively lower frequency range are compared to draw consistent results. From the unified curves, the coupling time constant (n tau) to be us ...

IEEE Institute of Electrical and Electronics Engineers2006

DC and transient current distribution analysis from self-field measurements on ITER PFIS conductor

Boris Stepanov

Current reconstruction in cable-in-conduit conductors (CICC) cables is a crucial issue to determine cables performance in working conditions, and must be performed using inverse problem approaches as direct measurement is not feasible. The current distribu ...

2005

Effect of cyclic loading and conductor layout on contact resistance of full-size ITER PFCI conductors

Pierluigi Bruzzone, Boris Stepanov

An evolution of the contact resistances (R-c) of two full-size ITER (International Thermonuclear Experimental Reactor) cable-in-conduit conductors (CICC) aimed for the Poloidal Field Conductor Insert (PFCI) was studied in the Twente Cryogenic Press. The co ...

IEEE Institute of Electrical and Electronics Engineers2005

Reconstruction of current unbalance in full-size ITER NbTiCICC by self-field measurements

Boris Stepanov

Methods have been developed to study the distribution of the transport current among the strand bundles of cable-in-conduit conductors (CICC) by using self-field measurements with Hall probe arrays. The unbalance in the transport current is mainly caused b ...

IEEE Institute of Electrical and Electronics Engineers2005

DC performance, AC loss and transient field stability of five medium size NbTi cable-in-conduit conductors with parametric variations

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche, Martin Vogel

Five medium size NbTi cable-in-conduit conductors with parametric variations in the cable layout were fabricated of three different strands to investigate their DC performance, AC loss behaviour and transient stability by means of the SULTAN facility. A co ...

2005

DC performances of ITER NbTi conductors: Models vs. measurements

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche

Within the R&D program on the International Thermonuclear Experimental Reactor (ITER) Poloidal Field (PF) coils, a full size conductor sample was tested in the SULTAN facility (CRPP Villigen, Switzerland). This sample is composed of two straight ITER-like ...

IEEE Institute of Electrical and Electronics Engineers2005

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DC performance, AC loss and transient field stability of five medium size NbTi cable-in-conduit conductors with parametric variations

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche, Martin Vogel

2005

DC performances of ITER NbTi conductors: Models vs. measurements

Pierluigi Bruzzone, Boris Stepanov, Rainer Wesche

IEEE Institute of Electrical and Electronics Engineers2005