Recherche

Afficher tous les résultats pour

Accueil

Personne

Rainer Wesche

Cette personne n’est plus à l’EPFL

À propos
Confidentialité
Mentions légales

Graph Chatbot

Publications associées (100)

Collective Flux Jumps observed in the Operation of the EDIPO Magnet

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March, Davide Uglietti, Kamil Sedlák

The tilted head race track coils of the EDIPO test facility are wound with cable-in-conduit conductors made by high current density Nb3Sn strands, Jc = 2400 A/mm2 at 12 T – 4.2 K. Since the commissioning of the coils, frequent voltage spikes were observed ...

IEEE Institute of Electrical and Electronics Engineers2014

Recent Tests of the ITER Conductors and Highlights in Nb3Sn Conductors Behavior

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Kamil Sedlák

The tests of the ITER Toroidal Field (TF) full length conductors (hundreds of meters, production phase IN) were started at the end of year 2012 and were performed accordingly to the firmly specified test program. The TF conductors produced by the ITER dome ...

IEEE Institute of Electrical and Electronics Engineers2014

Operational experience in the use of 18 kA HTS current leads for Edipo

Rainer Wesche, Pierluigi Bruzzone, Stephen Alfred March

In spring 2013, the Edipo facility of CRPP was commissioned. The dipole is powered via two 18 kA HTS current leads, designed and manufactured at CRPP. As part of the Edipo commissioning framework, the operational parameters of the leads were implemented in ...

Iop Publishing Ltd2014

Construction and test of a non-insulated insert coil using coated conductor tape

Rainer Wesche, Pierluigi Bruzzone, Davide Uglietti

A small coated conductor coil (central field 1 T at 200 A) was constructed and tested in order to evaluate the benefit and the possible disadvantages of non insulated, double pancake construction, in particular regarding quench protection. The insert coil ...

Iop Publishing Ltd2014

Results of the Test of Industrially Manufactured HTS Current Leads With Novel Design Features

Rainer Wesche, Pierluigi Bruzzone, Martin Vogel, Stephen Alfred March

In the framework of a collaboration, CRPP (Centre de Recherches en Physique des Plasmas) and WEKA AG have developed high-temperature superconductor (HTS) current leads for currents in the range of 3 to 30 kA, which are suitable for industrial fabrication. ...

IEEE Institute of Electrical and Electronics Engineers2014

Commissioning of the Main Coil of the EDIPO Test Facility

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Martin Vogel, Markus Jenni, Giancarlo Croari, Stephen Alfred March, Davide Uglietti

The EDIPO test facility is erected at CRPP Villigen with the aim of providing a flexible, high field test bed for high current force flow superconductors. The EDIPO main coil is a tilted-head race-track pair wound by a graded Nb3Sn cable-in-conduit conduct ...

IEEE Institute of Electrical and Electronics Engineers2014

Quench studies of YBCO insulated and noninsulated pancake coils

Rainer Wesche, Pierluigi Bruzzone, Natalia Hanna Glowa

As a result of extremely high upper critical fields Bc2, high temperature superconductors (HTSs) have the potential to be used as high field insert coils in magnet systems where the background field is provided by low temperature superconductors (LTS). How ...

IEEE Institute of Electrical and Electronics Engineers2014

Prospects for the use of high-T-c superconductors in fusion magnets and options for their test in SULTAN

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March, Davide Uglietti

In the last few years, the critical current densities of long commercially available REBa2Cu3O7-x (RE-123, where RE represents Y or a rare earth element) coated conductors have reached values of 250 A/cm-width at 77K and zero applied field. Even higher val ...

Elsevier Science Sa2013

Effect of transverse load on the critical current of a coated conductor Roebel cable

Rainer Wesche, Pierluigi Bruzzone, Davide Uglietti

Roebel cables are one possible option for use in the manufacture of high current conductors for various technical applications. In this work the behaviour of critical current under transverse loads up to 90 MPa was studied in coated conductor Roebel cables ...

2013

Parametric Study for the Cooling of HTS Current Leads Using a Liquid Nitrogen Bath

Rainer Wesche

The analysis of cooling of a binary high T-c superconductor (HTS) 20 kA current lead (CL) operating between 4.5 and 300 K is carried out. We assume that the HTS module is conduction cooled, whereas the cold end of the copper heat exchanger (HEX) is immerse ...

IEEE Institute of Electrical and Electronics Engineers2013

Fabrication Trials of Round Strands Composed of Coated Conductor Tapes

Rainer Wesche, Pierluigi Bruzzone, Davide Uglietti

Various techniques have been proposed in order to assemble coated conductor tapes into high current strands. In this work, the preparation of high current capacity round strands starting from industrial coated conductors has been investigated. Round, twist ...

IEEE Institute of Electrical and Electronics Engineers2013

Operation and Test Results From the SULTAN Test Facility

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Martin Vogel, Ciro Calzolaio, Stephen Alfred March

In the period between August 2010 and August 2011 the SULTAN test facility has been continuously operated, with over one dozen test campaigns. Among the ITER conductors, five Toroidal Field (TF) samples, two Central Solenoid (CS) samples and four NbTi samp ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Test Results of a 100 kA NbTi CICC

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov

For the secondary winding of the flux pump (superconducting transformer) of the EDIPO test facility at CRPP Villigen, a NbTi cable-in-conduit conductor (CICC) was designed at CRPP and procured at the industry. From a left section of the CICC a SULTAN sampl ...

Ieee-Inst Electrical Electronics Engineers Inc2012

The EDIPO Project: Status and Outlook

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Martin Vogel, Giancarlo Croari, Stephen Alfred March

The aim of this paper is to present an up to date review of the status of the European DIPOle (EDIPO) project-whose objective is to build a new facility to perform both DC and AC tests of large force flow superconductor samples in high magnetic background ...

IEEE-Inst Electrical Electronics Engineers Inc2012

Development of HTS current leads for industrial fabrication

Rainer Wesche, Pierluigi Bruzzone, Martin Vogel, Stephen Alfred March

High temperature superconductor current leads have been demonstrated to provide cryogenic savings compared to conventional copper leads. The applicability of HTS current leads to industrial fabrication is now a possibility. CRPP and WEKA AG are collaborati ...

Ieee-Inst Electrical Electronics Engineers Inc2012

Statistical analysis of the current-sharing temperature evolution in Nb3Sn cable-in-conduit-conductors for ITER

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Davide Uglietti

During the test of ITER conductors at nominal conditions, a degradation of the current sharing temperature has been observed after electromagnetic cyclic loading. Rather than focusing on the microscopic phenomena at the origin of the degradation, the degra ...

IEEE-Inst Electrical Electronics Engineers Inc2012

Design and manufacture of 20 kA HTS current leads for a hybrid magnet system

Rainer Wesche, Pierluigi Bruzzone, Martin Vogel, Stephen Alfred March

A new series connected 25 T hybrid magnet system is being developed by the Helmholtz Zentrum Berlin (HZB) for neutron scattering experiments. In collaboration with CRPP, high temperature superconducting (HTS) current leads have been developed for the power ...

Elsevier Science Bv2012

Development of magnet technologies for HTS insert coils

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov, Stephen Alfred March, Davide Uglietti, Natalia Hanna Glowa

An existing Nb3Sn laboratory magnet generating a magnetic field of 12 T is intended to be upgraded to 16 T by means of the use of a high temperature superconductor (HTS) insert coil. An outline design of the HTS insert coil is presented. In the design, the ...

Elsevier Science Bv2012

Test Results of Three Poloidal Field Superconducting Samples in SULTAN

Rainer Wesche, Pierluigi Bruzzone, Boris Stepanov

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

Test results of the 18 kA EDIPO HTS current leads

Félix Roth, Rainer Wesche, Pierluigi Bruzzone, Manuel Holenstein, Martin Vogel, Markus Jenni, Stephen Alfred March, Roland Felder

For the new test facility EDIPO (European DIPOle), to be hosted by CRPP, two 18 kA HIS current leads were manufactured and successfully tested. The HTS module, made of AgMgAu/Bi-2223 tapes, is cooled only by heat conduction to the cold end, while the coppe ...

2011

Page 3 sur 5