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  4. EDIPO: The Test Facility for High-Current High-Field HTS Superconductors
 
research article

EDIPO: The Test Facility for High-Current High-Field HTS Superconductors

Bruzzone, P.  
•
Stepanov, B.
•
Uglietti, D.
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2016
IEEE Transactions on Applied Superconductivity

The commissioning of the European DIPOle (EDIPO) test facility at the Center for Research in Plasma Physics in Villigen was completed in Spring 2015, and the first test of a 60-kA/12-T high-temperature superconductor (HTS) was carried out in June 2015. User specifications are issued to allow external users to prepare their own sample matching the interface of the test facility. EDIPO offers a background magnetic field up to 12.35 T in a rectangular test well with a cross section of 89 mm x 138 mm (sample dimension). The homogeneous high field length is 910 mm (+/- 1%) or 680 mm (+/- 0.5%) at full current. A set of small copper coils provides a superimposed ac field with amplitude up to +/- 0.3 T and frequency up to 1 Hz. A superconducting transformer provides steady-state operating current for the sample up to 100 kA. The cooling circuit of the sample supplies supercritical helium at 10-bar inlet pressure. The mass flow rate, which is adjustable by cryogenic valves, is up to 8 g/s in each branch of the sample at 4.5 K. The operating temperature ranges from 4.5 to 60 K (at high temperature, the range of mass flow rate is reduced). To test samples at temperature higher than 10 K, an HTS "adapter" connects the sample to the NbTi transformer plates, which must remain cold. In such case, the length of the sample is reduced from 3600 mm (typical low-temperature superconductor sample) to 2900 mm (HTS sample with adapter).

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Type
research article
DOI
10.1109/Tasc.2015.2501102
Web of Science ID

WOS:000367619300001

Author(s)
Bruzzone, P.  
•
Stepanov, B.
•
Uglietti, D.
•
Wesche, R.
•
Sedlak, K.
Date Issued

2016

Publisher

IEEE Institute of Electrical and Electronics Engineers

Published in
IEEE Transactions on Applied Superconductivity
Volume

26

Issue

2

Article Number

9500106

Subjects

High-current superconducting cables

•

high magnetic field

•

high-temperature superconductors (HTSs)

•

test facility

•

user interfaces

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SPC  
Available on Infoscience
February 16, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/123714
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