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Performance and quench characteristics of a pancake coil wound with 2G YBCO Roebel cable

Performance and quench characteristics of a pancake coil wound with 2G YBCO Roebel cable
Performance and quench characteristics of a pancake coil wound with 2G YBCO Roebel cable

The YBCO Roebel cable is a promising option for high energy accelerator magnets and tokamak devices with high current carrying capability and compactness. Referring to complex current sharing and normal zone propagation, it is difficult to apply the traditional superconductor quench measurement methodology to such long Roebel cable (2m) in an adiabatic condition. An alternative method for quench measurement is to make a Roebel pancake coil co-wound with ribbon fiberglass. This paper starts reporting the methodology to wound the coil with impregnation process and the wire installment for the quench measurement. Some initial performance measurements and a first trial of quench measurement were processed in LN2 at 77K to show the robust performance of this Roebel cable at all the current contacts while maintaining the cable effectively adiabatic or similar to real magnets.

Copper, Critical current density (superconductivity), Current measurement, Heating systems, high temperature superconductors, pancake coil, quench measurement, Roebel cable, Superconducting cables, Temperature measurement, Voltage measurement
1051-8223
1-5
Zhang, Qingbo
d9e5bf57-ea39-42e9-8056-eb2be5845e3f
Yang, Yifeng
4cac858a-e0c0-4174-a839-05ca394fc51f
Young, Edward A.
d3a881b0-a564-41f5-9843-34ae86da360f
Cavallucci, Lorenzo
c7db63fe-4607-4dbc-a2c1-71778993caba
Kario, Anna
060118d8-3e82-4934-bdf9-a9df622e73bf
Goldacker, Wilfried
ce57bc6f-3491-4512-8967-82a9658acd30
Usoskin, Alexander
2e0ddfda-4a03-4bae-8c0f-66014c69ec81
Bottura, Luca
ef09d0b9-b511-4cb2-82e4-d8c4f53bbfb0
Zhang, Qingbo
d9e5bf57-ea39-42e9-8056-eb2be5845e3f
Yang, Yifeng
4cac858a-e0c0-4174-a839-05ca394fc51f
Young, Edward A.
d3a881b0-a564-41f5-9843-34ae86da360f
Cavallucci, Lorenzo
c7db63fe-4607-4dbc-a2c1-71778993caba
Kario, Anna
060118d8-3e82-4934-bdf9-a9df622e73bf
Goldacker, Wilfried
ce57bc6f-3491-4512-8967-82a9658acd30
Usoskin, Alexander
2e0ddfda-4a03-4bae-8c0f-66014c69ec81
Bottura, Luca
ef09d0b9-b511-4cb2-82e4-d8c4f53bbfb0

Zhang, Qingbo, Yang, Yifeng, Young, Edward A., Cavallucci, Lorenzo, Kario, Anna, Goldacker, Wilfried, Usoskin, Alexander and Bottura, Luca (2018) Performance and quench characteristics of a pancake coil wound with 2G YBCO Roebel cable. IEEE Transactions on Applied Superconductivity, 28 (4), 1-5, [4801005]. (doi:10.1109/TASC.2018.2799140).

Record type: Article

Abstract

The YBCO Roebel cable is a promising option for high energy accelerator magnets and tokamak devices with high current carrying capability and compactness. Referring to complex current sharing and normal zone propagation, it is difficult to apply the traditional superconductor quench measurement methodology to such long Roebel cable (2m) in an adiabatic condition. An alternative method for quench measurement is to make a Roebel pancake coil co-wound with ribbon fiberglass. This paper starts reporting the methodology to wound the coil with impregnation process and the wire installment for the quench measurement. Some initial performance measurements and a first trial of quench measurement were processed in LN2 at 77K to show the robust performance of this Roebel cable at all the current contacts while maintaining the cable effectively adiabatic or similar to real magnets.

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More information

Accepted/In Press date: 25 January 2018
e-pub ahead of print date: 26 January 2018
Published date: June 2018
Keywords: Copper, Critical current density (superconductivity), Current measurement, Heating systems, high temperature superconductors, pancake coil, quench measurement, Roebel cable, Superconducting cables, Temperature measurement, Voltage measurement

Identifiers

Local EPrints ID: 418707
URI: http://eprints.soton.ac.uk/id/eprint/418707
ISSN: 1051-8223
PURE UUID: 985af577-3deb-4a31-9bfc-6f4db661f3a7
ORCID for Yifeng Yang: ORCID iD orcid.org/0000-0002-3874-6735

Catalogue record

Date deposited: 19 Mar 2018 17:30
Last modified: 07 Oct 2020 01:37

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