First Tests of Twisted-Pair HTS 1 kA Range Cables for Use in Superconducting Links

Ballarino, A.; Fleiter, J.; Hurte, J.; Sitko, M.; Willering, Gerard

doi:10.1016/j.phpro.2012.06.140

Cited by 10 publications

(9 citation statements)

References 3 publications

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“…Novel cables made from different types of high temperature superconducting materials are being developed at CERN for use in the LHC superconducting links [2,10]. For the links powering the High-Luminosity Triplets, an extensive program aiming at the development of both 2 MgB round wires and cables was carried out during the last three years.…”

Section: Cold Powering Systemmentioning

confidence: 99%

Section: Cold Powering Systemmentioning

confidence: 99%

“…For the links powering the High-Luminosity Triplets, an extensive program aiming at the development of both 2 MgB round wires and cables was carried out during the last three years. Thanks to a development program between CERN and the company Columbus Superconductors, 2 MgB round wires with the mechanical properties required for cabling were produced and extensively characterized [12,13]. The first ever made high-current superconducting (20 kA at 24 K) cables assembled from reacted 2 MgB round wires were then assembled and successfully measured at CERN in a system-like configuration [10,14].…”

Section: Cold Powering Systemmentioning

confidence: 99%

“…A solution for remote powering is proposed also for LHC P7 [2,3]. In this case, power converters and current leads are located in an underground radiationfree gallery, which serves as access to the LHC ring (TZ76).…”

Section: Introductionmentioning

confidence: 99%

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Powering the High-Luminosity Triplets

Ballarino¹,

Burnet²

2015

The High Luminosity Large Hadron Collider

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The powering of the magnets in the LHC High-Luminosity Triplets requires production and transfer of more than 150 kA of DC current. High precision power converters will be adopted, and novel High Temperature Superconducting (HTS) current leads and MgB 2 based transfer lines will provide the electrical link between the power converters and the magnets. This chapter gives an overview of the systems conceived in the framework of the LHC HighLuminosity upgrade for feeding the superconducting magnet circuits. The focus is on requirements, challenges and novel developments.

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Section: Cold Powering Systemmentioning

confidence: 99%

Section: Cold Powering Systemmentioning

confidence: 99%

Section: Cold Powering Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Powering the High-Luminosity Triplets

Ballarino¹,

Burnet²

2015

The High Luminosity Large Hadron Collider

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“…The final twisted-pair assembly has an equivalent diameter varying from 5.6 to 7.2 mm and a typical twist pitch of 300 mm. The measured current capability is 1 kA per unit of the twisted-pair assembly at about 30 K for MgB 2 and at 60 K for REBCO and Bi-2223 [11,12]. Two cabling machines, a static machine for assembling stacks of insulated tapes and a rotating machine for the twisting the two insulated stacks, were designed and built at CERN.…”

Section: Superconducting Cablesmentioning

confidence: 99%

Development of superconducting links for the Large Hadron Collider machine

Ballarino

2014

Supercond. Sci. Technol.

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In the framework of the upgrade of the Large Hadron Collider (LHC) machine, new superconducting lines are being developed for the feeding of the LHC magnets. The proposed electrical layout envisages the location of the power converters in surface buildings, and the transfer of the current from the surface to the LHC tunnel, where the magnets are located, via superconducting links containing tens of cables feeding different circuits and transferring altogether more than 150 kA. Depending on the location, the links will have a length ranging from 300 m to 500 m, and they will span a vertical distance of about 80 m. An overview of the R&D program that has been launched by CERN is presented, with special attention to the development of novel types of cables made from MgB 2 and high temperature superconductors (Bi-2223 and REBCO) and to the results of the tests performed on prototype links. Plans for future activities are presented, together with a timeline for potential future integration in the LHC machine.

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