Communication Dans Un Congrès Année : 2025

Progress of the superconducting cables project in Paris: SuperRail

Gabriel Hajiri
Arnaud Allais
Laurent Gervaise
  • Fonction : Auteur
  • PersonId : 1430978
Louise Terrien
Hervé Caron
  • Fonction : Auteur
  • PersonId : 1080535

Résumé

The SuperRail project, backed by the French government, will be the first installation of a high-temperature superconducting (HTS) cable system on a commercially operated railway electric grid [1]. The project's goal is to develop, manufacture, install and operate of a HTS DC cable system at the Montparnasse railways station in Paris. The HTS technology provides here the only viable solution to increase the power supply from the railway substation to a group of railway tracks in such densely populated areas, strengthening and securing the railway grid, and contributing to the achievement of national low-carbon emission targets. Two 60-meter-long 1.5 kV-3.5 kA HTS DC cables made of 2G conductors will be installed in parallel. They are designed to meet stringent load chart requirements and to sustain a 67 kA-100 ms short-circuit current. Prior to the installation at Montparnasse, a complete 35-m HTS cable type test loop was installed and tested at the SNCF Railway Test Agency (SNCF-AEF). This loop includes two terminations, one joint, and a cooling system. A detailed description of the type test loop and of the type test results will be provided, including thermal cycles, pressure tests, dielectric and lightning impulse tests, nominal current tests, system losses characterization, fault current test, and V-I characterization [2]. The results confirm that the cable system met its design specifications, qualifying it for the SuperRail installation and for future railway projects. References 1. A. Allais, et al. “SuperRail− World-first HTS cable to be installed on a railway network in France” IEEE Transactions on Applied Superconductivity (2024). 2. S. Aboudrar, et al. “Qualification of the SuperRail HTS cable system”, IEEE Transactions on Applied Superconductivity (2025).

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Dates et versions

hal-05058553 , version 1 (06-05-2025)

Identifiants

  • HAL Id : hal-05058553 , version 1

Citer

Kévin Berger, Loïc Quéval, Gabriel Hajiri, Arnaud Allais, Yann Duclot, et al.. Progress of the superconducting cables project in Paris: SuperRail. 10th International Conference on Superconductivity and Magnetism - ICSM2025, Ali Gencer, Apr 2025, Fethiye-Oludeniz, Turkey. p. 297, id. 30310. ⟨hal-05058553⟩
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