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Abstract

The Tore Supra Ohmic Heating Circuit is equipped with four fast make switches and one fast opening switch. After many years of operation, it became necessary to substitute this equipment by modern components with similar ratings. An extensive research has been undertaken to find fast switches able to withstand more than 2500 operations per year without maintenance, at a make current of 54 kA, a voltage of 12 kV and with a closing time of less than 15 ms.

At the end of the investigation, it was decided to replace the old components by fast mechanical switches proposed by the Efremov Institute and based on a prototype developed for ITER, This paper presents the technical requirements and the characteristics of the switches and describes the operational experience gained with these components during operating campaigns of 2002 and 2003.

Additional information

Authors: BAREYT B, ITER EDA, Naka-Machi, Naka-gun, Ibaraki-ken (JP);EMELYANOVA I, D.V. Efremov Institute, STC SINTEZ, St Petersburg (RU);FILIPPOV F, D.V. Efremov Institute, STC SINTEZ, St Petersburg (RU);MIKAILOV N, D.V. Efremov Institute, STC SINTEZ, St Petersburg (RU);ZUNINO K ET AL, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR)
Bibliographic Reference: An oral paper given at: 20th IEEE/NPSS Symposium on Fusion Engineering (SOFE) Organised by: Nuclear and Plasma Sciences Society Held at: San Diego, California, USA, October 14 - 17, 2003
Availability: Available from Association EURATOM-CEA, Département de Recherches sur la Fusion Contrôlée, CEA Cadarache, F-13108 St Paul-Lez-Durance, France Tel:+33-4-42257001; Fax:+33-4-42256421 E-mail: dirdrfc@drfc.cad.cea.fr
Record Number: 200317065 / Last updated on: 2003-10-27
Category: PUBLICATION
Original language: en
Available languages: en
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