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Proceedings Paper

100-kA vacuum current breaker of a modular design
Author(s): V. P. Ivanov; V. A. Vozdvijenskii; V. A. Jagnov; S. G. Solodovnikov; A. V. Mazulin; V. M. Ryjkov
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Paper Abstract

Direct current breaker of a modular design is developed for the strong field tokamak power supply system. The power supply system comprises four 800 MW alternative current generators with 4 GJ flywheels, thyristor rectifiers providing inductive stores pumping by a current up to 100 kA for 1 - 4 sec. To form current pulses of various shapes in the tokamak windings current breakers are used with either pneumatic or explosive drive, at a current switching synchronously of not worse than 100 mks. Current breakers of these types require that the current conducting elements be replaced after each shot. For recent years vacuum arc quenching chambers with an axial magnetic field are successfully employed as repetitive performance current breakers, basically for currents up to 40 kA. In the report some results of researches of a vacuum switch modular are presented which we used as prototype switch for currents of the order of 100 kA.

Paper Details

Date Published: 1 May 1994
PDF: 4 pages
Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); doi: 10.1117/12.174661
Show Author Affiliations
V. P. Ivanov, All-Russian Electrotechnical Institute (Russia)
V. A. Vozdvijenskii, All-Russian Electrotechnical Institute (Russia)
V. A. Jagnov, Troitsk Institute of Innovation and Thermonuclear Research (Russia)
S. G. Solodovnikov, Troitsk Institute of Innovation and Thermonuclear Research (Russia)
A. V. Mazulin, Troitsk Institute of Innovation and Thermonuclear Research (Russia)
V. M. Ryjkov, Moscow Engineering-Physical Institute (Russia)


Published in SPIE Proceedings Vol. 2259:
XVI International Symposium on Discharges and Electrical Insulation in Vacuum
Gennady A. Mesyats, Editor(s)

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