100-kA vacuum current breaker of a modular design

V. P. Ivanov; V. A. Vozdvijenskii; V. A. Jagnov; S. G. Solodovnikov; A. V. Mazulin; V. M. Ryjkov

doi:10.1117/12.174661

1 May 1994 100-kA vacuum current breaker of a modular design

V. P. Ivanov, V. A. Vozdvijenskii, V. A. Jagnov, S. G. Solodovnikov, A. V. Mazulin, V. M. Ryjkov

Proceedings Volume 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum; (1994) https://doi.org/10.1117/12.174661
Event: XVI International Symposium on Discharges and Electrical Insulation in Vacuum, 1994, Moscow-St. Petersburg, Russian Federation

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.

Citation Download Citation

V. P. Ivanov, V. A. Vozdvijenskii, V. A. Jagnov, S. G. Solodovnikov, A. V. Mazulin, and V. M. Ryjkov "100-kA vacuum current breaker of a modular design", Proc. SPIE 2259, XVI International Symposium on Discharges and Electrical Insulation in Vacuum, (1 May 1994); https://doi.org/10.1117/12.174661

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