This article is cited in 5 papers

Plasma Investigations

Anode Mode of Vacuum Arc in a Multirod Electrode System

D. F. Alferov, V. A. Nevrovskii, V. A. Sidorov

Russian Electrotechnical Institute Named after V. I. Lenin

Abstract: The effect of the plasma of a high-current vacuum arc on the anode rods in a rod electrode system, which leads to the melting of the surface of copper anode rods and to the formation of droplets of the electrode material, is investigated. High-speed photography is used to register the formation of anode spots, and the sizes of the spots are determined at discharge currents from $30$ to $100$ kA. A one-dimensional nonstationary model of the melting of the anode and of the formation of droplets in the anode spot of a vacuum arc is proposed. The model is in satisfactory agreement with the results of observation of traces of melting on the anodes of used dischargers in a rod electrode system and with high-speed photographs of glow of the discharge plasma and spots on electrodes in a model of the rod electrode system.

UDC: 621.38735

Received: 02.03.2001

 English version: High Temperature, 2002, 40:1, 15–20

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