FIELD: electrical engineering. SUBSTANCE: arc control device of high-voltage gas- filled self-compression switch includes mobile 2 (7) and immobile 1 (5) main and arc control contacts accordingly, insulation nozzle 8, compression space K between mobile contact system and immobile piston 3. Inertially limited mobile piston 9 is entered into compression space K between inner surface of insulation nozzle 8 and outer surface of arc control contact 7 which is separated from piston with circular duct 10. EFFECT: increased operational efficiency and reliability. 2 dwg
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