FIELD: electricity.
SUBSTANCE: arc-extinguishing system includes movable contact, fixed contact and insulating housing. Insulating housing is made in the form of hollow pipe with slots made on inner surface and located at intervals along the whole housing. Metal magnetic inserts are located in each slot, and magnetic blow device for creation of longitudinal magnetic field is installed on fixed contact.
EFFECT: increasing the drop of voltage on the arc, increasing heat release from electric arc to the environment owing to its being rotated between slots of the housing, and decreasing the influence of exhaust gases on inner surface of the housing.
2 dwg
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