| 摘要 |
FIELD: electric engineering, in particular, engineering of contactors and launchers. ^ SUBSTANCE: in known electromagnetic commutation device each arc-guiding bracket-shaped element is made in form of arc-guiding bracket, enveloping each bracket of immobile contact unit. Each arc-guiding bracket contains upper working section, lower supporting section, frontal wall and vertical screen, forming straight angle with upper working part and having a step in its upper part for holding arc-guiding chamber in grooves, while lower supporting section is provided with aperture for holding and pressing lower shelf of contact bracket. Copper plate of each contact bridge is located on the outside of steel trough-shaped base. Shelves and apertures are made on the lid of body. On the frame of enabling coil a strap is made, absorbers of core are made with shelves, rounded on ends in oval shape. ^ EFFECT: saving of deficit materials, in particular silver, lower flow of materials of parts, comfortable maintenance and protection from contact with current-conducting parts. ^ 10 cl, 23 dwg |
