| 摘要 |
The present invention relates to a screw tap structure of a fixing screw mechanically fixing a vacuum interrupter to a power apparatus. More specifically, a vacuum circuit breaker includes: the vacuum interrupter having a movable electrode and a fixed electrode; female screw units which are formed by at least one of the movable electrode and the fixed electrode; and a coupling member which has a male screw unit coupled to the female screw unit to fix the vacuum interrupter to the power apparatus. The female screw units are configured to include at least two types of female screw units having different diameters. Accordingly, the present invention does not need a design such as the shape of an electrode to be modified when the assembly measurement of a coupling bolt changes based on the manufacturer and model of the vacuum interrupter. |
