Trigger device of outside high-voltage isolation switch

Abstract

This invention discloses a trigger device of outside high-voltage isolation switch. Arch surface contact is adopted between a trigger finger and a trigger base via improved trigger finger and trigger base. In a smaller space, the contact area is enlarged and the contact is more reliable. When the trigger finger opens and closes, the convex arch surface on the trigger finger rotates in the concave arch surface of the trigger base, and under the effect of a tension spring and a limiting plate between the trigger fingers, the contact between the trigger finger and the trigger can be always kept. A soft connection formed by multiple layers of metal sheets is increased between the trigger finger and the trigger base. Two ends of the soft connection are fixedly connected with the trigger finger and the trigger base, respectively. The soft multiple layers of metal sheets cannot influence the movement of the trigger finger. When the large current passes or the contact of the trigger finger and the trigger base is unreliable, the reliable conduction between the trigger finger and the trigger base can be guaranteed. This invention with nice shape is finely manufactured; and it has compact structure, good commonality. And the trigger finger and the spring can be conveniently exchanged.

Description

technical field [0001] The invention relates to an outdoor high-voltage isolation switch, in particular to a moving contact device of an outdoor high-voltage isolation switch suitable for large current (2000A). Background technique [0002] The outdoor high-voltage isolating switch currently in use, in the contact device, because the contact finger and the contact seat need to be connected, the contact finger and the contact seat may have poor contact, and when a large current is passed, it is easy to cause localization. The temperature rises, and even arcs are generated, which poses a great safety hazard. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a moving contact device of an outdoor high-voltage isolation switch, which can ensure the safe conduction of large current and increase the reliability of the moving contact of the isolation switch. [0004] In order to solve the above-mentioned technical problems...

AI Technical Summary

Problems solved by technology

[0002] In the outdoor high-voltage isolating switch currently in use, in the contact device, because there needs to be a movable connection between the contact finger and the contact seat, there may be poor contact between the contact finger and the contact seat. When a large current is passed, it is easy to cause local The temperature rises, and even arcs are generated, which poses a great safety hazard

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