Quickly-separated disconnecting switch

Abstract

The invention discloses a quickly-separated disconnecting switch, comprising an outer seat, a moving contact, a moving arcing contact, a fixed contact, a fixed arcing contact, an elastic body and a limiting mechanism, wherein the moving arcing contact can slide relative to the moving contact; the elastic body can store energies when the moving contact slides away from the moving arcing contact; the limiting mechanism is used for arranging the relative sliding extreme positions between the moving contact and the moving arcing contact; an outer ring at the tail end of the outer wall of the moving arcing contact is provided with a male buckle in a raised mode; an inner ring at a port of the inner wall of a second conductive slot of the fixed arcing contact is provided with a female buckle; the moving contact is far away from the fixed contact in the process of separating brake; the male buckle is coordinated with the female buckle to connect the moving arcing contact with the fixed arcing contact, the moving contact slides away from the moving arcing contact oppositely, and the elastic body stores the energies; and after the moving contact slides away from the moving arcing contact oppositely to the extreme position, the moving arcing contact is separated from the fixed arcing contact under the action of the limiting mechanism, and the energies stored by the elastic body are released to quickly separate the moving arcing contact from the fixed arcing contact.

Description

technical field [0001] The invention relates to a quick disconnect disconnector. Background technique [0002] Early isolating switch, which includes outer seat, moving contact, moving arc contact, static contact and static arc contact, the moving contact and moving arc contact are fixed, and the static contact and static arc contact The head is fixed. Under the action of the operating mechanism, the movable contact can slide relative to the outer seat so as to be movable between the closing state and the opening state. During the opening process, the separation speed of the moving contact and the moving arc contact is the same, and they are all controlled by the operating mechanism, so the separation speed of the moving and static arc contacts is relatively slow, and it is impossible to realize the fast opening function, cut off the bus conversion current and cut off When the capacitive current is small, the number of arc restrikes is high, which reduces the reliability a...

AI Technical Summary

Problems solved by technology

During the opening process, the separation speed of the moving contact and the moving arc contact is the same, and they are all controlled by the operating mechanism, so the separation speed of the moving and static arc contacts is relatively slow, and it is impossible to realize the fast opening function, cut off the bus conversion current and cut off When the capacitive current is small, the arc reignites more times, which reduces the reliability and service life of the high-voltage switchgear

[0003] If the existing high-voltage switchgear needs to have a quick opening function, an electric spring operating mechanism is usually used to drive the contact movement. It also has the following disadvantages: 1. It requires high operating power of the mechanism and relatively high cost; 2. The high-voltage switchgear commonly used at present does not use an electric spring operating mechanism due to the limitation of space structure and economical considerations, and the contacts do not have the ability to quickly separate

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