24KV solid fully-closed switch insulation cover

Abstract

The invention relates to a 24KV solid fully-closed switch insulation cover which is a long cylinder consisting of an upper half cylinder and a lower half cylinder which are connected,wherein the upper half cylinder is transparent, a flange is arranged on the upper opening part of the upper half cylinder, and a sealing groove is arranged on the flange. The outside of the lower half cylinder is provided with a bus double-pass sleeve, and a copper sleeve is embedded in the bus double-pass sleeve. The inside of the lower half cylinder is provided with a vacuum bubble envelope communicated with the bus double-pass sleeve, a shielding layer is arranged in an inner cavity of the vacuum bubble envelope, and a T-shaped contact and a blade-connected contact are screwed on the left wall of the vacuum bubble envelope. The bottom of the lower half cylinder is provided with a wire inlet and outlet sleeve, a copper row and post connector is arranged in an inner cavity of the lower half cylinder, the end of a copper row is embedded in the wire inlet and outlet sleeve, and the end of a copper post is embedded in the lower half cylinder. A ground copper bar contact is fixed on the left wall of the lower half cylinder connected with the copper bar, and the position of the blade-connected contact is corresponding to the horizontal position of the T-shaped contact. The invention is convenient for mounting maintenance buses, has various and easily-adjustable schemes for mounting inlet wires and outlet wires of the wire inlet and outlet sleeve, and is also convenient for observing the opening and closing of switches in the insulation cover.

Description

technical field [0001] The invention relates to a solid-insulation fully-enclosed switch insulation cover for medium-voltage switchgear, especially a 24KV solid-insulation fully-enclosed switch used for segmentally isolating grid current in a power transmission and distribution cabinet as an obvious disconnect switch Switch insulation cover. Background technique [0002] The existing solid insulation cover is only 10KV solid insulation fully sealed switch insulation cover. This insulation cover is suitable for installing 10KV switchgear, but not suitable for installing switchgear with larger working power. The busbar bushing design of this kind of insulation cover is mostly lower It is very unfavorable to the installation and maintenance of the busbar, and the work efficiency and reliability are not high; the outlet bushing is only for the front outlet wiring, and the scheme is single, which cannot meet the scheme requirements of different customers; the observation window o...

AI Technical Summary

Problems solved by technology

[0002] The existing solid insulation cover is only 10KV solid insulation fully sealed switch insulation cover. This insulation cover is suitable for installing 10KV switchgear, but it is not suitable for installing switchgear with larger working power. It is very unfavorable to the installation and maintenance of the busbar, and the work efficiency and reliability are not high; the outlet bushing is only for front-out wiring, and the scheme is single, which cannot meet the scheme requirements of different customers; the observation window on the insulation cover is small, which is not easy Easy to observe the opening and closing state of the switch

Images