Insulating cover for solid insulating fully sealed switch

Abstract

An insulating cover for a solid insulating fully sealed switch belongs to an isolation device in a power transmission and distribution cabinet and comprises a cover and a vacuum bubble sleeve, wherein the cover body is made of epoxy resin materials; the cover comprises a cover plate and a first bolt; the front end of the cover plate is provided with bulge; the vacuum bubble sleeve is vertically arranged in front of the bulge; the bulge is provided with a groove communicated with the vacuum bubble sleeve; the inner cavity of the vacuum bubble sleeve is provided with a shielding layer and a ring-like convex plate; the bottom surface of the vacuum bubble sleeve is provided with two embedded threaded holes and a soft connecting hole; the vacuum bubble sleeve is provided with a second bolt connected with the first bolt into a whole; and the front end face of the vacuum bubble sleeve is provided with two seal grooves. Adopting the epoxy resin insulating materials, the insulating cover improves the insulativity of the insulated switch and has small volume, reduces the volume of the ring network cabinet and is convenient and simple to be spliced with the upper and lower isolation covers, and the seal rings are installed in the seal grooves at the right end of the vacuum bubble sleeve, thus improving the safety of switch operation.

Description

technical field [0001] The invention relates to an isolation device installed in a solid-insulation fully-sealed switch cabinet for power transmission and distribution cabinets, in particular to a solid-insulation fully-sealed switch insulation cover. Background technique [0002] Traditional switchgear mostly uses SF6 gas to seal and insulate high-voltage vacuum switches; because SF6 gas is toxic after arc extinguishing, and is easy to leak, the metal box is large in size, requires high sealing performance, and the processing technology is complicated, resulting in the cost of the box. High, the maintenance and detection are more complicated, the protection level is not enough, and the charged body is exposed, eroded by air and dust, which may easily cause corrosion of the charged body, reduce the insulation level, and easily cause personal casualties. It is also an integral structure , large volume, inconvenient for installation and debugging, and cannot be replaced and re...

AI Technical Summary

Problems solved by technology

[0002] Traditional switchgear mostly uses SF6 gas to seal and insulate high-voltage vacuum switches; because SF6 gas is toxic after arc extinguishing, and is easy to leak, the metal box is large in size, requires high sealing performance, and the processing technology is complicated, resulting in the cost of the box. High, the maintenance and detection are more complicated, the protection level is not enough, and the charged body is exposed, eroded by air and dust, which may easily cause corrosion of the charged body, reduce the insulation level, and easily cause personal casualties. It is also an integral structure , large volume, inconvenient for installation and debugging, and cannot be replaced and repaired on site; the busbar is located at the bottom of the switch, which is inconvenient for assembly and maintenance

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