Solid insulated sleeve with inserting type connection

Abstract

The invention discloses a solid insulated sleeve with inserting type connection, which solves the problems that the existing cabinet type gas-insulated metal-enclosed switching equipment is connected in a power supply system by adopting a mode of cable incoming and outgoing lines, is complex in structure and higher in cost and the construction cost of a substation is increased. The solid insulated sleeve is characterized in that the surface of the solid insulated layer contains a large sleeve conical surface and a small sleeve conical surface; the transitional part of the large sleeve conical surface and the small sleeve conical surface is provided with a sleeve stepped boss; the outer surface of the large sleeve conical surface is provided with a silicon-rubber umbrella skirt; the outer edge of a low step of the stepped boss is provided with an installation flange; the contact part of the installation flange and the solid insulated layer is coated with a conductive coating; and the small sleeve conical surface is sheathed with a prefabricated silicon rubber inner conical sleeve. The solid insulated sleeve disclosed by the invention has the beneficial effects that wiring of the power supply system in a substation is simplified, the installation and connection of the equipment are simpler and more reliable, the manufacturing cost of the equipment and the construction cost of the substation are reduced, the creepage resistance and the foul resistance of the solid insulated sleeve are improved, and the continuity and the reliability of grounding of the installation flange are improved.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical appliances, and particularly relates to a plug-in solid insulating bushing used for plug-in connection with C-GIS products (cabinet type gas-insulated metal-enclosed switchgear). Background technique [0002] In the prior art, C-GIS products can only be connected to the power supply system by way of cable entry and exit, that is, the connection between the cable and C-GIS products adopts prefabricated plug-in cable terminals. It is more complicated and the cost is very high; at the same time, because the cable terminal structure adopts cable connection, auxiliary materials and auxiliary facilities such as cable aerial poles, cable outdoor terminals, cable grounding boxes, cable trenches or cable clamps need to be added, which also makes the substation Construction costs are greatly increased. Contents of the invention [0003] The technical problem to be solved by the present in...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, C-GIS products can only be connected to the power supply system by way of cable entry and exit, that is, the connection between the cable and C-GIS products adopts prefabricated plug-in cable terminals. It is more complicated and the cost is very high; at the same time, because the cable terminal structure adopts cable connection, auxiliary materials and auxiliary facilities such as cable aerial poles, cable outdoor terminals, cable grounding boxes, cable trenches or cable clamps need to be added, which also makes the substation Construction costs are greatly increased

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