Bus-bar casing tube for high-voltage switch cabinet

Abstract

The invention discloses a busbar sleeve which is used in a high voltage switch cabinet. The structure of the busbar sleeve comprises a skirt which is arranged at the external wall of an insulator, and a busbar fixing plate which is radially arranged in an internal channel of the insulator, and the busbar fixing plate is opened with a through hole. The busbar sleeve of the invention is characterized in that: the cross section of the insulator takes the shape of a circular cylinder, the busbar fixing plate and the internal wall of the insulator are segregated, and the circular busbar fixing plate is embedded in an annular groove of the internal wall of the insulator. Compared with the prior art, the busbar fixing plate segregated with the internal wall of the insulator can adjust the angle of the through hole at option by rotating according to requirements, thus achieving the purpose that the metal busbar can be adjusted within 360 degrees along the axial direction of the sleeve, and the use or assembly of the busbar sleeve is very convenient; in addition, an enterprise can respectively process the busbar fixing plate and the insulator, and a selected corresponding busbar fixing plate is assembled in the annular groove of the internal wall of the insulator, thus the user requirement can be met. The busbar sleeve has the advantages of simple improved structure, strong commonalityand remarkable effect.

Description

【Technical field】 [0001] The invention belongs to a busbar bushing used for a high-voltage switch cabinet. 【Background technique】 [0002] For the connection between the high-voltage switchgear and the external main busbar and the connection of the cable inlet and outlet, three insulating bushings should be arranged at intervals on the cabinet wall, and the insulating bushings are generally epoxy resin bushings. The cross-sectional shape of the epoxy resin bushing is elliptical, and there is a skirt on the peripheral wall to increase the creepage distance. A busbar fixing plate is arranged radially on the inner channel of the tube, and the busbar fixing plate is integrated with the inner wall of the bushing. There is a through hole in the middle of the busbar fixing plate. The metal busbar enters the cabinet through the through hole and is accommodated on the inner channel of the bushing. The two ends of the busbar are the connecting ends. This kind of busbar bushing has th...

AI Technical Summary

Problems solved by technology

This kind of busbar bushing has the following defects in practical application: the busbar fixing plate is integrated with the inner wall of the busbar bushing, and the through hole is also fixed. Therefore, when installing or assembling, because the angle of the metal busbar cannot be adjusted, Not only does it bring a lot of inconvenience to installation or assembly, but also, for switchgears of different series and different current levels, it is necessary to produce corresponding specifications of busbar bushings, which has poor versatility and cannot be adapted to busbars of any specification, and consumes materials, time and inventory.

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