Fixation fitting used for busbar supporting

Abstract

The invention relates to the technical fields of a medium voltage switchgear in an electric power distribution system or a connection fixation fitting in a bus bridge, and particularly relates to a fixation fitting used for busbar supporting connected between a busbar and an insulator; the fixation fitting comprises a fitting body and a limiting fastening apparatus; the fitting body comprises twovertical plates and a horizontal plate; the vertical plates are arranged at the two ends of the horizontal plate; the horizontal plate is mounted on the insulator through a fixing apparatus; the limiting fastening apparatus is arranged on the vertical plates; and the busbar is mounted between the vertical plates through the limiting fastening apparatus. In the busbar mounting process, the fitting,the insulator and the busbar are assembled through the limiting fastening apparatus to complete busbar supporting and fixing, so that the problems existing in matching and positioning between the busbar and the fitting, the assembling sequence, fitting detachment and replacement in overhauling, and stress and deformation among the busbar, the fixation fitting and the insulator caused by busbar stretching due to thermal expansion and cold contraction of the busbar in the mounting process of the busbar and the fitting can be solved.

Description

technical field [0001] The invention relates to the technical field of connecting and fixing fittings in a medium-voltage switchgear or a bus bridge in a power distribution system, and in particular relates to a fixing fitting used for busbar support. Background technique [0002] In the existing medium-voltage switchgear of the power distribution system, the busbar is in the cabinet body or the busbar bridge, and bolts are usually used to pass through the pre-opened holes on the busbar to connect with the insulators, which causes many problems that are not conducive to the installation, operation and maintenance of the switchgear. Overhaul issues. During the installation process, due to the accumulation of cabinet dimensional errors and the accumulation of busbar processing dimensional errors, in the cooperation and fixation of the busbar and fittings, as well as the cooperation and fixation of the installation slot plate and the insulator, there are often installation and ...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects in the prior art, the present invention provides a fixed fitting for busbar support, which can solve the problem of the coordination and positioning of the busbar and fittings during the installation process, the problem of assembly sequence, and the problem of fittings during maintenance. The problem of disassembly and replacement, as well as the stress and deformation problems between the busbar, fixing fittings and insulators caused by the expansion and contraction of the busbar caused by the thermal expansion and contraction of the busbar during operation

This kind of combined structure design can solve the problem of the coordination and positioning of the busbar and fittings during the installation process, the problem of assembly sequence, the problem of disassembly and replacement of fittings during maintenance, and the expansion and contraction of the busbar caused by the expansion and contraction of the busbar during operation. Cause stress and deformation problems between busbars, fixing fittings and insulators

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