Low-voltage bypass copper busbar

Abstract

The invention belongs to the electric power engineering technology field and especially relates to a low-voltage bypass copper busbar. The busbar comprises a busbar body, one end of the busbar body isprovided with a vertical bending portion, and a section of the vertical bending portion is a circular structure. A number one connecting portion between the busbar body and the vertical bending portion is formed through forging, a width of the number one connecting portion is continuously reduced from the busbar body to the vertical bending portion and a thicknes is continuously increased. A polar plate is arranged at one end, far away from the busbar body, of the vertical bending portion and is a square copper plate. A number two connecting portion formed through forging is arranged betweenthe polar plate and the vertical bending portion, and the thickness of the number two connecting portion is gradually reduced from the vertical bending portion to the polar plate. One end of the busbar body with the circular cross section generates small deformation during bending so that a current-carrying area of the vertical bending portion is reduced a little, a thicker high-specification copper plate is prevented from being selected due to insufficient current-carrying performance of the vertical bending portion, use of copper materials is reduced, and cost is saved.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, in particular to a low-voltage bypass copper busbar. Background technique [0002] The bus bar refers to the copper bar or aluminum bar connecting the main switch in the electric cabinet and the switches in each branch circuit in the power supply system. The surface is insulated and its main function is to be used as a wire. [0003] The main power supply line of the distribution power supply device (copper bar and aluminum bar is called bus bar), and each branch line (branch bar) is led down from the bus bar. [0004] Busbar is sometimes called busbar, which is the name of conductive material on power distribution equipment. It is made of flat copper (equivalent to wires), without insulating layer, and the outside is painted with color paint indicating the phase sequence. It is mainly used for indoor transformers to power distribution. The cabinet is then connected to the mai...

AI Technical Summary

Problems solved by technology

[0016] In order to make up for the deficiencies of the existing technology and solve the bending operation of the vertical bending of the busbar in a narrow space, since the cross section of the busbar is flat and rectangular, the deformation of the outer ring of the turning is relatively large during the vertical bending, and the busbar is close to the outer The cross-section of the edge is significantly reduced, which increases the resistance of the busbar at the vertical bend, resulting in increased heat generation. Therefore, it is necessary to choose a copper busbar with a large current carrying capacity to increase the cost. A low-voltage bypass copper busbar proposed by the present invention Row

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