Energy-saving copper-aluminum composite conductor plug-in busbar in switchgear

Abstract

The invention discloses an energy-saving copper-aluminum composite conductor plug-in busbar in a switchgear, and relates to an energy-saving copper-aluminum composite conductor plug-in busbar trunk system of a low-voltage transmission and distribution line in the switchgear. The busbar comprises a lower cover plate, an upper cover plate and a groove body formed by two side plates arranged between the upper cover plate and the lower cover plate. Opposing upper insulating bracket and lower insulating bracket are arranged in the groove body. The lower insulating bracket is fixedly arranged on the lower cover plate through sealant. A number of evenly spaced bus installation grooves are arranged on the opposite surfaces of the upper insulating bracket and the lower insulating bracket. Buses are arranged in the bus installation grooves. An insulator is arranged between two adjacent buses. Tooth-like heat dissipation fins are arranged on two side plates and the upper cover plate. The busbar provided by the invention has the advantages of simple structure, low cost, good-looking appearance, good heat dissipation, large current carrying capacity, small temperature rise, high dynamic and thermal stability, great fireproof performance, fire resistance and the like.

Description

technical field [0001] The invention relates to an energy-saving copper-aluminum composite conductor plug-in busway trunking system used for low-voltage power transmission and distribution lines in switch cabinets, in particular to an energy-saving copper-aluminum composite conductor plug-in busway trunking system used in switch cabinets . Background technique [0002] The busway is a closed metal device composed of copper and aluminum busbars, which is used to distribute large power to the components of the decentralized system. The energy-saving copper-aluminum composite conductor plug-in busway used in switchgear has the characteristics of series matching, commercial production, small size, large capacity, short design and construction period, convenient loading and unloading, no combustion, safety, reliability and long service life. . [0003] The traditional busway is to bundle the copper bars together, the copper bars are covered by an insulating layer, and the rows ...

AI Technical Summary

Problems solved by technology

However, the shell of the traditional busway mainly adopts a flat structure with low structural strength; and because the copper bars are close together without gaps, as long as there is a drop of water or the temperature is too high, the insulation resistance between the rows will decrease. It will reduce, thereby burning out the insulation layer, causing equipment failure, and in the case of overload, the excessive heat of the copper bar will also burn out the insulation layer, thereby causing equipment failure

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