Generatrix conductor

Abstract

The invention provides a generatrix conductor. The generatrix conductor is characterized in that a body oxide layer of copper and an aluminum alloy (the oxide layer is thin, and resistance is small) is retained as an isolation protective layer. Electrochemical reaction can be prevented. The copper and the aluminum alloy (such as aluminum magnesium alloy and rare earth aluminum alloy) are matched in a lap joint mode. By splitting of the isolation protective layer, the copper and the aluminum alloy form two conductors which are relatively independent but equal in electric potential. Electromagnetic interference is not generated between the two conductors. Current density distribution uniformity effect is greatly improved. The generatrix conductor is suitable for utilizing in generatrixes of various voltage classes and the conductor of a sleeve tube.

Description

technical field [0001] The invention relates to a busbar conductor suitable for busbars of various voltage levels. Background technique [0002] In order to increase the ampacity and reduce costs, the existing busbar industry has proposed high-strength copper-clad aluminum cable conductors, combined conductor structure power cables, and multi-split copper or aluminum busbars. But still haven't found a more effective way to reduce cost and increase carrying capacity. The conductors of the above-mentioned series of products are copper, aluminum, copper-clad aluminum, and copper-aluminum conductors with insulation and isolation. The disadvantages are: [0003] ①The copper carrying capacity is small, the temperature rises, and the cost is high. [0004] ② The current carrying capacity of aluminum is small, the temperature rises, the conductivity of aluminum is relatively poor compared to copper, and it is easy to oxidize. [0005] ③ The current carrying capacity of copper-cla...

AI Technical Summary

Problems solved by technology

[0003]①The copper carrying capacity is small, the temperature rises, and the cost is high

[0004]②The current carrying capacity of aluminum is small, the temperature rises, the conductivity of aluminum is relatively poor compared to copper and it is easy to oxidize

[0005] ③ The current carrying capacity of copper-clad aluminum is small, the temperature rises, the process of copper-clad aluminum is complicated, and it is a metallurgical combination (the use of copper and aluminum in the prior art must be a metallurgical combination, otherwise there will be an electrochemical reaction), the adhesion of copper and aluminum Copper and aluminum are not layered, they are a whole, and the current density distribution is uneven

Compared with copper-clad aluminum wires with equal diameters, copper wires have a larger carrying capacity than copper-clad aluminum wires. Copper-clad aluminum cables with equal diameters are not energy-saving compared with copper cables, and waste copper-clad aluminum wires and cables are being recycled. The separation process of copper and aluminum is complicated and the pollution is serious

[0006]④ Disadvantages of multi-split copper or aluminum bus bars: small carrying capacity, high temperature, insulation between copper and aluminum, and the electrochemical reaction of copper and aluminum is solved, but Copper and aluminum are two independent conductors with unequal potential. The electromagnetic fields between the two conductors interfere with each other and reduce the carrying capacity of each other.

Images