Our company manufactures and sells various types of busbars.
A 35kV busbar is a crucial component in an electrical power system, which is mainly used for transmitting, collecting, and distributing electrical energy at a voltage level of 35 kilovolts.
Busbars are typically made from highly conductive materials such as copper or aluminum. Copper busbars offer excellent electrical conductivity, high mechanical strength, and good corrosion resistance, although they come with a relatively high cost. Aluminum busbars, on the other hand, are lighter in weight and more cost - effective, despite having slightly lower electrical conductivity compared to copper.
In terms of cross - sectional shapes, 35kV busbars can be categorized into several types. Rectangular busbars are commonly used in indoor distribution installations at 35kV and below, with continuous operating currents up to 4000A. They feature good heat dissipation and convenient installation and connection, but have a relatively high skin - effect. Circular busbars are often employed in outdoor distribution installations above 35kV to prevent corona discharge, as they have a more uniform electric field distribution and less corona discharge, though their current - carrying capacity is relatively limited. Groove - shaped busbars are suitable for applications at 35kV and below with continuous operating currents ranging from 4000A to 8000A. They have higher mechanical strength, larger current - carrying capacity, and a relatively small skin - effect. Tubular busbars, usually made of aluminum alloy materials, are adopted in the design of substations for 35kV and above. This type of busbar can reduce the phase - to - phase distance, provide a clear wiring layout, and require less maintenance, but the busbar fixing fittings are relatively complex.
Insulation is also an important aspect. Busbars can be classified as bare busbars, which are directly exposed to the air and suitable for dry and safe indoor environments, and insulated busbars, which are covered with insulating materials like heat - shrinkable tubes or insulating tapes. Insulated busbars enhance safety by preventing phase - to - phase short - circuits and ground faults, making them suitable for damp, dusty environments or places with high safety requirements.
Moreover, based on the system structure, busbars can be divided into rigid busbars, such as rectangular, circular, and tubular busbars, which have high mechanical strength and are suitable for fixed installation; flexible busbars, including aluminum stranded wires, copper stranded wires, and steel - cored aluminum stranded wires, which are often used outdoors where there is sufficient space to accommodate their swing; and enclosed busbars, like common - box busbars and phase - separated busbars, which enclose the busbar conductors in metal casings, providing good insulation and protection, reducing the impact of the external environment, and improving the reliability of power supply.
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