Aluminum Strip For Transformer

The transformer aluminum strip is divided into different grades, specifications and states according to the application. The grades are: 1060, 1050, 1050A, 1060, 1070, 1070A, 1350, state: O state. O represents a soft state, and the degree of hardness and hardness, and the degree of annealing can be indicated by numbers. The thickness is between 0.08 and 3.00, and is called: aluminum tape and foil for dry transformers.

The aluminum ribbon and foil for dry-type transformers are made of high-quality pure aluminum. They have high electrical conductivity and soft texture. The surface is smooth and burr-free. It is an ideal material for the production of dry-type transformers and a key raw material for manufacturing transformer windings. Many technical indexes such as electrical conductivity of aluminum strip and foil, burr curling, side bending and surface quality are required.

Aluminum strips and foils for dry-type transformers are generally made of 1060 aluminum strips, which are more than 99.6% aluminum and are also called pure aluminum sheets. They belong to a commonly used series in the aluminum strip family. The advantages of this series of aluminum plates: the most commonly used series, the production process is relatively simple, the technology is relatively mature, and the price has great advantages over other high-grade alloy aluminum plates. With good elongation and tensile strength, it can fully meet the normal processing requirements (stamping, drawing) and high formability. For industrial pure aluminum, it has high plasticity, corrosion resistance, electrical conductivity and thermal conductivity, but its strength is low, heat treatment can not enhance the machinability; gas welding, hydrogen atom welding and contact welding are not easy to braze; Pressure processing and extension, bending.

In the 1060 O state, the transformer aluminum strip has a high aluminum content (usually 99.6%-99.7% or more), and the electrical conductivity and thermal conductivity of aluminum are only lower than the conventional metal of copper. The conductive properties of the metal are: silver copper, gold, aluminum and nickel. Steel alloy. Since the price of copper is much higher than that of aluminum, the most commonly used material for transformer belts is aluminum strip. The transformer aluminum strip has A1060(O), which is mainly used as the conductive material for the high and low voltage windings of the dry type transformer. The chemical composition of the aluminum strip meets the requirements of GB/T 3190-1996 “Chemical composition of deformed aluminum and aluminum alloy”. The technical requirements and mechanical properties meet the technical requirements for the supply of finished aluminum foil for coils of TUN900 069 1998. Transformer aluminum and aluminum strip, mainly used in large transformers, solar energy, power industry.

Uses: aluminum belt and aluminum foil for dry type transformer
◆Material: 1060-O
◆Thickness: 0.2mm – 3.0mm, width: 20mm – 1650mm.
◆Description: The surface is smooth and scratch-free. The sides can be chamfered (rounded, rounded), no burrs, better than national standards. The resistivity is less than or equal to 0.028.
◆Packing: wooden pallet, inner diameter 300mm or 500mm.

The transformer aluminum strip is made of high-purity aluminum, and the aluminum content can reach more than 99.6%. It has unparalleled conductivity of other series of aluminum strips.

Application and usage editing
The utility model has the advantages of small volume, light weight, good insulation performance, good flame retardancy, no pollution, partial discharge, moisture resistance, stable and reliable operation, low noise and low maintenance cost, and is used in high-rise buildings and underground. Facilities, commercial centers, residential areas, hotels, restaurants and coastal wet areas are widely used.

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