Transformer Winding Aluminium Strips

The 1050 O aluminum strip in a transformer is the most commonly used material in transformers.

The reason why it can be widely used in transformers is related to its excellent properties.

1050 O aluminum strip has high electrical conductivity and thermal conductivity. In the actual application process of transformers, 1050 O aluminum strips are often used as support materials to form transformer windings, which can reduce the loss of transformers and improve the performance of transformers.

The thickness of the 1050 O aluminum strip in a transformer is generally between 0.1 mm and 1 mm. It adopts a single-layer or double-layer structure, which can effectively reduce the leakage magnetic field of the coil and improve its insulation performance.

The transformer 1050 O aluminum strip is a kind of connecting material for winding coils, which is wound on the coil in a certain way to form a specific inductance, mutual inductance or distributed capacitance. In addition to this kind of connection material, there are other forms of connection between coil turns, such as soldering connections and welding connections.

1060 O aluminum strip for transformer winding, the content is 99.6%, mainly used for some high and low voltage electrical equipment, such as various transformers winding. The common state is O state, so it is also called aluminum strip for transformer winding.

The aluminum strip in the electrical equipment industry has very high requirements on its performance, which requires the flexibility of the aluminum belt to be good enough.

This requires that the 1060 O aluminum strip for transformer winding has a very high elongation. In addition, it should have a good crack resistance and uniformity. meet

1060 O aluminum strip for transformer winding is mainly made of 1 series pure aluminum strip product, tensile strength can reach more than 135Mpa, elongation is up to 15%, the finished product has good electrical conductivity, thermal conductivity and corrosion resistance.

1060 O aluminum alloy has high plasticity, corrosion resistance, electrical conductivity and thermal conductivity. But they have lower strength than other alloys.

1060 O aluminum strip has high plasticity at annealed state and hardening phenomenon in semi cold hardening, good corrosion resistance, good weldability, poor machinability, but with extrusion and stretch forming high performance. The electrical conductivity of 1060 O strip is about 60%IACS. The density is 2.7 g/cm3.

The 1070 O aluminum foil for transformer winding has the advantages of high conductivity, good corrosion resistance, high thermal conductivity and large extension ratio.

The annealing state is O.

The 1070 O aluminum foil for transformer winding can be used to make dry-type transformers, oil-immersed transformers and reactor windings.

The 1070 O aluminum foil for transformer winding has a density of 2.7 g/cm3 and the tensile strength is 60-105 MPa, which can meet the strength requirement of aluminum foil winding.

The elongation is 15-30%, which can meet the elongation requirement of aluminum foil winding. The electrical conductivity is ≥65%IACS or ≥60%IACS.

The 1070 O aluminum foil for transformer winding has good heat dissipation and does not increase the temperature rise of the coil during long-term operation, thus prolonging the service life of the coil. The use of 1070 O aluminum foil for transformer winding can reduce the mass manufacturing cost of transformers by 15%.

Advantages of 1070 O aluminum foil for transformer winding:

1. Good plasticity after annealing;

2. Easy to process and weld;

3. Excellent corrosion resistance;

4. High conductivity and thermal conductivity;

5. Low strength;

6. Good elongation (≥20%) and other characteristics.

1350 O aluminum foil for transformer winding is widely used in the transformer industry, such as oil-immersed transformers and dry-type transformers.

The 1350 O aluminum foil for transformer winding can be divided into two types: bare and coated.

The bare type is mainly used as the winding material of oil-immersed transformers, and the coated type is mainly used as the interlayer insulation material.

Features of 1350 O aluminum foil for transformer winding:

1. Aluminium foil 1350 has excellent elongation and tensile strength, suitable for winding forming;

2. Good plasticity, uniform thickness, no burr after stamping;

3. Excellent electrical conductivity and thermal conductivity properties;

4. Good corrosion resistance and weldability;

5. Smooth surface quality, low pinhole degree;

6. High temperature resistance, can withstand the test of high temperature 130℃.