In the field of power equipment manufacturing, transformer performance highly depends on the electrical conductivity, stability, and processing performance of the winding materials. Among various conductor materials, aluminum strip has become one of the mainstream choices for dry-type transformer and oil-immersed transformer windings due to its excellent conductivity, lightweight advantage, and controllable cost.
Transformer aluminum foil winding is one of the most important materials used in transformer winding manufacturing, and it directly affects the quality of the transformer. First, let us understand what a transformer is. A transformer consists of four parts: winding, iron core, oil tank, and insulating bushing. The main components are the winding and the iron core, also known as the transformer body. The winding is the electrical circuit of the transformer, while the iron core is the magnetic circuit. Together, they form the electromagnetic part of the transformer.
Among many aluminum alloy grades, 1050, 1060, 1070, and 1350 aluminum strips are widely used in transformer winding manufacturing. Different grades vary in purity, conductivity, and mechanical properties, so proper material selection is very important.
Unlike ordinary aluminum strips, transformer aluminum strips have extremely strict requirements for surface quality, electrical conductivity, burr control, and flatness. This is because during the winding process, burrs or scratches on the aluminum strip surface may easily puncture the interlayer insulation material, causing turn-to-turn short circuits and affecting the safe operation of the transformer.
Common Types of Aluminum Strip for Transformers
1050 transformer aluminum strip

1050 aluminum strip offers exceptional cost-effectiveness and is utilized in dry-type transformer windings.
1060 transformer aluminum strip

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