Industrial Aluminum Foil For Insulation Transformer Winding

Industrial Aluminum Foil For Insulation Transformer Winding

At present, the transformer windings of domestic power transformer manufacturers use copper wire or copper foil, but some manufacturers use aluminum wire or aluminum foil to make transformers. There are also many disputes about the advantages and disadvantages of copper wire transformers and aluminum wire transformers.
 
A long time ago, domestic transformer manufacturers used aluminum wire or aluminum foil to wind coils. Because copper resources were very scarce in my country at that time, copper prices were high, which increased production costs. In order to reduce production costs and facilitate supply, they had to adopt "aluminum substitutes". Copper" produces transformers.
 
In the 1990s, the supply of copper became normal, the price of copper also dropped, the cost of using copper to produce transformers also dropped, and domestic power transformer manufacturers resumed using copper to produce transformers.
 
But with the development of science and technology, many people in the industry also feel that using aluminum to produce transformers is also a very good choice. The evaluation of these two materials is as follows:
 
Evaluation of copper wire transformer: Copper wire has low resistivity, so it has good electrical conductivity, good thermal conductivity, higher mechanical strength than aluminum wire, and better tensile performance than aluminum wire. Copper wire has a higher melting point than aluminum wire, so it has strong short-circuit resistance.
 
Evaluation of aluminum wire transformer: The conductivity is worse than copper wire. Its melting point is lower than copper wire, easy to short circuit, mechanical strength is not so good, easy to break, poor thermal stability, poor impact resistance, aluminum wire Transformer welding joints are easily burnt under the impact of lightning and electric current, and aluminum materials are easy to oxidize and corrode.
 
But correspondingly they also have their own advantages, so you can choose according to actual needs. With the increase of aluminum products, the demand for aluminum foil is also getting higher and higher.
 
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