What Is The Difference Between Copper Winding And Aluminum Winding Of Transformer Coil?
10-22 2024 | By:
What Is The Difference Between Copper Winding And Aluminum Winding Of Transformer Coil?
Aluminum coil transformers are larger than copper coil transformers. But you should know that “aluminum” is much cheaper than “copper”
1. For transformers used for special purposes and special occasions, it is recommended to use copper winding transformers with high reliability, high mechanical strength and small size. For example: power transformers used in switchgear, running light transformers for elevator shaft lighting, etc. It is not to say that other power supply schemes and equipment produced by other materials are not good. In comparison, it has been proved after years of time that the weather resistance and reliability of high-quality linear power supplies are still relatively high.
Transformer windings
2. General-purpose residential lighting transformers, even some transformers containing a class of loads, can completely use aluminum coil power transformers. The benefits are self-evident. What everyone is concerned about is the space factor of its winding, winding strength, short-circuit and overcurrent resistance, weather resistance index, and outgoing oxygen index index. There is nothing wrong with the aluminum winding transformers used for many years, but oil-immersed types are more common and dry types are rare.
3. From the material point of view: from silicon steel sheet to Permalloy to amorphous alloy, magnetic circuit materials are not included in our discussion this time, but it is undeniable that materials with high magnetic permeability have relatively few turns per volt, and various manufacturing parameters of transformers will change. Circuit materials are generally copper and aluminum. The national standard manufacturing standard is roughly that copper materials use high-purity oxygen-free copper, and aluminum materials use A-00 grade high-purity aluminum. The difference is that the difference in current carrying capacity determines the difference in the cross-sectional area of its conductor, and the manufacturing process and manufacturing parameters are different.
Transformer windings
4. From the current market situation: Transformers produced completely and strictly in accordance with national standards and IEC standards have no price advantage and no market for competition. The dual attributes of any commodity are its value and use value. This is also the driving force for the value orientation of special commodities such as transformers to take what they need.
5. Black-hearted merchants use refurbished sheets, recycled copper, and slim aluminum to manufacture counterfeit and shoddy products, coupled with unconventional marketing methods, a vicious cycle. Don’t expect a test report, a product certificate or a product supply contract to determine the merchant’s character.
6. My conclusion: Whether it is copper or aluminum, if it is produced, inspected, transported, installed, maintained and used according to certain standards,
You may also find these interesting:
