The performance and use of enamel winding wire

Enamel winding wires, also known as magnet wires, are essential in electrical engineering, primarily for winding windings in devices such as transformers, motors, and generators. Their properties and uses depend on the type of enamel insulation and base conductor material.

Key Properties of Enamel Winding Wires

Electrical Insulation:

Enamel coating acts as an electrical insulator, preventing short circuits between adjacent turns of the wire.

Insulation breakdown voltage varies depending on the enamel type and thickness.

Thermal Resistance:

Enamel types are rated for different temperature classes (e.g., Class B: 130°C, Class F: 155°C, Class H: 180°C).

High-temperature resistance is crucial for applications in motors and transformers.

Chemical Resistance:

Many enamel coatings are resistant to solvents, oils, and moisture, ensuring long-term durability in various environments.

Mechanical Strength:

Resistant to abrasion and capable of withstanding mechanical stress during the winding process.

Flexibility and Adherence:

Enamel coatings are flexible and adhere well to the wire, even under bending or twisting.

Corrosion Resistance:

Provides protection against oxidation and corrosion of the underlying conductor material.

Enamel winding wires are widely used in industrial production, household appliances and other industries.

The main properties and uses of various enamel winding wires are as follows:

1. UEW: direct welding; used for various machines, communication equipment, instruments, relays, small transformers, etc.;
2. UEWE: enamel coated copper wire has direct weldability and excellent winding linearity; it is used for small motors, deflection coils, etc.;
3. PVF: resistant to water-containing transformer oil, excellent resistance to humidity and heat; oil pressure transformers, underwater motors, closed motors, etc.;
4. PEW: used for various motors, transformers, etc.;
5. PEWN: excellent winding linearity and excellent resistance to water; used for various motors, transformers, etc.;
6. EIW: Excellent resistance to humidity and heat; used for machines, motors, high-voltage transformers, etc. with special requirements for heat resistance;
7. EIWH: excellent in winding, heat resistance, humidity and heat resistance; used for special motors, high-voltage transformers, power tools, etc.;
8. AIW: excellent heat resistance and chemical resistance; used for special motors, aircraft accessories, power tools, etc.;
9. FBWHC: Self-adhesive; used for deflection coils, high-voltage transformers, etc.

Conductor Materials

Copper:

Properties: High conductivity, excellent thermal and mechanical properties.

Uses: Most common; suitable for all general and high-performance applications.

Aluminum:

Properties: Lower conductivity than copper but lightweight and cost-effective.

Uses: Large transformers and motors where weight is a concern.

To choose the appropriate enamel winding wire for a specific application, consider many factors. If you have any questions about enameled wire, please contact us.