Unlike the circular cross-section of conventional round enameled wire, flat enameled copper wire features a uniform rectangular cross-section design with precision-rounded corners. This design balances conductor electrical efficiency, insulation reliability, bendability, and winding compactness, making it a high-end winding material specifically developed for high-power, high-density, high-heat-dissipation, and high-durability electromagnetic winding applications.
The product strictly complies with the IEC 60317 International Electrotechnical Standard,the GB/T 6109.4 national standard, and the IATF 16949 automotive quality management system standard. Its dimensional accuracy, insulation consistency, mechanical properties, and electrical performance far exceed those of ordinary general-purpose electromagnetic wire.
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Application |
Operating Conditions |
Recommended Wire Characteristics |
Key Benefits |
|---|---|---|---|
|
New Energy Vehicle Drive Motors |
800V platforms, high-frequency SiC pulses, oil cooling, up to 20,000 rpm, −40°C to 180°C, vibration and shock |
220°C corona-resistant and oil-resistant flat enameled copper wire; high structural strength |
High slot fill factor, low losses, high temperature resistance, vibration resistance, increased power density |
|
High- & Low-Voltage Transformers |
Concentrated electric fields, dense windings, long-term voltage operation, heat accumulation |
200°C composite-insulated flat wire for high-power grid transformers; 180°C standard flat wire for residential distribution transformers |
Consistent insulation, low partial discharge, low losses, improved heat dissipation, grid-connection compliance |
|
Industrial High-Efficiency & Servo Motors |
Continuous 24-hour operation, variable-frequency control, precision motion, high-speed rotation |
Low-loss flat enameled copper wire with high structural stability |
Improved energy efficiency, lower temperature rise, reduced noise, stable speed performance |
|
Wind Power & Generator Sets |
Outdoor operation, temperature fluctuations, vibration, fatigue, grid harmonics |
Flat enameled copper wire with fatigue resistance, weather resistance, and low harmonic losses |
Long-term operating stability, reduced winding aging, controlled temperature rise, improved reliability |
|
Rail Transit & Specialized Industrial Equipment |
Severe vibration and shock, frequent load fluctuations, dust, humidity |
High-rigidity, vibration-resistant, damp-heat-resistant and impact-resistant flat wire |
Reliable operation under harsh conditions, mechanical stability, resistance to environmental stress |
|
Precision Industrial Control & Energy Storage |
High-frequency operation, parameter stability requirements, harmonic interference |
Low-loss flat wire with stable electrical parameters and interference-suppression capabilities |
Reduced losses, improved grid stability, harmonic suppression, support for energy storage and power-system applications |
Material: Oxygen-free electrolytic copper, purity ≥99.95%.
Electrical Performance: 100% IACS conductivity, low resistivity, high current-carrying capacity.
Mechanical Properties: High-temperature creep resistance, fatigue resistance, and deformation resistance.
Precision Forming: Controlled width-to-thickness ratio and fillet radius.
Application Suitability: Hairpin bending, tight winding, and high-voltage embedding.
Insulation Systems: Polyester, polyimide, polyamide-imide (PAI), and nano-corona-resistant composite insulation.
Thermal Classes: 155°C, 180°C, 200°C, and 220°C.
Three-Layer Structure:
Base Coat: Enhances adhesion to the conductor.
Middle Coat: Provides high-voltage resistance and primary insulation.
Top Coat: Improves wear resistance and aging resistance.
Uniform and dense varnish film.
Reduced pinholes, bubbles, and thickness variations.
High-voltage and pulse resistance.
High-temperature and hydrolysis resistance.
Vibration and wear resistance.