Transformer Coils
Precision windings for maximum dielectric strength — HV/LV coils, foil, disc, and cast resin
Coil Manufacturing Capabilities
High-precision winding equipment · Full testing before delivery
HV Disc Windings
Excellent impulse voltage distribution, mechanically robust against short circuits.
- Copper or aluminum conductors
- Up to 35kV class
- Interleaved disc design available
LV Foil Windings
Low eddy loss, high axial strength, ideal for large current applications.
- Copper or aluminum foil
- Layer insulation with DMD/Nomex
- Excellent short-circuit strength
Cast Resin Coils
Vacuum cast epoxy, partial discharge <5pC, moisture-proof and fire-retardant.
- Class F/H insulation
- Ideal for dry-type transformers
- Maintenance-free operation
Quality Assurance
Partial Discharge Test
All coils tested for partial discharge — guaranteed <5pC at 1.5x voltage.
Inductance & Resistance
100% measurement of DC resistance and inductance before assembly.
Impulse Test
Full lightning impulse testing for HV coils per IEC 60076.
Need Coils for Your Transformer Production?
Custom designs available. Tell us your voltage and power requirements.
Contact Our Coil Team →