Features and Specifications
Coil transformers are precision-engineered devices featuring high-quality copper or aluminum windings. They are widely used in industrial automation, control systems, and specialized applications that demand stable voltage and current regulation. These transformers are compact, reliable, and designed for high efficiency, ensuring consistent output with reduced energy losses over time.
- ensures low losses and high efficiency.
- withstands short-circuit forces.
- prevents dielectric breakdown.
- designed to handle high operating temperatures.
- disc, helical, or foil winding depending on application.
- optimized with proper conductor arrangement.
- resistant to moisture, aging, and mechanical vibrations.
| Material | High-conductivity Copper (99.9% pure) or Aluminum |
|---|---|
| Insulation | Kraft paper, Nomex, pressboard, or enamel coating (depending on design) |
| Windings Material | Cu/Al |
| Types of Windings | HV/LV Coil |
| Winding Configuration | Helical, Layer, Disc, or Foil winding |
| Operating Voltage Range | LV: 415V – 33kV HV: 11kV – 765kV |
| Frequency | 50 Hz / 60 Hz |
| Cooling | ONAN, ONAF, OFAF, or ODAF |
| Applicable Standards | IEC 60076, IS 2026, ANSI/IEEE , etc. |
Technical Specifications
| Parameter | Value |
|---|---|
| Winding Material | Electrolytic Copper (≥99.9% purity) |
| Insulation Material | Kraft Paper, Pressboard, Nomex, or Epoxy Resin |
| Thermal Class | Class A (105°C), Class B (130°C), Class F (155°C), or Class H (180°C) |
| Operating Voltage | LV: 415 V – 33 kV 11 kV – 765 kV |
| Conductor Type | Round/Rectangular Strips, Enamel-coated or Paper-insulated |
| Winding Type | Helical / Disc / Layer (as per design) |
| Cooling Method | Compatible with ONAN, ONAF, OFAF, ODAF |
| Frequency | 50 Hz / 60 Hz |
| Short-Circuit Strength | High Mechanical Strength to withstand electrodynamic forces |
| Losses | Optimized for Low Eddy Current and Hysteresis Losses |
| Efficiency | Typically 98% – 99.5% (depending on transformer rating) |
| Applicable Standards | IEC 60076, IS 2026, ANSI/IEEE Standards |