Dry Type Transformer
Industrial Transformers by Toptron
Toptron dry-type transformers are engineered to provide reliable, high-efficiency power solutions for industrial, commercial, and utility applications. Designed for safe, maintenance-friendly operation, these transformers deliver stable voltage regulation, low energy losses, and enhanced protection for sensitive equipment across diverse operational environments.
Unlike oil-immersed units, Toptron dry-type transformers use air as the primary cooling and insulating medium. This design ensures superior safety, minimal fire risk, excellent thermal performance, and long-term reliability, making them ideal for indoor installations, commercial buildings, and environments where oil-based transformers are impractical.
Dry-Type Transformer – Robust Design for Industrial Excellence
Manufactured using premium-grade raw materials and advanced production techniques, Toptron dry-type transformers feature high-quality CRGO electrical steel cores, precision-wound copper or aluminium conductors, and durable epoxy-encapsulated coils or ventilated enclosures. Each component is carefully engineered to minimize losses, improve efficiency, and ensure long-term operational reliability, making them ideal for indoor and sensitive environments.
Dry-Type Transformer – Technical Specifications
| Parameter | Specification Details |
|---|---|
| Transformer Type | Dry-Type Distribution / Power Transformer |
| Rated Capacity | 25 kVA to 5000 kVA (Custom ratings available) |
| Primary Voltage | Up to 33 kV |
| Secondary Voltage | 415 V / 433 V / As per requirement |
| Frequency | 50 Hz |
| Phase | Single Phase / Three Phase |
| Vector Group | Dyn11 / Yyn0 / Custom |
| Cooling Method | AN / AF / ANAF (Air Natural / Air Forced / Air Natural + Forced) |
| Insulation Medium | Air / Epoxy Resin |
| Winding Material | Electrolytic Grade Copper / Aluminium |
| Core Material | CRGO Electrical Steel |
| Temperature Rise | 50°C / 55°C / 65°C |
| Tap Changer | Off-Circuit Tap Changer / OLTC |
| Tapping Range | ±5% to ±10% |
| Impedance | As per IS / IEC standards |
| Enclosure | Ventilated / Epoxy Encapsulated / Indoor |
| Bushings | Porcelain / Polymer |
| Protection Devices | Temperature Indicators (WTI / OTI) |
| Efficiency | High Efficiency, Low Loss Design |
| Noise Level | As per IS / IEC norms |
| Standards | IS 11171 / IS 1180 / IS 2026 / IEC 60076 |
| Mounting | Floor Mounted / Skid Mounted |
| Testing | Routine, Type & Special Tests |
| Service Conditions | Designed for Continuous Industrial Operation in Harsh Environments |