Product Features
Our transformer dry type series is engineered for excellence, making us one of the best dry type transformer manufacturers in the industry. Key features include:
• Fire Safety & Environmental Protection
Oil-free design eliminates fire and explosion risks, with self-extinguishing insulation materials. Ideal for hospitals, schools, data centers, and high-humidity environments.
• Advanced Temperature Management
Equipped with reliable temperature controller and optional forced air cooling (AF) system. Features automatic fan start at 100°C, stop at 80°C, over-temperature alarm at 130°C, and trip at 150°C for maximum protection.
• Superior Heat Dissipation
High-quality copper windings with axial cooling ducts between layers ensure excellent thermal performance. When load exceeds 65% or ambient temperature is high, the fan system reduces hotspot temperature rise and extends coil life.
• Robust Construction
Core made of high-permeability grain-oriented silicon steel with 45° full miter joints and steel strap clamping. Resin-coated surface provides moisture-proof, corrosion-resistant, and high-strength properties.
• High Mechanical & Electrical Strength
Windings use premium copper conductors with high-strength insulation composites matching copper's thermal expansion coefficient. Layer, section, and turn insulation deliver outstanding short-circuit withstand capability.
• Easy Installation & Maintenance
Simple, compact structure with attractive appearance. Protection degrees available as IP00, IP20, IP30. Low maintenance due to no oil handling.
• Energy Efficient & Quiet Operation
Low losses, reduced noise levels, and overload capacity up to 40-50% with AF cooling.
As a professional dry type transformer manufacturer and dry type transformer supplier, we ensure every unit undergoes full routine, type, and special tests before delivery, guaranteeing stable and reliable performance.
Specifications & Parameters
Our dry type transformer meets or exceeds IEC60076, GB1094, and GB/T10228 standards. Main technical parameters include:
| Category | Specification / Description |
| Capacity | 30KVA – 8000KVA (three-phase) |
| Voltage Class |
Up to 35kV and below (all common voltage levels) |
| Tapping Range | ±5% or ±2×2.5% or customized per user requirements |
| Connection Group | Dyn, Yyn, Yd |
| Frequency | 50 Hz or 60 Hz |
| Cooling Method | AN (Air Natural) or AF (Air Forced) – AF allows 40-50% increased capacity |
| Protection Degree | IP00, IP20, IP30, etc. |
| Insulation Class | F or H class |
| Impedance Voltage | Standard value or per customer request |
| Execution Standards | GB1094, GB/T10228, IEC60076 or customized CSA,CE,UL |
| Insulation Level | 10kV: Power frequency withstand 35kV, Impulse 75kV 20kV: Power frequency withstand 50kV, Impulse 125kV 35kV: Power frequency withstand 70kV, Impulse 170kV |
| Tapping Method | Off-circuit (no-load) tapping |
| Normal Service Conditions | Altitude ≤1000m, Ambient temperature ≤40°C, Sinusoidal voltage waveform, Symmetrical three-phase supply Special Conditions: Available on request (e.g., higher altitude or temperature) |
Packaging, Warranty & Certifications Packaging：
Strong, seaworthy wooden crates or export-standard packaging with moisture-proof and shock-resistant measures to ensure safe transportation.
Warranty：
Standard 12-18 months warranty (extendable). Comprehensive after-sales support including installation guidance and technical service.
Certifications & Testing：
Fully compliant with IEC60076 international standard, GB1094, and GB/T10228 Chinese national standards or customized CSA,CE,UL standards. All products undergo complete factory testing (routine, type, and special tests) to verify performance.
