35kV grade oil-impregnated power transformer
Standard
IEC 60076, IEC 60296, IEC 60137, IEC 60599, GB/T 1094, GB/T 6451, IEEE C57 Series, ISO 9001, ISO 14001, ISO 45001
Warranty
18 months after commissioning
Lead Time
4 months
TESTING
Routine Tests
Performed on every transformer:
- Winding resistance measurement
- Transformer ratio test (TTR)
- Vector group verification
- No-load loss and current measurement
- Load loss measurement
- Short-circuit impedance measurement
- Applied voltage withstand test
- Induced voltage withstand test
- Insulation resistance test
- Oil dielectric strength test
- Leak and pressure tests
Type Tests
Typically performed on representative units:
- Temperature rise test
- Lightning impulse withstand test
- Sound level measurement
- Short-circuit withstand verification
Special Tests (Optional)
- Partial discharge measurement
- Switching impulse test
- Capacitance and Tan Delta test
- Frequency Response Analysis (FRA)
- Dissolved Gas Analysis (DGA)
- Zero-sequence impedance test
- OLTC functional testing
- Third-party witness testing by SGS, TÜV, Intertek, BV, or customer representatives
Product Features
High Energy Efficiency
- Available in low-loss and ultra-low-loss designs.
- Reduced no-load and load losses.
- Lower lifecycle operating costs.
Premium Magnetic Core
- High-permeability CRGO silicon steel core.
- Optimized step-lap core construction.
- Reduced magnetizing current and noise.
Robust Winding Design
- Copper or aluminum winding options.
- Excellent short-circuit withstand capability.
- Enhanced mechanical strength.
Reliable Insulation System
- Vacuum drying and vacuum oil filling.
- High dielectric strength.
- Long insulation life.
Advanced Cooling Performance
- ONAN and ONAF cooling options.
- Stable temperature rise under continuous loading.
- Suitable for utility and industrial duty.
Sealed Oil Preservation System
- Conservator or hermetically sealed designs available.
- Moisture and oxidation protection.
- Reduced maintenance requirements.
Grid and Renewable Energy Compatibility
Suitable for:
- Utility substations
- Solar power plants
- Wind farms
- Industrial facilities
- Mining operations
- Data centers
- Infrastructure projects