SGOB High Electrical Conductivity 200kVA Copper Winding Transformer is a China export product for medium-voltage power distribution. Built with high-purity oxygen-free copper coils and optimized oil cooling instead of standard mixed-conductor windings, it delivers superior electrical efficiency, thermal stability and consistent conductivity while lowering resistive loss for continuous residential and industrial loads.
High Electrical Conductivity 200kVA Copper Winding Transformer supplied by SGOB is engineered for applications requiring stable high-current transmission with minimized energy loss.
Many standard 200kVA transformers in the market use conventional-grade copper conductors that may introduce higher resistive losses under long-term load conditions. In contrast, 200kVA Copper Winding Transformer is designed with a conductivity-first engineering approach.
Key improvements over conventional models:
Higher purity oxygen-free copper with improved electron mobility
Optimized winding geometry to reduce current density concentration
Reduced contact resistance through precision winding alignment
Improved heat dissipation paths inside coil structure
Lower long-term energy loss under continuous operation
This results in more stable voltage output and reduced operational energy waste.
The transformer core plays a critical role in efficiency performance. SGOB applies precision-controlled silicon steel processing to reduce magnetic losses.
Core design features:
Cold-rolled grain-oriented silicon steel with low hysteresis loss
Precision CNC cutting for uniform magnetic path distribution
Reduced no-load loss structure for improved standby efficiency
Optimized lamination stacking for lower vibration and noise
This ensures stable performance even under fluctuating load conditions.
The defining feature of High Electrical Conductivity 200kVA Copper Winding Transformer lies in its winding system.
Winding system advantages:
High-grade oxygen-free copper conductor for superior conductivity
Multi-layer cylindrical winding structure for balanced electric stress
Spiral oil duct design to accelerate internal heat transfer
Reinforced end-face support to improve mechanical stability
Improved short-circuit withstand capability through structural reinforcement
This design significantly reduces thermal hotspots compared with conventional winding systems.
The oil-immersed design plays a dual role in insulation and cooling.
Cooling performance advantages:
Continuous heat dissipation through natural oil circulation
Enhanced dielectric strength for insulation stability
Reduced thermal aging of winding insulation materials
Stable operation under long-duration load cycles
Compared with dry-type alternatives, oil-immersed systems offer stronger thermal endurance in heavy-duty applications.
| Item | Specification |
|---|---|
| Rated Capacity | 200 kVA |
| Transformer Type | Oil-immersed copper winding transformer |
| Winding Material | High electrical conductivity oxygen-free copper |
| Core Material | Cold-rolled grain-oriented silicon steel |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulation System | Oil-immersed high-strength insulation |
| No-load Loss | ≤0.34 kW (reference value, test report available) |
| Load Loss | ≤2.6 kW (reference value, test report available) |
| Impedance Voltage | 4% |
| Installation Type | Outdoor / Substation / Distribution network |
| Application Range | Industrial, commercial, residential, renewable energy |
SGOB applies strict material control to ensure consistent conductivity performance:
All materials are inspected under controlled incoming quality procedures before production.
Each unit of High Electrical Conductivity 200kVA Copper Winding Transformer undergoes a controlled manufacturing cycle:
This ensures stable performance consistency across export batches.
The 200kVA Copper Winding Transformer is widely applied in:
Its conductivity-focused design ensures stable operation in both continuous and peak-load environments.
| Performance Factor | Standard Copper Winding Transformer | SGOB High Conductivity 200kVA Model |
|---|---|---|
| Copper Quality | Conventional-grade copper | High-purity oxygen-free copper |
| Loss Level | Medium efficiency | Reduced resistive loss design |
| Heat Dissipation | Standard oil circulation | Optimized spiral oil duct system |
| Load Stability | General performance | Improved continuous load stability |
| Energy Efficiency | Moderate | Higher efficiency under long-term operation |
| Electrical Consistency | Variable under load fluctuation | Stable voltage output |
SGOB transformers, including 200kVA Copper Winding Transformer, are deployed in multiple international markets:
These environments require stable conductivity and strong thermal endurance performance.
Oxygen-free copper has higher purity (>99.95%) and lower electrical resistance, which reduces energy loss and improves thermal stability under continuous load.
1 unit. Sample orders are accepted for project validation.
Yes. Each unit includes no-load loss test, load loss test, partial discharge test, and insulation resistance report.
30–40 working days after deposit confirmation.
Please provide your primary voltage, secondary voltage, installation altitude, and ambient temperature.
High Electrical Conductivity 200kVA Copper Winding Transformer is engineered for users who prioritize electrical efficiency and long-term operational stability. By combining high-purity copper winding technology, optimized magnetic core design, and controlled oil-immersed cooling performance, SGOB delivers a transformer solution that reduces energy loss while improving conductivity reliability under continuous load conditions.
