High-Quality 66kV Power Transformers | Reliable Performance & Custom Design
High Efficiency and Energy Saving, Stable Performance
Utilizing high-quality silicon steel sheets and advanced winding technology, our 66kV power transformers offer low no-load and load losses, ensuring high operating efficiency.
- Compliant with international standards (IEC, ANSI, GB) for long-term, high-load operation
- Equipped with intelligent monitoring systems for temperature control and oil level monitoring
- Designed for stable, long-term operation in demanding environments
Customizable for Various Applications
Our transformers can be tailored to meet specific project requirements:
- Custom capacity options (10MVA, 20MVA, etc.)
- Multiple cooling methods available (ONAN, ONAF)
- Flexible wiring configurations
- Specialized designs for outdoor/indoor installation, earthquake resistance, waterproofing, and corrosion resistance
Ideal for power transmission/distribution, renewable energy projects (wind/solar), and industrial applications (factories, mines).
Reliable Quality with Global Service Support
- Manufactured using fully automatic vacuum drying and oil filling processes
- Certified to ISO9001, CE, and CCC standards
- Available for third-party testing verification
- Global distribution with comprehensive after-sales support
Technical Specifications
| Rated Power (KVA) | High Voltage (HV) | Low Voltage (KV) | Connection Symbol | Short Circuit Impedance | No-load Loss (W) | On-load Loss (W) | No-load Current (%) |
| 6300 | 63 66 69 | 6.3 6.6 10.5 11 | YNd11 | 9 | 8250 | 34000 | 0.63 |
| 8000 | | | | | 9830 | 40400 | 0.63 |
| 10000 | | | | | 11600 | 47600 | 0.75 |
| 12500 | | | | | 13600 | 56500 | 0.53 |
| 16000 | | | | | 16300 | 69500 | 0.49 |
| 20000 | | | | | 19200 | 84200 | 0.49 |
| 25000 | | | | | 22600 | 99500 | 0.42 |
| 31500 | | | | | 26800 | 120000 | 0.42 |
| 40000 | | | | | 31900 | 140300 | 0.39 |
| 50000 | | | | | 38600 | 174300 | 0.39 |
| 63000 | | | | | 44400 | 210000 | 0.39 |
Key Features
- Low partial discharge for enhanced safety and longevity
- Minimized energy loss for improved efficiency
- Reduced noise operation for better environmental integration
- Lightweight design without compromising reliability
- Economical operation with environmentally friendly materials
Widely used in power plants, substations, and large industrial/mining enterprises. Developed using advanced domestic and international technologies with optimized core, winding, active parts, leads, and tank designs.
