Sz11-M 10kV 20kv 35kV on-Load Regulating Oil-Immersed Power Transformer
Product specifications
Rated capacity: 5-31500kVA
Voltage: 10kV 20kV 35kV
Winding connection: Dyn11/ Yyn0
Maximum no-load losses (Po):–W
Maximum on-load losses(Pk): –W
Short circuit impedance(Uk ): –%
Introduction of SZ11-M 10kV 20kV 35kV On-Load Regulating Oil-Immersed Power Transformer
This product is designed for power systems and serves as the main transformer equipment in medium- and small-sized substations, providing power distribution and lighting for industrial and agricultural applications.
By adopting advanced technologies from both domestic and international sources, utilizing the latest materials, and applying optimized design, the transformer achieves a more rational structure with significantly enhanced electrical strength, mechanical strength, and heat dissipation performance.
Parameters of Sz11 oil-immersed transformers with capacity from 30kVA – 2500kVA and voltage 10kV
| Rated capacity(kVA) | Voltage | Maximum no-load losses (kW) | Maximum on-load losses(kW) | Short circuit impedance Uk (% ) |
| 30 | 0.1 | 0.52 | 4 | |
| 50 | 0.13 | 0.76 | 4 | |
| 63 | 0.15 | 0.91 | 4 | |
| 80 | 0.19 | 1.09 | 4 | |
| 100 | 0.22 | 1.31 | 4 | |
| 125 | 0.26 | 1.57 | 4 | |
| 160 | 0.31 | 1.91 | 4 | |
| 200 | 6.0 | 0.37 | 2.26 | 4 |
| 250 | 6.3 | 0.43 | 2.65 | 4 |
| 315 | 10 | 0.52 | 3.17 | 4 |
| 400 | 10.5 | 0.62 | 3.74 | 4 |
| 500 | 11 | 0.74 | 4.43 | 4 |
| 630 | 0.92 | 5.39 | 4.5 | |
| 800 | 1.08 | 6.52 | 4.5 | |
| 1000 | 1.31 | 8.97 | 4.5 | |
| 1250 | 1.50 | 11.13 | 4.5 | |
| 1600 | 1.85 | 12.61 | 4.5 | |
| 2000 | 2.23 | 14.35 | 4.5 | |
| 2500 | 2.50 | 15.63 | 4.5 |
Advantages of Three-Phase Oil-Immersed Transformer SZ11
The SZ11 on-load voltage regulating transformer allows manual or automatic voltage adjustment without the need for power interruption.
High and low voltage windings are wound on a high-strength insulating cylinder, enhancing the transformer’s short-circuit resistance.
Features low coil heating with strong overload capacity.
Offers low noise, reliable performance, and easy installation.
