SCB10, SCB11 has a wide range of applications and is particularly suitable for places with high fire protection requirements, such as mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings, and all indoor power distribution systems.
Core
High-permeability grain-oriented silicon steel, 45° fully mitered stepped joints, square tube pull-plate structure, resin-coated for moisture/rust protection – low loss, low noise.
Safe & Eco-friendly
Non-combustible, fire-resistant, pollution-free – can be installed at load center.
Maintenance-free
Easy installation, low overall operating cost.
High moisture resistance
Operates normally at 100% humidity – no pre-drying required after shutdown.
Strong heat dissipation
Complete temperature protection control system – over-temperature alarm and trip functions.
Foil winding
Continuous copper foil winding, Class F insulation, resin-potted ends – solves short-circuit stress, ampere-turn imbalance, and poor heat dissipation.
High reliability: Proven reliability reaching international advanced level.
Operating Conditions
Installation altitude: Not exceeding 1000m above sea level;
Power supply voltage waveform: Approximately sinusoidal;
Symmetry of polyphase supply voltage: The supply voltage connected to the polyphase transformer shall be approximately symmetrical;
Ambient temperature: Maximum temperature +40℃; maximum daily average temperature +30℃; maximum annual average temperature +20℃; minimum temperature -30℃ (applicable to indoor transformers).
Epoxy Cast Dry-Type Transformer SCB10, SCB11
| Rated Capacity (kVA) | Voltage Combination & Tapping Range | Connection Symbol | Losses (120°C, kW) | No-Load Current (%) | Short-Circuit Impedance (%) | Weight (kg) | ||||
| HV (kV) | HV Tapping Range (%) | LV (kV) | No-Load Loss (W) | Load Loss (W) | % | Oil weight | Total Weight | |||
| 30 |
6 |
∓5% ∓2x2.5% |
0.4 | Yyn0 Dyn11 |
0.71 | 0.19 | 1.6 | 4 | 250 | 320 |
| 50 | 1 | 0.27 | 1.4 | 370 | 460 | |||||
| 63 | 1.38 | 0.37 | 1.2 | 460 | 550 | |||||
| 80 | 1.57 | 0.4 | 1.1 | 490 | 580 | |||||
| 100 | 1.85 | 0.47 | 1.0 | 570 | 680 | |||||
| 125 | 2.13 | 0.54 | 1.0 | 640 | 750 | |||||
| 160 | 2.52 | 0.62 | 0.9 | 775 | 890 | |||||
| 200 | 2.75 | 0.72 | 0.8 | 895 | 1030 | |||||
| 250 | 3.47 | 0.88 | 0.8 | 1100 | 1250 | |||||
| 315 | 3.99 | 0.98 | 0.7 | 1200 | 1350 | |||||
| 400 | 4.88 | 1.16 | 0.7 | 1460 | 1610 | |||||
| 500 | 5.87 | 1.34 | 0.6 | 1680 | 1840 | |||||
| 630 | 5.96 | 1.3 | 0.6 | 6 | 1800 | 1980 | ||||
| 800 | 6.95 | 1.52 | 0.5 | 2130 | 2310 | |||||
| 1000 | 8.13 | 1.77 | 0.45 | 2520 | 2720 | |||||
| 1250 | 9.69 | 2.09 | 0.45 | 3075 | 3300 | |||||
| 1600 | 11.73 | 2.45 | 0.45 | 3670 | 3900 | |||||
| 2000 | 14.45 | 3.32 | 0.4 | 4420 | 4670 | |||||
| 2500 | 17.17 | 4 | 0.4 | 5310 | 5580 | |||||
