Oil-immersed transformers
SBH15 Amorphous-Alloy Oil-Immersed Transformer
About 70% less no-load loss — energy savings every hour it is energised.
- 30–2,500 kVA
- 6–11 / 0.4 kV
- −70% P0
The amorphous-alloy core of the SBH15-M cuts no-load loss by roughly 70% compared with an S11 transformer of the same rating, making it the most efficient choice for rural grids, residential feeders and any lightly loaded network.
ModelsSBH15-M
- IEC 60076
- GB 1094
- GB 20052
- ISO 9001
Highlights
- No-load loss from 33 W (30 kVA) to 900 W (2,500 kVA)
- Amorphous-alloy wound core, low noise
- Fully sealed, maintenance-free tank
- Meets GB 20052 top efficiency grades
Key parameters
| Rated capacity | 30 – 2,500 kVA |
|---|---|
| HV rated voltage | 6, 6.3, 10, 10.5, 11 kV |
| LV rated voltage | 0.4 kV |
| Tapping range | ±5% or ±2×2.5% |
| Vector group | Dyn11 |
| Short-circuit impedance | 4.0% (≤500 kVA) · 4.5% (630–1,600 kVA) · 5.0% (2,000–2,500 kVA) |
| Core | Amorphous alloy |
| Windings | Copper or aluminium |
| No-load loss | ≈70% lower than S11 series |
| Cooling method | ONAN |
| Tank / enclosure | Fully sealed, corrugated fins |
| Installation | Indoor & outdoor |
| Standards | IEC 60076, GB 1094.1/2/3/5, GB/T 6451 |
Ratings & losses
| Rated capacitykVA | Short-circuit impedance% | No-load lossW | Load loss75 °CW | No-load current% |
|---|---|---|---|---|
| 30 | 4.0 | 33 | 630/600 | 1.50 |
| 50 | 4.0 | 43 | 910/870 | 1.20 |
| 63 | 4.0 | 50 | 1090/1040 | 1.10 |
| 80 | 4.0 | 60 | 1310/1250 | 1.00 |
| 100 | 4.0 | 75 | 1580/1500 | 0.90 |
| 125 | 4.0 | 85 | 1890/1800 | 0.80 |
| 160 | 4.0 | 100 | 2310/2200 | 0.60 |
| 200 | 4.0 | 120 | 2730/2600 | 0.60 |
| 250 | 4.0 | 140 | 3200/3050 | 0.60 |
| 315 | 4.0 | 170 | 3830/3650 | 0.50 |
| 400 | 4.0 | 200 | 4520/4300 | 0.50 |
| 500 | 4.0 | 240 | 5410/5150 | 0.50 |
| 630 | 4.5 | 320 | 6200 | 0.30 |
| 800 | 4.5 | 380 | 7500 | 0.30 |
| 1,000 | 4.5 | 450 | 10300 | 0.30 |
| 1,250 | 4.5 | 530 | 12000 | 0.20 |
| 1,600 | 4.5 | 630 | 14500 | 0.20 |
| 2,000 | 5.0 | 750 | 18300 | 0.20 |
| 2,500 | 5.0 | 900 | 21220 | 0.20 |
Load loss shown as Dyn11 / Yyn0. Gas relay and temperature controller fitted from 630 kVA. Final data per order test report.
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SBH15 Amorphous-Alloy Oil-Immersed Transformer
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