The S13-M series represents our flagship oil-immersed distribution transformer. Featuring a cold-rolled silicon steel core and fully sealed corrugated tank, it delivers 30% lower no-load loss compared to the S11 series — making it the ideal choice for energy-efficient power distribution networks.
| Rated Voltage | 6kV, 10kV, 11kV, 20kV, 33kV, 35kV |
|---|---|
| Capacity Range | 30 kVA – 2500 kVA |
| Frequency | 50 Hz / 60 Hz |
| Cooling Method | ONAN (Natural Oil, Natural Air) |
| Core Material | Cold-Rolled Silicon Steel |
| Tank Type | Fully Sealed Corrugated Tank |
| Insulation Class | Class A (Oil-Paper Insulation) |
| Standard | IEC 60076 / GB 1094 |
| Connection Group | Dyn11 / Yyn0 |
| Tap Range | ±2×2.5% |