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Transformers / Oil-Immersed Transformer
Oil-Immersed Distribution Transformer (S22 / S20 / S13)
A three-phase oil-immersed distribution transformer for indoor and outdoor service, with high full-load efficiency and strong overload / high-temperature tolerance. Offered in S22 / S20 / S13 generations; the newer low-loss cores cut no-load loss for better lifecycle energy cost, suiting outdoor substations and capacities across the distribution range.
Key Specifications
InstallationIndoor / outdoor
GenerationsS22 / S20 / S13
Capacity Range30 – 4000 kVA
HV / LV Voltage6 – 10 / 0.4 kV
Short-circuit Impedance4 – 8 %
Product Features
- High efficiency & overload capacity
- Low-loss S22 / S20 / S13 cores
- Indoor or outdoor installation
- Multiple connection groups (incl. Yzn11)
- Suited to high-capacity / outdoor distribution