Products
Transformers from 10 kV to 500 kV
Two product families, one engineering standard. Oil-immersed power transformers built in Harbin, and resin-insulated dry-type transformers built in Hai'an. Every unit is designed and tested to IEC 60076.
Oil-immersed power transformers
Three-phase and single-phase units from 10 kV to 500 kV, up to 600 MVA. On-load or off-circuit tap changing. Efficiency series S22, S20, S18 and S13. Low-voltage windings can be matched to generator output voltages for generator step-up duty.
Resin-insulated dry-type transformers
Cast-resin dry-type units from 30 kVA to 2500 kVA at 10 kV to 35 kV. Efficiency series SC(B)18, 14, 13, 12 and 11. Built at our Hai'an plant, where partial discharge background is ≤1 pC.
Range at a glance
| Voltage class | Construction | Range |
|---|---|---|
| 500 kV | oil-immersed | three-phase 120–600 MVA; single-phase 120–400 MVA |
| 330 kV | oil-immersed | 90–360 MVA |
| 220 kV | oil-immersed | 31.5–240 MVA |
| 110 kV | oil-immersed | 6.3–240 MVA |
| 66 kV | oil-immersed | 6.3–63 MVA |
| 35 kV | oil-immersed | 2–31.5 MVA |
| 10 / 20 kV | oil-immersed | 30–2500 kVA, Dyn11 or Yyn0 |
| 10–35 kV | dry-type | 30–2500 kVA, cast resin |
How to specify
The four inputs that decide most of the design are voltage class, capacity, site conditions and the standard you are building to. Send us those and we will come back with a configuration. If you have an inverter or PCS model, include it — the harmonic spectrum changes the sizing.
Built to your standard, not only ours
Our default design basis is the IEC 60076 series. We also build to IEEE C57, AS/NZS 60076 and GB standards where a project requires it. Test documentation is issued in English.