Products
110 kV power transformers
Oil-immersed transformers from 6.3 to 240 MVA, including generator step-up units whose low-voltage windings are matched to generator output voltages. The workhorse of renewable plant interconnection.
Range
| Voltage combination | 110 / 35 / 10.5 kV, or as required |
|---|---|
| Capacity | 6.3 to 240 MVA |
| Low-voltage winding for GSU duty | 6.3 / 6.6 / 10.5 / 21 kV |
| Vector group | YNd11 standard; others on request |
| Tap changing | on-load or off-circuit |
Generator step-up configuration
On wind, solar and storage projects the generator or inverter output voltage is rarely a standard distribution level. A 110 kV GSU with a 10.5 kV or 21 kV low-voltage winding connects the plant directly to the transmission network without an intermediate transformation stage. We build these as standard configurations, not as one-offs.
Testing
Routine tests on every unit, type tests on the model family. Impulse testing on our 1200 kV system. Partial discharge measurement against a ≤10 pC background at the Harbin plant. Test reports issued in English.
Typical applications
Renewable plant interconnection at 110 kV or 132 kV. Distribution substations. Industrial supply. Traction and infrastructure projects. Where a project uses 132 kV, we build to that level on request.