Standard ratings
| Rating | Voltage class | Construction |
|---|---|---|
| 40 MVA | 230 kV | Oil-immersed, three-phase |
| 100 MVA | 230 kV | Oil-immersed, three-phase |
| 150 MVA | 230 kV | Oil-immersed, three-phase |
| 180 MVA | 230 kV | Oil-immersed, three-phase |
| 240 MVA | 230 kV | Oil-immersed, three-phase |
| 300 MVA | 230 kV | Oil-immersed, three-phase |
Other ratings and voltage classes are available on request.
Scope of supply
- Insulating oil supplied with the transformer
- Online condition monitoring
- Tap changer, cooling stages, bushings and accessories configured to your specification
- Export crating for sea freight, with FOB, CIF or DDP delivery
Standards and testing
Units are designed and tested to IEC 60076. Where a project requires IEEE C57, the applicable requirements, factory test program and any witness testing are agreed and confirmed in the proposal. Test reports are supplied before shipment.
Applications
- Data center and powered-shell main substations
- Utility substation builds, upgrades and strategic spares
- Renewable and battery storage grid interconnection
- Generator step-up
What to include in a request
- Rating in MVA, including cooling stages (for example ONAN/ONAF)
- HV and LV voltages, frequency and vector group
- Impedance and basic insulation level (BIL)
- Tap changer type (on-load or de-energized) and tap range
- Loss or efficiency requirements and any loss evaluation
- Site conditions: altitude, ambient temperature, seismic zone
- Applicable standards and utility specification
- Quantity, delivery destination, Incoterm and required date