Technical Parameters & Ratings
IEC / ANSI CertifiedFactory Standard
| Rated Capacity | 25 MVA (25,000 kVA) |
|---|---|
| High Voltage | 110.0 kV |
| Low Voltage | 11.0 kV / customized |
| Frequency | 50 Hz / 60 Hz |
| Phase | Three Phase |
| Cooling Method | ONAN / ONAF optional |
| Vector Group | YNd11 / YNyn0 / customized |
| Tap Changer | On-load tap changer (OLTC) / Off-circuit optional |
| Tapping Range | +/-8 x 1.25% (OLTC) / +/-2 x 2.5% (OCTC) |
| Winding Material | Copper |
| Core Material | CRGO silicon steel, grain-oriented |
| Insulation Medium | Mineral insulating oil |
| Standard | IEC 60076 design reference |
| Installation | Outdoor substation / indoor GIS substation |
Application Scenarios
- Utility substation step-down at / for distribution networks
- Grid interconnection and power transmission projects in Africa and MENA
- Large industrial facility main power supply transformers
- EPC contractor packages for power plant auxiliary and grid connection
Key Features
- 25 MVA rated capacity for utility substation and grid applications
- high voltage class for sub-transmission and transmission grid interconnection
- ONAN standard cooling with ONAF upgrade option for higher ambient temperature sites
- On-load tap changer (OLTC) available for voltage regulation under load
- Full copper windings with CRGO grain-oriented silicon steel core for low losses
