Power transformers
110 / 132 / 220 kV Power Transformer
High-voltage grid transformers up to 40 MVA, engineered per project.
- 16–40 MVA
- 110–220 kV
- IEC 60076
Power transformers for transmission substations and large industrial or renewable connections: 16–40 MVA at 110, 132 or 220 kV, OLTC regulation, ONAF/OFAF cooling and optional online gas monitoring. Each unit is designed to your specification and witnessed tests.
ModelsXY-SZ11-110XY-SFZ11-220
- IEC 60076
- GB 1094
Highlights
- 16 – 40 MVA, 110 / 132 / 220 kV
- OLTC, YNd11 / YNyn0d11
- ONAF / OFAF cooling
- Factory acceptance tests witnessable
Key parameters
| Model | XY-SZ11-110 | XY-SFZ11-220 |
|---|---|---|
| Rated capacity | 16,000 – 40,000 kVA (larger on request) | |
| HV rated voltage | 110, 132, 220 kV | |
| LV rated voltage | 11, 33, 66 kV | |
| Tap changer | On-load (OLTC) | |
| Vector group | YNd11, YNyn0d11 | |
| Short-circuit impedance | 8.0 – 12.5% | |
| Cooling method | ONAF / OFAF | |
| Tank / enclosure | Conservator with radiators | |
| Protection & monitoring | Buchholz relay, WTI / OTI, pressure relief, bushing CTs, online DGA (option) | |
| Installation | Outdoor | |
| Standards | IEC 60076, GB 1094, GB/T 6451 | |
Standard ratings
| Rated capacityMVA | HV rated voltagekV | LV rated voltagekV | Cooling method | Tap changer | Short-circuit impedance% |
|---|---|---|---|---|---|
| 16 | 110 / 132 | 11 / 33 | ONAF | OLTC | 8.0 |
| 20 | 110 / 132 | 11 / 33 | ONAF | OLTC | 8.0 |
| 25 | 132 / 220 | 33 / 66 | ONAF / OFAF | OLTC | 10.0 |
| 31.5 | 132 / 220 | 33 / 66 | OFAF | OLTC | 10.0 |
| 40 | 132 / 220 | 33 / 66 | OFAF | OLTC | 12.5 |
Indicative standard values — non-standard voltages, ratings and cooling are engineered to order.
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Inquire about this product
110 / 132 / 220 kV Power Transformer
Typical reply within one working day.