China 110/66 kV power transformer manufactured by Rockwill with a low price and good quality. Supporting customization. It has exported to many countries like South Africa, Mozambique, Tanzania, Uganda, Ethiopia, etc.
have adopted series of important reforms on the 110kV level three-phase oil-immersed on-loadtap changing transformer referring material, process and structure. The transformer has the features of small size, light weight, high efficiency, low loss, low noise, reliable operation etc. which can reduce a large amount of power network loss and operation expense with significant economic benefits. It is suitable for power plant, substation, heavy section plant or enterprises etc.
1. Type: outdoor
2. Ambient temperature: max. temperature: +40℃; min. temperature: -30℃
3. Altitude: ≤1000m (temperature rise shall be corrected when＞1000m)
4. Relative humidity: ≤90% (25℃)
5. Installation place: without corrosive gas and apparent fouling.
110kVThree-phase Double-windingNLTCPowerTransformer
| Rated Capacity（KVA) | Voltage ratio | Vector group | No-load loss(KW) | load loss(KW) | No-load current(%) | Short circuit impedance(%) | |
| HV | LV | ||||||
| 6300 |
110±2*2.5%； 115±2*2.5%； 121±2*2.5%； |
6.3; 6.6; 10.5 |
YNd11 | 7.4 | 35 | 0.62 | 10.5 |
| 8000 | 8.9 | 42 | 0.62 | ||||
| 10000 | 10.5 | 50 | 0.58 | ||||
| 12500 | 12.4 | 59 | 0.58 | ||||
| 16000 | 15 | 73 | 0.54 | ||||
| 20000 | 17.6 | 88 | 0.54 | ||||
| 25000 | 20.8 | 104 | 0.5 | ||||
| 31500 | 24.6 | 123 | 0.48 | ||||
| 40000 | 29.4 | 148 | 0.45 | ||||
| 50000 | 35.2 | 175 | 0.42 | ||||
| 63000 | 41.6 | 208 | 0.38 | ||||
| 75000 |
13.8; 15.75; 18; 21 |
47.2 | 236 | 0.33 | 12~14 | ||
| 90000 | 54.4 | 272 | 0.3 | ||||
| 120000 | 67.8 | 337 | 0.27 | ||||
| 150000 | 80.1 | 399 | 0.24 | ||||
| 180000 | 90 | 457 | 0.2 | ||||
110kVThree-phase Three-windingNLTCPowerTransformer
| Rated Capacity（KVA) | Voltage ratio | Vector group | No-load loss(KW) | load loss(KW) | No-load current(%) | Short circuit impedance(%) | ||
| HV | LV | Step up | Step down | |||||
| 6300 |
110±2*2.5%； 115±2*2.5%； 121±2*2.5%； |
6.6; 11; 24 |
YNyn0d11 | 8.9 | 44 | 0.66 |
HV-MV:17.5~18.5; HV-LV:10.5; MV-LV:6.5 |
HV-MV:10.5; HV-LV:18~19; MV-LV:6.5 |
| 8000 | 10.6 | 53 | 0.62 | |||||
| 10000 | 12.6 | 62 | 0.59 | |||||
| 12500 | 14.7 | 74 | 0.56 | |||||
| 16000 | 17.9 | 90 | 0.53 | |||||
| 20000 | 21.2 | 106 | 0.53 | |||||
| 25000 | 24.6 | 126 | 0.48 | |||||
| 31500 | 29.4 | 149 | 0.48 | |||||
| 40000 | 34.8 | 179 | 0.44 | |||||
| 50000 | 41.6 | 213 | 0.44 | |||||
| 63000 | 49.2 | 256 | 0.4 | |||||
110kVThree-phase Double-windingOLTCPowerTransformer
| Rated Capacity（KVA) | Voltage ratio | Vector group | No-load loss(KW) | load loss(KW) | No-load current(%) | Short circuit impedance(%) | |
| HV | LV | ||||||
| 6300 | 110±8*1.25%； |
6.3; 6.6; 10.5; 21 |
YNd11 | 8 | 35 | 0.64 | 10.5 |
| 8000 | 9.6 | 42 | 0.64 | ||||
| 10000 | 11.3 | 50 | 0.59 | ||||
| 12500 | 13.4 | 59 | 0.59 | ||||
| 16000 | 16.1 | 73 | 0.55 | ||||
| 20000 | 19.2 | 88 | 0.55 | ||||
| 25000 | 22.7 | 104 | 0.51 | ||||
| 31500 | 27 | 123 | 0.51 | ||||
| 40000 | 32.3 | 156 | 0.46 | 12~18 | |||
| 50000 | 38.2 | 194 | 0.46 | ||||
| 63000 | 45.4 | 232 | 0.42 | ||||
110kV Three-phase Three-winding OLTC Power Transformer
| Rated Capacity（KVA) | Voltage ratio | Vector group | No-load loss(KW) | load loss(KW) | No-load current(%) | Short circuit impedance(%) | ||
| HV | MV | LV | ||||||
| 6300 | 110±8*1.25%； | 36 | 6.6;11;24 | YNyn0d11 | 9.6 | 44 | 0.76 |
HV-MV:10.5; HV-LV:18~19; MV-LV:6.5 |
| 8000 | 11.5 | 53 | 0.76 | |||||
| 10000 | 13.6 | 62 | 0.71 | |||||
| 12500 | 16.1 | 74 | 0.71 | |||||
| 16000 | 19.3 | 90 | 0.67 | |||||
| 20000 | 22.8 | 106 | 0.67 | |||||
| 25000 | 27 | 126 | 0.62 | |||||
| 31500 | 32.1 | 149 | 0.62 | |||||
| 40000 | 38.5 | 179 | 0.58 | |||||
| 50000 | 45.5 | 213 | 0.58 | |||||
| 63000 | 54.1 | 256 | 0.53 | |||||
66kV Three-phase PowerTransformerwith 0ff-loadTapChanger
| Rated power（KVA) | Hve(KV) | Tap(KV) | LV(KV) | Vector group | Short circuit impedance(%) | No-load loss(W) | On-load loss(%) | No-load current(%) | ||||
| The 9 type of loss | The 10 type of loss | The 11 type of loss | The 9 type of loss | The 10 type of loss | The 11 type of loss | |||||||
| 6300 |
63; 66; 69 |
±2*2.5% |
6.3; 6.6; 10.5; 11; 13.2; 15 |
YNd11 | 9 | 9.5 | 8.5 | 7.5 | 26 | 34 | 34 | 0.63 |
| 8000 | 11.4 | 10.2 | 9 | 42.8 | 40.4 | 40.4 | 0.63 | |||||
| 10000 | 13.5 | 12.1 | 12.1 | 50.4 | 47.6 | 47.6 | 0.75 | |||||
| 12500 | 15.9 | 14.2 | 12.6 | 59.9 | 56.5 | 56.5 | 0.53 | |||||
| 16000 | 19.1 | 17.1 | 15.1 | 73.53 | 69.5 | 69.5 | 0.49 | |||||
| 20000 | 22.6 | 20.3 | 17.9 | 89.1 | 84.2 | 84.2 | 0.49 | |||||
| 25000 | 26.7 | 23.9 | 21.1 | 105.3 | 99.5 | 99.5 | 0.42 | |||||
| 31500 | 31.8 | 28.4 | 25.1 | 126.9 | 120 | 120 | 0.42 | |||||
| 40000 | 38 | 34 | 30 | 148.5 | 140.3 | 140.3 | 0.39 | |||||
| 50000 | 44.9 | 40.1 | 35.4 | 184.5 | 174.3 | 174.3 | 0.39 | |||||
| 63000 | 53.3 | 47.7 | 42.1 | 222.3 | 210 | 210 | 0.39 | |||||
66kV Three-phase PowerTransformerwith On-loadTapChanger
| Rated power（KVA) | Hve(KV) | Tap(KV) | LV(KV) | Vector group | Short circuit impedance(%) | No-load loss(W) | On-load loss(%) | No-load current(%) | ||||
| The 9 type of loss | The 10 type of loss | The 11 type of loss | The 9 type of loss | The 10 type of loss | The 11 type of loss | |||||||
| 6300 |
63; 66; 69 |
±8*1.25% | 6.3；6.6；10.5；11；13.2；15 | YNd11 | 9 | 10.5 | 9.4 | 8.25 | 36 | 34 | 34 | 0.63 |
| 8000 | 12.5 | 11.2 | 9.83 | 42.8 | 40.4 | 40.4 | 0.63 | |||||
| 10000 | 14.7 | 13.1 | 11.6 | 50.4 | 47.6 | 47.6 | 0.75 | |||||
| 12500 | 17.2 | 15.4 | 13.6 | 59.9 | 56.5 | 56.5 | 0.53 | |||||
| 16000 | 20.6 | 18.5 | 16.3 | 73.53 | 69.5 | 69.5 | 0.49 | |||||
| 20000 | 24.3 | 21.8 | 19.2 | 89.1 | 84.2 | 84.2 | 0.49 | |||||
| 25000 | 28.6 | 25.6 | 22.6 | 105.3 | 99.5 | 99.5 | 0.42 | |||||
| 31500 | 33.9 | 30.4 | 26.8 | 126.9 | 120 | 120 | 0.42 | |||||
| 40000 | 40.4 | 36.2 | 31.9 | 148.5 | 140.3 | 140.3 | 0.39 | |||||
| 50000 | 47.8 | 42.6 | 38.6 | 184.5 | 174.3 | 174.3 | 0.39 | |||||
| 63000 | 56.3 | 50.4 | 44.4 | 222.3 | 210 | 210 | 0.39 | |||||
