1. Device type:outdoor type
2. Ambient temperature: maximum temperature +40℃, minimum temperature -30℃
3. Altitude: 1000 meters (>1000 meters, temperature rise needs to be corrected)
4. Relative temperature:90%(25℃)
5. Installation site: no corrosive gas, no obvious dirt and other areas
110kV three-phase double-winding unexcited voltage regulating power transformer
| Rated capacity (kVA) |
Voltage combination and tap range | Coupling group Label |
No load loss kW(9) |
Load loss kW(9) |
No-load current% |
Short circuit impedance % |
|
| High voltage(kV) | Low voltage(kV) |
||||||
| 6300 | 110±2×2.5% 115±2×2.5% 121±2×2.5% |
6.3 6.6 10.5 |
YNd11 | 5.90 | 33.0 | 0.50 | 10.5 |
| 8000 | 7.10 | 40.0 | 0.50 | ||||
| 10000 | 8.40 | 48.0 | 0.46 | ||||
| 12500 | 9.90 | 56.0 | 0.46 | ||||
| 16000 | 12.0 | 69.0 | 0.43 | ||||
| 20000 | 14.1 | 84.0 | 0.43 | ||||
| 25000 | 16.6 | 99.0 | 0.40 | ||||
| 31500 | 19.7 | 117 | 0.38 | ||||
| 40000 | 23.5 | 141 | 0.36 | ||||
| 50000 | 28.2 | 166 | 0.34 | ||||
| 63000 | 33.3 | 198 | 0.30 | ||||
| 75000 | 13.8 15.75 18 21 |
37.8 | 224 | 0.26 | 12~14 | ||
| 90000 | 43.5 | 258 | 0.24 | ||||
| 120000 | 54.2 | 320 | 0.22 | ||||
| 150000 | 64.1 | 379 | 0.19 | ||||
| 180000 | 72.0 | 434 | 0.16 | ||||
Note:
1. -5% tap position for maximum current tap.
2. for the boost transformer, it is appropriate to use the tapless structure. If required byoperation, tap can be set.
3. when the transformer annual average load rate is between 45%-46%, the loss value in thetable can be used to obtain the highest operating efficiency.
6300kVA-63000kVA three-phase three-winding unexcited voltage regulating power transformer
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label | No load loss kW(9) | Load loss kW(9) | No-load current % | Short circuit impedance % | |
| High voltage(kV) | Low voltage(kV) | ||||||
| 6300 | 110±2×2.5% 115±2×2.5% 121±2×2.5% |
6.36.610.5 | YNd11 | 5.90 | 33.0 | 0.50 | 10.5 |
| 8000 | 7.10 | 40.0 | 0.50 | ||||
| 10000 | 8.40 | 48.0 | 0.46 | ||||
| 12500 | 9.90 | 56.0 | 0.46 | ||||
| 16000 | 12.0 | 69.0 | 0.43 | ||||
| 20000 | 14.1 | 84.0 | 0.43 | ||||
| 25000 | 16.6 | 99.0 | 0.40 | ||||
| 31500 | 19.7 | 117 | 0.38 | ||||
| 40000 | 23.5 | 141 | 0.36 | ||||
| 50000 | 28.2 | 166 | 0.34 | ||||
| 63000 | 33.3 | 198 | 0.30 | ||||
| 75000 | 13.8 15.75 18 21 |
37.8 | 224 | 0.26 | 12~14 | ||
| 90000 | 43.5 | 258 | 0.24 | ||||
| 120000 | 54.2 | 320 | 0.22 | ||||
| 150000 | 64.1 | 379 | 0.19 | ||||
| 180000 | 72.0 | 434 | 0.16 | ||||
6300kVA-63000kVA three-phase double-winding on-load voltage regulation power transformer
| Rated capacity(kVA) | Voltage combination and tap range | Coupling group Label |
No load loss kW(9) |
Load loss kW(9) |
No-load current % |
Short circuit impedance % |
|
| High voltage(kV) | Low voltage(kV） | ||||||
| 6300 | 110±8×1.25% | 6.3 6.6 10.5 21 |
YNd11 | 6.4 | 33 | 0.51 | 10.5 |
| 8000 | 7.7 | 40 | 0.47 | 10.5 | |||
| 10000 | 9 | 48 | 0.47 | 10.5 | |||
| 12500 | 10.7 | 56 | 0.47 | 10.5 | |||
| 16000 | 12.9 | 69 | 0.44 | 10.5 | |||
| 20000 | 15.4 | 84 | 0.44 | 10.5 | |||
| 25000 | 18.2 | 99 | 0.41 | 10.5 | |||
110KV Intelligent Three-Phase On-Load Voltage Regulation Power Transformer
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label |
No load loss kW(9) |
Load loss kW(9) |
No-load current % |
Short circuit impedance % |
|
| High voltage(kV) | Low voltage(kV) | ||||||
| 31500 | 110±8×1.25% | 6.3 | YNd11 | 21.6 | 117 | 0.41 | 10.5 |
| 40000 | 6.6 | 25.8 | 148 | 0.37 | 10.5~18 | ||
| 50000 | 10.5 | 30.6 | 184 | 0.37 | |||
| 63000 | 21 | 36.3 | 220 | 0.34 | |||
Note:
1.Load regulating transformer, temporarily provide buck structure products.
2.According to user requirements, can provide other voltage combination products.
3.-10% tap position is the maximum current tap.
4.When the transformer annual average load rate is between 45%-50%,the loss value in the table can be used to obtain the highest operating efficiency.
110KV Three-Phase Double-Winding Unexcited Voltage Regulating Power Transformer
| Rated capacity(kVA) | Voltage combination and tap range | Coupling group Label |
No load loss kW(9) |
Load loss kW(9) |
No-load current % |
Short circuit impedance % | ||
| High voltage(kV) | Medium voltage(kV) | Low voltage(kV) | ||||||
| 6300 | 110±8×1.25% | 36 37 38.5 |
6.3 6.6 10.5 21 |
YNyn0d11 | 7.70 | 42.0 | 0.61 | High-medium (10.5) High-Low (18～19) Medium-low (6.5) |
| 8000 | 9.20 | 50.0 | 0.61 | |||||
| 10000 | 10.9 | 59.0 | 0.57 | |||||
| 12500 | 12.9 | 70.0 | 0.57 | |||||
| 16000 | 15.4 | 86.0 | 0.54 | |||||
| 20000 | 18.2 | 101 | 0.54 | |||||
| 25000 | 21.6 | 120 | 0.50 | |||||
| 31500 | 25.7 | 142 | 0.50 | |||||
| 40000 | 30.8 | 170 | 0.46 | |||||
| 50000 | 36.4 | 202 | 0.46 | |||||
| 63000 | 43.3 | 243 | 0.42 | |||||
Note:
1.Load regulating transformer, temporarily provide buck structure products.
2.High,medium and low voltage winding capacity allocation is (100/100/100)%.
3.The connection group label can be YNd11y10 if required.
4.The -10% tap position is the maximum current tap.
5.According to user requirements, the medium voltage can be selected to be different from the voltage value in the table or set the tap.
6.When the transformer annual average load rate is about 47%, the loss value in the table can be used to obtain the highest operating efficiency.
110KV Grade Intelligent Three-Phase On-Load Voltage Regulation Power Transformer
6300kVA-63000kVA three-phase double-winding low-voltage 35kV
| Rated capacity (kVA) |
Voltage combination and tap range | Coupling group Label |
No load loss kW(9) |
Load loss kW(9) |
No-load current % |
Short circuit impedance % |
|
| High voltage(kV) | Low voltage(kV) | ||||||
| 6300 | 110±2×2.5% 115±2×2.5% 121±2×2.5% |
36 37 38.5 |
YNd11 | 6.40 | 35.0 | 0.54 | 10.5 |
| 8000 | 7.70 | 42.0 | 0.54 | ||||
| 10000 | 9.0 | 49.0 | 0.50 | ||||
| 12500 | 10.5 | 59.0 | 0.50 | ||||
| 16000 | 12.5 | 72.0 | 0.46 | ||||
| 20000 | 14.8 | 89.0 | 0.46 | ||||
| 25000 | 17.5 | 105 | 0.42 | ||||
| 31500 | 20.7 | 126 | 0.42 | ||||
| 40000 | 24.6 | 147 | 0.39 | ||||
| 50000 | 29.5 | 183 | 0.39 | ||||
| 63000 | 34.9 | 220 | 0.36 | ||||
Note:
1.-10% tap position is the maximum current tap
2.For the boost transformer, it is appropriate to use the tapless structure. If required by operation, tap can be set.
3.When the average annual load of the transformer is between 44%-47%, the loss value in the table can be used to obtain the highest operating efficiency.
Final Summary:
1.The no-load loss values in all the above parameter table are the Chinese National Standard type 18 parameter values.Our company can customize them according to the actual needs of users.
2.According to user requirements, can produce products outside the capacity of the table, its performance parameters depending on the requirements.
3.According to different operating environments, we can provide specially designed products.
4.The medium voltage can be selected to be different from the voltage value in the table or tap,high pressure tap to choose asymmetric voltage regulation tap.
5.Short circuit impedance can be selected different from the table median value.
6.The final size shall be subject to the drawing confirmation after the contract is signed.
● 110kV three-phase double winding on-load voltage regulating power transformer
● Different specifications of power transformers can be developed according to the special requirements of users.
