31500kVA-420000kVA 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) | ||||||
| 31500 | 220±2×2.5% 242±2×2.5% |
6.3、6.6、10.5 | Ynd11 | 28 | 128 | 0.56 | 12~14 |
| 40000 | 32 | 149 | 0.56 | ||||
| 50000 | 39 | 179 | 0.52 | ||||
| 63000 | 46 | 209 | 0.52 | ||||
| 75000 | 10.5、13.8 | 53 | 237 | 0.48 | |||
| 90000 | 64 | 273 | 0.44 | ||||
| 120000 | 75 | 338 | 0.44 | ||||
| 150000 | 1.5、13.8、15.75、18、20 | 89 | 400 | 0.4 | |||
| 160000 | 93 | 420 | 0.39 | ||||
| 180000 | 102 | 459 | 0.36 | ||||
| 240000 | 128 | 538 | 0.33 | ||||
| 300000 | 154 | 641 | 0.3 | ||||
| 360000 | 15.75、18、20 | 173 | 735 | 0.3 | |||
| 370000 | 176 | 750 | 0.3 | ||||
| 400000 | 187 | 795 | 0.28 | ||||
| 420000 | 193 | 824 | 0.28 | ||||
The no-load loss values in the above parameter table are the Chinese national standard type 18 parameter values. The company can customize them according to the actual needs of users.
Notes:
1.Transformers with rated capacity less than 31500kVA and transformers with other voltage combinations are also available on request.
2.Transformers with low voltage of 35kV or 38.5kV can also be supplied according to the requirements.
3.Tapless structure is preferred. If required by operation, tap can be set.
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.
31500kVA-300000kVA three-phase three-winding
| 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) | Open pressure K | Depressurize | |||||
| 31500 | 220±2×2.5% 230±2×2.5% 242±2×2.5% |
69、115、121 | 6.3、6.6、10.5、21、36、37、38.5 | Ynyn od11 |
32 | 153 | 0.56 | High-medium(22~24) High-low(12~14) Medium-low(7~9) |
High-Medium(12~14) High-low(22~24) Medium-low(7~9) |
| 40000 | 38 | 183 | 0.5 | ||||||
| 50000 | 44 | 216 | 0.44 | ||||||
| 63000 | 52 | 257 | 0.44 | ||||||
| 90000 | 10.5、13.8、36、37、38.5 | 68 | 333 | 0.39 | |||||
| 120000 | 84 | 410 | 0.39 | ||||||
| 150000 | 100 | 487 | 0.33 | ||||||
| 180000 | 10.5、13.8、15.75、21、36、37、38.5 | 113 | 555 | 0.33 | |||||
| 240000 | 140 | 684 | 0.28 | ||||||
| 300000 | 166 | 807 | 0.24 | ||||||
Note:
1.The capacity allocation for load losses in the table is (100/100/100)%. The capacity allocation of the booster structure can be (100/50/100)%, and the capacity allocation of the step-down structure can be(100/50/100)% or (100/50/100)%.
2.Transformers with rated capacity less than 31500kVA and transformers with other voltage combinations can also be provided according to requirements.
3.Transformers with low voltage of 35kV can also be provided according to the requirements.
5.When the transformer annual average load rate is about 45%, the loss value in the table can be used to obtain the highest operating efficiency.
31500k VA-240000kVA low-voltage 66kV 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) | ||||||
| 31500 | 220±2×2.5% 230±2×2.5% |
63 66 69 |
Ynd11 | 30 | 143 | 0.71 | 12~14 |
| 40000 | 36 | 167 | 0.71 | ||||
| 50000 | 42 | 200 | 0.65 | ||||
| 63000 | 50 | 234 | 0.65 | ||||
| 90000 | 66 | 306 | 0.6 | ||||
| 120000 | 81 | 367 | 0.6 | ||||
| 150000 | 97 | 430 | 0.54 | ||||
| 150000 | 97 | 430 | 0.54 | ||||
| 180000 | 110 | 487 | 0.54 | ||||
| 240000 | 136 | 603 | 0.48 | ||||
Note:
1.Tapless construction is preferred.If required by operation, tap can be set.
2.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.
31500k VA-240000k VA three-phase three-winding unexcited voltage regulating autotransformer
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label | No load loss kW(9) | Load loss kW(9) | No-load current % | ||
| High voltage(kV) | Medium voltage(kV) | Low voltage(kV) | |||||
| 31500 | 220±2×2.5% 230±2×2.5% 242±2×2.5% |
115、121 | 6.6、10.5、21、36、37、38.5 | YNa0 d11 |
16 | 105 | 0.36 |
| 40000 | 18 | 129 | 0.36 | ||||
| 50000 | 22 | 153 | 0.32 | ||||
| 63000 | 26 | 181 | 0.32 | ||||
| 90000 | 32 | 249 | 0.27 | ||||
| 120000 | 10.5、13.8、15.75、18、21、36、37、38.5 | 39 | 307 | 0.27 | |||
| 150000 | 46 | 365 | 0.22 | ||||
| 180000 | 54 | 417 | 0.22 | ||||
| 240000 | 63 | 518 | 0.21 | ||||
| Boost combination | Short circuit impedance % | |||
| No load loss kW(9) | Load loss kW(9) | No-load current % | step-up voltage | step-down voltage |
| 16.0 | 89.0 | 0.32 | High-medium(12～14) High-low(8～12) Medium-low(14～18) |
High-Medium(8～10) High-low(28～34) Medium-low(18～24) |
| 16.0 | 108 | 0.32 | ||
| 19.0 | 129 | 0.27 | ||
| 22.0 | 154 | 0.27 | ||
| 29.0 | 211 | 0.22 | ||
| 35.0 | 259 | 0.22 | ||
| 42.0 | 308 | 0.21 | ||
| 48.0 | 349 | 0.21 | ||
| 57.0 | 454 | 0.16 | ||
The no-load loss values in the above parameter table are the Chinese national standard type 18 parameter values. The company can customize them according to the actual needs of users.
Note:
1.The capacity allocation of the booster structure is (100/50/100)%. The capacity allocation of the step-down structure is (100/100/50)%.
2.The value of the short circuit impedance in the table is 100% of the rated capacity.
3.Transformers with a low voltage of 35kV are also available upon request.
4.The tapless structure drawing is preferred. If required by operation, tap can be set.
5.When the transformer annual average load rate is about 40%, the loss value in the table can be used to obtain the highest operating efficiency.
31500kVA-240000kVA three-phase three-winding unexcited voltage regulating autotransformer
| Rated capacity (kVA) | Voltage combination and tap range | Boost combination | Buck combo | Short circuit impedance % | ||||||||
| High voltage(kV) | Medium voltage(kV) | Low voltage(kV) | Coupling group Label | No load loss (kW) | Load loss (kW) | No-load current % | No load loss (kW) | Load loss (kW) | No-load current % | Open pressure | Depressurize | |
| 31500 | 220±2×2.5% 230±2×2.5% 242±2×2.5% |
115、121 | 6.6、10.5、21、36、37、38.5 | Yna0d11 | 16 | 105 | 0.36 | 14 | 89 | 0.32 | High-medium 12~14 High-low 8~12 Medium-low 14~18 |
High-Medium 8~9 High-low 28~34 Medium-low 18~24 |
| 40000 | 18 | 129 | 0.36 | 16 | 108 | 0.32 | ||||||
| 50000 | 22 | 153 | 0.32 | 19 | 129 | 0.27 | ||||||
| 63000 | 26 | 181 | 0.32 | 22 | 154 | 0.27 | ||||||
| 90000 | 10.5、13.8、15.75、18、21、36、37、38.5 | 32 | 249 | 0.27 | 29 | 211 | 0.22 | |||||
| 120000 | 39 | 307 | 0.27 | 35 | 259 | 0.22 | ||||||
| 150000 | 46 | 365 | 0.22 | 42 | 308 | 0.21 | ||||||
| 180000 | 54 | 417 | 0.22 | 48 | 349 | 0.21 | ||||||
| 240000 | 63 | 518 | 0.21 | 57 | 454 | 0.16 | ||||||
Note:
1.Transformers with a low voltage of 35kV are also available upon request.
2.When the average annual load ratio of the transformer is about 50%, the loss value in the table can be used to obtain the highest operating efficiency.
Three-phase two-winding on-load voltage regulating power transformer with a voltage class of 220 kV and a capacity range from 31500 kVA to 240000 kVA.
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label | Boost combination | Short-Circuit Impedance (%) | ||||
| High voltage(kV) | Medium voltage(kV) | Low voltage(kV) | No load loss (kW) | Load loss (kW) | No-load current % | |||
| 31500 | 220、230 | ±4×1.25 ±6×1.25 ±8×1.25 |
6.3、6.6、10.5、21、36、37、38.5 | Ynd11 | 24 | 122 | 0.46 | 12~14 |
| 40000 | 29 | 142 | 0.46 | |||||
| 50000 | 34 | 170 | 0.42 | |||||
| 63000 | 40 | 199 | 0.42 | |||||
| 90000 | 10.5、21、36、37、38.5 | 51 | 259 | 0.36 | ||||
| 120000 | 63 | 321 | 0.36 | |||||
| 150000 | 74 | 380 | 0.33 | |||||
| 180000 | 86 | 436 | 0.3 | |||||
| 120000 | 66、69 | 65 | 320 | 0.36 | ||||
| 150000 | 77 | 374 | 0.33 | |||||
| 180000 | 90 | 428 | 0.3 | |||||
| 240000 | 112 | 532 | 0.24 | |||||
| According to user requirements, a transformer with a low voltage of 35 kV can be selected. Under the condition of meeting the operating requirements,the fewer the tap stages, the better. |
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Three-phase three-winding on-load voltage regulating power transformer with a voltage class of220 kV and a capacity range from 31500 kVA to 240000 kVA.
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label | Boost combination | Short-Circuit Impedance (%) | |||||
| H V (kV) | High voltage Tap Range(%) | M V (kV) | L V (kV) | No load loss (kW) | Load loss (kW) | No-load current % | |||
| 31500 | 220、230 | ±4×1.25 ±6×1.25 ±8×1.25 |
69、115、121 | 6.3、6.6、10.5、21、36、37、38.5 | Ynyn d11 |
28 | 145 | 0.5 | High-Medium 12~14 High-Low 22~24 Medium-Low 7~9 |
| 40000 | 33 | 174 | 0.48 | ||||||
| 50000 | 38 | 205 | 0.48 | ||||||
| 63000 | 45 | 244 | 0.44 | ||||||
| 90000 | 10.5、21、36、37、38.5 | 58 | 316 | 0.35 | |||||
| 120000 | 74 | 390 | 0.35 | ||||||
| 150000 | 86 | 463 | 0.31 | ||||||
| 180000 | 99 | 568 | 0.31 | ||||||
| 240000 | 123 | 704 | 0.28 | ||||||
Three-phase three-winding on-load voltage regulating autotransformer with a voltage class of 220 kV and a capacity range from 31500 kVA to 240000 kVA.
| Rated capacity (kVA) | Voltage combination and tap range | Coupling group Label | Boost combination | Short-Circuit Impedance (%) | |||||
| H V (kV) | High voltage Tap Range(%) | M V (kV) | L V (kV) | No load loss (kW) | Load loss (kW) | No-load current % | |||
| 31500 | 220、230 | ±4×1.25 ±6×1.25 ±8×1.25 |
115、121 | 6.3、6.6、10.5、21、36、37、38.5 | YNa0 d11 |
16 | 97 | 0.35 | High-Medium 8~11 High-Low 28~34 Medium-Low 18~24 |
| 40000 | 19 | 119 | 0.35 | ||||||
| 50000 | 22 | 142 | 0.31 | ||||||
| 63000 | 26 | 170 | 0.31 | ||||||
| 90000 | 10.5、21、36、37、38.5 | 32 | 222 | 0.26 | |||||
| 120000 | 41 | 277 | 0.26 | ||||||
| 150000 | 48 | 329 | 0.22 | ||||||
| 180000 | 54 | 378 | 0.22 | ||||||
| 240000 | 66 | 487 | 0.19 | ||||||
| The listed data is applicable to step-down structure products with a capacity distribution of (100/100/50)%. According to user requirements, a transformer with a low voltage of 35 kV can be selected. Under the condition of meeting the operating conditions,the fewer the tap stages,the better. |
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220kV class three-phase double-winding on-load voltage regulating power transformer according to the special requirements.
