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220kV oil-immersed power transformer

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(1)reasonable construction: use modern computer technology to analyze the characteristic about electric, magnetic, force and thermal for transformer, and on this basis to design construction drawings, making product construction be more reasonable and completed.
(2) advanced performance: in addition to that product performance can meet relevant national standard, special design can also perform as per user requirement and PD level is obviously less than specified value of national standard.
(3) safe and reliable: Winding insulation structure, ampere-turn arrangement and cooling system are designed on basis of analysis for transformer electric, magnetic, force and thermal performance, improving transformer ability to withstand over-voltage and short-circuit current and the local overheating does not occur.
(4) high quality components: select high quality components from domestic or abroad as per user requirement, making product performance will be more reliable.
(5) worry-free for user: beautiful appearance, no leakage and free- untanking.

1、220kV , 31500kVA~180000kVA three-phase, two windings, and on-load voltage regulation power transformer

Rated power
(kVA)
Voltage combination and tap range vector group Short-circuit impendence(%) No-load loss
(kW)
On-load loss(kW) No-load current(%) Dimension (mm)
(L×W×H)
HV(kV) LV(kV)
31500 220±8×1.25% 6.3
6.6
10.5
11
35
37
38.5
YNd11 12-14 30 128 0.7 7200×5500×7100
40000 36 149 0.63 6900×6700×7200
50000 43 180 0.56 7400×7100×7320
63000 50 209 0.56 7250×7150×7330
90000 10.5 11
35
37
38.5
64 274 0.49 7700×7500×7340
120000 79 329 0.49 8600×7550×7400
150000 93 385 0.42 8650×7600×7450
180000 108 445 0.42 8700×8200×7500
120000 66
69
82 337 0.49 8650×7650×7400
150000 96 394 0.42 8750×7650×7450
180000 112 451 0.42 8750×8250×7550

Three-phase, two-winding and on-load voltage regulation power transformer

2、220kV , 31500kVA~240000kVA three-phase, three windings, and on-load voltage regulation
power transformer

Rated power (kVA) Voltage combination and tap range Vector group Short-circuit impendence(%) No-load loss(kW) On-load loss(kW) No-load current(%) dimension(mm)
(L×W×H)
HV(kV) MV(kV) LV(kV)
31500 220±8×1.25% 69
115
121
6.3
6.6
10.5
11
35
37
38.5
YNyn0d11 HV-MV 12-14 HV-LV 22-24 MV-LV 7-9 35 154 0.77 7300×6000×7200
40000 42 180 0.7 7400×7200×7250
50000 48 214 0.63 7450×7220×7260
63000 56 248 0.63 7500×7250×7300
90000 10.5?11
35
37
38.5
74 333 0.56 8700×7400×7100
120000 92 410 0.56 9700×7800×7200
150000 108 487 0.49 10000×8150×7400
180000 125 599 0.49 10500×8200×7450
240000 154 741 0.45 9800×7300×7500

Three-phase, three winding and on-load voltage regulation power transformer

3、220kV , 31500kVA~240000kVA three-phase, three windings, and on-load voltage regulation
autotransformer

Rated power (kVA) Voltage combination and tap range Vector group Short-circuit impedence(%) No-load loss(kW) On-load loss(kW) No-load current(%) dimension(mm)
(L×W×H)
HV(kV) MV(kV) LV(kV)
31500 220±8×1.25% 69
115
121
6.3
6.6
10.5
11
35
37
38.5
YNa0d11 HV-MV 8-10 HV-LV 28-34 MV-LV 18-24 20 103 0.56 7000×5800×7000
40000 24 125 0.56 7100×7000×7150
50000 29 149 0.47 7250×7100×7160
63000 34 180 0.47 7500×7250×7200
90000 10.5?11
35
37
38.5
41 235 0.42 8600×7300×7150
120000 51 293 0.42 9600×7700×7180
150000 61 347 0.35 9800×8000×7200
180000 68 398 0.35 10500×8000×7600
240000 83 513 0.3 9850×7900×7900

Three-phase, three winding and on-load voltage regulation autotransformer

4、220kV , 31500kVA~420000kVA three-phase, two windings, and no-load voltage regulation power transformer

Rated power(kVA) Voltage combination and tap range Vector group Short-circuit impendence(%) No-load loss(kW) On-load loss(kW) No-load current(%) dimension(mm)
(L×W×H)
HV(kV) LV(kV)
31500 220±2×2.5%
242±2×2.5%
6.3
6.6
10.5
11
YNd11 12-14 28 128 0.7 6750×5200×7100
40000 33 149 0.7 6800×5300×7200
50000 39 180 0.65 7200×6600×7250
63000 46 209 0.65 7350×6650×7250
75000 10.5
11
13.8
54 238 0.6 7400×6680×7260
90000 62 274 0.55 7500×7200×7270
120000 75 328 0.55 9600×7200×7100
150000 11
13.8
15.75
18
20
90 385 0.5 9650×7250×7150
160000 94 404 0.49 10400×8100×7300
180000 102 436 0.46 10500×8200×7400
240000 128 539 0.42 9800×7100×7400
300000 15.75
18
20
151 641 0.38 8800×6300×7400
360000 174 735 0.38 9300×7500×7500
370000 177 751 0.38 9400×7550×7520
400000 187 795 0.35 9700×7560×7540
420000 194 825 0.35 9800×7600×7760

Three-phase, two windings, and no-load voltage regulation power transformer

5、220kV , 31500kVA~300000kVA three-phase, three windings, and no-load voltage regulation
power transformer

Rated power (kVA) Voltage combination and tap range Vector group Short-circuit impendence(%) No-load loss(kW) On-load loss(kW) No-load current(%) dimension(mm)
(L×W×H)
HV (kV) MV(kV) LV(kV) Step-up voltage Step-down voltage
31500 220±2×2.5%
242±2×2.5%
69
115
121
6.3
6.6
10.5
11
35
37
38.5
YNyn0d11 HV-MV
22-24
HV-LV
12-14
MV-LV 7-9
HV-MV 12-14 HV-LV 22-24 MV-LV 7-9 32 154 0.7 6800×5700×7000
40000 38 180 0.63 6900×6900×7100
50000 45 214 0.56 7050×7050×7140
63000 53 248 0.56 7300×7150×7150
90000 10.5?11
35
37
38.5
69 333 0.49 8400×7200×7160
120000 85 410 0.49 9500×7500×7180
150000 11
13.8
15.75
35
37
38.5
100 487 0.42 9700×7800×7200
180000 114 556 0.42 10300×7900×7500
240000 141 684 0.35 9800×7900×7900
300000 166 808 0.3 9850×7850×7660

three-phase, three windings, and no-load voltage regulation power transformer

6、220kV , 31500kVA~240000kVA three-phase, three windings, and no-load voltage regulation
autotransformer

Rated power (kVA)) Voltage combination and tap range Vector grou Short-circuit impendence
(%)
Step-up voltage combination Step-down voltage combination dimension(mm)
(L×W×H)
HV(kV) MV(kV) LV(kV) Step-up voltage Step-down voltage No-load loss
(kW)
On-load loss (kW) No-load current (%) No-load loss(kW) On-load loss(kW) No-load current(%)
31500 220±2×2.5%

242±2×2.5%

115

121

6.3

10.5

11

35

37

38.5

YNa0

d11

HV-MV
12-14HV-LV
8-12
MV-LV 14-18
HV-MV
8-10
HV-LV
28-34
MV-LV 18-24
20 111 0.57 18 94 0.5 6800×6000×7200
40000 23 137 0.57 21 115 0.5 6900×7200×7250
50000 27 162 0.5 24 137 0.43 6950×7220×7260
63000 32 191 0.5 29 162 0.43 7200×7250×7300
90000 40 262 0.43 37 222 0.36 8200×7400×7100
120000 10.5?11

13.8

15.75

18

35

37

38.5

50 323 0.43 45 274 0.36 9200×7800×7200
150000 58 385 0.36 53 325 0.33 9900×8150×7400
180000 67 440 0.36 61 368 0.33 10100×8200×7450
240000 79 565 0.33 71 479 0.25

three-phase, three windings, and no-load voltage regulation autotransformer

7、220kV , 31500kVA~240000kVA, 66KV for LV, three-phase, two windings, and no-load voltage regulation power transformer

Rated power (kVA) Voltage combination and tap range Vector group Short-circuit impendence(%) No-load loss (kW) On-load loss (kW) No-load current(%) dimension(mm)
(L×W×H)
HV (kV) LV (kV)
31500 220±2×2.5% 63
66
69
YNd11 12-14 30 143 0.89 7100×5800×7100
40000 36 167 0.89 6800×6900×7200
50000 42 200 0.82 7200×7100×7300
63000 50 235 0.82 7200×7130×7310
90000 66 307 0.75 7800×7400×7240
120000 82 368 0.75 8500×7650×7260
150000 98 430 0.68 8550×7500×7280
180000 110 487 0.68 8600×8100×7280
240000 137 603 0.61 9600×7200×7320

66KV for LV, three-phase, two windings, and no-load voltage regulation power transformer

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