Features
● Safe, flame-retardant, fireproof, pollution-free, and can be directly installed at the load center.
● Maintenance-free, easy to install, and low overall operating cost.
● Excellent moisture resistance; can operate normally at 100% humidity and can be put back into operation without pre-drying after shutdown.
● Low loss, low partial discharge, low noise, strong heat dissipation; can operate at 150% rated load under forced air cooling.
● Equipped with a complete temperature protection and control system, providing reliable protection for the safe operation of the transformer.
● High reliability. Research on products already in operation shows that reliability indicators have reached international advanced levels.
Structural Features
Foil Coil: The low-voltage winding uses a single section of copper foil, along with F-class turn insulation, wound on a dedicated low-voltage foil winding machine. The foil coil effectively solves the prominent problems of high short-circuit stress, ampere-turn imbalance, poor heat dissipation, and unstable winding helix angle and manual welding quality in low-voltage, high-current coil windings. Simultaneously, our company uses resin potting and curing at the winding ends for moisture and contamination prevention. The copper busbars are automatically welded using argon arc welding.
Temperature control device: The transformer uses a BWDK series signal thermometer. The temperature sensing element is embedded in the upper half of the low-voltage coil, which can automatically detect and cyclically display the operating temperature of each phase coil, and has over-temperature alarm and tripping functions.
Model and Meaning
SC(B)10 Series Resin Insulated Dry-Type Transformer
Rated Capacity (KVA) Voltage Combination Connection Group Number No-load Loss (W) Load Loss (W) No-load Current (%) Short-circuit Impedance (%)
High Voltage
(KV) High Voltage Tap Range Low Voltage (KV) 130℃(B) (100℃) 155℃(F) (120℃) 180℃(H) (145℃)
30 6
6.3
6.6
10
10.5
11 ±2.5%
±5% 0.4 Dyn11
Yyn0 190 670 710 760 2.0 4.0
50 270 940 1000 1070 2.0
80 370 1290 1380 1480 1.5
100 400 1480 1570 1690 1.5
125 470 1740 1850 1980 1.3
160 540 2000 2130 2280 1.3
200 ±2X2.5%
±5% 620 2370 2530 2710 1.1
250 720 2590 2760 2960 1.1
315 880 3270 3470 3730 1.0
400 980 3750 3990 4280 1.0
500 1150 4590 4880 5230 1.0
630 1340 5530 5880 6290 0.85
630 1300 5610 5960 6400 0.85 6.0
800 1520 6550 6960 7460 0.85
1000 1770 7650 8130 8760 0.85
1250 2090 9100 9690 10300 0.85
1600 2450 11000 11700 12500 0.85
2000 3050 13600 14400 15500 0.70
2500 3600 16100 17100 18400 0.70
1600 2450 1220 12900 13900 0.85 8.0
2000 3050 15000 15900 17100 0.70
2500 3600 17700 18800 20200 0.70
Rated Capacity (KVA)
Voltage Combination
Connection Group Number
No-load Loss (W)
Load Loss (W)
No-load Current (%)
Short-circuit Impedance (%)
High Voltage
(KV)
High Voltage Tap Range
Low Voltage (KV)
130℃ (B) (100℃)
155℃ (F) (120℃)
180℃ (H) (145℃)
30
6
6.3
6.6
10
10.5
11
±2.5%
±5%
0.4
Dyn11
Yyn0
190
670
710
760
2.0
4.0
50
270
940
1000
1070
2.0
80
370
1290
1380
1480
1.5
100
400
1480
1570
1690
1.5
125
470
1740
1850
1980
1.3
160
540
2000
213 0
2280
1.3
200
±2X2.5%
±5%
620
2370
2530
2710
1.1
250
720
2590
2760
2960
1.1
315
880
3270
3470
3730
1.0
400
980
3750
3990
4280
1.0
500
1150
4590
4880
5230
1.0
630
1340
5530
5880
6290
0.85
630
1300
5610 5960 6400 0.85 6.0 800 1520 6550 6960 7460 0.85 1000 1770 7650 8130 8760 0.85 1250 2090 9100 9690 10300 0.85 1600 2450 11000 11700 12500 0.85 2000 3050 13600 14400 15500 0.70 2500 3600 16100 17100 184 00
0.70
1600
2450
1220
12900
13900
0.85
8.0
2000
3050
15000
15900
17100
0.70
2500
3600
17700
18800
20200
0.70
Note: The load losses listed in the table are values for different insulation systems at the reference temperatures in parentheses. Load losses for other insulation systems not included in the table should be converted accordingly based on their respective reference temperatures, using the data for insulation systems at -155℃ (F) as a reference.
Note: Dimensions and weight are subject to change depending on requirements; the data in these two items are based on the manufacturer's specifications.
Data Sheet for 20kV Class 50kVA-2500kVA Unloaded Dry-Type Transformer
Rated Capacity (KVA) Voltage Combination Connection Group Number No-load Loss (W) Load Loss (W) No-load Current (%) Short-circuit Impedance (%)
High Voltage (KV) High Voltage Tap Range Low Voltage (KV) 130℃ (B) (100℃) 155℃ (F) (120℃) 180℃ (H) (145℃)
50 20
22 24 ±2.5%
±5%
0.4 Dyn11
Yyn0 340 1160 1230 1310 2.0 5.0
100 540 1870 1990 2130 1.8
160 670 2350 2470 3460 1.8
200 ±2X2.5%
±5% 730 2770 2940 3140 1.8
250 840 3220 3420 3660 1.8
315 970 3850 4080 4360 1.8
400 1150 4650 4840 5180 1.1
500 1350 5460 5790 6190 1.1
630 1530 6450 6840 7320 1.0
800 1750 7790 8260 8840 1.0
1000 2070 9220 9780 10400 0.85
1250 2380 10800 11500 12300 0.85
1600 2790 13000 13800 14800 0.85
2000 3240 15400 16300 17500 0.70 8.0
2500 3870 18200 19300 20700 0.70
2000 3240 16800 17800 19100 0.70
2500 3870 20000 21200 22700 0.70
Rated Capacity (KVA)
Voltage Combination
Connection Group Number
No-load Loss (W)
Load Loss (W)
No-load Current (%)
Short-circuit Impedance (%)
High Voltage KV) High Voltage Tap Range Low Voltage (KV) 130℃ (B) (100℃) 155℃ (F) (120℃) 180℃ (H) (145℃) 50 20 22 24 ±2.5% ±5% 0.4 Dyn11 Yyn0 340 1160 1230 1310 2.0 5.0 100 540 1870 1990 2130 1.8 160 670 2350 2470 3460 1.8 200 ±2X2.5% ±5% 730 2770 2940 3140 1.8 250 840 3220 3420 3660 1.8 315 970 3850 4080 4360 1.8 400 1150 4650 4840 5180 1.1 500 1350 5460 5790 6190
1.1
630
1530
6450
6840
7320
1.0
800
1750
7790
8260
8840
1.0
1000
2070
9220
9780
10400
0.85
1250
2380
10800
11500
12300
0.85
1600
2790
13000
13800
14800
0.85
2000
3240
15400
16300
17500
0.70
8.0
2500
3870
18200
19300
20700
0.70
2000
3240
16800
17800
19100
0.70
2500
3870
20000
21200
22700
0.70
Data Sheet for 35kV Class 50kVA-2500kVA Unloaded Dry-Type Transformer
Rated Capacity (KVA) Voltage Combination Connection Group No. No-load Loss (W) Load Loss (W) No-load Current (%) Short-circuit Impedance (%)
High Voltage (KV) High Voltage Tap Range Low Voltage (KV) 130℃ (B) (100℃) 155℃ (F) (120℃) 180℃ (H) (145℃)
50 35
36
37
38.5±2.5%
±5%
0.4Dyn11
Yyn0 450 1340 1420 1520 2.3 6.0
100 630 1970 2090 2230 2.0
160 0.790 2650 2810 3000 1.5
200±2X2.5%
±5% 0.880 3130 3320 3550 1.5
250 0.990 3580 3800 4060 1.3
315 1170 4250 4510 4820 1.3
400 1370 5100 5410 5790 1.1
500 1520 6270 6650 7110 1.1
630 1860 7250 7690 8230 1.0
800 2160 8600 9120 9760 1.0
1000 2430 9860 10400 11100 0.75
1250 2830 12000 12700 13600 0.75
1600 3240 14600 15400 16500 0.75
2000 3820 17200 18200 19500 0.75
2500 4450 20600 21800 23300 0.75
Rated Capacity (KVA)
Voltage Combination
Connection Group Number
No-load Loss (W)
Load Loss (W)
No-load Current (%)
Short-circuit Impedance (%)
High Voltage (KV)
High Voltage Tap Range
Low Voltage (KV)
130℃ (B) (100℃)
155℃ (F) (120℃)
180℃ (H) (145℃)
50
35
36
37
38.5
±2.5%
±5%
0.4
Dyn11
Yyn0
450
1340
1420
1520
2.3
6.0
100
630
1970
2090
2230
2.0
160
0.790
2650
2810
3000
1.5
200
±2X2.5% ±5%
0.880
3130
3320
3550
1.5
250
0.990
3580
3800
4060
1.3
315
1170
4250
4510
4820
1.3
400
1370
5100
5410
5790
1.1
500
1520
6270
6650
7110
1.1
630
1860
7250
7690
8230
1.0
800
2160
8 600
9120
9760
1.0
1000
2430
9860
10400
11100
0.75
1250
2830
12000
12700
13600
0.75
1600
3240
14600
15400
16500
0.75
2000
3820
17200
18200
19500
0.75
2500
4450
20600
21800
23300
0.75
