Customization: | Available |
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Application: | Power |
Phase: | Three |
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The S-M series three-phase oil-immersed transformer is ingeniously designed with a fully oil-filled, sealed corrugated oil tank. Its shell adapts to the oil's expansion through its own elasticity, perfectly balancing heat dissipation needs. This innovation embodies high efficiency and minimal loss characteristics that
translate into substantial power savings and reduced operational costs, making it an ideal choice for power plants, substations, industrial zones, mining enterprises, ports, airports, and other eco-conscious environments.
Meets Standards: IEC60076-1, IEC60076-2, IEC60076-3, IEC60076-5, IEC60076-10.
1. Optimal ambient temperature range: max +40°C, min -25ºC.
2. Peak monthly temperature: +30ºC, annual peak average: +20ºC.
3. Maximum operational altitude: 1000m above sea level.
4. Power supply voltage should mimic a sine wave closely.
5. Ensure three-phase supply voltage remains largely symmetrical.
6. Load current's total harmonic content must be under 5% of rated value.
7. Suitable for deployment indoors and outdoors.
1. Boasts high efficiency, low loss, and a whisper-quiet operation.
2. Exhibits robust mechanical strength, even ampere-turn distribution, and formidable short-circuit resistance.
3. Exceptional low no-load and load loss performance.
4. Compact design, dependable operation, extended lifespan, and maintenance-free.
Structure
Iron core:
Iron core:
Crafted from premium, high-performance, high-permeability silicon steel, the iron core ensures minimal no-load loss.
High/low voltage winding:
500KVA and below employ a layer type low-voltage winding, while 630KVA and above use a novel spiral type.
These windings boast high mechanical strength, balanced ampere turn distribution, and robust short-circuit resistance.
Fully sealed structure:
This product showcases a fully sealed design. The vacuum oil filling process is meticulously employed, thoroughly eliminating transformer moisture, securing the isolation of transformer oil from atmospheric air, forestalling oil aging, and enhancing transformer reliability.
Positioning structure:
The product's body is equipped with a sophisticated positioning structure to avert displacement during transit, and all fasteners are meticulously designed for stability.
Fitted with durable fastening nuts, our product guarantees steadfast stability. These nuts are designed to prevent any loosening of the fasteners, ensuring reliable performance during long-term operations.
Oil Tank:
Our cutting-edge oil tank features a robust corrugated design that boasts a streamlined process. It provides exceptional mechanical strength and superior welding integrity, significantly minimizing leakage risks. Thanks to the oil's excellent fluidity, the product's heat dissipation capability is greatly enhanced.
Additional Configuration:
Enhanced with a pressure relief valve and a signal thermometer, this configuration ensures the steadfast, safe operation of the transformer.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Yzn11 |
130 | 630/600 | 2.3 | 4 | 745 | 530 | 890 | 280 |
50 | 170 | 910/870 | 2 | 790 | 560 | 940 | 365 | |||||
63 | 200 | 1090/1040 | 1.9 | 820 | 570 | 950 | 425 | |||||
80 | 250 | 1310/1250 | 1.9 | 850 | 580 | 1000 | 485 | |||||
100 | 290 | 1580/1500 | 1.8 | 900 | 620 | 1010 | 540 | |||||
125 | 340 | 1890/1800 | 1.7 | 880 | 630 | 1050 | 610 | |||||
160 | 400 | 2310/2200 | 1.6 | 950 | 690 | 1120 | 710 | |||||
200 | 480 | 2730/2600 | 1.5 | 990 | 730 | 1200 | 835 | |||||
250 | 560 | 3200/3050 | 1.4 | 1180 | 700 | 1200 | 970 | |||||
315 | 670 | 3830/3650 | 1.4 | 1230 | 760 | 1250 | 1125 | |||||
400 | 800 | 4520/4300 | 1.3 | 1260 | 800 | 1300 | 1310 | |||||
500 | 960 | 5410/5150 | 1.2 | 1400 | 900 | 1320 | 1530 | |||||
630 | Dyn11 Yyn0 Yzn11 |
1200 | 6200 | 1.1 | 4.5 | 1530 | 940 | 1350 | 1890 | |||
800 | 1400 | 7500 | 1 | 1580 | 1000 | 1420 | 2185 | |||||
1000 | 1700 | 10300 | 1 | 1770 | 1180 | 1450 | 2480 | |||||
1250 | 1950 | 12000 | 0.9 | 1920 | 1290 | 1430 | 3020 | |||||
1600 | 2400 | 14500 | 0.8 | 1990 | 1340 | 1620 | 3550 | |||||
2000 | 3000 | 17100 | 0.7 | 5 | 1950 | 1680 | 2100 | 4530 | ||||
2500 | 3300 | 23200 | 0.7 | 2020 | 1710 | 2100 | 5030 |
Note 1: For transformers rated at 500kVA and below, utilize the load loss values above the diagonal line for Dyn11 or Yzn11 coupling groups. For Yyn0 coupling groups, apply the values below the line.
Note 2: Optimal operational efficiency is achieved when the transformer's average load rate is within 35% to 40%, utilizing the provided loss values in the table.
Overall and Mounting Dimensions (mm):
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Yzn11 |
100 | 630/600 | 1.5 | 4 | 690 | 510 | 920 | 275 |
50 | 130 | 910/870 | 1.3 | 730 | 510 | 960 | 340 | |||||
63 | 150 | 1090/1040 | 1.2 | 750 | 550 | 1000 | 385 | |||||
80 | 180 | 1310/1250 | 1.2 | 790 | 620 | 1020 | 450 | |||||
100 | 200 | 1580/1500 | 1.1 | 790 | 700 | 1040 | 520 | |||||
125 | 240 | 1890/1800 | 1.1 | 840 | 800 | 1070 | 625 | |||||
160 | 280 | 2310/2200 | 1 | 1070 | 670 | 1130 | 695 | |||||
200 | 340 | 2730/2600 | 1 | 1140 | 750 | 1140 | 795 | |||||
250 | 400 | 3200/3050 | 0.9 | 1200 | 800 | 1190 | 955 | |||||
315 | 480 | 3830/3650 | 0.9 | 1300 | 860 | 1210 | 1085 | |||||
400 | 570 | 4520/4300 | 0.8 | 1380 | 900 | 1240 | 1290 | |||||
500 | 680 | 5410/5100 | 0.8 | 1450 | 950 | 1300 | 1590 | |||||
630 | Dyn11 Yyn0 Yzn11 |
810 | 6200 | 0.6 | 4.5 | 1500 | 970 | 1360 | 1850 | |||
800 | 980 | 7500 | 0.6 | 1660 | 1140 | 1400 | 2210 | |||||
1000 | 1150 | 10300 | 0.6 | 1690 | 1190 | 1530 | 2570 | |||||
1250 | 1360 | 12000 | 0.5 | 1760 | 1230 | 1600 | 3115 | |||||
1600 | 1640 | 14500 | 0.5 | 1800 | 1250 | 1660 | 3520 | |||||
2000 | 1940 | 18300 | 0.4 | 5 | 1930 | 1360 | 1490 | 4060 | ||||
2500 | 2290 | 21200 | 0.4 | 2080 | 1360 | 1570 | 5105 |
Note 1: For transformers with a rated capacity of 500kVA or less, the load loss figures above the diagonal line apply to Dyn11 or Yzn11 coupling groups; those below apply to Yyn0 coupling groups.
Note 2: Achieve maximum operational efficiency when the transformer's average annual load rate is between 35% and 40%, using the loss values from the table.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Yzn11 |
80 | 630/600 | 1.5 | 4 | 685 | 490 | 860 | 260 |
50 | 100 | 910/870 | 1.3 | 725 | 520 | 955 | 365 | |||||
63 | 110 | 1090/1040 | 1.2 | 750 | 535 | 970 | 415 | |||||
80 | 130 | 1310/1250 | 1.2 | 770 | 565 | 985 | 465 | |||||
100 | 150 | 1580/1500 | 1.2 | 800 | 595 | 1000 | 545 | |||||
125 | 170 | 1890/1800 | 1.1 | 815 | 670 | 1010 | 585 | |||||
160 | 200 | 2310/2200 | 1.1 | 1015 | 645 | 1055 | 695 | |||||
200 | 240 | 2730/2600 | 1 | 1020 | 650 | 1115 | 810 | |||||
250 | 290 | 3200/3050 | 1 | 1140 | 730 | 1120 | 930 | |||||
315 | 340 | 3830/3650 | 0.9 | 1195 | 785 | 1175 | 1075 | |||||
400 | 410 | 4520/4300 | 0.9 | 1265 | 855 | 1195 | 1255 | |||||
500 | 480 | 5410/5100 | 0.8 | 1325 | 915 | 1240 | 1435 | |||||
630 | Dyn11 Yyn0 Yzn11 |
570 | 6200 | 0.8 | 4.5 | 1465 | 960 | 1295 | 1880 | |||
800 | 700 | 7500 | 0.6 | 1515 | 995 | 1340 | 2145 | |||||
1000 | 830 | 10300 | 0.6 | 1605 | 1095 | 1460 | 2455 | |||||
1250 | 970 | 12000 | 0.5 | 1685 | 1145 | 1485 | 2840 | |||||
1600 | 1170 | 14500 | 0.5 | 1775 | 1225 | 1580 | 3310 | |||||
2000 | 1550 | 18300 | 0.4 | 5 | 1855 | 1265 | 1600 | 3960 | ||||
2500 | 1830 | 21200 | 0.4 | 1885 | 1305 | 1780 | 4980 |
Note 1: For transformers with rated capacities of 500kVA or less, refer to the load loss values above the diagonal for Dyn11 or Yzn11, and below for Yyn0 coupling groups.
Note 2: Peak operational efficiency is obtained by utilizing the table's loss value, assuming an average annual load rate between 35% and 40%.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Yzn11 |
80 | 505/480 | 1.5 | 4 | 785 | 710 | 880 | 370 |
50 | 100 | 730/695 | 1.3 | 800 | 730 | 940 | 480 | |||||
63 | 110 | 870/830 | 1.2 | 815 | 720 | 970 | 535 | |||||
80 | 130 | 1050/1000 | 1.2 | 830 | 740 | 990 | 580 | |||||
100 | 150 | 1260/1200 | 1.1 | 875 | 790 | 1010 | 705 | |||||
125 | 170 | 1510/1440 | 1.1 | 875 | 770 | 1050 | 775 | |||||
160 | 200 | 1850/1760 | 1 | 935 | 820 | 1140 | 975 | |||||
200 | 240 | 2180/2080 | 1 | 995 | 870 | 1140 | 1140 | |||||
250 | 290 | 2560/2440 | 0.9 | 995 | 900 | 1180 | 1240 | |||||
315 | 340 | 3060/2920 | 0.9 | 1030 | 880 | 1250 | 1425 | |||||
400 | 410 | 3610/3440 | 0.8 | 1075 | 910 | 1270 | 1635 | |||||
500 | 480 | 4330/4120 | 0.8 | 1120 | 930 | 1320 | 1950 | |||||
630 | Dyn11 Yyn0 Yzn11 |
570 | 4960 | 0.6 | 4.5 | 1165 | 950 | 1350 | 2150 | |||
800 | 700 | 6000 | 0.6 | 1210 | 1050 | 1390 | 2515 | |||||
1000 | 830 | 8240 | 0.6 | 1520 | 1020 | 1450 | 2635 | |||||
1250 | 970 | 9600 | 0.5 | 1630 | 1090 | 1540 | 3210 | |||||
1600 | 1170 | 11600 | 0.5 | 1680 | 1150 | 1600 | 3905 | |||||
2000 | 1550 | 14600 | 0.4 | 5 | 1890 | 1300 | 1600 | 4130 | ||||
2500 | 1830 | 16900 | 0.4 | 1990 | 1360 | 1700 | 5250 |
Note 1: Load loss values for transformers rated at 500kVA and below are applicable above the diagonal for Dyn11 or Yzn11 and below for Yyn0 coupling groups.
Note 2: To achieve peak operational efficiency, maintain the transformer's average annual load rate between 35% and 40%, applying the loss values from the table.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Dyn5 |
70 | 505 | 1.2 | 4 | 785 | 710 | 880 | / |
50 | 90 | 730 | 1.04 | 800 | 730 | 940 | / | |||||
80 | 115 | 1050 | 0.96 | 830 | 740 | 990 | / | |||||
100 | 135 | 1265 | 0.88 | 875 | 790 | 1010 | / | |||||
125 | 150 | 1510 | 0.88 | 875 | 770 | 1050 | / | |||||
160 | 180 | 1850 | 0.8 | 935 | 820 | 1140 | / | |||||
200 | 215 | 2185 | 0.8 | 995 | 870 | 1140 | / | |||||
250 | 260 | 2560 | 0.72 | 995 | 900 | 1180 | / | |||||
315 | 305 | 3065 | 0.72 | 1030 | 880 | 1250 | / | |||||
400 | 370 | 3615 | 0.64 | 1075 | 910 | 1270 | / | |||||
500 | 430 | 4330 | 0.64 | 1120 | 930 | 1320 | / | |||||
630 | 510 | 4960 | 0.48 | 4.5 | 1165 | 950 | 1350 | / | ||||
800 | 630 | 6000 | 0.48 | 1210 | 1050 | 1390 | / | |||||
1000 | 745 | 8240 | 0.48 | 1520 | 1020 | 1450 | / | |||||
1250 | 870 | 9600 | 0.4 | 1630 | 1090 | 1540 | / | |||||
1600 | 1050 | 11600 | 0.4 | 1680 | 1150 | 1600 | / | |||||
2000 | 1225 | 14640 | 0.32 | 5 | 1890 | 1300 | 1600 | / | ||||
2500 | 1440 | 14840 | 0.32 | 1990 | 1360 | 1700 | / |
Note 1: For transformers rated at 500kVA and below, apply load loss values above the diagonal for Dyn11 or Yzn11, and below for Yyn0 coupling groups.
Note 2: Maximize operational efficiency by maintaining the transformer's average annual load rate between 35% and 40%, utilizing the table's loss value.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
30 | 6 6.3 10 10.5 11 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Dyn5 |
65 | 455 | 1.2 | 4 | 785 | 710 | 880 | / |
50 | 80 | 655 | 1.04 | 800 | 730 | 940 | / | |||||
80 | 105 | 945 | 0.96 | 830 | 740 | 990 | / | |||||
100 | 120 | 1140 | 0.88 | 875 | 790 | 1010 | / | |||||
125 | 135 | 1360 | 0.88 | 875 | 770 | 1050 | / | |||||
160 | 160 | 1665 | 0.8 | 935 | 820 | 1140 | / | |||||
200 | 190 | 1970 | 0.8 | 995 | 870 | 1140 | / | |||||
250 | 230 | 2300 | 0.72 | 995 | 900 | 1180 | / | |||||
315 | 270 | 2760 | 0.72 | 1030 | 880 | 1250 | / | |||||
400 | 330 | 3250 | 0.64 | 1075 | 910 | 1270 | / | |||||
500 | 385 | 3900 | 0.64 | 1120 | 930 | 1320 | / | |||||
630 | 460 | 4460 | 0.48 | 4.5 | 1165 | 950 | 1350 | / | ||||
800 | 560 | 5400 | 0.48 | 1210 | 1050 | 1390 | / | |||||
1000 | 665 | 7415 | 0.48 | 1520 | 1020 | 1450 | / | |||||
1250 | 780 | 8640 | 0.4 | 1630 | 1090 | 1540 | / | |||||
1600 | 940 | 10440 | 0.4 | 1680 | 1150 | 1600 | / | |||||
2000 | 1085 | 13180 | 0.32 | 5 | 1890 | 1300 | 1600 | / | ||||
2500 | 1280 | 13360 | 0.32 | 1990 | 1360 | 1700 | / |
Note 1: For transformers boasting a rated capacity of 500kVA and below, the load loss values situated above the diagonal line in the table are tailored for the Dyn11 or Yzn11 coupling group. Conversely, the load loss values found below the diagonal line correspond to the Yyn0 coupling group.
Note 2: Achieve maximum operational efficiency when the transformer's average annual load rate hovers between 35% and 40%. This can be ensured by opting for the loss value presented in the table.
Rated capacity (KVA) |
Voltage combination | Connection group label | No-load loss(W) | Load loss(W) | No-load current (%) |
Short circuit impedance (%) |
Dimensions | Total weight (kg) |
||||
High voltage (KV) |
Tapping range |
Low voltage (KV) |
L | W | H | |||||||
25 | 20 10 6 |
±5 ±2 ×2.5 |
0.4 | Dyn11 Yyn0 Dyn5 |
63 | 600 | 1.7 | 5.5(20kV) 4 (6kV, 10kV) |
1090 | 600 | 1150 | / |
50 | 81 | 750 | 1.6 | 1120 | 620 | 1180 | / | |||||
100 | 130 | 1250 | 1.3 | 1150 | 650 | 1290 | / | |||||
160 | 189 | 1750 | 1.1 | 1160 | 675 | 1380 | / | |||||
250 | 270 | 2350 | 0.96 | 1200 | 880 | 1400 | / | |||||
315 | 324 | 2800 | 0.88 | 1230 | 920 | 1460 | / | |||||
400 | 387 | 3250 | 0.8 | 1250 | 950 | 1580 | / | |||||
500 | 459 | 3900 | 0.8 | 1390 | 960 | 1580 | / | |||||
630 | 540 | 4600 | 0.72 | 6(20kV) 4.5 (6kV, 10kV) |
1450 | 980 | 1600 | / | ||||
800 | 585 | 6000 | 0.64 | 1560 | 1020 | 1720 | / | |||||
1000 | 693 | 7600 | 0.56 | 1700 | 1070 | 1790 | / | |||||
1250 | 855 | 9500 | 0.56 | 1700 | 1070 | 1791 | / | |||||
1600 | 1080 | 12000 | 0.48 | 1850 | 1130 | 1850 | / | |||||
2000 | 1305 | 15000 | 0.48 | 6(20kV) 5 (6kV, 10kV) |
2000 | 1280 | 1980 | / | ||||
2500 | 1575 | 18500 | 0.4 | 2040 | 1320 | 2050 | / | |||||
3150 | 1980 | 23000 | 0.4 | 2200 | 1400 | 2250 | / |
Note 1: For transformers with a rated capacity of 500kVA and below, observe that load loss values above the diagonal line in the table are designed for the Dyn11 or Yzn11 coupling group, while those below the diagonal line are for the Yyn0 coupling group.
Note 2: To harness the pinnacle of operating efficiency when the average annual load rate of the transformer lies between 35% and 40%, utilize the loss value indicated in the table.