Customization: | Available |
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Application: | Power |
Phase: | Three |
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The S-M series three-phase oil-immersed transformer features a fully oil-filled, sealed corrugated oil tank. Its adaptive shell accommodates oil expansion while meeting heat dissipation needs, ensuring high efficiency and minimal losses.
This design significantly reduces power consumption and operating costs, making it an ideal choice for power plants, substations, and industrial settings including ports and airports.
Standard Compliance: IEC60076-1, IEC60076-2, IEC60076-3, IEC60076-5, IEC60076-10. Our products adhere to international standards, guaranteeing quality and safety.
1. Temperature Range: Withstand extreme temperatures from a maximum of +40°C to a minimum of -25°C, ensuring adaptability in diverse climates.
2. Temperature Stability: Operates efficiently with an average temperature of the hottest month at +30°C and the hottest year at +20°C.
3. Altitude Performance: Reliable operation at altitudes not exceeding 1000m, maintaining performance integrity.
4. Voltage Waveform: Ensures the power supply voltage waveform closely resembles a sine wave for optimal efficiency.
5. Voltage Symmetry: Designed to maintain an approximately symmetrical three-phase supply voltage, enhancing system stability.
6. Harmonic Content Control: Keeps the total harmonic content of the load current within 5% of the rated current to ensure efficiency and performance stability.
7. Usage Flexibility: Suitable for both indoor and outdoor applications, providing versatile solutions for different environments.
1. Unmatched Performance: Enjoy the benefits of high efficiency, low loss, and quiet operation, tailored to meet modern energy demands.
2. Robust Construction: Featuring high mechanical strength, balanced ampere-turn distribution, and exceptional short-circuit resistance.
3. Energy Efficiency: Designed to minimize no-load and load loss, maximizing operational efficiency and cost savings.
4. Compact and Durable: Built for reliability, these compact transformers offer long service life and maintenance-free operation.
Structure Details: Delve into the sophisticated design elements that make our transformers a benchmark in the industry.
Iron Core: Crafted to perfection for optimal performance.
Iron Core: Utilizing high-quality, high-performance, high-permeability silicon steel sheets for reduced no-load loss.
The iron core, made from premium high-permeability silicon steel sheets, ensures low no-load loss and enhances overall efficiency.
High/Low Voltage Winding: Precision engineered for superior performance.
The low-voltage winding of 500KVA and below employs a layer type, while a new spiral type is utilized for 630KVA and above, ensuring enhanced performance.
Built for high mechanical strength, balanced ampere-turn distribution, and robust short-circuit resistance.
Fully Sealed Structure: Innovative sealing techniques for optimal performance.
Utilizing a fully sealed design with a vacuum oil filling process to eliminate moisture, isolate transformer oil from air, and enhance reliability.
Positioning Structure: Enhanced stability during transit.
The structure includes a positioning mechanism to avoid displacement during transportation, with all fasteners securely designed for stability.
Crafted with high-quality fastening nuts, our product ensures that fasteners remain securely in place, even during extended periods of operation. This guarantees the stability and integrity of the product for long-term reliability.
Oil Tank Design:
The oil tank features an advanced corrugated design, providing a streamlined construction process combined with exceptional mechanical strength. With superior welding effects and minimized leakage, the oil's enhanced fluidity significantly boosts the product's heat dissipation capabilities, ensuring optimal performance.
Additional Configurations:
Our product is equipped with a pressure relief valve and a signal thermometer, crucial components that ensure the transformer operates safely under various conditions.
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 with a rated capacity of 500kVA and below, the load loss values positioned above the diagonal in the table are applicable to the Dyn11 or Yzn11 coupling groups, while the values below the diagonal are tailored for the Yyn0 coupling group.
Note 2: To achieve maximum operational efficiency, aim for an average annual load rate between 35% and 40%, utilizing the loss value specified in the table.
Overall and Installation 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 capacities of 500kVA and below, load loss values above the diagonal relate to Dyn11 or Yzn11 groups, while those below pertain to the Yyn0 group.
Note 2: To optimize efficiency, strive for a 35% to 40% average annual load rate, referring to the table's loss values.
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 rated 500kVA and below, load loss values above the diagonal apply to Dyn11 or Yzn11 groups and those below to Yyn0.
Note 2: Achieve optimal efficiency with a 35% to 40% average annual load rate, as indicated 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 | |||||||
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: Transformers up to 500kVA use loss values above the diagonal for Dyn11/Yzn11, below for Yyn0.
Note 2: For peak efficiency, maintain a 35% to 40% average annual load rate, per the table's loss values.
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: Load loss values for transformers of 500kVA or less are above the diagonal for Dyn11/Yzn11, and below for Yyn0.
Note 2: Maximize operational efficiency with a 35% to 40% average annual load rate, according to table values.
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 with a rated capacity of 500kVA and below, ensure peak performance by referring to the load loss values above the diagonal line in the table for the Dyn11 or Yzn11 coupling group. For the Yyn0 coupling group, refer to the values below the diagonal line to achieve optimal efficiency.
Note 2: To unlock the maximum operational efficiency when your transformer's average annual load rate hovers between 35% and 40%, utilize the precise loss values provided in the table. This strategic approach will drive optimal performance.
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 boasting a rated capacity of 500kVA and below, gain superior performance by adhering to load loss values above the diagonal line for the Dyn11 or Yzn11 coupling group. Conversely, for the Yyn0 coupling group, consult values below the diagonal line to enhance efficiency.
Note 2: Achieve peak operational efficiency with your transformer when its average annual load rate sits between 35% and 40% by adopting the specified loss values in the table. This ensures seamless functionality and energy optimization.