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High-Quality Oil Immersed Power Transformer from China Suppliers and Factory - Reliable Performance and Safety
Advanced technology and good performance
S11 Series products in S9 Based on the series, the no-load loss is reduced by an average of 30%; the no-load current ratio S9 70-85% decrease;
Average temperature rise reduced by 10K, Product life span more than doubled;
The product operating noise is reduced by an average of 2-4 decibels.
Fully sealed(M)
Select S11(M) First M The oil tank adopts a fully sealed structure. Compared with the ordinary oil diffused transformer, the fully sealed distribution transformer eliminates the oil storage cabinet and the corrugated fins of the oil tank replace the oil pipe. As a cooling and heat dissipation element, the corrugated oil tank is manufactured from high-quality cold-rolled thin plates on a dedicated production line. The corrugated fins can expand and contract with the expansion and contraction of the transformer oil volume, thereby isolating the transformer from the atmosphere, preventing and slowing down oil degradation and insulation moisture, enhancing operational reliability, and requiring maintenance for normal operation.
Transformer model meaning
Normal operating conditions of transformer
Altitude not exceeding 1000m;
Ambient temperature: Maximum temperature +40℃; Average temperature in the hottest month +30℃;
The highest annual average temperature is +20℃; the lowest outdoor temperature is -25℃.
Special conditions for use of transformers
Altitude over 1000m;
Ambient temperature: Maximum temperature +40℃; Minimum temperature -45℃;
* Please specify when ordering
Transformer meets the standards
| GB 1094.1-1996 GB 1094.3-2003 GB/T6451-1999 |
GB1094.2-1996 GB1094.5-2003 GB/T 7595-1987 |
JB/T10088-2004 GB/T 10237-1988 JB/T 3837-1998 |
Overall dimensions and installation dimensions
10kV class S11-M Series oil immersed distribution transformer technical parameters
| Rated capacitance | Voltage combination (kV) | Connection method | Loss (kW) | No-load electricity flow(%) | Impedance Pressure (%) | weight(Kg) | Dimensions(mm) (Length L×Width B×Height H) | gauge Vertical/ Horizontal | ||||
| high pressure | Low pressure | No load | load (75℃) | Heavy | Oil weight | Total weight | ||||||
| 30 | 11 10.5 10 6.3 6 |
0.4 | Yy115 or Dyn11 |
0.1 | 0.6 | 2.1 | 4 | 185 | 70 | 325 | 750x490x970 | 450/350 |
| 50 | 0.13 | 0.87 | 2 | 255 | 85 | 420 | 770x550x1030 | 450/350 | ||||
| 63 | 0.15 | 1.04 | 1.9 | 280 | 95 | 480 | 800x600x1040 | 450/380 | ||||
| 80 | 0.18 | 1.25 | 1.8 | 320 | 100 | 535 | 810x680x1060 | 450/430 | ||||
| 100 | 0.2 | 1.5 | 1.6 | 380 | 110 | 615 | 820x680x1100 | 550/450 | ||||
| 125 | 0.24 | 1.8 | 1.5 | 440 | 115 | 690 | 1070x700x1150 | 550/470 | ||||
| 160 | 0.28 | 2.2 | 1.4 | 510 | 130 | 800 | 1120x700x1220 | 550/500 | ||||
| 200 | 0.34 | 2.6 | 1.3 | 610 | 150 | 935 | 1160x720x1255 | 550/520 | ||||
| 250 | 0.4 | 3.05 | 1.2 | 720 | 190 | 1110 | 1200x760x1310 | 650/550 | ||||
| 315 | 0.48 | 3.65 | 1.1 | 835 | 200 | 1270 | 1210x780x1320 | 650/550 | ||||
| 400 | 0.57 | 4.3 | 1.0 | 1010 | 240 | 1540 | 1340x880x1360 | 650/550 | ||||
| 500 | 0.68 | 5.15 | 1.0 | 1170 | 260 | 1765 | 1360x890x1430 | 750/600 | ||||
| 630 | 0.81 | 6.2 | 0.9 | 4.5 | 1375 | 320 | 2095 | 1560x1020x1410 | 850/660 | |||
| 800 | 0.98 | 7.5 | 0.8 | 1620 | 365 | 2470 | 1640x1060x1500 | 850/660 | ||||
| 1000 | 1.15 | 10.3 | 0.7 | 1780 | 405 | 2780 | 1720x1160x1540 | 850/660 | ||||
| 1250 | 1.36 | 12 | 0.6 | 2065 | 560 | 3395 | 1790x1190x1740 | 850/660 | ||||
| 1600 | 1.64 | 14.5 | 0.6 | 2470 | 650 | 3990 | 1830x1210x1850 | 850/700 | ||||
| 2000 | 1.94 | 18.3 | 0.6 | 2700 | 695 | 4460 | 2190x1900x1950 | 820/820 | ||||
| 2500 | 2.29 | 21.2 | 0.6 | 3230 | 870 | 5330 | 2240x1940x1980 | 1070/1070 | ||||
10kV class S11-M Technical parameters of series oil-immersed power transformers
| Rated capacitance | Voltage combination (kV) | Connection method | Loss (kW) | No-load electricity flow(%) | Impedance Pressure (%) | weight(Kg) | Dimensions(mm) (Length L×Width B×Height H) | gauge Vertical/ Horizontal | ||||
| high pressure | Low pressure | No load | load (75℃) | Heavy | Oil weight | Total weight | ||||||
| 200 | 11 10.5 10 6.3 6 |
6.3 6 3.15 |
Ydn11 | 0.34 | 3.15 | 1.6 | 4.5 | 650 | 160 | 1000 | 1180x740x1270 | 660/660 |
| 250 | 0.4 | 3.6 | 1.7 | 770 | 200 | 1190 | 1230x780x1340 | |||||
| 315 | 0.48 | 4.3 | 1.6 | 900 | 215 | 1360 | 1260x810x1370 | |||||
| 400 | 0.57 | 5.2 | 1.5 | 1080 | 260 | 1650 | 1380x900x1390 | |||||
| 500 | 0.68 | 6.2 | 1.4 | 1250 | 280 | 1890 | 1400x920x1450 | |||||
| 630 | 0.81 | 7.3 | 1.3 | 5.5 | 1470 | 340 | 2245 | 1580x1020x1430 | 820/820 | |||
| 800 | 0.98 | 8.9 | 1.2 | 1735 | 385 | 2645 | 1665x1070x1520 | |||||
| 1000 | 1.15 | 10.5 | 1.1 | 1910 | 430 | 2980 | 1740x1160x1550 | |||||
| 1250 | 1.36 | 12.42 | 1.0 | 2210 | 590 | 3640 | 1820x1210x1740 | |||||
| 1600 | 1.64 | 14.85 | 0.6 | 2640 | 680 | 4270 | 1840x1240x1860 | |||||
| 2000 | 1.96 | 17.82 | 0.9 | 2890 | 725 | 4775 | 2210x1920x1970 | |||||
| 2500 | 2.31 | 20.7 | 0.8 | 3460 | 910 | 8710 | 2260x1970x1995 | 1070/1070 | ||||
| 3150 | 2.73 | 24.3 | 0.8 | 4230 | 1350 | 7085 | 2320x2280x2360 | |||||
| 4000 | 3.36 | 28.8 | 0.7 | 5025 | 1675 | 8150 | 2460x2480x2475 | |||||
| 5000 | 3.99 | 33 | 0.7 | 6020 | 1940 | 9610 | 2575x2640x2590 | |||||
| 6300 | 4.76 | 36.9 | 0.6 | 8125 | 2550 | 12660 | 2640x2820x2810 | |||||
| 8000 | 6.52 | 40.5 | 0.55 | 9620 | 2780 | 15100 | 2710x2840x3040 | 1475/1475 | ||||
| 10000 | 7.70 | 47.7 | 0.55 | 11660 | 3070 | 17480 | 2850x2880x265 | |||||
Frequently Asked Questions (FAQ)
What are the performance advantages of the S11 Series compared to the S9 Series?
Compared to the S9 series, the S11 series products reduce no-load loss by an average of 30%, decrease the no-load current ratio by 70-85%, lower the average temperature rise by 10K (more than doubling the life span), and reduce operating noise by an average of 2-4 decibels.
How does the fully sealed (M) oil tank structure improve reliability?
The fully sealed structure eliminates the oil storage cabinet, replacing traditional oil pipes with corrugated fins as cooling elements. These fins expand and contract with the transformer oil volume, isolating the oil from the atmosphere. This prevents oil degradation and insulation moisture, enhancing reliability and reducing maintenance requirements.
What are the normal operating environmental conditions for these transformers?
Normal operating conditions include an altitude not exceeding 1000m, a maximum ambient temperature of +40℃, a hot-month average temperature of +30℃, an annual average temperature of +20℃, and a minimum outdoor temperature of -25℃.
Can the S11-M series transformers be customized for special conditions?
Yes. Special conditions such as altitudes exceeding 1000m or ambient temperatures ranging from -45℃ to +40℃ can be accommodated. Please specify these requirements when ordering.
Which standards do the S11-M series transformers comply with?
They comply with key industry standards including GB 1094.1-1996, GB 1094.2-1996, GB 1094.3-2003, GB 1094.5-2003, GB/T 6451-1999, GB/T 7595-1987, JB/T 10088-2004, GB/T 10237-1988, and JB/T 3837-1998.
What connection methods are available for these transformers?
Depending on the model and capacity, the connection methods include Yy115, Dyn11, and Ydn11.