S11-M-30
Power
Three
Core-type Transformer
Oil-immersed Type Transformer
Auto-transformer
ISO9001-2000, ISO9001, CCC, CE
Power Transformer, Distribution Transformer
Power Frequency
Ring
Hwp
30kVA~3150kVA
11kv
0.4kv 0.415kv
50-31500 kVA
0.16-2.36kw
0.55- 1.3%
-40 ºC -+ 40ºC
1.3-0.55 %
50Hz/60Hz
Dyn11
HWP
Wooden Box
copper, aluminum, Minral Oil
China
8504231200
Product Description
Oil Immersed 3 Phase Transformer
The fully sealed oil immersed power transformer adopts the fully oil-filled sealed type. The corrugated
tank shell is apermanently sealed tank with its elasticity adapting to the expansion of oil,can adapt to
a variety of outdoor harsh environment ,which has been widely used in various power distribution
equipment.
Product Features
1.The transformer core is made of imported high-quality cold-rolled silicon steel sheet, which greatly reduces no-load loss and no-load current. The core is tightly bound to ensure the compactness and reduce noise.
2. The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
3. Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
4.The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
5. The measured noise value is lower than the standard and maintenance free under normal operation.
2. The high and low voltage windings are made of oxygen-free copper. The low voltage winding of 500KVA and below is of double-layer cylinder structure, of 630kVA and above adopt double helix or four helix structure. High-voltage winding adopts multi-layer cylinder structure.
3. Dyn11 is used in the transformer connection group to reduce the influence of harmonics on the power grid and improve the quality of power supply.
4.The transformer is a fully sealed structure, with three coats of primer and one coat of finish paint applied on the inner and outer surfaces. The product is salt fog proof, moisture proof and fungus-proofing, beautiful, durable and reliable
5. The measured noise value is lower than the standard and maintenance free under normal operation.
6. Maintenance-free: Oil immersed Outdoor Distribution Transformer,the fully sealed transformer does not require maintenance.
When placing order, please provide the following technical parameters
1. kV rated voltage:
2. rated voltage;
3. Combination of three levels, accurate phase and accurate;
4. rated output, and the corresponding accurate level (VA).

Applicable Environment
Our Advantages 1.This model is produced in accordance with Chinese national GB standards and the international IEC standards.
2. It uses oil as the main insulation means of the transformer, and relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation, etc.
3. The main components: iron core, winding, fuel tank, oil pillow, breathing apparatus, explosion-proof tube (pressure release valve), radiator, insulating casing, tap switch, gas relay, thermometer, oil purifier, etc.
4.Widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms and oil production platforms; especially suitable for use in flammable, explosive and other harsh environments.














Model number | Rated capacity(kVA) | Join group label | Voltage combination>(kV) | No-load loss(W) | Load loss(W) | No-load current(%) | Short circuit impedance(%) | Dimensions(mm) | Weight(kg) | Gauge(mm) | |||||
High tension | Tapping range | Low pressure | L | W | H | Oil | Weight | ||||||||
S11-M-30 | 30 | Yyn0 or Dyn11 | 6 6.5 10 10.5 11 20 30 | ±5% or ±2×2.5% | 0.4 | 90 | 600 | 2.3 | 4 | 740 | 665 | 875 | 74 | 283 | 400*500 |
S11-M-50 | 50 | 120 | 870 | 2 | 770 | 675 | 965 | 88 | 362 | 400*500 | |||||
S11-M-63 | 63 | 140 | 1040 | 1.9 | 820 | 700 | 1020 | 112 | 442 | 450*500 | |||||
S11-M-80 | 80 | 180 | 1250 | 1.9 | 835 | 705 | 1040 | 117 | 481 | 450*500 | |||||
S11-M-100 | 100 | 200 | 1500 | 1.8 | 850 | 715 | 1055 | 122 | 520 | 450*500 | |||||
S11-M-125 | 125 | 240 | 1800 | 1.7 | 1180 | 740 | 1115 | 154 | 667 | 500*500 | |||||
S11-M-160 | 160 | 280 | 2200 | 1.6 | 1225 | 775 | 1175 | 176 | 788 | 500*500 | |||||
S11-M-200 | 200 | 340 | 2600 | 1.5 | 1245 | 790 | 1195 | 193 | 898 | 500*500 | |||||
S11-M-250 | 250 | 400 | 3050 | 1.4 | 1340 | 880 | 1230 | 209 | 1027 | 550*500 | |||||
S11-M-315 | 315 | 470 | 3650 | 1.4 | 1425 | 935 | 1260 | 234 | 1177 | 550*500 | |||||
S11-M-400 | 400 | 560 | 4300 | 1.3 | 1470 | 955 | 1330 | 265 | 1399 | 550*600 | |||||
S11-M-500 | 500 | 680 | 5100 | 1.2 | 1490 | 960 | 1405 | 283 | 1576 | 550*600 | |||||
S11-M-630 | 630 | 840 | 6200 | 0.9 | 4.5 | 1585 | 1030 | 1370 | 317 | 1771 | 660*660 | ||||
S11-M-800 | 800 | 980 | 7500 | 0.8 | 1675 | 1090 | 1480 | 366 | 2128 | 660*820 | |||||
S11-M-1000 | 1000 | 1150 | 10300 | 0.7 | 1775 | 1175 | 1530 | 402 | 2379 | 660*820 | |||||
S11-M-1250 | 1250 | 1360 | 12800 | 0.6 | 1965 | 1155 | 1700 | 542 | 3023 | 820*820 | |||||
S11-M-1600 | 1600 | 1640 | 14500 | 0.6 | 2055 | 1210 | 1800 | 616 | 3591 | 820*820 | |||||
S11-M-2000 | 2000 | 1950 | 18500 | 0.5 | 5.5 | 2090 | 1280 | 1930 | 950 | 2830 |
Applicable Environment
- High ambient temperature: +40ºC
- Low ambient temperature: -25ºC
- Altitude: <1000m
- Monthly average relative humidity: 90% (20ºC)
- Installation location: used in chemical plants, factories, remote places and harsh environment.

Our Advantages 1.This model is produced in accordance with Chinese national GB standards and the international IEC standards.
2. It uses oil as the main insulation means of the transformer, and relies on oil as the cooling medium, such as oil-immersed natural cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation, etc.
3. The main components: iron core, winding, fuel tank, oil pillow, breathing apparatus, explosion-proof tube (pressure release valve), radiator, insulating casing, tap switch, gas relay, thermometer, oil purifier, etc.
4.Widely used in high-rise buildings, commercial centers, subways, airports, stations, industrial and mining enterprises, drilling platforms and oil production platforms; especially suitable for use in flammable, explosive and other harsh environments.










Our regular packaging: wooden boxes or customized support.
We support multiple transportation methods, transportation costs, and the most suitable
transportation method for you. You can click here to contact us and help you check.
transportation method for you. You can click here to contact us and help you check.





1. Q: Are you a trading company or manufacturer?Are OEM and ODM available?
A: We are a factory with more than 10 years experiences.
2.Q:Do you have a catalogue? Can you send me the catalogue to have a check of all your products?
A:We have a product catalog. Please contact us online or via email to request a copy.
3. Q:What about the production?
A:In general,it take 25 working days for production and it depend on the different style.
4. Q: Do you have the products in stock?
A: Depending on your request,we have standard models available.
5. Q: How can I pay you?
A: Pay by T/T and L/C is acceptable.
6. Q: Can I get guarantee of products and How do you solve quality problems?A: Every product comes with a 1 year quality warranty, provided the products are used correctly by
the customer. Please provide detailed photos of quality problems, Our technical and quality testing
department will analyse.We will make a satisfied solution within 2 days.