160kVA Three Phase Oil Immersed Power Distribution Transformer
Oct 30, 2025
Leave a message
The three-phase oil-immersed transformer is manufactured with premium silicon steel and oxygen-free copper windings. It features low loss, low noise, and high efficiency. With oil used for insulation and cooling, it ensures stable performance under various operating conditions. It is widely applied in power transmission and distribution systems, industrial facilities, and infrastructure projects.

Three Phase Oil Immersed Transformer Product structure features
1. It's an environment-friendly transformer with low no-load loss, no-load current and noise;
2. No oil storage box to save space;
3. Whole sealed with vacuum oil filling, high stability of insulation;
4. Adopts the corrugations on the oil tank as its heat-radiation parts, corrugations can expand or contract accord to the change of oil volume
5. Fully sealed structure, maintenance free;
6. With oil level gauge to ensure the safety running.
Oil Filled Transformer Specification
Technical data of S13-M 10kV three-phase full seal non excitation voltage regulating distribution transformer| Rated Power(kva) | High Voltage(kv) | High Voltage Tapping range | Low Voltage(kv) | Connection symbol | No-load loss(kw) | load loss(W) 75° | Short clroult Impedance (%) | No-load current(%) |
| 30 | 6 10 10.5 11 | ±5% or ±2×5% | 0.4 | Dyn11 or Yyn0 | 80 | 630/600 | 4 | 2.1 |
| 50 | 100 | 910/870 | 4 | 1.9 | ||||
| 80 | 130 | 1310/1250 | 4 | 1.8 | ||||
| 100 | 150 | 1580/1500 | 4 | 1.6 | ||||
| 125 | 170 | 1890/1800 | 4 | 1.5 | ||||
| 160 | 200 | 2310/2200 | 4 | 1.4 | ||||
| 200 | 240 | 2730/2600 | 4 | 1.3 | ||||
| 250 | 390 | 3200/3050 | 4 | 1.2 | ||||
| 315 | 340 | 3830/3650 | 4 | 1.1 | ||||
| 400 | 410 | 4520/4300 | 4 | 1 | ||||
| 500 | 480 | 5410/5150 | 4 | 1 | ||||
| 630 | 570 | 6200 | 4.5 | 0.9 | ||||
| 800 | 700 | 7500 | 4.5 | 0.8 | ||||
| 1000 | 830 | 10300 | 4.5 | 0.7 | ||||
| 1250 | 970 | 12000 | 4.5 | 0.6 | ||||
| 1600 | 1170 | 14500 | 4.5 | 0.6 | ||||
| 2000 | 1360 | 18000 | 4.5 | 0.5 | ||||
| 2500 | 1610 | 21000 | 4.5 | 0.4 |
Customization Optional
160kVA Oil Immersed Transformer
GNEE's 160kVA three-phase oil-immersed transformer has a wide range of optional specifications to meet the specific needs of different scenarios and users.
In terms of voltage, the primary voltage can be selected from common voltage levels such as 10kV, 20kV, and 35kV, and the secondary voltage is generally 0.4kV, etc., and special voltage combinations can also be customized according to the actual power grid conditions.
In terms of connection groups, Yyn0, Dyn11, etc., are commonly selected. The Dyn11 connection group can provide better adaptability to three-phase unbalanced loads, while Yyn0 is more suitable for some systems with specific requirements for neutral point grounding. Cooling methods include oil-immersed self-cooling (ONAN) and oil-immersed air cooling (ONAF). Oil-immersed self-cooling relies on natural convection and radiation heat dissipation, with a simple structure and reliable operation. It is suitable for places with relatively stable loads and good heat dissipation conditions; oil-immersed air cooling adds fan-assisted heat dissipation on the basis of self-cooling, which can effectively reduce the temperature of the transformer when the load is large or the ambient temperature is high, and improve the overload capacity.
In addition, you can also choose to configure an on-load voltage regulator or an off-load voltage regulator. The on-load voltage regulator can adjust the voltage when the transformer is running with load, ensuring the stability of the output voltage, and is suitable for power grids with large voltage fluctuations; the off-load voltage regulator needs to adjust the voltage when the transformer is powered off, and the cost is relatively low. At the same time, according to user needs, it can also be equipped with temperature controllers, gas relays and other protection devices to further improve the safety and reliability of transformer operation.
company profile
GNEE TRANSFORMER has strong production capacity and an efficient marketing team.
Our transformer products include 500kV, 400kV, 330kV, 220kV, and 110kV ultra-high voltage transformers, various dry-type transformers/oil immersed transformers/amorphous alloy transformers of 35kV and below, new energy transformers, and prefabricated substations,
Export series: single-phase transformer, three-phase transformer, cylindrical transformer, isolation transformer, control transformer, voltage regulator and other products, And various specifications of special transformers such as grounding transformers, arc suppression coils, Bitcoin transformers, prefabricated cabins, reactors, electric furnace transformers, rectifier transformers, mining transformers, marine transformers, etc.
GNEE TRANSFORMER has successively passed ISO9001, ISO14001, ISO45001, SA8000 system certification. At the same time, 10kV and 35KV level distribution transformers and box type substations have obtained interna- tional Electrotechnical Commission IEC certification, US UL certification, German TUV certification, EU CE certification, Dutch KEMA certification, and GOST certification. Our product sales cover the global market, including 72 countries and regions such as the United States, Europe, Canada, Mexico, etc.
transformer Workshop equipment display













types of transformer from GNEE
Get Transformer Order specification
GNEE Transformer Order specification
|
When choosing our company's products, please provide the following data to better serve you. |
||
|
Demander |
||
|
Demander: |
Telephonemethods: |
Fax: |
|
Project technical leader: |
Telephonemethods: |
Mailbox: |
|
Transformer type selection |
||
|
□Dry transformer {□SC(B) Epoxy resin □SC(B) Non-encapsulated} □American Box(ZGS) {□Terminal type(-Z-) □Ring network type(-H-)} □European Box change(YBM){□ Dry change □Oil change} |
□ Oil-immersed transformer{□ Fully sealed(-M-) □Oil-bearing pillow} □Amorphous alloy transformer{□Dry amorphous □ Oil amorphous} □ Special transformer{Rectifier, Furnace, Mine, Etc} |
|
Transformer basic data selection
|
Country of use: |
|
|
Phase number: |
□Three-phase(S conventional) □ Monophase □Other( ) |
|
Frequency: |
□50Hz(conventional) □60Hz □ Other( ) |
|
Transformer oil: |
□#25(conventional) □#45(minimum temperature below-25℃) |
|
Rated capacity: |
□( )kVA Conditions of use □Outdoor type □Indoor type |
|
Altitude: |
□Less than 1000m(conventional) □1000-2000m □3000m以上 over |
|
Rated voltage(High voltage) |
□6kV □10kV □20kV □35kV □66kV □110kV □220kV □Other( ) |
|
Rated voltage(Low pressure) |
□0.4kV □0.66kV □10kV □10.5kV □35kV □其他 Other( ) |
|
Connected group |
□Dyn11(conventional) □Yyn0 □YNd11 □li0(Single-phase) □Other( ) |
|
Impedance(%): |
□4% □4.5% □5.5% □6% □6.5% □7.5% □8% □Other( ) |
|
Voltage regulation mode |
□Voltage regulation without excitation(conventional) □On-load voltage regulation(Z) |
|
Voltage regulation range |
□±2*2.5% □±5% □±3*2.5% □Other( ) |
Transformer accessory selection
|
□Fan □Temperature control{□ Common □With 485 computer interface} □Dry case{□ Ordinary steel sheet □Aluminum alloy » Stainless steel} □Protection level of dry case(□IP20(Conventional) □IP( )} □Dry case height requirements{□None □Requirements[ ]} □ Cable out mode of the dry variable shell {□ Up-and-out □ Up-and-down □Down-in/DOWN-out □Down-in/UP-out □Down-in/DOWN-out □Down-in/ side-out [□Left □ Right-out]} |
|
Note: 1. (Dry change requirements s 100kVA transformer does not include fans, such as fans, need to be charged 2. (Oil changes <630kVA transformer does not include temperature control, gas relay, if necessary, need to increase the fee) |
Other special requirements(additional charges apply below)
|
Dry transformer |
□Shell and bottom plate{□Ordinary □Fully sealed} □Travel switch □Magnetic lo □Zero sequence transformer □Copper bar to the low voltage cabinet □Protective mesh □Lighting □100kVA or less Fan □Shock absorber |
|
Oil-immersed transformer |
□No.45 oil for non-low temperature areas □Designated brand on-load voltage regulator □400kVA and below low voltage outlet OABC phase with wiring terminals □630kVA or below requires temperature control □800kVA or below Low voltage outlet phase 0 requires wiring terminals □630kVA and below must be equipped with gas relay |
GNEE TRANSFORMER Industrial Layout
Asia:China, Philippines, Cambodia, Malaysia, Pakistan, Indonesia, Vietnam, Mongolia, Japan, Taiwan Province, Bangladesh, Sri Lanka, Lebanon, Saudi Arabia, Turkey, Armenia, Saudi Arabia, Saudi Arabia, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan
Africa:Egypt, Ethiopia, Angola, Botswana, Burundi, Cape Verde, Congo, Guinea, Ghana, Gabon, Zimbabwe, Cameroon, Kenya, Rwanda, Malawi, Mauritius, Mauritania, Mozambique, South Africa, Nigeria, Somalia, Chad, Central Africa
North America: Aruba, Panama, Dominican Republic, Costa Rica, Honduras, Caribbean region,Canada, United States, Mexico, El Salvador, Guatemala, Jamaica
Europe: Bulgaria, North Macedonia, Finland, Norway, Ukraine, Greece, Hungary, Italy, United Kingdom
South America: Argentina, Paraguay, Ecuador, Colombia, Guyana, Mexico, Uruguay, Chile
Middle East: The Middle East region
Oceania: Australia, Papua New Guinea. Fiji

