3 Phase 160kVA Oil Immersed Power Transformer
Oct 30, 2025
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* This model is produced in accordance with Chinese national GB standards and the international IEC standards.
* 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.
* 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.
* 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.
160kVA Oil Immersed Transformer Environment condition
1.High ambient temperature: +40ºC
2.Low ambient temperature: -25ºC
3.Altitude: <1000m
4.Monthly average relative humidity: 90% (20ºC)
5.Installation location: Install in a place where there is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration, indoors or outdoors.
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S11 Capacity |
Rated voltage&Off-load tapping | Vector GroupSymbol |
NO-load loss(W) |
Load loss(W) | NO-load current(%) | Short circuit impedance(%) |
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| H.V(kv) | High pressure Tap range(%) |
L.V(kv) | ||||||||
| 30 kva | 11 10.5 10 6.3 6 |
±5% ±2x2.5% |
0.4 0.415 0.420 0.430 0.440 |
Dyn11 Yyn0 |
100 | 630/600 | 1.5 | 4 | ||
| 50 kva | 130 | 910/870 | 1.3 | 4 | ||||||
| 60 kva | 150 | 1090/1040 | 1.2 | 4 | ||||||
| 75 kva | 180 | 1310/1250 | 1.2 | 4 | ||||||
| 100 kva | 200 | 1580/1500 | 1.1 | 4 | ||||||
| 125 kva | 240 | 1890/1800 | 1.1 | 4 | ||||||
| 150 kva | 280 | 2310/2200 | 1 | 4 | ||||||
| 200 kva | 340 | 2730/2600 | 1 | 4 | ||||||
| 250 kva | 400 | 3200/3050 | 0.9 | 4 | ||||||
| 300 kva | 480 | 3830/3650 | 0.9 | 4 | ||||||
| 400 kva | 570 | 4520/4300 | 0.8 | 4 | ||||||
| 500 kva | 680 | 5410/5150 | 0.8 | 4 | ||||||
| 600 kva | 810 | 6200 | 0.6 | 4.5 | ||||||
| 750 kva | 980 | 7500 | 0.6 | 4.5 | ||||||
| 1000 kva | 1150 | 10300 | 0.6 | 4.5 | ||||||
| 1250 kva | 1360 | 12000 | 0.5 | 4.5 | ||||||
| 1500 kva | 1640 | 14500 | 0.5 | 4.5 | ||||||
| 2000 kva | 1940 | 18300 | 0.4 | 5 | ||||||
| 2500 kva | 2290 | 21200 | 0.4 | 5 | ||||||
Customization Optional
160kVA Oil Filled 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.
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types of transformer from GNEE
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GNEE Transformer Order specification
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Transformer type selection |
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□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} |
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Transformer basic data selection
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Country of use: |
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Phase number: |
□Three-phase(S conventional) □ Monophase □Other( ) |
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Frequency: |
□50Hz(conventional) □60Hz □ Other( ) |
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Transformer oil: |
□#25(conventional) □#45(minimum temperature below-25℃) |
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Rated capacity: |
□( )kVA Conditions of use □Outdoor type □Indoor type |
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Altitude: |
□Less than 1000m(conventional) □1000-2000m □3000m以上 over |
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Rated voltage(High voltage) |
□6kV □10kV □20kV □35kV □66kV □110kV □220kV □Other( ) |
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Rated voltage(Low pressure) |
□0.4kV □0.66kV □10kV □10.5kV □35kV □其他 Other( ) |
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Connected group |
□Dyn11(conventional) □Yyn0 □YNd11 □li0(Single-phase) □Other( ) |
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Impedance(%): |
□4% □4.5% □5.5% □6% □6.5% □7.5% □8% □Other( ) |
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Voltage regulation mode |
□Voltage regulation without excitation(conventional) □On-load voltage regulation(Z) |
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Voltage regulation range |
□±2*2.5% □±5% □±3*2.5% □Other( ) |
Transformer accessory selection
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□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]} |
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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)
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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 |
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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, Myanmar, Indonesia, Vietnam, Mongolia, Japan, Taiwan Province, Bangladesh, Sri Lanka, Lebanon, Saudi Arabia, Turkey, Armenia, Iraq, Iran, 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, Venezuela, Uruguay, Chile
Middle East: The Middle East region
Oceania: Australia, Papua New Guinea. Fiji

