100kVA 11kv 3-Phase Oil Immersed Step-Down Power Transformer
Oct 29, 2025
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Product characteristics:
1.The core is made of high quality cold rolled grain oriented silicon steel sheet, 45°three-stage fully oblique seams, no punching, and the core column is brushed with polyurethane varnish for curing.
2.The coil is made of oxygen-free copper conductor with reasonable structure, which improves the resistance to sudden short-circuit.
3.Increase the effective support of winding end face, so that the short-circuit resistance of the winding is further improved.
4.Oil storage cabinet is cancelled, and the wave fin of corrugated oil tank replaces the oil pipe as the cooling element, the wave super can expand and contract with the volume expansion and contraction of the transformer oil, the transformer oil is isolated from the atmosphere, which prevents and reduces the deterioration of the oil quality and the insulation dampness, and strengthens the operation reliability, and the normal operation is free of maintenance.
100kVA 11kv 3-Phase Oil Immersed Transformer Service environment:
1. Ambient temperature: Maximum +40ºC, Minimum -40ºC.Parameters can also be customized according to the customer's environment, such as long-term stable operation in a 55 ºC desert environment
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
Oil filled Transformer Product Paramenters
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Rated capacity (KVA) |
Voltage Combination And Tap Range |
Connection group label |
S13 |
S11 |
Short Circuit Impedance (%) |
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High voltage(KV) |
Tapping Range Of Voltage % |
Low voltage (KV) |
No-load loss (KW) |
On-load loss(KW) |
No-load loss (KW) |
On-load loss(KW) |
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30 |
6 6.3 6.6 10 10.5 11 |
±5 ±2×2.5 |
0.4 |
Dyn11 Yzn11 Yyn0 |
0.08 |
0.63/0.6 |
0.1 |
0.63/0.6 |
4.0 |
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50 |
0.1 |
0.91/0.87 |
0.13 |
0.91/0.87 |
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63 |
0.11 |
1.09/1.04 |
0.15 |
1.09/1.04 |
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80 |
0.13 |
1.31/1.25 |
0.18 |
1.31/1.25 |
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100 |
0.15 |
1.58/1.5 |
0.2 |
1.58/1.5 |
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125 |
0.17 |
1.89/1.8 |
0.24 |
1.89/1.8 |
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160 |
0.2 |
2.31/2.2 |
0.28 |
2.31/2.2 |
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200 |
0.24 |
2.73/2.6 |
0.34 |
2.73/2.6 |
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250 |
0.29 |
3.2/3.05 |
0.4 |
3.2/3.05 |
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315 |
0.34 |
3.83/3.65 |
0.48 |
3.83/3.65 |
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400 |
0.41 |
4.52/4.3 |
0.57 |
4.52/4.3 |
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500 |
0.48 |
5.41/5.15 |
0.68 |
5.41/5.15 |
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630 |
Dyn11 Yyn0 |
0.57 |
6.2 |
0.81 |
6.2 |
4.5 |
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800 |
0.7 |
7.5 |
0.98 |
7.5 |
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1000 |
0.83 |
10.3 |
1.15 |
10.3 |
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1250 |
0.97 |
12 |
1.36 |
12 |
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1600 |
1.17 |
14.5 |
1.64 |
14.5 |
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2000 |
1.55 |
18.3 |
1.94 |
18.3 |
5.0 |
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2500 |
1.83 |
21.2 |
2.29 |
21.2 |
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Customization Optional
100kVA Oil type Transformer
GNEE's three-phase oil-immersed transformers can be fully customized to meet your specific requirements.
The optional specifications of the 100kVA three-phase oil-immersed transformer include a variety of customized options to meet different application requirements. Customers can choose different voltage levels and load adjustment devices, such as tap switches with load or no load adjustment, to ensure accurate output of voltage. In addition, the transformer can be equipped with a temperature monitoring system, an oil level monitoring device, and a pressure relief device to enhance safety and real-time monitoring. In order to improve the durability of the equipment, users can also choose anti-corrosion coating or stainless steel casing, which is suitable for use in harsh environments.
With these optional configurations, the 100kVA three-phase oil-immersed transformer can better adapt to different working environments and operating conditions.
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
Get Transformer Order specification
GNEE Transformer Order specification
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When choosing our company's products, please provide the following data to better serve you. |
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Demander |
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Demander: |
Telephonemethods: |
Fax: |
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Project technical leader: |
Telephonemethods: |
Mailbox: |
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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

