100kVA Step-Down Oil Immersed Transformer
Oct 29, 2025
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100kVA Step-Down Oil Immersed Transformer Introduction

A 100kVA step-down oil-immersed transformer is used for power distribution in applications like commercial buildings, industrial plants, agricultural operations, and residential areas. It reduces voltage for local consumption in places such as factories, hospitals, shopping malls, and rural areas, and is also found in substations and for various utility applications.
100kVA Oil filled Transformer Product Selection Table
| Rated Power (kVA) | High Voltage (kv) | Low Voltage (kv) | Connection symbol | No-load loss(W) | On-load loss(W) | No load current (W) |
| 30 | 6KV 6.3KV 10KV 10.5KV 11KV 20KV 35KV (customizable) |
0.4KV (customizable) |
Ydn11 Yyn0 (customizable) |
100 | 600/630 | 2.1 |
| 50 | 130 | 870/910 | 2.0 | |||
| 63 | 150 | 1040/1090 | 1.9 | |||
| 80 | 180 | 1250/1310 | 1.8 | |||
| 100 | 200 | 1500/1580 | 1.6 | |||
| 125 | 240 | 1800/1890 | 1.5 | |||
| 160 | 280 | 2200/2310 | 1.4 | |||
| 200 | 340 | 2600/2730 | 1.3 | |||
| 250 | 400 | 3050/3200 | 1.2 | |||
| 315 | 480 | 3650/3830 | 1.1 | |||
| 400 | 570 | 4300/4520 | 1.0 | |||
| 500 | 680 | 5150/5410 | 1.0 | |||
| 630 | 810 | 6200 | 0.9 | |||
| 800 | 980 | 7500 | 0.8 | |||
| 1000 | 1150 | 10300 | 0.7 | |||
| 1250 | 1360 | 12000 | 0.6 | |||
| 1600 | 1640 | 14500 | 0.6 | |||
| 2000 | 2020 | 17820 | ||||
| 2500 | 2380 | 20700 |
Iron core:
The iron core is made of brand new and excellent silicon steel sheets.
Ensure that customers maintain low wear and tear during use, low noise during operation, and more energy-efficient requirements
Winding:
Use heat-resistant enameled wire.
Ensure good conductivity, stable operation, enhanced overload capacity, low line loss, and resistance to oxidation of the winding.
Extend the lifespan of transformers
Transformer oil tank:
The transformer oil tank is composed of corrugated walls that can breathe.
Excellent corrugated walls can compensate for changes in transformer oil volume caused by temperature rise and fall. Therefore, we cancelled the design of the oil storage tank for the transformer. This not only reduces the cost of the transformer, but also lowers the overall height of the transformer. Saved users' various costs.
Safety protection device:
We will equip the transformer with sensitive relief valves and precise glass thermometer sockets.
Of course, we can also equip trip terminals with alarms and gas relays according to customer requirements.
Everything is just to ensure your safety during use.
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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When choosing our company's products, please provide the following data to better serve you. |
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Demander: |
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Project technical leader: |
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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

