100kVA Step-Down Oil Immersed Transformer

Oct 29, 2025

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100kVA Step-Down Oil Immersed Transformer Introduction


 
100kVA Step-Down Oil Immersed Transformer

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.

 

transformer Workshop equipment display


 

Transformer Test equipment
Test equipment
Transformer Test equipment2
Test equipment

 

Oil transformation workshop
Oil transformation workshop
Dry transformation workshop
Dry transformation workshop

 

Transformer Intelligent automatic bending machine
Intelligent automatic bending machine
Transformer Cnc punch press
Cnc punch press

 

Transformer Intelligent laser cutting machine
Intelligent laser cutting machine
Transformer Welding robot
Welding robot

 

Transformer Fully automatic laminating unit
Fully automatic laminating unit
Transformer Fully automatic laminating unit2
Fully automatic laminating unit

 

Transformer Wire winding unit
Wire winding unit
Transformer Wire winding unit2
Wire winding unit
Transformer Wire winding unit3
Wire winding unit

 

 

 

 

types of transformer from GNEE


 

500kV oil-immersed single-phase double-winding unexcited voltage regulating power transformer

500kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
330kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
330kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer
220kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
220kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer
220kV oil-immersed three-phase double-winding on-load voltage regulating power transformer
220kV oil-immersed three-phase three-winding on-load voltage regulating power transformer
110kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
110kV oil-immersed three-phase three-winding unexcited voltage regulating power transformer
110kV oil-immersed three-phase double-winding on-load voltage regulating power transformer
110kV oil-immersed three-phase three-winding on-load voltage regulating power transformer
66kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
66kV oil-immersed three-phase double-winding on-load voltage regulating power transformer
35kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
35kV oil-immersed three-phase double-winding on-load voltage regulating power transformer
10kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer
10kV oil-immersed three-phase double-winding on-load voltage regulating power transformer
S(B)H15(21~25)-M sealed amorphous alloy power transformer
SCB three-dimensional core transformer
35kV dry-type non-excitation voltage regulating power transformer
35kV dry-type on-load voltage regulating power transformer
35kV dry-type three-phase double-winding transformer for photovoltaic, wind power and energy storage on the new energy power generation side without excitation voltage regulation
20kV dry-type non-excitation voltage regulating distribution transformer
10kV dry-type three-phase double-winding non-excitation voltage regulating distribution transformer
10kV dry-type three-phase double-winding transformer for photovoltaic, wind power and energy storage on the new energy power generation side
SC(B)H15(17~19) amorphous alloy dry type transformer
SG(B)12~18 non-encapsulated H-class dry type transformer
CSD marine transformer
SGB three-dimensional core transformer
New energy transformer
35kV oil-immersed three-phase double-winding non-exciting voltage regulation new energy generation side for photovoltaic, wind power, energy storage transformers
10kV oil-immersed three-phase double-winding non-exciting voltage regulation new energy generation side for photovoltaic, wind power, energy storage transformers
Prefabricated cabin substation
Integrated inverter and step-up converter
10000V mine transformer
6000V mine transformer
Buried transformer
Phase-shifting rectifier transformer
Electric furnace transformer
Grounding transformer
QSG/SG three-phase dry isolation transformer
Three-phase pad-mounted transformer
Single-phase pad-mounted transformer
Single-phase pole-mounted transformer

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, 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

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