800kVA Oil-Immersed Distribution Transformer
Nov 06, 2025
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This 800 KVA transformer was delivered to Ghana. the rated power of the transformer is 800 KVA. It is a Step-down transformer 11KV to 550V, the primary voltage is 11kv, the secondary voltage is 550v. Our transformer has reasonable arrangement for oil tube and connection which increasing the capacity of mechanical strength and anti-shortcut. Our 800KVA distribution transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.
Technical Specification
800 KVA transformer specification and data sheet
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Delivered to |
Ghana |
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Year |
2017 |
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Model |
S11-800 KVA-11/0.55KV |
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Type |
Oil Immersed Transformer |
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Standard |
IEC60076 |
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Rated Power |
800 KVA |
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Frequency |
50 HZ |
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Phase |
Three |
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Cooling Type |
ONAN |
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Primary Voltage |
11 KV |
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Secondary Voltage |
550 V |
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Winding Material |
Copper |
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Vector Group |
Dyn11 |
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Impedance |
4.5% |
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Tap Changer |
NLTC |
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Tapping Range |
±2*2.5% |
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No Load Loss |
0.98kw |
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On Load Loss |
7.5kw |
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Accessories |
Standard Configuration |
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Remarks |
N/A |
Oil-Immersed Transformer Running Environment
- Highest temperature: + 40 ℃
- Lowest temperature: -45 ℃
- Altitude: ≤ 4000 m
- Highest monthly average relative humidity: 90% (20 ℃)
- Installation location: without fire, explosion danger, serious foul, chemical corrosion, or violent vibration.
800 KVA 11/0.55KV Transformer Bushing
Transformer bushing
When the lead wire of the transformer winding passes through the oil tank cover from the oil tank, it must pass through the insulation sleeve so that the live lead wire is insulated from the grounded oil tank. Insulated bushing is generally made of porcelain, its structure depends on its voltage class.
Customization Optional
800kVA Oil Filled Transformer
GNEE's 800kVA oil-immersed transformers can provide a variety of optional specifications according to customer needs to meet different application scenarios and technical requirements. The primary and secondary voltages can be customized according to the power grid standards of different countries and regions, such as 6.6kV/400V, 10kV/415V, 11kV/433V, 20kV/400V, etc. ONAN (natural oil circulation/natural air cooling) or ONAF (natural oil circulation/forced air cooling) cooling methods are provided to adapt to different load conditions. Low-loss models can be customized according to IEC, GB, ANSI, DOE, and other standards to improve energy efficiency and are suitable for green energy-saving projects.
In addition, moisture-proof, anti-corrosion, and anti-salt spray coatings can also be selected to adapt to high humidity, coastal areas, or highly polluted industrial areas. These optional specifications ensure that GNEE's 800kVA oil-immersed transformers can meet the needs of various complex working conditions and different industries, providing higher reliability and operating efficiency.
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
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Demander |
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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