315 KVA 11KV Oil Immersed Distribution Transformer
Nov 10, 2025
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introduction of Oil Immersed Distribution Transformer
the rated power of the transformer is 315 KVA, the primary voltage of the transformer is 11KV and the secondary voltage is 0.4KV. The cooling system of these liquid filled transformers are ONAN, the coolant is PCB free transformer mineral oil and core material is used by grain oriented silicon steel sheet. Our 315 KVA power transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time. We also provide power transformer, dry type transformer, furnace transformer and rectifier transformer.
Technical Specification
315 KVA three phase distribution transformer to South Africa
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Model |
S11-315 KVA-11/0.4KV |
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Type |
Oil Immersed Distribution Transformer |
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Standard |
IEC60076 |
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Rated Power |
315 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 |
0.4 KV |
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Winding Material |
Copper |
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Vector Group |
Dyn11 |
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Impedance |
4% |
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Tap Changer |
NLTC |
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Tapping Range |
±2*2.5%@primary side |
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No Load Loss |
0.48 KW |
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On Load Loss |
3.65 KW |
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Accessories |
Standard Configuration |
315 KVA 11KV Oil Filled Transformer applications
- Industrial power distribution: Factories, plants, and large industrial facilities.
- Commercial buildings: Malls, office buildings, hospitals, and other commercial centers.
- Renewable energy systems: Solar and wind farms where high voltage needs to be stepped down for distribution.
- Rural electrification: Providing power to residential and community areas in rural locations.
- Utility substations: As a component in utility substations to facilitate power distribution.
Notes on transformer oil filling:
1. Before oil injection, the transformer oil shall pass the test.
2. The remaining oil in the transformer shall be drained as far as possible to avoid the quality deterioration of the new oil.
3. It is forbidden to mix dust, moisture, moisture and other dirt into the transformer through the oil when filling oil into the transformer.
4. The main body of the transformer should be in a vacuum state, - 0.095mpa, to prevent the corrosion of moisture on the coil.
5. Vacuum oil purifier should be selected as oil filling equipment, and gear oil pump is not allowed to directly inject oil into transformer.
6. The oil injected into transformer should be new oil or running oil of the same brand as the oil in the original equipment, and its indicators should meet the standards.
7. The oil flow speed should be controlled as much as possible in the process of oil injection, which is conducive to the bubbles in the oil to be separated from the oil in time.
8. Special personnel must be assigned to monitor the oil level and make corresponding exhaust preparation.
Location selection of distribution transformer installation:
1. Avoid flammable and explosive places.
2. Avoid dirty and low-lying areas.
3. High voltage and low-voltage incoming and outgoing lines are convenient.
4. Convenient construction, operation and maintenance.
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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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