1250 KVA Transformer Oil Immersed Type
Nov 06, 2025
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1250 KVA Oil Immersed Transformer Technical Specifications
| Type | Oil Filled Transformer |
| Phrase | Three-phase |
| Rated Capacity | 1250 KVA |
| Rated Voltage | Customizable |
| Secondary Voltage | 0.4 KV |
| Frequency | 50Hz / 60Hz |
| Winding Material | Copper |
| Iron Core | Cold-rolled Silicon Steel Sheet |
| Insulation Material | Transformer Oil |
| Standard | GB1094.1 (IEC60076) |
A 1250 KVA Oil-Immersed Transformer is a high-capacity electrical transformer designed for efficient power distribution. Here's a product description for a transformer of this capacity:
Oil Filled Transformer Key Features:
Capacity:With a robust rating of 1250 kilovolt-amperes (KVA), this transformer is designed to handle large electrical loads, making it suitable for various applications in industrial, commercial, and utility settings.
Oil-Immersed Design:The transformer is immersed in oil for cooling and insulation purposes. This design enhances heat dissipation, providing efficient cooling during operation, and ensures effective insulation to withstand high voltage levels.
Three-Phase Configuration:Operating on a three-phase system, the transformer facilitates balanced and efficient power distribution, making it suitable for industrial facilities, large commercial buildings, and power distribution networks.
High Efficiency:Engineered for high efficiency, the transformer minimizes energy losses during the power conversion process. This is essential for optimizing energy usage and reducing operational costs over the transformer's operational life.
Durability and Reliability:Constructed with high-quality materials and precision engineering, the transformer is built to withstand continuous operation under various environmental conditions, ensuring a stable and reliable power supply.
Low Maintenance:The oil-immersed design typically requires lower maintenance compared to dry-type transformers. Regular monitoring and oil testing can help ensure the transformer's longevity and performance.
Compliance with Standards:The transformer complies with relevant industry standards and regulations to ensure its safety, reliability, and performance. This may include features such as overcurrent protection, thermal protection, and other safety measures.
Oil Filled Transformer Applications:
– Industrial Facilities: Suitable for powering heavy machinery, motors, and other equipment in industrial settings.
– Commercial Buildings: Ideal for providing power in large commercial complexes, shopping malls, and office buildings.
– Power Distribution Networks: Used in transformer substations for distributing power within an electrical grid.
– Data Centers: Can be utilized in data centers where a stable and reliable power supply is critical.
– Renewable Energy Projects: Used in solar or wind installations where a high-capacity transformer is required to connect to the grid.
– Large-Scale Infrastructure Projects: Suitable for powering critical infrastructure projects such as airports, seaports, and manufacturing plants.
Customization Optional
1250kVA Oil Immersed Transformer
GNEE's 1250kVA oil-immersed transformers offer a variety of optional specifications to meet the needs of different customers. The rated voltage of the transformer can be customized according to customer requirements, with common high-voltage and low-voltage combinations to adapt to different power transmission environments. In order to improve efficiency and safety, the transformer is equipped with an adjustable temperature control device to ensure its stable operation under various working conditions. The oil tank is made of high-strength steel, which has excellent corrosion resistance and pressure resistance, ensuring durability in long-term use. The optional temperature protection system and overload protection device can cut off the circuit in time when the equipment is abnormal to prevent damage.
Customers can also choose different types of cooling methods, such as natural air cooling and forced air cooling, to adapt to different ambient temperature requirements. The insulation system of the transformer is made of high-quality materials, which can effectively improve its short-circuit resistance and service life. In addition, an intelligent monitoring system can be configured according to needs to monitor the operating status of the equipment in real time, provide early warning information, and ensure the safe operation of the equipment.
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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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, Pakistan, Indonesia, Vietnam, Mongolia, Japan, Taiwan Province, Bangladesh, Sri Lanka, Lebanon, Saudi Arabia, Turkey, Armenia, Saudi Arabia, Saudi Arabia, 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, Mexico, Uruguay, Chile
Middle East: The Middle East region
Oceania: Australia, Papua New Guinea. Fiji