Description
10MVA Oil Immersed Transformer

This image showcases our 10MVA oil-immersed transformer, designed to handle demanding medium-voltage work. It features a strong, corrosion-resistant tank, along with carefully shaped corrugated fins that help the transformer stay cool during operation. The high-quality porcelain bushings provide safe and stable insulation even when the electrical load is heavy. The built-in conservator system keeps the oil level balanced and protects the transformer insulating oil, helping the unit stay stable over many years while reducing the need for maintenance.
Every part of this transformer shows our experience in designing oil-filled transformers. Its cooling system is carefully optimized, and the internal structure is engineered to stay reliable even during long hours of operation. The transformer uses high-quality mineral oil, a stable insulating fluid that offers strong dielectric performance, resists moisture, and supports a long service life. Thanks to these advantages, it becomes a reliable choice for medium-voltage applications such as substations, industrial power facilities, and renewable-energy systems.
This image shows more than just a piece of equipment—it reflects our dedication to reliable engineering, strict testing, and stable product quality. Our oil-type transformer is designed to run efficiently, reduce energy loss, and stay stable even in tough weather conditions or heavy-load applications. It is widely used in important projects such as large factories, regional power distribution networks, and utility-level solar or wind power stations.
Choosing our 10MVA oil-immersed transformer means choosing a long-term, trustworthy partner. We offer complete technical support, flexible customization, project-specific designs, and secure global shipping to ensure safe delivery of the transformer and its insulating oil. From installation guidance to after-sales service, our team helps you achieve smooth operation, long service life, and lower overall costs.
10MVA Oil Immersed Transformer Parameters

Comprehensive technical specifications for our 10MVA oil-immersed transformer demonstrate its exceptional performance and reliability.
Power Rating (kVA): 10,000 kVA
Load Losses (W): 45,100 W (low values ensure reduced energy waste and higher efficiency)
No-Load Losses (W): 8,260 W (optimized for minimal standby losses)
Dimensions (L × W × H): 3830 × 2216 × 2640 mm
Weight (kg): 1,580 kg (robust build for long-term durability)
Efficiency Index (%): >99.625% (extremely high, guaranteeing stable and economical operation)
These figures underline the transformer’s energy-saving design, compact yet durable structure, and outstanding efficiency, making it a trusted choice for demanding industrial and utility applications worldwide.
Applications

This visual overview highlights the wide-ranging global applications of our 10MVA oil-immersed transformer, showcasing its critical role in modern medium-voltage power systems. Engineered for stability, safety, and long service life, this oil filled transformer maintains reliable performance even in demanding electrical environments where power continuity is essential.
Built with premium transformer insulating oil and high-efficiency cooling pathways, the unit delivers consistent voltage quality and dependable operation across multiple sectors. Its durable structure, stable transformer fluid, and optimized internal design allow seamless integration into diverse projects that depend on resilient medium-voltage equipment.
Key Application Scenarios
Large Industrial Complexes
Ideal for heavy manufacturing plants, refineries, steel mills, and processing facilities. This oil-type transformer provides stable power, reduces unexpected downtime, and improves electrical safety—even when loads change frequently or equipment runs for long hours.
Utility Substations
A key component for regional power networks, ensuring accurate voltage conversion and dependable energy delivery. Its high-quality insulating oil and strong mechanical structure help boost grid efficiency while lowering maintenance requirements.
Major Commercial & Institutional Facilities
Well-suited for data centers, hospitals, airports, high-rise buildings, and large commercial complexes. These environments rely on uninterrupted power, strong fault protection, and clean voltage to keep operations running smoothly.
With its solid design, flexible installation options, and optimized transformer mineral oil cooling system, the 10MVA oil-immersed transformer plays an essential role in major electrification projects. It strengthens network stability, supports long-term energy needs, and easily adapts to future load growth.
Choosing us means gaining access to advanced transformer engineering, tailored configuration options, fast and reliable technical support, and a global logistics team capable of delivering oil-immersed transformers safely to sites worldwide. Our solutions deliver dependable performance from installation through long-term operation—giving your project the confidence of proven technology and trusted service.
Project Case

This world map highlights where our 10MVA oil-immersed transformers are operating around the globe. It shows how our products run reliably in different regions and power environments. Each marked country—including the USA, Russia, Turkey, Venezuela, Kyrgyzstan, and Finland—represents a project successfully built to match local grid standards, climate conditions, and performance requirements.
These installations demonstrate the stability of our oil-filled transformers under extreme temperatures, fluctuating loads, and challenging environments. With high-quality insulating oil, durable tank structures, and efficient cooling systems, each unit delivers steady performance for utility upgrades, industrial facilities, and major infrastructure projects. The use of premium transformer fluid also improves long-term efficiency and reduces maintenance needs, ensuring consistent reliability.
Our expanding global presence is supported by strong engineering expertise, flexible customization, and responsive after-sales service. From early project planning to overseas delivery and on-site guidance, we offer complete support for clients who require dependable oil-type transformers for medium-voltage networks. Customers rely on our solutions not only for durable construction but also for our commitment to long-term cooperation, transparent communication, and reliable service throughout the equipment lifecycle.
Packaging & Shipping

This image presents our engineered packaging for the 10MVA oil-immersed transformer. Each unit is fixed on a custom steel skid for stable support. The reinforced wooden crate protects the oil transformer during long-distance transport. These layers absorb vibration and reduce impact risk. The structure keeps all components secure through loading and cross-border shipping.
We add anti-condensation breathers to protect the transformer insulating oil. Moisture-control materials maintain internal dryness during transport. Waterproof barriers shield the oil filled transformer from humidity and salt spray. These protections help preserve the purity of the transformer fluid. They also protect the tank and bushings from environmental damage.
This packaging method reflects our global logistics expertise. Each oil type transformer is prepared to arrive clean and flawless. Our logistics team manages strict oversight from factory to destination. These controls prevent delays and avoid transport-related damage. They ensure stable performance when the transformer reaches the site.
Clients receive a fully protected unit with clean transformer mineral oil. The equipment arrives ready for installation and quick commissioning. Our process safeguards long-term reliability and reduces project risk. It also protects your investment with industry-best handling standards. This approach supports safe transport for medium-voltage transformers worldwide.
10MVA Oil Immersed Transformer Certifications

Global Cooperation
![Team of engineers from [Your Company Name] posing with international clients or partners at a project site or factory.](https://solarasiapv.com/wp-content/uploads/2025/09/3.png)
This authentic photograph features our engineering team alongside international clients and partners, symbolizing the close collaboration and trust that define our global projects. We provide full support from design and factory acceptance tests for every 10MVA transformer. Our commitment continues through installation, maintenance, and lifelong service worldwide.
More than just equipment suppliers, we act as technical partners dedicated to ensuring project success and operational confidence. We build lasting relationships and deliver tailored solutions for every client. This ensures reliable performance and peace of mind in power infrastructure investments.
This image shows our customer focus and global expertise, proving our team supports every 10MVA transformer worldwide.
FAQ
1. What is a 10MVA oil-immersed transformer?
A 10MVA oil-immersed transformer is a power transformer that uses transformer oil for insulation and cooling. The oil helps transfer heat away from the windings and core, ensuring safe and stable operation in medium- and high-voltage power systems.
2. What applications is this transformer suitable for?
It is widely used in:
Industrial plants and manufacturing facilities
Regional distribution networks
Utility-scale solar and wind power stations
Commercial buildings and infrastructure projects
Mining, data centers, and heavy-load environments
3. What voltage levels can you offer for the 10MVA unit?
We can customize primary and secondary voltages based on your project requirements. Common configurations include:
33/11kV
35/6kV
22/0.4kV
10/0.4kV
Custom voltage ratios, vector groups, and tap changer ranges are fully supported.
4. What types of transformer oil do you use?
We offer multiple options depending on your local standards and environment:
Mineral oil (IEC 60296)
K-Class fire-resistant oil
Biodegradable natural ester oil
All oils meet international insulation and safety requirements.
5. How long is the service life of the 10MVA transformer?
With proper maintenance, oil-immersed transformers typically last 25–30 years or more. Our units use high-grade materials and advanced manufacturing processes to extend service life and improve reliability.
6. Do you provide factory testing and inspection?
Yes. Every 10MVA transformer undergoes:
Routine tests
Type tests
Special tests (upon request)
All tests follow IEC, IEEE/ANSI, or your specified national standards.
7. Can the transformer operate in harsh environments?
Absolutely. Our design supports:
High-temperature climates
Coastal / high-humidity areas
Desert environments
High-altitude regions
Heavy-load industrial conditions
Special coatings, reinforced insulation, or upgraded cooling systems are available.
8. Do you support customized design?
Yes. We can customize:
Voltage ratio & vector group
Cooling method (ONAN / ONAF / OFAF)
Tap changer (on-load or off-load)
Bushings, radiators, accessories
Protection and monitoring systems
Transformer oil type
We tailor the transformer to match your project specifications.
9. How do you ensure safe transportation?
Transformers are packed with:
Reinforced wooden or steel frames
Shock-proof and moisture-proof protection
Secure bracing inside containers
Transformer oil is shipped separately or filled based on your import regulations.
10. What technical documents will I receive?
We provide complete documentation:
Drawings (GA, wiring, foundation)
Test reports
Datasheets
Operation & maintenance manual
Warranty certificate
11. What is the delivery time?
Standard delivery for a 10MVA oil-type transformer is 25–45 days, depending on customization and order quantity.
12. Do you offer after-sales support?
Yes. We offer:
Remote technical support
Installation guidance
Commissioning assistance
Spare part supply
Long-term maintenance advice
13. What is the warranty period?
Our standard warranty is 12–24 months, and extended warranties are available for large projects.







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