10kV three‑phase oil‑immersed distribution transformer achieves 98.5% efficiency for residential, commercial and light‑industrial grids. IEC/GB certified, PCB‑free mineral‑oil cooling, >30‑year service lifespan. Custom capacities, taps and mounting available. Strict quality checks, low‑maintenance with worldwide technical backing.
Key Features & Advantages
Our distribution transformers are engineered for excellence, featuring:
• Superior Core & Coil Technology
Built with high-quality cold-rolled silicon steel and transformers electrical power grade oxygen-free copper windings. The multi-layer cylindrical structure ensures high conductivity and low resistance.
• Enhanced Thermal Management
Features a spiral coil design with longitudinal oil passages, allowing for better internal heat dissipation and stable performance under heavy loads.
• Ultimate Short-Circuit Protection
Improved coil end-face support ensure the unit remains unmoved even under intense short-circuit currents.
• Leak-Proof & Anti-Aging
Equipped with premium rubber sealing materials and a fully sealed corrugated tank design to prevent oil leakage and oxidation.
• Quiet & Durable
Integrated low-noise technology and specialized anti-loosening fasteners make this one of the most reliable transformers and power solutions for noise-sensitive environments.
• Reliable Transportation
A new lifting and body positioning structure ensures the unit remains calibrated and secure during long-distance transit.
Specifications & Parameters
Understanding what is power transformers performance starts with the technical specs. Our 10kV series is designed to exceed IEC 60076 and EN 50588-1 standards.
| Category | Specification / Description |
| Phase | Three-Phase |
| Frequency | 50Hz or 60Hz |
| High Voltage (HV) | 10kV (Customizable) |
| Low Voltage (LV) | 0.4kV / 400V (Customizable) |
| Efficiency Rate | > 98.5% |
| Winding Material | High-Grade Oxygen-Free Copper |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Core Material | Cold-Rolled Silicon Steel |
| Standard Compliance | IEC 60076, EN 50588-1, GB/T 1094 |
| Tank Type | Hermetically sealed corrugated tank |
| All parameters are customizable to specific project needs. Contact us for detailed data sheets and loss calculations. | |
Packaging, Warranty & Certifications Packaging：
We provide end-to-end reliability for global shipping and long-term project success. Robust, export-grade seaworthy packaging. For specific site requirements, we also offer designs compatible with pad mounted distribution transformers enclosures to protect against environmental hazards.
Warranty：
We stand behind our craftsmanship with a standard 12-18 months comprehensive warranty and a design life expectancy of 30 years.
Quality Certifications：
ISO 9001:2015 Quality Management System. CE / IEC Certification for international electrical safety.Environmentally friendly tank oil certification.
Technical Support：
Every unit undergoes rigorous testing (Routine, Type, and Special tests) before dispatch to ensure zero-defect delivery.
A hermetically sealed corrugated tank is what defines this oil immersed distribution transformer. The oil does two jobs at once - it insulates the winding and carries heat away from the core to the tank wall. Corrugation adds the surface area that heat needs in order to leave the unit, and the walls flex slightly as the oil expands and contracts, so there is no conservator, no breather and no oil level to top up in normal service. Cooling is ONAN, oil natural and air natural, which means no cooling fans, no oil pumps and no auxiliary supply to maintain. Premium rubber seals and the sealed tank work together to exclude moisture and slow oil oxidation, and the deep-filtered mineral oil is PCB-free, so the unit suits sites where chlorinated fluids are restricted.
Buying a transformer for a project needs more than a catalogue number. Our engineering team works with you from the first enquiry: reviewing your load, duty cycle and grid conditions, then matching the right rectifier or oil-immersed distribution transformer to the application. We support customised and OEM builds, and where certification applies our units are supplied to IEC 60076 and CE/ISO standards. After delivery we stay involved with installation and commissioning guidance and troubleshooting support, backed by warranty and global service.
An oil immersed distribution transformer uses the oil for two jobs at once: it insulates the winding and carries heat to the tank wall, so a compact unit can hold up under heavy, continuous load without cooling fans. That makes it a good fit for outdoor compounds, dusty plants and tight footprints where an air-cooled unit would need more room or filtered air. The mineral oil is deep-filtered and PCB-free, and the sealed tank keeps it out of contact with air.
No-load loss is paid for around the clock, and load loss rises with the square of the current, so both matter on a unit that stays energised all year. The core and winding are designed together to keep those losses low across the normal load range. Send us your load profile and we will prepare a loss calculation and a full data sheet for the rating you are considering, so running cost can be compared before you commit.
Yes. The 10kV primary and the 0.4kV secondary are customizable, along with rated capacity, impedance and tap configuration. As one of the distribution transformer manufacturers in this class, we work from your single-line diagram and project standard rather than a fixed catalogue rating. Tap range and impedance are typically settled at enquiry stage, because they change the winding design.
Yes, for general plant distribution duty. The natural oil circulation handles load variation without fans or pumps, and the coil end-face support resists the mechanical forces that load changes put on the winding. For a plant with a heavy cyclic load, send the load curve so the rating and impedance can be matched to the duty rather than chosen on capacity alone.
Design life is over 30 years. The two things that shorten it are moisture ingress and oil oxidation, which the sealed tank and rubber sealing system are designed to keep out. In service, the useful checks are for leaks, seal condition and corrosion on the tank, particularly on units sited near coastal or chemical atmospheres.
Yes. A three phase distribution transformer of this design normally sits in an outdoor compound on a plinth, or in a substation bay, and the sealed tank handles the weather without a separate enclosure. Where the site needs a locked and protected installation, arrangements compatible with pad-mounted enclosures are available. Leave clearance around the corrugations so air can move across the tank surface, and agree the foundation and cable entry with our team before delivery.
