Oil-Immersed Power Transformer 10kV / 0.4kV – 1000kVA Distribution Transformer
- Information
Product Overview
The oil-immersed power transformer is a highly reliable electrical equipment designed for medium-voltage power distribution systems, widely used in industrial, commercial, utility, and infrastructure projects.
This 1000kVA transformer is designed to step down medium voltage (10kV) to low voltage (0.4kV), ensuring stable and efficient power distribution for downstream electrical systems.
The transformer uses high-quality silicon steel core, oxygen-free copper windings, and high-grade insulating oil, ensuring excellent electrical performance, low losses, strong overload capacity, and long service life. It is suitable for both indoor substations and outdoor distribution applications.
With advanced cooling performance and strong thermal stability, the transformer guarantees continuous operation under heavy load conditions, making it ideal for critical power supply systems.
Key Advantages
High efficiency and low energy loss
Strong overload capacity
Excellent heat dissipation performance
Long service life (20+ years design life)
Stable operation under harsh environments
Low noise and low partial discharge
Maintenance-friendly design
Suitable for continuous heavy-load operation
Technical Specifications (1000kVA – 10kV / 0.4kV)
| Item | Specification |
|---|---|
| Rated Capacity | 1000 kVA |
| Primary Voltage | 10 kV |
| Secondary Voltage | 0.4 kV |
| Frequency | 50 Hz / 60 Hz |
| Phase | Three-phase |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Vector Group | Dyn11 (Standard) |
| Insulation Class | Class A |
| Winding Material | Oxygen-free Copper / Aluminum (optional) |
| Core Material | Cold-rolled Grain-oriented Silicon Steel |
| Tap Changer | Off-load / On-load (optional) |
| Impedance Voltage | 4% – 6% |
| Noise Level | ≤ 55–65 dB |
| Temperature Rise | ≤ 65K |
| Protection Level | IP23 (outdoor enclosure optional) |
| Oil Type | Mineral Insulating Oil |
Structural Features
High-quality laminated silicon steel core for reduced no-load loss
Vacuum oil filling process for improved insulation performance
Strong mechanical structure for short-circuit resistance
Fully sealed tank design to prevent moisture and contamination
Efficient cooling fins for natural heat dissipation
Robust bushings for safe high-voltage connection
Applications
Industrial power distribution systems
Commercial buildings
Data centers
Mining operations
Oil & gas facilities
Infrastructure and utility substations
Renewable energy integration systems
Optional Customization
Outdoor protective enclosure
On-load tap changer (OLTC)
Temperature monitoring system
Remote monitoring (IoT system)
Different vector groups (Dyn11 / Yyn0)
Copper or aluminum winding options
Anti-corrosion coating for coastal areas
Low-noise design upgrade
Why Choose This Transformer
This oil-immersed transformer is engineered for long-term stable operation in demanding power environments. With optimized electromagnetic design and high-quality materials, it ensures maximum efficiency, minimal losses, and superior reliability in continuous power distribution systems.
It is widely used in global EPC projects, industrial plants, and utility-grade power networks where stability and durability are critical.
