Oil-Immersed Power Transformer
High-efficiency oil-immersed power transformer for utility and industrial applications, rated up to 500MVA with voltage classes up to 220kV.
Key Features
Every oil-immersed transformer is built with precision engineering and premium materials to ensure decades of reliable, maintenance-free operation.
Advanced Core Design
Low no-load loss, high efficiency with premium grain-oriented silicon steel core.
Superior Cooling
Multiple cooling modes ONAN, ONAF, and ONDAF for flexible thermal management.
Sealed Tank
Maintenance-free, moisture-proof hermetically sealed tank for extended lifespan.
Smart Monitoring
Optional online monitoring system for real-time temperature, oil level, and load tracking.
Why Choose This Transformer?
Engineered for 30+ Years of Reliable Service
Rugged construction designed to withstand extreme conditions.
IEC/IEEE/CE Certified Quality
Meets the strictest international quality standards.
Customizable to Your Specifications
Tailored voltage, frequency, and environmental ratings.
99.3%+ Efficiency at Rated Load
Low no-load loss core design for maximum energy savings.
Low Noise, ≤65dB at 1 Meter
Suitable for residential and noise-sensitive installations.
Sealed Maintenance-Free Tank Design
Reduces lifetime maintenance costs by up to 60%.
Optional Smart Monitoring System
Real-time temperature, load, and oil level monitoring.
Complete Turnkey Solution Provider
Design, manufacturing, shipping, installation, and after-sales.
High Efficiency Core
Low loss grain-oriented silicon steel
Multiple Certifications
ISO 9001 / IEC / IEEE / CE
Global Delivery
Shipped to 50+ countries
24/7 After-Sales
Lifetime technical support
Technical Specifications
Comprehensive specifications for our standard oil-immersed power transformer series. Custom designs available upon request.
| Parameter | Specification |
|---|---|
| Rated Capacity | 100 - 5000 kVA |
| High Voltage | 11kV, 22kV, 33kV, 35kV |
| Low Voltage | 0.4kV, 3.15kV, 6.3kV, 10.5kV |
| Frequency | 50Hz / 60Hz |
| Cooling Mode | ONAN / ONAF / ONDAF |
| Tap Changer | No-load / On-load |
| Impedance | 4% - 6% (standard) |
| Efficiency | ≥ 99.3% at rated load |
| Noise Level | ≤ 65 dB |
| Temperature Rise | 65K (winding) / 60K (oil) |
Certifications & Compliance
Our transformers are certified to meet the most stringent international standards, ensuring quality and safety for every installation.
Ready to Order?
Contact our engineering team for a free consultation and competitive quotation tailored to your project requirements.