Oil Immersed Transformers for Utility & Power Distribution Projects
Designed for utility, industrial, and infrastructure projects.
IEC-compliant oil immersed transformers with stable performance for long-term outdoor operation and export markets.
IEC compliant oil immersed transformers
Rated capacity up to 5000 kVA
Voltage class up to 35 kV
ISO & CE certified manufacturing facility
Oil Immersed Transformer Overview
Designed for outdoor substations, utility power distribution networks, and infrastructure projects.
Design standards: IEC 60076 (design-based), customized per project requirements.
Typical Technical Specifications
Rated capacity: 100kVA – 5000kVA
Rated voltage: Up to 35kV
Frequency: 50 / 60 Hz
Cooling method: ONAN / ONAF
Insulation medium: Mineral oil
Vector group: Dyn11 / Yyn0 (optional)
Tapping range: ±2×2.5% / ±5% (optional)
Ambient temperature: –25°C to +40°C
Installation: Outdoor
Design standard: IEC / GB (design-based, customizable)
WHY OUR OIL IMMERSED TRANSFORMERS ARE TRUSTED
✅ Engineered for Long-Term Outdoor Operation
Optimized oil circulation design
Stable performance under high load and harsh environments
✅ Strict Manufacturing & Testing Process
Routine tests conducted before delivery
Factory inspection available FAT support upon request
✅ Flexible Design & Customization
Voltage level, vector group, tapping range customizable
Designed based on IEC or GB standards
✅ Experienced Support for Overseas Projects
Support for industrial, infrastructure and utility projects
Fast technical response within 24 hours
Typical Applications & Use Cases
Utility substations
Industrial power distribution
Infrastructure projects
Renewable energy integration
Outdoor distribution systems
Quality Control & Manufacturing
Core lamination stacking process
Automatic coil winding workshop
Each oil immersed transformer is manufactured under a strict quality management system.
From core assembly, coil winding, tank fabrication, oil filling to final testing, every step is inspected to ensure safety and performance.
ISO certified factory
Standard testing before shipment
Project-based production experience
CERTIFICATIONS & QUALITY ASSURANCE
ISO 9001 Quality Management System
CE compliance for selected transformer models
Additional test reports or certifications can be provided based on project requirements.
CE Verification of Conformity (selected models)
ISO 9001 Quality Management System Certificate
Request a Technical Solution
Share your basic project details and receive a tailored transformer solution from our engineering team.
Technical consultation · Project-based solutions · Fast response
Required capacity (kVA)
Primary & secondary voltage
Installation or application environment
Destination country or project location