Premium oltc power transformer 315kVA 11kV 0.433kV long term warranty for Africa urban distribution and factory expansion
315kVA OLTC transformer with on-load voltage adjustment for stable urban distribution & factory expansion. Features copper windings, ONAN cooling, 3-year warranty, and compact design for space-limited installations.
315 kVA oltc power transformer
,0.433kV oltc power transformer
,11kV oltc power transformer
The 315kVA premium oil-immersed transformer with on-load tap changer (OLTC) is developed for urban distribution networks and factory expansion projects that require real-time voltage adjustment and stable power quality.
With a refined magnetic core, copper winding system, and integrated OLTC mechanism, it enables smooth voltage regulation without interrupting operation, supporting consistent output under varying grid conditions.
This model is suitable for city power networks, industrial upgrades, and load expansion scenarios where voltage stability and operational continuity are essential.
- On-Load Voltage Adjustment Capability
Integrated OLTC system allows voltage regulation during operation, supporting continuous power supply without interruption.
- Stable Output for Expanding Loads
Designed to maintain consistent voltage levels during factory expansion and load increase scenarios.
- Precision Voltage Control
Supports fine voltage adjustment to match changing grid conditions in urban environments.
- Compact Design for Urban Deployment
Optimized structure suitable for limited installation space in city distribution networks.
- Reliable Operation Under Variable Conditions
Balanced electrical and thermal design supports stable performance under fluctuating load and grid conditions.


| Parameter | Specification |
|---|---|
| Rated Capacity | 315 kVA |
| Primary Voltage | 11 kV |
| Secondary Voltage | 0.433 kV |
| Phase | Three Phase |
| Frequency | 50 Hz / 60 Hz |
| Cooling Method | ONAN |
| Core Material | Cold-rolled silicon steel |
| Winding Material | Copper |
| Insulation Class | A / F |
| Tap Changer | On-load tap changer (OLTC) |
| Tap Range | Multi-step adjustable |
| Insulating Medium | Mineral oil |
| Tank Type | Sealed |
| Installation | Outdoor / Ground mounted |
- Voltage fluctuation in urban distribution networks
- Load increase during factory expansion phases
- Need for uninterrupted power during adjustment
- Grid variation affecting equipment performance
- OLTC system enabling real-time voltage regulation
- Copper winding structure improving load adaptability
- Optimized core design supporting efficient energy transfer
- Stable thermal performance under continuous operation
- Flexible tap adjustment supporting different load stages
These features support stable and continuous voltage control in dynamic urban and industrial environments.
- Urban distribution networks
- Factory expansion and capacity upgrades
- Commercial and mixed-use buildings
- Industrial workshops and processing facilities
- Utility-level medium to low voltage transformation
- Infrastructure and municipal power systems

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