3MVA 4.5MVA High Efficiency Solar Step Up Transformer for 0.8kV to 33kV African

Our Prefabricated Solar Step Up Integrated Container is designed for utility-scale photovoltaic power plants, solar farms, renewable energy projects and grid-connected PV systems that require efficient medium voltage power transformation in a compact outdoor configuration.

Available in 3MVA and 4.5MVA ratings with a typical 0.8kV to 33kV voltage configuration, the integrated transformer solution is developed to collect low voltage power from solar generation equipment and step it up to medium voltage for efficient transmission and grid connection.

The prefabricated containerized design combines the step-up transformer with a protected outdoor enclosure and project-specific electrical interfaces, helping EPC contractors and renewable energy developers simplify site installation, reduce field assembly work and optimize project deployment.

• Utility scale solar PV farms
• Large photovoltaic power plants
• Renewable energy parks
• Commercial and industrial solar projects
• Remote solar power stations
• Microgrid projects
• Grid connected PV systems
• African EPC solar projects
• Independent power producer projects
• Rural electrification and renewable energy programs

• Outdoor protective enclosure
• Ventilation and heat dissipation system
• Cable entry and exit arrangement
• Transformer compartment
• Medium voltage interface
• Low voltage interface
• Grounding arrangement
• Inspection access
• Lifting structure
• Transportation structure
• Project specific equipment layout

• Temperature monitoring
• Oil level indicator
• Pressure relief device
• Buchholz relay
• Oil temperature indicator
• Winding temperature monitoring
• Surge protection
• Grounding system
• Medium voltage protection
• Low voltage protection
• Overcurrent protection
• Short circuit protection

Many solar projects in Africa are installed in dry, semi-arid or desert environments where fine dust and sand can enter electrical equipment and accumulate on external surfaces.

Our Solution: The integrated container uses a protected enclosure design with controlled ventilation and properly arranged air inlets and outlets. Equipment layout separates critical electrical components from unnecessary direct exposure while maintaining sufficient heat dissipation.

Many African solar projects operate under high solar radiation and elevated ambient temperatures, which can increase transformer operating temperature and reduce available thermal margin.

Our Solution: Transformer rating and cooling arrangement selected according to actual ambient temperature, solar radiation, installation altitude and continuous loading condition. Container designed with appropriate ventilation to prevent excessive heat accumulation.

For oil immersed transformers, oil leakage is an important consideration in remote solar farms where maintenance access can be limited.

Our Solution: Transformer adopts a sealed and reinforced oil containment design with attention to tank welding quality, flange sealing, gasket selection, and oil pipe connections. Critical oil interfaces designed to reduce unnecessary leakage points.

Large PV projects are often located far from major cities and industrial service centers, making frequent onsite maintenance costly.

Our Solution: Prefabricated design moves significant equipment assembly and inspection work into the factory environment. Containerized configuration provides organized access to key equipment and interfaces for efficient maintenance.

Large solar projects may require equipment transportation over long distances, including roads with limited infrastructure.

Our Solution: Integrated container structure designed with transportation and lifting requirements considered during engineering. Layout optimized according to container dimensions, lifting points, and project site installation conditions.