1.1MVA Transformer Substation For Columbia Photovoltaic Project
Project Overview:
Location: Colombia
Installed Capacity: 5.5MW
Number of Substations: 5
Rated Capacity: 1.1MVA/unit
Voltage Conversion: 800V/13800V
Annual Power Generation: 7.8GWh
Emission Reduction: 4,200 tons of CO₂/year
A 5.5MW photovoltaic power station in Colombia is scheduled to be connected to the grid in 2026. Located in a highland area with an average altitude of 2,800 meters, the project boasts abundant sunshine resources and an average annual radiation of 1,800 kWh/m². It is a key project of the Colombian government's efforts to promote renewable energy transition.
The customer selected five 1.1MVA modular substation solutions from TSTY. These devices convert the 800V DC power generated by the photovoltaic array into 13,800V via inverters for connection to the local grid. This collaboration marks a significant breakthrough for TSTY in the South American new energy market.
Customized Solutions
To address the unique plateau environment, the TSTY R&D team has made several improvements to the standard product:
1. Adopting high-altitude insulation materials, the electrical clearance has been increased by 15%
2. Equipped with a plateau-grade heat dissipation system, the temperature rise is controlled within 65K at rated capacity
3. The enclosure protection level has been increased to IP54, and the internal components are IP65
Core Technical Parameters
Rated Capacity: 1.1MVA (adjustable ±10%)
Voltage Level: 800V/13800V
Impedance Voltage: 4.5% (optimized design to reduce short-circuit current)
No-load Loss: ≤0.25% (20% lower than conventional products)
Load Loss: ≤0.85% (compliant with IEEE Standards) C57.91 standard)
Design life: 25 years (5-year maintenance-free cycle)
The project showcases several technological innovations:
High-altitude adaptive design: solves heat dissipation and insulation challenges at high altitudes;
Modular architecture: facilitates rapid deployment and future expansion;
Intelligent monitoring system: enables remote operation and maintenance, reducing labor costs;
Environmentally friendly materials: 85% recyclable throughout the entire lifecycle.
Upon successful operation, the project will provide 7.8GWh of clean electricity annually, equivalent to:
Meeting the electricity needs of 3,500 households;
Reducing CO2 emissions by 4,200 tons;
Replacing 2,600 tons of standard coal;
The successful implementation of the 5.5MW photovoltaic project in Colombia demonstrates the exceptional performance of the TSTY modular substation in challenging environments. Through continuous technological innovation and localized service, TSTY contributes Chinese wisdom to the global energy transition with its reliable products and professional solutions.