We are pleased to announce the successful application of our 10kV oil-immersed distribution transformers in the South Sudan FSF Ground Facilities Project, delivering stable and reliable power for critical ground-support operations. The project required equipment capable of operating under challenging environmental conditions, including high ambient temperatures, fluctuating grid stability, and long-duration continuous loads. Our transformers were selected based on performance, durability, and compliance with international standards.
Technical Specifications of the Supplied Transformers
Voltage Rating: 10kV / 0.4kV
Capacity Range: 250–1000 kVA (models selected based on load distribution)
Cooling Method: ONAN natural air-cooled, oil-immersed
Core Material: Cold-rolled grain-oriented silicon steel with low-loss design
Winding Material: High-conductivity copper windings with reinforced insulation
Impedance: 4% ± tolerance depending on model
Loss Performance: Reduced no-load and load losses in compliance with IEC 60076 energy-efficiency requirements
Protection Level: Hermetically sealed tank with pressure relief valve and high-temperature-resistant paint coating
Insulation Class: A or F class, suitable for high-temperature environments
Accessories: Oil temperature gauge, Buchholz relay (for larger capacities), conservator system (optional), and HV/LV cable terminals
Performance in Project Environment
The FSF ground facilities operate in a region characterized by high dust levels, unstable voltage supply, and extreme daytime temperatures.
To address these conditions, our transformers feature:
Enhanced thermal management to maintain stable temperature rise under continuous operation
High dielectric strength to withstand voltage fluctuations and transient surges
Rugged mechanical design for long-term outdoor use
Low noise performance suitable for populated or operational areas
Engineering Support and Implementation
Our technical team provided full support throughout the lifecycle of the project, including:
Load calculation and transformer model selection
Installation guidance and on-site technical coordination
Testing and commissioning assistance
After-sales inspection and maintenance recommendations

Conclusion
The deployment of our 10kV oil-immersed distribution transformers has significantly enhanced the reliability and efficiency of the FSF Ground Facilities power system in South Sudan. This successful operation demonstrates our capability to deliver high-performance, durable, and internationally certified power distribution solutions tailored for demanding global environments.
