São Paulo Underground Distribution
Americas
22 pad-mounted transformers for São Paulo underground distribution network, improving reliability for 800,000 residents.
View Details12 custom step-up transformers for Dubai 700MW solar farm, supporting UAE clean energy strategy.
The Dubai Solar Farm, one of the largest single-site solar PV projects in the Middle East, required specialized step-up transformers to handle inverter-based generation. Transformer Co. delivered 12 custom-designed transformers optimized for solar applications.The 700MW solar farm contributes to Dubai Clean Energy Strategy 2050, powering approximately 240,000 homes with clean energy.
Operating in a tropical climate with extreme heat and humidity presented significant engineering challenges. Standard transformer designs would struggle under ambient temperatures regularly exceeding 40°C, requiring specialized insulation systems and robust cooling solutions to maintain reliable performance. Additionally, the logistics of delivering oversized equipment weighing over 120 tons each to sites in Lagos and the landlocked capital Abuja demanded innovative transport planning and modular packaging strategies to navigate Nigeria's road infrastructure.
We engineered custom-designed insulation systems rated for 55°C ambient temperature, exceeding the standard 40°C rating by a significant margin. Enhanced ONAF cooling with additional radiator banks was implemented to ensure optimal thermal management under peak load conditions. For logistics, we developed a modular packaging approach that allowed road transport to remote locations, with components reassembled on-site. Our engineering team provided comprehensive site supervision throughout the 18-month installation period, ensuring every unit was commissioned to exacting standards.
| Parameter | Specification |
|---|---|
| Transformer Rating | 120MVA |
| High Voltage | 132kV |
| Low Voltage | 33kV |
| Frequency | 50Hz |
| Cooling | ONAN/ONAF |
| Vector Group | YNd11 |
| Tap Changer | On-load (OLTC) |
| Impedance | 14% |
| Ambient Temperature | 55°C (design) |
| Transport Weight | ~120 tons |
Residents with improved electricity access
Reliability rate achieved
On-time delivery
Major incidents since commissioning
Transformer Co. engineered a solution specifically for our solar application, addressing harmonics and thermal challenges. Their expertise in renewable energy transformers is outstanding. — Technical Director, Dubai Solar Project
— Chief Engineer, Nigerian Federal Ministry of Power
Our engineering team can design the optimal transformer solution for your infrastructure project.
Americas
22 pad-mounted transformers for São Paulo underground distribution network, improving reliability for 800,000 residents.
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Asia
15 dry-type transformers for Mumbai industrial park indoor substations, ensuring fire safety for manufacturing facilities.
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Africa
Supply of 8 units 132kV power transformers for TCN Lagos substation, supporting grid expansion in Nigeria.
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