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25 MVA - 300 MVA 115kV Solar Power Transformer For Sale<\/strong><\/h3>\n

This 115kV oil-immersed solar transformer<\/a> is specifically developed for modern utility-scale photovoltaic applications, providing a reliable step-down solution that bridges high-voltage collection with regional transmission networks. Rated from 25 MVA to 300 MVA, this three-phase transformer meets the diverse grid interconnection needs of large solar farms, ensuring stable and efficient energy delivery across North America and Europe.<\/p>\n

Designed with a Delta-connected 115kV primary winding, the unit supports fully customizable secondary voltage outputs\u2014commonly including 66 kV, 35 kV, 33 kV, and 11 kV\u2014depending on regional distribution requirements. The core is constructed with grain-oriented low-loss silicon steel, paired with oxygen-free copper windings to reduce core losses and enhance thermal stability under continuous solar input.<\/p>\n

Housed in a sealed, weather-resistant tank, the transformer is filled with high-grade insulating mineral oil, offering reliable thermal performance in harsh climates from Arizona deserts to northern Germany. ONAN\/ONAF cooling systems ensure long-term temperature control, while optional OLTC (On-Load Tap Changer) and SCADA-integrated monitoring systems enable remote performance optimization.<\/p>\n

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In 2022, one of our 115kV 30MVA units was deployed in a coastal solar farm in southern Portugal. Despite high salt corrosion risks and extreme summer temperatures, the unit has run flawlessly, monitored remotely from a control center in Madrid. It now serves as the model design for our European solar deployments.<\/p>\n<\/blockquote>\n

Built to IEC, IEEE, ANSI, and CSA standards, the transformer is rigorously tested for dielectric integrity, impulse resistance, and thermal cycling. Energy Transformer offers full OEM and ODM manufacturing, along with bulk delivery options across key solar markets including the United States, Canada, United Kingdom, Germany, France, Netherlands, Spain, Italy, Portugal, and Australia.<\/p>\n

Whether for grid-tied solar stations, battery energy storage integration, or hybrid PV systems, this transformer delivers the performance, safety, and efficiency required for the evolving global energy landscape.<\/p>\n

Learn More\uff1aSpecifying the Grid Gateway: A Comprehensive Guide to Selecting Power Transformers for Utility-Scale Solar Farms<\/a><\/p>\n

25 MVA - 300 MVA 115kV Solar Power Transformer <\/strong>Technical Specs<\/strong><\/h3>\n\n