With over 100 years of experience, utilities worldwide trust Delta Star for our industry-leading designs, high-performance components, and quality engineering. Check out our products and services below to learn about our innovative solutions to suit your energy needs.
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Delta Star is the largest, American-owned medium power transformer manufacturer in the United States and the premier manufacturer of mobile transformers and mobile power substations in North America.
Delta Star has manufacturing locations in Lynchburg, Virginia, San Carlos, California, and Quebec, Canada, as well as a separate field service location in Forest, Virginia.
Delta Star provides power solutions for utilities across North America. This includes the manufacturing of medium-power transformers, mobile transformers, mobile electrical substations, trailers, and unitized substations. We offer power transformers for utility applications including power and distribution, transmission voltages, system ties, and automatic voltage regulations, as well as industrial applications. Delta Star also provides comprehensive engineering, testing, maintenance services, and parts for any transformer manufacturer through our Field Service business unit, ensuring our customer’s transformers and mobiles maintain peak performance.
At Delta Star, quality begins with our engineers and craftsmen, who have decades of experience designing and building the most complex power transformers in use today. We have over 8,000 transformers in the field—and along with our dedication to quality, using components of the highest standard, and low failure rates, we enjoy the greatest amount of repeat business from our customers.
Delta Star power transformers and mobile substations are each individually designed and manufactured to meet our customer’s specifications and exceed expectations. With more than a century in the power industry and over 50 years of manufacturing mobile transformers, our unmatched experience and quality products make Delta Star the choice for power companies around the world.
As the premier manufacturer of mobile transformers and mobile substations in the United States, Delta Star is the market leader in turnkey power grid substation solutions for investor-owned utilities, electric cooperatives, and municipals.
Delta Star mobile transformers and substations are engineered and tested to surpass power industry standards and deliver the efficiency, reliability, and plug-and-play capability today’s utilities rely on. Fully customizable and ready to deploy, our mobile transformers and substations lead the industry in durability and performance.
Delta Star Field Service has extensive experience in the installation, commissioning, maintenance, troubleshooting, diagnosis & repair of power transformers up to 800kV. Our technicians and technical management personnel have been directly involved with supporting and/or managing the installation and repair of thousands of transformers throughout their combined careers.
In addition to our breadth of transformer service portfolio offerings we have a specialized team of Load Tap Changer (LTC) experts with an average tenure of 20 years of industry experience. These experts are fully fluent in the inspection, maintenance, overhaul, and retrofit of the majority of the makes and models in the US market.