Delta Star

Industry-Leading Power Solutions for the Electric Grid


Utilities Worldwide Trust Delta Star for Our Reliable and High-Performing Power Solutions

Delta Star's History of Excellence

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.

Power Transformers
Delta Star stands out among other manufacturers with our fully customizable power transformers which exceed industry standards.
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Mobile Transformers
Mounted on trailers or skids, Delta Star’s fully customizable mobile transformers deliver the reliable performance, convenience and durability utilities need.
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Substation Solutions
Designed to enhance substation efficiency and reduce operational costs, our power substation solutions are engineered for performance, reliability and safety.
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Field Service
Our expert field technicians provide rapid response times and nationwide coverage on installation, maintenance and repair of transformers and mobile substations.
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As the one-stop shop for all of your power solutions, we have everything from standard parts and kits to hard-to-find items to keep your customers powered.
Find your missing parts
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    Who is Delta Star?

    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.