As the demand for reliable electrical infrastructure continues to grow, utilities, data centers, renewable energy developers, and industrial facilities need transformer providers they can depend on. Pennsylvania Transformer Technology (PTT) has been engineering, designing, building, and servicing high-voltage power transformers for nearly a century, providing engineered solutions for some of the nation's most demanding power applications.
Founded in 1929, Pennsylvania Transformer Technology brings almost 100 years of engineering expertise to the power industry. This long history has established the company as a trusted supplier of high-voltage transformer solutions across North America.
PTT's headquarters sits on a 1,000,000-square-foot, 18-building campus in Canonsburg, PA - a site with transformer manufacturing history dating back to 1946 and previously home to McGraw-Edison and Cooper Power Systems. The scale of this facility allows PTT to handle large, complex transformer builds entirely in-house.
Beyond Pennsylvania, PTT operates a second domestic plant in Raeford, NC, built in 1992. Having two U.S.-based production sites gives the company added capacity and flexibility, and reinforces its position as a U.S.-operated alternative to overseas transformer suppliers.
Pennsylvania Transformer Technology designs and builds oil-filled power transformers ranging from 500 kVA to 750 MVA with voltage ratings through 765 kV. These products support electric utilities, transmission systems, industrial operations, renewable energy projects, and data centers.
Every electrical system has unique requirements. PTT produces a wide range of specialty transformers, including:
These custom-engineered solutions help customers meet demanding performance and reliability requirements.
Production is only part of the equation. PTT backs its transformers with end-to-end Power Solutions services, including OEM replacement parts, field service, engineering support, and lifecycle upgrades designed to extend equipment reliability and performance over time.
This comprehensive support helps customers maximize transformer lifespan and reduce downtime.
One advantage of PTT's service organization is its ability to support equipment from virtually every major transformer producer - not just its own products. The company also supplies replacement parts for several legacy brands and provides field engineering services nationwide.
PTT designs transformers for industries experiencing rapid infrastructure expansion, including:
Its broad product portfolio allows the company to support projects ranging from utility substations to hyperscale data centers.
The company's engineering team uses decades of historical design data combined with modern analytical tools to perform:
These services help customers improve system performance and plan long-term asset management.
Both of PTT's domestic plants operate under ISO-certified processes, giving customers documented quality assurance at every stage of transformer design and manufacturing - an important consideration for utilities and industrial buyers evaluating long-term equipment partners.
PTT also provides transformer and high-voltage breaker decommissioning and recycling through its Green Core division, helping utilities and industrial customers safely retire aging equipment while meeting environmental and regulatory requirements.
As a Quanta Services company, Pennsylvania Transformer Technology combines decades of transformer expertise with the resources of one of North America's leading infrastructure companies. This enables the company to support large-scale utility, industrial, and energy projects with engineering, manufacturing, and field service capabilities.
When selecting a power transformer provider, customers look for proven experience, domestic experience, engineering expertise, and dependable field support. Pennsylvania Transformer Technology delivers all of these through its broad range of high-voltage transformer products, nationwide service capabilities, and nearly 100 years of industry experience. Whether you're building new electrical infrastructure or extending the life of existing assets, PTT provides engineered transformer solutions designed for long-term reliability. Sample text. Click to select the Text Element.
CANONSBURG, PA OPERATIONS The former site of McGraw-Edison and Cooper Power Systems transformer operations has undergone extensive modernization to make it a state-of-the-art transformer production facility
Location • 30 Curry Avenue, Canonsburg, PA 15317• 20 miles from Greater Pittsburgh International Airport• Near the intersection of Interstate Highways 79 and 70• Visible From I-79 at Canonsburg Exit 45 Plant • 90 Acres of Land • 18 Buildings, 1 million square - feet Features • Test Capability: 765 kV, 2400 kV BIL • 500 Tons of Lifting Capacity • North America’s largest GEORG Automatic Core Cutting and stacking Line • 200,000 square-foot Tank Fabrication Bay• Certified ISO 9001:2015 with Design
RAEFORD, NC OPERATIONS Our Raeford, NC facility was built in 1992 and is devoted to the production of small power transformers and distribution transformers
Location • 201 Carolina Dr., Raeford, NC 28376• 20 Miles From the Fayetteville, NC Airport• 2 Hours from Raleigh, NC Airport• 10 Acres of Land• 56,000 square - feet Features • Test Capability: 161kV, 650 kV BIL• 60 Tons of Lifting Capacity• Vacuum Oil Filling• Vapor-phase Processing• Oil De-aeration Facility
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