Pennsylvania Transformer Technology LLC

Pennsylvania Transformer Technology, LLC (PTT) is a U.S.-headquartered power transformer manufacturer and a Quanta Services company. Founded in 1929, PTT brings nearly a century of experience to the design and production of oil-filled transformers and specialty equipment. Its engineered solutions range from 500 kVA to 750 MVA and are rated through 765 kV, serving electric utilities, data centers, renewable energy and battery storage projects, and industrial applications.

PTT manufactures at two U.S. facilities: its headquarters in Canonsburg, Pennsylvania, and a production plant in Raeford, North Carolina. Its product lineup includes power transformers, pad-mount and mobile transformers, extra-high-voltage shunt reactors, and green core breakers. The company also supports customers throughout equipment life cycles with replacement parts, field service, engineering, technical support, upgrades, and transformer servicing.

PTT’s facilities use ISO-certified quality processes, including ISO 9001:2015 with design certification at Canonsburg. Drawing on established expertise and modern manufacturing capabilities, the company focuses on reliable equipment and support for complex power system needs.