Pennsylvania Transformer Technology offers a full range of power and specialty transformers, from compact pad-mount and substation units to large generator step-up and autotransformers, with ratings from 5 MVA to 750 MVA through 765kV. The company also provides shunt reactors, and custom specialty designs engineered transformers for Utilities, Data Centers, Renewables, BESS and Industrial Applications. With decades of proven expertise, PTT delivers reliable, U.S.-assembled solutions engineered to meet demanding performance, safety, and efficiency standards.
Pennsylvania Transformer Technology provides a wide range of specialty transformers—including transit, furnace, zig-zag, and series-multiple designs—along with options for three-phase regulators and alternative fluid solutions to meet diverse utility, industrial, and infrastructure needs.
Pennsylvania Transformer Technology delivers custom-engineered pad-mount and substation transformers with capacities from 500 kVA to 7,500 kVA and voltage levels up to 46kV, combining advanced safety, efficiency, and durability features to power utilities, renewables, data centers, and industrial operations with reliable performance.
Pennsylvania Transformer Technology runs one of the only U.S. facilities delivering extra-high voltage shunt reactors, engineering oil-filled designs up to 150 MVAr and 345kV that provide reactive power compensation, voltage control, overvoltage protection, and improved grid stability for long transmission lines.
Purpose: Transmission, grid interconnection, and system voltage transformation. Ratings:69–500 kV, 50–800 MVA
Purpose: Supplying continuous, high-load power to production and process facilities. Ratings:34.5–161 kV, 10–200 MVA
Purpose: Step-up, connect and integrate renewable generation (solar farms, wind farms, battery energy storage systems) into the transmission/distribution grid. Ratings: 34.5kV low-side, high-side 115kV / 161kV / 230kV / 345kV; MVA roughly 50-500 MVA
Purpose: Stepping down and isolating power from medium/primary voltage to serve main switchgear, UPS systems, PDUs and IT loads in Tier III/IV data centers. Ratings:13.8kV – 34.5kV medium-voltage input; 480 V/400 V low-voltage output; ~ 500 kVA – 20 MVA typical
Explore PTT transformer ratings, custom configurations and solutions for utility, industrial, renewable energy and data center applications.
PTT offers large power, generator step-up and autotransformer designs, with power transformer ratings from 5 MVA to 750 MVA and voltages through 765 kV. Pad-mount and substation units are also available. Ratings depend on the product and application.
View a 345 kV transformer project.
PTT offers three-phase pad-mount and substation transformers from 500 kVA to 7,500 kVA, with primary voltages up to 46 kV. These units serve utility distribution, commercial, industrial, data center and renewable energy applications.
View pad-mount transformer specifications.
Yes. Options include copper or aluminum windings, mineral oil or natural ester fluids, live-front or dead-front construction, and loop-feed or radial-feed connections. Switching, protection, accessories and primary and secondary configurations can be tailored to project requirements.
Explore pad-mount design options.
Yes. PTT offers transit, furnace, unit substation, zig-zag and series-multiple designs, plus three-phase regulators and alternative fluid solutions for utility, industrial and infrastructure applications.
Discuss a specialty transformer application.
Yes. PTT provides transformers for solar and wind grid interconnections and battery energy storage systems (BESS). Product selection and ratings depend on the project.
Discuss a renewable energy or BESS project.
Yes. PTT serves data center applications with power and distribution transformer solutions, including pad-mount units. Contact PTT to review the electrical requirements of your facility.
Explore pad-mount solutions for data centers.
PTT extra-high-voltage (EHV) shunt reactors absorb excess reactive power, help control voltage rise and support transmission system stability. PTT offers U.S.-assembled, gapped-core, oil-filled designs rated up to 150 MVAr, with voltages through 765 kV and compliance with IEEE C57.21.
Learn about PTT shunt reactors.
Contact PTT’s engineering, sales or technical services teams to discuss your power transformer application and request assistance.
Contact PTT for product assistance.
Need help selecting a transformer? Contact PTT to discuss your project, or call (724) 873-2100.
Need assistance or want to discuss how our power transformer solutions can support your utility or industrial project? Contact Pennsylvania Transformer Technology, a U.S.-based leader in transformer design—reach us below to get expert help from our engineering, sales, or technical services teams.
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