Pennsylvania Transformer Technology, LLC
PAD-MOUNT  DISTRIBUTION TRANSFORMERS

Power You Can Trust — Pad-Mount & Substation Transformers Up to 7,500 kVA, Built for Performance

HV Power Transformer 40 MVA, 3-Phase
Transforming Power with Proven Reliability

When power and reliability matter most, Pennsylvania Transformer Technology (PTT), a Quanta Services company, delivers. PTT offers a full range of three-phase, pad-mount, and substation transformers engineered to meet your exact requirements. With capacities from 500 kVA to 7,500 kVA and voltage levels up to 46kV, our solutions are built to perform under the most demanding conditions.

PTT’s pad-mount and substation units are designed with the features that matter: rugged, weather-resistant metal enclosures, robust thermal and insulation systems, and bottom-entry underground cable connections—making them ideal for underground distribution networks, commercial campuses, industrial sites, or urban infrastructure. Our transformers provide efficient, reliable voltage conversion from medium-voltage distribution lines to usable levels for residential, commercial, or industrial loads. This ensures not just stable power delivery, but also minimized energy loss and long-term operational reliability.

Engineered Power You Can Trust — Pad-Mount Transformers

Capacities from 500 kVA to 7,500 kVA and voltage levels up to 46k

Choose between copper or aluminum windings and Type II mineral oil or natural ester fluids, ensuring the perfect balance of efficiency, durability, and sustainability. Whether it’s for solar, wind, battery storage, data centers, utilities, or industrial operations, PTT transformers are tailored to power your success. Whether your project is in solar, wind, battery storage, data centers, utilities, or heavy industrial operations, PTT transformers can be tailored — from winding material and fluid type, to voltage and kVA rating — to precisely match your power-distribution needs, optimizing efficiency, safety, lifespan, and sustainability. Let PTT help you power your success — with flexibility, performance, and responsibility built in.

​MVA Ratings

Wide Capacity Range From 500 to 7,500 kVA - Voltage up to 46kV

Cooling System Options

Pad-Mount Transformers
Flexible Design Options

Voltage Rating

Advanced Core Technology,
Enhanced Safety Features

Impedance

High-End Fabrication Quality,
Sustainable Fluid Choices

Why Choose PTT’s Pad-Mount Distribution Power Transformers?
  • Enhanced Safety: Hot-stick operation and dead-front options protect personnel.
  • Longer Service Life: Electrostatic shielding reduces transient damage and harmonic disruptions.
  • Sustainable Solutions: Natural ester fluid options improve fire safety and environmental profile.
  • Lower Maintenance Costs: Corrosion-resistant tank options, precision welding, and rugged design.
  • Designed For Multiple Applications: Tailored for solar, wind, battery storage, and high-load data centers.
Key Features & Custom Configurations Include
  • Three-legged, step-lap cores for efficiency
  • Loop-feed or radial-feed connections
  • Live or dead front application
  • Electrostatic shielding to protect sensitive equipment
  • Robotic welding for leak-free reliability
  • Corrugated tanks or detachable radiators for long service life
  • Tamper-proof cabinets with underground connections
Ask How PTT Can Deliver on Your Power Transformer Specifications