Industrial Test Transformers

In industrial manufacturing, the job is not done until the product passes the test. Global manufacturers of items such as pumps, drives, and generators build products for use in many different electrical systems, which requires testing of operation at both 50 and 60 Hz and a multitude of voltage combinations.

A configurable transformer is an essential component of their test lab. High reliability means less factory downtime and reduces revenue losses due to downtime.

Each manufacturer will have unique requirements. PCT’s engineering team will work closely with you to determine the voltages, phasing, and switching capability you need to provide the Right Transformer for the job.

Style: Padmount or Substation
Range: 75 kVA to 30,000 kVA, 50 or 60 Hz
Temperature Rise: 55°C, 65°C, 55/65°C, or as specified (75°C, consult factory)
Primary: 5 kV to 138 kV
Secondary: Up to 46 kV (6500A maximum)
Winding Material: Copper or Aluminum
Winding Types: Circular Layer, Circular Disk, Rectangular Layer
Core Types: Mitered Step Lap (Cruciform or Rectangular) Stacked, 5-Legged Wound
Fluids: Mineral Oil (Type II), Silicone, Envirotemp FR3, Luminol, Alpha 1


  • Generator Step-Up
  • Multi-Voltage/Multi-Tap
  • Switchable Delta/Wye Configurations
  • Class 1 Div II/Marine/Corrosive Environments
  • Seismic Conditions and Anchoring
  • Captive Duty
  • Retrofit Replacement
  • Auto Transformer
  • Isolation

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Standard Features

  • Magnetic Liquid Level Gauge (ANSI 71)
  • Oil Temperature Gauge (ANSI 26)
  • Pressure/Vacuum Gauge
  • No-Load Tap Changer (when required)
  • Pressure Test and Upper Filter Press (1” connection)
  • Corrosion Resistant Nameplate
  • Provisions for Jacking and Lifting
  • Base Suitable for Rolling or Skidding
  • Drain and Sampler Valve
  • Pressure Relief Valve

Optional Features

  • Current Transformers
  • Contacts on Standard Gauges
  • Pressure Relief Device (standard over 3 MVA)
  • Winding Temperature Gauge (ANSI 49)
  • Sudden Pressure Rise Relay (ANSI 63)
  • Seal in Relay (ANSI 63X)
  • Forced Air Cooling
  • Lightning Arresters
  • Load Break and Multi-Voltage Switches
  • Stainless Steel Construction
  • Close-Coupled Transitions
  • Digital Transformer Monitor