Grounding Transformer

Specially engineered to provide fault detecting and voltage control in deltaconnected
systems like wind farm medium-voltage networks:

  • Provide low impedance ground path by maintaining the neutral at or near
    ground potential
  • Limit the magnitude of transient over-voltages when re-striking ground faults
  • Provide a source of ground fault current during line to ground faults
  • Provide power to a secondary load, if desired

No other manufacturer has the experience and knowledge that PCT has for
this truly engineered solution.

Style: Padmount or Substation
Range: Sized by requirement
Temperature Rise: 55°C, 65°C, 55/65°C, or as specified (75°C, consult factory)
Primary: 34.5 kV or as specified
Secondary: As Specified
Winding Material: Copper
Winding Types: Circular Layer
Core Types: Mitered Step Lap (Cruciform) Stacked
Fluids: Mineral Oil (Type II), Silicone, Envirotemp FR3, Luminol, Alpha 1

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

Download Product Brochure


  • Zig Zag
  • Wye/Delta

Optional Features

  • Current Transformers
  • Contacts on Standard Gauges
  • Pressure Relief Device
  • Winding Temperature Gauge (ANSI 49)
  • Sudden Pressure Rise Relay (ANSI 63)
  • Seal in Relay (ANSI 63X)
  • Lightning Arresters
  • Stainless Steel Construction