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Are You Grounded?

Do you have a custom application or a required ground for a delta connect or an ungrounded wye?

Acutran can design, manufacture and deliver a custom neutral grounding transformer - built specifically to your requirements - in as little as 4 weeks. Call us now for a quote at 412-452-4130.


Protect Your Power System

Dry-type zig zag grounding transformers are another example of Reliable Custom Transformers being built by Acutran.    

Neutral grounding dry-type transformers are special purpose transformers that provide a grounding path for a delta connection or an ungrounded wye.

Generally used to protect an isolated 3-phase system in the event of a line-to-ground fault, grounding transformers provide a lower impedance path-to-ground for ground faults which shields the non-faulted phases from voltage spikes.

Zig zag units aren’t typically used in commercial or industrial applications because they do cost a little more than your conventional dry-type transformer. But if you need a ground – this is the way to go.


Acutran Custom Neutral Grounding Dry-Type Transformer Features

  • Zig zag or two-winding configurations
  • 50, 60 & 400Hz 
  • Up to 25kV
  • Copper 
  • UL-recognized insulation system for 600V class up to 220°C
  • Custom continuous amperage sizing & fault current carry times
  • Custom ohms/phase design ability 
  • Custom enclosures with strip heaters & thermostats to reduce condensation


How to Spec a Zig Zag Transformer

  • Continuous neutral current
  • Neutral fault current and duration
  • Line voltage and BIL
  • Impedance requirement
  • Temperature rise
  • Enclosure type
  • Special items



Call for a Quote: 412-452-4130