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