Grounding transformer

powerdryfor industrial applications

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. Neutral grounding transformer 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. Get a Quote Now » Acutran Custom Neutral Grounding Transformer Features • Zig zag or single phase w/ grounding resistor configurations • 50, 60 & 400Hz • Up to 25kV • Copper or aluminum windings • UL-recognized insulation system for 600V class up to 220oC • Custom continuous amperage sizing and fault current carry times • Custom ohms/phase design ability • Custom enclosures with strip heaters and 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