Zig-Zag Grounding Transformer for Neutral Grounding

Spectrum Industries' three-phase zig-zag grounding transformers provide a reliable, lower-cost method of deriving an artificial neutral for grounding photovoltaic systems and other ungrounded or delta-connected power systems. By establishing a stable neutral point, these zig-zag grounding transformers protect your solar array and downstream equipment from damaging ground-fault currents, reduce transient overvoltages, and support accurate current-transformer metering for system monitoring.

Rated up to 1000VA with voltage classes up to 25kV and 150kV BIL, our dry-type zig-zag transformers are available with copper or aluminum windings and VPI (vacuum-pressure impregnation) insulation for long-term reliability in demanding outdoor and industrial environments. With insulation classes of 150, 180, and 220 available, along with custom impedance, current, and X/R ratio configurations, Spectrum Industries can match a zig-zag grounding transformer to the specific electrical characteristics of your photovoltaic or industrial power system.