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GroundingTransformer

Why Dry-Type Grounding Transformers Mostly Use Zig-Zag Connection?

Dry-type grounding transformers are widely designed with Zig-Zag connection , because this winding structure offers high excitation impedance to positive- and negative-sequence currents during normal operation, while providing low impedance to zero-sequence currents during single-phase earth faults

By Rockwill 10/15, 2026

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Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

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Why Dry-Type Grounding Transformers Mostly Use Zig-Zag Connection?

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