IEEE C57-104 Workgroup Meeting Case Studies on High Voltage Faults and Mitigation Strategies

Feb 07, 2026

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This document outlines the key findings from the IEEE C57-104 Workgroup meeting held in Milwaukee, WI. It discusses case studies on various electrical faults, including lightning strikes, turn-to-turn winding faults, and unintended core ground faults. The workgroup emphasizes the importance of sagging ground straps and their role in grounding issues. Recommendations for mitigating high voltage phase-to-ground faults and ensuring reliable operation of transformers and tap changers are also presented.

1 high voltage faults2 lightning strike mitigation3 grounding issues4 transformer faults5 tap changer faults6 sagging ground straps7 electrical reliability8 core ground faultstext

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IEEE C57-104 Workgroup Meeting Case Studies on High Voltage Faults and Mitigation Strategies

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