Suppression of Ground-Fault Arcs on Single-Pole-Switched EHV Lines by Shunt Reactors

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Abstract
Arcing line-to-ground faults isolated by single-pole switching are maintained by capacitive coupling between the faulted and unfaulted phases. Such faults are difficult to extinguish on long EHV (extra-high-voltage) lines because the fault A promising remedy consists of neutralizing the capacitive coupling by shunt reactors, which are required anyhow on many lines for compensating the normal charging current.