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Measurements of the dielectric recovery after interruption of currents of a few kA peak were carried out on a modified SF6 gas circuit breaker (GCB) at different strokes and in a time range between 50 ??s and few milliseconds after current zero (CZ). The GCB has been adapted to increase the dielectric stress at the plug and to allow optical observation of the plug region during the recovery. Two different...
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