The dielectric reignition of electric fuses at small overcurrents

摘要

The dielectric recovery of a fuse model is investigated by a synthetic test circuit. The influences of the melting time and of the arc energy on the dielectric recovery strength are represented. The used fuse element is a silver band with a single notch. The electric fuses are stressed with small overcurrents. Simple models for these conditions are represented for the calculation of the arc period and the dielectric recovery.