Abstract

The voltage stabilizers are considered as promising additives to improve the overall properties of polymeric cable insulations. In this study, 0.5, 1, and 3 wt% of 3-aminobenzoic acid voltage stabilizer are added to cross-linked polyethylene insulation. The insulation properties such as DC breakdown strength, space charge, surface potential decay, dielectric loss, and dielectric constant are measured. The results illustrate that the 1 wt% voltage stabilizer addition yields the maximum DC breakdown strength. Furthermore, it exhibits the negligible space charge accumulation and the least electrical field distortion within the insulation bulk. The dielectric measurements show that the XLPE with 1 wt% voltage stabilizer exhibits the least dielectric constant and dielectric loss. Moreover, rapid surface potential decay is observed in 1 wt% amongst all the samples.

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