Polymer insulators, such as polyethylene PE and polypropylene PP, are widely used as
insulating materials. For this reason a considerable amount of attention has been paid in …

Electrical wear-out and dielectric breakdown of insulating polymers involve dissipation to the
lattice of the energy of mobile or trapped space charges. Optical emissions are proof of such …

As a core component of AC drive electric locomotive, performance of inverter-fed motor
directly influences the stability and reliability of locomotive running. However, insulation …

The aging of epoxy electrical insulation by unipolar, repetitive voltage surges has been
investigated to determine whether such surges can precipitate premature failure of high …

Epoxy resins blended with micro-sized alumina show more compact surface condition and
exhibit lower light emission after modified in fluorinated atmosphere. Surface morphology …

An extensive statistical accelerated aging experiment, involving a total of 180 unfilled type
epoxy specimens, has been conducted to determine the number of voltage surges required …

The undetermined surface flashover of insulators limits the development of ultra-high
voltage AC gas insulated equipment. In this paper, we report a micro discharge potentially …

Time-resolved space charge (SC) and electroluminescence (EL) measurements are carried
out on polyethylene films stressed under ac voltage at industrial frequency to probe …

This paper examines the mechanism of electrical degradation and breakdown of polymeric
insulating films as a sequence of electron injection by Fowler-Nordheim tunnelling, and …

A kinetic model of time-dependent dielectric breakdown for polymers is presented. The
micromechanism of thermally activated bond-breakdown is developed for polymers to …