Title :
Dielectric Breakdown of Polyparabanic Acid (PPA) Film under Square Pulse Conditi ONS
Author :
Yoshimura, N. ; Noto, F.
Author_Institution :
Department of Electrical Engineering Akita University Akita, Japan
Abstract :
The dielectric breakdown characteristics of polyparabanic acid (PPA) film were investigated in a temperature range from 20 to 300°C, under square pulse conditions. The temperature dependence of the breakdown strength shows two distinct regions, referr-ed to as I (20-150°C) and II (150-300°C). In region I, the breakdown appears to be due to an electron avalanche mechanism. In region II, impulse thermal breakdown due to Poole-Frenkel effect of electrons appears to be a likely mechanism.
Keywords :
Breakdown voltage; Dielectric breakdown; Electric breakdown; Electrodes; Electrons; Space vector pulse width modulation; Temperature dependence; Temperature distribution; Testing; Wire;
Journal_Title :
Electrical Insulation, IEEE Transactions on
DOI :
10.1109/TEI.1983.298582
