Detection of Non-Destructive Pulse Currents in Polyethylene Prior to its Dielectric Breakdown
- 1 June 1985
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electrical Insulation
- Vol. EI-20 (3) , 643-645
- https://doi.org/10.1109/tei.1985.348810
Abstract
Prebreakdown, non-destructive current pulses were observed in a solid dielectric under ac voltage stress for the first time. They were detected in polyethylene using a needle-plane configuration. The needle electrode was made of carbon-filled polyethylene, to improve contact with bulk polyethylene. The observed charge pulses were less than 1 pC in magnitude, and appeared well in advance of dielectric failure or tree formation.Keywords
This publication has 2 references indexed in Scilit:
- Avalanche breakdown in n-hexaneJournal of Physics D: Applied Physics, 1979
- Treeing in Solid Extruded Electrical InsulationIEEE Transactions on Electrical Insulation, 1977