Field dependent conductivity of n-pentane

A sensitive differential charge measurement technique was used to measure the conduction current from a sharp needle in a needle plane geometry in n-pentane. The current was measured at voltages up to the threshold for streamer inception in n-pentane with a positive needle polarity. The measured cur...

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Bibliographic Details
Published in:Proceedings of IEEE International Conference on Dielectric Liquids 2017
Main Authors: Hestad, Øystein Leif Gurandsrud, Linhjell, Dag, Lundgaard, Lars Esben, Samseth, Jarl Ø, Unge, Mikael
Format: Article
Language:English
Online Access:Request full text
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Summary:A sensitive differential charge measurement technique was used to measure the conduction current from a sharp needle in a needle plane geometry in n-pentane. The current was measured at voltages up to the threshold for streamer inception in n-pentane with a positive needle polarity. The measured current was compared to finite element models to link the recorded charge with conductivity models for the liquid. A good fit was obtained using the classical Poole-Frenkel conductivity model.