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
Main Authors: Hestad, Oystein L., Linhjell, Dag, Lundgaard, Lars E., Samseth, Jarl O., Unge, Mikael
Format: Conference Proceeding
Language:English
Subjects:
Conductivity
Conductivity measurement
Current measurement
Dielectric liquids
Electrodes
Field-dependent conductivity
Finite Element Modeling
Liquids
Needles
Pre-inception current
Streamers
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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.
ISSN:2153-3733
DOI:10.1109/ICDL.2017.8124606