EFFECT OF ELECTRODE ICE LAYER ON PREBREAKDOWN CURRENT IN LIQUID-NITROGEN

Authors
HANAOKA R ISHIBASHI R USUI Y NAGAKI D
Citation
R. Hanaoka et al., EFFECT OF ELECTRODE ICE LAYER ON PREBREAKDOWN CURRENT IN LIQUID-NITROGEN, IEEE transactions on dielectrics and electrical insulation, 1(4), 1994, pp. 741-746
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on dielectrics and electrical insulation → ACNP
ISSN journal
10709878
Volume
1
Issue
4
Year of publication
1994
Pages
741 - 746
Database
ISI
SICI code
1070-9878(1994)1:4<741:EOEILO>2.0.ZU;2-Y
Abstract
The effect or ice on dc prebreakdown events was investigated using a n eedle-to-plane electrode system in liquid nitrogen at 77.3 K. It was f ound that H2O ice has marked effects on prebreakdown current, corona o nset voltage and breakdown voltage. The breakdown voltage at atmospher ic pressure depends on microscopic cracks in H2O ice.