The impact of water conductivity, electrode material, and electrode surface roughness on the pulsed breakdown strength of water

D. Wetz, J. Mankowski, D. McCauley, J. Dickens, M. Kristiansen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Experimental results are presented on the impact water conductivity, electrode material, and electrode surface roughness have on the dielectric strength of water. A 2 mm water gap was tested under pulsed conditions with maximum electric fields in excess of 1.5 MV/cm. Bruce profiled electrodes manufactured from various materials including Molybdenum, Aluminum, Copper, Tungsten, Nickel, Stainless Steel, and Zinc Oxide, which have work functions ranging from 4.2 eV to 5.3 eV, have been tested. The roughness average of the various surfaces was varied from 0.1 μm to 1.96 μm and the conductivity of the water within the gap was varied from 1 μS/cm to 39 μS/cm to determine the impact each has when tested in combination with the various electrode materials and surface roughnesses. Conclusions are made as to the effect each of these factors has on the holdoff strength of a water dielectric system.

Original languageEnglish
Title of host publication2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop)
Pages104-107
Number of pages4
DOIs
StatePublished - 2006
Event2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop) - Washington, DC, United States
Duration: May 14 2006May 18 2006

Publication series

NameConference Record of the International Power Modulator Symposium and High Voltage Workshop
ISSN (Print)1076-8467

Conference

Conference2006 IEEE International Power Modulator Conference, IPMC(27th Power Modulator Symposium and 2006 High Voltage Workshop)
CountryUnited States
CityWashington, DC
Period05/14/0605/18/06

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