Very Low Frequency (VLF) breakdown of air in non-uniform fields for varying humidity conditions

D. Rodríguez, R. S. Gorur, P. M. Hansen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The effect of humidity on the breakdown voltage of air for frequencies in the kilo-Hertz range is largely unknown, especially for larger dimensions. This is of interest for high-power communication towers that can operate in a variety of climates. The very low frequency (VLF) and low frequency (LF) bands are used for long distance communication in the range of 10-30 kHz and 30-100 kHz, respectively. Results are reported for rod/rod gaps and rod/plane gaps in the range of 125-1000 mm at a frequency of 30 kHz. The breakdown voltage at 30 kHz is observed to be markedly lower than that at 60 Hz for non-uniform field configurations with corona pre-discharges. Electric field calculations have been completed for the experimental configurations to attempt to explain the difference in breakdown voltage.

Original languageEnglish (US)
Title of host publicationCEIDP - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
Pages621-624
Number of pages4
DOIs
StatePublished - Dec 1 2009
Event2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP - Virginia Beach, VA, United States
Duration: Oct 18 2009Oct 21 2009

Publication series

NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
ISSN (Print)0084-9162

Other

Other2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
CountryUnited States
CityVirginia Beach, VA
Period10/18/0910/21/09

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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