TY - GEN
T1 - Very Low Frequency (VLF) breakdown of air in non-uniform fields for varying humidity conditions
AU - Rodríguez, D.
AU - Gorur, R. S.
AU - Hansen, P. M.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - 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.
AB - 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.
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U2 - 10.1109/CEIDP.2009.5377706
DO - 10.1109/CEIDP.2009.5377706
M3 - Conference contribution
AN - SCOPUS:77949279993
SN - 9781424445592
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 621
EP - 624
BT - CEIDP - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
T2 - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Y2 - 18 October 2009 through 21 October 2009
ER -