Title

On the Calculation of Breakdown Voltages for Uniform Electric Fields in Compressed Air and SF6

Document Type

Article

Publication Date

1-1-1988

Abstract

Several empirical formulae suggested in the literature have long been used for estimating the breakdown voltage of uniform field gaps in compressed air and SF6. These formulae were tailored to fit experimental measurements. A novel method is described for calculating the breakdown voltage of uniform field gaps in compressed air and SF6 without the need for experiments. This method is based on the criterion of self-recurring single electron avalanches developed in the gap. The results computed by this method for pd values to the right of Paschen’s minimum (up to 15 kPa·m in air and up to 5 kPa·m in SF6) are in good agreement with those measured experimentally. © 1988 IEEE

Publication Title

IEEE Transactions on Industry Applications

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