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Equation for calculate maximum electric field of DC air breakdown.
Posted Feb 1, 2021, 10:58 a.m. EST Electromagnetics Version 4.3, Version 5.6 1 Reply
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Hi everyone, The equations used for estimate the maximum value of electric field of AC air breakdown are: For point-plane electrode configuration: Emax=2V/rln(4d/r). For sphere-plane electrode configurations: Emax=k(Uc/d)(r+d/r). Where: Uc: breakdown voltage, r = tip radius, d = gap length, k = 0.9.
I want to calculate maximum electric field for DC air breakdown in the both electrode configurations. So, I need to the equation used for estimate it, please.
Cordially.
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The report below may not fully answer your questions, but it may be useful to you in better understanding the field enhancement factors. Title: "Electric Field between Two Spheres and other Canonical Objects," by S.D. Nelson, May 14, 2019, Report LLNL-TR-774256. https://www.osti.gov/servlets/purl/1515355
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