Current-voltage characteristics of a high-current pulsed discharge in air
- 1 April 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Plasma Science
- Vol. 16 (2) , 312-316
- https://doi.org/10.1109/27.3830
Abstract
The time-dependent arc voltage and resistance of a high-current pulsed discharge in air are obtained accurately by solving the circuit equation using the measured values of the current and breakdown voltage. Unipolar critically damped or overdamped pulsed discharges, with rise times of about 0.7 mu and peak currents in excess of 20 kA, are investigated. These discharges are characterized by four phases: initial phase, quasistationary phase, transient phase, and relaxation phase. The quasistationary phase occurs between the time of the current maximum and twice this time. The transient phase, which occurs after the quasistationary phase, corresponds to a negative slope of the V-I characteristic. The variable parameters were electrode separation, and gas pressure. The minimum arc resistance, at peak current, was about 50 m Omega .Keywords
This publication has 6 references indexed in Scilit:
- Distribution of ion energies incident on electrodes in capacitively coupled rf dischargesJournal of Applied Physics, 1985
- Point explosion simulation by fast spark dischargesJournal of Applied Physics, 1985
- Rise time and time-dependent spark-gap resistance in nitrogen and heliumJournal of Applied Physics, 1977
- The Resistance of SparksJournal of Applied Physics, 1972
- Some Properties of High Current Spark Channels†International Journal of Electronics, 1967
- High current spark channelsBritish Journal of Applied Physics, 1954