Nanosecond surface discharge study by using Dust figure techniques
- 1 April 1973
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 44 (4) , 1576-1580
- https://doi.org/10.1063/1.1662414
Abstract
The developing mechanisms of the positive and negative corona streamers on the insulation surface have been studied by using the Dust figure technique together with a line pulser. The present method has the advantage of measuring the velocity of corona discharge development and the discharge mechanism, because the distributions of the positive and negative charges in the discharge figure can be colorfully separated and recorded. By applying shorter time pulses from 10- to 920-nsec duration to a needle point where a glass plate is sandwiched in between the needle and plate electrodes, the diameter of the recorded discharge and the charge quantities and their distributions against the pulse duration were obtained. The observed average velocities of the developing corona streamers at a voltage of 12.0 kV were 2.05×108 cm/sec in the positive and 0.63×108 cm/sec in the negative, respectively. Moreover, when the negative pulse voltage was applied to the needle point the formation time lag of the cathode fall was about 10 nsec and the resulting high densities of the positive and the negative charges induced a back discharge.This publication has 8 references indexed in Scilit:
- The study of surface-discharge phenomena using ring-type electrodesBritish Journal of Applied Physics, 1967
- The velocity of streamer tips in impulse point-to-plane corona in air, using Lichtenberg figure techniquesThe European Physical Journal A, 1964
- Streamer Mechanism and Main Stroke in the Filamentary Spark Breakdown in Air as Revealed by Photomultipliers and Fast Oscilloscopic TechniquesPhysical Review B, 1961
- Zeitliche Entladungsentwicklung im ungleichf rmigen Feld bei positiver Spitze in atmosph rischer LuftElectrical Engineering, 1959
- "Heat developed" and "powder" Lichtenberg figures and the ionization of dielectric surfaces produced by electrical impulsesBritish Journal of Applied Physics, 1951
- Impulse Breakdown in the-Sec. Range of Air at Atmospheric PressurePhysical Review B, 1949
- The Atomphysical Interpretation of Lichtenberg Figures and Their Application to the Study of Gas Discharge PhenomenaJournal of Applied Physics, 1939
- Über die physikalischen Grundgesetze der in der Isolatorentechnik auftretenden elektrischen GleiterscheinungenElectrical Engineering, 1921