Some Observations on the Character of Corona Discharges in Short Gap Spaces

Corona discharge results, obtained with a number of gases under atmospheric pressure using plane-parallel metallic and dielectric electrodes placed between 0.05 and 9.00 mm apart, are discussed. With short gap spacings, deviations from the pulse or spark-type discharge mechanism are observed to occur in particular when dielectric surfaces are involved; the deviations are characterized usually by the appearance of pseudoglow discharges, which exhibit properties that are common to both pulse and glow discharges. The practical significance of pseudoglow discharges in relation to corona measuring techniques, utilizing conventional pulse discharge detectors, are considered both on a short-and long-term test basis.

[1]  J. R. Perkins,et al.  Surrace and Volume Phenomena in Dielectric Breakdown of Polyethylene , 1963 .

[2]  R. Bartnikas,et al.  Improved Pulsed Discharge Rate Measuring Apparatus for Ionization Discharge Studies at Low Frequencies , 1966 .

[3]  The measurement and influence of surface charges on the inception voltage between dielectric and metal dielectric surfaces , 1960 .

[4]  W. Rogowski,et al.  Ebene Funkenstrecke mit richtiger Randausbildung , 1926 .

[5]  Thomas W. Dakin,et al.  The Relation of Capacitance Increase with High Voltages to Internal Electric Discharges and Discharging Void Volume , 1958, Transactions of the American Institute of Electrical Engineers Part III Power Apparatus and Systems.

[6]  A. W. Stannett,et al.  Degradation of Insulation Materials by Electrical Discharges , 1964 .

[7]  J. H. Mason.  Breakdown of insulation by discharges , 1953 .

[8]  E. Mcmahon.  The Chemistry of Corona Degradation of Organic Insulating Materials in High-Voltage Fields and under Mechanical Strain , 1968, IEEE Transactions on Electrical Insulation.

[9]  T. W. Dakin,et al.  A Capacitance Bridge Method for Measuring Integrated Corona-Charge Transfer and Power Loss per Cycle , 1960, Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems.

[10]  R. Bartnikas,et al.  A Simple Pulse-Height Analyzer for Partial-Discharge-Rate Measurements , 1969 .

[11]  R. Bartnikas,et al.  Discharge rate and energy loss in helium at low frequencies , 1969 .

[12]  R. Bartnikas,et al.  A Study of Corona Discharge Rate and Energy Loss in Spark Gaps , 1965 .

[13]  R Bartnikas,et al.  Note on discharges in helium under a.c. conditions , 1968 .

[14]  R. Bartnikas,et al.  Note on ac Discharges between Metallic‐Dielectric Electrodes in Helium , 1969 .