COVID-19 Update: We are currently shipping orders daily. However, due to transit disruptions in some geographies, deliveries may be delayed. To provide all customers with timely access to content, we are offering 50% off Science and Technology Print & eBook bundle options. Terms & conditions.
Gaseous Dielectrics - 1st Edition - ISBN: 9780080346939, 9781483191072

Gaseous Dielectrics

1st Edition

Proceedings of the Fifth International Symposium on Gaseous Dielectrics, Knoxville, Tennessee, U.S.A., May 3—7, 1987

Editors: Loucas G. Christophorou Don W. Bouldin
eBook ISBN: 9781483191072
Imprint: Pergamon
Published Date: 1st January 1987
Page Count: 702
Sales tax will be calculated at check-out Price includes VAT/GST
Price includes VAT/GST

Institutional Subscription

Secure Checkout

Personal information is secured with SSL technology.

Free Shipping

Free global shipping
No minimum order.


Gaseous Dielectrics V presents the proceedings of the Fifth International Symposium on Gaseous Dielectrics, held in Knoxville, Tennessee on May 3–7, 1987. This book discusses the effective coupling between basic and applied research and technology achieved in this area. Organized into 12 chapters, this book begins with an overview of the status of theoretical calculations of excitation and ionization coefficients for electrons. This text then provides an extensive investigation into different phases of discharge development in electronegative gases. Other chapters consider the use of sulfur hexafluoride as a dielectric medium in rail systems and gas circuit breakers. This book reviews as well the primary requirements for a successful gas analysis program, with emphasis on measurement and interpretation methods. The final chapter deals with the progress in dielectric quality assurance of gas insulated substations (GIS), which has resulted from improved scientific knowledge of significant phenomena. This book is a valuable resource for electrical and electronics engineers.

Table of Contents

Chapter 1: Basic Physics of Gaseous Dielectrics

Excitation and Ionization Coefficients


Laser-Enhanced Electron Attachment and Its Possible Application for Optical Switching


Galvanooptical Measurement of Photodetachment from Negative Ion Swarms in Oxygen


Electron Collision Cross Sections for C2F6 and N2O


A Macroscopic Model of Electron Swarm Motion in Non-Equilibrium Regions

Non-Equilibrium Description of Electrons in a Gas Influenced by Space-Time Varying Electric Fields

Temperature Dependent Electron Transport and Rate Coefficient Studies for e-Beam-Sustained Diffuse Gas Discharge Switching

Time Dependent Conductivity Studies of Electron Thermalisation in Simple Gases

Chapter 2: Basic Mechanisms

Breakdown Mechanisms in Electronegative Gases


Predischarge Development in N2 and SF6 at High Gas Pressures


Effect of Temperature on the Uniform Field Breakdown Strength of Electronegative Gases


The Influence of Thermal Ionization on Electrical Breakdown


Contribution to a Unified Theory of the Leader Processes


Mechanism of a Short Gap Breakdown

Experimental Investigation of the Streamer to Leader Transition in SF6 Under Negative Polarity

Modeling of Leader Branching in Electronegative Gases

The Leader Inception Characteristics in Positive Sphere-Plane Air Gaps

Velocity Measurements in Mixtures of SF6 and N2 in Non-Uniform Field Gaps Under Positive Impulse Voltage

Chapter 3: Gas Decomposition/Reacnons/Toxicity

Decomposition of SF6 by Arc Discharge and the Determination of tne Reaction Product S2F10


Corona-Induced Decomposition of Dielectric Gases


Investigations of the Toxicological Action of Spark-Decomposed SF6 in Mammalian Cells


Degradation of the Dielectric Properties of SF6 Due to the Presence of Gaseous Impurities; Deviations of the "Paschen's Law" at High Pressures for Positive Polarity


The Influence of Impurities on the Dielectric Strength of SF6 for Positive Polarity; The Nature of Initiatory Electrons

Formation and Stability of SF5 and S2F10

SOF4 Production in Spark Breakdown of SF6/O2 Mixtures

Assay of SF6 and Spark-Decomposed SF6 for Mutagenic Activity in the CHO/HGPRT Mammalian Cell System

Chapter 4: Diagnostics/Field Probes

Gas Analysis as a Diagnostic Tool for Gas-Insulated Equipment


On the Possibility of Diagnostics of GCB and GIS by Gas Chromatography


On the Electrostatics of Probe Measurements of Surface Charge Densities


Measurement of Accumulated Charge on Dielectric Surfaces with an Electrostatic Probe


The Effect of Humidity on Space Charge Growth in Short Air Gaps

Laser Probing of Air Gaps Under AC Conditions

Chapter 5: Gases/Mixtures for GIS Transformers and Circuit Breakers

Predicting the Breakdown Strength of Mixtures from Basic Data


The Dielectric Strength of Dichlorotetrafluoroethane (1,2-C2Cl2F4) Determined in a Combined Swarm/Breakdown Study


The Influence of Gaseous Admixtures to SF6 on the Corona Stabilized Regime at AC and at Positive Impulse Voltage


Nonuniform Field Corona and Breakdown Characteristics of SF6/Freon Mixtures


Effect of a Trichlorotrifluoroethane Vapor Additive on Dielectric Strength of SF6 Gas

Measurement of the Figure of Merit M for Several Perfluorocarbon Gases

Breakdown Voltage Measurement of Some Vapor-Mist Dielectrics

Chapter 6: Gaseous Media for Discharge Chemistry and Etching/Coron

Gaseous Media for Plasma Chemistry and Etching


Practical Implications of Dry Plasma Processing


Important Considerations for Optimizing Production Rates in RF Discharge Chemistry


Negative DC Corona Discharge in SF6 for Highly Divergent Fields


Calculation of Corona Onset Voltage with Space Charge Effect

DC Corona Control in Coaxial Gas Insulating Systems

Chapter 7: Gas Engineering for Pulsed Power and Switching

Gas Engineering for Pulsed Power and Switching


Penning Ionization Ternary Gas Mixtures for Diffuse Discharge Opening Switches


Gas Mixtures for Spark Gap Closing Switches with Emphasis on Efficiency of Operation


The Influence of Transverse Magnetic Fields on Glow Discharges in He/SF6 Gas Mixtures


Analysis of the Cathode Fall of Glow Discharges in a He/SF6 Gas Mixture

Gas Engineering Studies for High Pressure Self-Sustained Diffuse Discharge Closing Switches

Diffuse Discharges in High-Pressure Mixtures of c-C4F8 and He

Chapter 8: Gas Breakdown Under Steep-Fronted Voltages

Statistical Breakdown Process in SF6 and Breakdown Voltage Calculations


Formative Time Lags in SF6-N2 Gas Mixtures for Different Field Distribution


Voltage-Time Characteristics of Impulse Breakdown in SF6 Gas


Spacer Flashover Time Lags in SF6 Under Fast-Front Impulse Voltages


Breakdown Volt-Time Characteristics in SF6 Mixtures for a Coaxial Cylinder Gap

Effect of Field Divergence on the Lightning Impulse Breakdown of Rod-Plane Gaps in N2/SF6 Mixtures

Free Particle Initiated Breakdown of SF6 Under Voltages of Different Time Dependence

Chapter 9: New Developments in Gas-Insulated Equipment/Gas Handling

Development of ±500 kV HVDC Gas-Insulated Switchgears


A Manufacturer's Experience in the Cyclic Use of SF6 Gas


Volt-Time Curves of Disconnector-Generated Fast Transients inside GIS


Insulation Characteristics of Separate Cooling Sheet Winding-Type Gas-Insulated Transformer


Recovery Strength of SF6-Insulated Gaps Stressed by Double Lighting Impulse Voltages

Conduction Currents in Gas-Insulated Switchgear for Low Level DC Stress

Effects of Electrode Surface Roughness on Dark Current and Switching Impulse Breakdown Voltage in Compressed SF6 Gas

Mixing Rates and Diffusion of Various Gases and Moisture into SF6

Chapter 10: Gas/Insulator Interface/Flashover

Surface Changes Induced by Low Kinetic Energy Products from Corona Discharge on Epoxy Resin in Air


Avalanches Near a Dielectric Spacer in Nitrogen Gas


Measurement of the Temporal Decay of Charges on Insulator Surfaces


Effect of Ribs on Surface Discharge in SF6 Gas


Application of ESCA in GIS Spacer Surface Analysis


Study of the Charge Build-Up on Dielectrics Submitted to Corona Discharge and Ageing Effects

Influence of 60 Hz AC Charging of Spacers on Subsequent Impulse Flashover in Compressed SF6

Surface Flashover of Polyester, Polypropylene, and Teflon Films in Low Pressure SF6 and N2 Media

Research on Conductor-Plane Long-Gap Characteristics by Surface Discharge Analogy Model

The Surface and Volume Effects of Interactions of Internal Partial Discharges with Solid Dielectrics

Chapter 11: Quality Control in Testing Gas-Insulated Apparatus

Fundamental Knowledge and the Testing of GIS


Flashover Damage Test Procedure for Insulating Materials in Compressed SF6


Strength of Typical GIS Configurations with Special Reference to Composite and Combined Stresses


Limits to Partial Discharge Detection


Broad Band Pulse Detection Studies of Corona and Breakdown in Air, N2, O2, CO2, SF and SF6-N2 Mixtures

Chapter 12: Reports of Discussion Groups

Group Discussion on New Diagnostic Techniques

Group Discussion on Gas-Insulated Transformers and DC GIS

Group Discussion on Gas Engineering for Modern Technologies: Input from Basic Research

List of Participants

Photographs of Participants

Author Index


No. of pages:
© Pergamon 1987
1st January 1987
eBook ISBN:

About the Editors

Loucas G. Christophorou

Don W. Bouldin

Ratings and Reviews