Gaseous Dielectrics VIII

Front Matter....Pages i-xiv
Front Matter....Pages 1-1
Electron Impact Ionization and Dissociation of Molecules Relevant to Gaseous Dielectrics....Pages 3-13
Radicals from Electron Impact on Fluorocarbons....Pages 15-21
Electron Collision Cross Sections and Transport Parameters in CHF 3 ....Pages 23-29
Ion-Molecule Reactions and Ion Kinetics in DC Townsend Discharges in Dielectric Gases....Pages 31-37
Electron Drift Velocities and Electron Attachment Coefficients in Pure CHF 3 and its Mixtures with Argon....Pages 39-44
Cross Section Measurements for Various Reactions Occurring in CF 4 and CHF 3 Discharges....Pages 45-50
A Study of Ion-Molecule Reactions of Methane Ions in Parent Gas at High E/N....Pages 51-56
Ionization and Ion Kinetics in c-C 4 F 8 ....Pages 57-62
The Dependence of Electron Capture Rate Constants on Electronic Polarizability....Pages 63-68
New Approach to Analysis of the Data of Electron Swarm Experiment in Ionization Chamber....Pages 69-71
Electron Attachment to O 2 in Dense He and Ar Gases....Pages 73-78
Electron Mobility and Localization in High-Density Helium Gas in an Extended Temperature Range....Pages 79-84
Electron Mobility Maximum in High-Density Ar Gas....Pages 85-90
Low-Energy Electron Collision by Excited Atoms....Pages 91-96
Front Matter....Pages 97-102
A Study of Prebreakdown in SF 6 ....Pages 103-103
From Corona Stabilization to Spark Breakdown in Point-To-Plane SF 6 Gaps....Pages 105-111
Generation Mechanism of Partial Discharge in Different Kind of Pure Gases and Gas Mixtures with SF 6 ....Pages 113-123
Dielectric Characteristics of SF 6 -N 2 -Mixtures for Very Fast Transient Voltages....Pages 125-131
Theoretical and Experimental Analysis of a High Pressure Glow Discharge Controled by a Dielectric Barrier....Pages 133-139
Front Matter....Pages 141-146
Electrical and Physical Behaviour of a Point-To-Plane Barrier Discharge in Air Governed by the Water Vapour Content....Pages 103-103
Experimental and Theoretical Investigations on the Statistics of Time Lags to Corona Inception and Breakdown of SF 6 in Non-Uniform Electric Fields....Pages 147-153
Properties of the Rf-Discharge in Ar-Tetraethoxylsilane....Pages 155-160
Front Matter....Pages 161-166
Thermodynamic and Electrical Properties of SF 6 -N 2 Thermal Plasmas....Pages 167-167
Leader Step Time and Low Probability Impulse Breakdown Voltage Measured in SF 6 Gas Mixtures....Pages 169-179
The Study of SF 6 Mixtures with Buffer Gases....Pages 181-187
Breakdown Strength of SF 6 /CF 4 Mixtures in Highly Non-Uniform Fieldse....Pages 189-195
The Effect of Electrode Geometry on the Lightning Impulse Breakdown in SF 6 / N 2 Mixtures....Pages 197-203
Macroscopic Modeling of Inhomogeneous Field Breakdown in SF 6 Under Lightning Impulse Stress....Pages 205-211
A Comparative Evaluation of Cost / Benefit Analysis with Lightning Impulse Breakdown Strength of Binary and Ternary Gas Mixtures Containing SF 6 in Non-Uniform Field Gapsd....Pages 213-218
Simulation of Electrical Circuit of Plasma Opening Switch Using Pspice....Pages 219-224
Power Absorbed in a RF Discharge in Oxygen....Pages 225-230
Front Matter....Pages 231-236
Partial Discharge Transients: The Field Theoretical Approach....Pages 237-237
UHF Diagnostics and Monitoring for GIS....Pages 239-252
Dielectric Properties of Small Gas Gap in SF 6 /N 2 Mixtures....Pages 253-262
Discrimination of Streamer / Leader Type Partial Discharge in SF 6 Gas Based on Discharge Mechanism....Pages 263-267
The Influence of Accelerated Partial Discharges Tests on the Effects on Epoxy Composite Surface in SF 6 ....Pages 269-275
Influence of Void Geometry and Bulk Dielectric Polarization Upon PD Transients....Pages 277-282
Partial Discharge Inception and Breakdown Characteristics in Gas Mixtures with SF 6 ....Pages 283-288
Dependence of Partial Discharge and Breakdown Characteristics on Applied Power Frequency in SF 6 Gas....Pages 289-294
Front Matter....Pages 295-300
Partial Discharge Characteristics of Small Gas Gaps in SF 6 Gas....Pages 237-237
Characteristics of Partial Discharges on a Dielectric Surface in SF 6 -N 2 Mixtures....Pages 301-305
Analysis of the Degradation of Polyethylene in Air Using Electrical and Physical Data....Pages 307-312
Digital Analysis of PD Sources in Gas Insulated Switchgear Substation....Pages 313-318
Experimental Estimation of Schwaiger Factor Limit (η LIM ) in Atmospheric Air....Pages 319-324
Front Matter....Pages 325-330
SF 6 /N 2 Mixtures for HV Equipment and Practical Problems....Pages 331-331
Low SF 6 concentration SF 6 / N 2 Mixtures for GIL....Pages 333-343
Application Problems of SF 6 /N 2 Mixtures to Gas Insulated Bus....Pages 345-351
A Search for Possible “Universal-Application” Gas Mixtures....Pages 353-359
Some Aspects of Compressed Air and Nitrogen Insulation....Pages 361-367
Front Matter....Pages 369-375
Decomposition of SF 6 Under AC and DC Corona Discharges in High-Pressure SF 6 and SF 6 /N 2 (10–90%) Mixtures....Pages 377-377
Influence of a Solid Insulator on the Spark Decomposition of SF 6 and SF 6 +50%CF 4 Mixtures....Pages 379-386
Chemical Reactions and Kinetics of Mixtures of SF 6 and Fluorocarbon Dielectric Gases in Electrical Discharges....Pages 387-393
Dielectric Coatings and Particle Movement in GIS/GITL Systems....Pages 395-402
Breakdown Characteristics of a Short Airgap with Conducting Particle Under Composite Voltages....Pages 403-409
SF 6 Handling and Maintenance Processes Offered by Quadrupole Mass Spectrometry....Pages 411-416
Front Matter....Pages 417-422
The United States Environmental Protection Agency’s SF 6 Emissions Reduction Partnership for Electric Power Systems: An Opportunity for Industry....Pages 423-423
SF 6 Recycling in Electric Power Equipment....Pages 425-430
Study of the Decomposition of SF 6 in the Lower Atmosphere: The Experimental Approach....Pages 431-442
Extremely Low Frequency Electric and Magnetic Field Measurement Methods....Pages 443-450
Front Matter....Pages 451-457
A Systematic Search for Insulation Gases and their Environmental Evaluation....Pages 423-423
SF 6 ReUse Concept and SF 6 New Applications....Pages 459-464
Front Matter....Pages 465-470
The Surface Flashover Characteristics of Spacer for GIS in SF6 Gas and Mixtures....Pages 471-471
Generation and Investigation of Planar Surface Discharges....Pages 473-479
Electrical Surface Discharges on Wet Polymer Surfaces....Pages 481-487
Termination of Creeping Discharges on a Covered Conductor....Pages 489-495
Static Electrification Phenomena on Dielectric Materials of SF6 Gas-Insulated Transformer....Pages 497-503
Prebreakdown Phenomena in Dry Air Along PTFE Spacers....Pages 505-510
Front Matter....Pages 511-516
Development of the SF 6 /N 2 Gas Mixture Insulated Transformer in China....Pages 517-517
Possibility Studies on Application of SF 6 /N 2 Gas Mixtures to a Core-Type Gas Insulated Transformer....Pages 519-527
Power Frequency and SIL Withstand Performance of a GIC with 5 and 10 Percent SF 6 /N 2 Mixtures....Pages 529-539
Insulation Characteristics of GIS for Non-Standard Lightning Surge Waveforms....Pages 541-546
Front Matter....Pages 547-553
A Utility Perspective on SF 6 Gas Management Issues....Pages 555-555
The Comparison of Arc-Extinguishing Capability of Sulfur Hexafluoride (SF 6 ) with Alternative Gases in High-Voltage Circuit-Breakers....Pages 557-564
Insulation Characteristics of DC500kV GIS....Pages 565-571
Improvement of Withstand Voltage at Particle Contamination in DC-GIS Due to Dielectric Coating on Conductor....Pages 573-579
Front Matter....Pages 581-586
Discussion Group A: Other Industrial Applications of Gaseous Dielectrics and Databases....Pages 587-587
Discussion Group B: SF 6 Substitutes....Pages 589-600
....Pages 601-612