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ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132)

ICSD'98. Proceedings of the 1998 IEEE 6th International Conference on Conduction and Breakdown in Solid Dielectrics (Cat. No.98CH36132)

Optical pre-breakdown warnings in insulating polymers

Electric charge 3-dimensional profile measurement in dielectrics using acoustic microscope probe head

Moisture and space charge in oil-impregnated pressboard under HVDC

Some consideration of voltage-induced interfacial space charge in several laminated dielectrics

Evaluation of space charge properties in polymers by using a scanning electron microscope

Effects of space charge and dipoles on dielectric relaxation of polyethylene and its ageing in humid environment

Space charge behaviour of highly polar polyolefins

Space charge distribution in new functional organic layer

Transient phenomena of space charge distributions in polypropylene laminated paper

Discrete states in anthracene with and without impurities

Observation of space charge distribution up to electric breakdown in acetophenone-coated polyethylene film

Interface charge in polymer laminates

Calibration of accumulated space charge in power cable using PEA measurement

Assessment of oil impregnated paper insulated transformers using recovery voltage measurements

Charge injection instability

Mechanisms causing nonlinear dielectric response of water treed XLPE cables

Diagnosis of medium voltage XLPE cables by high voltage dielectric spectroscopy

Investigation of the 'non-linear' dielectric response of water tree-aged XLPE cables in the time and frequency domain

Study and modeling of water treeing in solid insulation of power cables

Using the recovery voltage method to evaluate aging in oil-paper insulation

Return voltage measurements on paper insulation of windings and cables

Space charge behaviour in the insulation layer of a metal-base printed wiring board

The effect of semiconductive screens and XLPE insulation combinations on electrical tree inception

High energy density capacitor development at ABB Power T&D

Physical modeling of partial discharge patterns

Investigation of partial discharge pulse shapes occurring at interfaces in model joints

Partial discharge characteristics and tree propagation in artificially-simulated tree channel

A study on the influence of partial discharges on the performance of solid dielectrics

Experimental application of digital PD measurements to the diagnostics of railway system drives insulating systems

Power spectral density estimation of randomly sampled partial discharge signals

A general stochastic approach to partial discharge processes

Detection and localization of partial discharge in high voltage power cable joints

Partial discharge phenomena simulation using general-purpose analysis programs

Phase-resolved study on partial discharge for degradation diagnosis in polymeric insulating materials using model electrode system

PD patterns and PD current shapes of LDPE specimen with a void

Analytical approach of PD activity in low voltage motors fed by inverters [adjustable speed drives]

Identification of partial discharges sources using a combination of linear prediction and neural networks

Nuclear magnetic resonance imaging of morphological changes during electrical treeing in polyethylene due to partial discharges

A comparative study of partial discharge pattern evolution in polymers at room and cryogenic temperatures

Recognition of PD faults using chaos mathematics

Advanced partial discharge analysis techniques on generators and motors

On turbogenerator H.V. stator winding condition assessment by the analysis of PDHD detected on phases and insulated coils after untimely failure

The effects of surface ion concentration on interfacial polarization in EPR/clay composites

Thermally stimulated depolarization currents of silicone rubbers immersed in water

Electrical properties of EPR cable models aged under thermal and electrothermal stresses

Proposal of reconstructing method of partial TSC curves to some full curves for accurate evaluation

Numerical simulation of electric currents through insulating materials

DC electrical and mechanical characterisation of polypropylene film

Electric conductivity of the composite insulator mica-epoxy-novalac

The electrical properties of silicone gel due to curing condition

Electronic levels insulating polymers estimated by XPS and UPS

Effects of metal impurities in insulation of distribution cables

Dielectric properties of SiCF film deposited by PECVD with low dielectric constants

Anomalous dielectric dispersion in tantalum oxide films prepared by RF sputtering

Electrode effects and electrical conduction in polyimide Kapton HN films

The properties of electrical conduction and photoconduction in polyphenylene sulfide by uniaxial elongation

Electrical and dielectric properties of carbon black-resin composite films made by the electrostatic coating method

Factors influencing conduction currents in Teflon

Application of a negative sweep voltage to control gate of fresh flash memory devices to facilitate threshold voltage test measurement

Improvement of silicon dioxide integrity against hole-related breakdown with the incorporation of foreign atoms: molecular orbital examination

Electroluminescence emission imaging in insulating polymers under uniform field configuration

Direct optical observation of polyethylene microstructures under field and temperature conditions, before any degradation

Surface behaviour of epoxy castings during the early ageing period

Light emission and electrical tree initiation in highly stressed XLPE and the effect of DC prestressing

Thermoelectric ageing of cable grade XLPE in dry conditions

On the thermooxidative degradation of polyethyleneterephtalate

A practical experimental method with high accuracy for research of thermal aging properties in winding insulating systems

Dependence of electroluminescence intensity and spectral distribution on ageing time in polyethylene naphthalate

Modelling partial discharges in electrical trees

Discharges, space charge, and the shape of electrical trees

Effect of liquid impregnation on electrical tree initiation in XLPE

Simulation of partial discharges and electrical tree growth in solid insulation under ac voltage

The 3-D fractal analysis of electrical trees using a serial sectioning method and a CT method

Experimental investigation of treeing growth in polyethylene insulation

The effect of inclusions in XLPE insulations on electrical trees generated by ac and grounded dc voltage

Electrical tree growth and space charge behaviour of epoxy resin blends

Study by electron microscopy investigations (TEM, SEM, ED, HVEM) of treeing (from pre-breakdown to breakdown) induced by accelerated methods

Investigation in to growth of electrical trees in XLPE cables under transient voltages

Determination of statistical distribution of water tree lengths: Monte Carlo simulation

Accelerated aging of XLPE and EPR cable insulations in wet conditions and its influence on electrical characteristics

The influence of ageing process on the shape and the propagation kinetics of the water trees in needle-plane polyethylene samples

Application of polyethylene sheath and swelling powder against water treeing

Electrical properties of thermoplastic polyimide

Certain high charging polymeric materials in transformer oil

Structure-morphology modification of cable insulation polymers

Insulating materials for super-conductors, their characteristics at cryogenic temperature

Morphology of polyethylene for power cable insulation: effects of antioxidant and crosslinking

Dielectric breakdown in F-doped SiO/sub 2/ films formed by plasma-enhanced chemical vapor deposition

On polyaniline-polyvinylchloride blends

Electric fields in ferroelectric polymer metal structures; modeling using a finite element boundary element method

The piezoelectric characteristics of PZ-PT-PMS ceramics with addition of CeO/sub 2/ for large displacement application

Study of pressure and temperature dependence of electrical properties in new intrinsic semiconducting polyacene quinone radical polymer

Study of photovoltaic properties of conducting polymers

Electric behaviour of ZnO varistor studied from TSC measurement

High voltage insulation for power cables utilizing high temperature superconductivity

Outdoor ageing of silicone rubber based polymeric materials

Surface flashovers on metal-oxide varistor blocks

Modelling of the dry band problem on outdoor insulators: a new perspective

Performance of HV insulators under environmental pollution in arid area

Evaluation of cumulative charge data of polymer insulator aging tests

Evaluation of contamination resistance of GFR epoxy rods for indoor application by means of a salt fog test

Evaluation of leakage current pulse data of polymer insulator aging tests

Evaluation of the hydrophobicity-dynamics of artificially polluted silicone-rubber model insulators

A mechanical origin for electrical ageing and breakdown in polymeric insulation

Endurance characteristics of XLPE compounds under DC voltage

A discussion of some concepts in thermal aging test-thermal aging and thermal breakdown

Strength enhancement in composite insulation-a phenomenological study

Energy consumption at electrical disintegration of brittle solids

Wavelet analysis of scintillation discharge current on DC tracking resistance of gamma-ray irradiated polyethylene and modified polycarbonate

Electric field control by polymer foam

Optimum test voltages for breakdown experiments

An investigation on electrical properties of meerschaum

Relationship between the paper covering thickness of the electrode and the development of the surface flashover at impulse voltages

Effect of small metal particles on ageing of epoxy insulation

Surface discharges along polymer foam

A new testing method of an enameled wire with a developed nanosecond pulse generator

Breakdown and space charge of LDPE films prepared using metallocene catalyst

Dielectric properties of new-type polyethylene polymerized using a single-site catalyst

Influence of metal inclusions on AC breakdown strength in EPDM

Solid insulation covering of conductors improves air insulation systems

Epoxy bushing used in medium voltage switchgear

Breakdown behaviour of polyethylene at dc voltage stress

On the statistical testing of solid dielectrics

On the role of the interface with the substrate in the destructive dielectric breakdown of very thin insulating films grown on silicon

Stress grading materials: a discussion on lumped elements circuits validity

A generalized approach for the study of the non linear behaviour of stator winding insulation

Improvement in the electrical performance of electrical insulation by non-linear fillers

Electrical applications of titanium-based FGMs manufactured by progressive lamination

Transient, finite element-boundary element methods for modeling high field effects in nonhomogeneous solid dielectrics

Electrical properties of field grading materials with silicon carbide and carbon black

Effect of thermal and mechanical stresses on the electrical properties of stress grading materials

An automatic measurement system for 2-dimensional birefringence vector distribution

Highly sensitive humidity sensor for dielectric measurement (water absorption) in glass-fiber resins

The influence of high-energy electron radiation on the distribution of fluorescence lifetimes in polyethersulphone

In search of a new method to measure the resistivity of insulating solids

Acoustic detection of partial discharges using non-intrusive optical fibre sensors [current transformers]

Smart and active transducers for the detection of acoustic emission [ferroelectric ceramic/polymer composites]

The influence of the semicon-insulation interface on the thermally stimulated current spectra of XLPE cable samples

TSC of polyaniline thin film

TSC in PET containing ferrocene units

Correlated interaction and dielectric relaxation in solids: a discriminating experimental approach by thermally stimulated depolarization current

Proceedings of 1995 IEEE 5th International Conference on Conduction and Breakdown in Solid Dielectrics

[1992] Proceedings of the 4th International Conference on Conduction and Breakdown in Solid Dielectrics

Proceedings of the 3rd International Conference on Conduction and Breakdown in Solid Dielectrics

Discharges, space charge, and the shape of electrical trees

Content Provider	IEEE Xplore Digital Library
Author	Bromley, K.S. Dissado, L.A. Fothergill, J.C.
Copyright Year	1998
Description	Author affiliation: Dept. of Eng., Leicester Univ., UK (Bromley, K.S.)
Abstract	The movement of residual positive charges along the walls of tree tubules and into the surrounding polymer is a critical determining factor in the shape (bush or branch) of electrical trees. Positive charge that has a higher mobility along tubule walls promotes single discharges propagating to the tree tip. Lower mobility positive wall charge tends to more, but perhaps smaller, discharges. The former may favour branch tree growth, the latter bush trees. Spread out positive wall charge may occur when there are a number of discharges per half cycle. The resulting damage may favour bifurcation (transverse extension).
Starting Page	295
Ending Page	300
File Size	612388
Page Count	6
File Format	PDF
ISBN	0780342372
DOI	10.1109/ICSD.1998.709284
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-06-22
Publisher Place	Sweden
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Space charge Shape Trees - insulation Polymers Breakdown voltage Electrodes Ionization Fault location Tree data structures Fluctuations
Content Type	Text
Resource Type	Article

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