NDLI: Simulations of partial discharges of small microcracks parallel to the electrical field in polymeric materials

Content Provider	IEEE Xplore Digital Library
Author	Burgener, H.-P. Teich, T.H. Frohlich, K.
Copyright Year	2002
Description	Author affiliation: High Voltage Lab., Swiss Fed. Inst. of Technol., Zurich, Switzerland (Burgener, H.-P.; Teich, T.H.; Frohlich, K.)
Abstract	Gaseous voids in polymeric dielectric materials are likely locations for partial discharges (PD). Numerous parameters influence the development of the charge avalanche. To date, various experiments and simulations have been carried out to investigate the PD behaviour as a function of the geometry of disc-shaped or spherical voids. In contrast, this paper deals with the restricting effect of the walls of cylindrical voids parallel to the electrical field on the avalanche. Simulations of the inception voltage and the apparent charge in longish cylindrical voids of constant length show increased inception voltage and decreasing apparent PD charge when the diameter of the void is reduced. These simulation results could be supported by experiments. To assess this, the diameter of drilled holes in epoxy resin was increased stepwise from 50 to 300 /spl mu/m with a constant hole depth of 300 /spl mu/m. For each diameter partial discharges were measured optically and electrically. The knowledge of the critical (sufficient) size of a void for PD to take place under given field conditions helps to formulate the requirements for the manufacturing processes for improved dielectric materials.
Starting Page	146
Ending Page	150
File Size	347345
Page Count	5
File Format	PDF
ISBN	0780375025
DOI	10.1109/CEIDP.2002.1048757
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-20
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Partial discharges Polymers Dielectric materials Voltage Solid modeling Geometry Epoxy resins Dielectric measurements Electric variables measurement Manufacturing processes
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Partial Discharge Diagnostics of Micro Cavities in Epoxy Insulating Materials and their Modelling

Detection of partial discharge in solid and liquid insulation with an electric field sensor

Radiation spectra of partial discharge in dielectrics

Electric field investigation in high voltage power modules using finite element simulations and partial discharge measurements

Modeling of Electrical Tree Propagation in the Presence of Voids in Epoxy Resin

Time variation of partial discharge current waveforms with degradation of insulators

New method for evaluating high-field dielectric properties of polymeric insulating materials

A novel flexible approach for prediction and on line diagnostic of partial discharge [electrical insulation applications]

Partial Discharge Diagnosis of Generator Insulation Systems - Measurements, Simulations and Picture Recognition

Simulations of partial discharges of small microcracks parallel to the electrical field in polymeric materials

Similar Documents

Partial Discharge Diagnostics of Micro Cavities in Epoxy Insulating Materials and their Modelling

Detection of partial discharge in solid and liquid insulation with an electric field sensor

Radiation spectra of partial discharge in dielectrics

Electric field investigation in high voltage power modules using finite element simulations and partial discharge measurements

Modeling of Electrical Tree Propagation in the Presence of Voids in Epoxy Resin

Time variation of partial discharge current waveforms with degradation of insulators

New method for evaluating high-field dielectric properties of polymeric insulating materials

A novel flexible approach for prediction and on line diagnostic of partial discharge [electrical insulation applications]

Partial Discharge Diagnosis of Generator Insulation Systems - Measurements, Simulations and Picture Recognition

Simulations of partial discharges of small microcracks parallel to the electrical field in polymeric materials