Physics of the dielectric failure mechanism of new materials engineered for liquid and liquid/solid insulation systems

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Project abstract

The PhD project is aimed to investigate the fundamental physical processes of streamer initiation and propagation, related to the dielectric failure of liquid and liquid/solid insulating systems, based on non-conventional materials (e.g. oil with nanoparticles, biodegradable oils, engineered cellulose and polymers, etc). The project aims to gather basic physical experimental data on the streamer inception propagation in non-conventional insulating materials. It also includes the identification, analysis and characterization of the main physical and chemical material properties that influence the process of insulation failure. Furthermore, it includes the development of macroscopic simulation models to improve the interpretation of experimental results and to predict the insulation performance of the new materials under the conditions typical in power components.

Summary of work

2013. Design of the testing chamber and equipment for electrical characterization of materials.

2014. Construction, testing and preliminary experiments in the test chamber.

2015. Electrical characterization of the first cellulose and polymer films.

2016. Automatic experiment setup finished for nonstandard prebreakdown tests at solid/liquid interfaces. Chamber-reactor for experimentation of streamers propagating in mineral oil and along solid interfaces. Experiments in progress for the configurations: Polymers/Transformer oil (analysis extension); and Pressboard impregnated/Transformer Oil (analysis extension).

2016. Measurement campaign-mobility in Greifswald Germany.

Event log

2014 SweGRIDS meeting/conference

2014 Poster presentation at the 18th International conference on dielectric liquids ICDL.

2015 Two poster presentations at the international conference on electrical insulation and dielectric phenomena CEIDP

2016 Mobility for a measurement campaign at INP Greifswald Germany

2017 Second Best Poster Award at the KTH Energy Platform

2017 Poster presentation at ICDL (International Conference On Dielectric Liquids) in Manchester UK

2017 PhD defense on September

Project reference-group

Henrik Hillborg,  ABB
Claire Pitois,  ABB
Lars Wågberg,  KTH
Ulf Gedde,  KTH
Torbjörn Brattberg,  ABB Figeholm
Lars Schmidt,  ABB Figeholm
Tord Bengtsson,  ABB Corporate Research

Publications by this researcher

See alternatively the researcher's full DiVA list of publications, with options for sorting.
Publications in journals and conferences usually will not show until a while after they are published.

Electrical Conduction Currents Prior to Negative Streamer Inception in Mineral-Oil/Solid Interfaces
David Ariza,   Abderrahmane Beroual,   Ralf Methling,   Sergey Gortschakow,   Harold Rene Chamorro Vera.
2021,   IEEE transactions on dielectrics and electrical insulation, vol. 28

First-Mode of Negative Streamers: Inception at Liquid/Solid Interfaces
David Ariza,   Abderrahmane Beroual,   Ralf Methling,   Sergey Gortschakow,   Harold Rene Chamorro Vera.
2021,   High Voltage

Positive streamers : inception and propagation along mineral-oil/solid interfaces
David Ariza,   Rebecca Hollertz,   Ralf Methling,   Sergey Gortschakow.
2020,   Journal of Physics Communications, vol. 4(2)

On the inception and propagation of streamers along mineral-oil/solid interfaces
David Ariza.
2017,   Thesis (PhD), KTH Royal Institute of Technology,

First Mode Negative Streamers along Mineral Oil-solid Interfaces
David Ariza,   Marley Becerra,   Rebecca Hollertz,   Lars Wågberg,   Claire Pitois.
2017,   IEEE transactions on dielectrics and electrical insulation, vol. 24(4)

Influence of Paper Properties on Streamers Creeping in Mineral Oil
David Ariza,   Marley Becerra,   Ralf Methling,   Sergey Gortchakow,   Rebecca Hollertz,   Lars Wågberg.
2017,   19th International Conference On Dielectric Liquids ICDL 2017

Dielectric Response of Kraft Paper from Fibres Modified by Silica Nanoparticles
Rebecca Hollertz,   Claire Pitois,   David Ariza,   Lars Wågberg.
2015,   IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), OCT 18-21, 2015, Ann Arbor, MI

Propagation of negative streamers along mineral oil-solid interfaces
David Ariza,   Marley Becerra,   Rebecca Hollertz,   Claire Pitois.
2015,   Conference on Electrical insulation and Dielectric phenomena, CEIDP 2015,18-21 Oct. 2015, Ann Arbor, USA

On the initiation of negative streamers at mineral oil-solid interfaces
David Ariza,   Marley Becerra,   Rebecca Hollertz,   Claire Pitois.
2015,   IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), OCT 18-21, 2015, Ann Arbor, MI

Measurements of the charge of streamers propagating along transformer oil-solid interfaces
David Ariza,   Marley Becerra,   R. Hollertz,   Claire Pitois.
2014,   2014 IEEE 18th International Conference on Dielectric Liquids, ICDL 2014, 29 June 2014 through 3 July 2014, Bled

Publication list last updated from DiVA on 2024-08-22 22:58.

Page started: 2012-09-01
Last generated: 2024-08-22