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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F12%3A43925002%21RIV15-MSM-23220___
rdf:type
n18:Vysledek skos:Concept
dcterms:description
There is difficult to imagine modern manufacturing of electrical devices without components containing (mainly for technological reasons) organic substances. This fact is mainly concerned to composite materials, in which the bond component is made of organic substance. Most of the electro-insulating materials used in common applications are composite materials. The possibility of the determination of dielectric properties of these systems is a problem of theoretical as well as practical importance. The paper is focused on thermal aging and accompanied dielectric spectroscopy diagnostics of two mainly used materials, which are utilized as a part of insulation system of electrical devices. The first tested specimen was mica composite material based on glass fibre and epoxy resin and the second one was two component composite based on epoxy resin as well. The specimens were tested under laboratory conditions. The materials were thermally aged and the changes of its physical and chemical properties were measured and evaluated. For accelerating the aging process different temperature values (170 - 200°C) were chosen. The aging time was determined for each temperature value. Specimens of tested material were performed and cured as flat plate 100x100 mm. The measuring of these specimens was carrying out in frequency domain from 200 Hz to 2MHz at special electrode test setup. For comparing the aging process of the investigated material the trends of measured parameters were studied and described in dependence on exposure time, temperature and applied frequency during measurement. There is difficult to imagine modern manufacturing of electrical devices without components containing (mainly for technological reasons) organic substances. This fact is mainly concerned to composite materials, in which the bond component is made of organic substance. Most of the electro-insulating materials used in common applications are composite materials. The possibility of the determination of dielectric properties of these systems is a problem of theoretical as well as practical importance. The paper is focused on thermal aging and accompanied dielectric spectroscopy diagnostics of two mainly used materials, which are utilized as a part of insulation system of electrical devices. The first tested specimen was mica composite material based on glass fibre and epoxy resin and the second one was two component composite based on epoxy resin as well. The specimens were tested under laboratory conditions. The materials were thermally aged and the changes of its physical and chemical properties were measured and evaluated. For accelerating the aging process different temperature values (170 - 200°C) were chosen. The aging time was determined for each temperature value. Specimens of tested material were performed and cured as flat plate 100x100 mm. The measuring of these specimens was carrying out in frequency domain from 200 Hz to 2MHz at special electrode test setup. For comparing the aging process of the investigated material the trends of measured parameters were studied and described in dependence on exposure time, temperature and applied frequency during measurement.
dcterms:title
Dielectric Spectroscopy of Thermally Aged Insulation Dielectric Spectroscopy of Thermally Aged Insulation
skos:prefLabel
Dielectric Spectroscopy of Thermally Aged Insulation Dielectric Spectroscopy of Thermally Aged Insulation
skos:notation
RIV/49777513:23220/12:43925002!RIV15-MSM-23220___
n3:aktivita
n11:S n11:P
n3:aktivity
P(ED2.1.00/03.0094), S
n3:dodaniDat
n12:2015
n3:domaciTvurceVysledku
n14:2306409 n14:8645833 n14:4023404 n14:9625488
n3:druhVysledku
n16:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
131176
n3:idVysledku
RIV/49777513:23220/12:43925002
n3:jazykVysledku
n21:eng
n3:klicovaSlova
frequency spectrum; loss factor; relative permittivity; thermal aging; dielectric spectroscopy
n3:klicoveSlovo
n4:thermal%20aging n4:loss%20factor n4:frequency%20spectrum n4:dielectric%20spectroscopy n4:relative%20permittivity
n3:kontrolniKodProRIV
[906D101A6C42]
n3:mistoKonaniAkce
Montréal, Québec, CANADA
n3:mistoVydani
Piscataway
n3:nazevZdroje
IEEE Conference on electrical insulation and dielectric phenomena
n3:obor
n22:JA
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n7:ED2.1.00%2F03.0094
n3:rokUplatneniVysledku
n12:2012
n3:tvurceVysledku
Ulrych, Jiří Pihera, Josef Polanský, Radek Prosr, Pavel
n3:typAkce
n15:WRD
n3:wos
000316899800206
n3:zahajeniAkce
2012-10-14+02:00
s:issn
0084-9162
s:numberOfPages
4
n19:doi
10.1109/CEIDP.2012.6378917
n8:hasPublisher
IEEE
n17:isbn
978-1-4673-1252-3
n10:organizacniJednotka
23220