Zobrazeno 1 - 10
of 64
pro vyhledávání: '"Pavel Prosr"'
Autor:
Jozef Kudelcik, Stefan Hardon, Peter Hockicko, Maria Kudelcikova, Jaroslav Hornak, Pavel Prosr, Pavel Trnka
Publikováno v:
IEEE Access, Vol 9, Pp 49547-49556 (2021)
This study presents the influence of various types of nanoparticle (NP) fillers incorporated into a polyurethane (PU) (VUKOL 022) matrix and its subsequent changes in complex permittivity. Two types of surface modification of SiO2 fillers were invest
Externí odkaz:
https://doaj.org/article/a00704be1a604422894aab28e131c74c
Publikováno v:
IEEE Access, Vol 8, Pp 61989-61998 (2020)
This article adds more information to the problem of natural ester use as an electroinsulating fluid in cellulose paper-oil systems, e.g., for use in power transformers. An accelerated thermal aging (120, 140 and 160 °C) of samples consisting of cel
Externí odkaz:
https://doaj.org/article/b5161edfdbec45aeb2d215d84fee69e3
Publikováno v:
Applied Sciences, Vol 10, Iss 4, p 1309 (2020)
The effect of catalysts in the form of a transformer copper winding with Kraft paper insulation on the lifetime of transformer oil was studied via ultraviolet-visible (UV-Vis) spectroscopy and Fourier transform infrared (FT-IR) spectroscopy. The test
Externí odkaz:
https://doaj.org/article/a009305fa2154ce88642b248b6e404d4
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 7, Iss 1 - 2, Pp 134-136 (2008)
This article deals with a description of methods of an experimental analysis concerning the actual condition of windings and magnetic circuit of the autotransformer, which is required in power transmission companies all over the world.
Externí odkaz:
https://doaj.org/article/00bd0e1489f84ac6b97fd45744454808
Autor:
Jaroslav Hornak, Jakub Černohous, Pavel Prosr, Pavel Rous, Pavel Trnka, Anton Baran, Štefan Hardoň
Publikováno v:
Polymers; Volume 15; Issue 6; Pages: 1532
Recently, polyurethanes (PURs) have become a very promising group of materials with considerable utilization and innovation potential. This work presents a comprehensive analysis of the changes in material properties important for PUR applications in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c59180975f4509ba451a0c9b93c1977
Publikováno v:
AIP Conference Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65c6634476fb1912c6019fb007746cce
https://doi.org/10.1063/5.0135805
https://doi.org/10.1063/5.0135805
Partial discharges suppression in slot part of rotating machines is an issue to be solved using the different attempts. Since decades the conductive layers of main wall slot insulation are used. Besides their resistivity / conductivity which allows p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f2a2b45c800fdfad74532d20955b4ef
http://hdl.handle.net/11025/50542
http://hdl.handle.net/11025/50542
Volume resistivity is one of basic material properties determined for electrical insulating materials. In many cases, the measurement process can affect the accuracy of the measured data. Therefore, this paper analyzes the measurement process while m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7e66d0e4186d6f4a6cb2c333d754fb7
http://hdl.handle.net/11025/50541
http://hdl.handle.net/11025/50541
Publikováno v:
2021 IEEE Electrical Insulation Conference (EIC).
Composites with the epoxy matrix are still the most common composites used in high voltage electrical insulation systems. Polyimides are materials with excellent heat resistance and high electrical strength for application, where high overall enduran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84ef440a2e09b727572727ea50328ffc
https://doi.org/10.1109/eic49891.2021.9612336
https://doi.org/10.1109/eic49891.2021.9612336
Publikováno v:
APPLIED PHYSICS OF CONDENSED MATTER (APCOM 2021).
Potting compounds are an integral part of a large number of electrical devices, in which play the role of mainly mechanical or photosensitive protection. So-called cold-curing resins are one of the subgroups of potting mixtures. This article focuses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27a068d503cbb645df7dc8d320c18044
https://doi.org/10.1063/5.0067364
https://doi.org/10.1063/5.0067364