Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Jaksts, A."'
Publikováno v:
IEEE Electrical Insulation Magazine. 17:10-15
Mica/epoxy and oil/cellulose have dominated insulation systems of rotating machines and power transformers for over 100 years. In recent years, however, XLPE cables have been introduced to generators and transformers as HV windings. This has resulted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02206315c8fd9f57931c99b8aae2066b
https://doi.org/10.1109/57.925298
https://doi.org/10.1109/57.925298
Publikováno v:
IEEE Transactions on Electrical Insulation. 27:647-660
Developments in Kerr electro-optic measurement technology at the laboratory have made possible high resolution electric field measurements in nonpolar liquids. The electric field distribution in transformer oil has been studied at service stress leve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f044faa6cca470ef8403749c6770915e
https://doi.org/10.1109/14.142730
https://doi.org/10.1109/14.142730
Autor:
B. Mazurek, A. Jaksts
Publikováno v:
Cryogenics. 30:68-71
Observations of particle initiated d.c. breakdown of liquid nitrogen between plane parallel electrodes separated by a porcelain spacer, are reported. The metallic particle is situated close to the spacer surface and is not free to move during voltage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fffc815e3143352c438557a97a6388c
https://doi.org/10.1016/0011-2275(90)90118-v
https://doi.org/10.1016/0011-2275(90)90118-v
Autor:
Tommaso Auletta, Francis O'Sullivan, Rongsheng Liu, A. Jaksts, Il-Han Park, Se-Hee Lee, Leif A. A. Pettersson, Uno Gafvert, Markus Zahn, Olof Hjortstam
Publikováno v:
2006 IEEE Conference on Electrical Insulation and Dielectric Phenomena.
Unipolar and bipolar space charge injection and propagation is analyzed under simplified linear and Fowler-Nordheim charge injection conditions for parallel plane or needle-sphere electrodes stressed by a step voltage. To verify our finite element nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21de21c42986a5f52b928e2d37c03c89
https://doi.org/10.1109/ceidp.2006.312078
https://doi.org/10.1109/ceidp.2006.312078
Autor:
A. Jaksts, G. Blanchet
Publikováno v:
Conference Record of the 2006 IEEE International Symposium on Electrical Insulation.
As liquid breakdown modeling is still in its infancy, dielectric breakdown tests remain one source of input regarding the design of an insulation system for power apparatus. The relevance of small scale tests has long been known to be limited. It is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd496c2f82bb8ef1e65969c8580a455
https://doi.org/10.1109/elinsl.2006.1665263
https://doi.org/10.1109/elinsl.2006.1665263
Autor:
A. Jaksts, B. Nettelblad
Publikováno v:
1991 Annual Report. Conference on Electrical Insulation and Dielectric Phenomena.
A survey of the dielectric behaviour of some insulating liquids has been performed. The results show that these liquids display a conduction mechanism at moder elevated temperatures. At low temperatures, the Iiquids display a loss maximum, that is sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c2c5fb8f8184006d46cc6419b5785b5
https://doi.org/10.1109/ceidp.1991.763828
https://doi.org/10.1109/ceidp.1991.763828
Autor:
Rongsheng Liu, A. Jaksts
Publikováno v:
IEEE International Conference on Dielectric Liquids, 2005. ICDL 2005..
The work contributes to the understanding of breakdown processes in transformer oil/cellulose insulation under a LI (lightning impulse) voltage. The breakdown mechanism associated with streamer propagation, space charge distribution, material propert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9f36af3bed1adc6bb853810ae8cfe4
https://doi.org/10.1109/icdl.2005.1490030
https://doi.org/10.1109/icdl.2005.1490030
Publikováno v:
PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376).
Transformer technology is a mature technology. A characteristic of such technologies is that most advances tend to be incremental. Improvements also are often related to the demands of the 20th century manufacturing techniques rather than to the fund
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42c516c8b365c8f3883b72e30799e6aa
https://doi.org/10.1109/ptc.1999.826483
https://doi.org/10.1109/ptc.1999.826483
Publikováno v:
[1991] Proceedings of the 3rd International Conference on Properties and Applications of Dielectric Materials.
The authors report angularly resolved measurements of the electric field in transformer oil around two overlapping pressboard barriers, a geometry relevant to HVDC transformer design. Measurements have been performed at room temperature and at 80 deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd14961c78581e30cfcf8d9ea84cbd72
https://doi.org/10.1109/icpadm.1991.172224
https://doi.org/10.1109/icpadm.1991.172224
Autor:
A. Jaksts
Publikováno v:
IEEE International Symposium on Electrical Insulation.
Regarding the role played by liquid/solid interfaces on the breakdown strength of a stressed gap, previous workers have suggested that liquid motion in an oil gap is altered by the presence of a spacer. It has been hypothesized that this change reduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b1eeaff499f316d9ee5830300c4dffd
https://doi.org/10.1109/elinsl.1990.109704
https://doi.org/10.1109/elinsl.1990.109704