Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Igor Gutman"'
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9783030316792
Service experience of composite insulators worldwide is generally considered to be similar to that of glass cap and pin insulators. However, composite insulators can be of different quality and this aspect is not fully covered by existing IEC standar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::292ef4f7ef30cafe2a99b163c84224dc
https://doi.org/10.1007/978-3-030-31680-8_15
https://doi.org/10.1007/978-3-030-31680-8_15
Publikováno v:
IEEE Electrical Insulation Magazine. 31:43-51
Historically, line composite insulators have been used with success in relatively clean environments mainly due to the simplicity of handling and better pricing than ceramic insulators. Voltage upgrading and compact design of overhead lines are new t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf47d76de1750421205bec0bb88665d4
https://doi.org/10.1109/mei.2015.7303261
https://doi.org/10.1109/mei.2015.7303261
Autor:
Andreas Dernfalk, Hiroya Homma, Kohei Yaji, Teruo Aso, Igor Gutman, Masato Watanabe, Gaku Sakata
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 21:2568-2575
In December 2005, Japan experienced a major outage in Niigata Kaetsu area due to a large amount of wet snow mixed with sea-salt accreted on several transmission line insulators. To clarify the causes of the snow-induced outage and increase reliabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0f48d99b0fdcda3b1a965dced313ea9
https://doi.org/10.1109/tdei.2014.004563
https://doi.org/10.1109/tdei.2014.004563
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 21:2496-2502
The need for testing at HVDC and UHVDC levels has increased dramatically over the last few years. Typically test objects include valves, cables, line insulators, cable accessories, optical instrument transformers and station post insulators. Some of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8592f35d49ee242bebd610304c4a5f37
https://doi.org/10.1109/tdei.2014.004605
https://doi.org/10.1109/tdei.2014.004605
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 21:2525-2530
The Rapid Flashover pollution test method (RFO) exposes energized polluted insulators to fog and uses step changes of voltage to identify a minimum flashover voltage. The RFO method reduces test time by a factor of three or more compared to up-and-do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5a47408efe0979b51bafa4c8f4d03f1
https://doi.org/10.1109/tdei.2014.004593
https://doi.org/10.1109/tdei.2014.004593
Publikováno v:
IEEE Transactions on Communications. 61:4284-4293
A communication system with non-linear power amplifier (PA) is considered. We introduce three major performance criteria of the system: (i) power efficiency of the PA, (ii) spectral purity of the transmitted signal expressed by adjacent channel inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faa92a7166c96d46be85c41f29d90336
https://doi.org/10.1109/tcomm.2013.090513.120983
https://doi.org/10.1109/tcomm.2013.090513.120983
Publikováno v:
International Journal of Wireless Information Networks. 20:204-214
A communication system with nonlinear Power Amplifier (PA) is considered. The PA nonlinearity forces the designer of communication system to choose proper Back-Off, which influences three major parameters of the communication system: (i) power effici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58fefa0b082f66819b284a7e9d1a39b8
https://doi.org/10.1007/s10776-013-0205-9
https://doi.org/10.1007/s10776-013-0205-9
Autor:
Dov Wulich, Igor Gutman
Publikováno v:
IEEE Transactions on Wireless Communications. 11:3660-3667
This paper investigates the statistical distribution of instantaneous power (IP) in pulse-shaped single-carrier (SC) modulation with independent I/Q components. Such knowledge is required due to the nonlinearities that may appear in the whole communi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::266249d3dbca3c11f38b925741748dfc
https://doi.org/10.1109/twc.2012.081312.112101
https://doi.org/10.1109/twc.2012.081312.112101
Laboratory Tests and Web Based Surveillance to Determine the Ice- and Snow Performance of Insulators
Publikováno v:
IEEE Transactions on Dielectrics and Electrical Insulation. 14:1373-1380
To be able to determine, verify and monitor the ice-and snow performance of different insulation solutions, laboratory test methods and an on-site, on-line web based surveillance system are needed. The method for determining the ice performance in la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15999e77d1efeb91ba4be9f2a91c0192
https://doi.org/10.1109/tdei.2007.4401219
https://doi.org/10.1109/tdei.2007.4401219
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 127:513-518
At present line and apparatus composite insulators are widely accepted for use on AC overhead lines and in high voltage substations. The present paper concentrates on measurements of different pollution parameters of naturally exposed apparatus compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16308004e10c5dda2fb47c402f55e9bd
https://doi.org/10.1541/ieejfms.127.513
https://doi.org/10.1541/ieejfms.127.513