Artykuły

Artykuły Znaleziono 348 rekordów  początekpoprzedni169 - 178następnykoniec  skocz do rekordu: Szukanie trwało 0.01 sekund. 
169. Concentrated Discharges and Dry Bands on Polluted Outdoor Insulators / Chrzan, K L ; Moro, F [I07/2007/I-002] [ENY-ARTICLE-2008-184]
This paper describes concentrated discharges on polluted insulators in the laboratory and in the field. [...]
http://zet10.ipee.pwr.wroc.pl/record/235/files/
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170. Hygroscopic properties of pollutants on silicone rubber surface / Chrzan, K L [I07/2007/I-042] [ENY-ARTICLE-2008-183]
Silicone rubber when contaminated by dust has the ability to transfer the hydrophobicity through pollutants. [...]
http://zet10.ipee.pwr.wroc.pl/record/234/files/
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171. Modeling of overhead transmission lines with line surge arresters for lightning overvoltages / Jaroszewski, M ; Pospieszna, J ; Ranachowski, P ; Rejmund, F [ENY-ARTICLE-2008-182]
Lightning is one of the most significant source of overvoltages in overhead transmission lines. [...]
http://zet10.ipee.pwr.wroc.pl/record/232/files/
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172. Influence of Partial Discharges on ZnO Varistors / Jaroszewski, M [ENY-ARTICLE-2008-181]
The varistors used in HV overvoltage limiters are constantly exposed to operating voltage and environmental hazards and also to transient hazards associated with, among others, overvoltages or pollution. [...]
http://zet10.ipee.pwr.wroc.pl/record/231/files/
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173. Effect of Voltage Harmonics Content on Arrester Diagnostic Result / Jaroszewski, M ; Kostyla, P ; Wieczorek, K [ENY-ARTICLE-2008-180]
Diagnoses of HV arresters are usually based on an analysis of total leakage current harmonics. [...]
http://zet10.ipee.pwr.wroc.pl/record/230/files/
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174. Changes in varistors properties after radial field test / Jaroszewski, M ; Korycki, P ; Wieczorek, K ; Zakrzewski, J [ENY-ARTICLE-2008-179]
ZnO varistors are used in commercial surge arresters in high voltage application in the area of power engineering. [...]
http://zet10.ipee.pwr.wroc.pl/record/229/files/
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175. Capacitance Changes in Degraded Metal Oxide Varistors / Jaroszewski, M ; Wieczorek, K ; Bretuj, W ; Kostyla, P [ENY-ARTICLE-2008-178]
ZnO based ceramics show a highly nonlinear current-voltage (I-V) characteristic due to intergranular layers at the boundaries of ZnO grains. [...]
http://zet10.ipee.pwr.wroc.pl/record/228/files/
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176. Conductivity of Aqueous Dust Solutions / Chrzan, K L [I07/1985/P-253] [ENY-ARTICLE-2008-176]
This paper presents an analysis of the conductivity of aqueous solutions of dusts occurring in the atmosphere, stressing the effect on [overhead] high voltage insulation. [...]
http://zet10.ipee.pwr.wroc.pl/record/226/files/
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177. Application de Revêtements en Silicone sur les Isolateurs en Porcelaine en Pologne / Chrzan, K L ; Teguar, M [I07/2008/I-001] [ENY-ARTICLE-2008-175]
Silicone coatings have been used to improve insulating properties of outdoor insulators, under polluted conditions, for over 30 years. [...]
http://zet10.ipee.pwr.wroc.pl/record/225/files/
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178. Power quality evaluation using advanced spectrum estimation methods / Leonowicz, Z ; Lobos, T [I07/2006/I-082] [ENY-ARTICLE-2008-174]
The authors show that the use of high-resolution spectrum estimation methods instead of Fourier-based techniques can improve the accuracy of measurement of spectral parameters of distorted waveforms encountered in power systems, in particular the estimation of the power quality indices (such as inter/harmonic groups and subgroups) . [...]
http://zet10.ipee.pwr.wroc.pl/record/223/files/
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Artykuły : Znaleziono 348 rekordów   początekpoprzedni169 - 178następnykoniec  skocz do rekordu: