Repozytorium Eny Politechnika Wrocławska

Repozytorium W. Elektrycznego Politechniki Wrocławskiej Znaleziono 13 rekordów  1 - 10następny  skocz do rekordu: Szukanie trwało 0.01 sekund. 
1.
An assessment of ageing of oxide varistors exposed to pulse hazards using dielectric spectroscopy / Jaroszewski, M ; Pospieszna, J [I07/2004/I-019] [ENY-ARTICLE-2008-115]
The common use of zinc oxide varistors has brought about qualitative changes in the overvoltage protection of electronic and electric power equipment. [...]
http://zet10.ipee.pwr.wroc.pl/record/144/files/
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2.
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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3.
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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4.
Degradation of metal oxide varistors caused by electrical stresses / Chrzan, K L [ENY-ARTICLE-2013-350]
The degradation of ZnO elements under AC or DC operating voltage and impulse current is described. [...]
http://zet10.ipee.pwr.wroc.pl/record/437/files/
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5.
Degradation and destruction of ZnO varistors caused by current pulses / Chrzan, K L ; Wroblewski, Z. [ENY-ARTICLE-2013-345]
Although the modern metal oxide elements are resistant to degradation caused by continuous operating voltage the degradation or destruction caused by current impulses, especially lightning currents, is still a serious problem. [...]
http://zet10.ipee.pwr.wroc.pl/record/432/files/
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6.
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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7.
Influence of moisture and partial discharges on the degradation of high-voltage surge arresters. / Chrzan, K L [ENY-ARTICLE-2012-321]
This paper reports the influence of moisture and internal partial discharges on the degradation of metal oxide varistors in high-voltage surge arresters. [...]
http://zet10.ipee.pwr.wroc.pl/record/408/files/
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8.
Internal partial discharges test for metal oxide surge arresters / Chrzan, K L [ENY-ARTICLE-2012-327]
Proposals for testing of surge arresters performance under internal partial discharge stress by Sakshaug, Chrzan and Korycki have been presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/414/files/
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9.
Numerical calculation of varistor model for sinusoidal signal / Kostyla, P [ENY-ARTICLE-2008-124]
ZnO varistors are semiconductor devices with highly nonlinear current-voltage characteristic and are widely used as devices for overvoltage protection. [...]
http://zet10.ipee.pwr.wroc.pl/record/162/files/
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10.
Methods of Determining Internal Parameters of Varistor Model / Jaroszewski, M ; Kostyla, P [ENY-ARTICLE-2008-122]
ZnO varistors are semiconductor devices with highly nonlinear current-voltage characteristic and are widely used as devices for overvoltage protection. [...]
http://zet10.ipee.pwr.wroc.pl/record/160/files/
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