Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 22 records found  previous11 - 20next  jump to record: Search took 0.01 seconds. 
11.
Model of medium voltage metal oxide arrester / Chrzan, K L ; Pohl, Z ; Furgal, J [ENY-ARTICLE-2012-328]
Modelling of MOA is necessary for many reasons and a considerable progress in this field has been made. [...]
http://zet10.ipee.pwr.wroc.pl/record/415/files/
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12.
Diagnostics of high voltage metal oxide arresters procedure errors / Chrzan, K L ; Koehler, W [I07/2000/I-059] [ENY-ARTICLE-2008-193]
A technique has been described which can determine ac resistive current directly or by obtaining the watt loss of the test specimen and dividing by the true rms (trms) value or the applied voltage. [...]
http://zet10.ipee.pwr.wroc.pl/record/247/files/
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13.
Hydrogen Influence on Properties of Thin Film Arresters / Jaroszewski, M [ENY-ARTICLE-2008-129]
The influence of H2 atmosphere on the temperature dependence of resistivity of Zn-Bi-O thin films were characterized in this study. [...]
http://zet10.ipee.pwr.wroc.pl/record/167/files/
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14.
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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15.
Pollution Performance of 110 kV Metal Oxide Arresters / Chrzan, K L ; Pohl, Z ; Grzybowski, S ; Kohler, W [ENY-ARTICLE-2008-216]
Pollution test results of single unit 110 kV metal oxide surge arresters with porcelain housing according to the solid layer and salt fog methods are presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/270/files/
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16.
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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17.
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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18.
Electrochemical gas sensors can make DGA a portable screening procedure / Zylka, P [RZ I07/04/I-001] [ENY-ARTICLE-2008-047]
Dissolved Gas Analysis (DGA) in its classical chromatography-based laboratory approach has become a routine procedure for testing and assessment of power transformer condition. [...]
http://zet10.ipee.pwr.wroc.pl/record/56/files/
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19.
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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20.
Behaviour of zinc oxide surge arresters under pollution / Feser, K ; Kohler, W ; Qiu, D ; Chrzan, K L [I07/1990/I-114] [ENY-ARTICLE-2008-213]
This paper presents results of pollution tests with AC voltages which were carried out with a multi-unit zinc oxide arrester. [...]
http://zet10.ipee.pwr.wroc.pl/record/267/files/
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