Electrical Engineering Wroclaw University of Technology

Electrical Engineering Wroclaw University of Technology 192 records found  beginprevious71 - 80nextend  jump to record: Search took 0.02 seconds. 
71. Transverse Interference Voltages on Secondary Protection Wiring at Substations / Wiszniewski, A ; Marczonek, S [ENY-ARTICLE-2008-204]
This paper presents simple equivalent circuits which enables calculation of expected values of transverse interference voltages on various secondary circuits at Substations. [...]
http://zet10.ipee.pwr.wroc.pl/record/258/files/
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72. CT saturation correction based on the estimated CT saturation time constant / Rebizant, W ; Wiszniewski, A ; Schiel, L [I08/2008/I-021] [ENY-ARTICLE-2008-203]
A new method for CT saturation correction is presented that is based on an on-line estimation of the CT magnetizing inductance. [...]
http://zet10.ipee.pwr.wroc.pl/record/257/files/
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73. Correction of Current Transformer Transient Performance / Wiszniewski, A ; Rebizant, W ; Schiel, L [ENY-ARTICLE-2008-202]
If a current transformer (CT) saturates while transforming the heavy primary current, in each period, there are sections when the magnetic core is unsaturated and transformation is correct, and when it is saturated, it causes enormous errors. [...]
http://zet10.ipee.pwr.wroc.pl/record/256/files/
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74. New Criteria of Voltage Stability Margin for the Purpose of Load Shedding / Wiszniewski, A [ENY-ARTICLE-2008-201]
Voltage instability is a phenomenon which often contributes to the development of power system disturbances. [...]
http://zet10.ipee.pwr.wroc.pl/record/255/files/
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75. Thermally stimulated current in high resistivity Cd0.85Mn0.15Te doped with Indium. / Wrobel, J M ; Gubanski, A ; Placzek-Popko, E ; Rezmer, J ; et al [I09/2008/I-044] [ENY-ARTICLE-2008-200]
Charge carrier traps in Cd(0,85)Mn(0,15)Te doped with indium were studied using thermally stimulated current measurements. [...]
http://zet10.ipee.pwr.wroc.pl/record/254/files/
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76. How to Reduce Errors of Distance Fault Locating Algorithms / Wiszniewski, A [ENY-ARTICLE-2008-198]
Distance fault locating digital algorithms are often based on the processing of fundamental components which are contained in the currents and Voltages. [...]
http://zet10.ipee.pwr.wroc.pl/record/252/files/
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77. A multi-criteria differential transformer relay based on fuzzy logic / Wiszniewski, A ; Kasztenny, B [ENY-ARTICLE-2008-197]
This paper presents a digital relay scheme for the primary protection of power transformers. [...]
http://zet10.ipee.pwr.wroc.pl/record/251/files/
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78. 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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79. Impact of environmental conditions in West Europe, Poland and Algeria on outdoor insulators performance and selection / Chrzan, K L ; Abdi, S E [I07/2007/I-045] [ENY-ARTICLE-2008-192]
This paper presents the data of environmental conditions in France, Germany, Poland and Algeria. [...]
http://zet10.ipee.pwr.wroc.pl/record/246/files/
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80. Time-frequency analysis of non-stationary phenomena in electrical engineering / Bracale, A ; Carpinelli, G ; Wozniak, K ; Sikorski, T ; et al [I07/2006/I-037] [ENY-ARTICLE-2008-191]
This paper serves the idea of applying joint time-frequency representations in electrical engineering. [...]
http://zet10.ipee.pwr.wroc.pl/record/242/files/
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