Repozytorium Eny Politechnika Wrocławska

Repozytorium W. Elektrycznego Politechniki Wrocławskiej Znaleziono 15 rekordów  1 - 10następny  skocz do rekordu: Szukanie trwało 0.00 sekund. 
1.
Calculation of Current Transformer Transient Errors / Wiszniewski, A [ENY-ARTICLE-2008-205]
Transient saturation of current transformers may cause maloperation of protective devices. [...]
http://zet10.ipee.pwr.wroc.pl/record/259/files/
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2.
Distance Digital Algorithm Immune to Saturation of Current Transformer / Wiszniewski, A ; Szafran, J [I08/1989/I-044] [ENY-ARTICLE-2008-206]
Saturation of current transformers due to slowly decaying primary current D. [...]
http://zet10.ipee.pwr.wroc.pl/record/260/files/
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3.
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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4.
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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5.
Current Transformer Saturation Detection with Genetically Optimized Neural Networks / Rebizant, W ; Bejmert, D [ENY-ARTICLE-2008-146]
Application of the genetic algorithm (GA) for optimization of artificial neural network (ANN) based CT saturation detector is presented. [...]
http://zet10.ipee.pwr.wroc.pl/record/185/files/
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6.
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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7.
Ultrasaturation Phenomenon in Power Transformers—Myths and Reality / Wiszniewski, A ; Rebizant, W ; Bejmert, D ; Schiel, L [ENY-ARTICLE-2008-199]
In this paper, the ultrasaturation phenomenon of power transformers during their energization is studied. [...]
http://zet10.ipee.pwr.wroc.pl/record/253/files/
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8.
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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9.
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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10.
Prediction of CT saturation period for differential relay adaptation purposes / Rebizant, W ; Hayder, T ; Schiel, L [ENY-ARTICLE-2008-147]
A new approach to CT saturation assessment is presented in the paper. [...]
http://zet10.ipee.pwr.wroc.pl/record/186/files/
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