<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This article is devoted to the analysis of the possible influence of impedance asymmetry on the efficiency of electricity transmission and distribution in the electricity system in Slovakia, at a voltage level of 110 kV - 400 kV, using synchronic phasor monitoring results. For simplicity of calculations, in practice, the impedance imbalance from mutual interfacial inductive capacitances bonds is neglected. In this way, the 3-phase network is interpreted as symmetrical in the calculations. In this case, it is possible to determine only some components of losses (ohmic losses, corona loss, leakages, etc). The influence of impedance asymmetry can be quantified by calculation using the results of the monitoring of the synchronous phasors of selected electricity system elements (OHL, transformer, choke) or by 3-phase modelling of real system elements. frequency to test the transformer for induced over voltage test, and its characteristics is analysed.</p></abstract>

This article is devoted to the analysis of the possible influence of impedance asymmetry on the efficiency of electricity transmission and distribution in the electricity system in Slovakia, at a voltage level of 110 kV - 400 kV, using synchronic phasor monitoring results. For simplicity of calculations, in practice, the impedance imbalance from mutual interfacial inductive capacitances bonds is neglected. In this way, the 3-phase network is interpreted as symmetrical in the calculations. In this case, it is possible to determine only some components of losses (ohmic losses, corona loss, leakages, etc). The influence of impedance asymmetry can be quantified by calculation using the results of the monitoring of the synchronous phasors of selected electricity system elements (OHL, transformer, choke) or by 3-phase modelling of real system elements. frequency to test the transformer for induced over voltage test, and its characteristics is analysed.

Impact of impedance unbalance on the efficiency of electricity transmission and distribution - A case study

Univerzity of Žilina, Faculty of Electrical Engineering

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This article is devoted to the analysis of the possible influence of impedance asymmetry on the efficiency of electricity transmission and distribution in the...

Impact of impedance unbalance on the efficiency of electricity transmission and distribution - A case study

Published Online: Jan 19, 2018

Page range: 492 - 495

Received: Sep 10, 2017

DOI: https://doi.org/10.1515/jee-2017-0086

Keywords
efficincy of power transmission system, power transmission system, unbalance, losses reduction

© 2017 L’uboš Pavlov et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Impact of impedance unbalance on the efficiency of electricity transmission and distribution - A case study

Published Online: Jan 19, 2018

Page range: 492 - 495

Received: Sep 10, 2017

DOI: https://doi.org/10.1515/jee-2017-0086

Keywordsefficincy of power transmission system, power transmission system, unbalance, losses reduction

© 2017 L’uboš Pavlov et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
efficincy of power transmission system, power transmission system, unbalance, losses reduction