@article{Hrbac_Kolar_Bartlomiejczyk_Mlcak_Orsag_Vanc_2020, title={A Development of a Capacitive Voltage Divider for High Voltage Measurement as Part of a Combined Current and Voltage Sensor}, volume={26}, url={https://eejournal.ktu.lt/index.php/elt/article/view/25888}, DOI={10.5755/j01.eie.26.4.25888}, abstractNote={<p>This article deals with the development of capacitive voltage divider for high voltage measurements and presents a method of analysis and optimization of its parameters. This divider is a part of a combined voltage and current sensor for measurements in high voltage power networks. The sensor allows continuous monitoring of the network distribution status and performs a quick diagnosis and location of possible network failures. Deployment of these devices will support semi-autonomous control of power networks and it can be considered as a step from traditional power grids toward smart grids. This is a worldwide trend connected with increasing number of renewable energy sources and plug-in electric vehicles as described in. In this way, it contributes to the reliability of the distribution network. Together with automated control techniques and fault location methods, it enables its self-healing capability. The following characteristics required for the sensor include: current measurement error up to 2&nbsp;%, voltage measurement error up to 0.5&nbsp;%, and power measurement error up to 5&nbsp;%. At the same time, it is necessary that the sensor is cost-effective - relatively cheap. There were selected capacitors made in series production for the capacitive divider designing. The capacitive voltage divider was tested in terms of time and temperature stability; the results are described in the paper. Then, the method of mathematical correction of a temperature dependence of the capacitive voltage divider was suggested and tested.</p>}, number={4}, journal={Elektronika ir Elektrotechnika}, author={Hrbac, Roman and Kolar, Vaclav and Bartlomiejczyk, Mikolaj and Mlcak, Tomas and Orsag, Petr and Vanc, Jakub}, year={2020}, month={Aug.}, pages={25-31} }