A Development of a Capacitive Voltage Divider for High Voltage Measurement as Part of a Combined Current and Voltage Sensor

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F20%3A10245571" target="_blank" >RIV/61989100:27240/20:10245571 - isvavai.cz</a>

Result on the web

<a href="https://eejournal.ktu.lt/index.php/elt/article/view/25888" target="_blank" >https://eejournal.ktu.lt/index.php/elt/article/view/25888</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5755/j01.eie.26.4.25888" target="_blank" >10.5755/j01.eie.26.4.25888</a>

Result language

angličtina

Original language name

A Development of a Capacitive Voltage Divider for High Voltage Measurement as Part of a Combined Current and Voltage Sensor

Original language description

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 %, voltage measurement error up to 0.5 %, and power measurement error up to 5 %. 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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Elektronika ir elektrotechnika

ISSN

1392-1215

e-ISSN

—

Volume of the periodical

26

Issue of the periodical within the volume

4

Country of publishing house

LT - LITHUANIA

Number of pages

7

Pages from-to

25-31

UT code for WoS article

000558313300004

EID of the result in the Scopus database

2-s2.0-85091373190