About: Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption

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About: Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Current transformers can be very easily affected by dc component of measured current. The behavior of such transformers can be different in comparison with normal conditions. The errors of power measurements arise in order of units of percent and can be both positive and negative according to the type of load for some type of current transformers. The errors are mainly caused by change of phase shift between primary and secondary current. The source of the problem is dc magnetic flux in the ferromagnetic core of the current transformer. The presence of dc magnetic field in ferromagnetic core of current transformer can be, in some cases, detected by analyzing the frequency spectrum of current signal using a microcontroller, usually by measuring the second harmonic. According to these results the energy meter is able to decide about possibility of unauthorized current consumption. Current transformers can be very easily affected by dc component of measured current. The behavior of such transformers can be different in comparison with normal conditions. The errors of power measurements arise in order of units of percent and can be both positive and negative according to the type of load for some type of current transformers. The errors are mainly caused by change of phase shift between primary and secondary current. The source of the problem is dc magnetic flux in the ferromagnetic core of the current transformer. The presence of dc magnetic field in ferromagnetic core of current transformer can be, in some cases, detected by analyzing the frequency spectrum of current signal using a microcontroller, usually by measuring the second harmonic. According to these results the energy meter is able to decide about possibility of unauthorized current consumption. (en)
Title	Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption (en)
skos:prefLabel	Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption Detection of Disturbance of Working Conditions of Current Transformer in Energy Meters for Reduction of Unauthorized Current Consumption (en)
skos:notation	RIV/68407700:21230/09:00159053!RIV11-MSM-21230___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6840770015)
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Kašpar, Petr Mlejnek, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	309777
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/09:00159053
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	energy meter; current transformer; disturbance (en)
http://linked.open.../riv/klicoveSlovo	disturbance current transformer energy meter
http://linked.open...ontrolniKodProRIV	[7096E429638F]
http://linked.open...v/mistoKonaniAkce	Taipei
http://linked.open...i/riv/mistoVydani	Taipei
http://linked.open...i/riv/nazevZdroje	PEDS 2009 - The Eighth International Conference on Power Electronics and Drive Systems
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Kašpar, Petr Mlejnek, Pavel
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000277469700052
http://linked.open.../riv/zahajeniAkce	2009-11-02 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Research of Methods and Systems for Measurement of Physical Quantities and Measured Data Processing.
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	IEEE Power Electronics Society - PELS
https://schema.org/isbn	978-1-4244-4166-2
http://localhost/t...ganizacniJednotka	21230

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