Determination of Instrument Current Transformer Errors in Frequency Range up to 1 kHz

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F18%3AN0000101" target="_blank" >RIV/00177016:_____/18:N0000101 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00177016:_____/18:N0000011 RIV/68407700:21230/18:00326613

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1742-6596/1065/5/052043/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/1065/5/052043/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/1065/5/052043" target="_blank" >10.1088/1742-6596/1065/5/052043</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Determination of Instrument Current Transformer Errors in Frequency Range up to 1 kHz

Popis výsledku v původním jazyce

Two procedures for determining instrument current transformer (ICT) errors in the specified frequency range are described in the paper. The basis is use of accurate, frequency independent resistors, the ratio of which corresponds to the ratio of measured currents. These resistors are included in the primary and secondary circuit of the measured ICT. The difference in voltage drops across them corresponds to the ratio error and their phase shift to the phase displacement. The evaluation of the real and imaginary component of this difference is performed using a lock-in amplifier, phase-locked at the voltage corresponding to the primary current. In the case of primary currents of 100 A to 1 000 A, the use of resistors in the primary circuit is difficult with respect to their power loss. The procedure using a current transducer is also described.

Název v anglickém jazyce

Determination of Instrument Current Transformer Errors in Frequency Range up to 1 kHz

Popis výsledku anglicky

Two procedures for determining instrument current transformer (ICT) errors in the specified frequency range are described in the paper. The basis is use of accurate, frequency independent resistors, the ratio of which corresponds to the ratio of measured currents. These resistors are included in the primary and secondary circuit of the measured ICT. The difference in voltage drops across them corresponds to the ratio error and their phase shift to the phase displacement. The evaluation of the real and imaginary component of this difference is performed using a lock-in amplifier, phase-locked at the voltage corresponding to the primary current. In the case of primary currents of 100 A to 1 000 A, the use of resistors in the primary circuit is difficult with respect to their power loss. The procedure using a current transducer is also described.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/8B15006" target="_blank" >8B15006: Metrology for the electrical power industry</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

22nd World Congress of the International Measurement Confederation

ISBN

—

ISSN

1742-6596

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

The Institute of Measurement and Control

Místo vydání

London, UK

Místo konání akce

Belfast, UK

Datum konání akce

3. 9. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—