Error Ratio Evaluation of Protection Core of Selected Older Distribution Current Transformers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F19%3A10244276" target="_blank" >RIV/61989100:27240/19:10244276 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8777940" target="_blank" >https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8777940</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EPE.2019.8777940" target="_blank" >10.1109/EPE.2019.8777940</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Error Ratio Evaluation of Protection Core of Selected Older Distribution Current Transformers

Popis výsledku v původním jazyce

Current transformer (CT) is one of the vital devices for metering electrical parameters of distribution and transmission networks. Requirements and specification are described in technical standards for 60 years at least, but ageing and performance after some time of on-site operation have not been described in recent works well, especially in conditions similar to network and climate situation in the Czech Republic. Due to the intended aim of using output values for technical state estimation of network components in RCM strategy development, only protection cores measurement for error ratio evaluation was proposed. The results of two selected older oil-insulated current transformers (5P10 class) from distribution network are presented in the paper. The cores are measured according to the protection CT accuracy class, and also, matching measuring CT accuracy class for a general overview of CT accuracy only. The equipment used for measurement is described. The highest current recordings, ratio error evaluation and values are presented and depicted. Results applicability is discussed. (C) 2019 IEEE.

Název v anglickém jazyce

Error Ratio Evaluation of Protection Core of Selected Older Distribution Current Transformers

Popis výsledku anglicky

Current transformer (CT) is one of the vital devices for metering electrical parameters of distribution and transmission networks. Requirements and specification are described in technical standards for 60 years at least, but ageing and performance after some time of on-site operation have not been described in recent works well, especially in conditions similar to network and climate situation in the Czech Republic. Due to the intended aim of using output values for technical state estimation of network components in RCM strategy development, only protection cores measurement for error ratio evaluation was proposed. The results of two selected older oil-insulated current transformers (5P10 class) from distribution network are presented in the paper. The cores are measured according to the protection CT accuracy class, and also, matching measuring CT accuracy class for a general overview of CT accuracy only. The equipment used for measurement is described. The highest current recordings, ratio error evaluation and values are presented and depicted. Results applicability is discussed. (C) 2019 IEEE.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 2019 20th International Scientific Conference on Electric Power Engineering, EPE 2019

ISBN

978-1-72811-333-3

ISSN

—

e-ISSN

2376-5631

Počet stran výsledku

5

Strana od-do

79-83

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Kouty nad Desnou

Datum konání akce

15. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000535890900015