Verification of Characteristics of Selected Current Transformers and Protection Relays

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F22%3A10250144" target="_blank" >RIV/61989100:27240/22:10250144 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9814156" target="_blank" >https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9814156</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/EPE54603.2022.9814156" target="_blank" >10.1109/EPE54603.2022.9814156</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Verification of Characteristics of Selected Current Transformers and Protection Relays

Popis výsledku v původním jazyce

Protection circuits, specifically current transformers and protection relays, are an important part of electrical networks, enabling safe operation and suppression of dangerous transients and fault conditions. While current transformer requirements and specifications have been standardized for many decades, the aging and wear process of field-installed units has not been a focus of documentation, especially in view of the climate and conditions of Central Europe. In the case of protection relays, works describing the fault recording function are not available, especially with real data. Therefore, this paper presents an experimental evaluation and description of both previously described problems. Measurements are performed per partes; a protection relay tester was used to link the two parts of the evaluation. Due to the intended goal of using the results for estimating the components of the distribution network components and implementing and developing a reliability-centered maintenance strategy, only fault-relevant values (protection cores error ratio, fault recording function) are used. The evaluation is carried out on two oil current transformers (CT) and four protection relays from three manufacturers. The highest current recordings, the evaluation of the error ratio and the values are presented, illustrated and discussed.

Název v anglickém jazyce

Verification of Characteristics of Selected Current Transformers and Protection Relays

Popis výsledku anglicky

Protection circuits, specifically current transformers and protection relays, are an important part of electrical networks, enabling safe operation and suppression of dangerous transients and fault conditions. While current transformer requirements and specifications have been standardized for many decades, the aging and wear process of field-installed units has not been a focus of documentation, especially in view of the climate and conditions of Central Europe. In the case of protection relays, works describing the fault recording function are not available, especially with real data. Therefore, this paper presents an experimental evaluation and description of both previously described problems. Measurements are performed per partes; a protection relay tester was used to link the two parts of the evaluation. Due to the intended goal of using the results for estimating the components of the distribution network components and implementing and developing a reliability-centered maintenance strategy, only fault-relevant values (protection cores error ratio, fault recording function) are used. The evaluation is carried out on two oil current transformers (CT) and four protection relays from three manufacturers. The highest current recordings, the evaluation of the error ratio and the values are presented, illustrated and discussed.

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

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

2022 22nd International Scientific Conference on Electric Power Engineering (EPE 2022) : conference proceedings : Kouty nad Desnou, Czech Republic; 8-10 June 2022

ISBN

978-1-66541-056-4

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Kouty nad Desnou

Datum konání akce

8. 6. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000863000100048