Application of SFRA method for evaluation of short-circuit tests of power transformers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00360909" target="_blank" >RIV/68407700:21230/22:00360909 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/9905115" target="_blank" >https://ieeexplore.ieee.org/document/9905115</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/Diagnostika55131.2022.9905115" target="_blank" >10.1109/Diagnostika55131.2022.9905115</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of SFRA method for evaluation of short-circuit tests of power transformers

Popis výsledku v původním jazyce

Short-circuit tests are among the standard tests of power transformers. Stressing of transformer winding with large short-circuit currents creates a force action that the transformer must withstand up to some limits. During these kind of tests, the mechanical condition of the transformer winding is usually diagnosed by measuring the short-circuit winding reactance. Recently, the SFRA method has been increasingly used for this purpose. The SFRA methods are based on comparing the transmission characteristics of power transformers before and after the test. The paper is focused on the research of possible use of SFRA methods in short circuit tests. Different methods of evaluation of measured transfer characteristics on real power transformers are compared. As a result, the sensitivity of the method to winding deformations and the possibility of early fault prediction during short-circuit tests are assessed. Early prediction of a possible fault is important for the safe conduct of the test without damage to the test equipment.

Název v anglickém jazyce

Application of SFRA method for evaluation of short-circuit tests of power transformers

Popis výsledku anglicky

Short-circuit tests are among the standard tests of power transformers. Stressing of transformer winding with large short-circuit currents creates a force action that the transformer must withstand up to some limits. During these kind of tests, the mechanical condition of the transformer winding is usually diagnosed by measuring the short-circuit winding reactance. Recently, the SFRA method has been increasingly used for this purpose. The SFRA methods are based on comparing the transmission characteristics of power transformers before and after the test. The paper is focused on the research of possible use of SFRA methods in short circuit tests. Different methods of evaluation of measured transfer characteristics on real power transformers are compared. As a result, the sensitivity of the method to winding deformations and the possibility of early fault prediction during short-circuit tests are assessed. Early prediction of a possible fault is important for the safe conduct of the test without damage to the test equipment.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

2022 International Conference on Diagnostics in Electrical Engineering (Diagnostika)

ISBN

978-1-6654-8082-6

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

—

Název nakladatele

Institute of Electrical and Electronics Engineers, Inc.

Místo vydání

—

Místo konání akce

Plzeň

Datum konání akce

6. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000950502400026