Pregled bibliografske jedinice broj: 1141230
Capacitively Graded Oil-Paper Insulation Behavior Under Repeated Flashover Conditions
Capacitively Graded Oil-Paper Insulation Behavior Under Repeated Flashover Conditions // EIC 2021 - 39th Electrical Insulation Conference, Virtual Event / McKinnon, David (ur.).
Piscataway (NJ): Institute of Electrical and Electronics Engineers (IEEE), 2021. str. 149-152 doi:978-1-6654-1564-4/21 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 1141230 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Capacitively Graded Oil-Paper Insulation Behavior
Under Repeated Flashover Conditions
Autori
Župan, Tomislav ; Novko, Ivan ; Žiger, Igor
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
EIC 2021 - 39th Electrical Insulation Conference, Virtual Event
/ McKinnon, David - Piscataway (NJ) : Institute of Electrical and Electronics Engineers (IEEE), 2021, 149-152
ISBN
978-1-6654-1564-4
Skup
39th Electrical Insulation Conference (EIC 2021)
Mjesto i datum
Online, 07.06.2021. - 28.06.2021
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
oil-paper insulation, graphite paper, flashover, disconnector restrike
Sažetak
In order to ensure the withstand capability of the high voltage apparatus against high- frequency transients, multiple chopped impulse test is usually defined. Such tests serve as a basis of replicating in-field phenomena produced by the operation of switching devices located in the vicinity of the apparatus. However, the testing procedure methodology proposed within the IEC/IEEE standards may not simulate the severity of actual effects in an adequate way. This work presents a novel approach in simulating such transient voltage stresses in the laboratory and gives insight on improving the standard testing procedures. Simplified insulation models are tested using the presented approach and standard diagnostic measurements are done on the models to investigate the insulation behavior during testing. The results show that mentioned high voltage transients’ effect on insulation, occurring during the disconnector pre-strikes or re-strikes, can be provoked by the given testing approach.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
