Naslov
Determining the Residual Magnetic Flux Value of a Single-Phase Transformer Using a Minor Hysteresis Loop

Autori
Vulin, Dragan ; Miličević, Kruno ; Biondić, Ivan ; Petrović, Goran

Izvornik
IEEE transactions on power delivery (0885-8977) 36 (2021), 4; 2066-2074

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
inrush current ; minor hysteresis loop ; residual magnetic flux ; transformer

Sažetak
Residual magnetic flux can cause significant problems in electric power system operation if not taken into consideration. The laboratory setup and experimental procedure for determining the residual magnetic flux value of a single- phase transformer using a minor hysteresis loop are presented in this paper. Using the proposed method, residual magnetic flux could be determined without prior knowledge about the last de-energization of the transformer. Only voltage and current measurements are needed, and any physical intervention in the core or in some other parts of the transformer is unnecessary. Also, a significantly lower voltage than the transformer's nominal is used to determine the residual magnetic flux value in the proposed method. The pros and cons of the proposed method, as well as plans for future research are given.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA