Tehnički vjesnik, Vol. 17 No. 2, 2010.
Izvorni znanstveni članak
Transients in no-load condition of power transformer 20/0,4 kV
Damir Crnković
; HEP-ODS d.o.o. Elektroslavonija Osijek, Šet. K. F. Šepera 1A, 31000 Osijek, Croatia
Nino Vrandečić
; HEP-ODS d.o.o. Elektroslavonija Osijek, Šet. K. F. Šepera 1A, 31000 Osijek, Croatia
Marinko Stojkov
orcid.org/0000-0003-1727-1766
; Strojarski fakultet Slavonski Brod, Trg Ivane Brlić-Mažuranić 2, 35000 Slavonski, Croatia
Sažetak
Innovative approach in power system transient analysis is presented in the paper, applying a new proposed method to process data obtained from processor built in modern protection power relays. The transients, described here appeared precisely while turning the power transformer on and setting it in the no-load condition. The analyzed power transformers 20/0,4 kV are installed to meet the auxiliary needs of the transformer substation TS 110/20 kV Osijek-4 with electric power. Time response graphic presentations of main power parameters and Fourier analysis of higher harmonics are presented in this paper.
Ključne riječi
Fourier analysis; harmonics; no-load condition; phase current; phase voltage
Hrčak ID:
55482
URI
Datum izdavanja:
30.6.2010.
Posjeta: 3.113 *