Original scientific paper
Measurement of Circulating Currents in Split- Winding Transformer and Comparison with Numerical Calculation
Leonardo Štrac
; Končar – Power Transformers Ltd., J. Mokrovića 12, 10090 Zagreb, Croatia
Juraj Haramustek
; Končar – Power Transformers Ltd., J. Mokrovića 12, 10090 Zagreb, Croatia
Matej Dorešić
; Končar – Power Transformers Ltd., J. Mokrovića 12, 10090 Zagreb, Croatia
Davor Švarc
; Končar – Power Transformers Ltd., J. Mokrovića 12, 10090 Zagreb, Croatia
B. Jurišić
; Končar Electrical Engineering Institute, Fallerovo šetalište 22, 10000, Zagreb, Croatia
Abstract
Split-winding transformer is a one of the common transformer types with one low-voltage winding placed above
the other low-voltage winding and with the jointly high-voltage and regulation winding. The paper investigates circulating
currents that occur in high-voltage and regulation windings in case of nonsymmetric load. In addition, measurement of
circulating currents for a case of 240MVA, 220 kV transformer is presented along with a numerical calculation of circulating
currents and compared with the measurement.
Keywords
Power transformer, split-winding, circulating currents
Hrčak ID:
247106
URI
Publication date:
30.12.2019.
Visits: 816 *