Title :
Feasibility analysis of transformer winding DC resistance measuring on-line
Author :
Li, Baoshu ; Guo, Yu ; Zhao, Shutao
Author_Institution :
State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Baoding, China
Abstract :
In this paper, several existing measurement methods on transformer winding direct current (DC) resistance are introduced, and its shortcomings are also analyzed. Through transformer winding DC resistance measuring experiments with AC power supply, which separated iron core loss form winding copper loss in transformer by adopting power separation, and then the DC resistance can be calculated based copper loss and the winding current. The measuring results show that transformer winding DC resistance can be derived in AC power condition, and the DC resistance measurement online can be realized.
Keywords :
electric resistance measurement; losses; power transformers; transformer cores; transformer windings; AC power supply; feasibility analysis; iron core loss; online DC resistance measurement; power separation; transformer winding; winding copper loss; Current measurement; Electrical resistance measurement; Loss measurement; Power measurement; Resistance; Voltage measurement; Windings; DC resistance; online measurement; transformer winding;
Conference_Titel :
Systems and Informatics (ICSAI), 2012 International Conference on
Conference_Location :
Yantai
Print_ISBN :
978-1-4673-0198-5
DOI :
10.1109/ICSAI.2012.6223061
