Title :
Analysis of transformer inrush current and comparison of harmonic restraint methods in transformer protection
Author_Institution :
Basler Electr. Co., Highland, IL, USA
Abstract :
Security is of concern in differential protection during transformer energization. Inrush current occurs mostly in only one side of the transformer and could cause a false differential trip. A common restraint method is to use the second harmonic information in the inrush current to secure differential protection when energizing transformers.
Keywords :
power system harmonics; power transformer protection; common restraint method; differential protection; false differential trip; harmonic restraint methods; second harmonic information; transformer energization; transformer inrush current; transformer protection;
Conference_Titel :
Petroleum and Chemical Industry Technical Conference (PCIC), 2012 Record of Conference Papers Industry Applications Society 59th Annual IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0924-0
DOI :
10.1109/PCICON.2012.6549675
