Title :
Calculation and Analysis of Polarity Reversal Electric Field in Valve Winding End of Converter Transformer
Author :
Li, Yan ; Tang, Cong ; Li, Dongxue
Author_Institution :
Res. Instn. of Special Machines, Shenyang Univ. of Technol., Shenyang, China
Abstract :
Under the effects of DC voltage and polarity reversal voltages, electric field distribution in valve winding of converter transformer gets more complicated than common power transformer. The polarity reversal electric field of converter transformer is computed by finite element software. The effects of insulation material resistivity to polarity reversal electric field are analyzed.
Keywords :
transformer windings; DC voltage; converter transformer; electric field distribution; insulation material resistivity; polarity reversal electric field; polarity reversal voltage; valve winding; Conductivity; Converters; Electric fields; Oil insulation; Power transformer insulation; Windings;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-6253-7
DOI :
10.1109/APPEEC.2011.5748741
