Title :
Study on Moisture in Oil-Paper Insulation by Frequency Domain Spectroscopy
Author :
Wei, Guo ; Saha, Tapan Kumar
Author_Institution :
Sch. of Electr. Eng., Southwest Jiaotong Univ., Chengdu, China
Abstract :
For estimating moisture of oil-paper insulation, the frequency domain spectroscopy measurements were used to model oil-paper insulation system. Then the dielectric spectroscopy of oil-paper insulation system was tested. And give the formula of the moisture. The influence of oil gap on the test results of oil-paper insulation response was discussed. The results showed that the influence of oil gap on the test results is less than 10%, and the dielectric response method can effectively estimating moisture of oil-paper insulation.
Keywords :
estimation theory; impregnated insulation; insulation testing; moisture; power transformer insulation; spectroscopy; dielectric spectroscopy; frequency domain spectroscopy; moisture estimation; oil gap; oil impregnated pressboard insulation; oil paper insulation; Dielectric losses; Electrodes; Moisture; Oil insulation; Permittivity;
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.2011.5748671
