Title :
A new approach to monitor copper sulphide migration in paper oil insulation of transformers
Author :
Ravi, Kumar A. ; Akshatha, A. ; Rajan, J.
Author_Institution :
R&D Manage. Div., Central Power Res. Inst., Bangalore, India
fDate :
June 29 2014-July 3 2014
Abstract :
Progressive formation and migration of copper sulphide in paper oil insulation has been studied using Frequency domain spectroscopy and real/imaginary part of complex permittivity. Two specimen configurations namely pigtail sample and laboratory model transformer have been used for understanding the performance of paper oil insulation under conditions of copper corrosion. It is observed that both FDS and permittivity variations with frequency can be used for understanding the progressive migration of copper sulphide.
Keywords :
permittivity; power transformer insulation; transformer oil; complex permittivity; copper corrosion; copper sulphide migration; frequency domain spectroscopy; laboratory model transformer; paper oil insulation; permittivity variations; pigtail sample; Frequency domain spectroscopy; Model transformer; Paper oil insulation; copper sulphide; permittivity;
Conference_Titel :
Dielectric Liquids (ICDL), 2014 IEEE 18th International Conference on
Conference_Location :
Bled
DOI :
10.1109/ICDL.2014.6893135
