Title :
Leakage current based assessment of degradation of MOSA using an alternative technique
Author :
Karawita, Chandana ; Raghuveer, M.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Abstract :
In order to evaluate the condition of an arrester on-site, the total arrester current is measured from which the resistive component has to be obtained and used in diagnosis. Recently, it has been reported that the phase shift between the capacitive and resistive components of the arrester current is constant and independent of arrester condition and voltage harmonics. In this paper this concept has been verified and utilized but in a different manner to obtain the resistive current.
Keywords :
arresters; electric current measurement; fault diagnosis; harmonics; leakage currents; MOSA; arrester; capacitive component; current measurement; degradation assessment; diagnosis; leakage current; phase shift; resistive component; voltage harmonics; Aging; Arresters; Current measurement; Degradation; Integrated circuit testing; Leakage current; Phase measurement; Temperature; Valves; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2005. CEIDP '05. 2005 Annual Report Conference on
Print_ISBN :
0-7803-9257-4
DOI :
10.1109/CEIDP.2005.1560655
