Title :
The harmonic analysis method and its application in the on-line detection of electric equipment insulation
Author :
Ruijin, Liao ; Zhongyi, Wang ; Caixin, Sun ; Leguan, Gu ; Ping, Yan ; Bin, Yang
Author_Institution :
Chongqing Univ., China
Abstract :
This paper describes the harmonic analysis method which can be used to measure the resistance current of the metal oxide arrester (MOA) and the dielectric loss of the capacitive apparatus. The theory of this method and the requirement to the hardware circuit are introduced also. The testing and the analysis of the theory show that this method is more accurate and sensitive than the routine compensation method for measuring higher order harmonic of the resistance current, and it can improve the stability and the precision for measuring tgδ. At last, the actual measuring results of using this method in substation are given also
Keywords :
arresters; dielectric loss measurement; electric current measurement; harmonic analysis; insulation testing; capacitive apparatus; dielectric loss measurement; electric equipment insulation; hardware circuit; harmonic analysis; metal oxide arrester; on-line detection; power system; resistance current measurement; state maintenance method; substation; Arresters; Circuits; Current measurement; Dielectric loss measurement; Dielectric losses; Dielectric measurements; Electrical resistance measurement; Hardware; Harmonic analysis; Loss measurement;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875733
