Title :
Analysis of the performance of two digital methods for measuring MOA resistance current
Author :
Liao, Ruijin ; Liu, Hao ; Song, Yang ; Sun, Caixin ; Mi, Yan
Author_Institution :
Key Lab. of High Voltage Eng. & Electr. New Technol., Chongqing Univ., China
Abstract :
In this paper, our main work includes the introduction of two digital methods for measuring MOA resistance current (harmonic analysis method and digital compensating method), elementary requirement for hardware realization, linear simulation in laboratory and field test. The experimental result shows that these two digital methods can measure resistance current efficiently under the situation of pure resistance with high harmonic disturbance, when the respective results of both methods are coincident. As for the prevailing concerned problem of voltage signal with harmonic content, by carrying out liner simulation and field test, we gained some constructive conclusions: with the increasing of harmonic content, harmonic analysis method compared with digital compensation method can more efficiently indicate the resistance current of MOA
Keywords :
arresters; compensation; digital instrumentation; electric current measurement; electric resistance measurement; harmonic analysis; MOA resistance current measurement; digital compensating method; field test; hardware realization; harmonic analysis method; harmonic content; high harmonic disturbance; linear simulation; metal oxide arrester; pure resistance; voltage signal; Current measurement; Electric resistance; Electric variables measurement; Electrical resistance measurement; Hardware; Harmonic analysis; Laboratories; Leakage current; Performance analysis; Voltage;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973786
