Title :
The effect of threshold voltage of PD sensors on RPDIV and RPDEV of twisted-pair samples
Author :
Kimura, K. ; Matsumura, Takeshi
Author_Institution :
Nara Nat. Coll. of Technol., Nara, Japan
Abstract :
Using a newly developed PD measuring system with RFCT and horn antenna under repetitive voltage impulses, RPDIV and RPDEV of twisted-pair were obtained according to the definition of IEC61934Ed.2.0. Weibull distribution of hundred RPDIV and RPDEV shows that PRDIV is always higher than RPDEV for both PD sensors and that the difference was less than 5% of RPDIV. The difference of sensitivity of PD sensors was discussed with threshold voltage for the calculation of RPDIV and RPDEV. Recalculation shows the linear dependence of threshold voltage on RPDIV and RPDEV.
Keywords :
current transformers; electric sensing devices; horn antennas; partial discharge measurement; IEC61934Ed.2.0; Weibull distribution; horn antenna; linear dependence; partial discharge sensors; radio frequency current transformer; repetitive PD extinction voltage; repetitive PD inception voltage; repetitive voltage impulses; sensitivity; threshold voltage; twisted-pair samples; Antenna measurements; Horn antennas; Noise measurement; Partial discharges; Sensors; Threshold voltage; Voltage measurement; IEC; RPDEV; RPDIV; partial discharges; repetitive impulse; sensors; threshold;
Conference_Titel :
Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-4-88686-074-3
DOI :
10.1109/ISEIM.2011.6826366
