Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2001.07c
- /
- Pages.1616-1618
- /
- 2001
Characteristics of RFCT for Partial Discharge Measurement in the Stator Winding of Rotating Machines
회전기 고정자 권선의 부분방전 측정용 RFCT 특성
-
Kang, Dong-Sik
(KERI)
;
-
Yoon, Dae-Hee
(KERI)
;
-
Hwang, Don-Ha
(KERI)
;
-
Kim, Yong-Joo
(KERI)
;
- Chang, Ki-Chan (Green Motech Co. Ltd.) ;
- Song, Sang-Ock (Advanced Electronic Technology Co. Ltd.)
- Published : 2001.07.18
Abstract
In recent the on-line partial discharge (PD) measurement using sensors, such as EMC, SSC, RTD and RFCT, as an indicator of stator winding insulation condition has been developed. RFCT sensor was placed arounding a grounding lead of surge capacitor to detecting PD. Trend of PD magnitude/phase angle/pulse number over time are useful parameter to diagnosis aging state. We have developed Radio Frequency Current Transformer(RFCT) sensor which is suitable for PD diagnostic measurement in 6.6kV rotating machines. In this paper, we describe the characteristics of RFCT sensor, such as frequency and PD magnitude using 6.6 kV model stator winding in Lab.
Keywords