Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2001.07c
- /
- Pages.1619-1622
- /
- 2001
Characteristics of Capacitive Coupler for Partial Discharge Measurement in 6.6kV Rotating Machines
6.6kV 회전기 부분방전 측정용 Capacitive Coupler 특성
-
Kang, Dong-Sik
(KERI)
;
-
Yoon, Dae-Hee
(KERI)
;
-
Kim, Yong-Joo
(KERI)
;
- Yun, Yung-Ho (Samwha Capacitor Co. Ltd.) ;
- Lee, Jung-Jun (Samwha Capacitor Co. Ltd.) ;
- Song, Sang-Ock (Advanced Electronic Technology Co. Ltd.)
- Published : 2001.07.18
Abstract
Recently many researches on the diagnosis of stator winding insulation for large rotating machines have been developed sine the 1970s. Capacitive coupler has been the most widely used sensor for on-line partial discharge(PD) in rotating machines. The 105 [pF] ceramic coupler(CC) has been developed to continuously measure the PD activity in operating motor stator windings. This paper presents frequency characteristics and laboratory test to compare traditional 80 [pF] epoxy-mica coupler(EMC) and 105 [pF] CC for PD measurement in 6.6 [kV] stator windings.
Keywords