Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1996.07c
- /
- Pages.1907-1909
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- 1996
Ultrasonic detection properties for partial discharge at the premolded joint of a 23kV cable
23kV급 조립형 케이블 접속재에서 부분방전 신호의 초음파 검출특성
-
Lee, Woo-Young
(Korea Electrotechnology Research Institute)
;
-
Ryoo, Hee-Suk
(Korea Electrotechnology Research Institute)
;
-
Sun, Jong-Ho
(Korea Electrotechnology Research Institute)
;
- Kim, Sang-Jun (Korea Electric Power Research Institute) ;
- Song, Il-Gun (Korea Electric Power Research Institute) ;
- Kim, Joo-Yong (Korea Electric Power Research Institute)
- Published : 1996.07.22
Abstract
In this paper, ultrsonic detection properties at a premolde joint utilized in a 23kV cables are studied. In a experiment a artificial defect within a joint and a measuring system are builded for generating discharges, gathering data about a detection properties, respectively. The experiment results show that one point detection is not allowed for monitoring a global status of a joint discharges and a detection sensitivity is less than 100pC. And also the attenuation and wave speed at the material of joint insulator are obtained.
Keywords