Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2006.07c
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- Pages.1511-1512
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- 2006
Comparison test for PD measuring about UHF-sensor and HFCT-sensor in cable joint-box of MV grade
MV급 케이블 중간접속부의 PD 측정을 위한 UHF-센서와 HFCT-센서의 비교시험
- Shin, Dong-Hoon (Wonkwang University) ;
- Lee, Yong-Sung (M-Power Co. LTD) ;
- Kim, Jung-Yoon (M-Power Co. LTD) ;
- Yang, Jong-Seok (Wonkwang University) ;
- Park, Noh-Joon (Wonkwang University) ;
- Park, Dae-Hee (Wonkwang University)
- Published : 2006.07.12
Abstract
In this paper, we measured PD signals from artificial surface defects and corona discharges under laboratory circumstances like the fields using both HFCT-sensor and UHF-sensor for MV grade XLPE cable with AMP, spectrum analyzer and oscilloscope. Also, detected signals were analyzed via PRPDA system in this paper. As a result, in this case of HFCT-sensor, the amount of background noise are larger than as compared to UHF-sensor. There is needed some hardware or software or software algorithm removing background noise effectively for diagnosis the underground power transmission cable in the case of HFCT-sensor.
Keywords