Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07c
- /
- Pages.1082-1084
- /
- 1998
The Leakage Current Analysis of ZnO Arrester Using Leakage Current Dete
피뢰기 누설전류 분석장치를 이용한 ZnO 피뢰기의 누설전류 변화 분석
- Kim, Young-Chun (Dept of Electrical Engineering Soongsil Univ.) ;
- Moon, Sun-Ho (Dept of Electrical Engineering Soongsil Univ.) ;
- Oh, Jung-Hwan (Dept of Electrical Engineering Soongsil Univ.) ;
-
Kim, Jae-Chul
(Dept of Electrical Engineering Soongsil Univ.) ;
- Lee, Young-Gil (ASIA R&D Co.)
- Published : 1998.07.20
Abstract
In this paper, we developed a diagnosis device for ZnO arrester to detect on-line leakage current and acquire data from the power distribution system. The arrester is important power equipment used in power transmission and distribution systems to protect the generator and the main transformer from surge and overvoltage. First of all we developed a diagnosis device for ZnO arrester leakage current. And then we detect the total leakage current by the developed device without disconnecting the arrester ground wire and analysis the 3rd order harmonic by Fast Fourier Transform(FFT) to diagnose the ZnO arrester deterioration. With measuring the total current and the resistive current of power distribution system in operation, we analysis the trend of resistive current component in the total leakage current. We expect the result will be promote the method to protect electrical utility and customer from accident.
Keywords