누설전류 검출에 의한 ZnO 피뢰기의 열화진단장치 개발

Development of a Deterioration Diagnostic Device for ZnO Arrester by Leakage Current Detection

  • 발행 : 1999.03.01

초록

In this paper, we develope a diagnosis device for ZnO arrester by detecting the leakage current in service. To diagnose the deterioration of ZnO arrester, the device detects the total leakage current which flows between an arrester and ground, and analyzes the resistive current(third harmonic current) which is an indicator of deterioration of ZnO arrester. We use the optical cable which can transfer a detected data without a noise, also use a microprocessor for a data storage, processing, and trend analysis. Experiment are executed to verify its performance in laboratory and the results show that the diagnosis device exactly detects the total leakage current and the resistive current, so it can diagnose the deterioration of ZnO arrester. Also the leakage current of ZnO arrester is detected using the developed diagnostic device in field, these results are presented.

키워드

참고문헌

  1. IEEE Transactions on Power Delivery v.3 no.3 Maintenance of Surge Arrester by a Portable Arrester Leakage Current Detector S. Shirakawa;F. Endo;H. Kitajima;S. Kobayashi;K. Kurita;K. Goto;M. Sakai
  2. 대한전기학회 하계학술대회 논문집 누설 전류의 제 3고조파 분석에 의한 ZnO 소자의 열화진단기술 이복희;강성만
  3. 대한전기학회 하계학술대회 논문집 컴퓨터를 이용한 피뢰기 누설전류 분석장치개발 김재철(외)
  4. IEEE Transactions on Power Systems v.PWRD-1 no.2 A Procedure for Estimating the Lifetime of Gapless Metal Oxide Surge Arresters for AC Application W. G. Carlson;T. K. Gupta;A. S. Sweetana
  5. IEEE Transactions on Power Delivery v.4 no.1 Appling Metal-Oxide Surge Arresters on Distribuiton Systems S. S. Kershaw;G. L. Gaibrois;K. B. Stump
  6. 디지탈 신호처리 이채욱