Author :
Schon, K. ; Lemke, E. ; Bergman, A. ; Garnacho, F. ; Muhr, M. ; Rizzi, G. ; Sardi, A. ; Lucas, W. ; Elze, H. ; Gunnarsson, O. ; Simon, P. ; Pack, S. ; Giorgi, P.A. ; Pesavento, G. ; Gobbo, R. ; Gomez, F.N. ; Domingues, F. ; Blanc, I. ; Hällström, J. ; Zae
Abstract :
Within the framework of a European project, two partial discharge calibrators were circulated to thirteen laboratories for an intercomparison of impulse charge measurements in the range between 1 pC and 500 pC. The deviations of the charge values q reported by the laboratories were, with a very few exceptions, within ±(0.1 pC+0.03·q). Furthermore, the characteristics of several partial discharge measuring instruments were investigated. The indication of some of the instruments showed deviations of more than ten percent from the correct values