Bilateral Comparisons of the Dissipation Factor of Capacitors at 1 KHZ

Abstract

Several attempts have been made to determine the dissipation factor or loss angle tangent of capacitors in the capacitance range from 10 pF to 1 nF and frequencies in the kHz range. In the past these determinations were in agreement, however, the uncertainties were quite high. The new comparisons reported here with considerably reduced uncertainties revealed some problems, the agreements are now within the estimated uncertainties.

A Study for Examining Dissipation Factors of Various Insulations and Test Transformers in the Wide Range of Frequency

“…The value of tan  is almost invariable with some values of voltage, but the curve of tan  (U) abruptly rises when voltage grows a definite limit U ion, , where begins the ionization. After passing the maximum point the curve slightly descends [7,8].…”