Interlaboratory Comparison of Thermal AC Voltage Standards

Abstract

The article presents results of comparison of the thermal converter of nominal input voltages equal to 10 V from the set of Polish National AC voltage standards, maintained at the Central Office of Measures in Warsaw, with the primary AC voltage 5 V standard, developed and maintained at the AC-DC Transfer Laboratory of the Department of Measurement Science, Electronics and Control at the Faculty of Electrical Engineering of the Silesian University of Technology in Gliwice.

Wideband AC Voltage Standards

“…In the frequency range from approximately 10 kHz to approximately 1 MHz, the influence of the skin effect dominates. The AC-DC transfer difference in this frequency range is determined by comparison with a converter of a known transfer difference [3,28] or calculated based on a mathematical model of the converter, in which there are geometric dimen-sions and material constants of the TVC [29]. Converters with calculated δ AC-DC are called calculable.…”