A high voltage power supply and amplifier for Hall effect voltage/current transducers characterization

Undoubtedly voltage and current measurements under distorted conditions have recently gained more and more importance in the actual electric market; the deregulation acting in this field with the consequential liberalization and the augmented request of monitoring capabilities on the power quality from the power suppliers, is at the origin of an increased demand of measurement instruments of the various electric parameters with increased capabilities (greater precision, versatility, etc.), less expensive and with interfacing capabilities to permit their use in automatic measurement system. In this paper we expose the first results of an experimental research activity currently in progress at Polytechnic of Bari, aiming at the design and realization of testing equipment that is cheap, simple to use and accurate.