Research on the Influence of Temperature Compensation Technology on the Accuracy of Electronic Voltage Transformer

Abstract

The accuracy of electronic voltage transformer (EVT) can be influenced by the variation of ambient temperature. The influence of ambient temperature on key components of EVTs is studied in this paper. The temperature characteristic of the EVTs' collector, and the influence of temperature compensation technology for the accuracy of EVTs was discussed as well via the error comparison between the traditional voltage transformers and EVTs with temperature compensation technology. Compared with EVT, the accuracy of traditional voltage transformer can be less affected by ambient temperature. According to the experimental results, it was clear that the accuracy of EVTs can be greatly improved by the temperature compensation technology.