Improvement of quality and reliability of electric power supply using the supply transformer with under load tap change device

Abstract

On the base of the analysis of laws on voltage regulation by the supply transformers with the under load tap change device, the paper presents the modified regulation law, the use of which, unlike the known ones, allows to limit the number of tap changing of the supply transformer, which results in improvement of voltage quality of the consumers and the reliability of the under voltage tap change device operation.