Voltage Control of On-Load Tap Changing Transformer in Distributed Network

Abstract

This paper deals with the basic concept of tap changing of transformer, types of tap changer and various voltage control methods used for On-load tap changing transformer in distribution network. These methods depend upon the series and parallel operation of On Load Tap Changing Transformer. In parallel operation-automatic voltage controller and low drop compensation controller are used. While in series operation grading time and communication based voltage control methods are used.