Assessment of Losses in Distribution Transformers Connected to Special and Conventional Components Using Smart Meters

Abstract

The adoption of electric buses as a sustainable transportation alternative, in addition to the insertion of distributed generation, measurement and communication systems, transforms the traditional distribution systems into the so-called smart grids. This fact creates an environment suitable for the management and operation of different components connected to the electrical system, such as distribution transformers. Literature shows that the power losses in these transformers represent a considerable amount of the total losses in distribution systems. In the last decades, several methodologies have been proposed for the estimation and management of these losses. In this context, this paper discusses the power loss behavior in distribution transformers connected to conventional and special components, such as conventional loads, distributed generators and electric buses, highlighting how vital is the monitoring for the proper management of these assets. Results are based on actual measurements obtained from distribution transformers at the University of Campinas.