Critical SCADA applications to parallel operation of transformers in railway electrical traction

Abstract

The article describes the parallel operation of medium voltage (MV) transformers utilized in electric traction substations (ETS), their connection to the national power system (NPS), and the conditions required for the parallel operation of the ETS transformers. Solutions for the optimization of the parallel operation the MV transformers that power the electric railway traction system (ERTS) are discussed. In the case of multiple failure (fault transformers that serve a section) or load increase over the rated power provided by an electric traction substation (ETS), connection to the respective section of the adjacent ETS transformers is required. The parallel coupling of ETS is possible if High Power Transformers ERTS meet all the conditions for parallel operation. This mode of operation ensures the stability of the electricity distribution system for the consumer. SCADA systems can be used for monitoring critical situations and general optimization of electrical power supply of the railway electric traction system.