DIN EN 50463-2:2013-06

The Energy Measurement System (EMS) serves for the measurement and data suitable for billing and may also be used for energy management, for example, energy saving. The standard series DIN EN 50463 uses a functional approach to describe the Energy Measurement System. These functions are implemented in one or more physical devices. This part DIN EN 50463-2 deals with the requirements for the consumed active energy (EMF) which measures the consumed and regenerated active energy of a traction unit. If the traction unit is designed for use on a.c. traction supply systems the EMF also provides measurement of reactive energy. The EMF provides the measured quantities via an interface to the Data Handling System. The EMF consists of the three functions: Voltage Measurement Function, Current Measurement Function and Energy Calculation Function. For each of these functions, specific requirements and accuracy classes are specified and associated reference conditions are defined. The Conformity Assessment specifications for the Voltage Measurement Function, Current Measurement Function, Energy Calculation Function and complete Energy Measurement Function are also specified in this European Standard. The responsible committee is K 351 "Elektrische Ausrüstungen für Bahnen" ("Electrical equipment and systems for railways") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.