This part of EN 50598 specifies the Energy Efficiency indicators for power drive systems, motor starters, power electronics (e.g. Complete Drive Modules, CDM) used in motor driven applications in the power range of 0,12 kW up to 1000 kW.
This part of EN 50598 specifies the methodology for determination of losses of the complete motor system, the power drive system (PDS) and the CDM. It defines IE and IES-classes, their limit values and provides test procedures for the classification and the overall losses of the motor system.
Furthermore, this part of EN 50598 proposes a methodology for characterization of the best energy efficiency solution to be implemented, depending on the motor driven system architecture, the speed/load profile and the duty profiles of the application.
The structure of EN 50598 contains the following:
• the losses of a standardized reference PDS (RPDS) and the mathematical model of their calculation are given;
• requirements for determining the losses of a real PDS are given, and be classified in comparison to the RPDS;
• requirements for the type testing and the content of user documentation;
• some illustrations of losses in an overall system as an example are given in Annexes;
• information about system and drive topologies are given in Annexes.
Specific data on losses and IE/IES-classes are given for low voltage (100 V up and equal to 1 000 V) single axis AC/AC power drive systems with three phase induction motors. Geared motors shall be treated as standard motors.
This part of EN 50598 does not specify the methodology for eco-design for environmental impact. This is defined in Part 3 of EN 50598.
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