ČSN EN IEC 61800-3 ed. 3 - Systémy elektrických výkonových pohonů s nastavitelnou rychlostí - Část 3: Požadavky EMC a specifické zkušební metody

3.3.10 power interface

connections needed for the distribution of electrical power Note 1 to entry: See Figure 3 for an example of power interface and Clause E.1 for an explanation. Note 2 to entry: The power interfaces of the PDS may have different forms and extensions: Within the CDM/BDM A power interface can be the connection for distribution of electrical power from one part of the BDM/CDM to another part of the BDM/CDM. One power interface can be common to different components of the PDS. For examples, see Figure 3 and Figure 4. Figure 3 shows a power interface which distributes power from an input converter (where power is converted from the mains to another type, here DC power) to output inverters (where power is converted from an intermediate form (here DC) to another type (here AC) which can be directly applied to AC motors). Figure 4 shows a power interface which distributes power from the secondary of a transformer (which is part of the CDM) to individual BDMs. Within the PDS Note that the connection between the inverter and the motor or the motors is also a power interface. It is the last power interface before the conversion to mechanical power. Figure 3 – Power interfaces of a PDS with common DC BUS Figure 4 – Power interfaces with common input transformer