The fourth edition of IEC 61800-3 “Adjustable speed electrical power drive systems - Part 3: EMC requirements and specific test methods for PDS and machine tools”1 was published by the IEC on 30 November 2022. It specifies electromagnetic compatibility (EMC) requirements for adjustable speed power drive systems (PDSs) and machine tools (MTs). A PDS is an AC or DC motor drive including an electronic converter. Requirements are stated for AC and DC PDSs and MTs with input and/or output voltages (line-to-line voltage), up to 35 kV AC RMS. This document defines the minimum requirements for emission and immunity in the frequency range from 0 Hz to 400 GHz. Tests are not required in frequency ranges where no requirements are specified.
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