Transcription of Electromagnetic Compatibility (EMC) Low-Frequency Standards
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Page 1 SummaryIEC 61000-3-2: Limits for harmonic currentemissions (equipment inputcurrent 16A per phase)IEC 61000-3-4: Limitation of emission ofharmonic currents in low-voltagepower supply systems forequipment with rated currentgreater than 16 A per phaseElectromagnetic Compatibility (EMC) Low-Frequency StandardsStandards on Low-FrequencyEmission: IEC 61000-3-2 Goal:limitation of harmonic components of theinput current impressed on the publiclow-voltage supply system, for equipmentwith input current 16 A per phase Equipment to be connected to 220/380 V, 230/400 Vand 240/415 V systems operating at 50 Hz or 60 Hz No limits for systems with nominal voltage less than220 V (line-to-neutral) Four categories of equipment Absolute and/or relative limits (relative limits based oninput power)Page 2 Single-phaseequipmentIEC 61000-3-2: Measurement CircuitThree-phaseequipmentEUTInUZSGZMSM EUTInUZSGZMZSGZMZSGZMZSZMInInL1NL2L3 SMIEC 61000-3-2 Supply Source RequirementsTest voltage U at the EUT s terminals: rated voltage of the equipment.
Page 6 Class C > 25 W Harmonic order n 2 3 5 7 9 11 <= n <= 39 Maximum value expressed as a percentage of the fundamental input current of the luminaries 2
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EMC*Measurements, EMC measurements, EMC Measurements on Wireless Devices, EMC and variable speed drives, EMC and variable speed drives EMC, Electromagnetic compatibility, Introducing 2004/104/EC: The New Automotive EMC Directive, IEEE EMC Chapter - Hong Kong Section, IEEE EMC Chapter - Hong Kong Section EMC, Review of Automotive EMC Environment & Tests, Package leaflet: Information for the user