IEC 61000-4-13 pdf download – Electromagnetic compatibility (EMC) – Part 4-13: Testing and measurement techniques – Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests
1Scope and object
This part of IEC 61000 defines the immunity test methods and range of recommended basictest levels for electrical and electronic equipment with rated current up to 16 A per phase atdisturbance frequencies up to and including 2 kHz (for 50 Hz mains) and 2,4 kHz (for 60 Hzmains) for harmonics and interharmonics on low voltage power networks.
lt does not apply to electrical and electronic equipment connected to 16 2/3 Hz , or to 400 Hza.c. networks.Tests for these networks will be covered by future standards.
The object of this standard is to establish a common reference for evaluating the functionalimmunity of electrical and electronic equipment when subjected to harmonics and inter-harmonics and mains signalling frequencies.The test method documented in this part of lEC61000 describes a consistent method to assess the immunity of an equipment or systemagainst a defined phenomenon.As described in lEC Guide 107, this is a basic EMC publicationfor use by product committees of the lEC.As also stated in Guide 107, the lEc productcommittees are responsible for determining whether this immunity test standard should beapplied or not,and if applied, they are responsible for determining the appropriate test levelsand performance criteria.TC 77 and its sub-committees are prepared to co-operate withproduct committees in the evaluation of the value of particular immunity tests for their products.
The verification of the reliability of electrical components (for example capacitors,filters，etc.)is not in the scope of the present standard.Long term thermal effects (greater than 15 min) arenot considered in this standard.
The levels proposed are more adapted for residential,commercial and light industryenvironments. For heavy industrial environments the product committees are responsible forthe definition of a class x with the necessary levels. They have also the possibility of definingmore complex waveforms for their own need. Nevertheless, the simple waveforms proposedhave been mainly observed on several networks (flat curve more often for single phasesystem) and also on industrial networks (overswing curve more for three phase systems).
2Normative references
The following referenced documents are indispensable for the application of this document.Fordated references, only the edition cited applies. For undated references, the latest edition ofthe referenced document (including any amendments) applies.
IEC 60050(161)，International Electrotechnical Vocabulary (IEV) – Chapter 161: Electro-magnetic compatibility
IEC 61000-2-2，Electromagnetic compatibility (EMC) – Part 2-2: Environment – Compatibilitylevels for low-frequency conducted disturbances and signalling in public low-voltage powersupply systems
IEC 61000-3-2，Electromagnetic compatibility(EMC) – Part 3-2:Limits – Limits for harmoniccurrent emissions (equipment input current s16 A per phase)
IEC 61000-4-7，Electromagnetic compatibility (EMC) – Part 4-7: Testing and measurementtechniques – General guide on harmonics and interharmonics measurements andinstrumentation, for power supply systems and equipment connected therefo
3Definitions
For the purposes of this part of lEC 61000, the following definitions and terms apply as well asthe definitions of lEC 60050(161y:
3.1
immunity
ability of a device,equipment or system to perform without degradation in the presence of anelectromagnetic disturbance
[IEV161-01-20]
3.2
harmonic (component)
component of order greater than 1 of the Fourier series of a periodic quantity[IEV 161-02-18]
3.3
fundamental (component)
component of order 1 of the Fourier series of a periodic quantity[IEV 161-02-17]
3.4
flat curve waveshape
waveform that follows a time related function in which each half-wave consists of three parts:Part 1: starts from zero and follows a pure sine function up to the specified value;
Part 2: is a constant value;
Part 3: follows a pure sine function down to zero
3.5
overswing waveshape
waveform which consists of discrete values of the fundamental harmonic，the 3 and the 5tharmonics with the specified phase shift
3.6
fi
fundamental frequency
3.7
mains signalling frequencies
signal frequencies between harmonics for control and communication
3.8
EUT
equipment under test
4 General
4.1 Description of the phenomenon
4.1.1 Harmonics
Harmonics are sinusoidal voltages and currents with frequencies that are integer multiples of the frequency at which the supply system operates.
IEC 61000-4-13 pdf download – Electromagnetic compatibility (EMC) – Part 4-13: Testing and measurement techniques – Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests
