SN EN 61000-2-4 : 2002
Current
The latest, up-to-date edition.
ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 2-4: ENVIRONMENT - COMPATIBILITY LEVELS IN INDUSTRIAL PLANTS FOR LOW-FREQUENCY CONDUCTED DISTURBANCES
12-01-2013
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
3.1 General definitions
3.2 Phenomena-related definitions
4 Electromagnetic environment classes
5 Compatibility levels
5.1 General comment
5.2 Voltage deviations
5.3 Voltage dips and short-time interruptions
5.4 Voltage unbalance
5.5 Temporary power-frequency variation
5.6 Harmonics
5.7 Interharmonics
5.8 Voltage components at higher frequencies (above 50th
harmonic)
5.9 Transient overvoltages
5.10 DC component
6 Compatibility levels
Annex A (informative) Explanations and examples for
interharmonics
A.1 Resolution of non-sinusoidal voltages and currents
A.2 Time varying phenomena
A.3 Definition of additional terms
Annex B (informative) Examples of expected disturbance levels
in typical industrial networks
B.1 Voltage disturbance levels in industrial networks due
to large converters
B.2 Voltage disturbance levels in industrial networks at
high load
B.3 Voltages dips and short interruption
B.4 Transient overvoltages
Annex C (informative) Interharmonic and voltages at higher
frequencies
C.1 Sources of interharmonics
C.2 Mitigation methods
C.3 Voltages at higher frequencies
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
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