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IEC 61000-4-11
Edition 3.0 2020-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC EMC PUBLICATION
Electromagnetic compatibility (EMC) –
Part 4-11: Testing and measurement techniques – Voltage dips, short
interruptions and voltage variations immunity tests for equipment with input
current up to 16 A per phase
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IEC 61000-4-11
Edition 3.0 2020-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
BASIC EMC PUBLICATION
Electromagnetic compatibility (EMC) –
Part 4-11: Testing and measurement techniques – Voltage dips, short
interruptions and voltage variations immunity tests for equipment with input
current up to 16 A per phase
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.20 ISBN 978-2-8322-7832-1
– 2 – IEC 61000-4-11:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 4
INTRODUCTION . 2
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General . 9
5 Test levels . 9
5.1 General . 9
5.2 Voltage dips and short interruptions . 10
5.3 Voltage variations. 11
6 Test instrumentation . 12
6.1 Test generator . 17
6.1.1 General . 17
6.1.2 Characteristics and performance of the generator . 17
6.1.3 Verification of the characteristics of the voltage dips, short interruptions
generators . 18
6.2 Power source . 19
7 Test set-up . 19
8 Test procedures . 19
8.1 General . 19
8.2 Laboratory reference conditions . 20
8.2.1 Climatic conditions . 20
8.2.2 Electromagnetic conditions . 20
8.3 Execution of the test . 20
8.3.1 General . 20
8.3.2 Voltage dips and short interruptions . 20
8.3.3 Voltage variations (optional) . 21
9 Evaluation of test results . 21
10 Test report . 22
Annex A (normative) Test circuit details . 23
A.1 Test generator peak inrush current drive capability . 23
A.2 Current monitor's characteristics for measuring peak inrush current
capability . 23
A.3 EUT peak inrush current requirement . 23
Annex B (informative) Electromagnetic environment classes . 25
Annex C (informative) Test instrumentation. 26
Annex D (informative) Rationale for generator specification regarding voltage, rise-
time and fall-time, and inrush current capability . 29
D.1 Concept of basic standard . 29
D.2 IEC 61000-4-11:1994 (first edition) . 29
D.3 Rationale for the need of rapid fall-times . 29
D.4 Interpretation of the rise-time and fall-time requirements during EUT testing . 30
D.5 Main conclusions . 30
D.6 Rationale for inrush current capability . 30
Bibliography . 32
Figure 1 – Voltage dip - Examples . 13
Figure 2 – Short interruption . 14
Figure 3 – Detailed view of rise and fall time . 15
Figure 4 – Voltage variation . 16
Figure 5 – Phase-to-neutral and phase-to-phase testing on three-phase systems . 21
Figure A.1 – Circuit for determining the inrush current drive capability of the short
interruptions generator . 24
Figure A.2 – Circuit for determining the peak inrush current requirement of an EUT . 24
Figure C.1 – Schematics of test instrumentation for voltage dips, short interruptions
and voltage variations . 27
Figure C.2 – Schematic of test instrumentation for three-phase voltage dips, short
interruptions and voltage variations using a power amplifier . 28
Table 1 – Preferred test levels and durations for voltage dips . 11
Table 2 – Preferred test levels and durations for short interruptions . 11
Table 3 – Timing of short-term supply voltage variations . 11
Table 4 – Generator specifications . 17
– 4 – IEC 61000-4-11:2020 RLV © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –
Part 4-11: Testing and measurement techniques –
Voltage dips, short interruptions and voltage variations immunity
tests for equipment with input current up to 16 A per phase
FOREWORD
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