Electromagnetic compatibility (EMC) - Part 4-17: Testing and measurement techniques - Ripple on d.c. input power port immunity test

Defines test methods for immunity to ripple at the d.c. input power port of electrical or electronic equipment. Applies to low-voltage d.c. power ports of equipment supplied by external rectifier systems, or batteries which are being charged. This standard defines
- test voltage waveform;
- range of test levels;
- test generator;
- test set-up;
- test procedure.
This consolidated version consists of the first edition (1999), its amendment 1 (2001) and its amendment 2 (2008). Therefore, no need to order amendments in addition to this publication.

Compatibilité électromagnétique (CEM) - Partie 4-17: Techniques d'essai et de mesure - Essai d'immunité à l'ondulation résiduelle sur entrée de puissance à courant continu

Définit les méthodes d'essai d'immunité aux ondulations résiduelles appliquées à l'entrée de l'alimentation en courant continu des matériels électriques ou électroniques. S'applique aux entrées de puissance en courant continu basse tension des matériels alimentés par des systèmes redresseurs externes ou par des batteries qui sont en charge. Cette norme définit - la forme d'onde de la tension d'essai; - une gamme de niveaux d'essai; - le générateur d'essai; - l'installation d'essai; - la procédure d'essai.  Cette version consolidée comprend la première édition (1999), son amendement 1 (2001) et son amendement 2 (2008). Il n'est donc pas nécessaire de commander les amendements avec cette publication.

General Information

Status
Published
Publication Date
27-Jan-2009
Current Stage
PPUB - Publication issued
Start Date
28-Jan-2009
Completion Date
28-Jan-2009
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IEC 61000-4-17:1999+AMD1:2001+AMD2:2008 CSV - Electromagnetic compatibility (EMC) - Part 4-17: Testing and measurement techniques - Ripple on d.c. input power port immunity test
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IEC 61000-4-17
®
Edition 1.2 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
Electromagnetic compatibility (EMC) –
Part 4-17: Testing and measurement techniques – Ripple on d.c. input power
port immunity test

Compatibilité électromagnétique (CEM) –
Partie 4-17: Techniques d’essai et de mesure – Essai d’immunité à l’ondulation
résiduelle sur entrée de puissance à courant continu
IEC 61000-4-17:1999+A1:2001+A2:2008

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61000-4-17
®
Edition 1.2 2009-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
Electromagnetic compatibility (EMC) –
Part 4-17: Testing and measurement techniques – Ripple on d.c. input power
port immunity test

Compatibilité électromagnétique (CEM) –
Partie 4-17: Techniques d’essai et de mesure – Essai d’immunité à l’ondulation
résiduelle sur entrée de puissance à courant continu

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CF
CODE PRIX
ICS 33.100.20 ISBN 978-2-88910-385-0
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 3 ----------------------
– 2 – 61000-4-17 © IEC:1999+A1:2001
+A2:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5

1 Scope.6
2 Normative references.7
3 General.7
4 Definitions.7
5 Test levels and waveform .8
6 Test generator.9
6.1 Characteristics and performance of the generator .9
6.2 Verification of the characteristics of the generator .9
7 Test set-up.10
8 Test procedure.10
8.1 Laboratory reference conditions .10
8.1.1 Climatic conditions.10
8.1.2 Electromagnetic conditions .10
8.2 Execution of the test .10
9 Evaluation of test results.11
10 Test report.12

14
Annex A (informative) Information on the phenomenon .

Figure 1 – Examples of ripple voltage waveforms .13
Figure A.1 – Example of generator based on a rectifier system .15
Figure A.2 – Example of generator based on programmable instrumentation .15

Table 1 – Test levels .8

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61000-4-17 © IEC:1999+A1:2001 – 3 –
+A2:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 4-17: Testing and measurement techniques –
Ripple on d.c. input power port immunity test



FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61000-4-17 has been prepared by subcommittee 77A: Low-
frequency phenomena, of IEC technical committee 77: Electromagnetic compatibility.
It forms part 4-17 of IEC 61000. It has the status of a basic EMC publication in accordance with
IEC Guide 107.
This consolidated version of IEC 61000-4-17 consists of the first edition (1999) [documents
77A/271/FDIS and 77A/280/RVD], its amendment 1 (2001) [documents 77B/291+293/FDIS and
77B/298+300/RVD] and its amendment 2 (2008) [documents 77A/632/CDV and 77A/652/RVC].
The technical content is therefore identical to the base edition and its amendments and has
been prepared for user convenience.
It bears the edition number 1.2.

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– 4 – 61000-4-17 © IEC:1999+A1:2001
+A2:2008
A vertical line in the margin shows where the base publication has been modified by
amendments 1 and 2.
Annex A is for information only.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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61000-4-17 © IEC:1999+A1:2001 – 5 –
+A2:2008
INTRODUCTION

This standard is part of the IEC 61000 series, according to the following structure:
Part 1: General
General considerations (introduction, fundamental principles)
Definitions, terminology
Part 2: Environment
Description of the environment
Classification of the environment
Compatibility levels
Part 3: Limits
Emission limits
Immunity limits (in so far as they do not fall under the responsibility of the product committees)
Part 4: Testing and measurement techniques
Measurement techniques
Testing techniques
Part 5: Installation and mitigation guidelines
Installation guidelines
Mitigation methods and devices
Part 6: Generic standards
Part 9: Miscellaneous
Each part is further subdivided into several parts, published either as International Standards
or technical reports, some of which have already been published as sections. Others will be
published with the part number followed by a dash and a second number identifying the
subdivision.
This part is an International Standard which gives test procedures related to ripple on d.c. input
power port.

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+A2:2008
ELECTROMAGNETIC COMPATIBILITY (EMC) –

Part 4-17: Testing and measurement techniques –
Ripple on d.c. input power port immunity test



1 Scope
This part of IEC 61000 defines test methods for immunity to ripple at the d.c. input power port
of electrical or electronic equipment.
This standard is applicable to low-voltage d.c. power ports of equipment supplied by external
rectifier systems, or batteries which are being charged.
The object of this standard is to establish a common and reproducible basis for testing, in a
laboratory, electrical and electronic equipment when subjected to ripple voltages such as those
generated by rectifier systems and/or auxiliary service battery chargers overlaying on d.c.
power supply sources.
This standard defines
– test voltage waveform;
– range of test levels;
– test generator;
– test set-up;
– test procedure.
The test described hereafter applies to electrical or electronic equipment and systems. It also
applies to modules or subsystems whenever the equipment under test (EUT) rated power is
greater than the test generator capacity specified in clause 6.
This test does not apply to equipment connected to battery charger systems incorporating
switch mode converters.
This standard does not specify the tests to be applied to particular apparatus or systems. Its
main aim is to give a general basic reference to IEC product committees. These product
committees (or users or manufacturers of equipment) remain responsible for the appropriate
choice of the test and the severity level to be applied to their equipment.
Dedicated test procedures are in use for testing specific categories of electrical or electronic
equipment, e.g. equipment connected to d.c. supply network of telephone switching centres;
the related product committees should evaluate the relevance and applicability of the test
procedure specified in this basic standard.

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61000-4-17 © IEC:1999+A1:2001 – 7 –
+A2:2008
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of
the referenced document (including any amendments) applies.
IEC 60050(161), International Electrotechnical Vocabulary (IEV) – Chapter 161:
Electromagnetic compatibility
IEC 60068-1, Environmental testing – Part 1: General and guidance

3 General
Ripple may influence the reliable operation of equipment and systems, powered by d.c.
supplies, installed in industrial plants as well in residential and commercial installations.
The ripple disturbance is represented by the voltage derived from a pulsating quantity from
which the direct component has been removed.
The main sources of ripple disturbance are rectifier systems used in the external d.c. power
networks and battery chargers.
Ripple is therefore a phenomenon continuously present in this type of d.c. power source, and
may be accentuated when the battery is recharging after a recovery of the a.c. power line
service.
Ripple components may also be produced by equipment absorbing a pulsating current; this is
not covered in this standard.
4 Definitions
For the purpose of this part of IEC 61000 the following definitions apply, together with the
definitions of IEC 60050(161) [IEV].
4.1
ripple content, alternating component
quantity derived by removing the direct component from a pulsating quantity (see figure 1),
[IEV 161-02-25]
4.2
EUT
equipment under test

---------------------- Page: 9 ----------------------
– 8 – 61000-4-17 © IEC:1999+A1:2001
+A2:2008
5 Test levels and waveform
The preferred range of test levels, applicable to the d.c. power supply port of the equipment,
are given in table 1.
Table 1 – Test levels
Level Percentage
of the nominal d.c. voltage
1 2
2 5
3 10
4 15
x x
NOTE  "x" is an open level. This level can be given in the
product specification. For the duration of the test, see 8.2.
The test levels are a peak-to-peak voltage expressed as a percentage of the nominal d.c.
voltage U .
d.c
The amplitude of the ripple voltage is represented in figure 1 by the difference U – U .
max min
The frequency of the ripple is the power frequency or its multiple 2, 3 or 6, as specified by a
product committee or according to the EUT manufacturer’s specifications or according to the
characteristics of the rectifier system (see also clause A.2).
The waveform of the ripple voltage, at the output of the test generator, has a sinusoid-linear
character.
A sinusoidal-linear characteristic can be described as a part of a sine wave and a line, tangent
to the decreasing side of the rectified wave, that intersects the rising edge of the following half-
wave; the voltage difference between the peak value of the sine wave and the point of
intersection to the following half-wave is the ripple voltage (see figure 1). The decreasing
voltage can be assumed as a linear function in the presence of constant current loads. The
voltage deviation, in the case of a constant resistor or constant power load, is very small and
can be considered acceptable for the purpose of the test.
Deviations from the defined waveform, due to the impedance of the EUT, are allowed during
the test. However, care should be taken in order to assess that the deviation from the original
waveform is not caused by limitation of the generator. Furthermore, the peak-to-peak value and
the frequency of ripple shall be maintained by adjustment in order to maintain the severity of
the test.
The graphical representation of the waveform obtained from a single-phase bridge and a three-
phase bridge rectifier is shown in figure 1; the difference U – U is the percentage of the
max min
nominal d.c. voltage and corresponds to the selected test level.
NOTE  Information on the phenomenon and on the selection of the test level is given in annex A, clauses A.1
and A.2.

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61000-4-17 © IEC:1999+A1:2001 – 9 –
+A2:2008
6 Test generator
6.1 Characteristics and performance of the generator
The test generator shall be able to operate in continuous mode with the following main
specifications:
– output voltage range: up to 360 V;
– output voltage change with load: less than 5 %;
(0 to rated current)
– output voltage waveform: alternating component at power frequency or its
multiple, with a sinusoid-linear character,
superimposed on the d.c. voltage
– output voltage tolerance: ±10 %
– output current (steady state): up to 25 A;
– peak output current capability: +2,5/–0,5 times the steady-state current;
(maximum allowable duration 5 ms)
– ripple frequency tolerance: ±1 %.
NOTE  The 360 V output voltage value covers the test condition of a 300 V d.c. supply voltage plus a 15 % ripple
corresponding to test level 4.
The use of a generator with higher or lower voltage/current capability is allowed provided that
the other specifications (waveform, change with load, peak output current/steady-state current
ratio, etc.) are preserved. The test generator output power/current capability shall be at least
20 % greater than the EUT power/current ratings.
The generator must be able to produce positive and negative peak current with positive voltage
output.
Examples of generators can be found in clause A.3.
Figure A.1 shows a schematic diagram of a generator based on a rectifier system; figure A.2
shows a schematic diagram of a generator based on a programmable power supply with
controller.
6.2 Verification of the characteristics of the generator
In order to compare the test results the following characteristics of the generator shall be
verified:
– the sinusoid-linear character of the ripple signal shall be maintained at maximum output
voltage, with the output connected to a resistive load of 60 Ω;
– the sinusoid-linear character of the ripple signal shall be maintained at maximum current
(25 A), with the output connected to a resistive load (e.g. 2,4 Ω at output voltage of 60 V);
– the ripple frequency;
– the peak output current shall meet the requirements of 6.1, when switching the generator
output from 0 V to 60 V and driving an uncharged capacitor whose value is at least
1 700 μF.
The verification of a generator with voltage/current capability less than specified in 6.1 shall be
made with load conditions reflecting the rated voltage and current.
The measurement uncertainty of the instrumentation (e.g. low-frequency oscilloscope, d.c.
voltmeter and a.c. peak-to-peak voltmeter) shall be less than or equal to 2 %.

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– 10 – 61000-4-17 © IEC:1999+A1:2001
+A2:2008
7 Test set-up
The test shall be performed with the EUT connected to the test generator with the shortest
power supply cable as specified by the manufacturer. If no cable length is specified, it shall be
the shortest practical length suitable for the connection of the EUT.
8 Test procedure
The test procedure shall include the following:
– verification of the laboratory reference conditions;
– preliminary verification of the correct operation of the equipment;
– execution of the test;
– evaluation of the test results.
8.1 Laboratory reference conditions
In order to minimize the impact of environmental parameters on test results, the tests shall be
performed in climatic and electromagnetic reference conditions as specified in 8.1.1 and 8.1.2.
8.1.1 Climatic conditions
Unless otherwise specified by the committee responsible for the generic or product standard,
the climatic conditions in the laboratory shall be within any limits specified for the operation of
the EUT and the test equipment by their respective manufacturers.
Tests shall not be performed if the relative humidity is so high as to cause condensation on the
EUT or the test equipment.
NOTE Where it is considered that there is sufficient evidence to demonstrate that the effects of the phenomenon
covered by this standard are influenced by climatic conditions, this should be brought to the attention of the
committee responsible for this standard.
8.1.2 Electromagnetic conditions
The electromagnetic conditions of the laboratory shall be such as to guarantee the correct
operation of the EUT in order not to influence the test results.
8.2 Execution of the test
The EUT shall be configured for its normal operating conditions. The test shall be performed
according to a test plan that shall specify:
– test level;
– duration of the test;
– representative operating conditions of the EUT;
– auxiliary equipment.
The power supply, signal and other functional electrical quantities shall be applied within their
rated range. Signal and other functional electrical quantities may be simulated.

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61000-4-17 © IEC:1999+A1:2001 – 11 –
+A2:2008
It is recommended that a preliminary verification of the EUT's performance be made on the
complete test set-up before applying the test voltage.
The test voltage, corresponding to the selected level, shall be applied to the d.c. port of the
EUT; the values of the d.c. voltage and the ripple content (peak to peak) shall be measured at
the terminals of the EUT and adjusted in order to maintain the selected test level. The
measurement uncertainty of the instrumentation shall be better than 2 %.
The average value U of the waveform resulting from the d.c. voltage with the superimposed
d.c. ,
ripple content, shall numerically be equal to the rated voltage of the EUT (see figure 1).
The test shall then be repeated with U at the lower value of the voltage range.
d.c.
Additional test voltages (e.g. the higher value of the voltage range) may be defined by product
committees.
NOTE  The test at the lower value of the voltage range generally covers the most severe conditions.
The test voltage shall be applied for at least 10 min or for the period of time necessary to allow
a complete verification of the EUT's operating performance.
The waveform of the ripple voltage shall be recorded and included in the test report.
9 Evaluation of test results
The test results shall be classified in terms of the loss of function or degradation of
performance of the equipment under test, relative to a performance level defined by its
manufacturer or the requestor of the test, or agreed between the manufacturer and the
purchaser of the product. The recommended classification is as follows:
a) normal performance within limits specified by the manufacturer, requestor or purchaser;
b) temporary loss of function or degradation of performance which ceases after the
disturbance ceases, and from which the equipment under test recovers its normal
performance, without operator intervention;
c) temporary loss of function or degradation of performance, the correction of which requires
operator intervention;
d) loss of function or degradation of performance which is not recoverable, owing to damage
to hardware or software, or loss of data.
The manufacturer’s specification may define effects on the EUT which may be considered
insignificant, and therefore acceptable.
This classification may be used as a guide in formulating performance criteria, by committees
responsible for generic, product and product-family standards, or as a framework for the
agreement on performance criteria between the manufacturer and the purchaser, for example
where no suitable generic, product or product-family standard exists.

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+A2:2008
10 Test report
The test report shall contain all the information necessary to reproduce the test. In particular,
the following shall be recorded:
– the items specified in the test plan required by clause 8 of this standard;
– identification of the EUT and any associated equipment, for example, brand name, product
type, serial number;
– identification of the test equipment, for example, brand name, product type, serial number;
– any special environmental conditions in which the test was performed, for example, shielded
enclosure;
– any specific conditions necessary to enable the test to be performed;
– performance level defined by the manufacturer, requestor or purchaser;
– performance criterion specified in the generic, product or product-family standard;
– any effects on the EUT observed during or after the application of the test disturbance, and
the duration for which these effects persist;
– the rationale for the pass/fail decision (based on the performance criterion specified in the
generic, product or product-family standard, or agreed between the manufacturer and the
purchaser);
– any specific conditions of use, for example cable length or type, shielding or grounding, or
EUT operating conditions, which are required to achieve compliance.

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61000-4-17 © IEC:1999+A1:2001 – 13 –
+A2:2008
U
U
max
...

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