IEC 61000-4-34:2005/AMD1:2009
(Amendment)Amendment 1 - Electromagnetic compatibility (EMC) - Part 4-34: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipmentwith mains current more than 16 A per phase
Amendment 1 - Electromagnetic compatibility (EMC) - Part 4-34: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests for equipmentwith mains current more than 16 A per phase
The contents of the corrigendum of October 2009 have been included in this copy.
Amendement 1 - Compatibilité électromagnétique (CEM) - Partie 4-34: Techniques d'essai et de mesure - Essais d'immunité aux creux de tension, coupures brèves et variations de tension pour matériel ayant un courant d'alimentation de plus de 16 A par phase
Le contenu du corrigendum d'octobre 2009 a été pris en considération dans cet exemplaire.
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IEC 61000-4-34 ®
Edition 1.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
AMENDMENT 1
AMENDEMENT 1
Electromagnetic compatibility (EMC) –
Part 4-34: Testing and measurement techniques – Voltage dips, short
interruptions and voltage variations immunity tests for equipment with mains
current more than 16 A per phase
Compatibilité électromagnétique (CEM) –
Partie 4-34: Techniques d'essai et de mesure – Essais d'immunité aux creux de
tension, coupures brèves et variations de tension pour matériel ayant un
courant d’alimentation de plus de 16 A par phase
IEC 61000-4-34:2005/A1:2009
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IEC 61000-4-34 ®
Edition 1.0 2009-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
BASIC EMC PUBLICATION
PUBLICATION FONDAMENTALE EN CEM
AMENDMENT 1
AMENDEMENT 1
Electromagnetic compatibility (EMC) –
Part 4-34: Testing and measurement techniques – Voltage dips, short
interruptions and voltage variations immunity tests for equipment with mains
current more than 16 A per phase
Compatibilité électromagnétique (CEM) –
Partie 4-34: Techniques d'essai et de mesure – Essais d'immunité aux creux de
tension, coupures brèves et variations de tension pour matériel ayant un
courant d’alimentation de plus de 16 A par phase
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
J
CODE PRIX
ICS 33.100.20 ISBN 978-2-88910-392-8
– 2 – 61000-4-34 Amend. 1 © IEC:2009
FOREWORD
This amendment has been prepared by subcommittee 77A: Low frequency phenomena, of
IEC technical committee 77: Electromagnetic compatibility.
The text of this amendment is based on the following documents:
Enquiry draft Report on voting
77A/670/CDV 77A/688/RVC
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication 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.
The contents of the corrigendum of October 2009 have been included in this copy.
_____________
Main title
Replace the part title on the cover page, the title page, above the Foreword and the Scope by
the following:
Part 4-34: Testing and measurement techniques –
Voltage dips, short interruptions and voltage variations immunity tests
for equipment with mains current more than 16 A per phase
1 Scope
Replace the entire second paragraph of the scope by the following:
This standard applies to electrical and electronic equipment having a rated mains current
exceeding 16 A per phase. (See Annex E for guidance on electrical and electronic equipment
rated at more than 200 A per phase.) It covers equipment installed in residential areas as well
as industrial machinery, specifically voltage dips and short interruptions for equipment
connected to either 50 Hz or 60 Hz a.c. networks, including 1-phase and 3-phase mains.
NOTE 1 Equipment with a rated mains current of 16 A or less per phase is covered by publication IEC 61000-4-11.
NOTE 2 There is no upper limit on rated mains current in this publication. However, in some countries, the rated
mains current may be limited to some upper value, for example 75 A or 250 A, because of mandatory safety
standards.
3.6 rated input voltage
Delete this term and definition and renumber the following terms and definitions accordingly.
61000-4-34 Amend. 1 © IEC:2009 – 3 –
5 Test levels
Modify the first sentence as follows:
The voltages in this standard use the rated voltage for the equipment as a basis for voltage
test level specification (U ).
T
5.1 Voltage dips and short interruptions
Delete the last two paragraphs before Table 1, beginning with “Shorter durations in the
table…”, and ending with “…after the voltage dip.”
Table 1 – Preferred test level and durations for voltage dips
Replace the existing Table 1 by the following new Table 1:
a
Test level and durations for voltage dips (t ) (50 Hz/60 Hz)
Classes
s
Class 1 Case-by-case according to the equipment requirements
70 % during
Class 2 0 % during 1 cycle
c
25/30 cycles
d
70 % during 80 % during
40 % during
Class 3 0 % during 1 cycle
c c
c
25/30 cycles 250/300 cycles
10/12 cycles
b
X X X X
Class X
a
Classes as per IEC 61000-2-4; see Annex B.
b
To be defined by product committee. For equipment connected directly or indirectly to public network, the levels
must not be less severe than class 2.
c
"25/30 cycles" means "25 cycles for 50 Hz test" and "30 cycles for 60 Hz test", “10/12 cycles” means “10 cycles
for 50 Hz test” and “12 cycles for 60 Hz test” and “250/300 cycles” means “250 cycles for 50 Hz test” and “300
cycles for 60 Hz test”.
d
May be replaced by product committee with a test level of 50 % for equipment that is intended primarily for
200 V or 208 V nominal operation.
5.2 Voltage variations (optional)
Add the following paragraph immediately below Table 3:
For voltage variations in three-phase systems with or without neutral, all the three phases
shall be tested simultaneously. Simultaneous voltage variations in three-phase systems are
positioned at the zero-crossing of one of the voltages.
– 4 – 61000-4-34 Amend. 1 © IEC:2009
Table 4 – Generator specifications
Replace the existing Table 4 by the following new Table 4:
Output voltage at no load
As required in Table 1, ±5 % of residual voltage value
Voltage at the output of the generator during equipment As required in Table 1, ±10 % of residual voltage value,
test measured as r.m.s. value refreshed each ½ cycle per
IEC 61000-4-30
Output current capability See Annex A
Peak inrush current capability (no requirement for See Annex A
voltage variation tests)
Instantaneous peak overshoot/undershoot of the Less than 5 % of U
T
actual voltage, generator loaded with resistive load –
see NOTE 1
Voltage rise (and fall) time t (and t ), during abrupt
Between 1 μs and 5 μs for current ≤75 A
r f
change, generator loaded with resistive load – see
Between 1 μs and 50 μs for current >75 A
NOTE A and NOTE 1
Phase angle at which the voltage dip begins and ends 0° to 360° with a maximum resolution of 5°, see
NOTE B
Phase relationship of voltage dips and interruptions Less than ±5°
with the power frequency
Zero crossing control of the generators
±10°
NOTE A These values must be checked with a resistive load as per NOTE 1 after this table, but they need not
be checked when an EUT is connected.
NOTE B Phase angle adjustment may be required to comply with 5.1.
6.1.1 Characteristics and performance of the generator
Replace the last sentence before NOTE 1 by the following:
For generating interruptions, a high impedance open circuit is permitted.
8.2.1 Voltage dips and short interruptions
Delete, in the second paragraph, “except for ½ cycle test which shall occur at 90°”
Delete the entire NOTE after the second paragraph.
Replace the last sentence of the sixth paragraph by the following:
See Figure 3a, Figure 3b and Figure 3c.
Replace the last sentence of the seventh paragraph by the following:
See Figure 3b and Figure 3c.
Annex A – Test generator peak inrush current drive capability
Replace the title of Annex A as follows:
61000-4-34 Amend. 1 © IEC:2009 – 5 –
Annex A
(normative)
Test generator current drive capability
Add the following new paragraph as the second paragraph of Annex A:
During voltage dip testing on polyphase loads, the current on non-dipped phases may
increase to as much as 200 % of the rated current, for the duration of the dip.
Replace the existing second paragraph (now third paragraph) by the following:
Current capablility at the output of a test generator may be a function of both the test
generator and of the a.c. mains source that supplies power to the test generator.
Add, after Figure A.1, the following new Clause to Annex A:
A.3 Test generator requirement during dip current
During dip tests on polyphase loads, the test generator shall be capable of supplying
sufficient current on the non-dipped phase conductors, during the dip, to maintain the
voltages required in Table 1, ±10 %, measured as r.m.s. value (average time 1 cycle)
refreshed each ½ cycle as per IEC 61000-4-30.
NOTE During the dip, the current on the non-dipped phase conductors may be as much as 200 % of the rated
current.
Figure C.1 – Phase-to-neutral dip vectors
Replace the existing Figure C.1 by the following:
⎛ ⎞
o
sin(120 )
⎜ ⎟
−1
α = sin (C.1)
⎜ ⎟
2 o
⎜ ⎟
1+P − 2Pcos(120 )
⎝ ⎠
2 o
1+P − 2Pcos(120 )
U = (C.2)
L1−L2
P is the percent phase-to-neutral dip, expressed as a
fraction of the nominal phase-to-neutral voltage.
U is the voltage from L1 to L2, expressed as a
L1-L2
fraction of the nominal phase-to-phase voltage.
IEC 2166/09
–1
NOTE The sin function is ambiguous (there are always two
angles that have the same value), and return values between –90°
and +90°, so the correct quadrant must be selected.
– 6 – 61000-4-34 Amend. 1 © IEC:2009
Figure C.2 – Acceptable Method 1 – phase-to-phase dip vectors
Replace the existing Figure C.2 by the following:
2 o
U = 1+ 3P − (2 3 )Pcos(30 ) (C.3)
L1−N
o
⎛ ⎞
P 3 sin(30 )
o −1
⎜ ⎟
α = 120 − sin (C.4)
⎜ ⎟
U
L1−N
⎝ ⎠
2 o
1+ (U ) − 2U cos(α + 120 )
L1−N L1−N
U = (C.5)
L3−L1
o
⎛ ⎞
U sin(α + 120 )
o −1 L1−N
⎜ ⎟
θ = 60 − sin (C.6)
⎜ ⎟
3U
L3−L1
⎝ ⎠
P is the percent phase-to-phase dip, expressed as a
IEC 2167/09
fraction of the nominal phase-to-phase voltage.
U is the voltage from L1 to Neutral (if a Neutral
L1-N
conductor exists), expressed as a fraction of the
nominal phase-to-neutral voltage.
U is the voltage from L3 to L1, expressed as a
L3-L1
fraction of the nominal phase-to-pha
...
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