Atec CEtest61k User Manual

Test systems for

-

compliance

-

Test61k

Harmonic test

(incl. 2 kHz to 9 kHz band)

and Flicker acc. to EN 61000-3

-

Test-Standby

Standby power consumption
test acc. to IEC/EN 62301

CE-Test en 09/2011-1

Requirements for the CE mark

Electrical installations, systems and devices which are to be marketed within the European Union (EU) must comply with the
European Union directives and regulations. The manufacturer resp. the importer is obliged to verify and mandatorily declare
this with the CE mark.

Amongst others, directives concerning electromagnetic compatibility and environmentally suitable designs of energy-using
products (e.g. the European Directive 2009/125/EC on ecodesign) have to be adhered and implemented.

Harmonics and flicker test

(pages 2-4)

The ZES ZIMMER compliance test system CE-Test61k allows
to test products interferences towards the power distribu­tion system caused by current harmonics in accordance
with EN 61000-3-2/-12 and flicker in accordance with
EN 61000-3-3/-11 (directive 2004/108/EU).

Additionally it is possible to measure and document pertur­bations of the public power system in the frequency range
from 2 kHz to 9 kHz according to EN 61000-4-7 annex B.

Stand-by power compliance test

(pages 6-7)

The ZES ZIMMER CE-Test-Standby system offers monitoring
the power consumption in standby mode of home appli­ances, IT devices and similar equipment. The system tests
conformity with the requirements of the EU directive on
ecodesign 2009/125/EU, in conjunction with regulation
1275/2008 and in accordance with IEC/EN 62301. The dif­ferent components of the system – the precision power mea­surement devices LMG95 and LMG500, current and voltage
sensors as well as power sources – can easily be integrated
into other test systems such as dedicated efficiency or con­sumption measurement in more general operations.

CE-compliance test system for
current harmonics and flicker

Standards concerning the electromagnetic compatibility of
a product classify the permissible degree of electromag­netic interference emission as well as immunity to it. Two
different types of electromagnetic interference emissions
that affect the public power system are considered: current
harmonics and flicker.

Even with a purely sinusoidal voltage, an electrical device
with a non-linear load characteristic creates current harmon­ics. Through the impedance of the mains, these harmonics
cause voltage drops and distort the line voltage. These
device generated harmonics are therefore the cause for a
reduced line voltage and quality of the AC power network.

In addition to that, certain devices such as stoves, instant
water heaters, etc. operate by switching the power repeatedly
on and off. These sudden load changes result in line voltage
variations perceived as fluctuations in the brightness of elec­tric illumination, technically-called flicker. This is as well an
undesired perturbation of the power network quality.

Measuring methods and limits for these low-frequency per­turbations on the mains caused by current harmonics and
flicker are specified in various standards. A product may
only bear the CE mark if conformity to these standards has
been verified and documented.

The standards distinguish between frequency ranges and
current ranges. The standards EN 61000-3-2 and -12 apply
to current harmonics up to the 40th order. The compliance
test regarding flicker is specified in the standards 61000-3-3
and -11 (see adjacent table). For example, standard EN
61000-3-2 for devices of a nominal current up to 16 A
defines the measuring and evaluation methods as well as
the limits for permissible current harmonics in the fre­quency range up to 2 (2.4) kHz. There are 4 different classes
(A, B, C, and D) for equipment under test that have different
limit values for current harmonics.

2

ZES ZIMMER provides the system CE-Test61k for compli-

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jX

A

R

A

jX

A

R

A

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R

A

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A

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A

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Power source Reference impedance

NI2415-3

Power analyzer LMG500-3 Equipment

under test

ance tests corresponding to standards EN 61000-3-2, -3,

-11 and -12. The precision power analyzers LMG95 and
LMG500 comply with the standards for measurement
devices EN 61000-4-7 for harmonic analyzers and standard
EN 61000-4-15 for flicker meters. For validating the con­firmation to the standards for current harmonics, the device
under test must be fed by a power source with a purely
sinusoidal and stable output voltage. This is essential in
order to proof that the measured current harmonics are
generated by the device under test and do not originate
from the source. Therefore the ZES ZIMMER LMG devices
test the voltage stability and that distortions by harmonics
are within permissible limits during each analysis interval.

Current Harmonics Flicker

In addition to a power source, the flicker test requires a
well-defined reference impedance. Flicker is determined
by the amplitude and occurrences of line voltage fluctua­tions. Voltage fluctuations are the result of current varia­tions induced by the consuming device at the reference
impedance. In order to obtain results which can be com­pared with others, a normalized line impedance must be
inserted between the feeding source and the test sample
when measuring flicker. The impedance values for these
reference impedances are defined as (0.24+j0.15) Ω in the
phases and (0.16+j0.10) Ω in the neutral. The test soft­ware allows to record all device settings and measured
data and to process them into a test protocol that is man­datory for the CE declaration.

Current range Frequency range Test standard

up to 16 A

16 A to 75 A

0 to 75 A

Standards for testing and measurement devices for line interferences caused by current harmonics, depending on current and frequency
range, and by flicker, depending on current range

Device class

Class A

up to 2 (2.4) kHz,

i.e. up to the 40th

harmonics at 50

(60) Hz

2 (2.4) to 9 kHz ---

Type of device

•

Symmetric three-phase devices

•

Home appliances, except devices that

belong to class D

•

Electrical tools, except portable

electrical tools

•

Dimmer for bulbs

•

Audio equipment

•

Devices that do not match classes B,

C or D

EN 61000-3-2

EN 61000-3-12 ---

Measurement device
standard for current
harmonics analyzers

EN 61000-4-7

EN 61000-4-7

Annex B

Test standard

EN 61000-3-3

EN 61000-3-11

Measurement

device standard

for flicker meter

EN 61000-4-15

Class B

Class C

Class D

Device classes according to EN61000-3-2

•

Portable electrical tools

•

Arc-welding equipment for private use

•

Lighting equipment

•

Devices of the following t ype of which the

power goes below or equals 600 W:

- PCs and monitors for PCs

- TV sets or radio receivers

Test set-up for measurements according to EN61000-3, 3-phase

3