Teseq CDN 3083-S200M User manual

1
MANUAL HIGH-CURRENT
COUPLING/DECOUPLING
NETWORK CDN 3083-S200M
USER MANUAL 691-379C

Manual high-current coupling network CDN 3083–S200M
MANUAL HIGH-CURRENT
COUPLING/DECOUPLING
NETWORK CDN 3083-S200M
USER MANUAL

1 Explanation of the symbols used in this manual 5
2. Safety advice 7
2.1 Safety measures 8
2.2 Installation 8
2.3 Installation of an equipment under test power switch 10
2.3.1 Applicable safety standards 10
2.3.2 Leakage current 11
3. Applications 12
4 Assembling of test rig and the CDN sub-units 15
4.1 Installation of a test rig 16
4.2 Preparation of the CDN 3083-S200M 17
4.2.1 Mounting of the common earth bars 17
4.2.2 Mounting positioning plates 18
4.2.3 Assembly for IEC coupling 20
4.2.4 Assembly for extended IEC coupling 21
4.3 EUT connections 22
4.3.1 EUT power feed 22
4.4 Test conditions 23
5 Coupling modes overview 24
5.1 Phase synchronisation 24
5.2 IEC coupling modes 25
5.3 Extended IEC coupling mode 28
CDN 3083 IEC Coupling Line to Ground 29
CDN 3083 IEC Coupling Line to Line 30
CDN 3083 ANSI Coupling 31
6 Effects on the EUT 32
7 Maintenance 33
8 Technical specications CDN 3083-S200M 34
9 Warranty 37
10 Addresses 39
CONTENTS

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Please take note of the following explanations of the symbols used in order
to achieve the optimum benet from this manual and to ensure safety during
operation of the equipment.
The following symbol draws your attention to a circumstance where non-
observation of the warning could lead to inconvenience or impairment in the
performance.
Example:
1 EXPLANATION OF THE SYMBOLS
USED IN THIS MANUAL
This connection must not be confused with the EUT
power input.
The following symbol draws your attention to a circumstance where non-
observation of the warning could lead to component damage or danger to the
operating personnel.
Example:
Never connect or disconnect the EUT while the test
system is performing a test.
Never connect or disconnect the coupling path while the
test system is performing a test.

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Manual high-current coupling network CDN 3083–S200M
2 SAFETY ADVICE
Improper or careless handling can be fatal! The instru-
ment must only be used by trained personnel.
These operating instructions form an integral part of the equipment and must
be studied carefully before putting the device into use. It needs to be available
to the operating personnel at all times. All the safety instructions and advice
notes are to be observed.
Keeping responsibility to the instructions and recommendations that follow is
imperative.
The safety advice referring to the generators also applies and must be followed
when using the instruments together with the CDN 3083-S200M.
Neither Teseq AG, Switzerland nor any of the associated sales organizations
accept any responsibility for personal injury or for material or consequential
damage that may results through irresponsible or negligent operation of this
equipment.
When used with generator NSG 3060 and for EUT voltage
> 440 Vrms do not set pulse repetition rate <20 seconds.
The NSG 3060 may be damaged if this is not respected.

7 Lethal danger from high voltages and the risk of radiating
illegal electromagnetic interference.
The CDN 3083-S200M may only be installed and used by
authorised and trained EMC specialists (electrical engi-
neers).
The CDN 3083-S200M must only be used for EMC tests
as set down in these operating instructions.
Personnel tted with a heart pacemaker must not
operate the instrument and must not be in the vicinity
of the test rig while it is in operation.
Lethal danger from high voltages and the risk of high
levels of electromagnetic radiation being generated.
When the system is used in conjunction with options,
accessories or other equipment the safety instructions
concerning those devices must also be observed.

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Manual high-current coupling network CDN 3083–S200M
2.1. Safety measures
Persons tted with a heart pacemaker must not operate the instrument and
should not be in the vicinity of the test rig when pulses are generated.
The test rig must provide adequate insulation protection for up to 5 kV surge.
Particular care should be given to the connections between the CDN 3083-
S200M and the equipment under test (EUT).
The EUT may only be tested when placed inside a suitable protective enclosure
which should provide protection against ying fragments, re and electric shock.
The pulse voltage must not be able to nd its way to unearthed metal objects
in the event of the EUT failing.
Only use the instrument in a dry room.
Never leave the instrument unattended when the EUT is switched on.
Regularly check the heat of the CDN using the built in thermometer and switch
EUT off if the temperature exceeds 70°C.
Do not open the instrument. Repairs and adjustments must only be carried out
by qualied maintenance personnel.
Do not continue to use the CDN in case of any mechanical damage occur. The
CDNs housing and the cables have both insulating and screening function,
which can only be assured while the housing is intact. Return the damaged
CDN to a Teseq service centre immediately for repair.
2.2 Installation
The test system conforms to protection class 1. Local installation regulations
must be respected to ensure the safe ow of leakage currents.

9Operation without a protective earth connection is for-
bidden! Therefore it is imperative to screw both earth
copper rails to the CDN.
Switch off EUT power before accessing EUT power «in»
or «out» terminals. Use the insulated allen key always
when working on the terminals.
Two independent protective earth connections are necessary (for the test
system and the EUT). These must be connected back to the local permanent
installation or to a xed, permanent protective earth conductor.
Operate the equipment only in dry surroundings. Any condensation that occurs
must be allowed to evaporate before putting the equipment into operation. Do
not exceed the permissible ambient temperature or humidity levels. Use only
ofcially approved connectors and accessory items.
It is recommended to connect the CDN 3083-S200M
through a properly rated power switch device, which
should be located close to the test setup. In order to
ensure an easy and quick acces to the EUT power, same
should be clearly and visibly labelled as a device for «EUT
power on/off» switching.
The inhouse power distribution needs to be equipped
with a proper circuit breaker and an emergency off
button as per IEC/EN 61010-1.

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Manual high-current coupling network CDN 3083–S200M
2.3 Installation of an equipment under test power switch
It is recommended to connect the CDN through a properly rated power switch
device, which should be located close to the test setup. In order to ensure an
easy and quick access to the equipment under test (EUT) power, same should
be clearly and visibly labelled as a device for «EUT power on/off» switching.
The in-house power distribution needs to be equipped with a proper circuit
breaker and an emergency off button as per IEC/EN 61010-1.
The test setup should only be accessible to trained
personal.
Dimensioning of mains supply and rating of fuse protection of AC or DC power
supply must conform with national prescriptions and EUT requirements.
Inappropriate arrangement, mounting, cabling or handling of the device under
test or the protective elements can make the protective features that are incor-
porated in the concept of the instrument worthless.
2.3.1 Applicable safety standards
Development and manufacture is in compliance with ISO 9001.
The instrument complies with the safety requirements of IEC/EN 61010-1 (safety
requirements of electrical equipment for measurement, control and laboratory
use).
The interference immunity has been tested in accordance with EN 61326-1.
It is the user’s responsibility to ensure that the test rig does not emit exces-
sive electromagnetic interference (EMI) that might affect other items. The test
system itself does not produce any excessive radiation; however, the injection
of interference pulses into the EUT can result in the device and/or its associated
cables starting to radiate EMI. To avoid radiating unwanted interference into
the environment, the standards organisations recommend that the test rig be
operated in a Faraday cage.

112.3.2 Leakage current
CDN 3083-S200M generates high leakage currents to ground, by specication.
Therefore the EUT power supply connection needs to be free of differential
circuit breaker protection.
Local installation regulations must be respected to ensure the safe ow of
leakage currents.
Always rst connect the PE wire to CDN 3083-S200M.
Use only nationally approved connectors and accessory items.
Ensure that a reliable return path for the interference current is provided
between the EUT and the coupling/decoupling network.

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Manual high-current coupling network CDN 3083–S200M
3 APPLICATIONS
The manual coupling network CDN 3083-S200M fullls the requirements called
for in the surge standard IEC/EN 61000-4-5, including the new features concern-
ing high currents.
The form factor perfectly suits the demands placed on the instrument in its
working environment. In its basic form, the coupler is made for use on a oor
or for table top placement in an EMC laboratory or in a development workshop.
It can be even mounted onto the wall to have free space on the test bench.
High-current couplers may need to be taken to test sites where it is commonly
impossible to move large installations in. For convenience, the CDN 3083-S200M
can be disassembled in handy parts and can be easily moved to other places.
Injecting surge pulses into power connections always involves a careful weigh-
ing up of partially conicting requirements. On the one hand the power network
has to be protected from the interference signals while the effects of the pulses
are concentrated on the equipment under test, yet on the other hand the back
lter must not result in any signicant voltage drop.
In order to keep voltage losses within reasonable limits at increasing current
levels, there are ve different classes of lter inductances dened in IEC 61000-
4-5 Ed. 3, up to 16 A, 16 to 32 A, 32 to 63 A, 63 to 125 A and 125 to 200 A including
specic tolerances for the pulse duration and the peak voltages for each class.
The CDN 3083-S200M conforms to the tolerances of the 125 to 200 A class.
The back lter inductance has been selected to be 0.2 mH.

13 The nominal maximum current rating of 200 A per phase can, during short
test periods, be considerably exceeded. The unit will tolerate the frequently
encountered inrush currents without complaint and, in extreme cases it can be
overstressed until the internal environment has reached the max. temperature
of 70°C.
CDN 3083-S200M is delivered with external fans mounted. Supply cables for the
fans are part of the delivery. It is recommended to turn on the fans when the
CDN 3083-S200M is used in the upper load range (Example: EUT current >100
A), or when environmental temperature is high (>30° C).
Figure 1

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Manual high-current coupling network CDN 3083–S200M
The coupling network CDN 3083-S200M serves to inject the following standard-
ized surge pulses from the surge generator into the mains supply to the device
under test:
Voltage surge of up to 6 kV which follows the 1.2/50 µs curve (open-circuit)
Current surge of up to 3 kA which follows the 8/20 µs curve (short circuit
conditions)
The CDN 3083-S200M is designed to be used with an EUT supply of up to 620
Vrms line to line and 400 Vrms line to ground at 200 A.
Coupling surge pulses with higher voltages (up to 8 kV) is in principle possible,
but in case the EUT draws low currents the backlter chokes may go in satura-
tion due to the higher surge kickback currents and provide no more a good
backltering performance.
Operation is manual, simple and designed to be safe.
The CDN 3083-S200M is tested for safety in compliance with IEC 61010. The
rugged connection terminals together with the solid earth line assure a proper
connection, this in combination with a rugged housing.
Figure 2: EUT power supply connector

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4 ASSEMBLING OF TEST RIG AND THE
CDN SUB-UNITS
The CDN 3083-S200M contains following parts:
1 Surge decoupling network CDN 3083-S200 N – L1
1 Surge decoupling network CDN 3083-S200 L2 – L3
2 Earth rails
1 Allen key, isolated
1 User manual CDN 3083-S200M
2 Coupling conguration sheets
1 Traceable calibration certicate
Screw set
8 wheels with brakes
Accessories:
IEC coupling set
1 INA 3080 Surge coupling unit
Extended IEC coupling set
2 INA 3080 Surge coupling unit
1 Connection cable 0.5 m Fischer/Fischer connector

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Manual high-current coupling network CDN 3083–S200M
4.1 Installation of a test rig
This section describes the check-up and installation of the CDN 3083-S200M
coupling network after delivery and provides a checklist on the functions of
the unit after being transported or after signicant changes of the test rig were
performed.
Installation should only be carried out by qualied personnel.
a) Check the delivery for completeness.
b) Check the unit for any signs of transportation damage. Report any damage
found to the carrier immediately.
c) Study the manual.
d) Set up the surge generator in accordance with the instructions in its manual
but do not, however, switch the instrument on.
e) For convenience, place the coupling network close to the generator.
f) Connect the protective earth to the terminal. The same protective earth
should also be connected to the earth terminal of the generator.
g) Plug the high voltage connectors into the surge generator.
h) Connect the INA 3084 synchronisation unit to the generator.
i) Connect the EUT supply.
j) Switch on the mains power at the generator.
k) Choose the appropriate coupling mode.
l) Connect the device to be tested according to the relevant safety specica-
tions and with due regard to the magnitude of the pulse voltage selected.
Take the necessary measures to cope with any possible explosion or out-
break of re.
m) Switch on the EUT power supply.
n) Operate the generator as instructed in its manual and carry out the required
tests.
It is assumed that the test rig has been set up in accordance with the foregoing
notes and that the device to be tested has been connected taking the relevant
safety measures into account.

174.2 Preparation of the CDN 3083-S200M
Prepare the test setup according to the chosen standard and put both decou-
pling network units, etc. to the place where the CDN shall be used for testing.
4.2.1 Mounting of the common earth rails
Place the two surge decoupling networks in parallel to each other. Looking from
the top, make sure that the N-L1 network is below the L2-L3 network.
To enable proper synchronisation, assure that side L1
being placed next to L2!
Use the delivered isolated allen key to screw the copper earth rails on to both
ends of the decoupling networks (2 x 2 screws each side per network).
Make sure that the copper rail is properly mounted and
tightened. Use only the delivered screws.

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Manual high-current coupling network CDN 3083–S200M
Figure 3: Top view on CDN units
Figure 4: Assembly of copper earth rail
After this preparation work, the CDN is stable enough for being turned to its side
prior to mounting the wheels at the bottom of the case, if required.
2x
M8 x 16 mm
2x
M8 x 16 mm
2x
M8 x 16 mm
2x
M8 x 16 mm
4.2.2 Mounting positioning plates
Screw the base plates (positioning plates) of the synch unit and of the cou-
pling unit, with the knurled screws to the foreseen holes on the outside of the
decoupling networks. Connect the synch lines (safety banana connector) to
the decoupling units. If CDN 3083-S200M decoupling networks are not placed
correctly, the positioning plates can not be screwed on.

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Figure 5: Location of synchronisation unit and of positioning plate
Figure 6: Synchronisation plate (l.h.) and positioning plate (r.h.)

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Manual high-current coupling network CDN 3083–S200M
4.2.3 Assembly for IEC coupling
For IEC coupling, add the coupling modules INA 3080 in the middle of the
positioning plate and press it slightly down into the positioning holes. Fix the
INA by pushing the black quick snap-on knobs down. The CDN 3083-S200M is
now ready to use.
Figure 7: Location of IEC coupling module
Figure 8: View of IEC coupling module