Read This First; Installation - ABB CLMD03 Installations-, Betriebs- Und Wartungsanweisungen

en
Before installation, read this notice carefully and keep it at
disposal of people in charge of installation, maintenance
and operation.

Read this first

Safety
WARNING! Wait 5 min. after isolating supply before
handling. After the 5 min. wait and as an additional pre-
caution before commencing work, carefully proceed with
DC voltage measurement on the terminals and make sure
of the capacitor discharge.
For a safe use of CLMD03 capacitor units, please ensure
− Installation and maintenance are undertaken only
by authorized and qualified personnel, in ac-
cordance with current local regulations;
− Isolate the equipment from the supply before att-
empting to gain access.
Inspection on reception
Unpack the CLMD03 and check that:
− data on the label correspond to those of your
purchase order and local regulations;
− the CLMD03 is not damaged.
Any loss or damage should be notified immediately to
your closest ABB agent.
Storage
Indoor, in dry, dust free and non-corrosive environments,
protected from vibrations or shocks.
Storage temperature: minimum: -40°C/-40°F, maximum:
75°C/167°F.
Transportation and handling
In case severe conditions of transportation are expected,
make sure the fixation points are strong enough to
withstand weight of the CLMD03 and vibrations that may
occur.
WARNING! Failure to respect the installation rules may
lead to premature failure, other material damage to instal-
lations or bodily injury.

Installation

Applicable standards
IEC 60831 Parts 1 and 2. Current local regulations.
Protection
IP00 by default and IP20 with optional top cover.
Installation and use
Indoor installation on firm foundation or fixed on a rigid
plate/frame in well-ventilated situations where the air
temperature around the capacitor does not exceed
35°C/95°F over one year, 45°C/113°F over 24 hours and
55°C/131°F (according to IEC 60831 Parts 1 and 2 for a
-25/D temperature category product).
Always refer to the nameplate for exact specifications.
WARNING! The ambient temperature for capacitors
inside a cubicle is the temperature around the capacitors
2 English | ABB CLMD03 manual
and not around the cubicle.
WARNING! Like other standard capacitor units, CLMD03
discharge devices are not suitable for use with rapid
switching rates like thyristor switched banks. The mini-
mum off time of CLMD03 is 40 sec. Additional external
resistors are not a solution for such cases. Only specially
designed capacitors must be used in such applications.
Vertical and horizontal mounting
WARNING! Following instructions on mounting must be
strictly followed. Incorrect mounting could damage the
capacitors.
The CLMD03 capacitors must be fixed in such a way as
to ensure a natural airflow from bottom to top. The IPE
(Internally Protected elements) casings are linked by a
solid plate (in dark in Fig. #1) which will block the natural
air flow. For instance, mounting in Fig. #2 is forbidden.
Several CLMD03 units can be installed side by side, pro-
vided that they are in line (Fig. #3). Triangle and square
configuration are not allowed. The minimum free space
between groups of in-line adjacent units is 25 mm (Fig.
#4 & 5).
In case of vertical mounting, use a punched mounting
plate or support bars to allow free airflow around capaci-
tors units (Fig. #6.
Do not mount upside down. (Fig. #8)
In case of horizontal mounting, install so that the natural
airflow goes through the units without major constraints
(Fig. #9). Do not mount so that the natural airflow is
blocked (Fig. #10 & 7).
Installation in a cubicle
WARNING! Guidelines only apply if the following limits
are respected:
− Maximum room temperature: 40°C (1 hour).
− Average maximum room temperature over 24
hours: 35°C.
− Average maximum room temperature over 1 year:
25°C.
When the capacitors are installed in a cubicle the com-
ponents should be placed in such a way as to optimize
the cooling. Do preferably place devices with high heat
dissipation above the capacitors to avoid overheating
them. When reactors are used they should be placed in
such a way that they do not radiate heat directly on the
capacitors. A thermal barrier is recommended. Reactors
do in general dissipate much more heat, so their thermal
impact through convection must also be taken into
account.
1. Natural air circulation
The difference in height between air inlet and air outlet
should be large enough to improve the air circulation. The
airflow should be channeled in such a way as to well cool
the hottest spots in the cubicle. Air should flow from the
bottom to the top of the cubicle. The cross-section of
the top air outlet should be at least equal to 1.2 times the
cross-section of the bottom air inlet.