Read This First - ABB LVCS Instructions D'installation, D'utilisation Et D'entretien

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.
For a safe use of LVCS capacitor units, please
ensure:
1. Installation and maintenance are undertaken only
by authorized and qualified personnel, in
accordance with current local regulations;
2. Isolate the equipment from the supply before
attempting to gain access.
Inspection on reception
Unpack the LVCS and check that:
- data on the label correspond to those of your
purchase order and local regulations;
- the LVCS 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, we recommend that the panel including
LVCS units be positioned in such a way that LVCS
units are in vertical position (Fig. #1).
WARNING! Failure to respect installation rules may
lead to premature failure, other material damage to
installations or bodily injury.
INSTALLATION
Applicable standards
IEC 60831 Parts 1 and 2. UL 810. C 22.2 N°190.
Current local regulations.
Protection
The LVCS is an IP20 protected capacitor unit.
Installation and use
Indoor installation on firm foundation or fixed on a
rigid plate/frame in well-ventilated situations where
the ambient temperature 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 category product).
WARNING! The ambient temperature for capacitors
inside a cubicle is the temperature around the
capacitors and not around the cubicle.
Vertical and horizontal mounting
The LVCS must be fixed in such a way as to ensure
a natural airflow between 2 LVCS units, from bottom
to top.
In case of vertical mounting, use a punched
mounting plate or support bars to allow for free
airflow between the capacitors (Fig. #2). Do not
mount upside down. (Fig. #3)
In case of horizontal mounting, install so that the
natural airflow goes between the units (Fig. #4). Do
not mount so that the natural airflow is blocked (Fig.
#5).
Intallation in a cubicle
When the capacitors are installed in a cubicle the
components 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 partition is
usually recommended. Reactors do in general
dissipate much 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 in order 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 (Fig. #7). 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. For
proper mounting of the LVCS capacitors inside a
cubicle, please refer to Fig. #7.
2. Forced ventilation
Forced cooling using a fan is sometimes required
(Fig. #6, #7). Please refer to the following
recommendations:
- Consider the maximum ambient temperature of
the installation site including the heating effect of
the capacitor installation itself.
- Consider the heat dissipated from all the
components and apparatus in the cubicle:
reactors, capacitors, contactors, fuses, etc.
- Consider the maximum permissible temperatures
for all the components and apparatus.
- Consider how to direct the airflow with respect to
the position of the capacitors (Fig. #6, #7).
3. The use of an overtemperature protection is
recommended in order to switch the bank off in
case of fan failure or overtemperature due to
other cause.
4. Regular maintenance and cleaning of any filters
is necessary. Without regular cleaning the
cooling system may become inefficient.
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