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2. Forced ventilation
Forced cooling using a fan is sometimes required (Fig. #6). 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, contac-
tors, 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).
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.
1.2.6
CLMD13 group assembly
To make a group of several CLMD13 capacitor units (up to 4 maximum):
1. CLMD13 units are delivered with top protection covers already mounted. Unscrew them before assembling.
2. Place the CLMD13 capacitor units on a plane and firm punched surface (or support bars), side by side. Please
note the CLMD13 orientation is highlighted by top "U" marking next to its power terminals as well as an arrow print
on the top cover. U and arrow markings must match. Make sure all CLMD13 of a group have the same orientation
(Fig. #7).
3. Align them together by their black terminal plates (Fig. #8).
4. Install interconnection bars (optional) between respective terminals and fix them with the delivered bolts with a
torque of 3Nm (recommended torque for M6 according to DIN 46-200) (Fig. #9).
5. For proper IP protection degree, open the necessary knockouts in the top covers for interconnection bars and put
them back over the capacitor units.
1.2.7
CLMD fixation (Fig. #10)
Fix each CLMD unit through its fixation slots with appropriate screws/bolts (not included).
For CLMD33 /33S, at least 4 fixation holes must be used. Make sure that the rigidity of the support and the screws
are sufficient to bear the weight of the CLMD capacitor unit(s).
1.2.8
Electrical connection
1.2.8.1
Power supply
Cables should be rated at minimum 1.5 times the nominal capacitor current.
Appropriate cable shoes (cable lugs for CLMD33 /33S type) must be used in accordance with good common practice
of electrical installation.
While tightening the bolt, a torque of
3Nm M6
10Nm M10
(Recommended torque according to DIN46-200)
STATUS
Released
6Nm M8
15Nm M12
SECURITY LEVEL
External
L O W V O LTA GE CAPA CITO RS CLM D
DOCUMENT ID
9AKK107046A5100
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