ABB PQFM Instruction Manual page 34

cables can be connected to each PQFM from the top or the bottom. Note that if the "top
cable entry option" has not been installed, the customer has to make a cable pass
through in the filter roof and protecting grid. In order to do this, remove the roof by
unscrewing the lifting lugs. Optionally, each cubicle can be equipped with a cable pass
through for top cable entry. Also an extra cable entry cubicle (W x D x H: 600 x 600 x 2150
mm) may be provided for single cable entry point (multi-unit filters).
A filter panel (consisting of one or more power units) can be installed against a wall or
back to back to other cubicles providing that the heat transfer from the other cubicles
to the filter cubicle is negligible. If a high heat transfer is expected, a spacing of 100 mm
between the filter panel and the wall or the other cubicles is recommended. Figure 14
shows a top view of a typical PQFM installation with indication of the cubicle fixation
holes. For fixing the cubicle to the floor M12 bolts and washers are recommended.
Note: A tolerance between 0 and 6 mm is applicable on all dimensions given.
Figure 14 Top view of a typical PQFM installation with indication of the fixation holes
For systems with more than 1 cubicle, the cubicles can optionally be mounted on a
common base frame of 100 mm height. Standard dimensions for PQFM filters with up
to 3 power units are shown in Figure 15.
34 Mechanical design and installation ç Manual Power Quality Filter PQFM