Filter Noise Level - ABB PQFS Installation, Operation And Maintenance Instructions

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Carefully lift the enclosure and slide it down over the 2 fixation bolts until it is
supported by the 2 fixation plates. Screw the 2 bolts to ensure a good fixation of
the filter. Then the lifting tool can be disengaged.
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By means of a lower end fixation screw (not provided) the enclosure can be pushed
against the rear support at the bottom also (see
For additional units, the same procedure has to be followed.

5.6 Filter noise level

Active filters produce a certain level of noise when they operate. The noise level depends
on the operating conditions of the unit and on the rating of the filter. These values
should be taken into account when choosing a location for the filter.
Unit rating
30A - 60A
70A - 100A
120A
34 Mechanical design and installation  Manual Power Quality Filter PQFS
Figure 21: Eyebolts and fixation of PQFS
Figure 22: Lower end fixation
Table 17: Noise level
Noise (dBA) at one meter
65.3 typically
68.4 typically
70.9 typically
Figure 22).