Unit rating (Arms)
30
45
60
70
80
90
100
120
5.4 Standard cubicle dimensions, fixing holes and clearances
Standard PQFS enclosures have dimensions of 588 x 326 x 795 mm (width x depth x
height). Each enclosure contains one power unit and is fitted with its own main
contactor. Power cables with protecting fuses can be connected to each PQFS from the
bottom.
A spacing of 30 mm between the filter sides and walls or other enclosures is
recommended. However the filter can rest on its back against a wall.
A spacing of 500 mm below the filter bottom and above the filter top is recommended.
Figure 18
shows a view of a typical PQFS with characteristic dimensions.
32 Mechanical design and installation Manual Power Quality Filter PQFS
Table 16: Filter unit heat losses (maximum values)
Heat loss (kW)
1.5
1.8
2.1
2.6
2.9
3.2
3.5
4.3