The general design of the HFS harmonic filter with fan module, aux. power supply module, the design and
construction of upper-stage is shown in Figure 2. There are load choke Lo, trap capacitor Ct, trap disconnect
jumper, power terminal and fan module visible on the upper-stage. The design and construction of the lower-stage
is shown in Figure 3. The line choke Li, trap choke Lt, RC damper module are constructed on the base plate,
which contains screw holes for wall mounting.
Figure 2. Upper-stage of HFS harmonic filter
Figure 3. Lower-stage of harmonic filter
5.
Filter Installation
Please follow the simple steps below to ensure a safe and reliable filter function for many years. Please do also
always follow the general safety and installation guidelines provided within this document as well as relevant
local, national or international standards that are applicable.
Step 1: Visual inspection
All LS HFS harmonic filters have undergone rigorous testing before they left our ISO
9001:2008 certified factories. They are packaged with great care in a sturdy container for international shipment.
However, carefully inspect the shipping container for damage that may have occurred in transit. Then unpack the
filter and carefully inspect for any signs of damage. Keep the shipping container for future transportation of the
filter. In the case of damage, please file a claim with the freight forwarder involved immediately and contact your
local LS Electric partner for support. Under no circumstances install and energize a filter with visible
transportation damage. If the filter is not going to be put in service upon receipt, store within the original
container in a clean, dry location, free of dust and chemicals and with respect to named temperature limits
