Input Filter Unit (Ifu) - ABB ACS6080 User Manual

3.3.2

Input filter unit (IFU)

The IFU is used in combination with 6-pulse active rectifier units
connected to a weak supply network. The tuned filter is located between
the input transformer and the ARU and reduces harmonic voltages
injected to the supply network.
(1) TEU
(2) IFU
(1) Resistor
(2) Capacitor
3BHS842007 E01 REV C
1 2
L1
L2
L3
Figure 3-18 IFU circuit diagram
1
2
Figure 3-19 IFU cabinet
ACS6080 USER MANUAL
03 POWER ELECTRONICS AND CABINET FEATURES
3
L1
L2
L3
(3) ARU
(3) Reactor
1
2
3
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