Janitza AHF
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5.3.1 Electrical connection of modules with LCD display with different capacities
In the interest of satisfying different requirements for the harmonic compensation, the user
may combine AHF modules with different capacity levels.
For example, to compensate harmonics current and a maximum current output of 75 A,
the AHF-LCD W 400 V 25 A and the AHF-LCD W 400 V 50 A can be combined with each
other. With this combination, the electrical connection of the power terminals must be
carried out according to section 5.3 (important information on the electrical connection of a
single module).
1S
1
1S
2
2S
1
2S
2
3S
1
3S
2
CT
A
A-N
B
B-N
C
C-N
AHF
A
B
C
N
PE
A
A-N
B
B-N
C
C-N
A
B
C
N
PE
AHF
AHF-LCD W 400 V 25A
AHF-LCD W 400 V 50A
Figure 3-12
Electrical connection of two LCD modules with different capacities
AHF-LCD W 400 V 25 A and AHF-LCD W 400 V 50 A
Grid side
Load side