CIRCUTOR AFQ Series - Manual (Page 55)

AFQ-4W
Instruction Manual 55
4.3.3.- CONFIGURATION OF PARAMETERS
This menu ( Figure 56 ) contains the parameters that have to be configured during
the installation of the active filter. To be modify these parameters, you have to
unlock the password (refer to 4.3.6.- PASSWORD) and have the filter in “STOP”
mode.
Figure 56: Parameter configuration screen.
Transformer ratio:
The ratio between the load transformer primary and secondary.
The active filter admits the following transformation ratios: 5/5, 10/5, 15/5, 20/5,
25/5, 30/5, 40/5, 50/5, 60/5, 75/5, 100/5, 125/5, 150/5, 200/5, 250/5, 300/5,
400/5, 500/5, 600/5, 700/5, 750/5, 800/5, 1000/5, 1200/5, 1500/5, 1600/5,
2000/5, 2500/5, 3000/5, 4000/5 and 5000/5.
Minimum current:
The minimum load current to start the active filter. The AFQ-4W will stop when
the load current is below the entered value and will start when it is higher.
Control algorithm:
Control algorithm selection:
1, Frequency mode: Harmonic filtering based on the selection of the
harmonics to be neutralised from the 3rd to the 25th. (Option enabled by
default.)
2, Temporary mode: Harmonic filtering based on the total and instant
neutralisation of the 3rd to 50th harmonics.
When the temporary mode is active, the AFQ-4W resets all the harmonics
selected in “Selective filtering” (Section 4.3.2.2) to completely neutralise
the harmonics.