Fronius Primo GEN24, Operating Instructions Manual

Page: 34 / 76

Parameter Range of values Standard
value Description
"Threshold Stat-
ic" 0
‑
200
[% UacNominal]
40 % Voltage threshold (in % of
nominal voltage) that must
be exceeded or fallen be-
low to activate VFRT re-
gion 2 and its associated
current inrush mode.
- > 100 % ... Region 2 is
used as HighVoltage-
Disturbance Region.
- < 100 % ... Region 2 is
used as LowVoltage-
Disturbance Region.
Setting condition:
Threshold R1 > Threshold
R2 > Threshold R3
Default value 40 % means
that the inverter is in nor-
mal current feed-in opera-
tion up to 40 % of the
nominal voltage. Below
40 % VFRT becomes act-
ive with the selected cur-
rent inrush mode (default:
Zero Current).
"k-factor Posit-
ive Sequence" 0
‑
10 2.0 Multiplication factor (k-
factor) for the positive-se-
quence system reactive
current in region 2.
Only applied with current
inrush mode "Active Sym-
metric Current" and "Act-
ive Asymmetric Current".
"k-factor Negat-
ive Sequence" 0
‑
10 2.0 Multiplication factor (k-
factor) for the negative-
sequence system reactive
current in region 2.
Only applied with current
inrush mode "Active
Asymmetric Current". If
an asymmetrical feed is
required, this is usually set
to the same value as "k-
factor Positive Sequence".
If symmetrical supply is
required, this is set to 0.
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