Fronius GEN24 Operating Instructions Manual page 33

Region 2
These setting values define how the inverter behaves within Region 2. The choice
of setting has no effect on regions 1 and 3.
Parameter Range of values
"Current Calc
Mode"
Passive
Zero Current
Active Symmet-
ric Current
Active Asym-
metric Current
Standard Description
value
Current inrush mode for
region 2.
This parameter defines the
type of current feed dur-
ing a region 2 voltage fault.
The pre-fault active cur-
rent and pre-fault reactive
current are maintained.
Zero Cur- The alternating current is
rent adjusted to zero. There is
no effective or reactive
power feed-in during the
fault.
A symmetrical reactive
current (positive-sequence
system reactive current) is
fed into the grid. The
amount of the additional
reactive current results
from the "k-factor Positive
Sequence" multiplied by
the amount of the voltage
dip. No active current is
fed in.
An additional reactive cur-
rent is fed into the grid. At
the same time, active cur-
rent is fed in (whereby the
reactive current has prior-
ity). The amount of addi-
tional reactive current res-
ults from the k-factors
multiplied by the amount
of voltage dip. If the "k-
factor Negative Sequence"
is set to 0, the feed is sym-
metrical. Otherwise, asym-
metrical faults are respon-
ded to with an asymmet-
rical current in-feed.
33