Solare Datensysteme Solar-Log - Manual (Page 141)

141
Special functions
23�3�3 Fixed reactive power in Var
Reactive Power Management
This function allows the connected inverters to generate a certain reactive power in Var for a definable
period of time.
Procedure:
•
Select Fixed reactive power in Var .
•
Activate the interfaces.
•
Enter the from (time) .
•
Enter the Reactive power for this time period.
•
Check the box Inductive/under-excited for reactive power.
•
If necessary, enter additional times and the accompanying reactive power
•
SAVE settings.
If a certain reactive power in Var must be supplied for 24 hours, the time 00:00 as well as the value in Var
have to be entered in the first line along with checking the Inductive box. The other lines must also be filled
with 00:00. It is not necessary to enter reactive power.
Reductions
The following configuration options are available in the Reductions section.
•
Max. cos(phi) inductive/underexcited and max. cos(phi) capacitive/over-excited:
A maximum shift factor can be defined wit this the reduction. With this, it can be that less reactive
power is fed-in into the grid than allowed in the partial load range in order to maintain the shift
factor limits.
Note
Entering zero as the value deactivates the particular limit.