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Feed-In Management
24.3.2 Fixed value cos (Phi) shift factor
With this function it is possible to adjust the connected inverters to a fixed shift factor.
Using this matrix it is possible to specify a fixed cos (Phi) for certain periods of time. If over the course
of one day various shift factors must be adhered to, they can be configured here. If an Utility Meter with
power measurement is available, the measurements can be performed at the feeding point.
Procedure:
•
Select Fixed value cos (Phi) shift factor.
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Activate the interface assignments to control.
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Enter the from (time).
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Enter the cos (Phi) for this time period.
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Check the box Inductive/under-excited for cos (Phi).
•
If necessary, enter additional times and the accompanying cos (Phi).
•
If necessary, activate measuring at the feeding point.
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SAVE the settings.
If a certain cos (Phi) must be maintained for 24 hours, the time 00:00 as well as the cos (Phi) have to be
entered in the first line. The other lines must also be filled with 00:00. It is not necessary to enter the cos
(Phi).
24.3.3 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:
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Select Fixed reactive power in Var.
•
Activate the interface assignments to control
•
Enter the from (time).
•
Enter the Reactive power for this time period.
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Check the box Inductive/under-excited for reactive power.
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If necessary, enter additional times and the accompanying reactive power
•
SAVE the 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/underexcited 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 fac-
tor limits.