SMA SC 400HE - Manual (Page 53)

SMA Solar Technology AG 4 Sunny Central Control
Operating Manual SC4-63HE-BE-BEN103280 53
4.8.11 "VArCtlVol" Procedure
Reactive power is set depending on the grid voltage. The reactive power target value is adjusted in
stages.
Figure 17: Curve for reducing reactive power depending on grid voltage
If the grid voltage and the parameterizable voltage difference "Q-VDif" change for the configurable
duration of "Q-VDifTm", the reactive power target value is adapted to the "Q-VArGra" value.
The parameterization of this function depends on the medium voltage.
Parameter protection
Contact the SMA Serviceline before selecting or parameterizing this procedure.
Used parameters Q-VDif
Q-VArGra
Q-VDifTm
Q-VRtgOfsNom