SMA SC 200 - Manual (Page 60)

Grid Monitoring SMA Solar Technology AG
60 SC-BEN100262 User Manual
11.3 Setting the Medium-Voltage Level
(applicable only to HE devices)
You can set the medium-voltage level for display and grid monitoring. You can set the grid voltage to
the appropriate value via the parameter "VRtg". The default value of the parameter "VRtg" is 20 kV.
It is important to adjust the transmission ratio of the external medium-voltage transformer at the same
time. To do this, you only have to adjust the high-voltage side via the parameter "TrfVolExlHi". The
value must equal the value of the parameter "VRtg". The low-voltage side is preset according to the
specific device.
Important: you must always set the phase conductor voltages.
11.4 Disconnection Protection Ramp (DCRmp)
After a grid failure the Sunny Central slowly starts up again, with a disconnection protection ramp of
max. 10 % of the nominal power per minute. You have the option of switching this disconnection
protection ramp on or off. For Germany, the disconnection protection ramp is standardly switched on.
If you switch the disconnection protection ramp off, the Sunny Central runs up to maximum output in
the shortest time possible.
Activating/deactivating the disconnection protection ramp
If you wish to activate or deactivate the disconnection protection ramp, please consult the
Sunny Central Service.