Sungrow SG2K5-S - Page 22

2 Product Description User Manual
14
Output Power
Grid Frequency, Hz
OverFrq Start
a
Inverter to disconnect
when f
≥ 51.5 Hz
OverFrq End
Pm
Pnom b
Fig. 2-7 Active Power Response at Over-frequency (curve A)
Output Power
Grid Frequency, Hz
OverFrq Start
a
Inverter to disconnect
when f
≥ 51.5 Hz
OverFrq End
Pm
Pnom
Fig. 2-8 Active Power Response at Over-frequency (curve B)
For Italy, when the grid frequency returns back to 50 ± 0.1 Hz (default setting)
for a minimum continuous time of 300 s, the system will end the frequency
response and return to its ordinary operation linearly with a transitional time not
less than 300 s, as shown in the figure below.