Sungrow SG125HV-30, User Manual

Page: 26 / 105

1 Product Description User Manual
16
2
min 2
max
125 570V
600
125 570V 600V
600
125 600V

   



   


   


grid
o grid
grid
o grid
o grid
V
P kVA V V
V
P kVA V
P kVA V V
P
/P
n
Vgrid [V]
0
0.8
0.2
0.6
0.4
1.0
600 V
min
V
max
570
0.9
Fig. 1-8 Grid under-voltage derating(Pf=1)
High input voltage derating
If the input voltage is too high, the inverter may derate the power output. The
relationship between the input voltage and the power derating is shown in the
figure below.
0.4
1.0
1500
0.8
Vmpp [V]
1100 900
0.04
P
/P
n
0.2
0.6
0.5
700 860 1250 1450 1420
Fig. 1-9 Input voltage and the power derating(Pf=1)