Sungrow SG125HV, User Manual

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2 Product Description User Manual
22
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
/Pn
Vgrid [V]
0
0.8
0.2
0.6
0.4
1.0
600 V
min
V
max
570
0.9
Fig. 2-7 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
1425
1500
0.8
Vmpp [V]
1300 1200
0.04
P
/Pn
1250
0.2
0.6
0.5
1450
Fig. 2-8 Input voltage and the power derating(Pf=1)