Input Voltage Derating of M125HV_111
Figure 7-1: Input Voltage Derating Curve
Output voltage at 600Vac
P/Pn(%)
(V)
860 14501350 1500
100%
32%
72%
Pn=125kW
If the input voltage is higher than 1350V, the inverter may derate the output
power.
The relationship between the input voltage and the output power derating is shown in
Figure 7-1.
Either power module temperature or inverter internal temperature exceeds the upper limit,
the inverter will derate power until the temperature drops within the permissible range.
● Power will derate when ambient temperature is over 50°C. Derating curve is shown in
Figure 7-4.
● Apparent power could be 110% with ambient temperature is under 40°C. Derating curve
with PF=0.9 is shown in
Figure 7-5.
The width operation input voltage with full power can fulfill high latitudes application with
up to 2 times dc/ac ratio. When doing panel configuration design of the solar field,
please refer to the input voltage derating curve. Input voltage derating curve with PF=1
and PF=0.9 is shown in Figure 7-6 and Figure 7-7.
87
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