Power One AURORA PVI-3.0-OUTD-S-US, Инструкция по установке и эксплуатации

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Installation and Operator’s Manual Page 101 of 108
(PVI-3.0/3.6/4.2-OUTD-x-US Rev: 2.1)
208 11.7 49.92 162.0 121.8
240 10.6 49.92 139.7 118.9
PVI-3.0-
OUTD
Series
277 8.6 49.98 92.2 116.5
8.8 Power Derating
In order to ensure inverter operation under safe conditions both from the temperature
and electrical point of view, the unit automatically decreases power input in the
distribution grid.
Power derating can occur in two cases:
Power reduction due to environmental conditions
Power reduction and temperature at which it occurs depend on many operating
parameters other than ambient temperature, such as input voltage, grid voltage, and
power available from the photovoltaic panels. The Aurora inverter can thus decrease
power output during certain periods of the day according to these parameters.
In any case, the inverter ensures top power up to 40°C ambient temperature, when it is
not directly exposed to the sun.
Power reduction due to input voltage
The graph in Fig. 27 shows automatic power output derating when input or output
voltage is too high or too low.