Power Derating; Reduction In Power Due To Environmental Conditions; Reduction In Power Due To Input Voltage - Power One AURORA PVI-10.0-I-OUTD-400 Installations- Und Bedienungshandbuch

Use and installation manual
(PVI-10.0/12.0-I-OUTD(-S)-400 Rev:1.3)
8.4

Power Derating

In order to ensure inverter operation in safe thermal and electrical conditions, the
unit automatically reduces power input to the grid.
Power derating may occur in two cases:
8.5.1

Reduction in power due to environmental conditions

The degree of power reduction, and the temperature at which it starts occurring,
also depend, besides ambient temperature, on many operating parameters,
including, for example, input voltage, grid voltage, and power available from the
photovoltaic field. AURORA, therefore, can reduce power during certain periods
of the days according to the value of these parameters.
However, AURORA guarantees maximum power up to an ambient temperature of
50°C for PVI-10.0-I, and of 45°C for PVI-12.0-I, provided that it is not exposed to
direct solar radiation.
8.4.1

Reduction in power due to input voltage

The chart shows the automatic reduction in power output when input or output
voltage is too high or too low.
14000
12000
10000
8000
6000
4000
2000
0
0
Fig. 29 - Derating curve for two input channels
200 400
Input voltage (V)
96 97
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PVI-12.0
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