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PVI-4.2-TL-OUTD
PVI-4.2-TL-OUTD-S
P
ower derating
PVI-4.2-TL-OUTD - Efficiency Curves
99
97
95
93
91
89
87
85
0%
10%
20%
In order to allow inverter operation in safe thermal and electrical condi-
tions, the unit automatically reduces the value of the power fed into the
grid.
Power limiting may occur due to:
• Adverse environmental conditions (thermal derating)
• Percentage of output power (value set by the user)
• Grid voltage over frequency (mode set by user)
• Grid over voltage U>10min Der. (enabling carried out by user)
• Anti-islanding
• Grid under voltage
• Input voltage values too high.
• Input current values too high.
- 21 -
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30%
40%
50%
60%
70%
% of rated Output Power
2 - Characteristics
215Vdc
360Vdc
480Vdc
80%
90%
100%
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