Delta BDI Series User Manual

15
The inverter can be operated in ambient temperatures from -22 °F to 149 °F (-30°C to 65°C). The
following diagram illustrates how the output power of the solar inverter is reduced automatically in
accordance with ambient temperature.
It’s better to install the device in a well-ventilated, cool and dry location to avoid any power derating.
Due to tolerance of temperature sensor and e󰀩ciency di󰀨erence under di󰀨erent PV voltages, this
derating curve may be a little di󰀨erent from actual behaviors of unit.
2.4 Ambient temperature
Figure 5: Typical temperature derating curve of Delta Ex_BDI series inverter
2.5 Inverter PV input DC voltage range
Figure 6: Voltage Range of Ex_BDI series inverter
0%
20%
40%
60%
80%
100%
120%
-25 -15 -5 5 15 25 35 45 55 65 75
Maximum Output Power (%)
Ambient Temprature(℃)
0
2000
4000
6000
8000
10000
12000
0 100 200 300 400 500 600
Pac (W)
PV input(V)
50V
280V
480V
E10_BDI
Non-ope rati ng
range
PV voltage derating curve for Ex-BDI series
E8_BDI
225V
1786W
E6_BDI
E4_BDI
200V

Delta BDI Series Specifications

General

Brand	Delta
Model	BDI Series
Category	Inverter
Language	English