SMA SUNNY TRIPOWER X 20-US - Page 96

14 Technical Data
SMA Solar Technology AG
Operating manualSTPxx-US-50-BE-en-1196
STP 20-US-50 STP 25-US-50 STP 30-US-50
Maximum apparent
power
20000VA 25000VA 30000VA
Rated apparent power 20000VA 25000VA 30000VA
Nominal grid voltage 480 V / 277 V 480 V / 277 V 480 V / 277 V
Rated grid voltage 277V 277V 277V
Voltage range
2)
244V to 305V 244V to 305V 244V to 305V
Rated current at 277V 24A 30A 36A
Maximum output cur-
rent
24A 30A 36A
Maximum output cur-
rent under fault condi-
tions
682.5 Apeak / 10 ms 682.5 Apeak / 10 ms 682.5 Apeak / 10 ms
Total harmonic distor-
tion of the output cur-
rent with total harmonic
distortion of the AC
voltage <2%, and AC
power >50% of the
rated power
< 3% < 3% < 3%
Inrush current <10% of the nominal
AC current for a
maximum of 10ms
<10% of the nominal
AC current for a
maximum of 10ms
<10% of the nominal
AC current for a
maximum of 10ms
Rated grid frequency 60Hz 60Hz 60Hz
Grid frequency
2)
60 Hz 60 Hz 60 Hz
Operating range at
grid frequency 60Hz
50Hz to 66Hz 50Hz to 66Hz 50Hz to 66Hz
Power factor at rated
power
1 1 1
Displacement power
factor, adjustable
0.8overexcitedto0.8
underexcited
0.8overexcitedto0.8
underexcited
0.8overexcitedto0.8
underexcited
Feed-in phases 3 3 3
Connection phases 3-(N)-PE 3-(N)-PE 3-(N)-PE
Overvoltage category
in accordance with
UL62109-1
III III III
2)
Depending on the configured country data set