Steca StecaGrid 8 000+ 3ph - Technical Data; Inverter Specifications

14 Technical data
14.1 Inverter
StecaGrid 8000+ 3ph StecaGrid 10 000+ 3ph
DC input side (PV generator connection)
Number of DC inputs 4
Maximum start voltage 845 V
Maximum input voltage 845 V
Minimum input voltage 350 V
Startup input voltage 350 V
Rated input voltage 600 V
Minimum input voltage for rated
output
350 V
MPP voltage 350 V … 700 V
Maximum input current 32 A
Rated input current 14 A 17.3 A
Maximum input power at maximum
active output power
9,250 W 10,800 W
Rated input power (cos φ = 1) 8,400 W 10,400 W
Recommended maximum PV output 10,500 Wp 12,500 Wp
Derating / power limiting Occurs automatically when:
• input power > max. recommended PV power
• cooling is inadequate
• input current > 32 A
• grid current > 16 A
• internal or external power reduction (derating)
• grid frequency too high (according to country setting)
• limiting signal received via an external interface
AC output side (mains grid connection)
Output voltage 320 V … 480 V (depending on the country settings)
Rated output voltage 400 V
Maximum output current 16 A
Rated output current 11.6 A 14.3 A
Maximum active power (cos φ = 1) 8,800 W
1) 3)
10,300 W
2) 3)
Maximum active power (cos φ = 0.95) 8,800 W
3)
9,800 W
3)
Maximum active power (cos φ = 0.90) 8,800 W
3)
9,300 W
3)
Maximum apparent power (cos φ = 0.95) 9,260 VA
4)
10,300 VA
4)
Maximum apparent power (cos φ = 0.90) 9,780 VA
4)
10,300 VA
4)
Rated output 8,000 W
3)
9,900 W
3)
Rated frequency 50 Hz
Grid type L
1
/ L
2
/ L
3
/ N / PE
Grid frequency 47.5 Hz ... 52 Hz (depending on the country settings)
Power losses in nighttime operation < 2.5 W
Feeding phases three-phase
Distortion factor (cos φ = 1) < 4% (max. output)
Power factor cos φ 0.90 capacitive ... 0.90 inductive
Characterisation of the operating behaviour
Maximum efficiency 96.3%
European efficiency 95.2% 95.4%
MPP efficiency > 99%
Efficiency values (at 5%, 10%, 20%,
25%, 30%, 50%, 75%, 100% of the
rated power) at rated voltage
83.6%, 92.4%, 95.1%,
95.6%, 95.8%, 96.3%,
95.7%, 95.1%
87.5%, 93.8%, 95.6%,
95.8%, 96%, 96.3%, 95.8%,
95.1%
Efficiency values (at 5%, 10%, 20%,
25%, 30%, 50%, 75%, 100% of the
rated power) at minimum MPP voltage
84.4%, 91.8%, 94.5%, 95%,
95.1%, 95.6%, 94.7%, 94.3%
88.3%, 93.2%, 95%, 95.2%,
95.3%, 95.6%, 94.8%, 94.3%
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744.378 | 12.13
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