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This Off-Grid solar system is available in 10KVA ~ 120KVA models with DSP digital control technology, it is combined with pulse-width modulation (SVPWM), disturbance MPPT control and multi-level control technology to enable the system to track the maximum power of solar panels fast. Its secure power supply feature provides good quality power with regulated voltage and frequency to the loads, and it is featured with energy storage and staggering power consumption as well. It is an ideal inverter for medium-sized or large-scale residential, commercial and industrial PV applications which are off the grid, such as village, farm, factory, office building and islands etc.

Features
Specifications
MODEL 10 KVA 20 KVA 30 KVA 40 KVA 60 KVA 80 KVA 100 KVA 120 KVA
Rated power 9 KW 18 KW 27 KW 36 KW 54 KW 72 KW 90 KW 108 KW
Rated current 15 A 30 A 45 A 60 A 91 A 120 A 152 A 182 A
Output power factor 0.9
Rated input voltage 380 Vac ± 20%
Rated output voltage 380 Vac ± 1%
Battery voltage 360 Vdc
Number of battery 12 Vdc * 30 pcs / 2 Vdc * 180 pcs
Operating mode AC and PV complementation
PV INPUT
Max. voltage (Voc) 750 Vdc
Optimum operating voltage (Vmp) 450 ~ 550 Vdc
Max. conversion efficiency ≥ 98%
Floating charge voltage (25℃) 414 Vdc ± 1%
Equalizing charge voltage (25℃) 428 Vdc ± 1%
MPPT Max. current 60 A 120 A 180 A 240 A 300 A 360 A
Max. PV power 25 KW 2 * 25 KW 3 * 25 KW 4 * 25 KW 5 * 25 KW 6 * 25 KW
Number of PV input 1 2 + 1 (reserve) 3 + 1 (reserve) 4 + 2 (reserve) 5 + 3 (reserve) 6 + 2 (reserve)
MPPT modules 1 2 + 1 (reserve) 3 + 1 (reserve) 4 + 2 (reserve) 5 + 3 (reserve) 6 + 2 (reserve)
AC RECTIFIER
Input voltage range 380 V ± 20% three-phase
Rated frequency 50 Hz / 60 Hz ± 5 Hz (settable)
Power factor 0.8
Floating charge voltage (25℃) 410 V ± 1%
Equalizing charge voltage (25℃) 415 V ± 1%
Max. charging current 12 A 25 A 38 A 50 A 75 A 167 A 208 A 250 A
INVERTER
Inverter voltage 380 Vac three-phase + N+PE
Phase voltage 220 / 230 / 240 Vac (settable)
Output voltage precision ± 1%
Transient voltage range ± 5%
Transient recovery time 20 ms
Rated frequency 50 Hz / 60 Hz ± 1 Hz (settable)
Frequency tracking range 50 Hz / 60 Hz ± 3 Hz
Peak factor 3 : 1
Waveform Sinusoidal
Waveform distortion ≤ 3% (linear load)
Voltage unbalance ± 3% (100% unbalanced load)
Overload ≥ 105% ~ 110% for 1 h; ≥ 110% ~ 125% for 10 mins; ≥ 125% ~ 150% for 1 min; ≥ 150% shut down in 10 s; ≥ 200% shut down immediately;
Short circuit Current-limiting, shut down immediately until the user start up
Max. efficiency ≥ 90% ≥ 91% ≥ 92% ≥ 93%
BYPASS
Rated voltage 380 Vac three-phase + N+PE
Voltage range ± 20%
Rated frequency 50 Hz / 60 Hz ± 5 Hz
Max. current 19 A 38 A 57 A 76 A 114 A 152 A 190 A 228 A
BATTERIES MANAGEMENT
EOD voltage settings 1.58 Vdc ~ 1.83 Vdc (settable), 1.75 Vdc (default)
Staggering DOD (Depth of Discharge) settings 1.85 Vdc ~ 2.1 Vdc (settable), 1.89 Vdc (default)
Charging current settings Factory default 0.15 C10; 0.07 ~ 0.3 C10 (settable)
Battery management Auto-transfer between equalizing charge and floating charge; Auto- temperature compensation of batteries
TRANSFER TIME
Inverter – Bypass 0 ms
Bypass – Inverter 0 ms
COMMUNICATIONS
Remote control Inverter startup, shutdown, abnormal clearance, EPO, battery self-test
Communication interface RS232, RS485, SNMP (optional)
Dry contacts output Bypass input abnormal, rectifier input abnormal, system fault, system alarm, low battery, output overload, fan fault, generator ON / OFF
OTHERS
Operating temperature 0℃ ~ 40℃
Max. relative humidity 90% (non-condensing)
Max. altitude 1000 m at rated power (derating 1% for each additional 100 m); Max. 4000 m
Noise level at 1 m ≤ 65 dB (varies with loads and temperature)
IP rating IP20
Dimensions (W × D × H) (mm) 450 × 840 × 1100 600 × 700 × 1750 960 × 800 × 1700
Packaged dimensions (W × D × H) (mm) 530 × 920 × 1140 690 × 790 × 1850 1040 × 890 × 1750
Weight (kg) 230 245 380 430 515 760 800 860