12kW Pure Sine Wave Off Grid Solar Inverter
12000 watt without battery 3 phase off grid inverter with MPPT function, two kinds of start mode: step-down voltage start and variable frequency start. Low frequency pure sine wave inverter for solar power system, converts 120V/ 192V DC to 208V/ 400V/ 480V AC.
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High quality sine wave AC output off grid solar power inverter, no battery storage system, in the sunshine, the solar panels generate energy through the off grid inverter convert DC power to AC power.
Features
- Two kinds of start mode: Step-down voltage start and variable frequency start. Customers can set start mode according to the type of their load.
- The output voltage can be set between -40 % to +20 % of rated voltage. And the output voltage is very accuracy ±1%.
- Pure sine wave output. With good dynamic response less than 50MS, waveform distortion rate smaller, higher conversion efficiency and stable output voltage.
- Adopts black pure aluminum radiator, which confirms the best radiating performance.
- Powerful data display function. LCD can display the DC input voltage, output frequency, phase voltage, phase current, AC bypass input voltage, power consumption (kWH), time and date, temperature, fault code display.
- Wide input voltage can work without battery and solar charge controller, save more cost and with MPPT wide voltage input function, maximum use of solar power.
Parameter List
| Model |
ATO-OGI-12kW |
| Size (D*W*H) |
550*550*760mm |
| Weight |
165kg |
| Certificate |
CE, UL, SA, SAA, VDE |
| Warranty period |
12 months |
| AC Input |
Rated voltage |
AC input voltage is the same value as the AC output |
| DC Input |
Rated voltage |
96V/ 108V/ 120V/ 192V DC (can be customized) |
| Rated current |
63A @192V DC |
| AC Output |
Rated output power |
12kW |
| Output waveform |
Pure sine wave |
| Rated voltage |
208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 415V/ 460V/ 480V (optional) |
| Phase |
3 phase 4 wire+PE wire (single phase/ split phase can be customized, please contact us by email) |
| Rated phase current |
18A @380V AC |
| Frequency |
50Hz or 60Hz |
| Power factor |
>0.99 |
| Overload ability |
150%, 5 seconds |
| Efficiency |
>93% |
| Waveform distortion rate |
THD<3% |
| Dynamic response (0 to 100% load) |
5%, ≤50ms |
| Display |
LCD |
| Running mode |
Working continously |
| Electrical insulation properties |
2000Vac, 1min |
| Communication interface |
RS485 (optional), it can remote control the start/stop of the inverter and convey the data as below:
1. Input DC current
2. Input DC voltage
3. Output AC current
4. Output AC voltage
5. Power consumption (kWH)
6. Some fault information |
| Protection Function |
Protection |
Input reverse polarity, under voltage, over-voltage, output over-current, short circuit, overheating |
| Colling method |
Fan-cooled |
| Short-circuit protection |
No automatic recovery, need to restart the machine |
| Working Environment |
Noise (1 meter） |
≤50dB |
| Degree of protection |
IP20 (indoor) |
| Working altitude |
≤2000m |
| Working temperature |
-25~+55℃ |
| Relative humidty |
0~90%, non-condensing |
| Note |
The above parameters are for reference only, can be customized according to customer's requirement! |
Tips: The off grid solar inverter LCD has no display, how to solve this problem?
Fault analysis:
There is no battery current input. The inverter LCD power source is supplied by the battery.
Possible reason:
A: The battery voltage is not enough. When the battery is just delivered out of the factory, it is usually fully charged. However, if the battery is not used for a long time, it will be slowly discharged (self-discharge). The off-grid system has the voltage of 12V, 24V, 48V, 96V and so on. Some applications require multiple batteries in series to meet the system voltage. If the cable is not well connected, the battery voltage will be insufficient.
B: The battery terminal is reversely connected. The battery terminal has the positive and negative poles. Generally, the red is connected with the positive pole and the black is connected with the negative pole.
C: The DC switch is not connected or the switch has a fault.
Solution:
A: If the battery voltage is not enough, the system can't work and the solar energy can't charge the battery. Then, it is required to go to another place to charge the battery to over 30%.
B: If it is a problem of the circuit, please measure the voltage of each battery with a multimeter voltage gear. When the voltage is normal, the total voltage is the sum of various battery voltages. If there is no voltage, check whether the DC switch, terminal block, cable connector and so on are normal one by one.
C: If the battery voltage is normal, the wiring is normal and the switch is also turned on, but the inverter still has no display, it may be the problem of the inverter. Then, it is required to notify the manufacturer for maintenance.
Read more related blog: PV Off-Grid Solar System Troubleshooting