Off-grid Inverter
Best Off-grid Inverter Selection
Solutions for Off Grid System
Can partially or completely replace diesel generator.System Capacity: 3-50kW
- *Off-grid system is a good solution for the area where is no electricity, shortcomings or with unstable power.
- *Advantage of photovoltaic power:
- * economic
- * clean
- * environmentally friendly
- * noise-free
Schematic For Off Grid System
Solar Input:
- 60-145v/ 100-480v(two models)
- 2MPPT
- 4500w/6000w
Off-grid output:
- 5000w normal
- 115% overload 10 seconds
- 150% overload 5 seconds
- 10000VA inrush power
- can be parallel and extend to 50kW
Battery:
- no limitation for battery quantity
- no limitation for lead-acid or Li-battery
- Advanced battery management
AC Side:
- Support utility & generator input
Schematic-Interface
1. Battery Cable Interface
2. Solar Input String 1
3. Solar Input String2
4. Off Grid Output
5. AC Grid Input
6. Generator Input
7. Off grid Output Switch, when turn off it, there will be no output in the output terminal, but the system can still charge the battery
8. System Power Switch, the whole system will shutdown if the switch is off.
9. Battery communication cable
10. Parallel cable communication interface
11. Temperature sensor input
12. Balance resistor PIN for paralleling communication
13. Wifi plug in interface
14. Dry contact/Genset control port
Off-grid Inverter two Working Modes
SNA5k serial off-grid inverters can support the system to work as back-up power or a replacement for a diesel generator. Since the inverter support paralleling function, the capacity of the system can range from 3kW to 50kW, The inverter support several working modes.
Pure off-grid working mode: working as traditional off-grid inverters, can set the output to utility first, battery first, or solar first.
Hybrid working mode: working as a hybrid, support solar and utility jointly take the load, can set to the self-consumption mode or charge priority mode.
Off-grid Inverter 4 Features
1.Features--Wireless Paralleling Function
| 10pcs or even more paralleling extend to 50kW | VS | 6/9 pcs paralleling max |
| Can connect battery as one big group bank or seperately battery group; Keep same SOC for groups | Can only connect to one big battery bank | |
| Do not require inverters to battery same cable length | Require inverters to battery same cable length | |
| No current share cable, same esay communication cable connection | With current share cable, different cable connection for different system |
2.Features--Grid/Battery/PV Jointly Take the Load
| For traditional off grid inverter, load was taken either by battery/PV or by AC grid , which will make low usage of solar power | VS | For Sonar Off grid inverter, you can use PV and utility take load and keep battery full at the same time |
3.Features--Independent Generator Input
* Independent generator input, free of ATS outside
* Flexiable control of generator
- Battery level/battery voltage can be set to turn on the generator
- Battery level/battery voltage can be set to turn off the generator
4. Features--Battery Management
* Support Pylon/Weco/Dyness/Aoboet Li-ion battery
* One cable connection, do not need any external box for Li-ion battery communication
* Support battery equalization function to activate the battery period
* Support Battery wake up function
Monitor System Performance
* Multi-level management: Administrator-->Three levels of distributors-->Installer-->Enduser
* Easier to use(Register, set wifi password), only three steps
* Local connection support
* Remote monitor, setting, and firmware update.Support Web/IOS/Andriod
| Output Data | SNA 3000 WPV | SNA 4000 WPV | SNA 5000 WPV |
| Reted Power | 3000W/3000VA | 4000W/4000VA | 5000W/5000VA |
| Parallel Capacity | Yes | Yes | Yes |
| Nominal Output Voltage | 230/240,Split phase 220/110Vac* | 230/240,Split phase 220/110Vac* | 230/240,Split phase 220/110Vac* |
| Nominal Output Frequency | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Surge Power | 6000VA | 8000VA | 10000VA |
| Switch Time | 10ms | 10ms | 10ms |
| Wavefrom | Pure sine wave | Pure sine wave | Pure sine wave |
| Battery Data | |||
| Battery Type | Lithium/Lead-Acid | Lithium/Lead-Acid | Lithium/Lead-Acid |
| Nominal Voltage | 51.2V/48V | 51.2V/48V | 51.2V/48V |
| Max.Charge Voltage | 59V | 59V | 59V |
| Solar Charge Data | |||
| Max.Recommended PV Power | 6000W | 6000W | 6000W |
| MPPT Tracker | 2 | 2 | 2 |
| Max.PV Open Circuit Voltage | 480Vdc | 480Vdc | 480Vdc |
| MPPT Voltage Range | 100-385Vdc | 100-385Vdc | 100-385Vdc |
| Max.Solar Charge Current | 100A | 100A | 100A |
| Max.MPPT Efficiency | >98% | >98% | >98% |
| Parallel MPPT Charger | Yes | Yes | Yes |
| AC Charger Data | |||
| Nominal Voltage | 230Vac | 230Vac | 230Vac |
| AC Voltage Range | 110-280Vac | 110-280Vac | 110-280Vac |
| Max.Charge Current | 60A | 60A | 60A |
| Frequency Range | 50Hz/60Hz(Auto Sensing) | 50Hz/60Hz(Auto Sensing) | 50Hz/60Hz(Auto Sensing) |
| General Data | |||
| Dimensions(W/H/D) | 330/504/135mm | 330/504/135mm | 330/504/135mm |
| Weight | 14Kg | 14Kg | 14Kg |
| Protection Degree | IP20 | IP20 | IP20 |
| Relatively Humidity | 5%-95%Relative Humidity(No-condensing) | ||
| Operating Temperature | 0-50℃ | 0-50℃ | 0-50℃ |
| Storage Temerature | -15℃-60℃ | -15℃-60℃ | -15℃-60℃ |
| Interfaces | |||
| Display | LCD+LED | LCD+LED | LCD+LED |
| Lithium Battery Communication | CAN/RS485 | CAN/RS485 | CAN/RS485 |
| RS485/Dry Connector | YES/YES | YES/YES | YES/YES |
| Wifi/GPRS | YES/YES | YES/YES | YES/YES |
| Warranty | 2years | 2years | 2years |
