Xtend Solarmi GF-SUN-1000G2H
GridFree original GWL GTIL inverter with a power of 900 W operating in the input voltage range of 45-90 V (DC) with an integrated limiter to prevent overflows into the public grid. Thanks to the integrated MPPT controller, the inverter converts the maximum energy produced by photovoltaic panels to 230 V (AC) . The inverter stands out with its extremely low internal consumption of only 4.6 W!
The GridFree inverter with limiter is a revolutionary solution for grid-connected photovoltaic power plants , which works similarly to other GridFree microinverters, but can also limit its own power according to current consumption, thus completely preventing overflows into the public grid.
These inverters are designed for indoor use , and in addition to the classic terminals for connecting solar panels or batteries and an output for connecting to the grid, the inverter also has a current probe connector for the internal limiter.
On the inverter's clear display you can monitor:
- Current inverter output from solar panels/batteries
- Power supplied from the grid
- DC input voltage
- Inverter temperature
- Mains voltage
- Date and time
- Daily production schedule
- Inverter settings
There are also specific settings for powering the inverter from batteries (instead of solar panels). These are the settings for the operating voltage at the input (lower limit) and the maximum power delivered by the inverter.
The GridFree inverter operates in the input voltage range of DC 45-90 V and its power is 900 W (peak 1000 W) . The output from the inverter is then AC 230 V , which is connected between the main circuit breaker with the electricity meter and the circuit breakers of the individual circuits. The inverter therefore transfers the power from the panels (or suitable batteries) to the home distribution. Your appliances will then consume energy produced primarily from your power plant. If the power of your power plant is not enough at a given moment, the connected public network will cover the shortfall. By installing a current probe to the limiter , you will protect your system against unwanted overflows in the event that your power plant is capable of producing more energy than your appliances require.
The inverter does not operate in island mode, i.e. it requires a connection to the public distribution network for its function. As soon as a power failure occurs, the inverter switches off immediately.
The inverters are certified for sale and use in the EU. They meet the criteria of EMC, LVD, RoHS certifications. The inverters comply with the EN50549-1 standard.
A very effective and easy solution for independent electricity production while maintaining connection to the distribution network. An ideal way to reduce electricity costs. Slow down your electricity meter too! (By reducing consumption from the network.)
Connecting the inverter to a solar system is simple:
Without battery:
With battery:
For more information on connecting to a battery, seeel="noreferrer noopener"> technical support .
It is possible to connect multiple solar panels to the inverter so that their real power matches the inverter's power and at the same time so that the voltage of the entire panel system is within the range in which the given inverter model operates.
The package includes a current sensor with a cable length of 3 m and a 230 V connection cable. Download the operating instructions in the related documents below.
For correct current probe measurement, we do not recommend extending the sensor cable.
Typical examples of microinverter use and more information can be found here .
GridFree technology – overview of links, articles and information
www.i4wifi.cz/gridfree + technical support
BASIC SPECIFICATIONS
Continuous power: 900 W (1000 W peak)
Input voltage: DC 45-90V
Output voltage: AC 230V (50Hz)
Dimensions: 322 x 196 x 88 mm
Weight: 3.6 kg
Color: blue - black
Mode of reducing self-consumption from the distribution network 1:
The SUN inverter with external accessories listed in the documentation meets the requirements for parallel connection to the Czech grid (RfG).
The most common use is to reduce self-consumption from the distribution grid by connecting an inverter anywhere between the distribution grid and the point of consumption.
Mode of reducing self-consumption from the distribution network 2:
When using batteries and a limiter, the energy obtained from the sun can be used even when it is not shining. If the energy produced is not enough for current consumption, the remaining part is automatically replenished from the grid. Without a limiter, the system can operate in the distribution grid as a production plant (photovoltaic power plant) in the surplus energy sales mode.
The inverters can also be used to increase the available power in off-grid systems, e.g. in combination with Victron off-grid inverters, in "AC coupling" mode (coupling with the off-grid inverter's AC output instead of the distribution grid).
Single-phase or three-phase system with battery and limiter:
Due to the possible accumulation, this mode is particularly suitable for using all generated electricity for own consumption.
AC connection with hybrid or island inverter:
If the inverter is independent of the AC grid and is intended for AC coupling (e.g. VE Multiplus), it is possible to connect a SUN inverter with a limiter to its AC output. The output does not affect the Multiplus inverter mode itself (battery charging), but the total output power is increased. The output of the SUN inverter in AC coupling must be less than the outputp of the island system to which it is connected. Charging the battery via the AC route via the Multiplus (from its input or output side) is only possible after adding additional protection/communication elements or functions and their correct settings.
Applications in compliance with RFG standards [EU 2016/631 (RfG NC)]:
The products GF-SUN-1000G2, GF-SUN-2000G2-T, GF-SUN-1000G2H and GF-SUN-2000G2 with additional accessories meet the requirements of Commission Regulation EU 2016/631 (RfG NC) . The requirements can be specified according to regional distribution networks.
The power supply from the production module is interrupted by the KM1 contactor, which is switched by connecting the N wire to its coil from the switchgear control device. Connecting the N wire closes the contactor and disconnects the production module from the distribution network via its power break contact.
Delayed connection of the production module after a power failure is ensured by the KA1 time relay. After the loss of power, the KA1 relay galvanically disconnects the production module from the distribution network (failure point KM1). After the power is restored, the KA1 relay reconnects the production module after a set time.
