300 Watt Solar Micro Inverter, Grid-tie Inverter
Cheap and best DC to AC grid tie solar inverter with 300 watt rated output power, 24V/ 48V DC to 120V/ 230V AC smart micro inverter (wireless) for 300W 36V solar PV panel, built-in high-performance maximum power point tracking (MPPT) function, effectively capture and collect sunlight.
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300W MPPT solar grid tie inverter, micro inverter for sale, IP65 waterproof class, effectively prevent rainwater from eroding the surface. It adopts reverse efficient power transmission technology. Extra electricity is transmitted to the grid. Efficient use of the inverter to the power emitted. The AC output can be automatically switched to 120V or 230V according to the local grid voltage.
High performance maximum power point tracking (MPPT)
Reverse power transmission
Intelligent monitoring management
Input/output is fully isolated to protect the electrical safety
Multiple parallel stacking
Digital control system
Simplify maintenance (user serviceable)
Operation and maintenance costs low
Use the wireless 433MHz communication mode
Maximum input power
Output voltage mode
120/230V Auto switch
PV Open circuit voltage
Operating voltage range
24V/48V DC, range: 22-60V DC
Starting voltage range
Maximum working current
Output peak power
Rated output power
AC voltage range
AC frequency range
Number of branch connections
Static MPPT efficiency
Max output efficiency
Loss of power at night
Total current harmonics
Appearance and technical features
-40℃ to +65℃
Heat dissipation mode
Power transmission mode
Reverse transmission,Load priority
EN50081.part1 EN50082.Part1.CSA STD.C22.2 No.107.1
EN61000-3-2 EN62109.UL STD.1741
Power grid detection
DIN VDE 0126 IEEE STD.1547.1547.1 and 1547.A
Tips: Why is the starting voltage of the grid tie inverter higher than the minimum voltage?
In photovoltaic grid-tied inverters, there is a strange parameter, that is, the input starting voltage of the inverters, which is about 30V higher than the minimum operating voltage. For example, single-phase inverters, MPPT operating voltage is 70V to 550V, starting voltage is 100V. Many people wonder whether the grid tie inverters work or not from 70V to 100V. If it is working, but the inverters need 100V to start.
In fact, the reason why the starting voltage is higher than the minimum working voltage is based on the characteristics of photovoltaic modules. Before the solar inverter starts, the components do not work and are in the open circuit state. The voltage will be relatively high. When the inverter starts, the components are in the working state and the voltage will be reduced.
If three components are connected in series, when the sun shines in the morning, the open-circuit voltage may be 90V. If it starts at this time, it may only be 60V. If it does not reach the working voltage, the inverters will stop. Only when the open-circuit voltage exceeds 100V, if it starts at this time, the working voltage will exceed 70V, the inverters will work all the time.
After the solar inverters start up, it does not mean that the inverter will have power output immediately. The control part of the inverters, CPU, screen and other devices work first. First, the inverters are self-checked, then the components and power grid are detected. After no problem, the output of the inverters will only be achieved when the photovoltaic power exceeds the standby power of the inverters.