Pure Sine Wave Inverter/Power Inverter 500W DC-AC, DC/AC Inverter, DC 12V to AC 220V/230V,STI 500

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Description

STI series is a sine wave power frequency inverter which can convert 12V or 24V DC to 220VAC or 230VAC 50Hz based on full digital and intelligent design. The inverter can be applied in many fields especially for solar photovoltaic power system.

 


Features:

·Complete isolation-type inverter technology, noiseless output
·Adoption of advanced SPWM technology, pure sine wave output
·Dynamic current loop control technology to ensure inverter reliable operation.
·Wide DC input voltage range
·Excellent EMC design
·Low output harmonic distortion(THD≤3%)
·LED indicators display input voltage range, load power range, normal output & failure state
·Optional energy saving mode
·Wide working temperature range (industrial level)
·Continuous operation at full power

Pure Sine Wave Inverter/Power Inverter 500W  DC-AC, DC/AC Inverter, DC 12V to AC 220V/230V,STI 500

Protections:

·Output Short Circuit protection
·Overload protection
·Input reverse polarity protection
·Input low voltage protection
·Input over voltage protection
·Inverter abnormal protection
·Overheating protection



Specification:

Model

STI500-12-220

STI500-24-220

STI500-12-230

STI500-24-230

Nominal battery voltage

12V

24V

Input voltage range

10.5~16V

21~32V

Consumption no load(ON)

≤5W

≤6W

Consumption no load (Saving)

≤2W

≤2.5W

Output voltage

AC220/230V±3%

Continuous power

500VA

Power 10sec

750VA

Power 1.5sec

1000VA

Surge power

1600VA

Output mode

Single Phase

Wave form

Pure Sine Wave

Frequency

50Hz±0.2%

Distortion THD

( resistive load)

≤ 5%

≤ 2%

Efficiency at rated power

≥81%

≥87%

Max. efficiency

≥91%

≥93%

Dimension

325*187*112mm

Net  weight

            7.3kg

Working  

temperature

-20℃~ +50℃

Humidity

< 95%(non-condensation)

Altitude

< 5000m(Derating to operate according to IEC62040 at a height exceeding 1000 m)

 

FAQ

  1. Can a solar powered LED lighting without inverter?

Of course you can run lights without inverters. Both LEDs and incandescent lamps are quite happy on DC. And there are fluorescent ballasts that take a DC input (although they do have a sort of inverter inside). I have one in my shed and it has been working just fine for at least 15 years. It is very simple, easy and efficient. You can do away with the electrical code for wiring, lower you cost. Use less energy and lower the cost to install. In fact is we did this to power may of our day to day items we would also lower the demand for power. 

Keep in mind this goes against every manufacturer and government policy and you will be shut down, squashed and run out of town for even talking about this, or at least you used to. I am working on a way to use the current wiring in a home to have direct solar, batter bank lighting. By coming off the grid for your lighting and many other functions, a power outage would hardly make a difference to your home.

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Q:The working principle of photovoltaic grid - connected inverter
Full-bridge inverter circuit to overcome the shortcomings of the push-pull circuit, the power transistor to adjust the output pulse width, the output AC voltage RMS that changes. Since the circuit has a freewheeling circuit, even if the inductive load, the output voltage waveform will not be distorted. The disadvantage of this circuit is that the upper and lower arms of the power transistor are not common, so you must use a special drive circuit or use isolated power supply. In addition, in order to prevent the upper and lower arm co-conduction, must be designed to turn off after the conduction circuit, that must be set dead time, the circuit structure is more complex.
Q:How the output voltage of the PV inverter and the grid-connected voltage are determined
due to the higher penetration rate of the car to go out to work or travel can be connected with the inverter battery drive electrical and various tools work. The car inverter output through the cigarette lighter is 20W, 40W, 80W, 120W to 150W power specifications. And then a large number of power inverter power
Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
In addition to the function of converting DC current into alternating current, the inverter also has the maximum output tracking function (MPPT), overvoltage protection, short circuit protection, island protection, overheat protection, overload protection and DC grounding
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
PV grid-connected inverter in the grid before the inverter needs to determine the phase voltage phase frequency, the first phase-locked, in the grid and power generation.
Q:What is the PV inverter starting voltage
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid. According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter. For the inverter for the grid system, depending on whether the transformer can be divided into transformer-type inverter and transformer-free inverter.
Q:After the PV inverter, how to achieve the same period before the network?
It can automatically detect the generator and the grid frequency and voltage, in the frequency, voltage, phase are in line with the requirements of the grid to set the time before the release of the closing signal, so that it can be safely and securely connected.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
light is obtained by the electrons of the semiconductor device, thus generating electrical energy. This energy conversion of light energy into energy, that is, solar cells. Solar cells, like transistors, are made of semiconductors. Its main material is silicon, and there are some other alloys. High-purity silicon used in the manufacture of solar cells is subject to special purification. Solar cells as long as the sun or light exposure,
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
When the power grid failure or disturbance caused by the power supply and network voltage drop, in the voltage drop range, the power group can be uninterrupted through the inverter and network operation.
Q:Is the grid side of the grid and the inverter?
The grid load side of the grid is the grid. The inverter is an important part of the PV grid-connected system and can not be regarded as an external load. Photovoltaic power generation system is included in both grid and off-grid.
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
Inverter, a single failure, does not affect other operations, the impact on the grid is small, high reliability.

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