When alternating current flows in the circuit then it is converted into direct current and stored in the battery. Now , if main line is off then inverter converts that stored direct current (dc) into alternating current and electronic appliances work.
Batteries store energy in the form of direct current, while appliances in our homes need alternating current. So the inverter converts stored energy into alternating current as and when needed to power the house. So, in case of a power outage, this device can be used as a backup.Inverters are also called AC Drives, or VFD (variable frequency drive). They are electronic devices that can turn DC (Direct Current) to AC (Alternating Current). It is also responsible for controlling speed and torque for electric motors.
An inverter is energy saving technology that eliminates wasted operation in air conditioners by efficiently controlling motor speed. ... Compared to non-inverter type air conditioners, air conditioners with inverters have less power loss and can save in energy.If the converter and inverter functions are all combined in one unit, just leave it on unless keeping the batteries from completely discharging is important, than shut the inverter off. Converting 12V battery voltage to 120V AC power discharges batteries, it does not change a battery.
You would need an inverter with a continuous rating of approximately 1500 watts and with a peak/surge rating of approximately 3500 watts. It is always advisable to build in a safety factor by overrating the continuous rating by 20 – 25% .
A power inverter, or inverter, is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC).The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of “converters” which were originally large electromechanical devices converting AC to DC.
The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.
A power inverter can be entirely electronic or may be a combination of mechanical effects (such as a rotary apparatus) and electronic circuitry. Static inverters do not use moving parts in the conversion process.
Power inverters are primarily used in electrical power applications where high currents and voltages are present; circuits that perform the same function for electronic signals, which usually have very low currents and voltages, are called oscillators. Circuits that perform the opposite function, converting AC to DC, are called rectifiers.