Can single phase inverter output 380V AC? Normally, single phase inverter cannot output 380V AC. The output voltage range of single-phase inverter is usually between 110V and 240V, which is determined by the fact that single-phase inverter has only one phase.
An inverter is electrical device that converts direct current (DC) into alternating current (AC), while single phase electricity refers to form of power transmission consisting of one phase line (live wire) and one neutral wire, which is the 220VAC (or 230V 240V) we use in daily life.
Three phase electricity means three phase alternating current(AC), is power source composed of three alternating potentials with the same frequency, equal amplitude, and phases that are 120° apart. These three phases are usually called phase A, phase B, and phase C, which are three live wires. Each phase has its own voltage and current waveform, and the phase difference between them is 120°. It is commonly used for industrial electricity 380V.
The output AC voltage range of single phase inverter is usually between 110V and 240V, which is determined by the fact that single-phase inverter has only one phase. Therefore, under normal circumstances, general single phase inverter cannot directly output 380V AC power.
However, with the continuous development of industry technology, inverters are also constantly iterating and updating. An inverter with parallel function has appeared on the market. Through the parallel connection between inverters, three phase AC power of 380V can be output. For example, Xindun HP PLUS+ series single phase high-frequency solar inverters can support single phase/three phase output. Through parallel connection, 380V output can be achieved, but at least 3 Xindun HP PLUS+ solar inverters of the same model need to be connected to output 380V. Since three phase electricity requires three live wires and one neutral wire, and single phase inverter can only provide one phase, more than three inverters are required to provide three live wires according to different combinations in the manual.
The three phase parallel connection of Xindun HP PLUS+ solar inverter is the following combination connection:
Three inverters are connected in parallel, one inverter per phase, 1+1+1 combination, and each of the three inverters provides one phase (live wire).
Four inverters are connected in parallel, two inverters in the first phase, and only one inverter in the second and third phases, 2+1+1 combination, one of which is connected by two inverters to provide a live wire, and the remaining two inverters each provide a live wire.
Five inverters are connected in parallel, two inverters in the first phase, the second phase, and one inverter in the third phase, 3+1+1 combination, one of which is connected by three inverters to provide a live wire, and the remaining two inverters each provide a live wire.
Six inverters are connected in parallel, there are two combinations, one is two inverters per phase, 2+2+2 combination, and three groups are connected by two inverters to provide a live wire. The second type is 3+2+1 combination with three inverters in the first phase, two inverters in the second phase, and one inverter in the third phase. Three inverters are connected to provide one live wire, two inverters are connected to provide one live wire, and one inverter provides one live wire.
Seven inverters are connected in parallel, with four inverters in the first phase and one inverter in each of the other two phases. The combination of 4+1+1 is provided by one live wire connected by four inverters, and two inverters each provide one live wire.
In addition to the three phase parallel output of 380V, the Xindun HP PLUS+ solar inverter can also be paralleled to expand power. The single-machine capacity of 5000W can be expanded to 10kW/15kW/20kW/25kW/30kW/35kW/40kW/45kW, and up to 9 units can be paralleled to meet the user's future needs for power expansion.
Xindun HP PLUS+ solar inverter adopts high-frequency design to provide higher conversion efficiency, with inverter conversion efficiency of up to 94%, and reduces no-load loss, thereby improving energy utilization efficiency. Pure sine wave output can adapt to various types of load equipment. The built-in mppt solar controller can be charged by solar and mains, intelligently allocated, and supports multiple charging methods. Solar/mains/generator can be charged. The stand-alone version can support battery-free operation mode to maximize the use of solar power generation. Support USB, RS232, mobile app (WIFI/GPRS) communication connection, allowing you to monitor and manage the solar system anytime, anywhere.
Therefore, single phase inverters can also output AC 380V, but they require specific models of single phase inverters with parallel function, such as Xindun HP PLUS+ single phase high-frequency inverters. At least three inverters of the same model and function are connected in parallel, and users can achieve three phase 380V output to meet the special application needs of various industrial and commercial projects.
