Compared with the traditional off grid inverter system, the biggest difference between the new off grid inverter system and the traditional off grid inverter system is that there is no need for batteries or a small amount of batteries, so as to reduce the initial investment cost, make full use of new energy to generate electricity, and achieve the purpose of reducing the use of grid electricity or diesel generator. The new off grid inverter system consists of solar panels, combiner box, new off grid inverter and other components.

The electric energy generated by solar panels is directly connected to the new-type off grid inverter after converging through the combiner box, and then DC is converted to AC through the new-type off grid inverter for the use of load equipment.

The diesel engine / power grid is connected through the AC input terminal of the new off grid inverter, and it will participate in the inverter after rectification. When the power supply of solar panel is insufficient, it will automatically switch and supplement, and the switching time is 0ms.

In the system with a small number of batteries, some solar panels are connected to the controller to charge the batteries. The battery plays a supporting role in the switching process between solar panels and diesel generator, so as to avoid power failure of the system during the switching process.

In some application, the new off grid inverter can also be used in wind power, hydropower and other systems.

• The drive protection is Mitsubishi inner works, and the perfect drive protection circuit ensures the reliable operation of IGBT.
• Fast dynamic response (Patented technology): Double closed-loop feedback circuit, internal loop current environmental protection certificate non-distorted non-linear load waveform; external loop voltage environmental protection certificate sudden load voltage drop ≤ 1%, reaction speed ≤ 2 ms.
• Reasonable combination of components, inversion efficiency ≥ 90%.
• Output frequency 50/60Hz switching to meet different device power requirements, other frequencies can be customized.
• Built-in isolation transformer with pure sine wave output and resistance, induction, capacitance and mixed load.
• Reasonable airway design and high heat dissipation efficiency.
• Strong carrying capacity, can withstand 200% power impact for 10 seconds.
• Friendly interactive interface, touch-display integration.
• Display DC input voltage, AC output voltage, frequency, power, temperature, status indication and fault indication.
• Digital technology design, high adjustability, DC over/under voltage, DC under voltage recovery, output over/under voltage, output overload can be set within a certain range.
• Wide voltage input range, 48-800V DC input, customizable input voltage.
• Full and efficient protection function, to protect against damage under any load, with input connection back protection, input over/under voltage protection, output under/voltage protection, IGBT drive protection, output over load protection, current limit protection, overheat protection, three-phase unbalance protection.
• Accurate switching of solar panels, batteries and grid power to maximize energy utilization.
• The generator start dry contact can start the generator in advance before the power supply is under voltage, and the start voltage can be set.
• Optional: Bypass input.
• Communication: RS485, USB, WiFi, GPRS, CAN. Data can be accessed to the Internet of Things, monitored remotely, and queried for historical data.
• Communication protocol: Modbus RTU.