PV Inverter Sunmax D 3000/4000/5000

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Shanghai
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TT OR LC
Min Order Qty:
5 watt
Supply Capability:
3000 watt/month

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Product Description:

The Sunmax D 3000/4000/5000 series are applicable to rooftop installation and small scale photovoltaic grid-connected power plants. Their rated output powers are 3 kW, 4kW, 5 kW respectively. This series are transformer-less in design and have a wide range of MPPT voltage. Their maximum conversion efficiency and MPPT tracking accuracy reaches 97.6 % and 99.5 % respectively. The maximum DC voltage reaches 580 V. The series have dual MPPT trackers, providing maximum flexibility for solar plants. The series adopts the latest technology, supports reactive power adjustable and meets the VDE-AR-N 4105 standard.

Characteristics

Dual MPPT with tracking efficiency over 99.9%

Supporting reactive power adjustable

Unit noise less than 30Db

Current harmonic less than 3%

Design features:

Allows access to third party monitoring system: Solar-log, Solar –man, Taoke, etc.

Equipped with active / inactive way to adjust the design instruction

Single / dual MPPT design

IP65 protection class to meet outdoor installation requirements

Transformer-less design

Units have built-in leakage current monitoring devices

Suspension design, installation is simple

Man-machine interface (LCD) in English, Italian, German languages

Man-machine interface (LCD) regulation parameters can be set making installation easy

Total digital design.


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Q:Grid-connected inverter is generally divided into photovoltaic power generation grid-connected inverter, wind power grid-connected inverter, power equipment and grid-connected inverter and other power generation equipment power generation inverter.
Grid-connected inverter is generally used with large-scale photovoltaic power plant system, a lot of parallel PV string is connected to the same set of inverter DC input, the general power of the use of three-phase IGBT power module, power
Q:What is the difference between a PV inverter and a solar inverter?
The main component of the inverter is the three-phase bridge converter. The main purpose of the grid-connected inverter is to change the power to DC and change the AC power. The main purpose is to improve the power quality (because the wind power generation is very large
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
The difference is that the current at low voltage and the grid is large, the current is small when the voltage is small, followed by the low voltage crossing parameter setting problem (such as PV inverter integrated with inverter and low voltage crossing function, not all photovoltaic inverter
Q:Is the PV inverter a current source or a voltage source?
According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter.
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:The function of photovoltaic grid - connected inverter
In general, single-phase h-bridge is a common configuration of dc / ac-level, but can also be used in three-phase and other configurations.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
The solar grid-connected inverter is not connected to the grid and can not be directly connected to the load to supply power to the load because there is no voltage.
Q:What is the PV inverter starting voltage
sine wave becomes narrower and the voltage width in the center of the sine wave is widened and the switching element is always operated in a direction at a certain frequency in a half cycle, A pulse wave train (pseudo sine wave). Then let the pulse wave form a sine wave through a simple filter
Q:Photovoltaic grid-connected inverter problem
The first zero line is the AC output. Any AC output of the inverter will have zero line, whether it is isolated or non-isolated. Isolation is the safety of high voltage inverters and regulators. 50KW above the inverter almost with the transformer.

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