String Grid-Tied PV Inverter BluE-G 3000D / 3600D / 4000D / 4200D / 4600D / 5000D / 6000D

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Item specifice:

Output Power: 3000W/3600W/4000W/4200W/4600W/5000W/6000W Inveter Efficiency: 97.70%-98.30% Output Voltage(V): 230
Input Voltage(V): 600 Output Current(A): 14.4A-26A Output Frequency: 50Hz / 60Hz±5Hz

Product Description:

KSTAR BluE Power Your Green Life

Product Description:

Max. PV voltage up to 600V DC/AC ratio up to 1.5

Type II DC SPD/Type III AC SPD IP65 protection

High efficiency up to 98.3% Smaller and lighter

Compatible for big capacity PV panel WiFi / 4G Plug optional

One Stop Solution Compatible with any type of Demand 

Our BluE series covers single phase 1 to 6kw, three phase  3-25kw and up to 20kwh Energy Storage System. This range  is predominantly designed for modern house and small  commericial energy demands. 

One App to monitor your power flow for different systems; 

One Call for pre-sales training & after-sales service;

Technical Specifications:

MODELBluE-G 3000DBluE-G 3600DBluE-G 4000DBluE-G 4200DBluE-G 4600DBluE-G 5000DBluE-G 6000D
Max. DC Voltage600Vdc600Vdc600Vdc600Vdc600Vdc600Vdc600Vdc
Nominal Voltage380Vdc380Vdc380Vdc380Vdc380Vdc380Vdc380Vdc
Start Voltage100V100V100V100V100V100V100V
MPPT Voltage Range80V-560V80V-560V80V-560V80V-560V80V-560V80V-560V80V-560V
Number of MPP Tracker2222222
Strings Per MPP Tracker1111111
Max. Input Current Per MPPT15A15A15A15A15A15A15A
Max. short-circuit Current Per MPPT18A18A18A18A18A18A18A
Nominal AC Output Power3000W3600W4000W4200W4600W4600W4600W
Max. AC Apparent Power3000VA3960VA4400VA4620VA5060VA5500VA6000VA
Nominal AC Voltage230V L-N230V L-N230V L-N230V L-N230V L-N230V L-N230V L-N
AC Grid Frequency Range50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz50Hz / 60Hz±5Hz
Max. Output Current 14.4A17A19A20A22A24A26A
Power Factor (cosφ)0.8 leading to 0.8 lagging
THDi<3%< td="">
Max. Efficiency98.10%98.10%98.30%98.30%98.30%98.30%98.30%
Euro Efficiency97.70%97.70%97.90%97.90%97.90%97.90%97.90%
Protection devices
DC switchYesYesYesYesYesYesYes
Anti-islanding ProtectionYesYesYesYesYesYesYes
Output Over CurrentYesYesYesYesYesYesYes
DC Reverse Polarity ProtectionYesYesYesYesYesYesYes
String Fault DetectionYesYesYesYesYesYesYes
Surge ProtectionDC Type III;AC Type III
Insulation DetectionYesYesYesYesYesYesYes
AC Short Circuit ProtectionYesYesYesYesYesYesYes
General Specifications
Dimensions W x H x D 380*380*150mm
Operating Temperature Range–25℃~+60℃
Cooling TypeNatural
Max. Operation Altitude≤4000m
Max. Operation Humidity0-100%
AC Output Terminal TypeQuick Connector
IP ClassIP65
Communication InterfaceRS485/WIFI/4G
Certification & StandardEN/IEC62109-1/2;IEC/EN61000-6-2;IEC/EN61000-6-4;IEC61683;IEC60068;IEC60529;IEC62116;
IEC61727;EN50549-1;AS 4777.2;NRS 097;VDE-AR-N-4105;VDE 0126-1-1;CEI0-21;G98;G99;C10/C11;TED749;

Q:How the output voltage of the PV inverter and the grid-connected voltage are determined

Inverter is the DC power (battery, battery) into alternating current (usually 220V, 50Hz sine wave). It consists of inverter bridge, control logic and filter circuit. Widely used in air conditioning, home theater, electric wheel, power tools, sewing machines, DVD, VCD, computer, TV, washing machine, range hood, refrigerator, video recorders, massage, fan, lighting and so on. In foreign countries

Q:Installation and maintenance of photovoltaic grid - connected inverter

only when the local power sector permission by the professional and technical personnel to complete all the electrical connection before the inverter can be connected.

Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?

Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.

Q:After the PV inverter, how to achieve the same period before the network?

Solar panel simulator: with MPPT function, simulated morning, noon, afternoon, evening, rainy weather, solar panels produced under different conditions in different voltages.

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:Photovoltaic grid-connected inverter without DC emc how will happen

Solar photovoltaic power generation technology is the use of solar cells, the photovoltaic effect of semiconductor materials, solar radiation can be directly converted into a new type of power generation system, solar energy is a radiant energy, solar power means --- to direct conversion of sunlight Into electricity,

Q:What is the difference between low voltage grid connection and medium voltage grid connection?

For photovoltaic power plants when the power system accidents or disturbances caused by photovoltaic power plant grid voltage drop, in a certain voltage drop range and time interval, the photovoltaic power plant can ensure that non-off-line continuous 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:PV grid-connected inverter and independent inverter in the control of what is the difference

The independent inverter in the output voltage phase amplitude of the frequency control is initially set good. Independent inverter, you should refer to off-grid inverter, do not need to consider the grid situation.


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Q:The working principle of photovoltaic grid - connected inverter
Inverter will be converted into alternating current DC, if the DC voltage is low, then through the AC transformer boost, that is, the standard AC voltage and frequency. For large-capacity inverter, because the DC bus voltage is high, AC output generally does not require transformer boost that can reach 220V, in the small and medium capacity of the inverter, because the DC voltage is low, such as 12V, 24V, It is necessary to design a boost circuit.
Q:What are the methods of photovoltaic grid-connected inverter control
Sine wave output inverter control integrated circuits, sine wave output of the inverter, the control circuit can be used microprocessor control, such as INTEL company produced 80C196MC, Motorola produced MP16 and MI-CROCHIP company PIC16C73 and so on, these single-chip microcomputer has a multi-channel PWM generator,
Q:In a photovoltaic grid-connected project, the role of the inverter is to convert the voltage into AC 220V or 380V for the grid, since the transformer will raise the voltage again
Unless the power is not issued for their own use, is to be sent to other areas, it needs to boost, such as the western region of those large power stations
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 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:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Off-grid inverter is equivalent to their own to establish an independent small power grid, mainly to control their own voltage, is a voltage source.
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.
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:How the output voltage of the PV inverter and the grid-connected voltage are determined
DC voltage and AC side voltage does not matter, the general PV inverter AC output is 400V / N / PE. With no isolation transformer and output voltage does not matter, grid-connected inverter is the regulation of current, and network voltage depends on the grid voltage. And the grid before the inverter will detect the grid voltage, meet the conditions will be network.

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