Off-Grid Solar Inverter 3KW-8KW CE Approved AAA Quality with Best Price

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Product Description:

Off-Grid Solar Inverter 3KW-8KW    

 

EA-GF series products are on the basis of green energy use and equipment electricity need for remote area, combing the electricity characteristics of household appliances, communication station equipment and computer peripheral equipment. They have the function of energy conservation and environment protection. They adopt MCU control technique, having various kinds of function such as multi-setting mode, MPPT control, voltage stabilization on line, short-circuit protection, inverter frequency adaptive, output overload, battery charging management, monitoring etc. With display of LCD and LED, all the parameters and running status could be visible. Intelligent monitor is available via RS232 &USB connecting with PC, while remote control via RS485 &SNMP. EA-GF series products are the ideal power supply delivered with excellent performance, high stability, high reliability and high practical applicability

   

 

● Multi-setting
PV priority mode or AC priority mode
Choose the charging current based on the configured capacity of the battery
● High reliability: Double MCU digital control
Independent MPPT (Maximum Power Point Tracking) control microprocessor system 
Independent inverter microprocessor control system 
● Isolated and pure sine wave technology
● LCD+LED display
● Wide input range
● High-speed synchronous conversion
● Friendly alarm system 
● Online protection function
● Frequency auto adaptive
● Intelligent No-load auto shutdown technology (optional)
● Intelligent monitoring (RS232, USB, or SNMP card, optional)

 

 

Model

GF3000

GF4000

GF3000

GF5000

GF6000

GF8000

Power

3KW

4KW

3KW

5KW

6KW

8KW

Battery Voltage

96Vdc

192Vdc

Working Mode

PV priority / AC priority optional

PV

MPPT Voltage Range

96Vdc - 200Vdc

192Vdc - 400Vdc

Max. Charge Current

10-60A

10-40A

10-60A

PV Panels Configuration(Suggestion)(Vmp)

120-142Vdc

240-284Vdc

PV Panels Configuration(Suggestion)(Imp)

≤60A

≤40A

≤60A

Conversion Efficiency

≥ 98 %

Display

Panel Indicator

LCD+LED Panel display

AC Mode

Input Voltage Range

165Vac- 275Vac

Input Frequency Range

40-70 Hz (auto transfer to battery mode, if beyond this range)

Output Voltage Precision

220Vac± 5%

Input Power Factor

≥0.8

Max. Efficiency

88% (inverter on)

Overload

110% transfer to bypass in 255s,120% go to bypass in 60s, 150% go to bypass in 10s.

Max. Charging Current

8A

12A

Short Circuit Protection

Electronic limited current output or turn bypass, air breaker protection

Inverter Mode

Output Voltage

220Vac± 5%

Output Frequency

50 Hz / 60Hz ± 1% Frequency self-adjusted

Output Power Factor

1

Distortion

≤ 5% Linear load

PV-AC Transfer Time

0ms

Max.Efficiency

≥92%

Overload

110% transfer to bypass, in 255s or shut down,120% go to bypass or shut down in 60s, 150% go to bypass or shut down in 10s.

Eco Mode(Optional)

When Load < 5%, system will turn to bypass power supply (utility) in 1min

Short Circuit

Electronic limited current output, turn the bypass or system to be automatic shutdown

Alarm

AC Fails

1/4s; automatic sound elimination after 40s

Battery Low Voltage

5/1s

Overload

1/1s

Communication (Optional)

Communication Interface

RS232 / USB / RS485 / SNMP

Dry Contact

PV failure、battery low-voltage、overload、bypass、inverter failure、

remote start generator dry contact signal

Others

Output Connection

Terminal blocks

Surge Protection

Optional

EMC

Accord with EN62040-2:2006;EN61000-3-2:2006; EN61000-3-3:2008

IP Class

IP20

Ambient Temperature

0℃ ~ 40℃

Ambient Humidity

10% ~ 90%(Non Condensed)

Noise

≤ 50dB

Working Altitude

2000m (Every 100m increase derating 1%)

Dimension (WxDxH)mm

560×265×725


Packing Dimension (WxDxH)mm

662×360×905

Weight(kg)

76

80

60

67

69

85

Packing Weight(kg)

85

89

69

76

78

94

 

·         Q. What is an UPS and What it is for ?

An uninterruptible power supply (UPS) is a device that allows your computer or telephone switch or critical equipement to keep running for at least a short time or longer time when the primary power source is lost. It also provides protection from power surges, spikes, brownouts, interference and other unwanted problems on the supported equipment.

·         Q. How long the UPS to run when power goes?

This can take 3 paths.
1.You can pick a UPS that is rated for pretty much the full VA you need so it will be running at 100% of capability and will thus last 'n' minutes.
2.You can pick a UPS that is rated at a much higher VA value than you really need so, for example, is running at 50% of capability and will thus last for longer than the UPS from option 1.
3You can use extra external battery packs to run for longer. If charging capability allows, the more and the bigger batteries you take with, the longer time UPS runs. 
or using a generator after about 6 hours, it will be more cost-effective, with a short runtime UPS to bridge the generator start-up gap.

 

 

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Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Grid-connected inverter can be operated locally through the LCD screen, or through remote monitoring with dedicated monitoring software.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
by means of energy converters can be converted into electrical energy. The process of converting light energy directly into electrical energy is precisely the response to photovoltaic effects. Without the need for any other mechanical parts, the energy in
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
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.
Q:PV grid-connected inverter and independent inverter in the control of what is the difference
Photovoltaic grid-connected inverter is the assembly of the DC into AC power for the use of load, or do not use the load, the inverter after the AC power to the city power grid, when the electricity outage, the inverter will automatically
Q:Is the PV inverter a current source or a voltage source?
Inverter is a kind of semiconductor device composed of power adjustment device, mainly used for DC power into AC 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: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 PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters called low-voltage crossing ability, you can do PQ adjustment
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:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Hybrid inverter is not a clear concept, but now both energy storage dual-grid inverter does have the ability to receive control system,

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