PV On-Grid Inverter GSG-50KTV from CNBM ,China

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Description:

 

CNBMSOLAR is a world-leading and Vertical integrated manufacturer of high-performance with Silicon,

Wafer, Cells, Modules, which convert sunlight into electricity for residential, commercial, and utility-scale

power generation.

        

The capacity of CNBMSOLAR is reach to 1GW, and make sure each year our shipment capacity is more

Than 700-800MWs, at the same time, we have set up the largest solar power station with our partner

in Ukraine.

       

CNBM is a Quality + Service oriented company with“Excellence at Each Step” approach, composed of

the finest components from TUV and IEC-certified partners around the world, CNBM modules consistently

undergo a variety of trials at the company’s Test & Development Centre, ensuring peak performance

capabilities. The company is committed to develop and provide the world with clean and renewable energy

to ease the energy shortages as well as human kind’s impact on the environment.

Data:

inputDC

 

MAX.DC.inputpowerKW

17.5

max.input  voltage(Vdc)

1000

max. input  current(A)

A:20/B:20

MPPTrange(Vdc)

430~830

Min.DC  voltage/start voltage(V)

170/220

Output(AC)

 

rated AC output  power(KW)

17

max.output  power(KW)

17

Rated voltage of  grid(Vac)

3/N/PE 230/400

rated grid  frequency(Hz)

50/60

THD

3%(rated power)

Power factor

0.9 leading~0.9  lagging

Max.AC  current(A)

25

phase  conductors/connection phases

3/3

Efficiency,safety and  protection

 

max efficiency

98.20%

euro efficiency

97.80%

MPPT efficiency

99.90%

overvoltage/undervoltage  protection

yes

DC isolation  impedance monitoring

yes

ground fault  protection

yes

grid monitoring

yes

DC linjection  monitoring

yes

ground fault  current monitoring

yes

general data

 

display

LCD

communication

ethernet/RS232/RS485

self-consumption  at night(W)

5

Pollution degree

protection  degree

IP65

cooling

Fan

operating  temperature range

under 20 ~ 60℃(Derating at 45℃)

operating humid  range

0-100%

isolation mode

transformerless

altitude(m)

<2000

standard  warranty

5

noisy

45

dimensions(w*H*D)  (mm)

520*730*243

weight(Kg)

55

 

PV On-Grid Inverter GSG-50KTV from CNBM ,China

FAQ:Could you introduce more about CNBM?

 

CNBM Group is short for China National Building Materials Group Corporation, which is established in 1984 with approval from the State Council

CNBM Group is the largest comprehensive building materials industry group in China

 

The Group has a total asset of over RMB 360 billion, more than 180,000 employees and 17  subsidiaries


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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:Installation and maintenance of photovoltaic grid - connected inverter
photovoltaic systems Power generation system used in the cable must be connected firmly, good insulation and specifications appropriate.
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: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 a PV inverter and a solar inverter?
Instability, the wind speed and the equipment itself will directly affect the generator rotation, so the voltage and current fluctuations, frequency instability, in short, is the power quality is poor) Therefore, through the inverter after the first rectification inverter to improve the quality of power
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:Is the grid side of the grid and the inverter?
Off-grid system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load;
Q:The function of photovoltaic grid - connected inverter
After some additional voltage buffering, the left side of the bridge is usually 18 ~ 20khz switching frequency, the dc voltage is converted to ac voltage.
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: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
Self-use, do you mean off-grid system? Or else? Europe and Sweden side of the grid project electricity situation is also self-use? If not for their own use or spontaneous use is not used up, sent to other places electricity, you need a transformer?

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