Photovoltaic Inverter 50KW Off Grid Three Phase

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50000 watt
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3000000 watt/month

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1. Structure of Photovoltaic Inverter 50KW Off Grid Three Phase

A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a

 utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is

a critical BOS–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar inverters have special

functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.

 

2. Main Features of Photovoltaic Inverter 50KW Off Grid Three Phase

• using IGBT from Mitsubishi company as the power components
•using American ATEMEL company microprocessor as figure controller
• perfect protection and warning functions
• circuit frame compact,Max. Efficiency≥94%
• with wide input voltage range
• RS232/485 communication,multi communication interface can be selected
•big-screen English LCD, perfect display, interface-friendly

 

3. Photovoltaic Inverter 50KW Off Grid Three Phase Images

 

 

4. Photovoltaic Inverter 50KW Off Grid Three Phase Specification

窗体顶端

50KVA off grid three phase inverter technical parameters

窗体底端

Type

ND220-50KS

ND380-50KS

DC input

Input rated voltage

220 VDC

380 VDC

Input rated current

227 A

132 A

Input DC voltage range

180-300 VDC

300-490VDC

 

Allow input voltage   range

220 VAC / 380 VAC   / 400 VAC ± 15% VAC

AC input

Input rated current

139A / 76A / 72.5A

 

Bypass transfer time

4 ms

AC output

Rated capacity

50KVA

Output rated power

40KW

Output rated voltage   and frequency

220 VAC / 380 VAC   / 400 VAC,50Hz / 60Hz

Output rated current

139A / 76A / 72.5A

Output voltage accuracy

220 VAC / 380 VAC   / 400 VAC ± 2%

Output frequency   accuracy

50Hz / 60Hz ±0.05%

Waveform distortion   (THD).   (Linear load)

≤3%

Dynamic response time   (Load 0←→100%)

2ms

Power factor (PF)

0.8

Overload capacity

120%,3 minutes,150%,10 second

Crest factor (CF)

3:01

Inverter efficiency

94%

Working Environment

Dielectric strength

1500VAC,1minute

Noise (1m)

≤50dB

Ambient temperature

-10~+50

Humidity

0~90%,No condensation

Altitude

≤5000 m

Production function

Input reverse   protection, input under-voltage protection, output overload protection,   output short circuit protection, thermal protection

 

 

5. FAQ of Photovoltaic Inverter 50KW Off Grid Three Phase

Q1:Can we visit your factory?

A1:Sure,welcome at any time,seeing is believing.

Q2:Which payment terms can you accept?

A2:T/T,L/C,Moneygram,Paypal are available for us.

 

 

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:What is the PV inverter starting voltage
The inverter not only has the function of direct current conversion, but also has the function of maximizing the performance of the solar cell and the system fault protection function. (With grid system), automatic voltage adjustment function (for network connection), DC detection function (for network connection), DC grounding detection (for network connection), automatic power control function Function (for grid connection). Here is a brief introduction to automatic operation and shutdown function and maximum power tracking control function.
Q:PV grid-connected inverter can directly load it?
Converter is the AC voltage of the grid into a stable 12V DC output, and the inverter is the AC output of the 12V DC voltage into high-frequency high-voltage alternating current; two parts are also used with more pulse width
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.
The grid inverter is a current source, the output voltage is basically the grid voltage, may be slightly raised.
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:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:Is the PV inverter a current source or a voltage source?
Photovoltaic inverter, also known as power regulator, according to the inverter in the use of photovoltaic power generation system can be divided into two kinds of independent power supply and grid.
Q:The function of photovoltaic grid - connected inverter
Finally, a sinusoidal AC output for a grid-connected photovoltaic power generation system is generated by a low-pass filter.
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:Generally a large grid-connected photovoltaic power plant will have several inverters
Group is the use of a number of grid-connected inverter and grid-connected AC power grid, the advantage is the loss of small, low cost of the cable (because the PV cable is more expensive), eliminating the cost of the convergence box, and multiple
Q:The working principle of photovoltaic grid - connected inverter
In the small-capacity inverter generally push-pull inverter circuit, full-bridge inverter circuit and high-frequency step-up inverter circuit three, push-pull circuit, the step-up transformer neutral plug connected to the positive power supply, two power Alternating current, the output to get AC power, due to the power transistor to ground, drive and control circuit is simple, and because the transformer has a certain leakage inductance, can limit the short circuit current, thus improving the reliability of the circuit. The disadvantage is the low utilization of the transformer, driving the emotional load is poor.

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