Photovoltaic Grid-Connected Inverters SG630MX

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$22,000.00 - 24,750.00 / unit
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China Main Port
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TT or LC
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10 unit
Supply Capability:
1000 unit/month

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1.  Structure of Photovoltaic Grid-Connected Inverters SG630MX Description

SG630KTL is using low-frequency isolation transformer for protective purpose.

Its wider input voltage range ensures more combinations of the PV arrays.

Moreover, optical fiber isolation technology has been adopted to increase its anti-interference ability under the circumstances

of multiple inverters installation.

In addition, optimized circuit and structural design has improved system thermal efficiency which enhancing

system reliability and stability.

Reinforced protection functions, including the DC ground fault protection, make it the best product for large

scale PV power plant.

 

2.  Main Features of the Photovoltaic Grid-Connected Inverters SG630MX

• CE certification, CGC certification

• LVRT (Zero-voltage Ride-through)

• Active power continuously adjustable (0~100%)

• Reactive power control with power factor from 0.9 lagging to 0.9 leading

• DC input voltage up to 1000V

• Latest 32 bit DSP chip, advanced digital lock-in technique, more quickly and precisely

• -30℃~+55℃ continuously operating at rated power

• Continuously and stably working in high altitude environment

• Auxiliary heater (Optional)

 

3.  Photovoltaic Grid-Connected Inverters SG630MX Images

 

 

 

4.  Photovoltaic Grid-Connected Inverters SG630MX Specification

MODEL 

SG630MX-E

DC SIDE DATA 

Max. DC Voltage

1000Vdc

MPP Voltage Range

615~850Vdc

Max. DC Power

7130kWp

Max. Input Current 

1160A

AC SIDE DATA

Rated Output Power

630kW 

Rated Grid Voltage

400Vac

Grid Voltage Range

250~362Vac

Rated Grid Frequency

50Hz/60Hz

Grid Frequency Range

47~52Hz/57~62Hz

Output Current THD

<3% (at nominal power)

DC Current Injection

<0.5% of rated inverter output current

Power Factor

0.9(lagging)~0.9(leading)

SYSTEM 

Max. Efficiency 

98.6%

Euro Efficiency 

98.5%

Protection Degree 

IP21

Operating Temp. 

-30~+65°C(> 55°C derating)

Cooling Method 

Temperature controlled forced-air cooling

Relative Humidity

0~95%, non-condensing

Max. Working Altitude

6000m (operation with derating above 3000m)

Display AND COMMUNICATIONS

Display

touch screen LCD

Standard Comm. Interfaces

RS485

Optional Comm. Interfaces

Ethernet

MECHANICAL DATA 

Dimensions(WxHxD) 

1606x2304x860mm

Net Weight

1700kg

 

5.  FAQ of Photovoltaic Grid-Connected Inverters SG630MX

Q1. What is the difference between inverter and solar inverter?

    A1. Inverter only has AC inpput, but solar inverter both connect to AC input and solar panel, it saves more power.

Q2. What is the difference between MPPT&PWM?

    A2. MPPT has higher efficiency, it can track the max power point and won't waste energy.

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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
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:PV grid-connected inverter can directly load it?
Grid-connected inverter is like a car file, he first detects the grid waveform, can not detect not boot, and then the PV DC modulation and consistent with the grid waveform, and then hang up.
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: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: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: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: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 small use of field-effect transistors while using a DSP conversion controller to improve the quality of the output power makes it very close to the sine wave current.
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: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

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