Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter

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1. Structure of Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter Description

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

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

It is acritical 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.

Suitable for 50Hz/60Hz grid, could be used in Europe, Middle East Asia, Southeast Asia and Australia.

 

2. Main Features of the Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter

• 7 square meters area for megawatt-class equipment

• Transport and installation by forklift, more flexible and economical

• Open door design of four sides, easy for installation and maintenance

• More flexible for inner devices overall replacement

• Efficient cooling patented design of combination inline and ventilation

• Patented structure design of inlet and outlet, effective dust proof

• Thick and efficient heat insulation layer

• Advanced three-level circuit structure improves product performance

• 8-MPPT, wide MPP voltage range, Flexible setting of 2 /4/ 8 MPPT

• Comprehensive modular ,Draw-type design

 

3. Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter Images

 

 

4. Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter Specification

Input (DC)

 

Max. DC power (@ cos φ =1)

1120kW

Max. input voltage

1000V

Start voltage

 520V

Min. working voltage

 500V

Max. input current

 2280A

MPPT voltage range 

 500~850V

Number of MPPTs

 2, 4, 8

Number of DC inputs

 2 x 8

 

 

Output (AC)

 

Rated power

1000kW

Max. output AC power

1100kVA

Max. output current

2036A

THD

<3%(at nominal power)

Nominal AC voltage

315V

AC voltage range

252~362Vac

Nominal grid frequency

50Hz / 60Hz

Grid frequency range

47~52Hz / 57~ 62 Hz

Power factor

>0.99@default value at nominal power, adj. 0.9 overexcited ~0.9 underexcited

Isolated transformer

No

DC current injection

<0.5% In

 

 

Efficiency

 

Max. efficiency

98.80%

European efficiency

98.60%

 

 

Protection

 

DC disconnect device  

Switch-disconnector with  fuses

AC disconnect device

Switch-disconnector with  fuses

DC overvoltage protection

Yes

AC overvoltage protection

Yes

Grid monitoring

Yes

Ground fault monitoring

Yes

Overheat protection

Yes

Insulation monitoring

Yes

 

 

General Data

 

DimensionsW×H×D

2991X2591X2438mm

Weight

Containing DC Distribution Cabinet: 5169kg, Not Containing DC Distribution Cabinet: 4834kg

Operating ambient temperature range

-35~+50

External auxiliary supply voltage

380V

Cooling method

Temperature controlled air-cooling

Ingress protection rating

IP54

Allowable relative humidity range

0~95%, non -condensing

Max. operating altitude

6000m (derating > 3000m)

Communication port/protocols

Standard: RS485/ Modbus, Internet  Options: CDT, DNP3.0, 101, 103, 104, GPRS/CDMA module

 

5. FAQ of Photovoltaic On-Grid Connected Inverter SG1000TS-M PV inverter

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: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:Is the PV inverter a current source or a voltage source?
The inverter is mainly composed of a switching element such as a transistor, and turns the DC input into an AC output by repeatedly turning ON-OFF the switching element in a regular manner.
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: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
And you said that the independent inverter, said off-grid inverter it, this inverter can not access the mains, the components of the electricity through the off-grid inverter to the battery charge, the battery at night
Q:Installation and maintenance of photovoltaic grid - connected inverter
Before the installation should first check whether the inverter in the transport process for damage. When selecting the installation site, there should be no interference with any other power electronic equipment in the surrounding area.
Q:Solar grid inverter does not merge into the grid, direct access to the load to the load power supply?
Which depends on the grid inverter in the absence of the grid there is no independent operation of the function of the general grid inverter is the current type, only responsible for the power to the grid, the voltage is maintained by the grid,
Q:What is the PV inverter starting voltage
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. According to the waveform modulation method can be divided into square wave inverter, stepped wave inverter, sine wave inverter and modular three-phase inverter. For the inverter for the grid system, depending on whether the transformer can be divided into transformer-type inverter and transformer-free inverter.
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
Part of the distributed grid-connected projects, the basic are "spontaneous use, the power of the Internet," these do not need to boost, because the extra power is actually consumed by the surrounding electricity users, do not boost to a Level power grid;
Q:Generally a large grid-connected photovoltaic power plant will have several inverters
The use of a high-power grid-connected inverter into the grid, the need for line design is relatively simple, because the DC and AC lines are separated, the use of convergence box to summarize, DC bus and then into the grid inverter

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