Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC

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1.  Structure of Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC Description

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 the Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC

• Flexible design due to dual MPPT tracking that is equipped to obtain full nominal power, 3-phase supply

• High energy yield due to maximum efficiency up to 98.1%competitive wholesale price.

Low noise levels and internal consumption due to natural cooling

Integrated theft protectionAC Voltage Range:150V-550Vac

Access to Home WiFi system and enjoy cloud services via smart phones

Integrated power management function, easy to receive the adjustable command from grid

Extensive communication: RS-485, Ethernet, WLAN / WiFi, 4 digital inputs for ripple control receivers

Product certification: TÜV, VDE 0126-1-1, EN 62109-1/-2, CE, G83/1, VDE-AR-N 4105

Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000

 

 

3.  Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC Images

 

4.  Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC Specification

Input Side Data

 

Max. PV input power

6312W

Max. PV input voltage

1000V

Startup voltage

250V

Nominal input voltage

610V

MPP voltage range

200~900V

MPP voltage range for nominal power

320~800V

No. of MPPTs

2

Max. number of PV strings per MPPT

1/1

Max. PV input current

19.8A(9.9A/9.9A)

Max. current for input connector

10A 

Short-circuit current of PV input

24.8A(12.4A/12.4A)

Output Side Data

 

Nominal AC output power

6000W

Max AC output powerPF=1)

6000W

Max. AC output apparent power

6000VA

Max. AC output current

8.7A

Nominal AC voltage

3/N/PE,230/400Vac

AC voltage range

310~480Vac(May vary as per corresponding country's grid  standard) 

Nominal grid frequency

50Hz

Grid frequency range

45~55Hz(May vary as per corresponding country's grid  standard)  

THD

< 3 %  (Nominal power)

DC current injection

<0.5 %In

Power factor

>0.99@default value at nominal power,
(adj. 0.8overexcited ~0.8underexcited)

Protection

 

Anti-islanding protection

Yes

LVRT

No

DC reverse connection protection

Yes

AC short circuit protection

Yes

Leakage current protection

Yes

DC switch

Integrated

DC fuse

No

Overvoltage protection

 III 

System Data

 

Max. efficiency

98.1%

Max. European efficiency

97.3%

Isolation method

Transformerless

Ingress protection rating

IP65

Night power consumption

<1W

Operating ambient temperature range

-25~60(>45 derating)

Allowable relative humidity range

0~100%

Cooling method

Natural cooling

Noise

≤29dB

Max. operating altitude

2000m

Display

Graphic LCD

Communication

Ethernet,RS485RJ45 connector,4×Digital Inputs,Wifi

DC connection type

MC4

AC connection type

Plug and play connector

Certification

VDE0126-1-1,EN62109-1,
EN62109-2,G83/1,VDE-AR-N-4105.

Mechanical Data

 

DimensionsW×H×D

403×518×190mm

Mounting method

Wall bracket

Weight

22kg

 

 

5.  FAQ of Solar Photovoltaic Grid-Connected Inverter SG6KTL-EC

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: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
Connected to the grid is connected to which specific location ah? Transformer is to buy a separate, or buy inverter inside the type of transformer? For example, Sweden's 15KW and 30KW grid roof projects, the roof, for example, more remote to be transported to other electricity.
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.
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:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter does not need energy storage, but the energy can not be controlled, the number of photovoltaic sent to send online how much, simply do not want people to.
Q:Photovoltaic grid-connected inverter problem
But Baidu Encyclopedia clearly pointed out: the zero line is the secondary side of the transformer leads the neutral point of the line, and the phase line constitutes a circuit for power supply equipment.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
light is obtained by the electrons of the semiconductor device, thus generating electrical energy. This energy conversion of light energy into energy, that is, solar cells. Solar cells, like transistors, are made of semiconductors. Its main material is silicon, and there are some other alloys. High-purity silicon used in the manufacture of solar cells is subject to special purification. Solar cells as long as the sun or light exposure,
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: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.

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