Solar Photovoltaic Grid-Connected Inverter SG5KTL-D

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1.  Structure of Solar Photovoltaic Grid-Connected Inverter SG5KTL-D 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 SG5KTL-D

• Max. input voltage 600V, compatible with different PV panel and string design

• Dual MPPT, compatible with different residential rooftop system design

• Only 11kg, easy for handling and installation

• Max. Efficiency at 98.0%

• Ultra-quiet, suitable for residential use

• Access to home WiFi system, easy to enjoy the online monitoring

• Wireless communication design, intelligent mobile phone local and remote monitoring

• Product certification: TÜV, CE, AS4777, AS/NZS 3100, VDE AR N 4105

•Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000

 

 

3.  Solar Photovoltaic Grid-Connected Inverter SG5KTL-D Images

 

 

4.  Solar Photovoltaic Grid-Connected Inverter SG5KTL-D Specification

Input Side Data

 

Max. PV input power

5400W

Max. PV input voltage

600V

Startup voltage

150V

Nominal input voltage

345V

MPP voltage range

125~560V

MPP voltage range for nominal power

240~520V

No. of MPPTs

2

Max. number of PV strings per MPPT

1

Max. PV input current

22A(11A/11A)

Max. current for input connector

20A 

Output Side Data

 

Nominal AC output power

5000W / 4600W ( Australia )*

Max AC output powerPF=1

5000W

Max. AC output apparent power

5000VA

Max. AC output current

21.7A / 20A ( Australia )*

Nominal AC voltage

230Vac (Single phase)

AC voltage range

180~276Vac (May vary as per corresponding country’s grid standard)

Nominal grid frequency

50Hz/60Hz

Grid frequency range

4555Hz/5565Hz (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. 0.8 overexited~0.8 underexcited)

Protection

 

Anti-islanding protection

YES

LVRT

NO

DC reverse connection protection

YES

AC short circuit protection

YES

Leakage current protection

YES

DC switch

Optional

DC fuse

NO

Overvoltage protection

Varistors 

System Data

 

Max. efficiency

98.00%

Max. European efficiency

97.50%

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

Max. operating altitude

4000m (>2000m derating) 

Display

LED, LCD(optional)

Communication

WiFi (optional)

DC connection type

MC4

AC connection type

Plug and play connector

Certification

IEC61000-6-2,IEC61000-6-3,
AS/NZS3100,AS4777.2,AS4777.3
VDE-AR-N-4105, VDE0126-1-1,CE,G83/2
C10/11,EN50438,CGC

Mechanical Data

 

DimensionsW×H×D

360*390*133 mm

Mounting method

Wall bracket

Weight

11kg

* When the SG5KTL-D type countries choose to Australia, rated output power is 4600W, when the SG5KTL-D type countries choose to Australia, the maximum output current is 20A.
* Specifications subject to change without notice.

 

 

5.  FAQ of Solar Photovoltaic Grid-Connected Inverter SG5KTL-D

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:What is the PV inverter starting voltage
sine wave becomes narrower and the voltage width in the center of the sine wave is widened and the switching element is always operated in a direction at a certain frequency in a half cycle, A pulse wave train (pseudo sine wave). Then let the pulse wave form a sine wave through a simple filter
Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Photovoltaic inverters for grid-connected photovoltaic power generation systems are primarily capable of receiving DC power from photovoltaic arrays and converting them into sine-wave currents of the same frequency and in phase with the access grid for powering the grid or local loads.
Q:After the PV inverter, how to achieve the same period before the network?
It can automatically detect the generator and the grid frequency and voltage, in the frequency, voltage, phase are in line with the requirements of the grid to set the time before the release of the closing signal, so that it can be safely and securely connected.
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: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 low voltage grid connection and medium voltage grid connection?
Have a low pressure through the function set, low pressure through the scope of the project requirements, grid and network requirements and the actual situation of the design), low voltage grid to pass the voltage range is less than the medium pressure, parameter settings are not sensitive and complex.
Q:What is the difference between a PV grid-connected inverter and an off-grid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters called low-voltage crossing ability, you can do PQ adjustment
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: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
Spontaneous use is a way of grid, that is issued to the electricity, mainly their own family or internal use, the excess part of the power to the grid
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Grid-connected inverter will be directly sent to the power grid, so to track the frequency of the grid, phase, the equivalent of a current source. Of course, there are some inverters that have a low-pressure through the ability to do PQ adjustment.

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