Photovoltaic Grid-Connected Inverter SG2K5TL-S

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1. Structure of Photovoltaic Grid-Connected Inverter SG2K5TL-S 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 Asia, Africa and Europe. Available for hand installation, no need for lifting machinery

 assistance.

 

2. Main Features of the Photovoltaic Grid-Connected Inverter SG2K5TL-S

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

• Only 9kg, 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. Photovoltaic Grid-Connected Inverter SG2K5TL-S Images

 

 

 

4. Photovoltaic Grid-Connected Inverter SG2K5TL-S Specification

Input Side Data

 

Max. PV input power

2800W

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

1

Max. number of PV strings per MPPT

1

Max. PV input current

11A

Max. current for input connector

20A 

Output Side Data

Nominal AC output power

2490W

Max AC output powerPF=1

2490W

Max. AC output apparent power

2490VA

Max. AC output current

11.5A

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

97.40%

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,G83/2C10/11,EN50438,CGC

Mechanical Data

DimensionsW×H×D

300*370*125 mm

Mounting method

Wall bracket

Weight

9kg

 

 

 

5. FAQ of Photovoltaic Grid-Connected Inverter SG2K5TL-S

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 are the methods of photovoltaic grid-connected inverter control
and can set the dead time between the upper and lower arms, the use of INTEL 80C196MC to achieve sine wave output circuit, 80C196MC to complete the sine wave signal, AC output voltage, to achieve regulation. Circuit output generally use LC circuit filter high frequency wave, get pure sine wave.
Q:What is the difference between low voltage grid connection and medium voltage grid connection?
For photovoltaic power plants when the power system accidents or disturbances caused by photovoltaic power plant grid voltage drop, in a certain voltage drop range and time interval, the photovoltaic power plant can ensure that non-off-line continuous operation.
Q:Three-phase photovoltaic inverter grid, the use of phase-locked loop is what?
Grid-connected inverter can be operated locally through the LCD screen, or through remote monitoring with dedicated monitoring software.
Q:PV grid-connected inverter can directly load it?
Grid-connected inverter is usually equipped with island protection function, can only receive the power grid, if the load directly, the output is disconnected.
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:The function of photovoltaic grid - connected inverter
After some additional voltage buffering, the left side of the bridge is usually 18 ~ 20khz switching frequency, the dc voltage is converted to ac voltage.
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?
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.
Q:Photovoltaic grid-connected inverter without DC emc how will happen
can convert light energy into electricity, so that the current flow from one side to the other, the general can be issued equivalent to 10 to 20% of the received light energy. In general, the stronger the light, the more electricity is generated. Its working principle is based on the semiconductor PN junction of the photovoltaic effect. The so-called photodynamic effect is when the object by the light, the object within the charge distribution of the state of the electromotive force and current generated an effect.
Q:After the PV inverter, how to achieve the same period before the network?
Grid simulator: analog power grid, normal and abnormal conditions, overvoltage, undervoltage, over frequency, under frequency, sudden power failure, etc.

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