Photovoltaic Grid-Connected Inverter SG2K5TL-S

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Product Description:

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:Installation and maintenance of photovoltaic grid - connected inverter
only when the local power sector permission by the professional and technical personnel to complete all the electrical connection before the inverter can be connected.
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: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: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: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 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: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: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 grid inverter is a current source, the output voltage is basically the grid voltage, may be slightly raised.
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:Generally a large grid-connected photovoltaic power plant will have several inverters
, This method is simple to design, easy maintenance, but also for the power grid harmonics smaller, good power quality!

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