Photovoltaic Grid-Connected Inverter SG40KTL

Ref Price:
$3,310.00 - 5,500.00 / unit
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China Main Port
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TT or LC
Min Order Qty:
50 unit
Supply Capability:
10000 unit/month

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Product Description:

1. Structure of Photovoltaic Grid-Connected Inverter SG40KTL 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 SG40KTL

• Full 36kW effective power at power factor of 0.9 due to apparent power reserves up to 39.8kVA

• Max. Efficiency at 98.3%

• Dual MPP trackers control

• Reduced cabling on AC side due to higher output voltage of 480Vac

• Integrated combiner box: 8 x MC4 connector pairs with DC string fuses, Type II overvoltage protection and DC switch, more safety and lower the system cost

• Can be wall-mounted without lifting equipment, weight 65 kg

• Active power continuously adjustable (0~100%)

• Reactive power control with power factor 0.8 overexcited ~ 0.8 underexcited

• Includes RS-485 interface, compatible with all common monitoring systems

• Product certification: TÜV, BDEW and CGC

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

 

3. Photovoltaic Grid-Connected Inverter SG40KTL Images

 

 

4. Photovoltaic Grid-Connected Inverter SG40KTL Specification

Input Side Data

Max. PV input power

40500W

Max. PV input voltage

1000V

Startup voltage

300V

Nominal input voltage

710V

MPP voltage range

280~950V

MPP voltage range for nominal power

560~800V

No. of MPPTs

2

Max. number of PV strings per MPPT

4

Max. PV input current

66A(33A/33A)

Max. current for input connector

12A 

Output Side Data

Nominal AC output power

36000W

Max AC output power(PF=1)

39800W

Max. AC output apparent power

39800VA

Max. AC output current

48A

Nominal AC voltage

3/N/PE, 277/480Vac or 3/PE, 480Vac

AC voltage range

422~528Vac 

Nominal grid frequency

50Hz/60Hz

Grid frequency range

45~55Hz/55~ 65Hz

THD

< 3 %  (Nominal power)

DC current injection

<0.5 %In

Power factor

>0.99@default value at nominal power

(adj. 0.8overexcited ~0.8underexited)

Protection

Anti-islanding protection

Yes

LVRT

Yes

DC reverse connection protection

Yes

AC short circuit protection

Yes

Leakage current protection

Yes

DC switch

Yes

DC fuse

Yes

Overvoltage protection

DC Type II DIN rail surge arrester(40KA)

System Data

Max. efficiency

98.30%

Max. European efficiency

98.00%

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

Smart forced air cooling

Max. operating altitude

4000m (>3000m derating) 

Display

Graphic LCD

Communication

RS485(RJ45 connector)

DC connection type

MC4

AC connection type

Screw Clamp terminal

Certification

VDE0126-1-1, EN62109-1, EN62109-2,BDEW,

CGC, NRS 097-2-1, GB/T 19964, UTE C15-712-1

IEC 61683, IEC 60068-2, IEC61727, IEC62116,

IEC62109-1, IEC62109-2, EN50178, IEC62103,

EN61000-6-1, EN61000-6-2, EN61000-6-3, EN61000-6-4

Mechanical Data

Dimensions(W×H×D)

634×820×257mm

Mounting method

Wall bracket

Weight

65kg

 

5. FAQ of Photovoltaic Grid-Connected Inverter SG40KTL

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
The square wave output of the inverter using pulse width modulation integrated circuits, such as SG3525, TL494 and so on. Practice has proved that the use of SG3525 integrated circuits, and the use of power FET as a switching power components, to achieve high performance of the inverter, because the SG3525 has a direct drive power FET capability and has an internal reference source and operational amplifiers and Undervoltage protection, so its peripheral circuit is very simple.
Q:What is the difference between a PV inverter and a solar inverter?
The main function of photovoltaic grid-connected inverter is to convert the DC power of the solar PV module into the same frequency as the sinusoidal AC power of the grid (the grid is generally AC power grid, DC can not be directly connected)
Q:Is the grid side of the grid and the inverter?
Off-grid system power transmission sequence: photovoltaic panels> relays> inverters> relays> electricity load;
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:How the output voltage of the PV inverter and the grid-connected voltage are determined
supply through the cable to the battery. The use of household appliances connected to the power converter output can be used in the car a variety of electrical appliances. The available electrical appliances are: mobile phones, laptops, digital cameras, cameras, lights, electric razors, CD players, game consoles, handheld computers, power tools, car refrigerators and various tourism, camping, medical emergency appliances Wait.
Q:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Offline generally need energy storage, not to send energy to the Internet. Grid has no right to interfere.
Q:Installation and maintenance of photovoltaic grid - connected inverter
photovoltaic systems Power generation system used in the cable must be connected firmly, good insulation and specifications appropriate.
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 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:Generally a large grid-connected photovoltaic power plant will have several inverters
Group is the use of a number of grid-connected inverter and grid-connected AC power grid, the advantage is the loss of small, low cost of the cable (because the PV cable is more expensive), eliminating the cost of the convergence box, and multiple

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