Photovoltaic Grid-Connected Inverter SG50KTL-M

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Product Description:

1. Structure of Photovoltaic Grid-Connected Inverter SG50KTL-M 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 SG50KTL-M

• High flexibility for complex configurations due to 4 MPP trackers and a wide input voltage range

• High yields due to efficiency up to 98.9% and EU efficiency of 98.5%

• Output power up to 55kVA / 55kW(SG50KTL-M) and 66kVA / 66kW(SG60KTL-M) at power factor of 1

 

• Integrated combiner box: 12 x MC4 connector pairs with DC string fuses, Type II overvoltage protection and DC switch, more safety and lower the system cost

 

• Active power continuously adjustable (0~100%)

• Fulfill a variety of reactive power adjustment requirments with power factor 0.8overexited ~0.8 underexited

• Integrated LVRT and HVRT function

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

 

• Product certification: TÜV, CE, G59/3, BDEW, CGC and GB-T19964

Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000

 

3. Photovoltaic Grid-Connected Inverter SG40KTL Images

 

 

 

 

 

4. Photovoltaic Grid-Connected Inverter SG50KTL-M Specification

Side Data

Max. PV input power

56200W

Max. PV input voltage

1000V

Startup voltage

300V

Nominal input voltage

590V

MPP voltage range

300~950V

MPP voltage range for nominal power

500~850V

No. of MPPTs

4

Max. number of PV strings per MPPT

3

Max. PV input current

104A(26A/26A/26A/26A)

Max. current for input connector

12A 

Output Side Data

Nominal AC output power

50000W

Max AC output powerPF=1

55000W

Max. AC output apparent power

55000VA

Max. AC output current

80A

Nominal AC voltage

3/N/PE, 230/400Vac

AC voltage range

310~480Vac 

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

98.90%

Max. European efficiency

98.50%

Isolation method

Transformerless

Ingress protection rating

IP65

Night power consumption

<1W

Operating ambient temperature range

-25~60(>50 derating)

Allowable relative humidity range

0~100% 

Cooling method

Smart forced air cooling

Max. operating altitude

4000m (3000m derating) 

Display

Graphic LCD

Communication

RS485

DC connection type

MC4

AC connection type

Screw Clamp terminal

Certification

VDE0126-1-1,EN62109-1,EN62109-2,G59/3,

BDEW,GB/T 19964, GB/T 29319 

Mechanical Data

DimensionsW×H×D

665 * 906 * 256 mm

Mounting method

Wall bracket

Weight

70kg

 

 

5. FAQ of Photovoltaic Grid-Connected Inverter SG50KTL-M

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
Inverter is a kind of semiconductor device composed of power adjustment device, mainly used for DC power into AC power. Generally consists of boost circuit and inverter bridge circuit. The boost circuit boosts the DC voltage of the solar cell to the DC voltage required for the inverter output control. The inverter bridge circuit converts the boosted DC voltage to the AC voltage of the common frequency. 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. Of course, it is not practical to simply output the inverter output waveforms from the on and off circuits
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:PV grid-connected inverter can directly load it?
TL5001 operating voltage range of 3.6 ~ 40V, its internal with an error amplifier, a regulator, oscillator, a dead zone control PWM generator, low voltage protection circuit and short circuit protection circuit
Q:Installation and maintenance of photovoltaic grid - connected inverter
, any failure that affects the safety performance of the inverter must be immediately removed before turning on the inverter again.
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:PV grid-connected inverter and independent inverter in the control of what is the difference
The independent inverter in the output voltage phase amplitude of the frequency control is initially set good. Independent inverter, you should refer to off-grid inverter, do not need to consider the grid situation.
Q:What are the methods of photovoltaic grid-connected inverter control
Inverter main circuit need to have a control circuit to achieve, generally have square wave and sine wave two control methods, square wave output inverter power supply circuit is simple, low cost, but low efficiency, harmonic components. Sine wave output is the development trend of the inverter, with the development of microelectronics technology, there are PWM function of the microprocessor has also come out, so the sine wave output inverter technology has matured.
Q:The function of photovoltaic grid - connected inverter
Finally, a sinusoidal AC output for a grid-connected photovoltaic power generation system is generated by a low-pass filter.
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:What is the difference between a grid-connected inverter and an off-grid inverter? What are the advantages of a hybrid inverter?
Hybrid inverter is not a clear concept, but now both energy storage dual-grid inverter does have the ability to receive control system,

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