• Solar Inverter Panel Photovoltaic Grid-Connected Inverter SG50KTL-M System 1
  • Solar Inverter Panel Photovoltaic Grid-Connected Inverter SG50KTL-M System 2
  • Solar Inverter Panel Photovoltaic Grid-Connected Inverter SG50KTL-M System 3
Solar Inverter Panel Photovoltaic Grid-Connected Inverter SG50KTL-M

Solar Inverter Panel Photovoltaic Grid-Connected Inverter SG50KTL-M

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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.

Q: How does a solar inverter handle power quality disturbances?
A solar inverter handles power quality disturbances by employing various protective measures. It typically includes features such as voltage regulation, frequency control, and surge protection. In the case of voltage fluctuations, the inverter adjusts the output voltage to maintain a stable power supply. Similarly, it monitors the grid frequency and adjusts its output frequency accordingly. Moreover, it incorporates surge protection mechanisms to safeguard against power surges and voltage spikes. Overall, a solar inverter efficiently manages power quality disturbances to ensure a reliable and stable electricity supply.
Q: Can a solar inverter be used with different types of backup power sources?
Yes, a solar inverter can be used with different types of backup power sources. Solar inverters are designed to convert the direct current (DC) generated by solar panels into alternating current (AC) that can be used to power electrical devices. They can be integrated with various backup power sources such as batteries, generators, or the grid. This flexibility allows for a reliable and uninterrupted power supply, utilizing solar energy as the primary source while seamlessly switching to alternative power sources when needed.
Q: Are there any government regulations or certifications for solar inverters?
Yes, there are government regulations and certifications for solar inverters. These regulations vary by country and region, but typically involve safety standards, grid compatibility requirements, and product testing procedures. Additionally, various certifications such as UL, IEC, and CE are commonly required to ensure the quality and reliability of solar inverters in the market.
Q: Can a solar inverter be used in areas with high levels of electrical noise or interference?
In areas with high levels of electrical noise or interference, a solar inverter can indeed be utilized. However, it is crucial to verify that the solar inverter is specifically designed and equipped to handle such conditions. Some contemporary solar inverters come with built-in features and technologies that aid in minimizing electrical noise and interference. These features encompass advanced filtering, shielding, and surge protection mechanisms. In addition, employing proper grounding and installation techniques can further diminish the impact of electrical noise and interference on the solar inverter's performance. To ensure compatibility and optimal performance in high-noise environments, it is recommended to seek advice from a professional or the manufacturer of the solar inverter.
Q: What are the safety certifications to look for in a solar inverter?
When considering a solar inverter, it is important to look for safety certifications such as the UL 1741 standard for grid-tied inverters, which ensures compliance with safety and performance requirements for electrical equipment. Additionally, certifications like IEC 62109 and CSA C22.2 No. 107.1 demonstrate compliance with international safety standards. It is also advisable to check for certifications related to electromagnetic compatibility (EMC) and protection against overvoltage or overcurrent situations.
Q: What is the role of reactive power injection in a solar inverter?
The role of reactive power injection in a solar inverter is to help maintain the stability and quality of the electrical grid. Reactive power is required to regulate voltage levels and compensate for any imbalances or fluctuations in the grid. By injecting reactive power, a solar inverter can ensure that the power generated from the solar panels is in sync with the grid's voltage and frequency, helping to maintain proper power flow and prevent potential issues such as voltage sags or surges.
Q: Can a solar inverter be used with a solar water pumping system?
Yes, a solar inverter can be used with a solar water pumping system. The solar inverter converts the DC power generated by the solar panels into AC power, which is required to operate the water pump. This allows for the efficient and reliable operation of the solar water pumping system using solar energy.
Q: Can a solar inverter be used with different types of communication protocols?
Yes, a solar inverter can be used with different types of communication protocols. Many modern solar inverters are designed to be compatible with various communication protocols such as Wi-Fi, Ethernet, RS485, and Modbus, among others. This flexibility allows the solar inverter to integrate with different monitoring systems, smart devices, or home automation systems, ensuring seamless communication and control.
Q: How does a solar inverter protect against voltage fluctuations?
A solar inverter protects against voltage fluctuations by continuously monitoring the voltage levels from the solar panels. It then adjusts the output voltage to match the required voltage for the connected devices or the grid. This ensures a stable and consistent voltage supply, preventing any damage that could be caused by sudden voltage spikes or drops.
Q: Can a solar inverter be used with thin-film solar panels?
Yes, a solar inverter can be used with thin-film solar panels. Thin-film solar panels have different electrical characteristics compared to traditional crystalline solar panels, but a suitable solar inverter can be selected to match the voltage and current requirements of the thin-film panels.

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