250KW Solar Inverter Photovoltaic Grid-Connected Inverter SG40KTL
- Ref Price:
-
$3,310.00 - 5,500.00
/ unit
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 unit
- Supply Capability:
- 10000 unit/month
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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.
- Q: What is the purpose of a solar inverter in a solar power system?
- The purpose of a solar inverter in a solar power system is to convert the direct current (DC) electricity produced by solar panels into alternating current (AC) electricity, which is the type of electricity used in most household appliances and the power grid.
- Q: Are there any safety concerns associated with solar inverters?
- Yes, there are some safety concerns associated with solar inverters. One of the main concerns is the risk of electrical shock or fire due to faulty installation or maintenance. Additionally, there can be potential hazards from exposure to high voltage DC electricity during installation or repairs. It is important to follow proper installation procedures and adhere to safety guidelines to mitigate these risks.
- Q: How do you monitor the performance of a solar inverter?
- To monitor the performance of a solar inverter, several methods can be employed. Firstly, real-time monitoring systems can be installed that collect data on various parameters such as power output, voltage, current, and temperature. These systems often include data loggers or communication modules that transmit the information to a central monitoring station or cloud-based platform. Additionally, regular inspections and maintenance checks can be conducted to visually inspect the inverter for any signs of damage, loose connections, or overheating. Monitoring the inverter's efficiency over time, comparing the actual power output with the expected output based on solar irradiance and temperature, can also provide insights into its performance. Furthermore, some solar inverters come with built-in monitoring capabilities, allowing users to access performance data through a web-based interface or mobile app. This provides real-time and historical data, including energy production, system faults, and alerts, enabling users to identify and address any issues promptly. Overall, a combination of real-time monitoring systems, regular inspections, and utilizing inverter-specific monitoring features can effectively monitor the performance of a solar inverter.
- Q: What is the maximum AC current output of a solar inverter?
- The maximum AC current output of a solar inverter varies depending on the model and capacity of the inverter. Generally, it can range from a few amps to several hundred amps.
- Q: Are solar inverters compatible with battery storage systems?
- Yes, solar inverters are compatible with battery storage systems. In fact, solar inverters play a crucial role in integrating battery storage with solar power systems. Solar inverters convert the direct current (DC) electricity generated by the solar panels into alternating current (AC) electricity that can be used to power our homes and businesses. Battery storage systems, on the other hand, store excess solar energy for later use, allowing us to use solar power even when the sun is not shining. When combined with solar inverters, battery storage systems can be charged using the excess energy generated by the solar panels during the day, and then discharge that stored energy during the night or during periods of high energy demand. To facilitate compatibility, solar inverters used in battery storage systems are equipped with additional features and functionalities. For example, they may have built-in charge controllers that regulate the charging and discharging of the batteries, ensuring their optimal performance and longevity. Additionally, advanced inverters may also include smart grid capabilities, allowing them to communicate with the utility grid and optimize energy flows based on grid conditions and electricity prices. Overall, solar inverters are essential components in ensuring the seamless integration of battery storage systems with solar power, enabling us to maximize the benefits of clean and sustainable energy.
- Q: The working principle of photovoltaic grid - connected inverter
- Full-bridge inverter circuit to overcome the shortcomings of the push-pull circuit, the power transistor to adjust the output pulse width, the output AC voltage RMS that changes. Since the circuit has a freewheeling circuit, even if the inductive load, the output voltage waveform will not be distorted. The disadvantage of this circuit is that the upper and lower arms of the power transistor are not common, so you must use a special drive circuit or use isolated power supply. In addition, in order to prevent the upper and lower arm co-conduction, must be designed to turn off after the conduction circuit, that must be set dead time, the circuit structure is more complex.
- Q: Can a solar inverter be used in areas with high seismic activity?
- Yes, a solar inverter can be used in areas with high seismic activity. However, it is essential to ensure that the solar inverter is designed to withstand seismic vibrations and has been installed using appropriate seismic-resistant mounting techniques. Special precautions and engineering considerations may be necessary to ensure the inverter's integrity and functionality during seismic events.
- Q: What is the role of a solar inverter in a solar panel system?
- The role of a solar inverter in a solar panel system is to convert the direct current (DC) electricity generated by the solar panels into alternating current (AC) electricity that can be used to power household appliances and be fed back into the electrical grid. It also ensures that the electricity produced by the solar panels is of the correct voltage and frequency for safe and efficient use in homes and businesses.
- Q: How does a solar inverter handle voltage fluctuations during grid disturbances?
- A solar inverter handles voltage fluctuations during grid disturbances by constantly monitoring the grid voltage. When it detects a fluctuation or disturbance, it adjusts its own output voltage accordingly to stabilize the power supply. This is done through advanced control algorithms that regulate the inverter's power conversion process, ensuring a stable and consistent voltage output despite grid instabilities.
- Q: How does a solar inverter handle partial shading on solar panels?
- A solar inverter handles partial shading on solar panels by utilizing a technique called Maximum Power Point Tracking (MPPT). MPPT allows the inverter to constantly monitor and adjust the voltage and current levels of each solar panel to ensure that it operates at its maximum power output despite shading. This is achieved by dynamically redistributing power between the shaded and unshaded panels, optimizing the overall energy generation of the entire solar array.
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250KW Solar Inverter Photovoltaic Grid-Connected Inverter SG40KTL
- Ref Price:
-
$3,310.00 - 5,500.00
/ unit
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50 unit
- Supply Capability:
- 10000 unit/month
OKorder Service Pledge
OKorder Financial Service
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