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: Can a solar inverter be used in areas with high humidity and salt air exposure?
- Yes, a solar inverter can be used in areas with high humidity and salt air exposure. However, it is important to choose a solar inverter that is specifically designed for such conditions, as these factors can potentially impact the performance and lifespan of the inverter. It is advisable to consult with a professional to ensure the selection of a suitable solar inverter for areas with high humidity and salt air exposure.
- Q: How does a solar inverter handle voltage and frequency variations caused by switching operations?
- A solar inverter handles voltage and frequency variations caused by switching operations through the use of advanced control algorithms and circuitry. It continuously monitors the input voltage and frequency from the solar panels and adjusts its own output voltage and frequency accordingly. This ensures that the power generated by the solar panels is efficiently converted into usable AC power that matches the grid requirements. The inverter's voltage and frequency control mechanisms help maintain a stable and consistent power supply, even in the presence of switching operations or fluctuations in the solar panel output.
- Q: What is the role of a grid monitoring feature in a solar inverter?
- The role of a grid monitoring feature in a solar inverter is to constantly monitor the electrical grid to ensure that the solar power generated by the inverter is synchronized with the grid's voltage and frequency. This feature enables the inverter to safely and efficiently inject solar power into the grid, while also providing protection against grid faults and ensuring compliance with grid regulations.
- Q: What is the efficiency rating of a solar inverter?
- The efficiency rating of a solar inverter refers to the percentage of solar energy that is converted into usable electricity. It is a measure of how effectively the inverter can convert the direct current (DC) output from the solar panels into alternating current (AC) electricity that can be used to power household appliances or be fed back into the grid. The higher the efficiency rating, the more efficient the inverter is at converting solar energy into electricity.
- Q: How does a solar inverter protect against short circuits?
- A solar inverter protects against short circuits by monitoring the electrical current flow and detecting any abnormal increase in current caused by a short circuit. Once a short circuit is detected, the inverter immediately shuts down the power output to prevent any damage to the solar panels, the inverter itself, or the electrical system.
- Q: Can a solar inverter be used with a solar-powered security camera system?
- Yes, a solar inverter can be used with a solar-powered security camera system. A solar inverter is responsible for converting the direct current (DC) produced by solar panels into alternating current (AC) that can be used to power electrical devices, including security cameras. By connecting the solar panels to a solar inverter, the generated solar energy can be efficiently utilized to power the security camera system.
- Q: How does a solar inverter convert DC to AC power?
- A solar inverter converts direct current (DC) power generated by solar panels into alternating current (AC) power that can be used in households and businesses. It does this through a two-step process. Firstly, the DC power from the solar panels is converted into a high-frequency AC power using power electronic switches, usually in the form of transistors. This high-frequency AC power is then transformed into a stable AC power with the desired voltage and frequency using transformers and filters. Overall, the solar inverter ensures that the DC power generated by the solar panels is converted into a usable AC power that can be fed into the electrical grid or consumed directly.
- Q: Are there any disadvantages of using a solar inverter?
- Yes, there are some disadvantages of using a solar inverter. One disadvantage is the initial cost of purchasing and installing the inverter, which can be quite expensive. Additionally, solar inverters are dependent on sunlight, so if there is a lack of sunlight or during nighttime, the inverter may not be able to generate electricity. Another potential disadvantage is the need for regular maintenance and potential repairs, which can add to the overall cost of using a solar inverter. Finally, the efficiency of solar inverters can be affected by factors such as shading, dust, or dirt on the solar panels, which can decrease their overall performance.
- Q: How does the power factor correction affect the performance of a solar inverter?
- Power factor correction (PFC) plays a significant role in improving the performance of a solar inverter. By correcting the power factor, the inverter can efficiently convert DC power from the solar panels into AC power for use in homes or the grid. A high power factor ensures that the inverter operates at its maximum capacity, reducing power losses and improving overall energy efficiency. Additionally, a well-corrected power factor minimizes harmonic distortion, resulting in a stable and reliable operation of the solar inverter.
- Q: What are the advantages of using a transformerless solar inverter?
- One advantage of using a transformerless solar inverter is increased efficiency. Transformerless inverters have a higher efficiency rating compared to inverters with transformers, which means more of the solar energy is converted into usable electricity. Additionally, transformerless inverters are lighter and more compact, making them easier to install and transport. They also tend to have a longer lifespan and require less maintenance compared to inverters with transformers.
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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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