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 upgraded or expanded?
- Yes, a solar inverter can be upgraded or expanded. Upgrades may involve adding new features or improving the efficiency of the existing inverter. Expansion typically refers to increasing the capacity of the inverter to accommodate additional solar panels. However, the extent to which an inverter can be upgraded or expanded varies depending on the specific model and manufacturer.
- Q: What is the typical lifespan of the capacitors in a solar inverter?
- The typical lifespan of capacitors in a solar inverter can vary depending on various factors such as the quality of the capacitors, operating conditions, and maintenance practices. However, on average, capacitors in a solar inverter are expected to have a lifespan of around 10 to 15 years.
- Q: Can a solar inverter be used with different types of solar cell technologies?
- Yes, a solar inverter can be used with different types of solar cell technologies. Solar inverters are designed to convert the direct current (DC) produced by solar cells into alternating current (AC) that can be used to power homes and businesses. They are typically compatible with various solar cell technologies, such as monocrystalline, polycrystalline, thin-film, and hybrid solar cells. This versatility allows the solar inverter to work efficiently with different types of solar panels, maximizing the energy production from the solar system.
- Q: What is the difference between a transformerless inverter and a transformer-based inverter?
- A transformerless inverter and a transformer-based inverter differ primarily in their design and functionality. A transformerless inverter, as the name suggests, does not include a transformer in its circuitry. Instead, it uses advanced semiconductor components, such as insulated-gate bipolar transistors (IGBTs), to convert the direct current (DC) power from a source like solar panels into alternating current (AC) power for use in homes or businesses. The absence of a transformer allows for a more compact and lightweight design, making transformerless inverters ideal for space-constrained installations. However, due to the lack of galvanic isolation, transformerless inverters may have slightly less electrical safety compared to transformer-based inverters. On the other hand, a transformer-based inverter incorporates a transformer as an integral part of its circuitry. This transformer serves multiple purposes, including galvanic isolation, voltage step-up or step-down, and impedance matching. Galvanic isolation is particularly important as it provides a barrier between the input and output of the inverter, offering enhanced electrical safety and protection against electrical shocks. The presence of a transformer also helps to stabilize the output voltage, making transformer-based inverters more suitable for applications with sensitive electronics or where grid synchronization is critical. In summary, while transformerless inverters offer compactness and lightweight design, transformer-based inverters provide better electrical safety and stability. The choice between the two depends on the specific application requirements, space availability, and the level of electrical safety desired.
- Q: Can a solar inverter be used with a ground-mounted solar array?
- Yes, a solar inverter can be used with a ground-mounted solar array. In fact, ground-mounted solar arrays are commonly used with solar inverters to convert the direct current (DC) generated by the solar panels into alternating current (AC) that can be used to power homes and buildings.
- Q: Can a solar inverter be used with a solar-powered backup generator?
- Yes, a solar inverter can be used with a solar-powered backup generator. A solar inverter is responsible for converting the DC (direct current) electricity generated by solar panels into AC (alternating current) electricity that can be used to power household appliances and other electrical devices. A solar-powered backup generator, on the other hand, uses solar energy to charge its batteries or store excess electricity. When the solar panels are generating electricity, the solar inverter will convert the DC electricity into AC electricity, which can be used directly in the household or sent back to the grid if the system is connected to it. If there is excess electricity being generated and the batteries of the solar-powered backup generator are fully charged, the solar inverter can divert the excess electricity to other loads or devices. During periods when solar energy is insufficient or not available, the solar-powered backup generator can kick in and provide the necessary electricity to power the house or recharge the batteries. In this case, the solar inverter will still be responsible for converting the DC electricity generated by the solar-powered backup generator into AC electricity. So, to summarize, a solar inverter can definitely be used with a solar-powered backup generator to ensure a continuous supply of electricity even when solar energy is limited.
- Q: What are the communication protocols used in solar inverters?
- There are several communication protocols commonly used in solar inverters to facilitate communication between the inverter and other devices or systems. Some of the most commonly used communication protocols in solar inverters include: 1. Modbus: Modbus is a widely used communication protocol for industrial devices, including solar inverters. It is a serial communication protocol that allows for the transmission of data between the inverter and other devices, such as monitoring systems or data loggers. Modbus is known for its simplicity and flexibility, making it a popular choice in the solar industry. 2. SunSpec: SunSpec is a communication protocol specifically designed for the solar industry. It provides a standardized way for solar inverters to communicate with other devices, such as smart meters or monitoring systems. SunSpec supports both wired and wireless communication, allowing for easy integration of solar inverters into larger energy management systems. 3. CAN bus: CAN (Controller Area Network) bus is a widely used communication protocol in various industries, including automotive and industrial applications. It is a robust and reliable protocol that allows for high-speed communication between devices. Some solar inverters utilize CAN bus to communicate with other devices or systems, providing a reliable means of data transfer. 4. Ethernet: Ethernet is a widely used communication protocol in the IT industry, and it is also utilized in some solar inverters. By using Ethernet, solar inverters can communicate with other devices or systems over a local area network (LAN) or the internet. Ethernet offers high-speed communication and can support various communication standards, making it a versatile option for solar inverters. It's important to note that different solar inverter manufacturers may use different communication protocols or a combination of them. The choice of communication protocol depends on factors such as the specific requirements of the system, the compatibility with other devices or systems, and the level of integration desired.
- Q: What is the lifespan of the capacitors in a solar inverter?
- The lifespan of capacitors in a solar inverter can vary depending on several factors such as the quality of the capacitors, the operating conditions, and the overall design of the inverter. However, on average, high-quality capacitors in a well-designed solar inverter can have a lifespan of around 10 to 15 years. Regular maintenance and proper usage can help extend the lifespan of the capacitors in a solar inverter.
- Q: Can a solar inverter be used with solar-powered emergency backup systems?
- Yes, a solar inverter can be used with solar-powered emergency backup systems. The solar inverter converts the direct current (DC) generated by the solar panels into alternating current (AC), which can be used to power various appliances and equipment during emergencies. This allows for the efficient utilization of solar energy stored in batteries to provide backup power when the grid is down.
- Q: How does a solar inverter handle power quality issues in the grid?
- A solar inverter handles power quality issues in the grid by continuously monitoring the electricity it receives from the grid. If it detects any power quality issues such as voltage fluctuations, harmonics, or frequency variations, it employs various techniques to mitigate these issues. These techniques include voltage regulation, reactive power compensation, filtering, and synchronization with the grid. By actively managing these power quality issues, a solar inverter ensures that the electricity it feeds into the grid is of high quality and complies with the grid's standards and requirements.
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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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