Photovoltaic Grid-Connected Inverter SG50KTL-M
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- 3000000 unit/month
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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 power（PF=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 | |
Dimensions（W×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 voltage regulation during sudden load changes?
- A solar inverter handles voltage regulation during sudden load changes by continuously monitoring the voltage levels and adjusting the power output accordingly. When there is a sudden increase in load, the inverter will automatically increase its power output to meet the demand and maintain a stable voltage. Conversely, if there is a sudden decrease in load, the inverter will reduce its power output to prevent voltage spikes and maintain a consistent voltage level. This dynamic response allows the solar inverter to effectively regulate voltage during sudden load changes and ensure the stability and reliability of the solar power system.
- Q:How does shading impact the performance of a solar inverter?
- Shading has a significant impact on the performance of a solar inverter. When even a small portion of a solar panel is shaded, it can drastically reduce the overall power output. This is because shading disrupts the flow of sunlight, causing a drop in voltage and current production. Consequently, the solar inverter's performance is compromised as it relies on a consistent and unobstructed energy supply from the solar panels. To mitigate the effects of shading, techniques like bypass diodes or micro-inverters are employed to minimize the impact of shading on the overall solar system performance.
- Q:What is the maximum AC voltage that a solar inverter can provide?
- The maximum AC voltage that a solar inverter can provide depends on the specifications of the specific inverter model. However, for most common residential and commercial solar inverters, the maximum AC voltage typically ranges between 208 and 240 volts.
- Q:How does a solar inverter handle voltage regulation?
- A solar inverter handles voltage regulation by constantly monitoring the voltage from the solar panels and adjusting its output voltage accordingly. It ensures that the voltage produced by the panels matches the required voltage for the electrical grid or the connected devices. This regulation is crucial to maintain stable and reliable power supply, protect the equipment from voltage fluctuations, and ensure optimal energy conversion efficiency.
- Q:What is the difference between a transformerless inverter and a transformer-based inverter?
- A transformerless inverter does not include a transformer in its design, while a transformer-based inverter incorporates a transformer as an integral component. The main difference lies in their electrical isolation capabilities and overall system efficiency. Transformerless inverters use circuitry to achieve electrical isolation, which can result in higher efficiency and reduced size. On the other hand, transformer-based inverters employ a physical transformer for isolation, which offers better safety and protection against electrical noise and voltage fluctuations.
- Q:How is the output voltage of a solar inverter regulated?
- The output voltage of a solar inverter is regulated through the use of control circuitry and power electronics components. These components monitor the input voltage from the solar panels and adjust the output voltage to meet the desired specifications. The control circuitry ensures that the output voltage remains stable and within the required range, even when there are fluctuations in the input voltage or varying load conditions.
- Q:How does a solar inverter handle power factor optimization?
- A solar inverter handles power factor optimization by ensuring that the power generated by the solar panels is synchronized with the grid's voltage and frequency. It adjusts the power factor by actively controlling the flow of current between the solar panels and the grid, allowing for efficient power transfer and minimizing reactive power consumption.
- Q:How does a solar inverter convert DC power into AC power?
- A solar inverter converts DC power into AC power through a two-step process. Firstly, it uses a semiconductor component called a power switch to chop the DC input voltage into small pulses. Then, it employs a filter to smooth out these pulses, transforming them into a continuous waveform, which is the desired AC output power. This conversion enables the solar inverter to supply electricity that is compatible with standard AC appliances and can be used in homes, businesses, and the electrical grid.
- Q:How do you connect a solar inverter to the electrical grid?
- To connect a solar inverter to the electrical grid, you typically follow these steps: 1. Install the solar panels: First, mount the solar panels on the roof or another suitable location to capture sunlight and generate DC (direct current) electricity. 2. Connect the solar panels to the inverter: Use appropriate wiring and connectors to connect the DC output of the solar panels to the input terminals of the solar inverter. 3. Install a suitable breaker: Install a dedicated circuit breaker between the inverter and the electrical panel to protect against electrical faults and overloads. 4. Connect the inverter to the electrical panel: Use appropriate wiring and connectors to connect the AC (alternating current) output of the inverter to the electrical panel. 5. Obtain necessary permits and inspections: Check with your local authorities to ensure compliance with regulations and obtain any required permits. Arrange for inspections to ensure the installation meets safety standards. 6. Activate the inverter: Follow the manufacturer's instructions to activate and configure the inverter according to your system specifications. 7. Connect to the electrical grid: If permitted in your area, arrange for a licensed electrician or utility company to connect the inverter to the electrical grid. This step may involve installing a bi-directional meter and completing paperwork. Once connected, the solar inverter converts the DC electricity generated by the solar panels into AC electricity suitable for use in your home or to feed excess power back into the grid.
- Q:Can a solar inverter be used with a solar-powered food dehydrator?
- Yes, a solar inverter can be used with a solar-powered food dehydrator. A solar inverter is responsible for converting the direct current (DC) generated by solar panels into alternating current (AC) that is suitable for powering household appliances. Since a food dehydrator operates on AC power, using a solar inverter allows the solar energy captured by the panels to be utilized effectively in powering the dehydrator.
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Photovoltaic Grid-Connected Inverter SG50KTL-M
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 500000 unit
- Supply Capability:
- 3000000 unit/month
OKorder Service Pledge
OKorder Financial Service
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