Satcon Solar Inverter SG3KTL-EC
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- 300000 unit/month
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1. Structure of Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Description
A solar inverter, or PV inverter, or Solar converter, converts the variable direct current (DC) output of a photovoltaic (PV) solar panel into a
utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a
critical 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.
2. Main Features of the Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
• Flexible design due to dual MPP tracking that is equipped to obtain full nominal power, 3-phase supply
• High energy yield due to maximum efficiency up to 98.1%
• Low noise levels and internal consumption due to natural cooling
• Integrated theft protection
• Access to Home WiFi system and enjoy cloud services via smart phones
• Integrated power management function, easy to receive the adjustable command from grid
• Extensive communication: RS-485, Ethernet, WLAN / WiFi, 4 digital inputs for ripple control receivers
• Product certification: TÜV, VDE 0126-1-1, EN 62109-1/-2, CE, G83/1, VDE-AR-N 4105
• Manufacturer certification: ISO 9001, ISO 14001, OHSAS 18000
3. Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Images
4. Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC Specification
Input Side Data | |
Max. PV input power | 3191W |
Max. PV input voltage | 1000V |
Startup voltage | 200V |
Nominal input voltage | 610V |
MPP voltage range | 140~900V |
MPP voltage range for nominal power | 160~800V |
No. of MPPTs | 2 |
Max. number of PV strings per MPPT | 1/1 |
Max. PV input current | 19.8A(9.9A/9.9A) |
Max. current for input connector | 10A |
Short-circuit current of PV input | 24.8A(12.4A/12.4A) |
Output Side Data | |
Nominal AC output power | 3000W |
Max AC output power（PF=1) | 3000W |
Max. AC output apparent power | 3000VA |
Max. AC output current | 4.4A |
Nominal AC voltage | 3/N/PE,230/400Vac |
AC voltage range | 310~480Vac(May vary as per corresponding country's grid standard) |
Nominal grid frequency | 50Hz |
Grid frequency range | 45~55Hz |
THD | < 3 % (Nominal power) |
DC current injection | <0.5 %In |
Power factor | >0.99@default value at nominal power, |
Protection | |
Anti-islanding protection | Yes |
LVRT | No |
DC reverse connection protection | Yes |
AC short circuit protection | Yes |
Leakage current protection | Yes |
DC switch | Integrated |
DC fuse | No |
Overvoltage protection | III |
System Data | |
Max. efficiency | 98.0% |
Max. European efficiency | 96.0% |
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 | Natural cooling |
Noise | ≤29dB |
Max. operating altitude | 2000m |
Display | Graphic LCD |
Communication | Ethernet,RS485（RJ45 connector）, |
DC connection type | MC4 |
AC connection type | Plug and play connector |
Certification | VDE0126-1-1,EN62109-1,EN62109-2, |
Mechanical Data | |
Dimensions（W×H×D） | 403×518×190mm |
Mounting method | Wall bracket |
Weight | 22kg |
5. FAQ of Solar Photovoltaic Grid-Connected Inverter SG3KTL-EC
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 role of a grid connection feature in a solar inverter?
- The role of a grid connection feature in a solar inverter is to enable the solar energy system to connect to the electricity grid. It allows for the transfer of excess energy generated by the solar panels back to the grid, thereby allowing the system to sell the surplus electricity or receive credits for it. Additionally, it ensures that the solar energy system can draw electricity from the grid when solar production is insufficient, ensuring a continuous and reliable power supply.
- Q: How does a solar inverter ensure safety during maintenance?
- A solar inverter ensures safety during maintenance by having various safety features and protocols in place. These may include automatic shutdown mechanisms that disconnect the inverter from the grid and solar panels, preventing any electrical current flow. In addition, many inverters have built-in monitoring systems that provide real-time information on voltage, current, and temperature, alerting maintenance personnel of any potential hazards. Proper labeling and clear instructions are also provided to ensure safe handling and maintenance procedures.
- Q: How do you calculate the payback period for a solar inverter?
- To calculate the payback period for a solar inverter, you need to determine the initial cost of the inverter and then calculate the annual savings or earnings generated by the inverter. Divide the initial cost by the annual savings to get the payback period, which is the time it takes to recoup the investment through savings or earnings.
- Q: What is maximum power point tracking (MPPT) in a solar inverter?
- Maximum power point tracking (MPPT) is a technique used in solar inverters to optimize the power output of a photovoltaic (PV) system. Solar panels generate electricity when exposed to sunlight, and their power output varies depending on factors such as temperature, shading, and the angle of incidence of sunlight. The maximum power point (MPP) is the point at which a solar panel generates the maximum amount of power for a given set of environmental conditions. However, since these conditions are constantly changing, it is essential to continuously track the MPP to ensure the highest possible power output from the solar panels. A solar inverter with MPPT functionality utilizes advanced algorithms and electronics to continuously monitor the voltage and current output of the solar panels. By dynamically adjusting the operating voltage and current to match the MPP, the MPPT inverter ensures that the solar panels operate at their highest efficiency, regardless of the changing environmental conditions. When the solar panels are operating at their MPP, the MPPT inverter extracts the maximum amount of power from the panels and converts it into usable AC power. This optimization leads to higher overall energy generation and maximizes the return on investment for solar power systems. In addition to improving efficiency, MPPT also offers other advantages. It can compensate for fluctuations in solar irradiation, temperature, or shading that may affect the power output of the panels. By continuously tracking the MPP, the MPPT inverter adjusts the operating parameters to mitigate the impact of these factors, ensuring a consistent and optimal power output. Overall, MPPT is a crucial feature in solar inverters as it maximizes the power output of a PV system by continuously tracking and adjusting the operating parameters to match the MPP. This technology enables solar power systems to operate at their highest efficiency, enhance energy generation, and maximize the benefits of utilizing renewable energy sources.
- Q: Can a solar inverter be used for three-phase power systems?
- Yes, a solar inverter can be used for three-phase power systems. There are specific three-phase solar inverters available in the market that are designed to convert DC power from solar panels into AC power for three-phase electrical grids. These inverters are capable of synchronizing with the grid and distributing power across all three phases efficiently.
- Q: Can a solar inverter be used in a community solar project?
- Yes, a solar inverter can be used in a community solar project. A solar inverter is an essential component of a community solar project as it converts the direct current (DC) electricity generated by the solar panels into alternating current (AC) electricity, which can be used by the community or fed back into the grid.
- Q: What is the role of a galvanic isolation circuit in a solar inverter?
- The role of a galvanic isolation circuit in a solar inverter is to provide a barrier of protection between the high-voltage DC input from the solar panels and the low-voltage AC output. It ensures electrical safety by isolating the input and output circuits, preventing any direct electrical connection or potential leakage current. This isolation helps to prevent electrical faults, ground loops, and potential damage to the solar inverter or connected equipment, while also reducing the risk of electrical shock.
- Q: Can a solar inverter be used with different solar panel brands?
- Yes, a solar inverter can be used with different solar panel brands as long as they have compatible voltage and current ratings. However, it is recommended to consult the manufacturer's specifications and guidelines to ensure optimal performance and compatibility.
- Q: How does a solar inverter handle shade on solar panels?
- A solar inverter handles shade on solar panels by employing a technology called Maximum Power Point Tracking (MPPT). MPPT allows the inverter to constantly monitor the output of each individual solar panel and adjust the voltage and current to maximize the power output. When shade is present on one or more panels, the inverter can dynamically optimize the power generation by bypassing the shaded panels or reducing their impact on the overall system performance.
- Q: How does a solar inverter provide ground fault protection?
- A solar inverter provides ground fault protection by continuously monitoring the flow of electricity between the solar panels and the electrical grid. If it detects any abnormal or excessive current leakage to the ground, it quickly shuts off the flow of electricity to prevent electrical hazards, such as electric shocks or electrical fires.
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Satcon Solar Inverter SG3KTL-EC
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50000 unit
- Supply Capability:
- 300000 unit/month
OKorder Service Pledge
OKorder Financial Service
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