Solar Load Controllers - Solar Street Light Controller with Two Time Setting + PWM
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 unit
- Supply Capability:
- 100000 unit/month
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(1)adopt advanced MCU design, conforming PWM charging controlling technology， with strong reliability and anti-disturb capability.
(2)Adopt solar energy as power source without waste of regular energy.
(3)Perfect protective and temperature compensate function to prevent the battery from over voltage or shortvoltage.
(4)With perfect capability, to protect acid battery from over discharge
(5)It can restart electrodeless lamp, the controller can restart itself to make sure electrdeless lamp under normal working status when electrodeless lamp is not able to turn on
(6)work under diferent surroundings.
(7)Memory function: startup load mode and main circuit’s working time can be reached by setting with outer keys. After setting, the time will be saved in memorizer. The data will not disappear even battery is disconnected with controller.
Technical parameter
MODEL SKC05 SKC10 SKC15 SKC20
Max.solar panel current 5A 10A 15A 20A
Max.load current 5A 10A 15A 20A
Use voltage 12V/24V,automatic recognition
No-load current ≤6 mA
Overvoltage protection of battery 17V(12V)， 34V/24V；
Ambient temperature range： -35℃--+55℃
Boost voltage 14.6V(12V), 29.2V/(24V)
Equalization voltage 14.4V(12V), 28.8/(24V)
Float voltage 13.6V(12V), 27.2V/(24V)
Recharge voltage 13.2V(12V)； 26.4/(24V)；
Temperature compensation 5mv/℃/2V
Undervoltage of battery 12V(12V)； 24V/(24V)
Low voltage disconnect 11V(12V)； 22/24V；
Load reconnect voltage 12.6V（12V), 25.2/（24V）
Charge control mode PWM
- Q: How does a solar controller prevent battery over-discharge?
- A solar controller prevents battery over-discharge by constantly monitoring the voltage level of the battery. When the voltage drops below a certain threshold, the controller disconnects the battery from the solar panel to prevent further discharge. This ensures that the battery is not depleted beyond its safe operating level, prolonging its lifespan and avoiding any potential damage.
- Q: What is the role of a solar controller in preventing damage to the solar panels from lightning strikes?
- To prevent damage to solar panels from lightning strikes, a solar controller serves as a protective shield, separating the panels from the electrical surges generated by lightning. Functioning as a charge controller, the solar controller regulates the flow of electricity from the panels to the battery or grid. When lightning strikes, a significant amount of electrical energy is discharged, posing a threat to electronic devices, including solar panels. The solar controller plays a pivotal role in safeguarding the panels by implementing various protective mechanisms. Firstly, the solar controller typically incorporates surge protection features capable of identifying and diverting excessive voltage resulting from lightning strikes. Acting as a buffer, it prevents the surge from reaching and harming the panels. By absorbing and dissipating the surplus energy, the controller ensures a stable and safe voltage level for the panels. Moreover, advanced solar controllers may include grounding systems. These systems establish a low-resistance pathway for electrical surges to travel safely into the ground, avoiding contact with the solar panels altogether. By redirecting the electrical energy produced by lightning away from the panels, the controller minimizes the risk of damage. Furthermore, solar controllers often possess built-in monitoring capabilities. They can detect alterations in electrical parameters, such as voltage or current, and swiftly respond to abnormal conditions. In the event of a lightning strike or surge, the controller can temporarily shut down the system to safeguard the panels until the threat has subsided. In essence, the solar controller serves as a critical defense against lightning strikes, preventing harm to solar panels by diverting, dissipating, or grounding excessive electrical energy. Its surge protection, grounding, and monitoring features collaborate to shield the panels and ensure their durability and efficiency.
- Q: Can a solar controller be used with solar-powered outdoor lighting?
- Yes, a solar controller can be used with solar-powered outdoor lighting. A solar controller helps regulate the charging and discharging of batteries in the outdoor lighting system, ensuring optimal performance and prolonging battery life. It helps manage the flow of energy from the solar panels to the batteries and controls the lighting operation based on available sunlight.
- Q: What are the advantages and disadvantages of a PWM solar controller?
- Advantages: 1. PWM solar controllers excel in efficiently converting solar energy into usable electricity through their high energy conversion efficiency. This maximizes the power output from solar panels. 2. Cost-effectiveness is a notable advantage of PWM solar controllers, making them a preferred choice for smaller solar installations or individuals with budget constraints. 3. Simplicity characterizes the design and functionality of PWM solar controllers. They are easy to install and operate, making them suitable for DIY solar projects or individuals with limited technical knowledge. 4. Battery protection is a built-in feature of PWM solar controllers, safeguarding connected batteries by preventing overcharging, over-discharging, and reverse current flow. This extends the lifespan of batteries. 5. PWM solar controllers are compatible with various battery types, including lead-acid, gel, and AGM batteries. This versatility allows users to select the battery type that best meets their requirements. Disadvantages: 1. PWM controllers lack the ability to regulate the voltage output from solar panels, unlike MPPT solar controllers. This can result in lower power generation when the solar panel voltage does not match the battery voltage. 2. PWM solar controllers may struggle to efficiently charge batteries in low light or overcast conditions, leading to potential power loss due to their reduced effectiveness in harvesting energy from weak sunlight. 3. PWM solar controllers are best suited for small to medium-sized solar systems, limiting their scalability. Expanding the solar array in the future may require upgrading to an MPPT controller, which can handle higher power capacities more efficiently. 4. Heat dissipation is a concern with PWM solar controllers as they tend to generate more heat compared to MPPT controllers. This can reduce efficiency and potentially impact the controller's lifespan if not managed properly. 5. While reliable and effective, PWM controllers lack advanced features found in MPPT controllers such as remote monitoring, data logging, and advanced battery management options.
- Q: Can a solar controller be used in a solar-powered street lighting system?
- Yes, a solar controller can be used in a solar-powered street lighting system. A solar controller is an essential component that manages the charging and discharging of batteries in a solar system. In a solar-powered street lighting system, the solar controller ensures the batteries are charged efficiently during the day and controls the power supply to the street lights during the night, optimizing energy usage and ensuring reliable operation.
- Q: How does a solar controller handle electromagnetic interference?
- A solar controller is designed to handle electromagnetic interference (EMI) by employing various techniques and components. EMI can be generated by nearby electronic devices, power lines, or radio frequency sources, and it can negatively impact the performance and reliability of the solar controller. One of the primary methods used by a solar controller to mitigate EMI is through the use of shielding. The controller is typically enclosed in a metal or conductive enclosure that acts as a shield, preventing external electromagnetic waves from interfering with the internal circuitry. This shielding helps to contain the electromagnetic fields generated by nearby sources and prevents them from affecting the controller's operation. In addition to shielding, a solar controller incorporates various filtering components to suppress EMI. These components, such as capacitors, inductors, and ferrite beads, are strategically placed within the controller's circuitry to attenuate and absorb unwanted electromagnetic energy. They act as barriers, blocking or redirecting high-frequency noise and preventing it from reaching sensitive components. Furthermore, the design and layout of the solar controller's circuit board play a crucial role in handling EMI. Proper grounding techniques and careful routing of signal traces help to reduce the susceptibility of the controller to electromagnetic interference. Ground planes and signal isolation techniques are employed to minimize the coupling of unwanted electromagnetic energy into the controller's internal circuitry. To ensure compliance with EMI regulations and standards, solar controllers are typically subjected to rigorous testing and certification processes. These tests evaluate the controller's ability to withstand and operate correctly in the presence of electromagnetic interference. Compliance with these standards ensures that the solar controller performs reliably and does not introduce harmful interference into other electronic devices. In summary, a solar controller handles electromagnetic interference by utilizing shielding, filtering components, proper circuit board design, and compliance with EMI regulations. These measures collectively minimize the impact of external electromagnetic waves and ensure the reliable operation of the solar controller in various environments.
- Q: Can a solar controller be used with a grid-tied solar system?
- No, a solar controller cannot be used with a grid-tied solar system.
- Q: Can a solar controller be used with a solar water heating system?
- Yes, a solar controller can be used with a solar water heating system. A solar controller is responsible for regulating and controlling the flow of energy between the solar panels and the water heating system. It helps optimize the performance of the system by monitoring temperatures, controlling pumps or valves, and providing data on energy production.
- Q: What is the maximum voltage drop allowed between the solar panels and the load?
- The maximum voltage drop allowed between the solar panels and the load depends on several factors such as the specific application, the distance between the panels and the load, and the electrical requirements of the load. In general, it is advisable to minimize voltage drop as much as possible to ensure maximum efficiency and performance of the solar power system. A higher voltage drop can lead to power loss, reduced output, and decreased overall system effectiveness. For most solar installations, a commonly accepted maximum voltage drop is around 2-3% of the total system voltage. This means that if the solar panels are operating at 100 volts, the maximum voltage drop allowed would be around 2-3 volts. However, it is important to note that specific guidelines and requirements may vary depending on the application and local electrical codes. It is recommended to consult with a qualified solar installer or engineer who can assess the specific parameters of the system and provide accurate guidance on the maximum voltage drop allowed for that particular setup.
- Q: What is the purpose of the battery over-discharge protection feature on a solar controller?
- The battery over-discharge protection feature on a solar controller serves the purpose of safeguarding the battery from damage caused by excessive discharge. This feature ensures that the battery does not go below a specific voltage threshold, as over-discharging can result in irreversible harm, reduced capacity, and a shorter lifespan. Continuous monitoring of the battery voltage by solar controllers enables the activation of the over-discharge protection feature when the voltage reaches a predetermined low level. This feature effectively cuts off the power supply from the solar panels to the battery, preventing any further discharge. Consequently, the battery is protected from excessive drainage, which could otherwise lead to permanent damage. The implementation of battery over-discharge protection by solar controllers not only extends the battery's lifespan but also ensures optimal performance. This is particularly crucial in off-grid solar systems where batteries serve as the primary source of energy storage. Without this protection feature, the battery would be subjected to deep discharge cycles, resulting in decreased efficiency and overall system performance. In conclusion, the battery over-discharge protection feature on a solar controller serves to prevent battery damage, increase its lifespan, and maintain the efficiency of the solar system.
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Solar Load Controllers - Solar Street Light Controller with Two Time Setting + PWM
- Ref Price:
-
- Loading Port:
- Shekou
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 unit
- Supply Capability:
- 100000 unit/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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