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Auto Recloser: Enhancing the Efficiency of Photovoltaic Charging Piles

2023/04/19 丨Technical

As the world shifts to sustainable renewable energy sources, the use of renewable energy sources such as solar power is becoming increasingly popular. Photovoltaic (PV) charging stations are one such application of solar energy that uses PV panels to generate electricity, which is then used to charge electric vehicles.


An important application of PV technology is the electric vehicle (EV) charging infrastructure. However, the use of PV charging piles presents special challenges, such as protecting the charging piles from faults and short circuits that can damage the charging piles and put users at risk. To ensure the maximum efficiency of these charging systems, automatic recloser technology provides an effective solution to these problems. An automatic recloser is a type of circuit breaker that can protect PV charging piles from these problems. Automatic reclosers automatically reset after a short circuit or overload, helping to keep the system operating and prevent damage.


What is Auto Recloser?


Automatic reclosers are intelligent electronic devices that automatically restore a connection after a temporary fault, such as a short circuit or overcurrent, in a power distribution system. Auto reclosers are typically installed in distribution systems to minimize the effects of power outages, reduce response time for fault detection, and improve overall system reliability.


Connection of the Auto Reclosers and Photovoltaic Charging Piles


Photovoltaic (PV) charging piles are electric vehicle (EV) charging stations that use solar energy to charge electric vehicles. These stations consist of solar panels, inverters, chargers, etc. Given the intermittent nature of solar energy and the increasing demand for electric vehicle charging, it is important that these systems can efficiently handle interruptions.


Automatic reclosers help solve this problem. Auto reclosers can be integrated into PV charging infrastructure to improve its stability and reliability. They can also quickly disconnect and reconnect charging circuits in the event of faults or overloads. They work by continuously monitoring the system for faults or anomalies. So if a power surge occurs, the auto recloser temporarily disconnects the circuit to protect the chargers. Once the power level is stable again, the automatic recloser automatically reconnects the circuit. This ensures a steady and uninterrupted flow of power to the charging station. It then automatically attempts to reconnect after a predefined period to ensure that the system continues to run with minimal interruption.


Benefits of Using Auto Reclosers in PV Charging Piles


Improves System Reliability: Provide an additional level of fault and short circuit protection. The automatic recloser button temporarily interrupts the charging circuit in the event of a power surge or dip, then automatically reenergizes it once power has stabilized. Auto recloser prevents widespread failures by quickly detecting and isolating faults, ensuring that the PV charging station remains operational for as long as possible.


Reduced Maintenance Costs: Because the auto recloser resets itself, no manual intervention is required after a malfunction. The automatic recloser automatically turns the system back on after a temporary outage, protecting expensive charging equipment such as inverters and charge controllers from damage caused by power fluctuations. This saves you time and maintenance costs.


Improved Grid Stability: The integration of automatic reclosers in PV charging piles helps maintain grid stability by preventing voltage fluctuations and harmonics that can result from sudden disconnections. The auto recloser protects components such as inverters, charge controllers, and other hardware from damage by avoiding the risk of electric shocks and arc discharges that can result from unstable voltage levels.


Optimized Energy Management: As soon as the power has stabilized, the auto recloser function quickly reconnects the charging circuit to make optimum use of the available solar energy. The auto recloser can be programmed to prioritize certain loads or network segments, resulting in better power management and distribution.


Data Collection and Analysis: Automatic reclosers often component advanced communications and data analysis capabilities. This helps operators monitor system performance, identify trends and make data-driven decisions to optimize charging infrastructure.


Choose the Right Auto Reclosers in PV Charging Pole


When selecting an auto recloser for a PV charging station, several factors must be considered. These include the voltage and current ratings of the charging pole and the type of fault protection required. In addition, the automatic recloser should be designed to withstand the harsh environmental conditions typically found in outdoor PV systems, such as extreme temperatures. In addition, auto reclosers should be inspected and maintained regularly to ensure that they are functioning properly.


Matismart Auto Reclosers in PV Chargin Station


Matismart's new MT53 auto recloser has these functions and can satisfy customers who want to install a PV charging station in their homes. This auto recloser has both overload and underload voltage protection, which can interface with terrible situations. It is designed with a compact type of 18mm and has dry contact, RS485, DC24V, 48V, and 60V are options. MT53 recloser can be matched with MCB, RCCB, and RCBO from Chint, Nader, Schneider, etc. Besides, if you have any functions that you want to customize, we appreciate designing and making unique products for you.




In summary, installing automatic reclosers in PV charging piles can improve the safety and reliability of the system and reduce maintenance costs. As demand for electric vehicles and renewable energy continues to grow, automatic reclosing systems will play an increasingly important role in maintaining a robust and sustainable charging infrastructure. By protecting chargers and optimizing power consumption, they help maximize the potential of these solar-based EV charging solutions.

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