Wengart PV Surge Protective Device WG-G1000,3P,20-40kA

Photovoltaic surge protector (PV Surge Protective Device, referred to as PV SPD) is a device used to protect photovoltaic systems from transient overvoltage and surge current damage. It is mainly installed on the DC side of the photovoltaic system, between the photovoltaic module and the inverter, and on the AC side between the inverter and the grid. The main functions of the photovoltaic surge protector: Lightning protection: The photovoltaic system is susceptible to direct lightning strikes or induced lightning, generating high-amplitude, short-term surge voltage and current, which may damage photovoltaic modules, inverters and other equipment. The photovoltaic surge protector can limit these surge voltages and currents within a safe range to protect the system from damage.
Suppressing grid interference: Switching operations, capacitor switching and other events in the grid may generate transient overvoltages, which are transmitted to the DC side through the inverter and affect the normal operation of the photovoltaic system. The photovoltaic surge protector can suppress these interferences and ensure the stability of the system. Protect sensitive components: Some sensitive electronic components in the photovoltaic system, such as MPPT controllers, communication equipment, etc., are very sensitive to surge voltages. The photovoltaic surge protector can provide effective protection for these components and extend their service life. The main features of photovoltaic surge protectors: Fast response speed: The surge protector needs to respond quickly at the moment of the surge and limit the surge voltage below the safe value. Large current discharge capacity: The surge protector needs to have sufficient discharge capacity so that it can quickly conduct large currents to the ground when a surge occurs. Low residual voltage: When the surge protector is activated, the voltage remaining at the protected device should be as low as possible to reduce the impact on the equipment. Reusable: The surge protector should be able to work normally after multiple surge events and have a certain degree of reusability. Fault indication: The photovoltaic surge protector is equipped with a fault indication function. When the protector fails, it can be detected and replaced in time through the indicator light or remote monitoring system.