Photovoltaic SPD Principles, a Chance to Gain Knowledge is Here!

Photovoltaic SPD is a device used to prevent photovoltaic systems from surge damage. The principle is based on surge protection technology, mainly protecting the working status of photovoltaic systems through the following principles.

Photovoltaic SPD principles

Surge Absorption

Photovoltaic SPD contains one or more surge absorbers (such as gas discharge tubes, diodes, etc.). When a surge occurs in the photovoltaic system, the surge protector directs the surge into the surge absorber, absorbing and dissipating surge energy through rapid discharge to protect the devices and components within the photovoltaic system.

Surge Dispersion

The surge protector also has the ability to disperse surges. When a surge enters the surge protector, its internal circuit structure can disperse the surge into different circuit paths, reducing the impact of the surge on a single circuit. This can protect key equipment and components in the photovoltaic system, reducing the impact of surges on the system.

Surge Circuit Break

Some Photovoltaic SPD also have a surge circuit break function. When the surge reaches a certain level, the surge protector will automatically break the circuit, preventing the surge from continuing to conduct to the system's equipment. This circuit break protection can effectively prevent surge damage to the equipment and protect the system's safety.

Photovoltaic SPD Working State

Normal Working State

Under normal circumstances, Photovoltaic SPD is in standby mode. When no surge event occurs, the protector is in a normal working state. It monitors the voltage and current of the photovoltaic system, maintaining real-time monitoring of the system without performing any surge protection actions.

Surge Protection State

When a surge event occurs in the photovoltaic system, Photovoltaic SPD will respond immediately and perform surge protection actions. It will direct the surge to the internal surge absorber or dispersion circuit, protecting the devices and components within the photovoltaic system through absorption, dispersion, or circuit breaking. After the surge event ends, the protector will automatically return to the normal working state to continue monitoring the photovoltaic system.

Photovoltaic SPD working state mainly depends on whether a surge event occurs in the photovoltaic system. It can quickly respond to surge events and take corresponding protection measures to safeguard the safe operation of the photovoltaic system. Under normal circumstances, it is in standby mode and does not affect the system. It only enters the surge protection state when a surge event occurs, protecting the system from surge damage.

In summary, Photovoltaic SPD uses principles such as surge absorption, dispersion, and circuit breaking to protect photovoltaic systems from surge damage. It can quickly respond to surge events, absorbing and dispersing surge energy to protect key equipment and components of the photovoltaic system, improving the system's stability and reliability.