What Are The Working Principles And Advantages Of Surge Protectors?
surge protective device are widely used today, but many people are unfamiliar with their working principle, only knowing that they protect electronic equipment. Below, we'll focus on understanding the principle and advantages of this device.
Working Principle of Surge Protectors
Surge protectors are crucial for lightning protection of electronic equipment. Under normal conditions, the equipment maintains a high resistance, allowing the system to operate normally. However, when subjected to a strong external current or voltage surge, the equipment's resistance drops, allowing it to conduct within nanoseconds, discharging the overcurrent and overvoltage to ground. After the surge, the surge protector quickly returns to its original high resistance state, without affecting the system or the normal operation of the equipment.
Features of Surge Protectors
1. Optional remote signaling terminal alarm function, enabling remote alarm monitoring.
2. High withstand capacity, capable of withstanding a lightning current surge of up to 120kA (8/20μs) without any malfunction.
3. Surge protectors have an extremely fast response speed, completing the entire action in less than 25 ns. Many people don't have a concept of the nanosecond (ns) unit of time; one second equals one billion nanoseconds, which demonstrates the protector's incredibly fast response.
The above is an introduction to the working principle, features, and advantages of surge protection device. The device's surface uses a flame-retardant shell design, making installation easier and ensuring the safe operation of the equipment itself.
