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What is the basic principle of SPD remote signal terminal and how does it achieve communication? Dec 11 , 2025
The remote signal terminal of the surge protection device is the key interface for remote monitoring of the SPD status. Its core function is to convert the SPD operating status (such as normal, faulty, tripped, etc.) into a transmittable electrical signal and transmit it to the remote monitoring system (such as the distribution automation system, computer room monitoring system, etc.), thereb...
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What is SPD energy coordination? Dec 17 , 2025
The so-called energy coordination means that when multiple levels of SPDs or protective elements have different discharge capacities and are used together, the lightning current must be reasonably distributed to ensure that the SPDs or elements with smaller discharge capacities are not damaged. As shown in the figure below, SPD1 has a high discharge capacity and a high residual voltage, while SPD2...
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Application Sharing: Selection, Installation, and Maintenance of Surge Protection device Dec 25 , 2025
Sudden electrical malfunctions, unexplained equipment damage, and even occasional electrical fires are often related to "transient overvoltages," commonly known as "surges." These invisible "electrical shocks" can be caused by lightning strikes, turning appliances on or off, or interference from the power grid, making them "invisible killers" for electrical equipment. Surge protection device ...
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