Monitoring system integrated lightning protection lightning protection device selection is very important

Whether in the work, life or the private sector, our reliance on electrical and electronic products is increasing. In the company and the organization, the data network is an important lifeline for real-time information exchange, and it requires a reliable operating transmission path.

"Lightning protection" has become a hot topic in these two years. With the development and popularization of electronic products, according to statistics of insurance (rest assured) company related data, direct or indirect lightning strikes will cause greater and greater losses to the equipment. At present, lightning strikes on industrial equipment, communication devices, transportation facilities, financial institutions, and buildings cause damage to equipment and even threaten personal safety.

Lightning strike is a natural phenomenon, it can release a huge amount of energy, has a very strong destruction capability. The people who have been working on power generation and power equipment research have been through research and exploration on the destructiveness of lightning strikes, and have taken certain precautionary measures against the hazards of lightning, effectively reducing the damage caused by lightning.

When the lightning discharge path does not pass through the lightning protection device, a powerful transient electromagnetic field is generated in the discharge process to induce a strong electromagnetic pulse in a nearby conductor, which is called an induced lightning. Inductive lightning can invade conductors through two different sensing methods. One is that when a charge accumulates in a thundercloud, nearby conductors will induce the opposite charge. When the lightning strikes, the charge in the thundercloud will be released quickly. The electrostatic charge in the conductor will also look along the conductor after losing the thundercloud electric field. The release of the channel creates electrostatic induction in the circuit, followed by the rapid change of the lightning current during the lightning discharge. A strong transient electromagnetic field is generated around it and high induced electromotive force is generated in nearby conductors. The formation of electromagnetic induction, the induction of lightning along the conductor, damage to the device in the circuit or devices in the device.

In the information system, there are many system interfaces and long lines, which provide a good environment for the generation, coupling and propagation of inductive lightning. With the development of science and technology, the integration of information systems equipment is getting higher and higher, and the ability to withstand over-voltage is getting worse. It is extremely vulnerable to lightning strikes, and the damage is often due to the high level of integration of the system's core components. Therefore, it cannot be taken lightly. Induction lightning can come from clouds and can also come from lightning strikes.

The information system is connected to the outside world with a variety of long-distance cables that can generate inductive lightning over a wider area and pass along the cable to the information system. Therefore, the anti-inductive lightning protection is a substation integrated automation system in which the power system, especially the microelectronic technology, is widely used. Therefore, the lightning protection of the information system is the key to ensure the safety of the power system.