Novel surge protection device

Abstract

The invention relates to a novel surge protection device which mainly comprises a lightning protection element, a detection module, a power frequency current limiter, an overcurrent protection device, a thermal protection device, a current limiter, a time-delay stepping electromagnet, an induction sheet, a separating contact, an arc-extinguishing gate, an arc-extinguishing magnetic blowout plate and upper and lower connecting terminals. A surge discharge path is formed by the lightning protection element and the overcurrent protection device. A bypass circuit is formed by the separating contact and the current limiter. According to the novel surge protection device, attraction or repulsive force exists between the surge discharge path and a conductive metal rod, and an insulating ejecting rod transmits force to a force sensor. The force sensor converts force bearing information into current information which is processed by a signal processing device and then led into the time-delay stepping electromagnet. Corresponding current is introduced into the time-delay stepping electromagnet and then a series of mechanical linkage movement is actuated. The bypass circuit is conducted and the surge discharge path is shorted so that the protection effect of the surge protection device is realized.

Description

technical field [0001] The invention belongs to the technical field of surge protection for electronic and electric equipment. Background technique [0002] Lightning is a special weather phenomenon caused by the discharge of charged clouds in the air. Lightning is an important cause of damage to electronic equipment, which threatens the safe and stable operation of electronic information systems in various fields such as construction, railways, civil aviation, communications, industrial control, and military. Installing surge protectors on metal lines such as power lines, signal lines, and control lines connected to electronic equipment is one of the important measures for lightning protection. Surge protectors have been widely used in various fields and play an important role in lightning protection. The quality of its state directly affects its lightning protection effect, thus bringing hidden dangers to the safety of the protected equipment. [0003] At this stage, SP...

AI Technical Summary

Problems solved by technology

[0007] In order to effectively solve the above problems in the prior art, the present invention proposes a new type of surge protector for power supply systems that is easy to install and has reliable performance, which fundamentally solves the problem of the action blind area of ​​the existing thermal protection device and overcurrent protection device

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