Novel surge protection device

Abstract

The invention relates to a novel surge protection device comprising a lightning protection element, an overcurrent protection device, a thermal protection device and a shell. The lightning protection element is connected in series with the overcurrent protection device so as to form a surge discharge path. The thermal protection device is arranged on the electrode of the lightning protection element. The novel surge protection device also comprises a normally-closed contact, a magnetic field detection device, a detection loop, a buffer displacement elastic sheet, an inertial device, an electromagnetic actuation mechanism, a linkage mechanism, a signal detector, signal transmission lines, an overcurrent protection device detector, a data unit, connecting lines and connecting terminals. According to the novel surge protection device, the problems of safety hidden trouble caused by the actuation blind areas of the existing thermal protection device and the overcurrent protection device and the unknown actuation situation of the overcurrent protection device and the thermal protection device and the operating condition of the lightning protection element can be fundamentally solved.

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

[0006] 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 action blind area and overcurrent protection of existing thermal protection devices and overcurrent protection devices. The operation status of the current protection device, thermal protection device and the working status of the lightning protection components are unknown, and the potential safety hazards brought about

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