Lightning protection device, lightning protection combination and lightning protection cabinet

Abstract

The invention provides a lightning protection device, a lightning protection combination, a lightning protection cabinet and a protection method for applying the lightning protection cabinet to a track circuit. The lightning protection device is characterized in that nonlinear elements (101) are connected to the primary or the secondary of an isolation transformer (102) in parallel, or the nonlinear elements (101) are connected to the primary and the secondary of the isolation transformer (102) in parallel respectively, two leads of a primary coil of the isolation transformer (102) are used as the two input ends of the lightning protection device, two leads of a secondary coil of the isolation transformer (102) are used as the two output ends of the lightning protection device, and an iron core and a shielding shell of the isolation transformer are used as the ground wire end of the lightning protection device. The isolation transformer is used as the main lightning protection component, the structure is simple, the lightning protection effect is good, and the defects in the prior art are overcome.

Description

technical field [0001] The invention discloses a new lightning protection device, a lightning protection combination and a lightning protection cabinet; in particular, it relates to a lightning protection device, a lightning protection combination and a lightning protection cabinet for railway track circuit protection. Background technique [0002] With the development of science and technology, especially electronic technology, the reliability and safety requirements of electronic products are getting higher and higher. The safety protection of electronic products, especially the lightning arrester for electronic products in preventing lightning strikes or surges, has been widely used . Most of the existing technologies use non-linear components such as piezoresistors, gas discharge tubes, gas gaps, and transient diodes to form lightning protection circuits to protect electronic equipment. Generally, a pair of power lines or signal circuits must be vertically and horizo...

AI Technical Summary

Problems solved by technology

Due to the different characteristics and residual voltage of various nonlinear components, corresponding to some sensitive electronic equipment, it is necessary to use different nonlinear components to form a multi-level protection circuit in order to protect the electronic equipment. There are many devices and complex circuits, and the lightning protection effect is not good

Especially for the protection of railway track circuits, the track circuit equipment is often damaged by lightning strikes, which has a negative impact on the normal operation of the railway

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