Lightning-protected switch-signal indicating rectifier

Abstract

The invention aims to provide a lightning-protected switch-signal indicating rectifier, which comprises a primary piezoresistor-redundancy bleeding-absorbing circuit array, a first inductor, a second inductor, a capacitor, a resistor-capacitor damping-absorbing circuit, a secondary piezoresistor-redundancy bleeding-absorbing circuit array and a redundancy-rectifying circuit array. A symmetrical structural design is adopted by the invention, so that the lightning-protected switch-signal indicating rectifier can perform a good lightning-protecting effect no matter high-energy electromagnetic pulses intrude from a cathode or an anode, and the integrated lightning-protecting capability of a lightning-protected switch-signal indicating-rectifier circuit is further enhanced through multi-level protection, low-pass filters and the utilization for a resistor-capacitor damping circuit with high-harmonic absorption. The lightning-protected switch-signal indicating rectifier is the circuit design of a bran-new lightning-protected switch-signal indicating rectifier, has good continuous lightning-protecting capability and can meet the working requirements of strong lightning areas with more than sixty annual mean thunderstorm days.

Description

technical field [0001] The invention relates to a device for indicating the position of a signal switch in a railway, in particular to a lightning protection switch signal indicating rectifier. Background technique [0002] A turnout is a line connection device that enables rolling stock to be transferred from one track to another, and is usually laid in large numbers at stations and marshalling yards. With the turnout, the passing ability of the line can be fully utilized. Even if it is a single-track railway, it is possible to lay a turnout and build a fork line longer than the length of the train, so that the trains can be opposite to each other. The switch representation circuit is a very important part of the switch control circuit. It reflects the position of the switch in real time and determines the arrangement of the route and the arrangement of the signals. [0003] The switch signal indicates that the rectifier in the circuit is actually a half-wave rectifier de...

AI Technical Summary

Problems solved by technology

Among the faults of the existing turnout indicating circuit, the fault of the rectifier circuit composed of high withstand voltage rectifying diodes is the component with the highest fault occurrence rate among all indicating circuit faults. areas with high incidence of lightning strikes), because there is no grounding device on site, the lightning current cannot be introduced into the ground by means of discharge, and the incidence of rectifier circuit failures caused by lightning is astonishingly high

The problem posed by the generation of this circuit fault has been around for a long time, but so far no good solution has appeared

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