Intelligent testing device for control circuit of alternating current switch machine

Abstract

The invention discloses an intelligent testing device for a control circuit of an alternating current switch machine. An action voltage and phase sequence detection circuit accomplishes the detection of voltage signals and the phase sequence relation among five wires, outputted analog quantity signals are connected with a microcontroller system; the microcontroller system analyzes the voltages and the phase sequence relation among the five wires, determines the work state of a switch machine indoor control circuit, and controls an action simulation circuit, an expression simulation circuit, and an operation button indicating panel according to the work state of the switch machine indoor control circuit; the action simulation circuit simulates normal fixed rotation, normal reverse rotation, switch-extruding fixed rotation, and switch-extruding reverse rotation of the alternating current switch machine; the expression simulation circuit simulates the fixed rotation, reverse rotation, and four-open states of the alternating current switch machine; and an action current detection circuit and an expression current detection circuit accomplish the detection of system circuit current. The beneficial effects of the intelligent testing device are that the intelligent device capable of realizing intelligence and fully testing the control circuit of the alternating current switch machine is provided, and the test efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of railway signal control, and relates to an intelligent test device for an AC switch machine control circuit. Background technique [0002] Five-wire three-phase AC switching equipment has been widely used in speed-up and high-speed rail lines. The control circuit of the five-wire AC switch machine is as follows: figure 1 As shown, the control circuit is mainly composed of a display loop and a control loop. The control circuit is connected to the controlled switch machine through X1, X2, X3, X4, and X5 to realize the rotation control and position status acquisition of the switch machine. The circuit structure is complex and there are many fault points. In the daily operation process, the troubleshooting of the control circuit of the five-wire switch machine relies on the ability and experience of the maintenance personnel, and there are problems such as high quality requirements for personnel, long troubl...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an intelligent test device for the control circuit of the AC switch machine, which solves the problem that the troubleshooting of the control circuit of the five-wire switch machine depends on the ability and experience of the maintenance personnel. difficult problem

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