Analog device of control cabinet matched with detection switch apparatus

Abstract

The invention discloses an analog device of a control cabinet matched with a detection switch apparatus, comprising a PLC controller unit, an outlet relay connected to an output module of the PLC controller unit and used for driving a control loop of a detected apparatus to operate, DC220V and DC24V two power sources connected to an AC380V power current incoming line to be used by the PLC controller unit, a requirement button switch connected between the DC220V power source and an input module of the PLC controller unit; the requirement button switch sends an operating command to the PLC controller unit, after the PLC controller unit identifies the requirement information, the connection / disconnection state of the control loop of the detected apparatus is diagnosed in accordance with detection programs of memory, an analog motion signal is output to the outlet relay, the outlet relay simulates the motion of the switch apparatus so that the control loop of the detected apparatus is connected or disconnected, a state signal is secondarily returned to the PLC controller unit for judging and outputting the judgment result to a display unit, thus completing the detection for the control loop of the detected apparatus.

Description

technical field [0001] The invention relates to an inspection device for a control cabinet matching a switchgear, in particular to a simulation device for testing the internal circuit of a control cabinet matching a switchgear in a power system. Background technique [0002] In high-voltage switchgear manufacturing enterprises, it is very important and necessary for the factory inspection of control cabinets for switchgear such as GIS (gas-insulated metal-enclosed switchgear). In the past, the inspection work of the control cabinet supporting the switchgear must be connected with the actual switchgear that has been manufactured and assembled for joint inspection. With the expansion of production scale and industrial subdivision, this joint inspection method has gradually exposed its disadvantages, that is, the switchgear manufacturing cycle is longer, and the supporting control cabinets are often completed before the switchgear products. If you wait for the joint inspection,...

AI Technical Summary

Problems solved by technology

With the expansion of production scale and industrial subdivision, this joint inspection method has gradually exposed its disadvantages, that is, the switchgear manufacturing cycle is long, and the supporting control cabinet is often completed before the switchgear products. If you wait for the joint inspection, it will definitely affect The production speed of control cabinet products affects the acceleration of production rhythm

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