An intelligent single-phase air switch with early warning function

Abstract

The invention discloses an intelligent single-phase air switch with an early warning function, which includes a single-phase air switch main body with a fire-zero double-wire structure, an electrical signal acquisition module, and an MCU intelligent control module including a metering sub-module, wherein the electrical signal The acquisition module collects voltage vector values, current vector values, and residual current vector values ​​and sends them to the MCU intelligent control module through the metering acquisition module. The insulation conductance value and resistive residual current value calculated by the program module are sent to the mutation processing sub-program module, and are sent to the early warning logic module after time integration; the sudden change processing module obtains the insulation conductance and resistive residual current. Enter the early warning logic module; finally, the early warning logic module judges potential safety hazards.

Description

technical field [0001] The invention relates to the field of air switches, in particular to an intelligent single-phase air switch with an early warning function. Background technique [0002] An intelligent single-phase air switch is generally composed of an air switch body composed of an actuator, and a control unit and a data acquisition unit integrated in the air switch body. The data detection of the intelligent single-phase air switch in the prior art is generally to check real-time transient data, such as voltage, current, power, temperature, leakage current (commonly known as residual current), etc. These parameters are indispensable, but they are not suitable for alarming Monitoring and early warning of electrical safety hazards before the stage. Most of the time, the value of early hidden dangers in electrical safety is less than or far less than the event alarm threshold. Existing civil construction sites that widely use small and micro air switches such as air ...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an intelligent single-phase air switch with an early warning function, which has the function of monitoring and early warning of potential safety hazards, so as to solve the problem that the prior art intelligent single-phase air switch cannot realize early safety early warning based on detection data

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