An intelligent single-phase air switch with early warning function

An air switch, single-phase technology, applied in the direction of electric switches, alarms, electrical components, etc., to achieve the effect of improving the accuracy of weak hidden dangers and reducing the amount of effective data

Active Publication Date: 2021-05-25
合肥能安科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • An intelligent single-phase air switch with early warning function

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Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: An intelligent single-phase air switch with an early warning function, suitable for single-phase electrical circuits, including a double-P single-phase air switch body with a zero-fire two-wire structure, wherein: in the zero-fire two-wire structure, The neutral line passing through the circuit is the independent neutral line of the single-phase electrical circuit, which is not connected to the zero row terminals in the middle, nor mixed with other lines;

[0062] Single-phase air switch body, including electromagnetic trip control module with leakage protection and thermal protection;

[0063] It also includes an electrical signal acquisition module, a temperature acquisition module, an MCU intelligent control module including a metering sub-module, and a network communication module, among which:

[0064] The MCU intelligent control module is connected with the temperature acquisition module to obtain the internal temperature of the air switch;

[0065]...

Embodiment 2

[0104] Embodiment 2: For the single-phase electrical circuit, the voltage acquisition processing circuit, the current acquisition processing circuit and the residual current acquisition processing circuit of the electrical signal acquisition module are respectively connected to each analog input pin of the MCU microcontroller of the MCU intelligent control module . The current signal is collected by the MCU microcontroller, and the voltage signal and the residual current signal are collected synchronously. In the calculation subroutine module of the MCU intelligent control module, the effective value of the phase voltage, the effective value of the phase current and the effective value of the residual current are calculated by the root mean square algorithm, and the fundamental wave of the phase voltage and the phase Current fundamental wave and residual current fundamental wave values; then subtract the effective values ​​from the fundamental wave values ​​to obtain the corre...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B19/00H01H9/54H01H9/56G01R31/00G01R31/52G01R31/12
CPCG01R31/00G01R31/12G08B19/00G01R31/50H01H9/54H01H9/56
Inventor 单立辉吴杰陈钟鸣
Owner 合肥能安科技有限公司
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