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Over-travel and pull-in time double-variable electric switch life evaluation system and method

An electrical switch, pull-in time technology, applied in circuit breaker testing, design optimization/simulation, calculation, etc., can solve problems such as insufficient accuracy of evaluation model factor weights based on experience, and inability to diagnose electrical switch status, etc. The effect of promoting sustainable and healthy development, simple structure and portable operation

Pending Publication Date: 2022-04-26
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing electrical switch life evaluation adopts the fuzzy comprehensive diagnosis method, and the weight of the evaluation model factors cannot be guaranteed by experience, and the state of the electrical switch cannot be effectively diagnosed

Method used

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  • Over-travel and pull-in time double-variable electric switch life evaluation system and method
  • Over-travel and pull-in time double-variable electric switch life evaluation system and method
  • Over-travel and pull-in time double-variable electric switch life evaluation system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0044] The present invention provides an embodiment, which is a dual-variable electrical switch life evaluation system for overtravel and pull-in time, such as figure 1 as shown, figure 1 It is a simplified structural diagram of the double variable electric switch life evaluation system of overtravel and pull-in time of the present invention.

[0045] The double-variable electrical switch life evaluation system of overtravel and pull-in time of the present invention mainly includes the following components: display unit 1, control panel 2, power supply 3, reset circuit 4, clock circuit 5, crystal oscillator circuit 6, PIC7, drive module 8 , electrical switch 9, signal processing circuit 10, current sensor 11, analog-to-digital conversion unit 12, stroke sensor 13, voltage sensor 14, communication circuit 15, industrial computer 16, data storage unit 17.

[0046] Wherein, the signal input end of described display unit 1 is connected with the display signal output end of PIC7, ...

Embodiment 2

[0055] The present invention also provides an embodiment, which is a double-variable electric switch life evaluation method of overtravel and pull-in time. During specific implementation, as follows Figure 4 as shown, Figure 4 It is a flow chart of the double variable electrical switch life evaluation system of overtravel and pull-in time of the present invention.

[0056] The present invention provides a method for evaluating the life of an overtravel and pull-in time bivariate electric switch, which specifically includes the following steps:

[0057] Step 1. Calculate the overtravel time and pull-in time of the electrical switch.

[0058] The time it takes for the electrical switch to receive the action command and start to move to the contact of the moving and static contacts is called the pull-in time.

[0059] The time it takes for the moving and static contacts of an electrical switch to be fully closed is called the overtravel time.

[0060] The overtravel time and...

Embodiment 3

[0073] Based on the same inventive concept, an embodiment of the present invention also provides a computer storage medium, where a computer program is stored on the computer storage medium, and when the computer program is executed by a processor, the overtravel and Steps in a method for life assessment of electrical switches with bivariate pull-in time.

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Abstract

The invention belongs to the technical field of electrical switch service life evaluation systems, and particularly relates to an over-travel and pull-in time double-variable electrical switch service life evaluation system and an over-travel and pull-in time double-variable electrical switch service life evaluation method. According to the system, a display unit and a data storage unit are respectively connected with a PIC, and a control panel is connected with the PIC; the output ends of the power supply, the reset circuit, the clock circuit and the crystal oscillation circuit are respectively connected with the PIC, and the PIC is connected with the electrical switch through the driving module; the electrical switch is connected with the signal processing circuit through the current sensor and the voltage transformer. The output end of the signal processing circuit is connected with the input end of the PI. The electrical switch is connected with the PIC through the stroke sensor and the analog-to-digital conversion unit; and the input end of the PIC is connected with an industrial computer through a communication circuit. The system has the advantages of being simple in structure and convenient to operate, the electric switch service life prediction precision can be improved, the electric switch product quality is guaranteed, electric power resources are saved, and the electric switch safety level is improved.

Description

technical field [0001] The invention belongs to the technical field of electrical switch life evaluation systems, and in particular relates to a double-variable electrical switch life evaluation system and method for overtravel and pull-in time. Background technique [0002] Electrical switches are commonly used electrical equipment. They can effectively control the working status of electrical equipment by switching them on and off. They are widely used in industrial production, military, aerospace and other fields. At present, the electrical switch adopts the way of troubleshooting and replacement, which has certain safety hazards and brings accident hazards to safe production and people's lives. [0003] Life assessment technology uses electrical switch parameter detection and intelligent algorithms to judge the operating status of equipment, and gives an alarm when a failure or failure occurs, which is conducive to scientific arrangement of maintenance and improvement of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/327G06F30/20
CPCG01R31/327G06F30/20G06F2119/04
Inventor 郎福成张红奎应勇周睿闫比男杨滢璇李惺宇钱旭张维娜邰晓雪付程傲田博文
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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