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Fault detection method and system

A fault detection and distribution network technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of unreliable products, user influence, and high cost, so as to reduce the probability of early failure and improve product reliability. , the effect of saving secondary costs

Active Publication Date: 2021-08-17
CHENGDU MOLO ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing power industry, if there are problems such as process defects or mechanical fatigue in power equipment, but they are not solved in time, it will have serious impact on users
At present, for some equipment failures that are complex in structure, expensive in cost and easily related to personal safety, such as the failure of distribution network control equipment, it is eliminated by using feedback after the equipment leaves the factory
Troubleshooting like this usually takes a lot of time and effort
Moreover, due to the particularity of the distribution network control equipment, it is difficult to troubleshoot the distribution network control equipment with the existing technology, so as to cause huge losses or injuries to users
This will also cause customers to think that the product is unreliable and of low quality, which will further increase the secondary cost of the product

Method used

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  • Fault detection method and system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0047] An embodiment of the present invention provides a fault detection method for detecting early faults of the distribution network control device 10 . Such as figure 1 As shown, the fault detection method includes the following steps.

[0048]Step S110, applying the vibration stress to the distribution network regulation device 10 according to a first preset rule, and performing a performance test on the distribution network regulation device 10 after the vibration stress is applied.

[0049] Step S120, applying temperature cycle stress to the distribution network regulating device 10 according to a second preset rule.

[0050] Step S130, applying electrical stress to the distribution network regulating device 10 according to a third preset rule.

[0051] Step S140, performing a performance test on the distribution network control device 10 after the temperature cycle stress or the electrical stress is applied.

[0052] Wherein, if the detection result of any one perfor...

no. 2 example

[0104] Please refer to Figure 5 , Figure 5 The structural block diagram of the fault detection system provided by the embodiment of the present invention. The embodiment of the present invention also provides a fault detection system for performing each step in the above fault detection method. The fault detection system includes: a vibration stress application device 100 , a temperature stress application device 200 and an electrical stress application device 300 .

[0105] The vibration stress applying device 100 is used for applying vibration stress to the distribution network regulation equipment 10 . In this embodiment, the vibration stress applying device 100 can be used to perform figure 1 For the shown step S110, for the specific implementation of the vibration stress applying device 100, reference may be made to the related description of step S110.

[0106] The temperature stress applying device 200 is used for applying temperature cycle stress to the distributi...

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Abstract

Embodiments of the present invention provide a fault detection method and system. The fault detection method is used to detect distribution network control equipment. The method includes: applying vibration stress to the distribution network control equipment according to a first preset rule and applying performing performance testing on the distribution network control equipment after the vibration stress; applying temperature cycle stress to the distribution network control equipment according to the second preset rule, and applying electrical stress to the distribution network control equipment according to the third preset rule, Performing a performance test on the distribution network control device after applying temperature cycle stress and electrical stress; wherein, if the test result of any performance test is unqualified, it indicates that the distribution network control device has failed. The fault detection system is used to execute the fault detection method.

Description

technical field [0001] The invention relates to the field of product quality inspection, in particular to a fault detection method and system. Background technique [0002] In the existing power industry, if there are problems such as process defects or mechanical fatigue in power equipment, but they are not resolved in time, it will have serious impact on users. At present, for some equipment failures that are complex in structure, expensive in cost and likely to involve personal safety, such as the failure of distribution network control equipment, they are eliminated through feedback after the equipment leaves the factory. Such troubleshooting methods usually require a lot of time and effort. Moreover, due to the particularity of the distribution network control equipment, it is difficult to troubleshoot the distribution network control equipment with the existing technology, so as to cause huge losses or injuries to users. This will also cause customers to think that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/003
Inventor 宋德甫
Owner CHENGDU MOLO ELECTRIC
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