CN111723951A - Electrical fault troubleshooting method - Google Patents

Electrical fault troubleshooting method Download PDF

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Publication number
CN111723951A
CN111723951A CN202010534289.0A CN202010534289A CN111723951A CN 111723951 A CN111723951 A CN 111723951A CN 202010534289 A CN202010534289 A CN 202010534289A CN 111723951 A CN111723951 A CN 111723951A
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electrical
fault
troubleshooting
electric
elements
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CN202010534289.0A
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CN111723951B (en
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王春
申彦姣
谭越强
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China Tobacco Guizhou Industrial Co Ltd
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China Tobacco Guizhou Industrial Co Ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/20Administration of product repair or maintenance
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0631Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G06Q10/06316Sequencing of tasks or work
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/04Manufacturing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30Computing systems specially adapted for manufacturing

Abstract

The invention relates to a method for troubleshooting electrical faults, which comprises the steps of establishing an electrical fault troubleshooting model for each power device in a set range, and storing the electrical fault troubleshooting model in a processor or a database; establishing an electrical fault troubleshooting APP according to the electrical fault troubleshooting model; downloading an electrical troubleshooting APP to the mobile terminal; according to the indication of the electrical fault troubleshooting APP, a maintenance worker firstly inputs the name of the electrical fault power equipment, and the electrical fault troubleshooting APP calls an electrical fault troubleshooting model corresponding to the electrical fault power equipment through a processor or a database; and the electric fault APP instructs maintenance personnel to perform fault troubleshooting according to the indication of the electric fault troubleshooting model. According to the technical scheme, through the guidance of setting the troubleshooting model for the electric-grade element of the equipment, even inexperienced maintenance electricians can quickly find out the electric element with the fault and remove the fault, and the normal production of a production workshop is ensured.

Description

Electrical fault troubleshooting method
Technical Field
The invention belongs to the technical field of electrical maintenance, and particularly relates to a method for checking electrical faults.
Background
In the tobacco industry or other production industries, a power plant is a heart plant of a whole plant, and once various devices of the power plant break down, the production of the whole plant is seriously influenced. Therefore, the power plant should firstly make routine maintenance to ensure that the power equipment does not have faults, and secondly can solve the faults in the shortest time when the power equipment has faults so as to ensure the normal production of the production plant.
Many production line devices are now capable of on-line monitoring, and when a failure occurs in one of a large number of the production line devices, the failed device can be quickly identified, but the electrical components associated with the failed device can be tens or hundreds. When equipment failure occurs, the problem that the failure is solved in the shortest time is solved, the key is that the failure caused by which electric original can be found in the shortest time, then maintenance is carried out, and the failure caused by which electric original is found in dozens of hundreds of electric original, in the prior art, the searching time can be shortened only with the help of drawings, but the searching of the drawings is time-consuming, and under the condition, the technical level of an electric maintainer can influence the length of the required searching time.
In order to determine the time consumed for finding out a faulty electrical element, the applicant performs the following experiment, the air conditioner in the production workshop is manually set with three faults, the fault removing time is limited to 45 minutes, 21 maintenance electricians in the power plant participate, only 15 people finish the fault removing within 45 minutes, the fault removing time is high-tech personnel, and the average time consumed for finding out the electrical fault in the 15 completed people is about 30 minutes, which accounts for 70% of the whole fault removing time. Therefore, how to quickly find out the failed electrical component is a key for determining the time for solving the failure, but no technology is available for researching the failure.
Disclosure of Invention
The invention aims to provide a method for troubleshooting electrical faults, which aims to solve the problem that specific faulty electrical elements cannot be found quickly when equipment in the prior art is in fault.
The invention is realized by the following technical scheme:
a method for troubleshooting an electrical fault, comprising the steps of:
s1, establishing an electrical fault troubleshooting model for each power device in the set range, and storing the electrical fault troubleshooting model in a processor or a database;
s2, establishing an electrical fault troubleshooting APP according to the electrical fault troubleshooting model;
s3, downloading the electrical failure troubleshooting APP to the mobile terminal;
s4, the power equipment has electrical faults and reports fault information to the power maintenance department, and after a maintenance worker arrives at a maintenance area, the maintenance worker opens an electrical fault troubleshooting APP and establishes communication with the processor or the database;
s5, according to the indication of the electrical fault troubleshooting APP, a maintenance worker firstly inputs the name of the electrical fault power equipment, and the electrical fault troubleshooting APP calls out an electrical fault troubleshooting model corresponding to the electrical fault power equipment through the processor or the database;
and S6, the electric fault APP indicates maintenance personnel to perform fault troubleshooting from the K1 level to the Kn level according to the indication of the electric fault troubleshooting model, wherein n is a natural number.
Further, the method for establishing the electrical troubleshooting model comprises the following steps:
s11, determining all N electric elements related to the equipment, wherein N is a natural number;
s12, counting the frequency of the equipment failure in a set time range, the electrical element causing the equipment failure and the frequency of the electrical element failure; m electrical elements corresponding to the failure times exceeding a set value are taken as key electrical elements, wherein M is a natural number and M is less than or equal to N;
s13, dividing the N electrical elements into Kn levels by adopting a tree diagram according to the correlation among the electrical elements, wherein N is a natural number of 1, 2, 3 and …;
and S14, combining the steps S2 and S3, determining the checking sequence of the K1-level electric elements, and after the K1-level electric elements are checked, checking the K2-level electric elements until the Kn-level checking is completed.
Further, the method for determining the checking sequence of the K1-grade electric elements comprises the following steps:
s141, when n is 1, comparing the electrical component corresponding to the K1 level with the key electrical component, and if the electrical component overlaps with the key electrical component, listing the overlapped electrical component as a priority order in the electrical component checked at the K1 level; if no overlapped electric element appears, the step S142 is carried out;
s142, when n is 2, comparing the electrical element corresponding to the K2 level with the key electrical element, and if the electrical elements overlap, setting the K1 level electrical elements corresponding to the overlapped electrical elements as a priority order; if no overlapped electric element appears, the step S143 is performed;
s143, when n is 3, comparing the electrical component corresponding to the K3 level with the key electrical component, and if the electrical components overlap, setting the K1 level electrical components corresponding to the overlapped electrical components as a priority order; if no overlapped electrical element appears, go to step S144;
and step S144, when n is 4, 5 … n, determining the checking order of the K1-level electrical elements.
Further, in step S141, if the number of overlapped electrical components is greater than 1, the electrical components are sequentially ranked from high to low according to the number of failures occurring in the important electrical components.
Further, in steps S142 to S144, if the number of overlapped electrical components is greater than 1, the electrical components are sequentially ranked according to the failure frequency and the number of times from high to low of all the important electrical components corresponding to each K1-level electrical component.
Further, the order of the K2 to Kn-class electric elements is performed in accordance with the order of the K1-class electric elements of any one of the above.
Further, in step S6, the specific method of electrical troubleshooting is as follows:
1) the electric fault troubleshooting APP indicates that the K1-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; if the electrical element fault is checked, maintaining is carried out, and the power equipment runs normally, the electrical fault is checked, and a check result is fed back through an electrical fault check APP;
if the electrical element fault is not checked, performing step 2);
2) the electric fault troubleshooting APP indicates that the K2-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; if the electrical element fault is checked, maintaining is carried out, and the power equipment runs normally, the electrical fault is checked, and a check result is fed back through an electrical fault check APP;
if the electrical element fault is not checked, performing step 3);
3) the electrical fault troubleshooting APP indicates that electrical elements from K3 to Kn levels are checked according to the sequence set by the electrical fault troubleshooting model; if the electric element fault is checked, the maintenance is carried out, and the power equipment runs normally, the electric fault checking is finished, and the checking result is fed back through the electric fault checking APP.
The invention has the beneficial effects that:
according to the technical scheme, the troubleshooting model is set for the electric level element of the equipment and is stored in the processor or the database, when the equipment is determined to have a fault, the troubleshooting model is directly called, and even an inexperienced maintenance electrician can quickly find the electric element with the fault and eliminate the fault according to the guidance of the troubleshooting model, so that the normal production of a production workshop is ensured.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
The application provides an electrical fault troubleshooting method, which comprises the following steps:
s1, establishing an electrical fault troubleshooting model for each power device in the set range, and storing the electrical fault troubleshooting model in a processor or a database; taking a power plant or a production line as an example, a plurality of power plants may be included, and each power plant establishes an electrical troubleshooting model.
And S2, establishing an electrical fault troubleshooting APP according to the electrical fault troubleshooting model.
S3, downloading the electrical failure troubleshooting APP to the mobile terminal; in other embodiments of the application, all power equipment electrical fault troubleshooting models can be downloaded to the mobile terminal through the electrical fault troubleshooting APP, so that the power equipment electrical fault troubleshooting APP is not required to be connected with a processor or a database, and the power equipment electrical fault troubleshooting APP can be applied to electrical fault troubleshooting in a signal-free area or electrical fault troubleshooting when signals are weak.
And S4, the power equipment generates electrical faults and reports the fault information to the power maintenance department, and the maintenance personnel open the electrical fault troubleshooting APP after arriving at the maintenance area and establish communication with the processor or the database.
S5, the maintenance personnel firstly input the name of the power equipment with the electrical fault according to the indication of the electrical fault troubleshooting APP, and the electrical fault troubleshooting APP calls out an electrical fault troubleshooting model corresponding to the power equipment with the electrical fault through the processor or the database.
And S6, the electric fault APP indicates maintenance personnel to perform fault troubleshooting from the K1 level to the Kn level according to the indication of the electric fault troubleshooting model, wherein n is a natural number.
The application provides an establishment method of an electrical troubleshooting model, which comprises the following steps:
s11, determining all N electric elements related to the equipment, wherein N is a natural number; the number of the electrical elements corresponding to each piece of equipment may be different, and in the present application, the number mainly refers to an electrical element that can affect a normal workpiece of the equipment and affect a production line or equipment associated with the production line, and for some electrical elements, when a fault occurs, an auxiliary electrical element that does not directly cause the operation of the equipment may be determined whether to be listed in an electrical element set that needs to be determined according to needs.
S12, counting within a set time range, in the technical solution of the present application, it is necessary to determine corresponding set time according to different device characteristics, for example, the frequency of failures of some devices is low, and a failure may cause a device that seriously affects production, and the set time may be in units of years, such as 1 year, 2 years, 3 years, and the like; if the frequency of occurrence of the device is high, the setting time can be shortened, for example, 1 month, 2 months, 3 months, 6 months, 12 months, etc., the number of times of occurrence of the failure of the device, the electrical component causing the failure of the device, and the number of times of failure of the electrical component; m electrical elements corresponding to the failure times larger than or equal to a set value are taken as key electrical elements, wherein M is a natural number and M is less than or equal to N.
Taking a specific example, taking the statistical time of the P device as an example of a year, it is necessary to count that within 12 months, the device has 8 electrical faults, and the 8 electrical faults are caused by 4 electrical elements having faults, i.e., M is 4, and are separately set here, where the 4 electrical elements are A, B, C, D, where a electrical element has 4 faults, B electrical element has 2 faults, C electrical element has 1 fault, and D electrical element has 1 fault, and in this embodiment, the set value of the faults is 2 times, and here, the a electrical element and the B electrical element are listed as key electrical elements.
S13, dividing the N electrical elements into Kn levels by adopting a tree diagram according to the correlation among the electrical elements, wherein N is a natural number of 1, 2, 3 and …; the tree diagram is prior art, and takes the device as a trunk, and lists two or more electrical elements related to the device with the closest levels as K1, then lists one or more K2 levels under the K1 level, and lists one or more K3 levels under the K2 level in turn, and so on, lists Kn levels. In the technical scheme of the application, the dendrograms are divided according to the correlation among the electric elements and the characteristic of fault detection. The correlation between the electrical elements means that a certain electrical element is directly related to one or more electrical elements, for example, a plurality of electrical elements are included in a certain electrical module, and the correlation exists between the electrical elements in the electrical module. The characteristic of troubleshooting refers to that when the electrical elements corresponding to a certain troubleshooting sequence are checked to see whether the power circuit is faulty or not, for example, the electrical elements related to the power circuit have a correlation.
By way of example, continuing to take the P device as an example, the electrical components of the P device are determined to be 60, that is, N is 60, and the device mainly includes a power circuit module, a control circuit module and an operating circuit module through correlation analysis and combining with the characteristics of troubleshooting, where the power circuit module includes 10 electrical components, the control circuit includes 20 electrical components, and the operating circuit module includes 30 electrical components. The electric element E1 related to the power supply circuit is divided into a K1-class electric element, an F1-class electric element of the control circuit module is a K1-class electric element, and a G1-class electric element of the operating circuit module is a K1-class electric element.
Through the division of a tree diagram, the power supply circuit comprises 2K 2-level electric elements, namely E21 and E22; the E21 comprises 3 electrical elements, namely K3-class electrical elements, namely E311, E312 and E313; the E22 includes 4K 3 class electrical elements, E321, E322, E323, E324.
The control circuit module comprises 3K 2-grade electric elements which are respectively F21, F22 and F23, wherein F21 comprises 3K 3-grade electric elements which are respectively F311, F312 and F313; the F22 comprises 4K 3-class electric elements, namely F321, F322, F323 and F324; f23 includes 2K 3-class electrical elements, F331, F332, respectively; f311 includes 2K 4-class electrical elements, F411 and F412, respectively; the F322 comprises 3K 4-grade electric elements, namely F421, F422 and F423; f331 includes 1K 4 class electrical element F431; f332 includes 1K 4 stage electrical element F432.
The operation circuit module comprises 4K 2-grade electric elements which are respectively G21, G22, G23 and G24; wherein G21 includes 5K 3-class electrical elements, G311, G312, G313, G314, G315 respectively; g22 includes 3K 3-class electrical elements, G321, G322, G323; g23 includes 2K 3 class electrical elements, G331 and G332, respectively; g24 includes 2K 3 class electrical elements, G341 and G342, respectively; g313 includes 2K 4-class electrical elements, G411 and G412 respectively; g315 includes 3K 4-class electrical elements, G413, G414, and G415, respectively; g322 includes 2K 4-class electrical elements, G421 and G422, respectively; g331 comprises 3K 4-grade electrical elements G431, G432 and G433 respectively; g341 includes 3K 4 stage electrical elements, G441, G442, G443, respectively.
And S14, combining the steps S12 and S13, determining the checking sequence of the K1-level electric elements, and after the K1-level electric elements are checked, checking the K2-level electric elements until the Kn-level checking is completed.
A method of determining a rank order for K1 electrical components, comprising the steps of:
s141, when n is 1, comparing the electrical component corresponding to the K1 level with the key electrical component, that is, comparing the electrical components corresponding to the E1, the F1 and the G1 with the a electrical component and the B electrical component, and if the electrical components overlap with each other, for example, the E1 and the a electrical component are the same electrical component, listing the E1 electrical component as a priority order in the electrical component checked at the K1 level; then F1 and G1 are checked, and K2 level check is carried out after the checks are finished.
For the problem of who has priority to be checked between the F1 electric element and the G1 electric element, it is necessary to confirm by comparing the K2-Kn-class electric elements, and when n is 2, the 7 electric elements corresponding to the K2 class of the F1 electric element and the G1 electric element are compared with the B electric element, in this embodiment, the 7 electric elements of F21, F22, F23, G21, G22, G23, and G24 are compared with the B electric element, and if the F22 and the B electric element are the same electric element, the F1 corresponding to the K1 class, which is the previous class corresponding to the F22, is checked preferentially over the G1. If the seven electrical components in the K2 class are not identical to the B electrical components, a K3 class alignment is performed in the same manner as the K2 class alignment until the checking order of F1 and G1 is determined.
In this embodiment, the B electric elements are classified not in the classification of F1 or in the classification of G1 but in the classification of E1, and in this case, the order of examination of F1 and G1 is prioritized such that the number of lower-stage electric elements of F1 is smaller than the number of lower-stage electric elements of G1, and the order of examination of the K1 is E1, F1, and G1 in this embodiment. The subsequent K2 stages and up to Kn stages are determined in the above-described manner.
If no overlapped electric element appears at the K1 level, the step S12 is carried out;
s142, when n is 2, comparing the electrical element corresponding to the K2 level with the a electrical element and the B electrical element, and if the electrical elements are overlapped, prioritizing the K1 level electrical elements corresponding to the overlapped electrical elements;
if the order of the inspections of the one K1-class electric element is determined, the orders of the remaining two K1-class electric elements are the same according to the order of the inspections of the step S141.
If no overlapped electric element appears, the step S143 is performed;
s143, when n is 3, comparing the electrical component corresponding to the K3 level with the key electrical component, and if the electrical components overlap, setting the K1 level electrical components corresponding to the overlapped electrical components as a priority order; if no overlapped electrical element appears, go to step S144;
and step S144, when n is 4, 5 … n, determining the checking order of the K1-level electrical elements.
In step S141, if the number of superimposed electrical components is greater than 1, the electrical components are ranked in order from high to low according to the number of failures occurring in the important electrical components.
In steps S142 to S144, if the number of overlapped electrical components is greater than 1, the electrical components are sequentially ranked according to the failure frequency and the number of times from high to low of all the key electrical components corresponding to each K1-level electrical component.
The order of the K2 to Kn-class electric elements is performed according to the order of the K1-class electric elements of any one of the above.
And step 13), simultaneously, combining the characteristic of troubleshooting to carry out dendrogram grading.
In the technical scheme of the application, the method for determining the checking sequence from the K2-level electric element to the Kn-level electric element is the same as the method for determining the checking sequence from the K1-level electric element.
And the method also comprises a checking step of selecting one or more devices, carrying out fault checking according to the established method of the checking model, comparing the fault checking with the conventional fault checking, and determining that the electrical fault checking model is established if the time for carrying out fault checking according to the method of the checking model is shorter than the time for carrying out fault checking according to the conventional fault checking method.
The specific mode of electrical troubleshooting is as follows:
1) the electric fault troubleshooting APP indicates that the K1-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; in the present embodiment, three K1-class electrical elements, E1, F1 and G1, are included, and are described in detail in the electrical troubleshooting model building section, which is not described in detail herein.
If the electrical element fault is checked, maintaining is carried out, and the power equipment runs normally, the electrical fault is checked, and a check result is fed back through an electrical fault check APP; and a selection button is arranged on the electrical troubleshooting APP and used for confirming the indication information.
If the electrical element fault is not checked, performing step 2);
2) the electric fault troubleshooting APP indicates that the K2-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; if the electric element fault is checked, the maintenance is carried out, and the power equipment runs normally, the electric fault checking is finished, and the checking result is fed back through the electric fault checking APP.
If the electrical element fault is not checked, performing step 3);
3) the electrical fault troubleshooting APP indicates that electrical elements from K3 to Kn levels are checked according to the sequence set by the electrical fault troubleshooting model; if the electric element fault is checked, the maintenance is carried out, and the power equipment runs normally, the electric fault checking is finished, and the checking result is fed back through the electric fault checking APP.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A method for troubleshooting an electrical fault, comprising the steps of:
s1, establishing an electrical fault troubleshooting model for each power device in the set range, and storing the electrical fault troubleshooting model in a processor or a database;
s2, establishing an electrical fault troubleshooting APP according to the electrical fault troubleshooting model;
s3, downloading the electrical failure troubleshooting APP to the mobile terminal;
s4, the power equipment has electrical faults and reports fault information to the power maintenance department, and after a maintenance worker arrives at a maintenance area, the maintenance worker opens an electrical fault troubleshooting APP and establishes communication with the processor or the database;
s5, according to the indication of the electrical fault troubleshooting APP, a maintenance worker firstly inputs the name of the electrical fault power equipment, and the electrical fault troubleshooting APP calls out an electrical fault troubleshooting model corresponding to the electrical fault power equipment through the processor or the database;
and S6, the electric fault APP indicates maintenance personnel to perform fault troubleshooting from the K1 level to the Kn level according to the indication of the electric fault troubleshooting model, wherein n is a natural number.
2. The method for troubleshooting the electrical fault as claimed in claim 1, wherein the method for establishing the electrical fault troubleshooting model comprises the steps of:
s11, determining all N electric elements related to the equipment, wherein N is a natural number;
s12, counting the frequency of the equipment failure in a set time range, the electrical element causing the equipment failure and the frequency of the electrical element failure; m electrical elements corresponding to the failure times exceeding a set value are taken as key electrical elements, wherein M is a natural number and M is less than or equal to N;
s13, dividing the N electrical elements into Kn levels by adopting a tree diagram according to the correlation among the electrical elements, wherein N is a natural number of 1, 2, 3 and …;
and S14, combining the steps S2 and S3, determining the checking sequence of the K1-level electric elements, and after the K1-level electric elements are checked, checking the K2-level electric elements until the Kn-level checking is completed.
3. The method for troubleshooting an electrical fault as claimed in claim 2, wherein the method for determining the troubleshooting order of the K1-class electrical components comprises the steps of:
s141, when n is 1, comparing the electrical component corresponding to the K1 level with the key electrical component, and if the electrical component overlaps with the key electrical component, listing the overlapped electrical component as a priority order in the electrical component checked at the K1 level; if no overlapped electric element appears, the step S142 is carried out;
s142, when n is 2, comparing the electrical element corresponding to the K2 level with the key electrical element, and if the electrical elements overlap, setting the K1 level electrical elements corresponding to the overlapped electrical elements as a priority order; if no overlapped electric element appears, the step S143 is performed;
s143, when n is 3, comparing the electrical component corresponding to the K3 level with the key electrical component, and if the electrical components overlap, setting the K1 level electrical components corresponding to the overlapped electrical components as a priority order; if no overlapped electrical element appears, go to step S144;
and step S144, when n is 4, 5 … n, determining the checking order of the K1-level electrical elements.
4. The method according to claim 3, wherein in step S141, if the number of the overlapped electrical components is greater than 1, the electrical components are sequentially ranked from high to low according to the number of failures occurring in the important electrical components.
5. The method according to claim 3, wherein in steps S142 to S144, if the number of overlapped electrical components is greater than 1, the electrical components are sequentially ranked according to the failure frequency and the number of the important electrical components corresponding to each K1-level electrical component from high to low.
6. The method for troubleshooting an electrical fault as claimed in claim 2, wherein the troubleshooting order of the K2 through Kn-class electrical elements is performed in accordance with the troubleshooting order of the K1-class electrical elements.
7. The method for troubleshooting an electrical fault as claimed in claim 1, wherein in the step S6, the electrical fault is specifically troubleshot by:
1) the electric fault troubleshooting APP indicates that the K1-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; if the electrical element fault is checked, maintaining is carried out, and the power equipment runs normally, the electrical fault is checked, and a check result is fed back through an electrical fault check APP;
if the electrical element fault is not checked, performing step 2);
2) the electric fault troubleshooting APP indicates that the K2-level electric elements are checked according to the sequence set by the electric fault troubleshooting model; if the electrical element fault is checked, maintaining is carried out, and the power equipment runs normally, the electrical fault is checked, and a check result is fed back through an electrical fault check APP;
if the electrical element fault is not checked, performing step 3);
3) the electrical fault troubleshooting APP indicates that electrical elements from K3 to Kn levels are checked according to the sequence set by the electrical fault troubleshooting model; if the electric element fault is checked, the maintenance is carried out, and the power equipment runs normally, the electric fault checking is finished, and the checking result is fed back through the electric fault checking APP.
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