CN113884943B - Leakage fault analysis method, device, equipment and medium - Google Patents
Leakage fault analysis method, device, equipment and medium Download PDFInfo
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- CN113884943B CN113884943B CN202111261623.0A CN202111261623A CN113884943B CN 113884943 B CN113884943 B CN 113884943B CN 202111261623 A CN202111261623 A CN 202111261623A CN 113884943 B CN113884943 B CN 113884943B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The embodiment of the invention discloses a leakage fault analysis method, a device, equipment and a medium. According to the method, the leakage current value and the installation environment of the leakage protector are obtained, the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason are determined according to the leakage current value and the installation environment, further, leakage alarm reference information is generated based on the leakage reason and the fault position and is sent to a user associated terminal, so that leakage fault analysis and fault positioning based on the leakage protector are realized, fault reference guide information for troubleshooting and repairing faults is provided for field operators, the field operators are assisted in quickly finding the faults, and technical support is provided for realizing intelligent management of distribution transformer areas.
Description
Technical Field
The embodiment of the invention relates to the technical field of leakage detection, in particular to a leakage fault analysis method, a device, equipment and a medium.
Background
In the prior art, the leakage protector with different brands and models on the market only has the function of detecting the leakage of the low-voltage distribution line or the power supply equipment, and cannot support fault alarming, fault analysis and fault positioning of the low-voltage distribution line or the power supply equipment.
Disclosure of Invention
The embodiment of the invention provides a leakage fault analysis method, a device, equipment and a medium, which are used for realizing leakage fault analysis and fault positioning based on a leakage protector.
In a first aspect, an embodiment of the present invention provides a leakage fault analysis method, which is applicable to a leakage protector, and the method includes:
determining a leakage current value of a leakage protector and an installation environment of the leakage protector;
determining a leakage cause corresponding to the leakage protector and a fault position corresponding to the leakage cause based on the leakage current value and the installation environment;
and generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
In a second aspect, an embodiment of the present invention further provides an electrical leakage fault analysis apparatus, where the apparatus includes:
the acquisition module is used for determining the leakage current value of the leakage protector and the installation environment of the leakage protector;
the determining module is used for determining a leakage reason corresponding to the leakage protector and a fault position corresponding to the leakage reason based on the leakage current value and the installation environment;
and the sending module is used for generating leakage alarm reference information based on the leakage reason and the fault position and sending the leakage alarm reference information to a user associated terminal.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
one or more processors;
storage means for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the leakage fault analysis method as provided by any embodiment of the present invention.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the leakage fault analysis method as provided in any embodiment of the present invention.
The embodiments of the above invention have the following advantages or benefits:
the leakage current value and the installation environment of the leakage protector are obtained, the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason are determined according to the leakage current value and the installation environment, and further leakage alarm reference information is generated based on the leakage reason and the fault position and sent to a user associated terminal, so that leakage fault analysis and fault positioning based on the leakage protector are realized, fault reference guide information for troubleshooting and fault repairing is provided for field operators, the field operators are assisted in quickly finding the faults, and technical support is provided for realizing intelligent management of a distribution transformer area.
Drawings
In order to more clearly illustrate the technical solution of the exemplary embodiments of the present invention, a brief description is given below of the drawings required for describing the embodiments. It is obvious that the drawings presented are only drawings of some of the embodiments of the invention to be described, and not all the drawings, and that other drawings can be made according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a leakage fault analysis method according to an embodiment of the invention;
fig. 2 is a flow chart of a leakage fault analysis method according to a second embodiment of the present invention;
fig. 3 is a schematic flow chart of a leakage fault analysis method according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a leakage fault analysis device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Example 1
Fig. 1 is a flow chart of a leakage fault analysis method according to a first embodiment of the present invention, where the method may be implemented by a leakage fault analysis device, and the device may be implemented by hardware and/or software, and specifically includes the following steps:
s110, determining a leakage current value of the leakage protector and an installation environment of the leakage protector.
In this embodiment, the operation data of the earth leakage protector may be acquired, and the earth leakage current value may be determined based on the operation data of the earth leakage protector. Specifically, when the leakage protector detects that the low-voltage line or the load equipment has a leakage fault, the leakage current value corresponding to the leakage fault can be determined.
The installation environment of the leakage protector can be the environment where the low-voltage circuit or the load equipment is monitored by the leakage protector. In particular, the installation environment may include at least one of whether there are vegetation trees, whether there are metals, whether there are lightning arresters, whether there are street light wires, whether the equipment is aged, and whether the access user exceeds a set number. In this embodiment, the installation environment information of the leakage protector may be written into the memory of the leakage protector in advance, and then when the leakage fault is detected, the installation environment information stored in the leakage protector and the leakage current value monitored by the leakage protector in real time may be read. Or, the installation environment information of each leakage protector may be written in the server in advance, and the server may issue the installation environment information of the leakage protector when receiving the installation environment acquisition request.
And S120, determining a leakage reason corresponding to the leakage protector and a fault position corresponding to the leakage reason based on the leakage current value and the installation environment.
The leakage cause can be the cause of leakage fault of the low-voltage line or the load equipment monitored by the leakage protector; the fault location may be a location where a leakage fault occurs in the low voltage line or load device monitored by the leakage protector.
Specifically, the embodiment may collect various sample leakage values, installation environments corresponding to the various sample leakage values, leakage reasons corresponding to the various sample leakage values, fault positions and other sample information in advance, establish association relationships among the various sample leakage values, the installation environments of the sample leakage values, the leakage reasons and the fault positions based on the sample information collected in advance, and further query the leakage current values, the leakage reasons corresponding to the installation environments and the fault positions according to the pre-established association relationships, the leakage current values and the installation environments when the current values collected by the leakage protector and the installation environments of the leakage protector are obtained.
Or, in this embodiment, various sample leakage values, installation environments corresponding to the various sample leakage values, leakage reasons corresponding to the various sample leakage values, fault positions and other sample information may be collected in advance, feature extraction is performed on the sample information collected in advance, and a fault analysis model is trained based on the extracted features, so that when the current leakage value currently collected by the leakage protector and the installation environment of the leakage protector are obtained, the leakage reasons and the fault positions are determined according to the feature data of the current leakage value, the feature data of the installation environment and the fault analysis model.
Illustratively, determining the cause of the electric leakage corresponding to the electric leakage protector and the fault location corresponding to the cause of the electric leakage based on the electric leakage current value and the installation environment may be at least one of:
if the leakage current value is suddenly high and suddenly low and is changed between 50mA and 150mA, and the installation environment comprises a grass tree, the leakage can be caused by electric shock of a small animal or wire overlapping of the tree, and the fault position can be a wire overlapping position of the tree or an electric shock position of the small animal;
if the leakage current value is between 150mA and 5A and the installation environment comprises equipment aging, the leakage cause can be indirect leakage fault caused by equipment insulation damp or aging, or the user steals electricity by using a low-power electric appliance from line to line, and the fault position can be equipment insulation damp, equipment aging position or user electricity stealing position;
if the leakage current value is between 5A and 15A and the installation environment comprises metal or the access users exceeds the set quantity, the leakage cause can be line metallic bonding, or the users have linear repeated grounding, grounding zero and mixed use, the users use high-power electric appliances to steal electricity one by one, and the fault position can be a line metallic bonding position or a user electricity stealing position;
if the leakage current value is above 15A and the installation environment comprises metal, the leakage can be caused by the fact that a phase line, other metal components and an overhead ground wire are directly adhered to each other to form a wire, or the neutral wires of different transformer areas share or the neutral wires of the rear end of a plurality of leakage protection outgoing wires share the same transformer area, and the fault position can be an adhesion wire-forming position or a neutral wire hybrid-connection sharing position;
if the current leakage value is above 15A and the installation environment comprises a street lamp wire, the reason for the current leakage can be that the street lamp wire is connected with a phase line and a neutral line across a transformer area, and the fault position can be that the street lamp wire is connected with the phase line and the neutral line;
if the leakage current value is above 15A and the installation environment includes a lightning arrester, the leakage cause may be breakdown of a phase of the lightning arrester, and the fault location may be a breakdown location of the lightning arrester.
And S130, generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
The user associated terminal can be electronic equipment such as a mobile phone, an intelligent tablet, a computer, an intelligent watch, a detector and the like, and can also be programs such as a WeChat applet, a WeChat public number, an enterprise APP and the like. Specifically, in this embodiment, the leakage alarm reference information may be generated according to the leakage cause and the fault location, and the leakage alarm reference information may be sent to the user associated terminal, so as to provide fault analysis information for the user.
It should be noted that, in this embodiment, the leakage alarm level may be determined according to at least one of the leakage cause, the fault location and the leakage current value, and then the leakage alarm level is added to the leakage alarm reference information, so as to prompt the user of the necessity of going to the leakage location and the priority of repairing the leakage fault.
Optionally, the method further comprises: determining the fault time of the leakage protector; and generating leakage alarm prompt information based on the leakage current value and the fault time, and sending the leakage alarm prompt information to the user associated terminal. The fault time may be a time when the earth leakage protector detects an earth leakage fault. Specifically, in this optional embodiment, the leakage alarm prompt information may also be generated according to the fault time and the leakage current value, and sent to the user associated terminal, so as to implement leakage fault alarm, and prompt the user of occurrence of leakage fault.
According to the technical scheme, the leakage current value and the installation environment of the leakage protector are obtained, the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason are determined according to the leakage current value and the installation environment, and further leakage alarm reference information is generated based on the leakage reason and the fault position and sent to the user-associated terminal, so that leakage fault analysis and fault positioning based on the leakage protector are realized, fault reference guide information for troubleshooting and fault repairing is provided for field operators, the field operators are assisted in quickly finding faults, and technical support is provided for realizing intelligent management of the distribution transformer area.
It should be noted that, the leakage fault analysis method provided in this embodiment may be executed by the leakage protector, or may also be executed by a separate processor. If the above-mentioned electric leakage fault analysis method is carried out by the electric leakage protector, the electric leakage protector can also include the LED display unit, the LED display unit can be used for man-machine interaction operation, the LED display unit can display the electric leakage warning reference information, in order to facilitate users to look over; the leakage protector may further include an information storage unit for storing information of respective leakage current values, protection currents, causes of leakage, and fault positions.
Example two
Fig. 2 is a schematic flow chart of a leakage fault analysis method according to a second embodiment of the present invention, where the method further includes: determining a preset working current threshold corresponding to the leakage protector based on the installation protection type of the leakage protector; judging whether the leakage protector detects a leakage fault or not based on the current signal acquired by the leakage protector and the preset working current threshold value; if yes, obtaining the leakage current value of the leakage protector. Wherein the explanation of the same or corresponding terms as those of the above embodiments is not repeated herein. Referring to fig. 2, the leakage fault analysis method provided in the present embodiment includes the following steps:
s210, determining a preset working current threshold corresponding to the leakage protector based on the installation protection type of the leakage protector.
The installation protection type may be the actual protection type of the low-voltage line or the load device monitored by the earth leakage protector. By way of example, the installation protection type may be total protection of the station area, secondary protection, or the like. The preset operating current threshold may be a protection threshold of the earth leakage protector. Specifically, according to the embodiment, the protection threshold value of the leakage protector can be adjusted according to the actual condition of the low-voltage line or the load equipment monitored by the leakage protector, so that the leakage protector is suitable for the monitoring site of the leakage protector, and site adaptation is realized.
In one embodiment, the determining, based on the installation protection type of the leakage protector, a preset operating current threshold corresponding to the leakage protector includes: if the installation protection type of the leakage protector is total protection of a transformer area, determining a preset working current threshold value corresponding to the leakage protector as a first threshold value; if the installation protection type of the leakage protector is secondary protection, determining a preset working current threshold value corresponding to the leakage protector as a second threshold value; wherein the first threshold is greater than the second threshold.
The leakage protector can collect current signals of the three-phase four-wire distribution network in real time, when the installation protection type is total protection of a platform area, the preset working current threshold can be set to any value between 500mA and 1000mA, and the breaking time can be set to 0.5s; when the installation protection type is the secondary protection, the preset working current threshold value can be set to 300mA, and the breaking time can be set to 0.3s. It should be noted that, the preset working current threshold in the above example is an empirical value, and may be adjusted according to the field situation corresponding to the leakage protector in practical application. And, the installation protection type is not limited to the above-described total protection of the zones and secondary protection.
And S220, judging whether the leakage protector detects a leakage fault or not based on the current signal acquired by the leakage protector and the preset working current threshold, and if so, acquiring a leakage current value of the leakage protector.
Specifically, when the difference between the current signal and the preset working current threshold exceeds the set current difference threshold, it may be determined that the leakage protector detects the leakage fault, and the leakage current value monitored by the leakage protector is obtained.
Optionally, after the obtaining the leakage current value of the leakage protector, the method further includes: performing secondary verification on the leakage current value based on a preset working current threshold corresponding to the leakage protector; and judging whether to execute the operation of determining the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason based on the verification result. In this alternative embodiment, considering that the current value is actually continuously floating, so that there is a situation that the leakage protector judges an error, the leakage current value may be checked secondarily after the leakage current value of the leakage protector is obtained and before the leakage cause and the fault position corresponding to the leakage protector are determined, so that it is ensured that the leakage protector detects the leakage fault. The secondary verification process may be to compare the leakage current value with a preset working current threshold, and determine a verification result based on the comparison result. By carrying out secondary verification on the leakage current value, fault judgment errors caused by current fluctuation are avoided, and unnecessary leakage alarm reference information is avoided.
S230, determining a leakage current value of the leakage protector and an installation environment of the leakage protector.
And S240, determining a leakage reason corresponding to the leakage protector and a fault position corresponding to the leakage reason based on the leakage current value and the installation environment.
And S250, generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
According to the technical scheme of the embodiment, the preset working current threshold value of the leakage protector can be set according to the actual condition of the low-voltage line or the load equipment monitored by the leakage protector so as to adapt to the monitoring site of the leakage protector, field adaptation is realized, and the leakage monitoring accuracy of the leakage protector is improved.
Example III
Fig. 3 is a schematic flow chart of a leakage fault analysis method according to a third embodiment of the present invention, where the method further includes: acquiring a current voltage signal acquired by the leakage protector; if the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the leakage protector detects an undervoltage fault or an overvoltage fault; and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal. Wherein the explanation of the same or corresponding terms as those of the above embodiments is not repeated herein. Referring to fig. 3, the leakage fault analysis method provided in the present embodiment includes the following steps:
s310, determining a preset working current threshold corresponding to the leakage protector based on the installation protection type of the leakage protector.
S320, judging whether the leakage protector detects a leakage fault or not based on the current signal acquired by the leakage protector and the preset working current threshold value; if yes, obtaining the leakage current value of the leakage protector.
S330, acquiring a current voltage signal acquired by the leakage protector, if the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the leakage protector detects an under-voltage fault or an over-voltage fault, generating a protection trigger signal and sending the protection trigger signal to the user associated terminal.
In this embodiment, the leakage protector may also detect undervoltage and overvoltage faults. Specifically, the leakage protector can collect current voltage information of the low-voltage line or the load equipment, compare the current voltage information with a preset standard voltage, determine that an under-voltage fault or an over-voltage fault is detected if the difference value between the current voltage information and the preset standard voltage exceeds a set protection threshold value, and generate a protection trigger signal to be sent to the user-associated terminal. If overload phenomenon occurs on the low-voltage line or equipment monitored by the leakage protector, overvoltage faults can be generated.
For example, if the difference between the current voltage signal and the standard voltage exceeds the set protection threshold, the judging that the leakage protector detects the undervoltage fault or the overvoltage fault includes: if the current voltage signal is larger than the standard voltage and the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the leakage protector detects an overvoltage fault; and if the current voltage signal is smaller than the standard voltage and the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the under-voltage fault is detected by the electric leakage protector.
Of course, the leakage protector in this embodiment may also detect the open-phase and zero-break faults of the low-voltage line or the load device. That is, optionally, the method further comprises: if the current voltage signal has a line disconnection or no voltage value of the phase, judging that the leakage protector detects a phase failure or zero failure; and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal. If the low-voltage circuit or equipment monitored by the leakage protector has a short circuit phenomenon, zero-breaking faults can be generated.
For example, if the current voltage signal has a line disconnection or no voltage value of the phase, it may be determined that the leakage protector detects a phase failure or a zero failure, where the phase failure or the zero failure may be: if the current voltage signal has no voltage value, judging that the leakage protector detects the phase failure; if the current voltage signal is broken, judging that the leakage protector detects zero breaking fault. For example, the open-phase action time of the open-phase protection may be set to less than 1S.
S340, determining a leakage current value of a leakage protector and an installation environment of the leakage protector; and determining a leakage reason corresponding to the leakage protector and a fault position corresponding to the leakage reason based on the leakage current value and the installation environment.
And S350, generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
The embodiment can also determine the fault type detected by the leakage protector, and add the fault type to the leakage alarm prompt information so as to prompt a user of the fault type currently detected by the leakage protector. The fault types include, but are not limited to, leakage faults, undervoltage faults, overvoltage faults, zero-break faults and open-phase faults.
According to the technical scheme, the leakage protector can also detect overload, short circuit, undervoltage or open-phase of the low-voltage circuit or equipment, and has the protection functions of overload, leakage, short circuit, undervoltage, open-phase and the like of the low-voltage circuit or equipment.
Example IV
Fig. 4 is a schematic structural diagram of a leakage fault analysis device according to a fourth embodiment of the present invention, where the embodiment is applicable to analyzing a leakage cause and a fault location according to a leakage current value collected by a leakage protector and an installation environment of the leakage protector, and providing timely leakage alarm reference information, and the device specifically includes: acquisition module 410, determination module 420, and transmission module 430.
An acquisition module 410, configured to determine a leakage current value of a leakage protector and an installation environment of the leakage protector;
a determining module 420, configured to determine, based on the leakage current value and the installation environment, a leakage cause corresponding to the leakage protector and a fault location corresponding to the leakage cause;
and the sending module 430 is configured to generate leakage alarm reference information based on the leakage cause and the fault location, and send the leakage alarm reference information to a user associated terminal.
Optionally, the device further comprises an alarm module, wherein the alarm module is used for determining the fault time of the leakage protector; and generating leakage alarm prompt information based on the leakage current value and the fault time, and sending the leakage alarm prompt information to the user associated terminal.
Optionally, the device further comprises a leakage judging module, wherein the leakage judging module is used for determining a preset working current threshold value corresponding to the leakage protector based on the installation protection type of the leakage protector; judging whether the leakage protector detects a leakage fault or not based on the current signal acquired by the leakage protector and the preset working current threshold value; if yes, obtaining the leakage current value of the leakage protector.
Optionally, the device further comprises an overvoltage and undervoltage judging module, wherein the overvoltage and undervoltage judging module is used for acquiring the current voltage signal acquired by the leakage protector; if the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the leakage protector detects an undervoltage fault or an overvoltage fault; and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal.
Optionally, the device further includes a phase-failure zero-breaking judging module, where the phase-failure zero-breaking judging module is configured to judge that the leakage protector detects a phase-failure fault or a zero-failure fault if the current voltage signal has a line disconnection or no voltage value in phase; and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal.
Optionally, the device further includes a verification module, where the verification module is configured to perform secondary verification on the leakage current value based on a preset working current threshold corresponding to the leakage protector after the leakage current value of the leakage protector is obtained; and judging whether to execute the operation of determining the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason based on the verification result.
Optionally, the electric leakage judging module is specifically configured to:
if the installation protection type of the leakage protector is total protection of a transformer area, determining a preset working current threshold value corresponding to the leakage protector as a first threshold value; if the installation protection type of the leakage protector is secondary protection, determining a preset working current threshold value corresponding to the leakage protector as a second threshold value; wherein the first threshold is greater than the second threshold.
In this embodiment, the obtaining module is used to obtain the leakage current value and the installation environment of the leakage protector, the obtaining module is used to determine the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason according to the leakage current value and the installation environment, and the sending module is used to generate the leakage alarm reference information based on the leakage reason and the fault position and send the leakage alarm reference information to the user-associated terminal, so as to realize the analysis and the fault positioning of the leakage fault based on the leakage protector, provide the fault reference guiding information for the field operator to check and repair the fault, assist the field operator to quickly check the fault, and provide technical support for realizing the intelligent management of the distribution transformer area.
The leakage fault analysis device provided by the embodiment of the invention can execute the leakage fault analysis method provided by any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method.
It should be noted that, the units and modules included in the above system are only divided according to the functional logic, but not limited to the above division, so long as the corresponding functions can be implemented; in addition, the specific names of the functional units are also only for distinguishing from each other, and are not used to limit the protection scope of the embodiments of the present invention.
Example five
Fig. 5 is a schematic structural diagram of an electronic device according to a fifth embodiment of the present invention. Fig. 5 illustrates a block diagram of an exemplary electronic device 12 suitable for use in implementing embodiments of the present invention. The electronic device 12 shown in fig. 5 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention. Device 12 is typically an electronic device that performs the function of determining the analysis and location of the leakage fault.
As shown in fig. 5, the electronic device 12 is in the form of a general purpose computing device. Components of the electronic device 12 may include, but are not limited to: one or more processors or processing units 16, a memory 28, and a bus 18 connecting the different components, including the memory 28 and the processing unit 16.
Bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, and a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry standard architecture (Industry Standard Architecture, ISA) bus, micro channel architecture (Micro Channel Architecture, MCA) bus, enhanced ISA bus, video electronics standards association (Video Electronics Standards Association, VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnect, PCI) bus.
Electronic device 12 typically includes a variety of computer-readable media. Such media can be any available media that is accessible by electronic device 12 and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 28 may include computer device readable media in the form of volatile memory, such as random access memory (Random Access Memory, RAM) 30 and/or cache memory 32. The electronic device 12 may further include other removable/non-removable, volatile/nonvolatile computer storage media. By way of example only, storage device 34 may be used to read from or write to a non-removable, non-volatile magnetic media (not shown in FIG. 5, commonly referred to as a "hard disk drive"). Although not shown in fig. 5, a disk drive for reading from and writing to a removable nonvolatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from and writing to a removable nonvolatile optical disk (e.g., a Compact Disc-Read Only Memory (CD-ROM), digital versatile Disc (Digital Video Disc-Read Only Memory, DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to bus 18 through one or more data medium interfaces. Memory 28 may include at least one program product 40, with program product 40 having a set of program modules 42 configured to perform the functions of embodiments of the present invention. Program product 40 may be stored, for example, in memory 28, such program modules 42 include, but are not limited to, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules 42 generally perform the functions and/or methods of the embodiments described herein.
The electronic device 12 may also communicate with one or more external devices 14 (e.g., keyboard, mouse, camera, etc., and display), with one or more devices that enable a user to interact with the electronic device 12, and/or with any device (e.g., network card, modem, etc.) that enables the electronic device 12 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 22. Also, the electronic device 12 may communicate with one or more networks (e.g., local area network (Local Area Network, LAN), wide area network Wide Area Network, WAN) and/or a public network, such as the internet) via the network adapter 20. As shown, the network adapter 20 communicates with other modules of the electronic device 12 over the bus 18. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 12, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk array (Redundant Arrays of Independent Disks, RAID) devices, tape drives, data backup storage devices, and the like.
The processor 16 executes various functional applications and data processing by running a program stored in the memory 28, for example, implementing the leakage fault analysis method provided by the above-described embodiment of the present invention, includes:
determining a leakage current value of a leakage protector and an installation environment of the leakage protector;
determining a leakage cause corresponding to the leakage protector and a fault position corresponding to the leakage cause based on the leakage current value and the installation environment;
and generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
Of course, those skilled in the art will understand that the processor may also implement the technical solution of the leakage fault analysis method provided by any embodiment of the present invention.
Example six
A sixth embodiment of the present invention further provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the leakage fault analysis method provided by any embodiment of the present invention, the method including:
determining a leakage current value of a leakage protector and an installation environment of the leakage protector;
determining a leakage cause corresponding to the leakage protector and a fault position corresponding to the leakage cause based on the leakage current value and the installation environment;
and generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal.
The computer storage media of embodiments of the invention may take the form of any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for embodiments of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
Claims (10)
1. A leakage fault analysis method, the method comprising:
determining a leakage current value of a leakage protector and an installation environment of the leakage protector;
determining a leakage cause corresponding to the leakage protector and a fault position corresponding to the leakage cause based on the leakage current value and the installation environment;
generating leakage alarm reference information based on the leakage reason and the fault position, and sending the leakage alarm reference information to a user associated terminal;
the determining, based on the leakage current value and the installation environment, a leakage cause corresponding to the leakage protector and a fault position corresponding to the leakage cause includes:
collecting various sample leakage values, installation environments corresponding to the various sample leakage values, leakage reasons corresponding to the various sample leakage values and fault position sample information in advance, extracting features of the sample information collected in advance, training a fault analysis model based on the extracted features, and determining the leakage reasons and fault positions according to the feature data of the leakage current values, the feature data of the installation environments and the fault analysis model when the current collected leakage current values of the leakage protector and the installation environments of the leakage protector are obtained;
if the leakage current value is between 50mA and 150mA and the installation environment comprises a grass tree, the leakage is caused by small animal electric shock or tree wire-bonding, and the fault position is a tree wire-bonding position or a small animal electric shock position;
if the leakage current value is between 150mA and 5A and the installation environment comprises equipment aging, the leakage is caused by indirect leakage faults caused by equipment insulation damp or aging, or a user steals electricity by using a low-power electric appliance in a line-to-line manner, and the fault position is the equipment insulation damp, equipment aging position or user electricity stealing position;
if the leakage current value is between 5A and 15A and the installation environment comprises metal or the access users exceeds the set quantity, the leakage is caused by metallic circuit bonding, or the users have linear repeated grounding, grounding zero mixed use and high-power electric appliance used by the users to steal electricity from one line to one place, and the fault position is a metallic circuit bonding position or a user electricity stealing position;
if the leakage current value is above 15A and the installation environment comprises metal, the leakage is caused by the fact that a phase line, other metal components and an overhead ground wire are directly adhered to each other to form a wire, or the neutral wires of different transformer areas share or the neutral wires of a plurality of leakage protection outgoing lines of the same transformer area are in mixed connection and sharing, and the fault position is an adhered wire-forming position or a neutral wire mixed connection and sharing position.
2. The method according to claim 1, wherein the method further comprises:
determining the fault time of the leakage protector;
and generating leakage alarm prompt information based on the leakage current value and the fault time, and sending the leakage alarm prompt information to the user associated terminal.
3. The method according to claim 1, wherein the method further comprises:
determining a preset working current threshold corresponding to the leakage protector based on the installation protection type of the leakage protector;
judging whether the leakage protector detects a leakage fault or not based on the current signal acquired by the leakage protector and the preset working current threshold value;
if yes, obtaining the leakage current value of the leakage protector.
4. A method according to claim 3, characterized in that the method further comprises:
acquiring a current voltage signal acquired by the leakage protector;
if the difference value between the current voltage signal and the standard voltage exceeds a set protection threshold value, judging that the leakage protector detects an undervoltage fault or an overvoltage fault;
and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal.
5. The method according to claim 4, wherein the method further comprises:
if the current voltage signal has a line disconnection or no voltage value of the phase, judging that the leakage protector detects a phase failure or zero failure;
and generating a protection trigger signal and sending the protection trigger signal to the user associated terminal.
6. The method according to claim 3, further comprising, after the obtaining the leakage current value of the leakage protector:
performing secondary verification on the leakage current value based on a preset working current threshold corresponding to the leakage protector;
and judging whether to execute the operation of determining the leakage reason corresponding to the leakage protector and the fault position corresponding to the leakage reason based on the verification result.
7. A method according to claim 3, wherein the determining a preset operating current threshold corresponding to the earth leakage protector based on the installation protection type of the earth leakage protector comprises:
if the installation protection type of the leakage protector is total protection of a transformer area, determining a preset working current threshold value corresponding to the leakage protector as a first threshold value;
if the installation protection type of the leakage protector is secondary protection, determining a preset working current threshold value corresponding to the leakage protector as a second threshold value;
wherein the first threshold is greater than the second threshold.
8. An electrical leakage fault analysis apparatus, the apparatus comprising:
the acquisition module is used for determining the leakage current value of the leakage protector and the installation environment of the leakage protector;
the determining module is used for determining a leakage reason corresponding to the leakage protector and a fault position corresponding to the leakage reason based on the leakage current value and the installation environment;
the sending module is used for generating leakage alarm reference information based on the leakage reason and the fault position and sending the leakage alarm reference information to a user associated terminal;
the determining module is specifically configured to collect various sample leakage values, installation environments corresponding to the various sample leakage values, leakage reasons corresponding to the various sample leakage values, and fault location sample information in advance, perform feature extraction on the sample information collected in advance, train a fault analysis model based on the extracted features, and determine the leakage reasons and the fault locations according to feature data of the leakage current values, feature data of the installation environments, and the fault analysis model when the current collected leakage current values of the leakage protector and the installation environments of the leakage protector are obtained;
if the leakage current value is between 50mA and 150mA and the installation environment comprises a grass tree, the leakage is caused by small animal electric shock or tree wire-bonding, and the fault position is a tree wire-bonding position or a small animal electric shock position;
if the leakage current value is between 150mA and 5A and the installation environment comprises equipment aging, the leakage is caused by indirect leakage faults caused by equipment insulation damp or aging, or a user steals electricity by using a low-power electric appliance in a line-to-line manner, and the fault position is the equipment insulation damp, equipment aging position or user electricity stealing position;
if the leakage current value is between 5A and 15A and the installation environment comprises metal or the access users exceeds the set quantity, the leakage is caused by metallic circuit bonding, or the users have linear repeated grounding, grounding zero mixed use and high-power electric appliance used by the users to steal electricity from one line to one place, and the fault position is a metallic circuit bonding position or a user electricity stealing position;
if the leakage current value is above 15A and the installation environment comprises metal, the leakage is caused by the fact that a phase line, other metal components and an overhead ground wire are directly adhered to each other to form a wire, or the neutral wires of different transformer areas share or the neutral wires of a plurality of leakage protection outgoing lines of the same transformer area are in mixed connection and sharing, and the fault position is an adhered wire-forming position or a neutral wire mixed connection and sharing position.
9. An electronic device, the electronic device comprising:
one or more processors;
storage means for storing one or more programs,
the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the leakage fault analysis method of any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the leakage fault analysis method according to any one of claims 1-7.
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