CN113740768B - Zero line fault detection device and method, electronic equipment and storage medium - Google Patents
Zero line fault detection device and method, electronic equipment and storage medium Download PDFInfo
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- CN113740768B CN113740768B CN202110828501.9A CN202110828501A CN113740768B CN 113740768 B CN113740768 B CN 113740768B CN 202110828501 A CN202110828501 A CN 202110828501A CN 113740768 B CN113740768 B CN 113740768B
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- 238000001514 detection method Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title description 7
- 230000007935 neutral effect Effects 0.000 claims abstract description 36
- 238000004590 computer program Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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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
- G01R31/54—Testing for continuity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/16—Measuring asymmetry of polyphase networks
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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
- G01R31/58—Testing of lines, cables or conductors
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Abstract
The application discloses a zero line fault detection device, a zero line fault detection method, electronic equipment and a storage medium. The zero line fault detection device is applied to three-phase circuit, and the zero line fault detection device includes: the load module comprises a first load, a second load and a third load; wherein the power of the first load, the second load and the third load are mutually unequal; the first acquisition module is electrically connected with the load module and is used for respectively acquiring a first electric signal of the first load, a second electric signal of the second load and a third electric signal of the third load; the fault detection module is used for calculating the balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal, and judging whether the three-phase circuit has zero line fault or not according to the balance point and the neutral point of the three-phase circuit. The embodiment of the application can detect faults of the zero line connected with the three-phase circuit, thereby ensuring the safety of the circuit.
Description
Technical Field
The present invention relates to the field of zero line fault detection technologies, and in particular, to a zero line fault detection device, a method, an electronic device, and a storage medium.
Background
In a three-phase four-wire system circuit, a zero wire is used as a neutral point of the circuit, and plays an important role in the stable and reliable operation of the circuit.
In the related art, when zero line faults such as zero line breakage (zero line breakage) or zero line missing (zero line missing) occur in a three-phase four-wire system circuit, three-phase voltage imbalance can be caused, so that irreversible damage is caused to an ammeter or external equipment.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a zero line fault detection device, a zero line fault detection method, electronic equipment and a storage medium, which can detect faults of zero lines connected with a three-phase circuit, thereby ensuring the safety of the circuit.
A neutral fault detection device according to an embodiment of a first aspect of the present invention is applied to a three-phase circuit including a first hot, a second hot, and a third hot, the neutral fault detection device including: the load module comprises a first load, a second load and a third load, wherein the first load is electrically connected with the first live wire, the second load is electrically connected with the second live wire, and the third load is electrically connected with the third live wire; wherein the power of the first load, the second load and the third load are different from each other; the first acquisition module is electrically connected with the load module and is used for respectively acquiring a first electric signal of the first load, a second electric signal of the second load and a third electric signal of the third load; the fault detection module is electrically connected with the first acquisition module, and is used for calculating a balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal, and judging whether the three-phase circuit has a zero line fault according to the balance point and a neutral point of the three-phase circuit.
The zero line fault detection device provided by the embodiment of the invention has at least the following beneficial effects: the detection of a zero line fault is achieved by manufacturing the inherent disturbance of the three-phase circuit by means of a load module comprising an asymmetric load, by calculating the displacement variation of the balance point and comparing the position of the balance point with the position of the neutral point. And secondly, the primary loop and the secondary loop of the three-phase circuit are isolated by the first acquisition module, so that the operation reliability of the secondary loop is improved.
According to some embodiments of the invention, further comprising: the second acquisition module is electrically connected with the first acquisition module and is used for acquiring the balance electric signals of the balance points; the fault detection module is further electrically connected with the second acquisition module, and is further used for judging whether zero line faults exist in the three-phase circuit according to the balance electric signals and a preset threshold value.
According to some embodiments of the invention, the first load comprises a first resistor, one end of the first resistor is electrically connected with the first live wire, and the other end of the first resistor is electrically connected with the first acquisition module; the second load comprises a second resistor, one end of the second resistor is electrically connected with the second live wire, and the other end of the second resistor is electrically connected with the first acquisition module; the third load comprises a third resistor, one end of the third resistor is electrically connected with the third live wire, and the other end of the third resistor is electrically connected with the first acquisition module; the resistances of the first resistor, the second resistor and the third resistor are different from each other.
According to some embodiments of the invention, the first acquisition module comprises: the first current transformer is electrically connected with the first resistor and is used for collecting the first electric signal; the second current transformer is electrically connected with the second resistor and is used for collecting the second electric signal; and the third current transformer is electrically connected with the third resistor and is used for collecting the third electric signal.
The zero line fault detection method according to the embodiment of the second aspect of the present invention is applied to the zero line fault detection device as described in any one of the above embodiments, and includes: acquiring a first electric signal, a second electric signal and a third electric signal; calculating a balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal; and judging whether the balance point is coincident with the neutral point.
According to some embodiments of the invention, before the acquiring the first, second and third electrical signals, the method further comprises: acquiring a balanced electric signal; judging whether the balanced electric signal is within a preset threshold range or not, and generating a judging result; and if the judging result shows that the balanced electric signal is not in the preset threshold range, executing the step to acquire the first electric signal, the second electric signal and the third electric signal.
An electronic device according to an embodiment of a third aspect of the present invention includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing when executing the program: the zero line fault detection method as described in any one of the embodiments above.
A computer-readable storage medium according to an embodiment of the fourth aspect of the present invention stores computer-executable instructions for: the zero line fault detection method described in any of the embodiments above is performed.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic diagram of a circuit structure of a zero line fault detection device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another circuit structure of a zero line fault detection device according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a zero line fault detection method according to an embodiment of the present invention;
fig. 4 is another flow chart of the zero line fault detection method according to the embodiment of the invention.
Reference numerals:
the three-phase circuit 100, the load module 200, the first load 210, the second load 220, the third load 230, the first acquisition module 300, the fault detection module 400, and the second acquisition module 500.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the following embodiments, the neutral point represents a space point in a normal state assuming a zero line, and the balance point represents a space point in which three phases are balanced in an actual state of the three-phase circuit. The zero line faults comprise faults such as zero breaking, zero missing and the like, and the type of the zero line faults is not particularly limited in the embodiment of the application.
Referring to fig. 1, an embodiment of the present application provides a zero line fault detection device, which is applied to a three-phase circuit 100. The three-phase circuit 100 comprises a first line a, a second line B and a third line C. The zero line fault detection device includes: a load module 200, a first acquisition module 300, and a fault detection module 400. The three-phase circuit 100 comprises a first line a, a second line B and a third line C. The load module 200 comprises a first load 210, a second load 220 and a third load 230, the first load 210 being electrically connected to the first hot a, the second load 220 being electrically connected to the second hot B, the third load 230 being electrically connected to the third hot C. The first acquisition module 300 is electrically connected to the load module 200, and is configured to acquire a first electrical signal of the first load 210, a second electrical signal of the second load 220, and a third electrical signal of the third load 230, respectively. The fault detection module 400 is electrically connected to the first acquisition module 300, and is configured to calculate a position of a balance point (N) of the three-phase circuit 100 according to the first electrical signal, the second electrical signal, and the third electrical signal, and determine whether the three-phase circuit 100 has a zero line fault according to the position of the balance point (N) and the position of the neutral point N of the three-phase circuit 100.
Specifically, one end of the first load 210 is electrically connected to the first live wire a, and the other end of the first load 210 is electrically connected to the first acquisition module 300; one end of the second load 220 is electrically connected with the second live wire B, and the other end of the second load 220 is electrically connected with the first acquisition module 300; one end of the third load 230 is electrically connected to the third live wire C, and the other end of the third load 230 is electrically connected to the first acquisition module 300. When the first load 210, the second load 220, and the third load 230 are symmetrical loads, the neutral line (neutral line) to which the three-phase circuit 100 is connected has no current, and at this time, the three-phase circuit 100 may be connected to the neutral line or not. When the first load 210, the second load 220, and the third load 230 are asymmetric loads, that is, when the power of the first load 210, the second load 220, and the third load 230 are not equal to each other, the zero line is used to equalize the divided voltages of the asymmetric loads. If the three-phase circuit 100 has a zero line fault under the condition that the loads are asymmetric, the balance point (N) of the three-phase circuit 100 will shift to ensure that the partial pressures of the loads are equal.
The first load 210, the second load 220, and the third load 230, which are asymmetrically adjusted or set, are respectively connected to the three-phase circuit 100. The fault detection module 400 calculates the position of the neutral point N of the three-phase circuit 100 in the assumed state, assuming that the zero line is in a normal state, i.e., the zero line is free from zero break or zero deficiency, etc. The first acquisition module 300 acquires the electrical signals of the first, second and third loads 210, 220 and 230, respectively, and transmits the first, second and third electrical signals to the fault detection module 400 through a wired or wireless communication manner. The fault detection module 400 calculates a position of a balance point (N) in an actual state of the three-phase circuit 100 according to the first electrical signal, the second electrical signal, and the third electrical signal. If the position of the balance point (N) is the same as the position of the neutral point N, i.e. if the balance point (N) coincides with the neutral point N, it indicates that the zero line connected to the three-phase circuit 100 is in a normal state; if the position of the balance point (N) is different from the position of the neutral point N, it indicates that the neutral line to which the three-phase circuit 100 is connected is in a neutral fault state.
The determination of the position of the balance point (N) will be described by taking the balance point (N) as an example. The line voltage of the three-phase circuit 100 is calculated from the first, second and third electrical signals, and the offset angle of the balance point (N) is calculated from the line voltage and the cosine law, thereby obtaining the spatial position of the balance point (N).
The zero line fault detection device provided by the embodiment of the application realizes the detection of the zero line fault by manufacturing the inherent disturbance of the three-phase circuit 100 through the load module 200 comprising the asymmetric load, calculating the displacement change of the balance point (N), and comparing the position of the balance point (N) with the position of the neutral point N. Second, the primary loop and the secondary loop of the three-phase circuit 100 are isolated by the first acquisition module 300, so that the operation reliability of the secondary loop is improved.
Referring to fig. 2, in some embodiments, the neutral fault detection apparatus further includes: a second acquisition module 500. The second acquisition module 500 is electrically connected to the first acquisition module 300, and the second acquisition module 500 is used for acquiring balanced electrical signals of a balance point (N). The fault detection module 400 is further electrically connected to the second acquisition module 500, and the fault detection module 400 is further configured to determine whether the three-phase circuit 100 has a zero line fault according to the balanced electrical signal and a preset threshold. Specifically, the second acquisition module 500 is configured to acquire an electrical signal of the balance point (N), and send the balanced electrical signal to the fault detection module 400 through wired communication or wireless communication. The fault detection module 400 judges whether the balanced electric signal is within a preset threshold range, if the balanced electric signal is within the threshold range, the zero line connected with the three-phase circuit 100 is in a normal state, and the positions of the balance point (N) and the neutral point N are not required to be judged; if the balanced electrical signal is not within the threshold range, it indicates that there is a possibility of a fault in the zero line connected to the three-phase circuit 100, and the positions of the balance point (N) and the neutral point N should be determined to further determine whether the zero line connected to the three-phase circuit 100 has a zero line fault, thereby improving the detection efficiency of the zero line fault. It may be appreciated that the numerical range included in the preset threshold range may be adaptively selected according to actual needs, and embodiments of the present application are not particularly limited.
In some embodiments, the first load 210 includes a first resistance Ra; the second load 220 includes a second resistor Rb; the third load 230 includes a third resistance Rc. One end of the first resistor Ra is electrically connected with the first live wire a, and the other end of the first resistor Ra is electrically connected with the first acquisition module 300. One end of the second resistor Rb is electrically connected with the second live wire B, and the other end of the second resistor Rb is electrically connected with the first acquisition module 300. One end of the third resistor Rc is electrically connected to the third live wire C, and the other end of the third resistor Rc is electrically connected to the first collecting module 300. The resistances of the first resistor Ra, the second resistor Rb, and the third resistor Rc are different from each other. Specifically, the first live wire a, the second live wire B, and the third live wire C are respectively connected with the asymmetric load first resistor Ra, the second resistor Rb, and the third resistor Rc correspondingly. The first resistor Ra, the second resistor Rb, and the third resistor Rc are used to make an inherent disturbance to the three-phase circuit 100, so that the fault detection module 400 determines whether a zero line fault exists in a zero line connected to the three-phase circuit 100 according to the position of the balance point (N) and the position of the neutral point N. It is to be understood that the resistance values of the first resistor Ra, the second resistor Rb and the third resistor Rc may be adaptively selected according to actual needs, and the embodiment of the present application is not particularly limited.
In some embodiments, the first acquisition module 300 includes: the first current transformer Ua, the second current transformer Ub and the third current transformer Uc. The first current transformer Ua is electrically connected with the first resistor Ra and is used for collecting a first electric signal. The second current transformer Ub is electrically connected with the second resistor Rb and is used for collecting a second electric signal; the third current transformer Uc is electrically connected to a third resistor Rc for collecting a third electrical signal. Specifically, the primary circuit and the secondary circuit of the three-phase circuit 100 are isolated by the first current transformer Ua, the second current transformer Ub, and the third current transformer Uc, thereby improving the stability of the secondary circuit. In some specific embodiments, the second acquisition module 500 includes a fourth current transformer In. The first current transformer Ua, the second current transformer Ub, the third current transformer Uc and the fourth current transformer In are respectively configured to collect electrical signals of the first resistor Ra, the second resistor Rb, the third resistor Rc and the balance point (N), so that the fault detection module 400 determines whether a zero line fault exists In the zero line connected to the three-phase circuit 100 according to the electrical signals.
Referring to fig. 3, the application further provides a zero line fault detection method. The zero line fault detection method comprises the following steps: s100, acquiring a first electric signal, a second electric signal and a third electric signal; s200, calculating a balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal; s300, judging whether the balance point and the neutral point are overlapped.
Specifically, the fault detection module acquires the first electric signal, the second electric signal and the third electric signal acquired by the first acquisition module in a wired communication mode or a wireless communication mode, and calculates the actual balance point position of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal. For example, line voltages of the three-phase circuit are calculated from the first electric signal, the second electric signal, and the third electric signal, and offset angles of the balance points are calculated from the line voltages and the cosine theorem, thereby obtaining spatial positions of the balance points. The neutral point position of the three-phase circuit under the assumed state is calculated by the fault detection module, and the neutral point position is compared with the balance point position. If the balance point is the same as the neutral point, namely if the balance point coincides with the neutral point, indicating that a zero line connected with the three-phase circuit is in a normal state; and if the balance point position is different from the neutral point position, indicating that the zero line connected with the three-phase circuit is in a zero line fault state.
Referring to fig. 4, in some embodiments, the zero line fault detection method further includes, prior to step S100, the steps of: s400, acquiring a balanced electric signal; s500, judging whether the balanced electric signal is within a preset threshold range, and generating a judging result.
Specifically, the fault detection module acquires the balance electric signal acquired by the second acquisition module through a wired communication mode or a wireless communication mode, and judges whether the balance electric signal is within a preset threshold range. If the balanced electric signal is in the threshold range, the state of the zero line connected with the three-phase circuit is normal, and the positions of the balance point and the neutral point are not required to be judged; if the balanced electric signal is not in the threshold range, the situation that the zero line connected with the three-phase circuit is likely to have faults is indicated, and the positions of the balance points and the neutral points are judged to further determine whether the zero line fault exists in the three-phase circuit, so that the detection efficiency of the zero line fault is improved. It may be appreciated that the numerical range included in the preset threshold range may be adaptively selected according to actual needs, and embodiments of the present application are not particularly limited.
The embodiment of the application also provides electronic equipment. The electronic device includes: at least one processor, and a memory communicatively coupled to the at least one processor. Wherein the memory stores instructions that are executed by the at least one processor to cause the at least one processor to implement the zero line fault detection method as described in any of the implementations above when executing the instructions.
The embodiment of the application also provides a computer readable storage medium, which stores computer executable instructions for: the zero line fault detection method described in any of the implementations above is performed.
According to the zero line fault detection device, method, electronic equipment and storage medium, the first load, the second load and the second load which are asymmetric are arranged, the neutral point position in the assumed state and the balance point position in the actual state are calculated, and the detection of the zero line fault of the three-phase circuit is realized according to the comparison and judgment result of the neutral point position and the balance point position.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.
Claims (5)
1. Zero line fault detection device is applied to three-phase circuit, three-phase circuit includes first live wire, second live wire and third live wire, its characterized in that, zero line fault detection device includes:
The load module comprises a first load, a second load and a third load, wherein the first load is electrically connected with the first live wire, the second load is electrically connected with the second live wire, and the third load is electrically connected with the third live wire; wherein the power of the first load, the second load and the third load are different from each other;
the first acquisition module is electrically connected with the load module and is used for respectively acquiring a first electric signal of the first load, a second electric signal of the second load and a third electric signal of the third load;
The fault detection module is electrically connected with the first acquisition module and is used for calculating a balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal and judging whether the three-phase circuit has a zero line fault or not according to the balance point and a neutral point of the three-phase circuit;
The second acquisition module is electrically connected with the first acquisition module and is used for acquiring the balance electric signals of the balance points; the second acquisition module comprises a fourth current transformer and is used for acquiring balanced electric signals of the balance point; the fault detection module is further electrically connected with the second acquisition module and is further used for judging whether zero line faults exist in the three-phase circuit according to the balance electric signals and a preset threshold value;
the first load comprises a first resistor, one end of the first resistor is electrically connected with the first live wire, and the other end of the first resistor is electrically connected with the first acquisition module;
the second load comprises a second resistor, one end of the second resistor is electrically connected with the second live wire, and the other end of the second resistor is electrically connected with the first acquisition module;
The third load comprises a third resistor, one end of the third resistor is electrically connected with the third live wire, and the other end of the third resistor is electrically connected with the first acquisition module; the resistance values of the first resistor, the second resistor and the third resistor are different from each other;
The first acquisition module comprises: the first current transformer is electrically connected with the first resistor and is used for collecting the first electric signal; the second current transformer is electrically connected with the second resistor and is used for collecting the second electric signal; and the third current transformer is electrically connected with the third resistor and is used for collecting the third electric signal.
2. The zero line fault detection method applied to the zero line fault detection device as claimed in claim 1, comprising:
acquiring a first electric signal, a second electric signal and a third electric signal;
Calculating a balance point of the three-phase circuit according to the first electric signal, the second electric signal and the third electric signal;
And judging whether the balance point is coincident with the neutral point.
3. The neutral line fault detection method as claimed in claim 2, further comprising, prior to the acquiring the first electrical signal, the second electrical signal, and the third electrical signal:
acquiring a balanced electric signal;
Judging whether the balanced electric signal is within a preset threshold range or not, and generating a judging result;
and if the judging result shows that the balanced electric signal is not in the preset threshold range, executing the step to acquire the first electric signal, the second electric signal and the third electric signal.
4. An electronic device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing when executing the program:
A zero line fault detection method as claimed in any one of claims 2 to 3.
5. A computer-readable storage medium storing computer-executable instructions for:
A zero line fault detection method as claimed in any one of claims 2 to 3.
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