CN110163386B - Pure overhead line fault studying and judging method based on single repair work order - Google Patents
Pure overhead line fault studying and judging method based on single repair work order Download PDFInfo
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- CN110163386B CN110163386B CN201910393290.3A CN201910393290A CN110163386B CN 110163386 B CN110163386 B CN 110163386B CN 201910393290 A CN201910393290 A CN 201910393290A CN 110163386 B CN110163386 B CN 110163386B
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Abstract
The invention relates to a pure overhead line fault studying and judging method based on a single repair work order, which finds a transformer area matched with the repair work order according to a user reporting the repair work order, judges whether the transformer area matched with the repair work order is in a first section from bottom to top according to the sequence of the sections where the transformer areas are positioned, finds a transformer in the transformer area matched with the repair work order according to the conditions of different sections, judges whether the transformer has power failure, judges whether the phase transformer in the upper/lower sections or the same section has power failure according to the conditions, and comprehensively judges that the transformer has low-voltage fault, the transformer body fault or confirms investigation from a section switch; the invention improves the efficiency and accuracy of fault study and judgment, rapidly positions fault points, shortens the fault processing time, optimizes the distribution network fault processing flow and provides powerful support for high-quality power supply service.
Description
Technical Field
The invention relates to a pure overhead line fault studying and judging method based on a single repair work order, and belongs to the field of fault processing.
Background
The operation, maintenance, first-aid repair and other works of the power distribution network are faced to lack of a unified platform, the existing service systems are mutually independent and lack of a perfect integrated comprehensive service application platform, and service data, a GIS map and resource information do not form an organic whole, so that an effective studying and judging early warning means is lacked in the process; due to insufficient department cooperation, aiming at the handling of the emergency, the handling of each business department is relatively independent, a cross-department cooperation mechanism is lacked, the flexible requirement of sharing unified scheduling information cannot be met, and the emergency response speed is seriously influenced; the application of the tail end is weak, and the communication mode from each level of command center to the field tip is single, so that the communication is not smooth and the control is not in place; due to the lack of effective informatization means, field commanding and rush-repair personnel cannot accurately master the operation state, abnormal information and rush-repair execution condition of field power grid equipment; the assistant decision making capability is insufficient, the assistant decision making capability of electronic circulation, advance analysis, early warning reminding, personnel management and control, response command and the like of tasks is insufficient, and the treatment after abnormal burst is too passive.
According to the project, by developing a research on a distribution network operation and maintenance and emergency repair closed-loop management method and based on services and operation data of a D5000 system and a power utilization information acquisition system, fault study and judgment of a feeder line and a transformer are developed, the efficiency and accuracy of fault study and judgment are greatly improved, fault points are quickly located, the fault processing time is shortened, the distribution network fault processing flow is optimized, and powerful support is provided for power supply high-quality service.
Disclosure of Invention
The invention aims to solve the technical problem of providing a pure overhead line fault studying and judging method based on a single repair work order.
The invention adopts the following technical scheme:
a pure overhead line fault studying and judging method based on a single repair work order comprises the following steps:
according to the user reporting the repair work order, finding out the transformer area matched with the repair work order, judging whether the transformer area matched with the repair work order is in the first subsection from bottom to top according to the sequence of the subsections where the transformer area is located, finding out the transformer in the transformer area matched with the repair work order according to the conditions of different subsections, judging whether the transformer has power failure, judging whether the phase transformer in the upper/lower subsection or the same subsection has power failure according to the conditions, and comprehensively judging that the transformer has a low-voltage fault, a transformer body fault or determining to be investigated from a certain subsection switch.
The specific process is as follows:
finding the transformer area matched with the repair work order according to the user reporting the repair work order, and judging whether the transformer area matched with the repair work order is in a first section from bottom to top according to the sequence of the sections where the transformer areas are located:
and 1, when the transformer area matched with the repair work order is in a first section, finding a transformer at the tail position in the transformer area matched with the repair work order, and judging whether the transformer at the tail position has power failure:
1.1, when the transformer at the tail position is electrified and three-phase current and voltage can be called, judging that the fault is a low-voltage fault; informing emergency repair personnel to go to the site for emergency repair of the independent switching station unit and the series of switching station units;
case 1.2, when the transformer at the end of the line is dead and there is a transformer at the same stage in the first segment, determining whether the transformer at the same stage has a power failure:
in case 1.2.1, when the transformer at the same stage is electrified, the transformer without electricity in the first section is judged to be a body fault; informing emergency repair personnel to go to the site for emergency repair;
in case 1.2.2, when the transformer at the same stage is out of power, the transformer at the same stage is judged to have power failure or fault in the whole line; informing the first-aid repair personnel to survey at the starting switch of the first section, or checking a D5000 substation side outgoing switch, and if the outgoing switch is displaced, finishing the investigation;
case 1.3, when the transformer at the end of the line is dead and there is no transformer at the same stage in the first segment, find the transformer in the next segment, and determine whether the transformer in the next segment has a power failure:
1.3.1, when the transformer in the next section is electrified, judging that the transformer in the transformer area matched with the repair work order is a body fault; informing emergency repair personnel to go to the site for emergency repair;
case 1.3.2, when the transformer in the next section is dead, it is determined that there is a power outage or fault on the whole line; informing the first-aid repair personnel to survey at the starting switch of the first section, or checking a D5000 substation side outgoing switch, and if the outgoing switch is displaced, finishing the investigation;
and 2, when the transformer area matched with the repair work order is not in the first section, finding the last-position transformer in the transformer area matched with the repair work order, and judging whether the last-position transformer has power failure:
2.1, when the transformer at the tail position is electrified and three-phase current and voltage can be called, judging that the fault is a low-voltage fault; informing emergency repair personnel to go to the site for emergency repair of the independent switching station unit and the series of switching station units;
case 2.2, when the transformer at the end of the line is dead and the transformer at the same level is in the transformer area matched with the repair order, judging whether the transformer at the same level has power failure:
in case 2.2.1, when the transformer at the same level is electrified, the transformer without electricity in the transformer area matched with the repair order is judged to be a body fault; informing emergency repair personnel to go to the site for emergency repair;
and 2.2.2, when the transformer at the same stage is not electrified, finding the transformer in the previous section by adopting a principle from bottom to top, and judging whether the transformer in the previous section has power failure:
2.2.2.1, when the transformer in the previous section has electricity, the switch of the next section of the section with electricity of the transformer is judged to be switched off, and the switch of the next section of the section with electricity of the transformer is investigated and repaired;
case 2.2.2.2, when the transformer in the previous section is dead and the previous section is the first section, it is determined that the whole line has power failure or fault;
and 2.3, when the transformer at the tail position of the row is not electrified and the transformer at the same level is not arranged in the transformer area matched with the repair work order, directly adopting a principle from bottom to top to find the transformer in the previous section and judge whether the transformer in the previous section has power failure:
2.3.1, when the transformer in the previous section is electrified and the section where the transformer area matched with the repair work order is located has no next section, judging that the switch of the section where the transformer area matched with the repair work order is located is switched off, and surveying and repairing from the switch of the section where the transformer area matched with the repair work order is located;
and 2.3.2, when the transformer in the previous section is electrified and the section where the transformer area matched with the repair work order is located has the next section, finding the transformer in the section next to the section where the transformer area matched with the repair work order is located, and judging whether the transformer has power failure:
situation 2.3.2.1, when the transformer in the next section of the section where the transformer platform area matched with the repair work order is located is electrified, judging that the transformer without electricity in the transformer platform area matched with the repair work order is a body fault; informing emergency repair personnel to go to the site for emergency repair;
2.3.2.2, when the transformer in the next section of the section where the transformer area matched with the repair work order is located is electroless, judging that the switch of the section where the transformer area matched with the repair work order is located is switched off, and surveying and repairing from the switch of the section where the transformer area matched with the repair work order is located;
case 2.3.3, when the transformer in the previous section is dead and the previous section is the first section, determining that the whole line has power failure or fault;
and 2.3.4, when the transformer in the previous section is not electrified and the previous section is not the first section, continuing to adopt a principle from bottom to top to find the transformer in the next previous section and judge whether the transformer in the next previous section has power failure:
2.3.4.1, when the transformer in the previous section is electrified, the switch of the next section of the section with the electrified transformer is judged to be switched off, and the first-aid repair is detected from the switch of the next section of the section with the electrified transformer;
case 2.3.4.2, when the transformer in the next previous segment is dead and the next previous segment is the first segment, then a full line outage or fault is determined.
Further, the method for judging whether the transformer has power failure or not comprises the following steps of testing; when the transformer is called to be tested, and three-phase current and voltage can be called to be tested, the transformer is indicated to be electrified.
Further, the method for judging whether the transformer has power failure includes a power failure event through the transformer, which includes the following specific steps:
finding power-off information sent by the transformer in the distribution automation system according to the time of reporting and repairing the work order, wherein when no power-off information exists before the time of reporting and repairing the work order, the transformer belongs to a low-voltage fault and is normal; when power failure information exists before the time of reporting and repairing the work order and power-on information does not exist after the time of reporting and repairing the work order, the transformer is in a fault state.
Further, the method for judging whether the transformer has power failure or not comprises the steps of calling and testing one transformer and carrying out superposition research and judgment when a power failure event of one transformer is judged.
Further, according to a user reporting a repair work order, finding a transformer area matched with the repair work order by adopting a method of matching the repair work order with the transformer area, wherein the method of matching the repair work order with the transformer area comprises the following steps:
the first method comprises the following steps: and matching the user address in the repair work order with a seven-level address library of the transformers in the marketing system, so that one or more transformers can be matched, and then carrying out fault study and judgment on the matched transformers.
The second method comprises the following steps: if the repair work order contains the number of the user, the only transformer matched with the user can be found according to the number of the user and the corresponding relation between the user and the transformer, and then fault study and judgment are carried out on the transformer.
The invention has the following beneficial effects:
the method classifies the conditions of a three-section three-connection overhead line meeting a single packet repair work order in detail, and has corresponding study and judgment logics for each condition, and when the conditions meet the study and judgment logics, the corresponding logics can be directly found according to the conditions for study and judgment, so as to carry out fault study and judgment, determine the fault range for the on-site inspection maintainers, improve the efficiency of determining the fault point, and if the fault point is determined, the maintainers can be directly arranged for rush repair; core basic research and judgment logic is also provided for fault research and judgment service; the method can also be used as a logic basis for studying and judging faults of the multi-section and multi-contact of the overhead line, namely, the faults of the multi-section and multi-contact of the overhead line can be studied and judged on the basis.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of embodiment 1 in which three sections are provided with a transformer and the third section has a repair report from a user;
FIG. 2 is a schematic diagram of embodiment 2 in which three sections are provided with a transformer and a second section has a repair report from a user;
FIG. 3 is a schematic diagram of embodiment 3 in which a transformer is provided in each of three sections and a repair is made in a first section by a user;
FIG. 4 is a schematic diagram of embodiment 4 in which the third section has two transformers and the third section has a repair reported by a user and the other two sections have one transformer;
FIG. 5 is a schematic diagram of the embodiment 5 in which the second section has two transformers and the second section has a repair reported by a user and the other two sections have one transformer;
FIG. 6 is a schematic diagram showing two transformers in the second section and one transformer in the other two sections of the three sections in example 6, wherein the third section has a repair reported by a user;
FIG. 7 is a schematic diagram of example 7 in which the first section has two transformers and the third section has a repair reported by a user and the other two sections have one transformer;
FIG. 8 is a schematic diagram of the embodiment 8 in which the first section has two transformers and the second section has a repair reported by a user and the other two sections have one transformer;
FIG. 9 is a schematic diagram of an embodiment 9 in which two transformers are provided in a first section of three sections, the first section has a repair reported by a user, and the other two sections have one transformer;
FIG. 10 is a schematic diagram of an embodiment 10 in which a first segment of three segments has one transformer and a third segment has a repair reported by a user and the other two segments have two transformers;
FIG. 11 is a schematic diagram of the embodiment 11 in which a first section has one transformer and a second section has a repair reported by a user, and the other two sections have two transformers;
FIG. 12 is a schematic diagram showing one transformer in a first section and a repair made by a user in the first section and two transformers in the other two sections in example 12;
FIG. 13 is a schematic diagram of the embodiment 13 in which the second section has one transformer and the first section has a repair reported by a user, and the other two sections have two transformers;
FIG. 14 is a schematic diagram of the embodiment 14 in which the second section has one transformer and the second section has a repair reported by a user and the other two sections have two transformers;
FIG. 15 is a schematic diagram of an embodiment 15 in which the third section has one transformer and the second section has a repair reported by a user, and the other two sections have two transformers;
FIG. 16 is a schematic diagram of embodiment 16 in which the third section has one transformer and the first section has a repair reported by a user and the other two sections have two transformers;
FIG. 17 is a schematic diagram of an embodiment 17 in which a third segment with one transformer and a user repair are provided in the third segment and two other segments with two transformers.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail and fully with reference to the accompanying drawings 1-17 and the following detailed description.
According to the condition of three-section and three-connection of the feeder line, the number of the carried public transformers is divided into the following conditions:
as shown in fig. 1, in this embodiment 1, when three segments are provided with one transformer and the third segment is repaired by a user, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) finding a transformer by adopting a method of matching the repair work order with a transformer area according to the user of the repair work order;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if no power loss event occurs in the transformer, judging that the transformer is electrified and can call three-phase current and voltage, if the transformer is in a low-voltage fault, informing emergency repair personnel to carry out on-site emergency repair on an independent switching station unit and a series of switching station units;
(4) if the transformer III is out of power, finding the transformer II by adopting a principle from bottom to top, and carrying out calling test or judging the power failure event of the transformer;
(5) if the transformer is electrified, the switch (c) is disconnected, then emergency repair personnel can be informed to carry out emergency repair, the position of the column switch (c) is dispatched, and the switch (c) is surveyed; if the transformer II is out of power, the transformer I is continuously found, and calling test or judgment of a transformer power failure event is carried out;
(6) if the transformer is electrified, the switch is switched off, rush repair personnel is informed to carry out investigation from the switch, if the transformer is electrified, the power failure or the fault of the whole line is directly judged, the rush repair personnel is informed to carry out investigation at the switch, or the outgoing line switch at the side of the D5000 substation is checked, and if the outgoing line switch is displaced, the investigation is finished.
As shown in fig. 2, in this embodiment 2, when three segments are provided with one transformer and a second segment has a repair reported by a user, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer II by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer II has no power loss event, judging that the transformer II is electrified, calling the three-phase current and voltage, judging that the transformer II has a low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer II is out of power, finding the transformer I by adopting a principle from bottom to top, and carrying out calling test or judging a transformer power failure event;
(5) if the transformer is powered on, finding the transformer and judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(6) if the transformer is electrified, the transformer II has a fault, and emergency repair personnel are informed to go to the site for emergency repair;
(7) if the transformer is out of power, the switch II is switched off, and rush-repair personnel are informed to carry out investigation on the switch II;
(8) if the transformer is not electrified, directly judging the power failure or fault of the whole line, informing emergency maintenance personnel to go to the switch, surveying, or looking up the outgoing switch on the side of the D5000 transformer substation, and if the outgoing switch is shifted, finishing the research.
As shown in fig. 3, in this embodiment 3, when three segments are provided with one transformer and the first segment has a repair reported by a user, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to a user reporting a repair work order, finding a transformer I by adopting a method of matching the repair work order with a transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer has no power loss event, judging that the transformer has power, and can call for the detection of three-phase current and voltage, if the transformer is in a low-voltage fault, informing emergency repair personnel to go to a site for emergency repair;
(4) if the transformer is out of power, finding the transformer II, and judging whether the transformer II is out of power or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, the transformer is failed, and emergency repair personnel are informed to go to the site for emergency repair;
(6) if the transformer is out of power, the power failure or fault of the whole line is directly judged, first-aid repair personnel are informed to go to the switch to carry out surveying, or the outgoing switch on the side of the D5000 transformer substation is checked, and if the outgoing switch is shifted, the judgment is finished.
In this case, the following two sections with several transformers are evaluated in this case.
As shown in fig. 4, in the present embodiment 4, in the case that the third section of the three sections has two transformers, and the third section has a user to repair, and the other two sections have one transformer, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer has power failure or not through calling and testing or a power failure event of the transformer;
(3) if the transformer has no power loss event, judging that the transformer has power, and can call and measure three-phase current and voltage, if the transformer has the power loss event, judging that the transformer has the power, the transformer has the low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer (IV) has no power, finding a transformer (III) in the third section, and judging whether the transformer (III) has power failure or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, judging that the transformer has a fault in the body, and informing emergency repair personnel to carry out emergency repair;
(6) if the transformer III has no power, finding the transformer II by adopting a principle from bottom to top; performing calling test or transformer power failure event judgment;
(7) if the transformer is electrified, the switch III is switched off, then emergency repair personnel can be informed to carry out emergency repair, and the emergency repair personnel are sent to the position of the column switch III to carry out pairing; surveying is carried out by the switch; if the transformer II is out of power, the transformer I is continuously found, and calling test or judgment of a transformer power failure event is carried out;
(8) if the transformer is electrified, the switch is switched off, rush repair personnel is informed to carry out investigation from the switch, if the transformer is electrified, the power failure or the fault of the whole line is directly judged, the rush repair personnel is informed to carry out investigation at the switch, or the outgoing line switch at the side of the D5000 substation is checked, and if the outgoing line switch is displaced, the investigation is finished.
As shown in fig. 5, in this embodiment 5, when the second section of the three sections has two transformers and the second section has a user to repair the second section, and the other two sections have one transformer, the method for studying and judging the pure overhead line fault based on a single repair work order is as follows:
(1) finding a transformer by adopting a method of matching the repair work order with a transformer area according to the user of the repair work order;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if no power loss event occurs in the transformer, judging that the transformer is electrified and can call for the detection of three-phase current and voltage, judging that the transformer is in a low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer III has no power, finding a transformer II in the same third section, and judging whether the transformer II has power failure or not through calling or power failure events of the transformer II;
(5) if the transformer is electrified, the fault of the body of the transformer is judged, and emergency repair personnel are informed to carry out emergency repair;
(6) if the transformer II is out of power, finding the transformer I by adopting a principle from bottom to top, and carrying out calling test or judging a transformer power failure event;
(7) if the transformer is electrified, the switch is switched off, rush repair personnel is informed to carry out investigation from the switch, if the transformer is electrified, the power failure or the fault of the whole line is directly judged, the rush repair personnel is informed to carry out investigation at the switch, or the outgoing line switch at the side of the D5000 substation is checked, and if the outgoing line switch is displaced, the investigation is finished.
As shown in fig. 6, in this embodiment 6, when the second section of the three sections has two transformers, the third section has a user to report and repair, and the other two sections have one transformer, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer has power failure or not through calling and testing or a power failure event of the transformer;
(3) if the transformer has no power loss event, judging that the transformer has power, and can call and measure three-phase current and voltage, if the transformer has the power loss event, judging that the transformer has the power, the transformer has the low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer (IV) has no power, finding the transformer (II) or the transformer (III) by adopting a principle from bottom to top, calling and testing or judging a power-off event of the transformer, and calling and testing the other transformer simultaneously when judging the power-off time of one of the transformers, and carrying out superposition research and judgment;
(5) if at least one of the transformer II or the transformer III is electrified, the fault of the transformer body without electricity is judged, the switch III is switched off, then emergency repair personnel can be informed to carry out emergency repair, the position of the switch III on the column is dispatched, and the switch III is surveyed; if the transformer II and the transformer III are both electroless, the transformer I is continuously found, and calling test or transformer power failure event judgment is carried out;
(6) if the transformer is electrified, the switch is switched off, rush repair personnel is informed to carry out investigation from the switch, if the transformer is electrified, the power failure or the fault of the whole line is directly judged, the rush repair personnel is informed to carry out investigation at the switch, or the outgoing line switch at the side of the D5000 substation is checked, and if the outgoing line switch is displaced, the investigation is finished.
As shown in fig. 7, in this embodiment 7, when a first segment of three segments has two transformers and a third segment has a user reported repair, and the other two segments have one transformer, the method for studying and judging the fault of the pure overhead line based on a single reported repair work order is as follows:
(1) according to the user reporting the repair work order, finding out the transformer by adopting the method of matching the repair work order with the transformer area,
(2) judging whether the transformer has power failure or not through calling and testing or the power failure event of the transformer,
(3) if the transformer has power, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is in a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair
(4) If the transformer (IV) has no power, the transformer (III) is found by adopting the principle from bottom to top, the calling and the detection or the judgment of the power failure event of the transformer are carried out,
(5) if the transformer is electrified, the switch is switched off, then emergency repair personnel can be informed to carry out emergency repair, the position of the column switch is dispatched, and the switch is surveyed; if the transformer (III) is out of power, the transformer (I) or the transformer (II) is continuously found, calling test or judgment of the power failure event of the transformer is carried out, and power failure time judgment is carried out on one of the transformers. Can simultaneously call and test another transformer for superposition study and judgment
(6) If the transformer is electrified or the transformer II can call three-phase current and voltage, the switch II is switched off, then emergency repair personnel can be informed to carry out emergency repair, the position of the pole-mounted switch II is dispatched, and the switch II is surveyed;
(7) if the transformer is not electrified, directly judging the power failure or fault of the whole line, informing emergency maintenance personnel to go to the switch, surveying, or looking up the outgoing switch on the side of the D5000 transformer substation, and if the outgoing switch is shifted, finishing the research.
As shown in fig. 8, in this embodiment 8, when a first segment of three segments has two transformers and a second segment has a user reported repair, and the other two segments have one transformer, the method for studying and judging the fault of the pure overhead line based on a single reported repair work order is as follows:
(1) finding a transformer by adopting a method of matching the repair work order with a transformer area according to the user of the repair work order;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is electrified, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer III has no power, finding the transformer II by adopting a principle from bottom to top;
(5) if the transformer II is electrified, or the transformer I can call three-phase current and voltage;
(6) calling and testing the transformer or judging the power loss event of the transformer;
(7) if the transformer is electrified, the transformer is in fault, and emergency repair personnel are informed to go to the site for emergency repair;
(8) if the transformer is out of power, the switch is switched to inform emergency repair personnel to go to the switch for surveying and find out a fault point for emergency repair.
As shown in fig. 9, in this embodiment 9, when a first segment of three segments has two transformers and the first segment has a user reported repair, and the other two segments have one transformer, the method for studying and judging the fault of the pure overhead line based on a single reported repair work order includes the following steps:
(1) according to the user reporting the repair work order, finding a transformer II by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer II has no power loss event, judging that the transformer II is electrified, calling the three-phase current and voltage, judging that the transformer II has a low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer II is out of power, finding the transformer I in the third section, and judging whether the transformer II has power failure or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, judging that the transformer is in failure, and informing emergency repair personnel to carry out emergency repair;
(6) if the transformer is not electrified, directly judging the power failure or fault of the whole line, informing emergency maintenance personnel to go to the switch, surveying, or looking up the outgoing switch on the side of the D5000 transformer substation, and if the outgoing switch is shifted, finishing the research.
As shown in fig. 10, in this embodiment 10, when a first segment of three segments has one transformer and a third segment has a user reported repair, and the other two segments have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) finding out a transformer by adopting a method of matching the repair work order with a transformer area according to a user of the repair work order;
(2) judging whether the power failure occurs to the fifth transformer or not through calling or power failure events of the transformers;
(3) if no power failure event occurs in the fifth transformer, judging that the fifth transformer is powered on and can call three-phase current and voltage, judging that the transformer is a low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer has no power, finding out the transformer in the third section, and judging whether the transformer has power failure or not by calling or detecting the power failure event of the transformer
(5) If the transformer has electricity, the fault of the body of the transformer is judged, and emergency repair personnel are informed to carry out emergency repair
(6) If the transformer (4) is dead, the procedure of example 6 (4) and the following steps can be referred to for study.
As shown in fig. 11, in this embodiment 11, when a first section of three sections has one transformer and a second section has a user reported repair, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) finding a transformer by adopting a method of matching the repair work order with a transformer area according to the user of the repair work order;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is electrified, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer III has no power, finding a transformer II in the same third section, and judging whether the transformer II has power failure or not through calling or power failure events of the transformer II;
(5) if the transformer is electrified, the fault of the body of the transformer is judged, and emergency repair personnel are informed to carry out emergency repair;
(6) if the transformer is not electrified, finding the transformer from bottom to top, and carrying out calling test or judgment on the transformer power-off event;
(7) if the transformer is electrified, the switch is switched off, rush repair personnel is informed to carry out investigation from the switch, if the transformer is electrified, the power failure or the fault of the whole line is directly judged, the rush repair personnel is informed to carry out investigation at the switch, or the outgoing line switch at the side of the D5000 substation is checked, and if the outgoing line switch is displaced, the investigation is finished.
As shown in fig. 12, in this embodiment 12, when a first section of three sections has one transformer and the first section has a user reported repair, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to a user reporting a repair work order, finding a transformer I by adopting a method of matching the repair work order with a transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is electrified, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer is out of power, finding the transformer II, and judging whether the transformer II is out of power or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, the transformer is failed, and emergency repair personnel are informed to go to the site for emergency repair;
(6) if the transformer is out of power, the power failure or fault of the whole line is directly judged, first-aid repair personnel are informed to go to the switch to carry out surveying, or the outgoing switch on the side of the D5000 transformer substation is checked, and if the outgoing switch is shifted, the judgment is finished.
(7) In this case, the following two sections with several transformers are evaluated in this case.
As shown in fig. 13, in this embodiment 13, when the second section of the three sections has one transformer and the first section has a user reported repair, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer II by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is powered on, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is in a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer II is out of power, finding the transformer I in the third section, and judging whether the transformer II has power failure or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, judging that the transformer is in failure, and informing emergency repair personnel to carry out emergency repair;
(6) if the transformer is not electrified, directly judging the power failure or fault of the whole line, informing emergency maintenance personnel to go to the switch, surveying, or looking up the outgoing switch on the side of the D5000 transformer substation, and if the outgoing switch is shifted, finishing the research.
As shown in fig. 14, in this embodiment 14, when a second section of the three sections has one transformer and the second section has a repair reported by a user, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) finding a transformer by adopting a method of matching the repair work order with a transformer area according to the user of the repair work order;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is electrified, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer III has no power, finding the transformer II by adopting a principle from bottom to top;
(5) if the transformer II is electrified, or the transformer I can call three-phase current and voltage;
(6) calling and testing the transformer or judging the power loss event of the transformer;
(7) if the transformer is electrified, the transformer is in fault, and emergency repair personnel are informed to go to the site for emergency repair;
(8) if the transformer is out of power, the switch is switched off, and emergency repair personnel are informed to go to the switch for surveying and find out a fault point for emergency repair.
As shown in fig. 15, in this embodiment 15, when the third section of the three sections has one transformer, the second section has a user reported repair, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer has power failure or not through calling and testing or a power failure event of the transformer;
(3) if the transformer has no power loss event, judging that the transformer has power, and can call and measure three-phase current and voltage, if the transformer has the power loss event, judging that the transformer has the power, the transformer has the low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer (IV) has no power, finding a transformer (III) in the third section, and judging whether the transformer (III) has power failure or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, judging that the transformer has a fault in the body, and informing emergency repair personnel to carry out emergency repair;
(6) if the transformer (c) is not powered, the procedure of (4) and the following steps in example 6 can be referred to for study.
As shown in fig. 16, in this embodiment 16, when the third section of the three sections has one transformer and the first section has a user reported repair, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) according to the user reporting the repair work order, finding a transformer II by adopting a method of matching the repair work order with the transformer area;
(2) judging whether the transformer is powered off or not through calling or power failure events of the transformer;
(3) if the transformer is electrified, namely no power loss event exists, and three-phase current and voltage can be called up to be detected, the transformer is in a low-voltage fault, and emergency repair personnel are informed to go to the site for emergency repair;
(4) if the transformer II is out of power, finding the transformer I in the third section, and judging whether the transformer II has power failure or not through calling or power failure events of the transformer;
(5) if the transformer is electrified, judging that the transformer is in failure, and informing emergency repair personnel to carry out emergency repair;
(6) if the transformer is not electrified, directly judging the power failure or fault of the whole line, informing emergency maintenance personnel to go to the switch, surveying, or looking up the outgoing switch on the side of the D5000 transformer substation, and if the outgoing switch is shifted, finishing the research.
As shown in fig. 17, in this embodiment 17, when a third section of the three sections has one transformer and the third section has a user to repair the third section, and the other two sections have two transformers, the method for studying and judging the fault of the pure overhead line based on a single repair work order is as follows:
(1) finding out a transformer by adopting a method of matching the repair work order with a transformer area according to a user of the repair work order;
(2) judging whether the power failure occurs to the fifth transformer or not through calling or power failure events of the transformers;
(3) if no power failure event occurs in the fifth transformer, judging that the fifth transformer is powered on and can call three-phase current and voltage, judging that the transformer is a low-voltage fault, and informing emergency repair personnel to go to the site for emergency repair;
(4) if the transformer fifth is out of power, finding the transformer fourth or the transformer third by adopting a principle from bottom to top, calling and detecting or judging the power failure event of the transformer, and calling and detecting the other transformer simultaneously when judging the power failure time of one of the transformers, and carrying out superposition research and judgment;
(5) if the transformer is electrified or the transformer can call three-phase current and voltage, the switch is switched off, and then emergency repair personnel can be informed to carry out emergency repair;
(6) if the transformer (IV) has no electricity and the transformer (III) has electricity, the body of the transformer (IV) has a fault, the switch (III) is switched off, and emergency repair personnel are informed to go to the transformer (IV) and the switch (III) for emergency repair;
(7) if the transformer (IV) has no electricity, the transformer (III) has no electricity, and the principle of going from bottom to top is adopted to go to the transformer (II) or the transformer (I); calling and testing or judging the power-off event of the transformer, and calling and testing the other transformer simultaneously for superposition research and judgment when judging the power-off time of one of the transformers;
(8) if the transformer II is out of power and the transformer I is in power, the transformer II has a fault, the switch II is switched off, and emergency repair personnel are informed to go to the transformer II and the switch II to carry out emergency repair;
(9) if the transformer is not electrified, the power failure or fault of the whole line is directly judged, rush repair personnel is informed to go to the switch, survey is carried out, or the outgoing line switch on the side of the D5000 transformer substation is checked, and if the outgoing line switch is shifted, the complete judgment is carried out.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A pure overhead line fault studying and judging method based on a single repair work order is characterized in that a transformer area matched with the repair work order is found according to a user reporting the repair work order, whether the transformer area matched with the repair work order is in a first section from bottom to top is judged according to the sequence of sections where the transformer areas are located, a transformer in the transformer area matched with the repair work order is found according to the condition of different sections, whether the transformer has power failure is judged, whether the phase transformer in the upper section, the lower section or the same section has power failure is judged according to the condition, and low-voltage faults, transformer body faults or investigation from a section switch are comprehensively judged;
finding the transformer area matched with the repair work order according to the user reporting the repair work order, and judging whether the transformer area matched with the repair work order is in a first section from bottom to top according to the sequence of the sections where the transformer areas are located:
and 1, when the transformer area matched with the repair work order is in a first section, finding a transformer in the transformer area matched with the repair work order, and judging whether the transformer has power failure:
1.1, when the transformer is electrified and three-phase current and voltage can be summoned, judging that the transformer is in low-voltage fault;
case 1.2, when the transformer is dead and there is a transformer of the same stage in the first segment, determining whether the transformer of the same stage has a power failure:
in case 1.2.1, when the transformer at the same stage is electrified, the transformer without electricity in the first section is judged to be a body fault;
in case 1.2.2, when the transformer at the same stage is out of power, the transformer at the same stage is judged to have power failure or fault in the whole line;
case 1.3, when the transformer is dead and there is no transformer of the same stage in the first segment, find the transformer in the next segment, judge whether the transformer in the next segment has power failure:
1.3.1, when the transformer in the next section is electrified, judging that the transformer in the transformer area matched with the repair work order is a body fault;
case 1.3.2, when the transformer in the next section is dead, it is determined that there is a power outage or fault on the whole line;
and 2, when the transformer area matched with the repair work order is not in the first section, finding the transformer in the transformer area matched with the repair work order, and judging whether the transformer has power failure:
2.1, when the transformer is electrified and three-phase current and voltage can be summoned, judging that the transformer is in low-voltage fault;
case 2.2, when the transformer is not powered and the transformer of the same level is in the transformer area matched with the repair order, judging whether the transformer of the same level has power failure:
in case 2.2.1, when the transformer at the same level is electrified, the transformer without electricity in the transformer area matched with the repair order is judged to be a body fault;
and 2.2.2, when the transformer at the same stage is not electrified, finding the transformer in the previous section by adopting a principle from bottom to top, and judging whether the transformer in the previous section has power failure:
2.2.2.1, when the transformer in the previous section has electricity, surveying and repairing from the switch of the next section of the section where the transformer has electricity;
case 2.2.2.2, when the transformer in the previous section is dead and the previous section is the first section, it is determined that the whole line has power failure or fault;
case 2.3, when the transformer is not powered and there is no transformer in the same level in the transformer area matched with the repair order, directly adopting the principle from bottom to top to find the transformer in the previous section and judge whether the transformer in the previous section has power failure:
2.3.1, when the transformer in the previous section is electrified and the section where the transformer area matched with the repair work order is located has no next section, surveying and repairing from the switch of the section where the transformer area matched with the repair work order is located;
and 2.3.2, when the transformer in the previous section is electrified and the section where the transformer area matched with the repair work order is located has the next section, finding the transformer in the section next to the section where the transformer area matched with the repair work order is located, and judging whether the transformer has power failure:
situation 2.3.2.1, when the transformer in the next section of the section where the transformer platform area matched with the repair work order is located is electrified, judging that the transformer without electricity in the transformer platform area matched with the repair work order is a body fault;
2.3.2.2, when the transformer in the next section of the section where the transformer area matched with the repair work order is located is dead, surveying and repairing from the switch of the section where the transformer area matched with the repair work order is located;
case 2.3.3, when the transformer in the previous section is dead and the previous section is the first section, determining that the whole line has power failure or fault;
and 2.3.4, when the transformer in the previous section is not electrified and the previous section is not the first section, continuing to adopt a principle from bottom to top to find the transformer in the next previous section and judge whether the transformer in the next previous section has power failure:
situation 2.3.4.1, when the transformer in the next previous section has power, then the first-aid repair is surveyed from the switch of the next section of the section where the transformer has power;
case 2.3.4.2, when the transformer in the next previous segment is dead and the next previous segment is the first segment, then a full line outage or fault is determined.
2. The pure overhead line fault studying and judging method based on the single repair work order as claimed in claim 1, wherein the method for judging whether the transformer has power failure comprises the steps of passing through a summoning; when the transformer is called to be tested, and three-phase current and voltage can be called to be tested, the transformer is indicated to be electrified.
3. The pure overhead line fault studying and judging method based on the single repair work order as claimed in claim 1 or 2, wherein the method for judging whether the transformer has power failure comprises a power failure event through the transformer, and the specific method is as follows:
finding power-off information sent by the transformer in the distribution automation system according to the time of reporting and repairing the work order, wherein when no power-off information exists before the time of reporting and repairing the work order, the transformer belongs to a low-voltage fault and is normal; when power failure information exists before the time of reporting and repairing the work order and power-on information does not exist after the time of reporting and repairing the work order, the transformer is in a fault state.
4. The method for studying and judging the fault of the pure overhead line based on the single repair work order as claimed in claim 1, wherein the method for judging whether the transformer has the power failure comprises the steps of calling and testing one transformer and simultaneously calling and testing the other transformer for superposition study and judgment when a power failure event of one transformer is judged.
5. The pure overhead line fault studying and judging method based on the single repair order as claimed in claim 1, wherein the method of matching the transformer area with the repair order is adopted to find the transformer area matched with the repair order according to the user of the repair order, and the method of matching the transformer area with the repair order is as follows:
and matching the user address in the repair work order with a seven-level address library of the transformers in the marketing system, so that one or more transformers can be matched, and then carrying out fault study and judgment on the matched transformers.
6. The pure overhead line fault studying and judging method based on the single repair order as claimed in claim 1, wherein the method of matching the transformer area with the repair order is adopted to find the transformer area matched with the repair order according to the user of the repair order, and the method of matching the transformer area with the repair order is as follows:
if the repair work order contains the serial number of the user, the unique transformer matched with the user can be found according to the serial number of the user and the corresponding relation between the user and the transformer, and then the transformer is subjected to fault study and judgment.
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