CN112595925A - 10kV distribution network ground fault process processing method and system - Google Patents
10kV distribution network ground fault process processing method and system Download PDFInfo
- Publication number
- CN112595925A CN112595925A CN202011382530.9A CN202011382530A CN112595925A CN 112595925 A CN112595925 A CN 112595925A CN 202011382530 A CN202011382530 A CN 202011382530A CN 112595925 A CN112595925 A CN 112595925A
- Authority
- CN
- China
- Prior art keywords
- grounding
- fault
- line
- grounded
- bus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 230000008439 repair process Effects 0.000 claims abstract description 27
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims description 32
- 238000007689 inspection Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 8
- 238000011282 treatment Methods 0.000 claims description 7
- 238000012790 confirmation Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 claims description 2
- 230000008447 perception Effects 0.000 abstract description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Images
Classifications
-
- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
本发明公开了一种10kV配网接地故障的过程处理方法及系统，包括：当电网发生接地时，判断变电站内小电流接地选线装置是否动作，若动作则对相应线路进行短时停电操作确认：若接地复归，则证实此线路接地，对此线路进行巡视、隔离、处理；同时，电网发生接地时，判断接地范围内是否有对应的95598故障报修工单：若有相应工单，则将故障地点告知设备运维单位，立即对该地点故障进行巡视，确认是否由此故障导致线路接地；如果小电流接地选线装置未能正确动作且无95598故障报修工单，则再采取短时停电的方法对接地进行处理。既可以第一时间快速定位接地线路及接地故障点，降低接地故障对人身、设备造成的危害，又可以减少客户的停电感知、提高供电可靠性。
The invention discloses a process processing method and system for the grounding fault of a 10kV distribution network. : If the grounding returns, it is confirmed that the line is grounded, and the line is inspected, isolated and processed; at the same time, when the power grid is grounded, it is judged whether there is a corresponding 95598 fault repair work order within the grounding range: if there is a corresponding work order, it will be Inform the equipment operation and maintenance unit of the fault location, and immediately inspect the fault at the location to confirm whether the fault causes the line to be grounded; if the small current grounding line selection device fails to operate correctly and there is no 95598 fault repair work order, then take a short-term power outage method to deal with the grounding. It can not only quickly locate the grounding line and the grounding fault point at the first time, reduce the harm caused by the grounding fault to people and equipment, but also reduce the power failure perception of customers and improve the reliability of power supply.
Description
Technical Field
The invention belongs to the technical field of power system distribution networks, and particularly relates to a 10kV distribution network ground fault process processing method and system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In a 10kV distribution network, grounding is a very common fault, and correct and rapid searching and processing of a fault point are the key points of safe operation of a distribution network system. When a power grid is grounded, the traditional processing method adopts a short-time power failure method, and the actual working experience of distribution network regulators is utilized to pull the distribution network lines in sequence until the grounding line is determined.
However, this method relies on the experience of the operator, has certain limitations, and can cause the customer of the non-grounded line to have a power failure in a short time, increase the customer power failure perception, and reduce the power supply reliability.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a process processing method for the ground fault of a 10kV distribution network, which is characterized in that on the basis of the traditional ground processing method, a small-current ground line selection device and a 95598 fault report repair work order are utilized to cooperatively judge a ground line, so that the probability of correctly judging the ground line is greatly improved, and the power supply reliability is improved.
In order to achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
in a first aspect, a 10kV distribution network ground fault process processing method is disclosed, which includes:
when the power grid is grounded, whether a low-current grounding line selection device in the transformer substation acts is judged, and if the low-current grounding line selection device acts, short-time power failure operation confirmation is carried out on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
meanwhile, when the power grid is grounded, whether a corresponding 95598 fault report repair work order exists in the grounding range is judged: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is patrolled, and whether the line is grounded due to the fault is determined;
if the small-current grounding line selection device can not act correctly and no 95598 fault repair work order is reported, the grounding is processed by adopting a short-time power failure method, and the line is straightened one by one until the grounding is restored.
According to the further technical scheme, if the grounding is not restored after the test pulling one by one, the grounding of the bus is judged to be the grounding between two or more lines, the bus, the accessory equipment and the switch from the main transformer to the low-voltage side. At the moment, all the lines on the bus need to be pulled, if the grounding is reset, two or more lines are judged to be grounded simultaneously, and the lines are sequentially sent one by one until the grounding line is determined.
The further technical scheme is that the method for short-time power failure is used for processing grounding, and comprises the following specific steps:
and (3) bus segmentation, determining grounding buses, pulling lines on the grounding buses one by one, judging whether grounding is recovered, if so, inspecting, isolating and processing the grounding lines, otherwise, judging that two or more lines or buses or the low-voltage side of a main transformer are grounded, and pulling all the lines on the buses out.
The technical scheme is that after all lines on a bus are pulled out, whether grounding is reset or not is judged, if yes, two or more lines are grounded, all the lines are powered one by one, whether grounding is achieved or not is judged, if yes, the lines are pulled out, all the grounded lines are subjected to inspection, isolation and processing, and if not, the lines are kept in a power-on state.
According to the technical scheme, after all lines on the bus are pulled out, whether grounding is reset or not is judged, if not, the low-voltage side of the bus and the main transformer are grounded, line loads are taken out through a communication line, a low-voltage side switch of the main transformer is pulled out, a section switch is closed, whether grounding is transferred or not is judged, if yes, equipment on the bus and the bus are grounded, the bus is powered off, and otherwise, the low-voltage side of the main transformer is grounded, and the main transformer is powered off.
According to the further technical scheme, when the low-current grounding line selection device in the transformer substation acts, a line is pulled and a line selection line is selected, whether grounding is reset is judged, if not, the bus is divided, and the grounding bus is determined.
According to the further technical scheme, when a corresponding 95598 fault repair work order exists in the grounding range, the corresponding line is pulled, whether grounding is recovered or not is judged, if not, the bus is divided, and the grounding bus is determined.
In a second aspect, a 10kV distribution network ground fault process processing system is disclosed, which comprises:
and the low-current grounding line selection processing module is used for judging whether a low-current grounding line selection device in the transformer substation acts when the power grid is grounded, and if the low-current grounding line selection device acts, performing short-time power failure operation confirmation on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
and the fault repair work order processing module is used for judging whether a corresponding 95598 fault repair work order exists in the grounding range when the power grid is grounded: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is patrolled, and whether the line is grounded due to the fault is determined;
and the short-time power failure processing module is used for processing the grounding by adopting a short-time power failure method if the small-current grounding line selection device cannot act correctly and no 95598 fault repair work order is reported, and straightening one by one until the grounding returns.
The above one or more technical solutions have the following beneficial effects:
on the basis of a traditional grounding processing method, two methods of a low-current grounding line selection device and a 95598 fault repair work order are added, a low-current grounding line selection technology, the 95598 fault repair work order and the traditional grounding processing method are combined, the grounding fault is quickly and accurately processed, a grounding line and a grounding fault point can be quickly positioned in the first time, damage to human bodies and equipment caused by the grounding fault is reduced, power failure perception of customers can be reduced, and power supply reliability is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic flow chart of an embodiment of the present invention.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
Example one
Referring to fig. 1, the present embodiment discloses a process processing method for a 10kV distribution network ground fault, including:
when the power grid is grounded, judging whether the small current line selection acts, judging whether a 95598 fault work order exists or not, if not, converting the bus to split to determine a grounding bus, if the 95598 fault work order exists, pulling a corresponding line, judging whether the grounding is reset or not, if so, inspecting, isolating and processing the grounding line, otherwise, converting the bus to split to determine the grounding bus;
if the small current line selection action is carried out, pulling a line selection circuit, otherwise, rotating the bus for division, determining a grounding bus, continuously judging whether grounding returns after pulling the line selection circuit, if so, inspecting, isolating and processing the grounding line, and if not, rotating the bus for division, and determining the grounding bus;
after the bus is divided and the grounding bus is determined, pulling circuits on the grounding bus one by one in a trial manner, judging whether grounding is reset again, if yes, inspecting, isolating and processing the grounding circuit, if grounding is not reset, judging that two or more circuits or buses or main transformer low-voltage sides are grounded, pulling circuits on the buses, judging whether grounding is reset again, if yes, grounding the two or more circuits, all the circuits, feeding power one by one, judging whether grounding is performed again, if yes, pulling the circuits, inspecting, isolating and processing all the grounding circuits, and if not, keeping the power feeding state of the circuits; and when judging whether the grounding is reset again, if not, grounding the low-voltage side of the bus and the main transformer, and calling out line load through a communication line, or pulling off a low-voltage side switch of the main transformer, closing a section switch, and judging whether the grounding is transferred, if so, grounding equipment on the bus and the bus, and processing the power failure of the bus, otherwise, grounding the low-voltage side of the main transformer, and processing the power failure of the main transformer.
When the power grid is grounded, checking whether a low-current grounding line selection device in the transformer substation selects a line or not to determine a grounding line; meanwhile, a 95598 fault repair system is checked, and whether a corresponding 95598 fault repair work order exists in a fault range or not is judged to determine a grounding area. And then, pulling the corresponding line according to the information, if the grounding is reset, determining that the line is grounded, and inspecting, isolating and processing the line.
If the small-current grounding line selection device can not act correctly and no 95598 fault repair work order is reported, the grounding is processed by adopting a short-time power failure method, and the line is straightened one by one until the grounding is restored.
And if the grounding is not restored after the test pulling one by one, the grounding of the bus is judged to be the grounding between two or more lines, the bus, the accessory equipment and the main transformer to low-voltage side switch. At the moment, all the lines on the bus need to be pulled, if the grounding is reset, two or more lines are judged to be grounded simultaneously, and the lines are sequentially sent one by one until the grounding line is determined. If the grounding is not reset, the bus and the accessory equipment and the main transformer are judged to be grounded to the low-voltage side switch, the operation mode in the transformer substation needs to be adjusted (the main transformer low-voltage side switch is pulled open and the section switch is closed) while the line load is called out to supply power through the interconnection line, if the other bus is grounded, the bus and the accessory equipment are judged to be grounded, and the bus is powered off; and if the grounding is reset, the main transformer is judged to be indirectly grounded to the low-voltage side switch, and the main transformer is subjected to power failure treatment.
Compared with the traditional grounding trial-pulling processing method, the grounding processing method integrates the action condition of the low-current grounding line selection device and the handling condition of the 95598 fault repair work order, is convenient for quickly and accurately positioning a grounding line or a grounding area, improves the grounding processing efficiency, reduces the power failure perception of customers, and improves the power supply reliability.
Example two
The present invention provides a computing device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps in the first embodiment.
EXAMPLE III
An object of the present embodiment is to provide a computer-readable storage medium.
A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, performs the steps of the first embodiment.
Example four
The purpose of this embodiment is to provide a 10kV distribution network ground fault's process processing system, including: a small current grounding line selection device and a 95598 fault repair reporting system;
when the power grid is grounded, whether a low-current grounding line selection device in the transformer substation acts is judged, and if the low-current grounding line selection device acts, short-time power failure operation confirmation is carried out on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
meanwhile, when the power grid is grounded, whether a corresponding 95598 fault repair work order of the 95598 fault repair system exists in the grounding range is judged: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is immediately patrolled, and whether the line is grounded due to the fault is determined;
if the small current grounding line selection device can not act correctly and no 95598 fault repair work order is reported, the method of short-time power failure is adopted to process grounding.
EXAMPLE five
The purpose of this embodiment is to provide a 10kV distribution network ground fault's process processing system, including:
and the low-current grounding line selection processing module is used for judging whether a low-current grounding line selection device in the transformer substation acts when the power grid is grounded, and if the low-current grounding line selection device acts, performing short-time power failure operation confirmation on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
and the fault repair work order processing module is used for judging whether a corresponding 95598 fault repair work order exists in the grounding range when the power grid is grounded: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is patrolled, and whether the line is grounded due to the fault is determined;
and the short-time power failure processing module is used for processing the grounding by adopting a short-time power failure method if the small-current grounding line selection device cannot act correctly and no 95598 fault repair work order is reported, and straightening one by one until the grounding returns.
The steps involved in the apparatuses of the above second, third and fourth embodiments correspond to the first embodiment of the method, and the detailed description thereof can be found in the relevant description of the first embodiment. The term "computer-readable storage medium" should be taken to include a single medium or multiple media containing one or more sets of instructions; it should also be understood to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by a processor and that cause the processor to perform any of the methods of the present invention.
Those skilled in the art will appreciate that the modules or steps of the present invention described above can be implemented using general purpose computer means, or alternatively, they can be implemented using program code that is executable by computing means, such that they are stored in memory means for execution by the computing means, or they are separately fabricated into individual integrated circuit modules, or multiple modules or steps of them are fabricated into a single integrated circuit module. The present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A10 kV distribution network ground fault process processing method is characterized by comprising the following steps:
when the power grid is grounded, whether a low-current grounding line selection device in the transformer substation acts is judged, and if the low-current grounding line selection device acts, short-time power failure operation confirmation is carried out on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
meanwhile, when the power grid is grounded, whether a corresponding 95598 fault report repair work order exists in the grounding range is judged: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is patrolled, and whether the line is grounded due to the fault is determined;
if the small-current grounding line selection device can not act correctly and no 95598 fault repair work order is reported, the grounding is processed by adopting a short-time power failure method, and the line is straightened one by one until the grounding is restored.
2. The method for processing the process of the ground fault of the 10kV distribution network, according to claim 1, wherein if the ground is not restored after the strip-by-strip trial pulling, the bus ground is determined to be indirect ground between two or more lines, buses and accessory equipment, and a main transformer to a low-voltage side switch. At the moment, all the lines on the bus need to be pulled, if the grounding is reset, two or more lines are judged to be grounded simultaneously, and the lines are sequentially sent one by one until the grounding line is determined.
3. The process processing method for the ground fault of the 10kV distribution network, as claimed in claim 1, is characterized in that the short-time power failure method processes the ground, and comprises the following steps:
and (3) bus segmentation, determining grounding buses, pulling lines on the grounding buses one by one, judging whether grounding is recovered, if so, inspecting, isolating and processing the grounding lines, otherwise, judging that two or more lines or buses or the low-voltage side of a main transformer are grounded, and pulling all the lines on the buses out.
4. The method for processing the grounding fault of the 10kV distribution network according to claim 3, wherein after all lines on the bus are pulled out, whether grounding is returned or not is judged, if yes, two or more lines are grounded, all lines are powered on one by one, whether grounding is judged, if yes, the lines are pulled out, all grounded lines are subjected to inspection, isolation and processing, and if not, the lines are kept in a power-on state.
5. The method according to claim 3, wherein after the lines on the bus are all pulled out, whether the grounding is recovered is judged, if not, the low-voltage side of the bus and the main transformer are grounded, the line load is called out through the interconnection line, the low-voltage side switch of the main transformer is pulled out, the section switch is closed, whether the grounding is transferred is judged, if yes, the equipment on the bus and the bus are grounded, the bus is powered off, otherwise, the low-voltage side of the main transformer is grounded, and the main transformer is powered off.
6. The process processing method for the ground fault of the 10kV distribution network, as recited in claim 1, is characterized in that when a low-current grounding line selection device in a transformer substation acts, a line is pulled and a line is selected, whether grounding is returned is judged, if not, a bus is split, and a grounding bus is determined.
7. The process processing method for the ground fault of the 10kV distribution network, as claimed in claim 1, wherein when the corresponding 95598 fault report work order exists in the grounding range, the corresponding line is pulled out, whether grounding is recovered is judged, if not, the bus is divided, and the grounding bus is determined.
8. A10 kV distribution network ground fault process processing system is characterized by comprising:
and the low-current grounding line selection processing module is used for judging whether a low-current grounding line selection device in the transformer substation acts when the power grid is grounded, and if the low-current grounding line selection device acts, performing short-time power failure operation confirmation on a corresponding line: if the grounding is reset, the grounding of the line is verified, and the line is subjected to inspection, isolation and treatment;
and the fault repair work order processing module is used for judging whether a corresponding 95598 fault repair work order exists in the grounding range when the power grid is grounded: if the corresponding work order exists, the fault location is informed to an equipment operation and maintenance unit, the fault of the location is patrolled, and whether the line is grounded due to the fault is determined;
and the short-time power failure processing module is used for processing the grounding by adopting a short-time power failure method if the small-current grounding line selection device cannot act correctly and no 95598 fault repair work order is reported, and straightening one by one until the grounding returns.
9. A computing device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any of claims 1 to 7 are performed when the program is executed by the processor.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, is adapted to carry out the steps of the method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382530.9A CN112595925B (en) | 2020-12-01 | 2020-12-01 | 10kV distribution network ground fault process processing method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011382530.9A CN112595925B (en) | 2020-12-01 | 2020-12-01 | 10kV distribution network ground fault process processing method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112595925A true CN112595925A (en) | 2021-04-02 |
| CN112595925B CN112595925B (en) | 2023-01-31 |
Family
ID=75188820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011382530.9A Active CN112595925B (en) | 2020-12-01 | 2020-12-01 | 10kV distribution network ground fault process processing method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112595925B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116308278A (en) * | 2023-03-14 | 2023-06-23 | 广东电网有限责任公司茂名供电局 | Maintenance management method and system based on OSB bus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323743A (en) * | 2013-06-10 | 2013-09-25 | 山西太钢不锈钢股份有限公司 | Method for looking up ground faults by means of integrated automation transformer substation background machine |
| CN106908693A (en) * | 2017-03-06 | 2017-06-30 | 国网浙江苍南县供电有限责任公司 | A kind of arc suppression coil earthing system single-phase grounding selecting method of high-accuracy |
| CN111579919A (en) * | 2020-04-14 | 2020-08-25 | 威胜电气有限公司 | Power distribution network single-phase earth fault detection method and system |
| CN111766474A (en) * | 2020-07-07 | 2020-10-13 | 上海华立软件系统有限公司 | Low-current grounding auxiliary line selection method |
-
2020
- 2020-12-01 CN CN202011382530.9A patent/CN112595925B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323743A (en) * | 2013-06-10 | 2013-09-25 | 山西太钢不锈钢股份有限公司 | Method for looking up ground faults by means of integrated automation transformer substation background machine |
| CN106908693A (en) * | 2017-03-06 | 2017-06-30 | 国网浙江苍南县供电有限责任公司 | A kind of arc suppression coil earthing system single-phase grounding selecting method of high-accuracy |
| CN111579919A (en) * | 2020-04-14 | 2020-08-25 | 威胜电气有限公司 | Power distribution network single-phase earth fault detection method and system |
| CN111766474A (en) * | 2020-07-07 | 2020-10-13 | 上海华立软件系统有限公司 | Low-current grounding auxiliary line selection method |
Non-Patent Citations (1)
| Title |
|---|
| 张志军: "现阶段10kV配网系统母线电压异常判别及故障分析", 《城市建设理论研究（电子版）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116308278A (en) * | 2023-03-14 | 2023-06-23 | 广东电网有限责任公司茂名供电局 | Maintenance management method and system based on OSB bus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112595925B (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102903026B (en) | Secondary equipment of intelligent converting station dynamic reconfiguration system and method | |
| Carpaneto et al. | Evaluation of the probability density functions of distribution system reliability indices with a characteristic functions-based approach | |
| CN112595925A (en) | 10kV distribution network ground fault process processing method and system | |
| CN109460896B (en) | Automatic scanning analysis method for N-1 risk of 110kV line of power grid | |
| CN109656213B (en) | Man-machine interface system with power-loss protection mechanism and distributed control system | |
| CN117913754A (en) | Line single-phase ground fault identification positioning method and system | |
| CN110927518B (en) | Single-phase grounding fault pull route selection method for small current grounding system | |
| CN211718426U (en) | Direct current grounding prevention line inspection device | |
| CN114997696A (en) | Dynamic assessment method, device and computer equipment for nuclear power plant shutdown and shutdown risk | |
| CN113281560A (en) | Method and device for acquiring maximum short-circuit current value of in-service transformer | |
| CN114709860A (en) | Pre-control method and device for safe and stable operation of power grid | |
| CN113626459B (en) | Model matching method and device, centralized control equipment and storage medium | |
| CN116777421B (en) | Emergency simulation method and system based on urban electric power maintenance | |
| Pengxiang et al. | Practice and strategy for condition based maintenance of power supply equipment | |
| CN113904919A (en) | Safety and stability control system channel fault positioning method based on full link alarm | |
| Ren et al. | Transformer fault analysis based on Bayesian networks and importance measures | |
| CN113541093A (en) | Intelligent distributed feeder automation function test method for power distribution terminal | |
| CN114487680B (en) | A method and system for testing misconnection of neutral and ground wires | |
| CN113361607B (en) | Medium-voltage distribution network line problem analysis method and device | |
| CN114935733B (en) | Fault detection method and device for optical coupling switch in battery detection system | |
| CN116342093B (en) | Power inspection method based on fault reliability analysis | |
| CN109599827A (en) | Power network neutral point dynamic earth fault method and system based on big data | |
| CN119556121A (en) | A method and system for identifying failure mode of hybrid DC circuit breaker | |
| CN116862153A (en) | Operation time analysis method for on-load replacement pole switch | |
| CN109615266B (en) | Text analysis decision method for power grid abnormal information based on data mining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |