CN104133148B - Study and judgment method for power failure of distribution network - Google Patents
Study and judgment method for power failure of distribution network Download PDFInfo
- Publication number
- CN104133148B CN104133148B CN201410412108.1A CN201410412108A CN104133148B CN 104133148 B CN104133148 B CN 104133148B CN 201410412108 A CN201410412108 A CN 201410412108A CN 104133148 B CN104133148 B CN 104133148B
- Authority
- CN
- China
- Prior art keywords
- user
- repairment
- report
- transformator
- meter
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004458 analytical method Methods 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims 1
- 238000003745 diagnosis Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 description 2
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a study and judgment method for the power failure of a distribution network. According to the study and judgment method, with a power grid topological structure as the basis and repair request information as the assistance, a possible failure source is located in real time through a power grid equipment topological structure model according to a practical distribution network real-time failure locating method based on the repair request information, wherein the power grid equipment topological structure model is obtained through analysis of a universal information model. By analyzing the operating status of power supply equipment at a repair request point, rapid diagnosis of the equipment failure is achieved. By means of the study and judgment method, it is not needed to spend great energy in building an expert knowledge base, and diagnosis is rapid and effective. The method is high in university and flexible, and can adapt to a new power grid equipment topological structure model quickly when the structure and protection configuration of an electric system change.
Description
Technical field
The invention belongs to electric power network technical field, more particularly to a kind of analysis method of distribution power failure.
Background technology
The method of Fault Diagnosis of Distribution Network mainly has based on the method for optimization, Artificial Neural Network, expert system at present
The method of system.Typical case application of the specialist system in power transmission network fault diagnosis is the system based on generation rule.Although at present specially
Family's system application it is more successful, but still suffer from many defects in actual applications：
1 power system is individual huge and the system of complexity, wants the complete knowledge base of acquisition relatively difficult；
2 in the case where there is a large amount of fault messages, and specialist system will search for rule certain in matching knowledge base in reasoning
Can just reach a conclusion after then collecting, therefore speed is very slow in reasoning；
3 when NETWORK STRUCTURE PRESERVING POWER SYSTEM and relaying configuration change, and the maintenance of knowledge base is extremely difficult.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of analysis method of distribution power failure, it is intended to solve existing electrical network
The low problem of the complex operation of method for diagnosing faults presence, difficult in maintenance and efficiency.
The embodiment of the present invention is achieved in that the method that the distribution power failure is studied and judged is comprised the following steps：
Step one, the grid equipment topological model obtained by Common Information Model analysis obtain the power supply transformation reported for repairment a little
Device information, including transformator title and transformator unique encodings；
Step 2, analysis general information topological model, the scope that acquisition current planning has a power failure, including power failure equipments title,
The information such as equipment unique encodings；
Whether step 3, judge the transformator of step 2 comprising the transformator obtained in step one, comprising as step 2
In certain transformator it is consistent with the transformator unique encodings obtained in step one；It is incorporated into step 4；Not comprising entering step 5；
Step 4, current power failure is to be affected by known scheduled outage, is terminated；
Step 5, analyzes general information topological model, obtains the scope of currently known fault outage, including power failure equipments name
The information such as title, equipment unique encodings；
Whether step 6, judge the transformator of step 5 comprising the transformator obtained in step one, comprising as step 5
In certain transformator it is consistent with the transformator unique encodings obtained in step one；It is incorporated into step 7；Not comprising entering step 8；
Step 7, current power failure is to be affected by known fault power failure, is terminated；
Step 8, analyzes general information topological model, and acquisition is reported the meter of user for repairment and reports table of the user with group user for repairment
Meter, and report user for repairment and face the meter of group user, report the meter of customer power supply transformator for repairment.
Step 9, analyze general information topological model, obtain currently with report user for repairment with group or the institute with supply transformer
Faulty power failure；
Step 10, calls the meter surveyed in step 8 successively together and judges the fault outage in its whether powered and statistic procedure nine；
Report for repairment in step 8 user meter it is powered or report for repairment the meter of user it is not charged but with group user meter it is powered, enter
Step 11；Report user and not charged but face a group use with user is reported for repairment with the meter of group user with user is reported for repairment in step 8 for repairment
The meter at family is powered, or has a plurality of fault outage in step 9 and report user for repairment and belong to same transformator and same group, into step
12；Report user in step 8 for repairment and report for repairment user with group and with report for repairment user face group user meter it is not charged, but power
The meter of transformator is powered, or have a plurality of fault outage in step 9 with report user for repairment and belong to same transformator but be not belonging to it is same
Group, into step 13；Report user in step 8 for repairment and report user for repairment and organize user and report user for repairment together and face group user and report for repairment
The meter of customer power supply transformator is not charged, or has a plurality of fault outage in step 9 and report user for repairment and belong to same transformator
But same group is not belonging to, into step 14；
Step 11, current power failure may be to report user's single household power-off fault for repairment, terminate；
Step 12, current power failure may be to report the affiliated electricity box of user or user's collection power-off fault for repairment, terminate；
Step 13, current power failure may be to report the affiliated feeder pillar power-off fault of user for repairment, terminate；
Step 14, current power failure may be to report the affiliated transformator power-off fault of user for repairment, terminate；
The method that the distribution power failure that the present invention is provided is studied and judged, the grid equipment obtained using Common Information Model analysis
Topology controlment, analyzes troublshooting point power supply unit equipment running status, realizes the quick diagnosis of equipment fault.
The present invention compared with the conventional method, has the following advantages that：
1st, substantial amounts of experience need not be spent to set up expert knowledge library；
2nd, diagnose quick effective；
3rd, highly versatile, it is versatile and flexible, when NETWORK STRUCTURE PRESERVING POWER SYSTEM and relaying configuration change, new electrical network can be adapted to soon
Device topology model.
Description of the drawings
Fig. 1 is the analysis method flow chart of the present invention；
Fig. 2 is the analysis method flow chart provided by the embodiment of the present invention 1.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
Below in conjunction with the accompanying drawings and specific embodiment to the present invention application principle be further described.
As shown in figure 1, the method that the distribution power failure of the embodiment of the present invention is studied and judged is comprised the following steps：
S101：The grid equipment topological model obtained by Common Information Model analysis obtains the supply transformer for reporting for repairment a little
Information, including transformator title and transformator unique encodings；
S102：Analysis general information topological model, obtains the scope that current planning has a power failure, including power failure equipments title, sets
The information such as standby unique encodings；
S103：Judge the equipment of S102 whether comprising the equipment obtained in S101, comprising certain transformator in as S102 with
The transformator unique encodings obtained in S101 are consistent；It is incorporated into S104；Not comprising entering S105；
S104：Current power failure is to be affected by known scheduled outage, is terminated；
S105：Analysis general information topological model, obtains the scope of currently known fault outage, including power failure equipments name
The information such as title, equipment unique encodings；
S106：Judge the equipment of S105 whether comprising the equipment obtained in S101, comprising certain transformator in as S105 with
The transformator unique encodings obtained in S101 are consistent；It is incorporated into S107；Not comprising entering S108；
S107：Current power failure is to be affected by known fault power failure, is terminated；
S108, analyzes general information topological model, and acquisition is reported the meter of user for repairment and reports table of the user with group user for repairment
Meter, and report user for repairment and face the meter of group user, report the meter of customer power supply transformator for repairment.
S109, analyzes general information topological model, obtain currently with report user for repairment with group or with all of supply transformer
Fault outage；
S110, calls the meter surveyed in S108 successively together and judges whether which is powered and count the fault outage in S109；In S108
Report for repairment user meter it is powered or report for repairment the meter of user it is not charged but with group user meter it is powered, into S111；
Report for repairment in S108 user and with report for repairment user with group user meter it is not charged but with the meter band for reporting user for repairment and facing group user
There is a plurality of fault outage in electricity, or S109 and report user for repairment and belong to same transformator and same group, into S112；Report use in S108 for repairment
Family and report for repairment user with group and with report for repairment user face group user meter it is not charged, but the meter of supply transformer is powered, or
There is a plurality of fault outage in person S109 and report user for repairment and belong to same transformator but be not belonging to same group, into S113；Report for repairment in S108
User and report for repairment user with organize user and report for repairment user face group user and report for repairment customer power supply transformator meter it is not charged,
Or have a plurality of fault outage in S109 and report user for repairment and belong to same transformator but be not belonging to same group, into S114；
S111, current power failure may be to report user's single household power-off fault for repairment, terminate；
S112, current power failure may be to report the affiliated electricity box of user or user's collection power-off fault for repairment, terminate；
S113, current power failure may be to report the affiliated feeder pillar power-off fault of user for repairment, terminate；
S114, current power failure may be to report the affiliated transformator power-off fault of user for repairment, terminate；
The specific embodiment of the present invention：
Embodiment 1：
Step one, determines troublshooting point；
Step 2, the grid equipment topological model obtained by Common Information Model analysis obtain the power supply transformation reported for repairment a little
Device；
Step 3, analysis general information topological model, the scope that acquisition current planning has a power failure, including power failure equipments title,
The information such as equipment unique encodings；
Step 4, judges the equipment of step 3 whether comprising the equipment obtained in step 2, comprising in as step 3 certain
Transformator is consistent with the transformator unique encodings obtained in step 2；It is incorporated into step 5；Not comprising entering step 6；
Step 5, current power failure is to be affected by known scheduled outage, goes to step 16, program determination；
Step 6, analyzes general information topological model, obtains the scope of currently known fault outage, including power failure equipments name
The information such as title, equipment unique encodings；
Step 7, judges the equipment of step 6 whether comprising the equipment obtained in step 2, comprising in as step 6 certain
Transformator is consistent with the transformator unique encodings obtained in step 2；It is incorporated into step 8；Not comprising entering step 9；
Step 8, current power failure is to be affected by known fault power failure, goes to step 16, program determination；
Step 9, analyzes general information topological model, and acquisition is reported the meter of user for repairment and reports table of the user with group user for repairment
Meter, and report user for repairment and face the meter of group user, report the meter of customer power supply transformator for repairment.
Step 10, analyze general information topological model, obtain currently with report user for repairment with group or the institute with supply transformer
Faulty power failure；
Step 11, calls the meter surveyed in step 9 successively together and judges that the failure in its whether powered and statistic procedure ten is stopped
Electricity；Report for repairment in step 9 user meter it is powered or report for repairment the meter of user it is not charged but with group user meter it is powered,
Into step 12；Report user and not charged but face with user is reported for repairment with the meter of group user with user is reported for repairment in step 9 for repairment
The meter of group user is powered, or has a plurality of fault outage in step 10 and report user for repairment and belong to same transformator and same group, enters
Step 13；Report user in step 9 for repairment and report for repairment user with group and with report for repairment user face group user meter it is not charged, but
The meter of supply transformer is powered, or has a plurality of fault outage in step 10 and report user for repairment and belong to same transformator but be not belonging to
Same group, into step 14；Report user in step 9 for repairment and report user for repairment and organize user and report user for repairment together and face group user and report
The meter for repairing customer power supply transformator is not charged, or has a plurality of fault outage in step 10 and report user for repairment and belong to same transformation
Device but same group is not belonging to, into step 15；
Step 12, current power failure may be to report user's single household power-off fault for repairment, go to step 16, program determination；
Step 13, current power failure may be to report the affiliated electricity box of user or user's collection power-off fault for repairment, go to step 16,
Program determination；
Step 14, current power failure may be to report the affiliated feeder pillar power-off fault of user for repairment, go to step 16, program end
Only；
Step 15, current power failure may be to report the affiliated transformator power-off fault of user for repairment, go to step 16, program end
Only；
Step 10 six, program determination.
The distribution power fault detection new method of the present invention need not spend substantial amounts of experience to set up expert knowledge library；Diagnosis
It is quick effective；Highly versatile, it is versatile and flexible, when NETWORK STRUCTURE PRESERVING POWER SYSTEM and relaying configuration change, new electricity can be rapidly adapted to
Net device topology model.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage
Solution：Without departing from the present invention and spirit and scope of the appended claims in, various replacements, change and modifications all be it is possible,
Therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (1)
1. a kind of analysis method of distribution power failure, it is characterised in that the method that the distribution power failure is studied and judged includes following
Step：
Step one, the grid equipment topological model obtained by the analysis of general information topological model obtain the power supply transformation reported for repairment a little
Device information, including transformator title and transformator unique encodings；
Step 2, analyzes general information topological model, obtains the scope that current planning has a power failure, including power failure equipments title, equipment
Unique encodings information；
Step 3, judges the transformator of step 2 whether comprising the transformator obtained in step one, comprising in as step 2 certain
Transformator is consistent with the transformator unique encodings obtained in step one；It is incorporated into step 4；Not comprising entering step 5；
Step 4, current power failure is to be affected by known scheduled outage, is terminated；
Step 5, analysis general information topological model, the scope of the currently known fault outage of acquisition, including power failure equipments title,
Equipment unique encodings information；
Step 6, judges the transformator of step 5 whether comprising the transformator obtained in step one, comprising in as step 5 certain
Transformator is consistent with the transformator unique encodings obtained in step one；It is incorporated into step 7；Not comprising entering step 8；
Step 7, current power failure is to be affected by known fault power failure, is terminated；
Step 8, analyze general information topological model, acquisition report for repairment user meter and report for repairment user with group user meter,
Face the meter of group user, report the meter of customer power supply transformator for repairment with user is reported for repairment；
Step 9, analyzes general information topological model, obtain currently with report user for repairment with group or with supply transformer all therefore
Barrier has a power failure；
Step 10, calls the meter surveyed in step 8 successively together and judges the fault outage in its whether powered and statistic procedure nine；Step
Report for repairment in eight user meter it is powered or report for repairment the meter of user it is not charged but with group user meter it is powered, into step
11；Report user and not charged but face group user's with user is reported for repairment with the meter of group user with user is reported for repairment in step 8 for repairment
Meter is powered, or has a plurality of fault outage in step 9 and report user for repairment and belong to same transformator and same group, into step 12；
Report user in step 8 for repairment and report for repairment user with group and with report for repairment user face group user meter it is not charged, but power transformation
The meter of device is powered, or has a plurality of fault outage in step 9 and report user for repairment and belong to same transformator but be not belonging to same group, enters
Enter step 13；Report user in step 8 for repairment and report user for repairment and organize user together and report user for repairment and face group user and report user's confession for repairment
The meter of piezoelectric transformer is not charged, or has a plurality of fault outage in step 9 and report user for repairment and belong to same transformator but do not belong to
In same group, into step 14；
Step 11, current power failure may be to report user's single household power-off fault for repairment, terminate；
Step 12, current power failure may be to report the affiliated electricity box of user or user's collection power-off fault for repairment, terminate；
Step 13, current power failure may be to report the affiliated feeder pillar power-off fault of user for repairment, terminate；
Step 14, current power failure may be to report the affiliated transformator power-off fault of user for repairment, terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412108.1A CN104133148B (en) | 2014-08-20 | 2014-08-20 | Study and judgment method for power failure of distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410412108.1A CN104133148B (en) | 2014-08-20 | 2014-08-20 | Study and judgment method for power failure of distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104133148A CN104133148A (en) | 2014-11-05 |
| CN104133148B true CN104133148B (en) | 2017-05-10 |
Family
ID=51805895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410412108.1A Active CN104133148B (en) | 2014-08-20 | 2014-08-20 | Study and judgment method for power failure of distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104133148B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196366A (en) * | 2019-06-04 | 2019-09-03 | 鼎信信息科技有限责任公司 | Route stops send a telegram in reply state identification method, device, computer equipment and storage medium |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104678258B (en) * | 2015-02-27 | 2017-08-01 | 国家电网公司 | It is a kind of specially to become the method that information to distribution network failure actively study and judge based on public |
| CN104655989A (en) * | 2015-03-02 | 2015-05-27 | 国电南瑞科技股份有限公司 | Smart meter collecting function based remote inspection method for power outage fields |
| CN105427039A (en) * | 2015-05-22 | 2016-03-23 | 国网青海省电力公司西宁供电公司 | Efficient processing method of distribution network repair work orders based on responsibility areas |
| CN105158636A (en) * | 2015-07-31 | 2015-12-16 | 国网四川省电力公司 | Automatic faulty background studying and judging method based on marketing and distribution data run-through |
| CN105207121A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Power distribution network fault emergency maintenance method based on topology analysis |
| CN105894172B (en) * | 2015-11-17 | 2021-10-12 | 国家电网公司 | Combined power failure research and judgment method based on marketing and distribution fusion |
| CN109146708B (en) * | 2018-08-30 | 2021-08-10 | 邢永 | Emergency repair method and device for power supply repair report |
| CN110018379B (en) * | 2019-05-13 | 2021-01-26 | 国网河北省电力有限公司石家庄供电分公司 | Switching station fault studying and judging method |
| CN110018378B (en) * | 2019-05-13 | 2021-01-08 | 国网河北省电力有限公司石家庄供电分公司 | Fault studying and judging method for distributing different transformers of same overhead line by multiple repair work orders |
| CN110635477B (en) * | 2019-09-30 | 2023-05-09 | 国网宁夏电力有限公司 | Multi-system fusion-based distribution network fault studying and judging method, device and system |
| CN113625082A (en) * | 2021-08-06 | 2021-11-09 | 国网宁夏电力有限公司 | Power distribution network equipment fault studying and judging method based on machine learning algorithm model |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1030185A2 (en) * | 1999-02-15 | 2000-08-23 | Isabellenhütte Heusler GmbH KG | Process and means for monitoring the current in a power distribution network |
| CN102565572A (en) * | 2011-12-04 | 2012-07-11 | 江苏省电力公司南京供电公司 | Platform and method for judging fault of match power grid |
| CN102608497A (en) * | 2012-03-16 | 2012-07-25 | 山西省电力公司太原供电分公司 | Power failure diagnosis method and device |
| CN103543383A (en) * | 2013-08-07 | 2014-01-29 | 国家电网公司 | Method for locating faults of power distribution network on basis of complaint telephone and protection information |
| CN103901317A (en) * | 2012-12-24 | 2014-07-02 | 天津市电力公司 | Power distribution fault studying and judging method based on multisystem collaboration |
| CN103915827A (en) * | 2014-03-14 | 2014-07-09 | 国网山东省电力公司青岛供电公司 | Power distribution network fault studying and judging method and system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1751562A1 (en) * | 2004-06-04 | 2007-02-14 | FMC Tech Limited | A method of monitoring line faults in a medium voltage network |
-
2014
- 2014-08-20 CN CN201410412108.1A patent/CN104133148B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1030185A2 (en) * | 1999-02-15 | 2000-08-23 | Isabellenhütte Heusler GmbH KG | Process and means for monitoring the current in a power distribution network |
| CN102565572A (en) * | 2011-12-04 | 2012-07-11 | 江苏省电力公司南京供电公司 | Platform and method for judging fault of match power grid |
| CN102608497A (en) * | 2012-03-16 | 2012-07-25 | 山西省电力公司太原供电分公司 | Power failure diagnosis method and device |
| CN103901317A (en) * | 2012-12-24 | 2014-07-02 | 天津市电力公司 | Power distribution fault studying and judging method based on multisystem collaboration |
| CN103543383A (en) * | 2013-08-07 | 2014-01-29 | 国家电网公司 | Method for locating faults of power distribution network on basis of complaint telephone and protection information |
| CN103915827A (en) * | 2014-03-14 | 2014-07-09 | 国网山东省电力公司青岛供电公司 | Power distribution network fault studying and judging method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196366A (en) * | 2019-06-04 | 2019-09-03 | 鼎信信息科技有限责任公司 | Route stops send a telegram in reply state identification method, device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104133148A (en) | 2014-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104133148B (en) | Study and judgment method for power failure of distribution network | |
| CN103679556B (en) | The intelligent diagnosing method of distribution transformer terminals power failure alarm | |
| CN103499753B (en) | Intelligent system for rapidly identifying transient fault of high-voltage direct-current power transmission system | |
| CN107180314B (en) | Operation and maintenance business model modeling method based on primary and secondary system incidence relation | |
| CN107167704B (en) | Power distribution network fault diagnosis system and method based on CIM model | |
| CN102354918A (en) | Method and device for maintaining power transmission and transformation equipment | |
| CN105894172A (en) | Joint outage judging method based on marketing and distribution fusion | |
| CN103487749A (en) | On-line monitoring and diagnosing system and method for mechanical state of high-voltage circuit breaker | |
| CN104751305A (en) | Trouble analysis and repair-based intelligent interaction system and control method thereof | |
| CN102521478B (en) | Power network topology dynamic coloring algorithm | |
| CN202886956U (en) | Power-generator performance monitoring system based on similarity principle | |
| CN103926891B (en) | Mobile Telecommunication Equipment Room environment in mobile stations equipment monitoring system and method | |
| CN102608497B (en) | Power failure diagnosis method and device | |
| CN104538957A (en) | Power grid model self-adaptive processing method for counting low-frequency low-voltage load shedding capacity | |
| CN106532719A (en) | Non-intrusive identification method of non-variable frequency air conditioner based on second harmonic wave of current and reactive power | |
| CN105048630A (en) | Intelligent scheduling control system and method based on data automatic analysis system | |
| CN104091290A (en) | Intelligent substation monitoring information diagnosing and analyzing method | |
| CN102930408B (en) | A kind of 750kV electric grid secondary equipment state appraisal procedure based on information fusion | |
| CN106530653B (en) | Power information acquisition method | |
| CN105867267A (en) | Method for automatically reporting instrument readings of distribution station room through image identification technology | |
| CN104155581A (en) | Distribution network power fault judgment method | |
| CN104200392A (en) | Automatic prediction and evaluation method for power distribution reliability index of power distribution network | |
| CN103454487A (en) | Internal overvoltage early warning system of power distribution network | |
| CN106026403A (en) | Intelligent monitoring and managing system for photovoltaic power station | |
| CN104655989A (en) | Smart meter collecting function based remote inspection method for power outage fields |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Applicant after: NARI Technology Development Co., Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company Applicant before: NARI Technology Development Co., Ltd. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |