CN107505537A - A kind of failure analysis methods abnormal based on line loss - Google Patents
A kind of failure analysis methods abnormal based on line loss Download PDFInfo
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- CN107505537A CN107505537A CN201710788025.6A CN201710788025A CN107505537A CN 107505537 A CN107505537 A CN 107505537A CN 201710788025 A CN201710788025 A CN 201710788025A CN 107505537 A CN107505537 A CN 107505537A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
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Abstract
The invention discloses a kind of failure analysis methods abnormal based on line loss, and it is that taiwan area line loss exception or feeder line line loss are abnormal that it, which includes step 1, determines line loss,；Step 2, it is that taiwan area line loss is abnormal then according to change, family hierarchical relationship structure, carries out the abnormal fault location of taiwan area line loss；Step 3, it is that feeder line line loss is abnormal then according to station, line, change level relational structure, plant stand electric energy meter, distribution transformer terminals and negative control terminal, passage and Internet of Things card is successively investigated, carry out the positioning of feeder line line loss abnormal failure；Solve prior art to investigate summary table successively by manual site in line loss exception, divide can whether table, terminal device, channel unit be online, gather to determine failure cause, this working method searched for a needle in a haystack is time-consuming, effort, efficiency is low, failture evacuation not in time, the technical problem such as malfunction elimination inaccuracy.
Description
Technical field
The invention belongs to operation of power networks technology, more particularly to a kind of failure analysis methods abnormal based on line loss.
Background technology：
Provincial Power Grid Corporation has been set up metering automation system in office of prefectures and cities at present, realizes plant stand, negative control, matches somebody with somebody
Become, the remote data acquisition of low-voltage collecting meter reading, and establish such as coverage rate, online rate, the collection multiple performance assessment criteria of percentage of head rice.From
The continuous covering of dynamicization equipment, the foundation of numerous indexs contribute to electric network synthetic to assess the comprehensive with accurate of electric energy data, but
It is due to that measuring equipment distribution is wide, quantity is more, regional differences are big, prior art is automatic according to metering under line loss abnormal conditions
Change operation management system and method using the pattern for sending employee to go to scene to investigate, employee reaches the spot to pass through according to the work of oneself
Test and reference《China Nanfang Grid Co., Ltd's electric power meter operational management method》Successively investigate summary table, divide table,
Can whether terminal device, channel unit be online, gather to determine failure cause, this working method searched for a needle in a haystack is time-consuming,
Effort, efficiency is low, failture evacuation not in time, malfunction elimination it is inaccurate, cause metering automation system acquisition data to fail to play
The effect of its real Instructing manufacture.
The content of the invention：
The technical problem to be solved in the present invention：A kind of failure analysis methods abnormal based on line loss are provided, to solve prior art
Summary table is investigated by manual site successively in line loss exception, divides can whether table, terminal device, channel unit be online, gather
To determine failure cause, this working method searched for a needle in a haystack is time-consuming, effort, efficiency is low, failture evacuation not in time, malfunction elimination
The technical problems such as inaccuracy.
Technical solution of the present invention：
A kind of failure analysis methods abnormal based on line loss, it includes：
Step 1, determine that line loss is that taiwan area line loss exception or feeder line line loss are abnormal；
Step 2, it is that taiwan area line loss is abnormal then according to change, family hierarchical relationship structure, it is whole according to application metering automation system distribution transforming
Hold online rate, low-voltage collecting meter reading data acquisition percentage of head rice and three indexs of the online rate of concentrator and electric energy meter and terminal electric flux number
According to successively being arranged taiwan area distribution transformer terminals, user's meter, collector, concentrator, common carrier passage and Internet of Things card
Look into, carry out the abnormal fault location of taiwan area line loss；
Step 3, it is that feeder line line loss is abnormal then according to station, line, change level relational structure, according to using metering automation system plant stand
Whether the online rate of terminal, the online rate of distribution transformer terminals and three indexs of the online rate of mutual control terminal and electric energy meter, terminal electric energy data
Increase is used as basis for estimation, and plant stand electric energy meter, distribution transformer terminals and negative control terminal, passage and Internet of Things card are successively investigated,
Carry out the positioning of feeder line line loss abnormal failure.
Alignment damage is that taiwan area line loss exception or feeder line line loss are abnormal really described in step 1, and determination methods are：If parameter is
Plant stand Source of Gateway Meter delivery and taiwan area electricity sales amount, line loss=（Transformer station's outlet Source of Gateway Meter-taiwan area stoichiometric point electricity summation）/ power transformation
Stand outlet Source of Gateway Meter, when line loss is more than 1.5 times of theory wire loss, system is then judged as YES feeder line line loss exception；If parameter
It is taiwan area delivery and user power utilization amount, line loss=（Taiwan area stoichiometric point electricity-low-voltage customer meter electricity summation）/ taiwan area is measured
Point electricity, when line loss is more than 1.5 times of theory wire loss, system is then determined as taiwan area line loss exception.
The Fault Locating Method of taiwan area line loss exception described in step 2 includes：
If step 2.1, electric energy meter and terminal data are complete, whether table code is less than only table code from electric energy meter and terminal
Start the accuracy of inspection electric energy meter data, if playing table code is less than only table code, be determined as meter failure；
Step 2.2, the reasonability on the contrary that electric energy meter and terminal data are then judged with Pauta criterion, data are rationally then determined as platform
Area becomes, family hierarchical relationship textural anomaly and drain conditions be present；Data are unreasonable, then are determined as meter failure；
If step 2.3, electric energy meter and terminal data are imperfect, low-voltage collecting meter reading data acquisition percentage of head rice, distribution transforming from taiwan area
Whether three indexs of the online rate of terminal and the online rate of concentrator are 0 to be used as decision condition, if these three indexs are 0, are judged
For operator's channel failure；If the online rate of concentrator and the online rate of distribution transformer terminals are not 0, it is determined as concentrator or Internet of Things network interface card
Failure；If low-voltage collecting meter reading data acquisition percentage of head rice is not 0, judge whether low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, if
Low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, then is determined as the meter failure of shortage of data；It is on the contrary then be determined as collector therefore
Barrier.
The method of feeder line line loss abnormal failure positioning is carried out described in step 3 to be included：
Whether step 3.1, the electric energy meter under statistics feeder line and all terminal datas are complete；
Step 3.2, electric energy meter and terminal data are complete, then whether table code is less than only table code since electric energy meter and terminal
Check the accuracy of electric energy meter data；
If step 3.3, playing table code less than only table code, the type of terminal is inquired about, if distribution transformer terminals, is then determined as distribution transformer terminals
Failure；If mutual control terminal, then inquire about whether cross complaint terminal power is 0, if electricity is not 0, be determined as mutual control terminal or table
Count failure；If electricity is 0, the electricity of meter is adopted in the friendship of the mutual control terminal of inquiry collection, if it is 0 that meter electricity is adopted in friendship, this is mutual
Control terminal is normal, and flow terminates；
If step 3.4, judging to hand over that to adopt meter electricity be not 0, it is determined as mutual control terminal or meter failure, otherwise a table code is more than
Only during table code, then the reasonability of electric energy meter and terminal data is judged with Pauta criterion, when data are reasonable, are determined as that circuit becomes and return
Line hierarchical relationship textural anomaly and meter multiplying power abnormal conditions be present；Data are unreasonable, are determined as meter failure；
If step 3.5, transformer station's outlet Source of Gateway Meter or terminal data are imperfect, transformer station's outlet Source of Gateway Meter data are first looked at
Whether lack, if data do not lack, flow terminates；
If step 3.6, transformer station's outlet Source of Gateway Meter Data Data missing, count the meter of the same terminal of access in transformer station
Whether gathered data, if data are complete, transformer station outlet Source of Gateway Meter is abnormal；If shortage of data, the plant stand terminal is inquired about
Whether T-2 days online, if plant stand terminal is online, is determined as plant stand terminal abnormal, if plant stand terminal is not online, inquires about factory again
Whether terminal of standing is current online, if plant stand terminal is online, calls together and surveys the plant stand terminal data of T-2 days, surveyed successfully if data are called together,
Flow terminates, if data call together survey it is unsuccessful, be determined as plant stand terminal fault；As plant stand terminal is not currently in line, then it is determined as
Channel failure；
Step 3.7, check whether mutual control terminal and distribution transformer terminals data lack, if data are complete, flow terminates, otherwise data
Missing, then count the mutual online situation of control terminal and distribution transformer terminals, if distribution transformer terminals are online, be determined as distribution transformer terminals failure；If
Mutual control terminal is online, then inquire about mutual control terminal whether gathered data, if data are complete, be determined as meter failure；If data
Missing, then be determined as cross complaint terminal fault；When distribution transformer terminals are not online, then the online situation of concentrator under taiwan area is counted, if concentrating
Device is online, then is determined as distribution transformer terminals or card failure；If concentrator is not online, it is online to inquire about same operator's distribution transformer terminals
Rate, if the online rate of distribution transformer terminals is 0, it is determined as operator's channel failure；If the online rate of distribution transformer terminals is not 0, it is determined as
Distribution transformer terminals or Internet of Things net card failure.If mutually control terminal is not online, the online rate of the mutual control terminal of same operator is directly inquired about,
If the online rate of mutual control terminal is 0, it is determined as operator's channel failure；If the online rate of mutual control terminal is not 0, it is determined as cross complaint
Terminal or Internet of Things net card failure.
Beneficial effects of the present invention：
The present invention is to stand, line, change, family hierarchical relationship structure, plant stand, taiwan area and user correspond to Source of Gateway Meter, TTU, it is negative control, table
Meter, collector, concentrator, passage, common carrier equipment are successively investigated, and with terminal, whether concentrator online, collector
Whether collection is successful, whether meter table code registration increases, common carrier same type equipment on-line rate is as basis for estimation, essence
Trouble point really is found out, prior art is solved and investigates summary table successively by manual site in line loss exception, divides table, terminal to set
Can whether standby, channel unit be online, gather to determine failure cause, and this working method searched for a needle in a haystack is time-consuming, effort, effect
Rate is low, failture evacuation not in time, the technical problem such as malfunction elimination inaccuracy.
Brief description of the drawings：
Fig. 1 is the line loss Exception Type analysis process figure of the present invention；
Fig. 2 is the taiwan area line loss anomaly analysis flow chart of the present invention；
Fig. 3 is the feeder line line loss anomaly analysis flow chart of the present invention.
Embodiment：
The confirmation of line loss type, as shown in figure 1, according to《CHINA SOUTHERN POWER company line loss four divides administrative standard》, to administering electricity
Net takes the integrated management mode including the Controlling line loss of subregion, partial pressure, separated time and point taiwan area.It is abnormal for line loss, this
Invention only needs to confirm that four are in charge of reason middle separated time, point taiwan area.According to each major parameter information of line loss calculation and the calculating of application
Formula, if parameter is plant stand Source of Gateway Meter delivery and taiwan area electricity sales amount, line loss=（Transformer station's outlet Source of Gateway Meter-taiwan area stoichiometric point
Electricity summation）/ transformer station outlet Source of Gateway Meter, when line loss is more than 1.5 times of theory wire loss, system is then judged as YES feeder line line loss
It is abnormal；If parameter is taiwan area delivery and user power utilization amount, line loss=（Taiwan area stoichiometric point electricity-low-voltage customer meter electricity is total
With）/ taiwan area stoichiometric point electricity, when line loss is more than 1.5 times of theory wire loss, system is then determined as taiwan area line loss exception.
Taiwan area line loss anomaly analysis,
The Fault Locating Method of taiwan area line loss exception described in step 2 includes：
If step 2.1, electric energy meter and terminal data are complete, whether table code is less than only table code from electric energy meter and terminal
Start the accuracy of inspection electric energy meter data, if playing table code is less than only table code, be determined as meter failure；
Step 2.2, the reasonability on the contrary that electric energy meter and terminal data are then judged with Pauta criterion, data are rationally then determined as platform
Area becomes, family hierarchical relationship textural anomaly and drain conditions be present；Data are unreasonable, then are determined as meter failure；
If step 2.3, electric energy meter and terminal data are imperfect, low-voltage collecting meter reading data acquisition percentage of head rice, distribution transforming from taiwan area
Whether three indexs of the online rate of terminal and the online rate of concentrator are 0 to be used as decision condition, if these three indexs are 0, are judged
For operator's channel failure；If the online rate of concentrator and the online rate of distribution transformer terminals are not 0, it is determined as concentrator or Internet of Things network interface card
Failure；If low-voltage collecting meter reading data acquisition percentage of head rice is not 0, judge whether low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, if
Low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, then is determined as the meter failure of shortage of data；It is on the contrary then be determined as collector therefore
Barrier.
Feeder line line loss anomaly analysis：
Step 3, it is that feeder line line loss is abnormal then according to station, line, change level relational structure, according to using metering automation system plant stand
Whether the online rate of terminal, the online rate of distribution transformer terminals and three indexs of the online rate of mutual control terminal and electric energy meter, terminal electric energy data
Increase is used as basis for estimation, and plant stand electric energy meter, distribution transformer terminals and negative control terminal, passage and Internet of Things card are successively investigated,
Carry out the positioning of feeder line line loss abnormal failure.
The method of feeder line line loss abnormal failure positioning is carried out described in step 3 to be included：
Whether step 3.1, the electric energy meter under statistics feeder line and all terminal datas are complete；
Step 3.2, electric energy meter and terminal data are complete, then whether table code is less than only table code since electric energy meter and terminal
Check the accuracy of electric energy meter data；
If step 3.3, playing table code less than only table code, the type of terminal is inquired about, if distribution transformer terminals, is then determined as distribution transformer terminals
Failure；If mutual control terminal, then inquire about whether cross complaint terminal power is 0, if electricity is not 0, be determined as mutual control terminal or table
Count failure；If electricity is 0, the electricity of meter is adopted in the friendship of the mutual control terminal of inquiry collection, if it is 0 that meter electricity is adopted in friendship, this is mutual
Control terminal is normal, and flow terminates；
If step 3.4, judging to hand over that to adopt meter electricity be not 0, it is determined as mutual control terminal or meter failure, otherwise a table code is more than
Only during table code, then the reasonability of electric energy meter and terminal data is judged with Pauta criterion, when data are reasonable, are determined as that circuit becomes and return
Line hierarchical relationship textural anomaly and meter multiplying power abnormal conditions be present；Data are unreasonable, are determined as meter failure；
If step 3.5, transformer station's outlet Source of Gateway Meter or terminal data are imperfect, transformer station's outlet Source of Gateway Meter data are first looked at
Whether lack, if data do not lack, flow terminates；
If step 3.6, transformer station's outlet Source of Gateway Meter Data Data missing, count the meter of the same terminal of access in transformer station
Whether gathered data, if data are complete, transformer station outlet Source of Gateway Meter is abnormal；If shortage of data, the plant stand terminal is inquired about
Whether T-2 days online, if plant stand terminal is online, is determined as plant stand terminal abnormal, if plant stand terminal is not online, inquires about factory again
Whether terminal of standing is current online, if plant stand terminal is online, calls together and surveys the plant stand terminal data of T-2 days, surveyed successfully if data are called together,
Flow terminates, if data call together survey it is unsuccessful, be determined as plant stand terminal fault；As plant stand terminal is not currently in line, then it is determined as
Channel failure；T represents the date, as T represents September in 2017 1, then T-2 represents August in 2017 30.
Step 3.7, check whether mutual control terminal and distribution transformer terminals data lack, if data are complete, flow terminates, on the contrary
Shortage of data, then the mutual online situation of control terminal and distribution transformer terminals is counted, if distribution transformer terminals are online, be determined as distribution transformer terminals event
Barrier；If mutually control terminal it is online, inquire about mutual control terminal whether gathered data, if data are complete, be determined as meter failure；If
Shortage of data, then it is determined as cross complaint terminal fault；When distribution transformer terminals are not online, then the online situation of concentrator under taiwan area is counted, if
Concentrator is online, then is determined as distribution transformer terminals or card failure；If concentrator is not online, inquires about same operator's distribution transformer terminals and exist
Line rate, if the online rate of distribution transformer terminals is 0, it is determined as operator's channel failure；If the online rate of distribution transformer terminals is not 0, judge
For distribution transformer terminals or Internet of Things net card failure.If mutually control terminal is not online, it is online directly to inquire about the mutual control terminal of same operator
Rate, if mutually the online rate of control terminal is 0, it is determined as operator's channel failure；If the online rate of mutual control terminal is not 0, it is determined as
Mutual control terminal or Internet of Things net card failure.
Claims (4)
1. a kind of failure analysis methods abnormal based on line loss, it includes：
Step 1, determine that line loss is that taiwan area line loss exception or feeder line line loss are abnormal；
Step 2, it is that taiwan area line loss is abnormal then according to change, family hierarchical relationship structure, it is whole according to application metering automation system distribution transforming
Hold online rate, low-voltage collecting meter reading data acquisition percentage of head rice and three indexs of the online rate of concentrator and electric energy meter and terminal electric flux number
According to successively being arranged taiwan area distribution transformer terminals, user's meter, collector, concentrator, common carrier passage and Internet of Things card
Look into, carry out the abnormal fault location of taiwan area line loss；
Step 3, it is that feeder line line loss is abnormal then according to station, line, change level relational structure, according to using metering automation system plant stand
Whether the online rate of terminal, the online rate of distribution transformer terminals and three indexs of the online rate of mutual control terminal and electric energy meter, terminal electric energy data
Increase is used as basis for estimation, and plant stand electric energy meter, distribution transformer terminals and negative control terminal, passage and Internet of Things card are successively investigated,
Carry out the positioning of feeder line line loss abnormal failure.
A kind of 2. failure analysis methods abnormal based on line loss according to claim 1, it is characterised in that：
Alignment damage is that taiwan area line loss exception or feeder line line loss are abnormal really described in step 1, and determination methods are：If parameter is plant stand
Source of Gateway Meter delivery and taiwan area electricity sales amount, line loss=（Transformer station's outlet Source of Gateway Meter-taiwan area stoichiometric point electricity summation）/ transformer station goes out
Line Source of Gateway Meter, when line loss is more than 1.5 times of theory wire loss, system is then judged as YES feeder line line loss exception；If parameter is platform
Area's delivery and user power utilization amount, line loss=（Taiwan area stoichiometric point electricity-low-voltage customer meter electricity summation）/ taiwan area stoichiometric point electricity
Amount, when line loss is more than 1.5 times of theory wire loss, system is then determined as taiwan area line loss exception.
A kind of 3. failure analysis methods abnormal based on line loss according to claim 1, it is characterised in that：Described in step 2
The abnormal Fault Locating Method of taiwan area line loss include：
If step 2.1, electric energy meter and terminal data are complete, whether table code is less than only table code from electric energy meter and terminal
Start the accuracy of inspection electric energy meter data, if playing table code is less than only table code, be determined as meter failure；
Step 2.2, the reasonability on the contrary that electric energy meter and terminal data are then judged with Pauta criterion, data are rationally then determined as platform
Area becomes, family hierarchical relationship textural anomaly and drain conditions be present；Data are unreasonable, then are determined as meter failure；
If step 2.3, electric energy meter and terminal data are imperfect, low-voltage collecting meter reading data acquisition percentage of head rice, distribution transforming from taiwan area
Whether three indexs of the online rate of terminal and the online rate of concentrator are 0 to be used as decision condition, if these three indexs are 0, are judged
For operator's channel failure；If the online rate of concentrator and the online rate of distribution transformer terminals are not 0, it is determined as concentrator or Internet of Things network interface card
Failure；If low-voltage collecting meter reading data acquisition percentage of head rice is not 0, judge whether low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, if
Low-voltage collecting meter reading data acquisition percentage of head rice is more than 95%, then is determined as the meter failure of shortage of data；It is on the contrary then be determined as collector therefore
Barrier.
A kind of 4. failure analysis methods abnormal based on line loss according to claim 1, it is characterised in that：Described in step 3
Carrying out the method for feeder line line loss abnormal failure positioning includes：
Whether step 3.1, the electric energy meter under statistics feeder line and all terminal datas are complete；
Step 3.2, electric energy meter and terminal data are complete, then whether table code is less than only table code since electric energy meter and terminal
Check the accuracy of electric energy meter data；
If step 3.3, playing table code less than only table code, the type of terminal is inquired about, if distribution transformer terminals, is then determined as distribution transformer terminals
Failure；If mutual control terminal, then inquire about whether cross complaint terminal power is 0, if electricity is not 0, be determined as mutual control terminal or table
Count failure；If electricity is 0, the electricity of meter is adopted in the friendship of the mutual control terminal of inquiry collection, if it is 0 that meter electricity is adopted in friendship, this is mutual
Control terminal is normal, and flow terminates；
If step 3.4, judging to hand over that to adopt meter electricity be not 0, it is determined as mutual control terminal or meter failure, otherwise a table code is more than
Only during table code, then the reasonability of electric energy meter and terminal data is judged with Pauta criterion, when data are reasonable, are determined as that circuit becomes and return
Line hierarchical relationship textural anomaly and meter multiplying power abnormal conditions be present；Data are unreasonable, are determined as meter failure；
If step 3.5, transformer station's outlet Source of Gateway Meter or terminal data are imperfect, transformer station's outlet Source of Gateway Meter data are first looked at
Whether lack, if data do not lack, flow terminates；
If step 3.6, transformer station's outlet Source of Gateway Meter Data Data missing, count the meter of the same terminal of access in transformer station
Whether gathered data, if data are complete, transformer station outlet Source of Gateway Meter is abnormal；If shortage of data, the plant stand terminal is inquired about
Whether T-2 days online, if plant stand terminal is online, is determined as plant stand terminal abnormal, if plant stand terminal is not online, inquires about factory again
Whether terminal of standing is current online, if plant stand terminal is online, calls together and surveys the plant stand terminal data of T-2 days, surveyed successfully if data are called together,
Flow terminates, if data call together survey it is unsuccessful, be determined as plant stand terminal fault；As plant stand terminal is not currently in line, then it is determined as
Channel failure；
Step 3.7, check whether mutual control terminal and distribution transformer terminals data lack, if data are complete, flow terminates, otherwise data
Missing, then count the mutual online situation of control terminal and distribution transformer terminals, if distribution transformer terminals are online, be determined as distribution transformer terminals failure；If
Mutual control terminal is online, then inquire about mutual control terminal whether gathered data, if data are complete, be determined as meter failure；If data
Missing, then be determined as cross complaint terminal fault；When distribution transformer terminals are not online, then the online situation of concentrator under taiwan area is counted, if concentrating
Device is online, then is determined as distribution transformer terminals or card failure；If concentrator is not online, it is online to inquire about same operator's distribution transformer terminals
Rate, if the online rate of distribution transformer terminals is 0, it is determined as operator's channel failure；If the online rate of distribution transformer terminals is not 0, it is determined as
Distribution transformer terminals or Internet of Things net card failure；If mutually control terminal is not online, the online rate of the mutual control terminal of same operator is directly inquired about,
If the online rate of mutual control terminal is 0, it is determined as operator's channel failure；If the online rate of mutual control terminal is not 0, it is determined as cross complaint
Terminal or Internet of Things net card failure.
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| CN109683059A (en) * | 2018-12-30 | 2019-04-26 | 国网北京市电力公司 | Determine method and device, the storage medium, processor of line loss exception |
| CN109919328A (en) * | 2019-01-31 | 2019-06-21 | 国网浙江省电力有限公司 | A kind of low pressure branch line power failure analysis method based on multi-source power-off event |
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| CN110618349A (en) * | 2019-09-26 | 2019-12-27 | 宁波三星医疗电气股份有限公司 | Ammeter line anomaly detection method, power terminal and power grid system |
| CN110837026A (en) * | 2019-11-19 | 2020-02-25 | 深圳供电局有限公司 | Power distribution network fault detection device, system and method |
| CN111598380A (en) * | 2020-04-01 | 2020-08-28 | 国网江西省电力有限公司电力科学研究院 | Distribution line negative loss reason distinguishing method |
| CN111682440A (en) * | 2020-06-17 | 2020-09-18 | 贵州电网有限责任公司 | Digital substation inspection method |
| CN112737106A (en) * | 2020-12-10 | 2021-04-30 | 国网浙江省电力有限公司宁波市北仑区供电公司 | Line loss abnormity subsection control method |
| CN113125875A (en) * | 2020-01-10 | 2021-07-16 | 国网上海市电力公司 | Analysis method for calculating line loss of 35 kilovolt and above and line loss unqualified cause based on SCADA model |
| CN114167219A (en) * | 2021-12-10 | 2022-03-11 | 广东电网有限责任公司 | Fault determination method and system for electric energy acquisition device |
| CN114167200A (en) * | 2021-11-04 | 2022-03-11 | 合肥中能电力科技有限公司 | Intelligent studying and judging algorithm applied to energy management |
| CN114219102A (en) * | 2021-11-08 | 2022-03-22 | 国网河北省电力有限公司营销服务中心 | Operation and maintenance method and device for electric power metering equipment, terminal and storage medium |
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