CN109962527B - Power distribution terminal fault recording system - Google Patents

Power distribution terminal fault recording system Download PDF

Info

Publication number
CN109962527B
CN109962527B CN201910147283.5A CN201910147283A CN109962527B CN 109962527 B CN109962527 B CN 109962527B CN 201910147283 A CN201910147283 A CN 201910147283A CN 109962527 B CN109962527 B CN 109962527B
Authority
CN
China
Prior art keywords
fault
recording
wave recording
power distribution
data acquisition
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
Application number
CN201910147283.5A
Other languages
Chinese (zh)
Other versions
CN109962527A (en
Inventor
李程
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Guocheng Dentsu Technology Co ltd
Original Assignee
Xiamen Guocheng Dentsu Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xiamen Guocheng Dentsu Technology Co ltd filed Critical Xiamen Guocheng Dentsu Technology Co ltd
Priority to CN201910147283.5A priority Critical patent/CN109962527B/en
Publication of CN109962527A publication Critical patent/CN109962527A/en
Application granted granted Critical
Publication of CN109962527B publication Critical patent/CN109962527B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H02J13/0062
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/128Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol

Landscapes

  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention provides a power distribution terminal fault recording system, which relates to the technical field of power systems and comprises a main station system and a fault recording device access system, wherein the main station system station consists of a fault recording server, a historical data server and a workstation, a B/S system is adopted for construction, and a user logs in the main station system through a Web interface to inquire fault recording information; the fault wave recording device access system is used for communicating and managing with a fault wave recording device arranged in a power distribution terminal, completing connection of massive fault wave recording devices, recording of fault wave recording device information and recording of logs, and comprises a wireless front-end processor system and a wired front-end processor system, wherein a plurality of fault wave recording devices are accessed into the wireless front-end processor system in a GPRS wireless mode, and a plurality of fault wave recording devices are accessed into the wired front-end processor system in an optical fiber Ethernet mode. The method is used for fault detection and fault recording of the distribution network line, and provides basic and accurate data for distribution network fault analysis.

Description

Power distribution terminal fault recording system
Technical Field
The invention relates to the technical field of power systems, in particular to a power distribution terminal fault recording system.
Background
Along with the construction of distribution automation, the current newly-built power distribution room basically realizes the coverage of 'three remote', and the old power distribution room is also subjected to three remote transformation of distribution automation. However, the current distribution automation terminal does not generally have a fault recording function, has no uniform requirements on sampling frequency of analog current voltage and the like, only realizes real-time telemetering of line load, has a limited telemetering current range, generally does not exceed fifty times of a rated value, namely 100A secondary current, and needs to consider primary current conditions of 167A and 20kA for actual secondary fault current; meanwhile, the current and voltage sudden change on the line cannot be captured and recorded in real time; at the moment of switching operation, fault recording data such as current, voltage, switching value and the like at the corresponding time cannot be recorded. Therefore, the power distribution terminal cannot accurately capture accurate fault current of the line at the moments of fault, switch deflection, load voltage mutation and the like, and meanwhile, the sampling frequency is low, and detailed analysis and judgment on the faults of the distribution network line cannot be made. The transformer substation fault recorder is installed at a station outlet, only the recording condition of the whole feeder line can be collected, and the action condition of a switch on the feeder line and the current voltage and switch action conditions of branches cannot be obtained, so that the transformer substation fault recorder cannot meet the distribution network fault analysis. Therefore, a power distribution terminal fault recording system is needed to provide basic and accurate data for distribution network fault analysis.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a power distribution terminal fault recording system which enriches a fault analysis database and improves the operation safety of a distribution network system.
The invention is realized by adopting the following technical scheme:
a power distribution terminal fault recording system comprises a main station system and a fault recording device access system, wherein,
the main station system station consists of a fault recording server, a historical data server and a workstation, is constructed by adopting a B/S system, and a user logs in the main station system through a Web interface to inquire fault recording information;
the fault wave recording device access system is used for communicating and managing with a fault wave recording device arranged in a power distribution terminal, and completing connection of massive terminals, recording of terminal information and recording of logs.
Preferably, the wireless front-end processor system comprises a plurality of wireless communication servers, a plurality of data acquisition switches and a maintenance workstation, wherein a plurality of fault recording devices are connected with a plurality of data acquisition switches through a public communication network, a plurality of data acquisition switches are connected with a plurality of wireless communication servers and the maintenance workstation through a network, and then are connected with the master station system through a forward physical isolation device and a reverse physical isolation device.
Preferably, the wired front-end processor system comprises a plurality of data acquisition switches and a plurality of data acquisition servers, the plurality of fault recording devices are connected with the plurality of data acquisition switches through a scheduling data network, and the plurality of data acquisition switches are connected with the master station system through the plurality of data acquisition servers.
Preferably, the master station system further includes a plurality of backbone switches, and the forward physical isolation device and the reverse physical isolation device are connected to the plurality of backbone switches through a network.
Preferably, the master station system further includes a plurality of backbone switches, and the plurality of data collection servers are connected to the plurality of backbone switches through a network.
Preferably, the Web interface of the master station system comprises a login module, a device selection module, a recording file display module, a recording device position display module, a recording file search module and an account management module, wherein,
the login module is used for guaranteeing the system safety, and related functions can be displayed only through login of an account and a password;
the device selection module is positioned to a specific wave recording device by selecting a power supply station, a transformer substation, a feeder line and an electric room, and information of the wave recording device is displayed on an interface;
the wave recording file display module is used for displaying all files on the left side of the interface, displaying fault wave recording files and downloading related wave recording files by a user according to needs;
the wave recording device position display module displays the specific position of the wave recording device in the middle of the interface in a map form;
the wave recording file searching module is used for searching the wave recording file by the user in a time period selected, and the searched wave recording file is displayed on the left side;
the account management module is used for creating and deleting user accounts, and meanwhile, the WEB interface also provides a function of modifying administrator passwords to manage administrators.
The power distribution terminal fault recording system provided by the invention has the beneficial effects that: the fault wave recording device access system is responsible for carrying out real-time communication and management on the wave recording device with the built-in fault wave recording device of the power distribution terminal, collecting a wave recording file of the wave recording device and GPS positioning information of the device, adding a device accessed into the system, and deleting a waste device; the master station system is used for providing a WEB interface to remotely display the geographic position of the wave recording file and the device, providing a remote downloading interface, and locally downloading and analyzing the fault waveform. The method is used for fault detection and fault recording of the distribution network line, and provides basic and accurate data for distribution network fault analysis.
Drawings
FIG. 1 is a schematic block diagram of a built-in wave recording system of a power distribution terminal according to the present invention;
fig. 2 is a configuration diagram of a Web interface of the master station system.
Detailed Description
To further illustrate the various embodiments, the invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.
The invention will now be further described with reference to the accompanying drawings and detailed description.
As shown in fig. 1, the present embodiment provides a power distribution terminal fault recording system, which includes a master station system and a fault recording device access system. The main station system station consists of a fault recording server 1, a historical data server 2 and a workstation 3, is constructed by adopting a B/S system, and a user logs in the main station system through a Web interface to inquire fault recording information; the fault wave recording device access system is used for communicating and managing with a built-in wave recording device of the power distribution terminal, completing connection of massive terminals, recording of terminal information and recording of logs, and comprises a wireless front-end processor system and a wired front-end processor system.
The wireless front-end processor system comprises a plurality of wireless communication servers 4, a plurality of data acquisition switches 5 and a maintenance workstation 6, a plurality of power distribution terminal built-in fault recording devices 11 are connected with the plurality of data acquisition switches 5 through a public communication network, a firewall 10 is arranged between the public communication network and the plurality of data acquisition switches, the plurality of data acquisition switches 5 are connected with the plurality of wireless communication servers 4 and the maintenance workstation 6 through a network, and then are connected with a plurality of backbone switches 9 of a main station system through forward physical isolation devices 7 and reverse physical isolation devices 8.
The wired front-end processor system comprises a plurality of data acquisition switches 5 and a plurality of data acquisition servers 12, a plurality of fault recording devices are connected with the plurality of data acquisition switches through a scheduling data network, and the plurality of data acquisition switches are connected with a plurality of backbone switches of the main station system through the plurality of data acquisition servers.
When the fault wave recording device is used for accessing a system, when a fault wave recording device arranged in a power distribution terminal is connected, all information connected with the fault wave recording device can be used for displaying the ID and IP information of the fault wave recording device below, and meanwhile, the connection times of the fault wave recording device can be used for seeing the transmitted and received data; when the fault wave recording device has a fault wave recording file, the wave recording file can be stored below the month of the year corresponding to the ID, and the background can conveniently check and analyze the wave recording file; when a new fault wave recording device is added, if a new wave recording device needs to be added into a system, the new fault wave recording device needs to be added in a fault wave recording device access system, the IP and the ID of the fault wave recording device are set, the ID of the fault wave recording device is the unique identity of a terminal and cannot be repeated, the name of the fault wave recording device needs to be set, and meanwhile, the affiliated electric room, feeder line, transformer substation and power supply station need to be determined, so that unified management of the terminal is facilitated, and the newly added terminal needs to contain all information of the terminal.
The communication information of the fault recording device and the fault recording device access system can be stored in a log form, so that the problem of the fault recording device can be conveniently analyzed subsequently, and original data can be searched.
As shown in fig. 2, the Web interface of the master station system includes a login module, a device selection module, a recording file display module, a recording device position display module, a recording file search module, and an account management module, wherein,
the login module is used for guaranteeing the safety of the system, and related functions can be displayed only through login of an account and a password;
the device selection module is positioned to a specific wave recording device by selecting a power supply station, a transformer substation, a feeder line and an electric room, and information of the wave recording device is displayed on an interface;
the wave recording file display module is used for displaying all files on the left side of the interface, displaying fault wave recording files within one year, and downloading related wave recording files by a user according to needs;
the wave recording device position display module displays the specific position of the wave recording device in the middle of the interface in a map form;
the wave recording file searching module is used for searching the wave recording file by the user in a time period selected, and the searched wave recording file is displayed on the left side;
the account management module is used for creating and deleting user accounts, and meanwhile, the WEB interface also provides a function of modifying administrator passwords to manage administrators.
The method and the device provide basic data for power distribution network line fault analysis, enrich a database of fault analysis, and judge whether protection acts correctly, so that safe operation of a power distribution network system is improved.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A power distribution terminal fault recording system is characterized by comprising a main station system and a fault recording device access system, wherein,
the main station system consists of a fault recording server, a historical data server and a workstation, is constructed by adopting a B/S system, and a user logs in the main station system through a Web interface to inquire fault recording information;
the fault wave recording device access system is used for communicating with a built-in fault wave recording device of a power distribution terminal and managing the built-in fault wave recording device of the power distribution terminal, and completing the connection of a large number of fault wave recording devices, the recording of information of the fault wave recording devices and the recording of logs, the fault wave recording device access system comprises a wireless front-end processor system and a wired front-end processor system, a plurality of fault wave recording devices are accessed into the wireless front-end processor system in a GPRS wireless mode, and a plurality of fault wave recording devices are accessed into the wired front-end processor system in an optical fiber Ethernet mode;
the Web interface of the main station system comprises a login module, a device selection module, a recording file display module, a recording device position display module, a recording file searching module and an account management module, wherein,
the login module is used for guaranteeing the system safety, and related functions can be displayed only through login of an account and a password;
the device selection module is positioned to a specific wave recording device by selecting a power supply station, a transformer substation, a feeder line and an electric room, and information of the wave recording device is displayed on an interface;
the wave recording file display module is used for displaying a fault wave recording file on the left side of the interface, and a user downloads the related wave recording file according to the requirement;
the wave recording device position display module displays the specific position of the wave recording device in the middle of the interface in a map form;
the wave recording file searching module is used for searching the wave recording file by the user in a time period selected, and the searched wave recording file is displayed on the left side;
the account management module is used for creating and deleting user accounts, and meanwhile, the WEB interface also provides a function of modifying administrator passwords to manage administrators.
2. The power distribution terminal fault recording system of claim 1, wherein: the wireless front-end processor system comprises a plurality of wireless communication servers, a plurality of data acquisition switches and a maintenance workstation, wherein a plurality of fault recording devices are connected with the data acquisition switches through a public communication network, the data acquisition switches are connected with the maintenance workstation through a network, and then the data acquisition switches are connected with the main station system through a forward physical isolation device and a reverse physical isolation device.
3. The power distribution terminal fault recording system of claim 1, wherein: the wired front-end processor system comprises a plurality of data acquisition switches and a plurality of data acquisition servers, a plurality of fault recording devices are connected with the data acquisition switches through a scheduling data network, and the data acquisition switches are connected with the master station system through a plurality of data acquisition servers.
4. The power distribution terminal fault recording system of claim 2, wherein: the main station system also comprises a plurality of backbone switches, and the forward physical isolation device and the reverse physical isolation device are connected with the plurality of backbone switches through a network.
5. The power distribution terminal fault recording system of claim 3, wherein: the main station system also comprises a plurality of backbone switches, and the plurality of data acquisition servers are connected with the plurality of backbone switches through a network.
CN201910147283.5A 2019-02-27 2019-02-27 Power distribution terminal fault recording system Active CN109962527B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910147283.5A CN109962527B (en) 2019-02-27 2019-02-27 Power distribution terminal fault recording system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910147283.5A CN109962527B (en) 2019-02-27 2019-02-27 Power distribution terminal fault recording system

Publications (2)

Publication Number Publication Date
CN109962527A CN109962527A (en) 2019-07-02
CN109962527B true CN109962527B (en) 2020-10-09

Family

ID=67023881

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910147283.5A Active CN109962527B (en) 2019-02-27 2019-02-27 Power distribution terminal fault recording system

Country Status (1)

Country Link
CN (1) CN109962527B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110334291A (en) * 2019-05-09 2019-10-15 上海许继电气有限公司 Realize that web client shows the sinusoidal system and method for failure wave-recording based on highCharts technology
CN110672971A (en) * 2019-07-04 2020-01-10 广州供电局有限公司 Built-in fault recording device of power distribution terminal
CN112600309B (en) * 2021-03-03 2021-07-13 钛能科技股份有限公司 Low-voltage power distribution intelligent diagnosis system with wave recording function
CN114113881A (en) * 2021-11-08 2022-03-01 浙江华电器材检测研究院有限公司 Characteristic waveform acquisition device of configuration formula distribution network

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202712974U (en) * 2012-06-12 2013-01-30 上海市电力公司 Power utilization information acquisition system
CN103490516B (en) * 2013-10-15 2015-05-27 国家电网公司 Power distribution automation feeder terminal with fault wave recording function and method thereof
CN104502753A (en) * 2014-12-15 2015-04-08 国家电网公司 Networked on-line real-time analysis system for electric power fault recording device and application of system
CN105305482A (en) * 2015-08-27 2016-02-03 国网山东省电力公司淄博供电公司 Distributed-type power grid-connected monitoring system based on B/S architecture

Also Published As

Publication number Publication date
CN109962527A (en) 2019-07-02

Similar Documents

Publication Publication Date Title
CN109962527B (en) Power distribution terminal fault recording system
CN106990328B (en) Distribution network emergency repair abnormal data analysis and fault positioning system and method
CN102761174B (en) Fault intelligent diagnosis and analysis system and method based on dispatching integrated data platform
CN106980071B (en) Visual first-aid repair system based on power grid GIS and working method thereof
CN106253486B (en) A kind of power supply system intelligent fault Computer Aided Analysis System
CN102427277B (en) Area intelligent power distribution network system
KR100964298B1 (en) A network analysis system
CN107167704B (en) Power distribution network fault diagnosis system and method based on CIM model
CN113629876B (en) Test system and test method of tervelum inspection module
CN106872856B (en) Power distribution network fault active first-aid repair system and method based on multi-element fault collection
CN104753178A (en) Power grid fault handling system
CN108896868A (en) One kind is monitored on-line with formula and realizes system and method
CN105160864A (en) Operating data monitoring system and method for intelligent ammeters
CN112968520A (en) Transformer area topology identification method based on transformer area key node characteristic current information
CN105446197B (en) A kind of column control ground critical data detection device
CN105681469A (en) Mobile terminal used for hydropower station, and data management system and method
CN114398862A (en) Remote point table maintenance method based on terminal debugging device
CN116317171B (en) Electric quantity and non-electric quantity internet of things monitoring device
CN116169778A (en) Processing method and system based on power distribution network anomaly analysis
CN106546854A (en) A kind of combining unit for supporting to record wave energy
CN110837027A (en) Auxiliary decision method and system based on scheduling end key information extraction under power grid fault condition
CN109361267A (en) Failure wave-recording networked system
CN116581881B (en) Intelligent relay protection integrated management system for oilfield group electrical equipment
CN111062825A (en) Low-voltage fault diagnosis and rapid power restoration method based on mobile App
CN202661563U (en) Oscillograph fault analysis platform

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