CN104318300B - Three-card-in-one based transformer substation tool management system and method - Google Patents
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Abstract
The invention discloses a three-card-in-one based transformer substation tool management system and method. The management system comprises a RFID electronic tag for identifying uniqueness of cards, a portable RFID reader for reading information of three types of RFID electronic tag identification cards of transformer substation workers, temporary ground wires and temporary ground points, a fixed RFID reader for reading electronic tag information in the identification cards of the temporary ground wires; a Zigbee router and coordinator for achieving information transfer of the portable RFID readers and a control center, and the background control center for state display of the temporary ground wires of a transformer substation and alarm information processing and storage. The three-card-in-one based transformer substation tool management system and method can be applied to building of an intelligent power grid, can improve the management level of power enterprises, meanwhile can effectively and completely eradicate missed ground wire taking, missed ground wire dismounting, switching-on with the ground wires and other malignant misoperation accidents, guarantees the power grid, equipment and personal safety to the most extent and has high application value.
Description
Technical field
The present invention relates to transformer station, the transformer station's tool management system and method more particularly to based on three engagings one.
Background technology
In transformer station, the state of personnel and some important safety Work tools becomes affects the one of Utilities Electric Co.'s reliability service
Individual key factor, because carelessness during person works, some Work tools are not dealt carefully with or Normalization rule and the thing that leads to
Therefore happen occasionally.
By taking temporary ground wire as an example, temporary ground wire installs temporary ground wire as the important safety instrument in transformer station
It is one safe and reliable protective barrier of workmen in electric operating scene.The management of temporary ground wire in transformer station is being examined
It is also an important link in core, scientific management also functions to important effect for reduction accident.China is in electric power work at present
Manually mode is generally used in journey operation maintenance job site and checks temporary ground wire, means are original, safety and efficiency
Lowly, misoperation faults such as " leakage are torn ground wire, leakage open and receives ground wire, switching on earth wire " is caused, potential safety hazard is brought.In workman to electricity
When power scene is overhauled, the power supply at station scene can be initially switched off, afterwards one end of temporary ground wire is clipped in
On power equipment, other end is fixed with grounded metal bolt.Once maintenance is completed, before field power supply is closed, it is necessary to
The two ends of earth lead are removed from power equipment and earth stud.If not removing in time and power supply closing a floodgate, Jiu Huifa
Raw electric power accident, causes irremediable loss.Therefore it is highly desirable to connect come Real-time Collection by the way of automated management
The working condition of ground wire, judges whether power supply has temporary ground wire not remove in time before closing a floodgate.With intelligent grid pace of construction
Quickening, the degree of links informatization needs constantly to be lifted.And wire management is grounded as Phase of Electric Power Projects operation
A kind of middle important safety measure, needs to employ new technology, and lifts the automatic management level of earth lead.
Internet of Things is the emerging technology areas of IT industry circle, is with a wide range of applications in intelligent grid construction, and by
Gradually paid attention to.Complete perception, reliability are transmitted, the technical characteristics that Intelligent treatment is Internet of Things.Complete perception refers to utilization
The devices such as RFID, Quick Response Code, GPS, photographic head, sensor, using technological means such as perception, capture and measurements whenever and wherever possible to thing
Body carries out information gathering and acquisition.Reliable transmission refers to the fusion by communication networks such as communication networks with the Internet, and object is connect
Enter information network, carry out reliable information exchange whenever and wherever possible and share.Intelligent treatment refers to each using cloud computing, fuzzy diagnosis etc.
Intelligent Computation Technology is planted, the cross-region, inter-trade, interdepartmental data and information to magnanimity is analyzed process, realizes intelligence
The decision-making and control of change.
At present, technology of Internet of things is all achieved at aspects such as power transmission and transformation equipment state monitoring, intelligent substation, intelligent meter data recordings
Some achievements in research, State Grid Corporation of China have carried or take part in the related national science and technology key special subjects of multinomial Internet of Things.Thus
It can be seen that, Internet of Things be intelligent grid build technical support, although some technology of Internet of things intelligent grid all too many levels
Jing is in application stage, the substation intelligent monitoring and supplementary controlled system such as based on Internet of Things（Patent）, Internet of Things intelligently becomes
Power station sensing interconnection system（Patent）, based on Internet of Things and kelvin effect power line-deicing implementation（Patent）Deng, in addition it is also necessary to
Go further to explore and carry out applied research work of more technology of Internet of things in intelligent grid.
Some units and mechanism have studied the management that technology of Internet of things RFID is used for transformer station's various aspects, such as transformer station
Staff is equipped with rfid card and realizes work attendance, positioning etc.；Transformer station's visual plant is equipped with rfid card to be used to patrol and examine；Important safety work
Tool is equipped with rfid card to be used to manage concentratedly, but mostly from problem in a certain respect, it is impossible to provide omnibearing solution.Three kinds
Rfid card establishes one's own system, the management system for respectively having oneself, establishes one's own system, it is impossible to shared information.Drawback is system repeated construction, is
System equipment can not interconnect and cause unnecessary waste.
Document [research of temporary ground wire orientation management system, Guo Fangying, multitude in the transformer station based on RF I D technologies
English, Yunnan Institute for nationalities's journal (natural science edition), in November, 2011] study temporary ground wire positioning, Ke Yishi in transformer station
The positioning of positioning and destination in the now centralized management of instrument, motor process, but substantially motion orientation can only be determined, it is impossible to
Accurately judge temporarily line mounting position and state.
Document [transformer station's temporary ground wire on-line monitoring system, Huang Rui, Liang Qinglong, Zhang Baozhu, Huang Qiao, Chinese high-new skill
Art enterprise, 33 phases in 2010] research and utilization electronics button realizes transformer station's temporary ground wire on-line monitoring, but work(is constituted to equipment
Can module, device property and parameter select not providing detaileds description, and different system module, different components to recognition effect,
System functional reliability tool has a significant impact.
Document [the intelligence tool cabinet management system based on RFID, Jia Jingshan；Yin Shiyou；Deer show wind；Chinese collective economy
, 25 phases in 2012] and Managed Solution of the research based on the intelligence tool cabinet of RFID, Work tool in power tool cabinet can only be solved
Daily management problem.
The content of the invention
For the shortcoming of above prior art, the invention provides a kind of tool management system of transformer station based on three engagings one
System and method.
Technical scheme is as follows：
Based on the transformer station management system of three engagings one, the management system includes：
RFID, with uniqueness ID, is arranged on work of transformer substation personnel, temporary ground wire and temporary grounding
In the tag card of point, for being identified to the uniqueness of card；
Portable RFID reader, reads three kinds of the work of transformer substation personnel, temporary ground wire and temporary grounding point
Information in RFID；
Fixed RFID reader, is fixed in transformer station's Tool Cabinet, for reading the electronics in temporary ground wire tag card
Label information；
Zigbee routers and coordinator, for the multi-hop wireless networking of 2.4GHz industry open frequency ranges, realize portable
RFID reader and the information transmission of control centre；
Background control center, receives the Card Reader information of Portable RFID reader and fixed RFID reader, and to power transformation
Stand temporary ground wire status display and alarm information processing retain.
Further, the RFID includes giver badge, temporary ground wire tool identification card or temporary grounding
Point device electronic tag.
Further, the Portable RFID reader is included the first single chip control module and is connected with the control module respectively
The display module for connecing, Keysheet module, Zigbee terminal modules, the first RFID reader and the first power module, the Zigbee
Connected by RS232 serial ports between terminal module and single chip control module；The RFID reader and single chip control module
Between by SPI interface connect.
Further, the fixed RFID reader is included second singlechip control module and is connected with the control module
RS485 modules, the second RFID reader and second source module.
Based on the substation management method of three engagings one, the method comprises the steps：
1）The label information of the temporary ground wire of Tool Cabinet is read by fixed reader；
2）By the tag card of portable reader read work personnel, temporary ground wire label and temporary grounding point label
Information；
3）Temporary grounding point, temporary ground wire label information and staff identification's card information to above-mentioned reading is carried out minute
Analysis, and control centre is sent to by Zigbee wireless multi-hop networks, interim temporary grounding point, earth lead are judged by control centre
Label information and the mark card information corresponding relation of staff, if three card informations correspondence is consistent, then it represents that temporary ground wire
By operated by personnel, and the operation occurs in related temporary grounding point；
4）If three card informations correspondence is inconsistent, show do not have staff to be responsible for operation to temporary ground wire or interim
The operation of earth point is unsuccessful, and after certain time length, background control center sends information warning.
Further, in the step 1, the label information of the temporary ground wire of fixed reader reading Tool Cabinet includes：
When temporary ground wire is placed in Tool Cabinet, in its tool identification card insertion correspondence fixed reader, fixation is read
Read device to operate by cycle Card Reader, obtain the temporary ground wire whether information in Tool Cabinet, the information is by RS485 cable grids
Network mode passes to control centre, shows corresponding information, carries out state for future reference；
When temporary ground wire is lent, the identification card of earth lead is extracted from the draw-in groove of fixed reader, fixed reader
The already out Tool Cabinet of the temporary ground wire can be recognized by Card Reader operation, the information is sent to control centre in time and is shown
Retain, identification of swiping the card is carried out successively to the tool identification card of giver badge and temporary ground wire by Portable RFID reader
Operation, to represent the temporary ground wire at present in staff's handss；
When temporary ground wire is given back, now fixed reader reads temporary ground wire tool identification card, and Card Reader is believed
Breath returns to control centre and represents that the temporary ground wire is given back by staff.
Further, the information for reading temporary ground wire label by portable reader in the step 2 includes：
When temporary ground wire is mounted, Portable RFID reader is to giver badge, temporary grounding point device tag card
Swiping card is carried out successively with temporary ground wire tool identification card, when three's information correspondence is consistent, Portable RFID reader
Display screen shows and mount successfully or accordingly that display lamp is lighted, staff is to the temporary ground wire and temporary grounding point for expression
Successfully mounted, the information reporting is passed to control centre by the reader；
When temporary ground wire unmarshaling, portable RFID reader is identified to giver badge, temporary grounding point device again
Card and temporary ground wire tool identification card carry out swiping card successively, and the display screen of Portable RFID reader shows unmarshaling success
Or accordingly display lamp is bright, represent that staff is successfully separated to the temporary ground wire and temporary grounding point, the reading
The information reporting is passed to control centre by device.
Advantages of the present invention is：
（1）The substation equipment management method of three engagings one for being proposed, can avoid personnel, instrument, equipment rfid card
Management is established one's own system, cannot share information, system repeated construction, and system equipment can not interconnect and cause unnecessary waste.
（2）Transformer station's tool management method of three engagings one for being proposed, effectively can be tracked to substation equipment
Management, especially can accomplish from the whole process control for lending, being articulated to unmarshaling and return to security tool.
（3）In the three card unification methods for being proposed, by staff identification's card, tool identification card, device identification card with
The correspondence of Portable RFID reader, can recognized to the responsibility during equipment construction operation using instrument to staff
It is fixed clear.
（4）In the three card unification methods for being proposed, by temporary ground wire tag card and the brush successively of earth point tag card
Card matching, the leakage that can effectively prevent in the past temporary ground wire pulls out, leak commutation as.
（5）In the three card unification methods for being proposed, the design of various alarm mechanisms and state instruction can be in staff
Scene and background control center each serve as equipment control state, abnormal conditions and are reminded and warning function, convenient independent behaviour
Make and network to monitor.
（6）In the three card unification methods for being proposed, the transformer station's standardized administration that is formed as of non-standard operation inference mechanism is carried
For instructing.
Description of the drawings：
Fig. 1：Present system schematic diagram；
Fig. 2：Working-flow sketch；
Fig. 3：Portable RFID reader structure principle chart；
Fig. 4：Fixed RFID reader structure principle chart；
Fig. 5：Portable and fixation RFID reader operating process and logic relation picture；
Fig. 6：Portable RF ID reader operation general flow charts.
Specific embodiment
The present invention is directed to substation safety tool management problem, designer's card, tool card, uses equipment（Object card）,
From personnel, instrument storage, go out warehouse-in, started with using links, realizing omnibearing management, on the one hand ensure that instrument is placed
Standardization, on the other hand ensure that the standardization of in-out-storehouse management, while the specification operated during ensure that instrument use
Property, and serial judgment rule is derived by analyzing, it is indicated that nonstandard administrative vulnerability.Eliminated safe hidden trouble with this, improve instrument
Management level.The integrated management level and the utilization rate of equipment of raising equipment, reduces system repeated construction.Improve tool management water
It is flat, operations staff's total quality is improved, it is final to improve substation operation level.
Based on three engaging one substation safety tool management system, by taking temporary ground wire as an example, it is ensured that earth lead can
By mounting, extension has torn control open, returns whole process and has a record from lending to for Tool Cabinet, and synthetic time series rule and suggestion.System
Including using device identification card, tool identification card, giver badge, portable RFID reader is some, Tool Cabinet is fixed RFID and read
Read device some.Such as staff wears giver badge, temporary ground wire wearing tool identification card, temporary grounding in transformer station
Point wearing device identification card.
As shown in figure 1, system is divided into 5 parts：That is three class RFIDs（Including giver badge, temporary grounding
The Line tool tag card, temporary grounding point device tag card）, Portable RFID reader, fixed RFID reader, Zigbee routes
Device and coordinator, background control center.Wherein temporary ground wire status information capture includes Portable RFID reader, fixation
RFID reader, Zigbee routers and coordinator, four parts of power module and single chip control module, power module are main
Power for acquisition terminal.
As shown in figure 3, Portable RFID reader is included single chip control module and is connected with the control module respectively
Display module, Keysheet module, Zigbee terminal modules, RFID reader and power module, the Zigbee terminal modules and list
Connected by RS232 serial ports between piece machine control module；Connect by SPI between the RFID reader and single chip control module
Mouth connection.Single chip control module is AT89S51, and RFID adopts 13.56MHz, meets ISO14443A standards, using MFRC5XX
Serial low-power chip, Zigbee terminal modules, power module.
As shown in figure 4, the fixed RFID reader is included single chip control module and is connected with the control module
RS485 modules, RFID reader and power module.Single chip control module is AT89S51, and RFID adopts 13.56MHz, meets
ISO14443A standards, using MFRC5XX series low-power chips, RS485 modules, power module.
Another object of the present invention also provides a kind of substation equipment management method of three engagings one, such as Fig. 2, Fig. 5,6
Shown, method is comprised the following steps that：
1st, when initial, giver badge is worn by staff, the Portable RFID reader quilt before maintenance task is started
Distribute to the staff for wearing giver badge.
2nd, Tool Cabinet temporary ground wire status monitoring：A fixed reader is equipped with for each temporary ground wire at this, is faced
When earth lead when placing in Tool Cabinet, in its tool identification card insertion correspondence fixed reader, fixed reader passes through the cycle
Card Reader is operated, and obtains the temporary ground wire whether information in Tool Cabinet, and the information passes to control by RS485 cable network modes
Center processed, shows corresponding information, carries out state for future reference.
3rd, temporary ground wire lends operation：When needing to perform the maintenance task of transformer station, take out certain from Tool Cabinet
The temporary ground wire of quantity, now, the identification card of earth lead is extracted from the draw-in groove of fixed reader, and fixed reader is by reading
Card operation can recognize the already out Tool Cabinet of the temporary ground wire, and the information is sent to control centre in time and carries out display retention.
Then, Portable RFID reader is swiped the card successively to the tool identification card of giver badge and temporary ground wire
Identification operation, to represent the temporary ground wire at present in staff's handss.
If the operation is not carried out, after certain hour, control centre can send the ground connection line dropout and alert, portable
Formula RFID shows the corresponding ground wire number of screen display, and is warned.
The information that Portable RFID reader Card Reader is obtained, by Zigbee wireless multi-hop networks, passes control centre back, with
Just retention is shown in systems.
4th, temporary ground wire mounting operation：In operation field, while temporary ground wire is mounted, Portable RFID reader
Swiping card is carried out successively to giver badge, temporary grounding point device tag card and temporary ground wire tool identification card（Successively
Order is swiped the card, to show the one-to-one corresponding of three cards）, duration of swiping the card successively is temporarily set to 1 minute, shows that the staff is faced using this
When earth lead carry out upkeep operation in the temporary grounding point.
The display screen display three of Portable RFID reader corresponds to successfully, or with the bright instruction of certain lampet.Simultaneously
Control centre confirms after receiving reporting information that the ground wire has been mounted and carries out display retention.
5th, temporary ground wire unmarshaling operation：Upkeep operation is completed, and after unmarshaling ground wire, portable RFID reader is again to personnel
Tag card, temporary grounding point device tag card and temporary ground wire tool identification card carry out swiping card successively, show the work
Personnel are successfully separated to the temporary ground wire and temporary grounding point, i.e. unmarshaling temporary ground wire success.Portable RF ID
Both display screen displays unmarshaling success of reader, or with the bright instruction of certain lampet.Control centre receives reporting information
Confirm that the ground wire unmarshaling has carried out display retention later.
6th, temporary ground wire gives back operation：Temporary ground wire puts back to Tool Cabinet, temporary ground wire tool identification card need to be inserted
Enter in corresponding fixed RFID reader draw-in groove, Card Reader information can be passed to control centre and represent that the temporary ground wire is worked
Personnel give back.
Special circumstances and various alarms：
1st, there is not Portable RFID reader corresponding with giver badge when aforesaid operations are carried out, can point out always not
There is staff to be responsible for alarm, can show that screen display or corresponding lamp are bright in reader, and report control centre to carry out at alarm
Reason.
2nd, during hanging earthing conductor, if occur three card do not swipe the card successively, or second card, the 3rd card more than swipe the card duration when,
Then think the i.e. improper mounting of illegal operation, terminal carries out alarm, meanwhile, control centre receives the category information and is also carried out
Warning operation.
3rd, during unmarshaling ground wire, if occur three card do not swipe the card successively, or second card, the 3rd card more than swipe the card duration when,
Then think the i.e. improper unmarshaling of illegal operation, terminal carries out alarm, meanwhile, control centre receives the category information and is also carried out
Warning operation.
4th, after temporary ground wire is lent, before mounting or after successful unmarshaling, if not there is Tool Cabinet to give back the ground wire always
Information, the duration are temporarily set to 60 minutes according to transformer station's size and upkeep operation property, then control centre can display alarm.
I.e.：Before mounting in situation, after Portable RFID reader carries out swiping card to the temporary ground wire at Tool Cabinet, that is, start
Timing；After successful unmarshaling in situation, Portable RFID reader is swiped the card to temporary ground wire and temporary grounding point three
Operation, starts timing after confirming successfully unmarshaling.After certain time length, Portable RFID reader sends the temporary ground wire and does not enter
Row operation is alerted.Information passes to control centre simultaneously, carries out display retention.
The present invention has following features based on the transformer station management system of three engagings one：
（1）Technology of Internet of things is applied to into the construction of intelligent grid, Management of Electrical Enterprise level can be lifted, improve power train
The reliability and stability of system.
（2）The radio frequency discrimination RFID of integrated application technology of Internet of things and Zigbee networking technologys, wireless communication technique, calculating
The technologies such as machine software and hardware technology, electrical applications and safety management, can meet stable, reliable and intelligentized requirement, realize to making
The real-time remote monitoring of industry scene temporarily line, realizes the substantial leap of security management and control.
（3）Low power dissipation design, it is with low cost, it is easy to large-scale promotion.
（4）The design and use of transformer station's operation field ground wire acquisition terminal, terminal are devised based on RFID and Zigbee
Scientific and reasonable, working service is convenient.
（5）Mesh network is constituted using Zigbee routing nodes, without the need for public network transmission information, later stage operating cost is saved.
（6）System structure consider devise reading reliability measure, effectively can prevent leakage receive ground wire, leakage tear open ground wire,
The generation of the pernicious misoperation fault such as switching on earth wire, ensures electrical network, equipment and personal safety, to greatest extent with very strong
Using value.
（7）Parts selection is scientific and reasonable, is easy to quick large-scale production.
Claims (2)
1. one substation management method is engaged based on three, it is characterised in that the method comprises the steps：
1）The label information of the temporary ground wire of Tool Cabinet is read by fixed reader；
2）By the letter of the tag card of portable reader read work personnel, temporary ground wire label and temporary grounding point label
Breath；
3）Temporary grounding point, temporary ground wire label information and staff identification's card information to above-mentioned reading is analyzed,
And control centre is sent to by Zigbee wireless multi-hop networks, temporary grounding point, earth lead label letter are judged by control centre
Breath and the mark card information corresponding relation of staff, if three card informations correspondence is consistent, then it represents that temporary ground wire is by working
Human users, and operation generation is in related temporary grounding point；
4）If three card informations correspondence is inconsistent, show do not have staff to be responsible for operation to temporary ground wire or in temporary grounding
The operation of point is unsuccessful, and after certain time length, background control center sends information warning；
The step 2）In by portable reader read temporary ground wire label information include：
When temporary ground wire is mounted, Portable RFID reader is to giver badge, temporary grounding point device tag card and faces
When earth lead tool identification card carry out swiping card successively, when three's information correspondence is consistent, Portable RFID reader it is aobvious
Display screen display is mounted successfully or corresponding display lamp is lighted, and represents that staff is carried out to the temporary ground wire and temporary grounding point
Successfully mount, the information reporting is passed to control centre by the reader；
When temporary ground wire unmarshaling, portable RFID reader again to giver badge, temporary grounding point device tag card and
Temporary ground wire tool identification card carries out swiping card successively, and the display screen of Portable RFID reader shows unmarshaling success or phase
Answer display lamp bright, represent that staff is successfully separated to the temporary ground wire and temporary grounding point, the reader will
The information reporting passes to control centre.
2. it is according to claim 1 based on three engaging one substation management method, it is characterised in that the step 1）In
Fixed reader reads the label information of the temporary ground wire of Tool Cabinet to be included：
When temporary ground wire is placed in Tool Cabinet, in its tool identification card insertion correspondence fixed reader, fixed reader
Operated by cycle Card Reader, obtain the temporary ground wire whether information in Tool Cabinet, the information passes through RS485 cable network sides
Formula passes to control centre, shows corresponding information, carries out state for future reference；
When temporary ground wire is lent, the identification card of earth lead is extracted from the draw-in groove of fixed reader, and fixed reader passes through
Card Reader operation can recognize the already out Tool Cabinet of the temporary ground wire, and the information is sent to control centre in time and carries out display to be stayed
Deposit, the identification behaviour that swipes the card is carried out successively to the tool identification card of giver badge and temporary ground wire by Portable RFID reader
Make, the temporary ground wire is represented at present in staff's handss, if not there is the identification operation of swiping the card successively, show do not have
Staff is responsible for operation to temporary ground wire, and after certain time length, background control center sends information warning；
When temporary ground wire is given back, now fixed reader reads temporary ground wire tool identification card, and Card Reader information is returned
Pass to control centre and represent that the temporary ground wire is given back by staff.
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| CN201410580787.3A CN104318300B (en) | 2014-10-27 | 2014-10-27 | Three-card-in-one based transformer substation tool management system and method |
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| CN201410580787.3A CN104318300B (en) | 2014-10-27 | 2014-10-27 | Three-card-in-one based transformer substation tool management system and method |
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| CN104318300B true CN104318300B (en) | 2017-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105044542B (en) * | 2015-08-04 | 2017-10-27 | 国网上海市电力公司 | A kind of temporary ground wire state self checking method of power equipment |
| CN106532954B (en) * | 2016-12-09 | 2019-07-26 | 国网山东省电力公司微山县供电公司 | Ground state monitoring method and system |
| CN108390461A (en) * | 2018-04-26 | 2018-08-10 | 广东电网有限责任公司 | Substation's temporary grounding wire management system |
| CN109740709A (en) * | 2019-03-05 | 2019-05-10 | 中车太原机车车辆有限公司 | A kind of electrical cubicle auxiliary connection device based on RFID |
| CN109813996A (en) * | 2019-03-19 | 2019-05-28 | 贵州电网有限责任公司 | A kind of station operation state of earth wire monitoring device and monitoring method |
| CN111461280B (en) * | 2020-03-31 | 2022-10-11 | 国网山东省电力公司莱芜供电公司 | Transformer substation tool safety management and control method and system based on information classified storage |
| CN113036545A (en) * | 2021-03-11 | 2021-06-25 | 广东电网有限责任公司 | Management system and method for grounding wire |
| CN114455237A (en) * | 2022-02-18 | 2022-05-10 | 国网山东省电力公司滨州供电公司 | Transformer substation grounding wire access device and use method |
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| KR100781333B1 (en) * | 2006-10-27 | 2007-11-30 | 한국전력공사 | Earth resistance integration monitoring system for the grounding wire of electric pole |
| CN101692587A (en) * | 2009-09-09 | 2010-04-07 | 重庆大学 | System and method thereof for online monitoring and managing security tools and instruments of transformer substation |
| CN202120306U (en) * | 2010-06-07 | 2012-01-18 | 南京工程学院 | Electric power ground wire intelligent management system based on RFID |
| CN203707645U (en) * | 2014-01-14 | 2014-07-09 | 国网河北省电力公司衡水供电分公司 | Temporary grounding wire hanging information monitoring device in substation operation site |
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2014
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| JP2005192315A (en) * | 2003-12-25 | 2005-07-14 | Matsushita Electric Ind Co Ltd | Box housed type electrical apparatus |
| KR100781333B1 (en) * | 2006-10-27 | 2007-11-30 | 한국전력공사 | Earth resistance integration monitoring system for the grounding wire of electric pole |
| CN101692587A (en) * | 2009-09-09 | 2010-04-07 | 重庆大学 | System and method thereof for online monitoring and managing security tools and instruments of transformer substation |
| CN202120306U (en) * | 2010-06-07 | 2012-01-18 | 南京工程学院 | Electric power ground wire intelligent management system based on RFID |
| CN203707645U (en) * | 2014-01-14 | 2014-07-09 | 国网河北省电力公司衡水供电分公司 | Temporary grounding wire hanging information monitoring device in substation operation site |
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| CN104318300A (en) | 2015-01-28 |
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