CN107154674B - Power grid equipment linkage defect eliminating method based on Internet of things and framework thereof - Google Patents
Power grid equipment linkage defect eliminating method based on Internet of things and framework thereof Download PDFInfo
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- CN107154674B CN107154674B CN201610976581.1A CN201610976581A CN107154674B CN 107154674 B CN107154674 B CN 107154674B CN 201610976581 A CN201610976581 A CN 201610976581A CN 107154674 B CN107154674 B CN 107154674B
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- 230000007547 defect Effects 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012544 monitoring process Methods 0.000 claims abstract description 67
- 230000008030 elimination Effects 0.000 claims abstract description 58
- 238000003379 elimination reaction Methods 0.000 claims abstract description 58
- 238000004891 communication Methods 0.000 claims description 17
- 230000008034 disappearance Effects 0.000 abstract description 12
- 238000012545 processing Methods 0.000 abstract description 8
- 238000007791 dehumidification Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 6
- 238000012806 monitoring device Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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- H02J13/0017—
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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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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
- Y04S40/128—Systems 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
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Abstract
The invention discloses a power grid equipment linkage defect eliminating method based on the Internet of things and a framework thereof, wherein the method comprises the following steps: associating the power grid equipment with the defect eliminating device to obtain an association relation, and storing the association relation in an application system; the method comprises the steps that an Internet of things sensor collects state monitoring data of the power grid equipment and sends the state monitoring data to an application system; and if the state monitoring data exceed a preset alarm threshold value, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation. Through setting up the disappearance device on electric wire netting equipment or around electric wire netting equipment, when discovering the state anomaly, the accessible starts the corresponding disappearance device and carries out the disappearance processing in time, can effectively improve the security of electric wire netting operation, avoids secondary major accident to take place.
Description
Technical Field
The invention relates to the technical field of fault processing, in particular to a power grid equipment linkage defect eliminating method based on the Internet of things and a framework thereof.
Background
At present, in order to realize automation and intellectualization of operation management of power distribution network equipment, the real-time state quantity and environment quantity acquisition, real-time monitoring and remote management are carried out on facilities such as a pole-mounted circuit breaker, a pole-mounted switch, a lightning arrester, line current and voltage, a distribution network room and a ring main unit in a line, so that the state monitoring and state maintenance of the power distribution network operation equipment are realized, the line fault early warning and fault warning efficiency is effectively improved, and the safe and reliable operation of the line is guaranteed.
With the construction of the power grid being accelerated, the investment of the distribution network is increased continuously, and for power supply enterprises, the operation cost of equipment is controlled as much as possible, so that the power supply enterprises have new requirements on the maintenance mode of the distribution network. And the power system gradually adopts equipment with higher quality level and reliability, so that a foundation is provided for realizing state maintenance of the distribution network. Although the state maintenance in the distribution network gradually replaces the planned maintenance, a certain problem still exists in the maintenance process, and how to effectively utilize the existing state monitoring system to identify the early signs of defects and faults to realize hidden dangers and defects, discover the early treatment as soon as possible, prevent the defects from happening, effectively improve the safety of the operation of the power grid, and is the problem to be solved at present.
In chinese patent publication No. CN104155549A, a method and a system for processing defects of an online monitoring device of an electrical power system are provided. The method comprises the following steps: determining the type of the online monitoring device with the current defect; determining product information for the type of the online monitoring device; searching a defect processing mode corresponding to the product information; and eliminating the defects existing at present according to the defect processing mode. But the scheme aims at the defect treatment of an online monitoring device, and is not a power grid device; and the defect eliminating treatment is carried out manually, and when the maintainer is far away from the power grid equipment, the defect eliminating cannot be carried out in time, so that potential safety hazards exist.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the power grid equipment linkage defect eliminating method and the framework thereof based on the Internet of things can timely treat hidden dangers and defects and effectively improve the operation safety of a power grid.
In order to solve the technical problems, the invention adopts the technical scheme that: a power grid equipment linkage defect eliminating method based on the Internet of things comprises the following steps:
associating the power grid equipment with the defect eliminating device to obtain an association relation, and storing the association relation in an application system;
the method comprises the steps that an Internet of things sensor collects state monitoring data of the power grid equipment and sends the state monitoring data to an application system;
and if the state monitoring data exceed a preset alarm threshold value, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation.
The invention also relates to a linkage defect eliminating framework of the power grid equipment based on the Internet of things, which comprises the power grid equipment, the sensor of the Internet of things, a defect eliminating device and an application system; the IOT sensor is arranged on the power grid equipment, the defect eliminating device is arranged on the power grid equipment or around the power grid equipment, and the application system is in communication connection with the IOT sensor and the defect eliminating device respectively;
the application system is used for storing the incidence relation between the power grid equipment and the defect eliminating device;
the Internet of things sensor is used for acquiring state monitoring data of the power grid equipment and sending the state monitoring data to an application system;
and the application system is also used for sending a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation if the state monitoring data exceeds a preset alarm threshold value.
The invention has the beneficial effects that: based on the power internet of things, state monitoring data of the power grid equipment can be acquired in real time through an internet of things sensor, and the running state and running environment state of the power grid equipment are monitored in real time; through setting up the disappearance device on electric wire netting equipment or around electric wire netting equipment, when discovering the state anomaly, the accessible starts the corresponding disappearance device and carries out the disappearance processing in time, can effectively improve the security of electric wire netting operation, avoids secondary major accident to take place.
Drawings
Fig. 1 is a flow chart of a power grid device linkage defect elimination method based on the internet of things;
FIG. 2 is a flowchart of a method according to a first embodiment of the present invention;
fig. 3 is a schematic diagram of a power grid device linkage defect elimination framework based on the internet of things;
fig. 4 is a schematic configuration diagram according to a second embodiment of the present invention.
Description of reference numerals:
100. a power grid device; 200. an Internet of things sensor; 300. a defect eliminating device; 400. an application system; 500. a convergence controller; 600. and (4) a gateway.
Detailed Description
In order to explain technical contents, objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The most key concept of the invention is as follows: and arranging a defect eliminating device, and starting the defect eliminating device to eliminate defects when the abnormal state of the power grid equipment is detected.
Referring to fig. 1, a power grid device linkage defect elimination method based on the internet of things includes:
associating the power grid equipment with the defect eliminating device to obtain an association relation, and storing the association relation in an application system;
the method comprises the steps that an Internet of things sensor collects state monitoring data of the power grid equipment and sends the state monitoring data to an application system;
and if the state monitoring data exceed a preset alarm threshold value, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation.
From the above description, the beneficial effects of the present invention are: the safety of the operation of the power grid can be effectively improved.
Further, after the "sending the absence elimination instruction to the absence elimination device corresponding to the power grid equipment", the method further includes:
and the defect eliminating device carries out defect eliminating treatment according to the defect eliminating instruction.
As can be seen from the above description, the defect elimination can be performed in time, and major accidents can be avoided.
Further, the step of acquiring the state monitoring data of the power grid equipment by the internet of things sensor and sending the state monitoring data to an application system specifically comprises the following steps:
the method comprises the steps that an Internet of things sensor collects state monitoring data of power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data;
the sensor of the Internet of things sends the state monitoring data to a convergence controller;
and the convergence controller sends the state monitoring data to an application system through a gateway.
Further, the step of "if the state monitoring data exceeds a preset alarm threshold, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid device according to the association relationship" specifically includes:
the application system judges whether the state monitoring data exceeds a preset alarm threshold value;
if so, issuing a lack elimination instruction to a convergence controller to which a lack elimination device corresponding to the power grid equipment belongs through a gateway according to the incidence relation;
and the convergence controller transmits the defect elimination instruction to the corresponding defect elimination device.
According to the description, the gathering controller and the gateway are arranged, so that the sensors of the internet of things and the defect eliminating device can be managed in a partitioned mode, and follow-up troubleshooting is facilitated.
Referring to fig. 3, the invention further provides a power grid equipment linkage defect elimination architecture based on the internet of things, which comprises power grid equipment, an internet of things sensor, a defect elimination device and an application system; the IOT sensor is arranged on the power grid equipment, the defect eliminating device is arranged on the power grid equipment or around the power grid equipment, and the application system is in communication connection with the IOT sensor and the defect eliminating device respectively;
the application system is used for storing the incidence relation between the power grid equipment and the defect eliminating device;
the Internet of things sensor is used for acquiring state monitoring data of the power grid equipment and sending the state monitoring data to an application system;
and the application system is also used for sending a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation if the state monitoring data exceeds a preset alarm threshold value.
Further, the defect eliminating device is used for eliminating the defect according to the defect eliminating instruction.
The system further comprises a convergence controller and a gateway, wherein the convergence controller is respectively in communication connection with the sensor of the Internet of things and the defect eliminating device, and the convergence controller, the gateway and the application system are in communication connection in sequence;
the sensor of the internet of things is specifically used for collecting state monitoring data of the power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data;
the Internet of things sensor is further specifically used for sending the state monitoring data to the convergence controller;
the convergence controller is specifically configured to send the state monitoring data to an application system through a gateway.
The system further comprises a convergence controller and a gateway, wherein the convergence controller is respectively in communication connection with the sensor of the Internet of things and the defect eliminating device, and the convergence controller, the gateway and the application system are in communication connection in sequence;
the application system is specifically used for judging whether the state monitoring data exceeds a preset alarm threshold value;
the application system is further specifically used for issuing a lack elimination instruction to a convergence controller in communication connection with a lack elimination device corresponding to the power grid equipment through a gateway according to the association relation if the application system is in the presence;
the convergence controller is specifically configured to issue the absence elimination instruction to the corresponding absence elimination device.
Example one
Referring to fig. 2, a first embodiment of the present invention is: a power grid equipment linkage defect elimination method based on the Internet of things is based on the power Internet of things, namely an Internet of things sensor is installed on power grid equipment, and state monitoring data of the power grid equipment can be acquired in real time; the method comprises the following steps:
s1: arranging a defect eliminating device on or around the power grid equipment; further, the installed sensor of the internet of things and the arranged defect eliminating device have a corresponding relation, such as a temperature and humidity sensor and a dehumidifying device.
S2: and associating the power grid equipment with the defect eliminating device to obtain an association relation, and storing the association relation in an application system.
S3: the sensor of the internet of things acquires state monitoring data of the power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data.
S4: and the sensor of the Internet of things sends the state monitoring data to the convergence controller.
S5: and the convergence controller sends the state monitoring data to an application system through a gateway.
S6: the application system determines whether the state monitoring data exceeds a preset alarm threshold, and if so, executes step S7.
S7: and issuing a lack elimination instruction to a convergence controller to which a lack elimination device corresponding to the power grid equipment belongs through a gateway according to the association relation.
S8: and the convergence controller transmits the defect elimination instruction to the corresponding defect elimination device.
S9: and the defect eliminating device carries out defect eliminating treatment according to the defect eliminating instruction.
For example, a temperature and humidity sensor and a dehumidifying device are installed in the power distribution ring main unit, and the temperature and humidity sensor is associated with the dehumidifying device; the temperature and humidity sensor collects the temperature tTP and the humidity tHD in the distribution ring main unit in real time, then the temperature tTP and the humidity tHD are sequentially transmitted to the application system through the convergence controller and the gateway, if the humidity tHD is greater than 55% RH or the temperature tTP is less than +5 ℃ or tTP is greater than +45 ℃, the application system generates a dehumidification defect elimination instruction, then the dehumidification device sequentially transmits the dehumidification instruction to the dehumidification device through the gateway and the convergence controller, and the dehumidification device starts to perform dehumidification until tHD is less than or equal to 55% RH or +5 ℃ is less than or equal to tTP and less than or equal to +45 ℃.
For example, a distribution transformer comprehensive monitoring device and a three-phase load unbalance adjusting device are arranged on a transformer outgoing line, the distribution transformer comprehensive monitoring device collects three-phase currents tIa, tIb and tIc of a distribution transformer and then sends the three-phase currents to an application system through a convergence controller and a gateway in sequence, the application system calculates a three-phase load unbalance rate tULR according to a formula of (maximum phase current-minimum phase current)/maximum phase current × 100%, namely tULR [ [ max (tIa, tIb, tIc) ]/max (tIa, tIb, tIc) ]/max (tIa, tIb, tIc)% 100 ], and then the application system generates a three-phase load adjustment defect eliminating instruction and sends the three-phase load adjustment instruction to the three-phase load unbalance adjusting device through the gateway and the convergence controller in sequence, and the three-phase load unbalance adjusting device starts to adjust until the tULR is less than or equal to 15%.
The method is based on the power internet of things, and can acquire the state monitoring data of the power grid equipment in real time through the internet of things sensor and monitor the running state and running environment state of the power grid equipment in real time; through setting up the disappearance device on electric wire netting equipment or around electric wire netting equipment, when discovering the state anomaly, the accessible starts the corresponding disappearance device and carries out the disappearance processing in time, can effectively improve the security of electric wire netting operation, avoids secondary major accident to take place.
Example two
Referring to fig. 3, the present embodiment is a linked absence framework of a power grid device based on the internet of things corresponding to the first embodiment, and includes a power grid device 100, an internet of things sensor 200, an absence eliminating device 300, and an application system 400; the internet of things sensor 200 is arranged on the power grid equipment 100, the defect eliminating device 300 is arranged on the power grid equipment 100 or around the power grid equipment 100, and the application system 400 is in communication connection with the internet of things sensor 200 and the defect eliminating device 300 respectively;
the application system is used for storing the incidence relation between the power grid equipment and the defect eliminating device;
the Internet of things sensor is used for acquiring state monitoring data of the power grid equipment and sending the state monitoring data to an application system;
and the application system is also used for sending a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation if the state monitoring data exceeds a preset alarm threshold value.
Further, the defect eliminating device is used for eliminating the defect according to the defect eliminating instruction.
Further, as shown in fig. 4, the system further includes a convergence controller 500 and a gateway 600, the convergence controller 500 is respectively in communication connection with the internet of things sensor 200 and the defect eliminating device 300, and the convergence controller 500, the gateway 600 and the application system 400 are in communication connection in sequence;
the sensor of the internet of things is specifically used for collecting state monitoring data of the power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data;
the Internet of things sensor is further specifically used for sending the state monitoring data to the convergence controller;
the convergence controller is specifically configured to send the state monitoring data to an application system through a gateway.
Further, the application system is specifically configured to determine whether the state monitoring data exceeds a preset alarm threshold;
the application system is further specifically used for issuing a lack elimination instruction to a convergence controller in communication connection with a lack elimination device corresponding to the power grid equipment through a gateway according to the association relation if the application system is in the presence;
the convergence controller is specifically configured to issue the absence elimination instruction to the corresponding absence elimination device.
In summary, according to the power grid equipment linkage defect elimination method and the framework thereof based on the internet of things, provided by the invention, based on the power internet of things, the state monitoring data of the power grid equipment can be acquired in real time through the internet of things sensor, and the running state and the running environment state of the power grid equipment can be monitored in real time; through setting up the disappearance device on electric wire netting equipment or around electric wire netting equipment, when discovering the state anomaly, the accessible starts the corresponding disappearance device and carries out the disappearance processing in time, can effectively improve the security of electric wire netting operation, avoids secondary major accident to take place.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (6)
1. A power grid equipment linkage defect eliminating method based on the Internet of things is characterized by comprising the following steps:
associating power grid equipment with a defect eliminating device to obtain an association relation, and storing the association relation in an application system, wherein the defect eliminating device is arranged on or around the power grid equipment;
the method comprises the steps that an Internet of things sensor collects state monitoring data of the power grid equipment and sends the state monitoring data to an application system, and the Internet of things sensor is arranged on the power grid equipment;
if the state monitoring data exceed a preset alarm threshold value, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relation;
and the defect eliminating device carries out defect eliminating treatment according to the defect eliminating instruction.
2. The power grid equipment linkage defect eliminating method based on the Internet of things of claim 1, wherein the step of acquiring state monitoring data of the power grid equipment by using the Internet of things sensor and sending the state monitoring data to an application system specifically comprises the following steps:
the method comprises the steps that an Internet of things sensor collects state monitoring data of power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data;
the sensor of the Internet of things sends the state monitoring data to a convergence controller;
and the convergence controller sends the state monitoring data to an application system through a gateway.
3. The power grid equipment linkage defect elimination method based on the internet of things according to claim 1, wherein if the state monitoring data exceeds a preset alarm threshold, the application system sends a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the association relationship specifically comprises the following steps:
the application system judges whether the state monitoring data exceeds a preset alarm threshold value;
if so, issuing a lack elimination instruction to a convergence controller to which a lack elimination device corresponding to the power grid equipment belongs through a gateway according to the incidence relation;
and the convergence controller transmits the defect elimination instruction to the corresponding defect elimination device.
4. A power grid equipment linkage defect elimination framework based on the Internet of things is characterized by comprising power grid equipment, an Internet of things sensor, a defect elimination device and an application system; the IOT sensor is arranged on the power grid equipment, the defect eliminating device is arranged on the power grid equipment or around the power grid equipment, and the application system is in communication connection with the IOT sensor and the defect eliminating device respectively;
the application system is used for storing the incidence relation between the power grid equipment and the defect eliminating device;
the Internet of things sensor is used for acquiring state monitoring data of the power grid equipment and sending the state monitoring data to an application system;
the application system is further used for sending a defect elimination instruction to a defect elimination device corresponding to the power grid equipment according to the incidence relation if the state monitoring data exceed a preset alarm threshold;
and the defect eliminating device is used for eliminating the defect according to the defect eliminating instruction.
5. The Internet of things-based power grid equipment linkage defect eliminating architecture as claimed in claim 4, further comprising a convergence controller and a gateway, wherein the convergence controller is respectively in communication connection with the Internet of things sensor and the defect eliminating device, and the convergence controller, the gateway and the application system are in sequential communication connection;
the sensor of the internet of things is specifically used for collecting state monitoring data of the power grid equipment, wherein the state monitoring data comprise operation state data and operation environment data;
the Internet of things sensor is further specifically used for sending the state monitoring data to the convergence controller;
the convergence controller is specifically configured to send the state monitoring data to an application system through a gateway.
6. The Internet of things-based power grid equipment linkage defect eliminating architecture as claimed in claim 4, further comprising a convergence controller and a gateway, wherein the convergence controller is respectively in communication connection with the Internet of things sensor and the defect eliminating device, and the convergence controller, the gateway and the application system are in sequential communication connection;
the application system is specifically used for judging whether the state monitoring data exceeds a preset alarm threshold value;
the application system is further specifically used for issuing a lack elimination instruction to a convergence controller in communication connection with a lack elimination device corresponding to the power grid equipment through a gateway according to the association relation if the application system is in the presence;
the convergence controller is specifically configured to issue the absence elimination instruction to the corresponding absence elimination device.
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| CN103051055A (en) * | 2012-10-31 | 2013-04-17 | 国网电力科学研究院 | Convergence controller |
| WO2014024665A1 (en) * | 2012-08-08 | 2014-02-13 | 株式会社日立製作所 | Method of detecting disconnection accident in distribution system, and distribution facility management system |
| CN104155549A (en) * | 2014-08-08 | 2014-11-19 | 国家电网公司 | Treatment method and system for defects of on-line mentoring device for electric power system |
| CN105023124A (en) * | 2015-08-25 | 2015-11-04 | 国网浙江杭州市富阳区供电公司 | Transformer station defect real time research and judge method, apparatus and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014024665A1 (en) * | 2012-08-08 | 2014-02-13 | 株式会社日立製作所 | Method of detecting disconnection accident in distribution system, and distribution facility management system |
| CN103051055A (en) * | 2012-10-31 | 2013-04-17 | 国网电力科学研究院 | Convergence controller |
| CN104155549A (en) * | 2014-08-08 | 2014-11-19 | 国家电网公司 | Treatment method and system for defects of on-line mentoring device for electric power system |
| CN105023124A (en) * | 2015-08-25 | 2015-11-04 | 国网浙江杭州市富阳区供电公司 | Transformer station defect real time research and judge method, apparatus and system |
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