CN112104081A - Transformer substation secondary equipment pressing plate state online monitoring system and method - Google Patents
Transformer substation secondary equipment pressing plate state online monitoring system and method Download PDFInfo
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- CN112104081A CN112104081A CN202010970665.0A CN202010970665A CN112104081A CN 112104081 A CN112104081 A CN 112104081A CN 202010970665 A CN202010970665 A CN 202010970665A CN 112104081 A CN112104081 A CN 112104081A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00001—Circuit 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]
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00002—Circuit 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 monitoring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00006—Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00006—Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit 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 information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit 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
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- Y04S40/126—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 using wireless data transmission
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a transformer substation secondary equipment pressing plate state online monitoring system and a method, wherein the system comprises a station end pressing plate state detection module, a data uploading module, a remote state monitoring host and an error-prevention alarming module, the station end pressing plate state detection module acquires pressing plate switching-on and switching-off states and sends the pressing plate switching-on and switching-off states to the data uploading module in a wireless radio frequency mode, the data uploading module uploads the acquired pressing plate switching-on and switching-off states to the remote state monitoring host through a network, the remote state monitoring host judges whether the current pressing plate switching-on and switching-off states are correct or not according to the acquired pressing plate switching-on and switching-off states, and if abnormal conditions are found, the error-prevention alarming. The invention can reflect the working state information of the pressing plate accurately and reliably in real time, and avoids the major loss caused by the fact that the microcomputer cannot monitor and alarm in real time after the manual operation fails.
Description
Technical Field
The invention relates to a transformer substation secondary equipment pressing plate state online monitoring system.
Background
Along with the development of regulation and control integration, unmanned stations are more and more. The information and intelligence level of the dispatching system reaches a high degree. The pressure plate is important secondary equipment in the power system, and the pressure plate state is related to the safety of power transformation operation.
The management of the secondary equipment pressing plate of the transformer substation is an indispensable important link for ensuring the correct action of equipment such as relay protection, safety automatic devices and the like, the management of the operation state of the pressing plate in the power industry generally depends on-site manual inspection at present, the informatization and intelligence level is relatively low, and the requirement of an operation management mode of an intelligent power grid cannot be met.
The secondary pressing plate state of the existing transformer substation is that the pressing plate on-off condition is checked in a manual field inspection mode. Due to the characteristics of high density of the secondary equipment pressing plates in layout, integration and combination in functions and the like, the inspection omission and operation errors are easy to occur, potential safety hazards exist, and the pressing plate operation errors are more difficult to find in time after the transformer substation is unattended.
Disclosure of Invention
In order to solve the problems, the invention provides an online monitoring system for the state of a pressing plate of secondary equipment of a transformer substation, which can avoid the potential risks of misoperation, action rejection and the like of the device caused by the error of the operation and retreat of the pressing plate.
The technical scheme adopted for solving the technical problems is as follows:
on one hand, the online monitoring system for the pressing plate state of the secondary equipment of the transformer substation provided by the embodiment of the invention comprises a station end pressing plate state detection module, a data uploading module, a remote state monitoring host and an error prevention alarm module, wherein the station end pressing plate state detection module acquires the pressing plate on-off state and sends the pressing plate on-off state to the data uploading module in a wireless radio frequency mode, the data uploading module uploads the acquired pressing plate on-off state to the remote state monitoring host through a network, the remote state monitoring host judges whether the current pressing plate on-off state is correct according to the acquired pressing plate on-off state, and if the current pressing plate on-off state is abnormal, the error prevention alarm module gives an alarm.
As a possible implementation manner of this embodiment, the station-side pressing plate state detection module includes a non-contact pressing plate on/off state photodetector, the non-contact pressing plate on/off state photodetector is installed right below the pressing plate connecting sheet, and state information of whether the pressing plate is in place or not is acquired in a non-contact manner
As a possible implementation manner of this embodiment, the ID number of the non-contact platen on/off state light detector matches the detected platen association.
As a possible implementation manner of this embodiment, the remote status monitoring host receives the current pressing plate moving state in real time, verifies the current pressing plate moving state and the correct operation state of the pressing plate, performs exception handling on the current pressing plate moving state, and stores information of the pressing plate moving process.
On the other hand, the online monitoring method for the state of the pressing plate of the secondary equipment of the transformer substation, provided by the embodiment of the invention, comprises the following steps:
step 1, primarily collecting the switching state of a transformer substation secondary equipment pressure plate as the current switching state;
step 2, acquiring the switching state of a secondary equipment pressing plate of the transformer substation in real time, and comparing the switching state with the current switching state;
step 3, if the switching state of the transformer substation secondary equipment pressing plate is collected in real time and is different from the current switching state, the switching state of the transformer substation secondary equipment pressing plate is changed, and warning information is sent;
and 4, taking the switching state of the secondary equipment pressing plate of the transformer substation after the change as the current switching state, and returning to the step 2 to continuously acquire the switching state of the secondary equipment pressing plate of the transformer substation in real time.
As a possible implementation manner of this embodiment, the step 1 specifically includes: and image data of the transformer substation secondary equipment pressing plate is acquired for the first time and compared with the in-place image data of the transformer substation secondary equipment pressing plate, and the current switching state of the transformer substation secondary equipment pressing plate is determined.
As a possible implementation manner of this embodiment, the step 2 specifically includes: acquiring image data of a transformer substation secondary equipment pressing plate in real time, and comparing the image data with the current switching state image data of the transformer substation secondary equipment pressing plate;
as a possible implementation manner of this embodiment, the step 3 specifically includes: and if the image data of the transformer substation secondary equipment pressing plate collected in real time is different from the current switching state image data of the transformer substation secondary equipment pressing plate, switching the switching state of the transformer substation secondary equipment pressing plate and sending warning information.
As a possible implementation manner of this embodiment, the step 4 specifically includes: and taking the switching state of the changed transformer substation secondary equipment pressing plate as the current switching state of the transformer substation secondary equipment pressing plate, and returning to the step 2 to continuously acquire the image data of the transformer substation secondary equipment pressing plate in real time.
The technical scheme of the embodiment of the invention has the following beneficial effects:
the invention can reflect the working state information of the pressing plate accurately and reliably in real time, and avoids the major loss caused by the fact that the microcomputer cannot monitor and alarm in real time after the manual operation fails. The invention solves the contradiction between the operation and the maintenance of the existing transformer substation and the intelligent power grid, and the data link between the hard pressing plate and the intelligent power grid of the existing transformer substation effectively improves the efficiency of the state information management of the pressing plate and adapts to the development requirements of the intelligent transformer substation and the intelligent power grid. The method and the device are used for monitoring the state of the pressing plate of the secondary equipment of the transformer substation on line, operators do not need to perform on-site inspection, labor cost is saved, and working efficiency is improved.
Description of the drawings:
fig. 1 is a block diagram illustrating an online monitoring system for the pressure plate status of a secondary device of a substation according to an exemplary embodiment;
fig. 2 is a flowchart illustrating a system for online monitoring of the state of a pressure plate of a secondary device of a substation according to an exemplary embodiment.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
in order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and procedures are omitted so as to not unnecessarily limit the invention.
As shown in fig. 1, the online monitoring system for the pressing plate state of the secondary equipment of the transformer substation provided by the embodiment of the invention comprises a station-end pressing plate state detection module, a data uploading module, a remote state monitoring host and an anti-error warning module, wherein the station-end pressing plate state detection module acquires the pressing plate on-off state and sends the pressing plate on-off state to the data uploading module in a wireless radio frequency manner, the data uploading module uploads the acquired pressing plate on-off state to the remote state monitoring host through a network, the remote state monitoring host judges whether the current pressing plate on-off state is correct according to the acquired pressing plate on-off state, and if abnormal is found, the anti-error warning module gives an alarm.
As a possible implementation manner of this embodiment, the station-side pressing plate state detection module includes a non-contact pressing plate on/off state photodetector, the non-contact pressing plate on/off state photodetector is installed right below the pressing plate connecting sheet, and state information of whether the pressing plate is in place or not is acquired in a non-contact manner
As a possible implementation manner of this embodiment, the ID number of the non-contact platen on/off state light detector matches the detected platen association.
As a possible implementation manner of this embodiment, the remote status monitoring host receives the current pressing plate moving state in real time, verifies the current pressing plate moving state and the correct operation state of the pressing plate, performs exception handling on the current pressing plate moving state, and stores information of the pressing plate moving process.
As shown in fig. 2, the method for online monitoring the state of the pressure plate of the secondary equipment of the transformer substation provided by the embodiment of the invention comprises the following steps:
step 1, image data of a transformer substation secondary equipment pressing plate is collected for the first time and compared with the in-place image data of the transformer substation secondary equipment pressing plate, and the current switching state of the transformer substation secondary equipment pressing plate is determined.
And 2, acquiring image data of the transformer substation secondary equipment pressing plate in real time, and comparing the image data with the current on-off state image data of the transformer substation secondary equipment pressing plate.
And 3, if the image data of the transformer substation secondary equipment pressing plate collected in real time is different from the current switching state image data of the transformer substation secondary equipment pressing plate, switching the switching state of the transformer substation secondary equipment pressing plate and sending warning information.
And 4, taking the switching state of the changed transformer substation secondary equipment pressing plate as the current switching state of the transformer substation secondary equipment pressing plate, and returning to the step 2 to continuously acquire the image data of the transformer substation secondary equipment pressing plate in real time.
The system solves the problem of real-time monitoring of the position of the pressure plate of secondary equipment such as power system relay protection and the like, realizes automation of monitoring of the position of the pressure plate by utilizing computer light detection and network communication technologies, and avoids risks of misoperation, action rejection and the like caused by the fact that a microcomputer cannot monitor real-time alarm after manual operation fails.
The device for monitoring the secondary equipment functions of the transformer substation such as relay protection, backup switching and low-frequency load shedding and the state of the pressure plate such as an outlet on line in real time establishes a data link between the hard pressure plate and the intelligent power grid of the conventional transformer substation, and avoids the risk potential hazards of misoperation, action rejection and the like of the device caused by the switching and withdrawing errors of the pressure plate.
The invention discloses an online monitoring system for the pressing plate state of secondary equipment of a transformer substation, which is a device for monitoring the functions of secondary equipment of relay protection, backup switching, low-frequency load shedding and the like of the transformer substation, and the pressing plate state of an outlet and the like in an online real-time manner.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (9)
1. The utility model provides a transformer substation's secondary equipment clamp plate state on-line monitoring system, characterized by, includes station end clamp plate state detection module, data upload module, remote status monitoring host computer and prevents mistake warning module, station end clamp plate state detection module gathers the clamp plate and throws back the state to send the data upload module with radio frequency's mode, the data upload module is thrown the state of moving back the clamp plate of gathering and is uploaded to remote status monitoring host computer through the network, remote status monitoring host computer judges whether current clamp plate is thrown and moves back the state according to the clamp plate of gathering, if discover unusual then report an emergency and ask for help or increased vigilance through preventing mistake warning module.
2. The transformer substation secondary equipment pressing plate state online monitoring system according to claim 1, wherein the station end pressing plate state detection module comprises a non-contact pressing plate on-off state light detector, the non-contact pressing plate on-off state light detector is installed right below a pressing plate connecting sheet, and state information of whether a pressing plate is in place or not is acquired in a non-contact mode.
3. The substation secondary equipment platen state online monitoring system of claim 2, wherein the ID number of the non-contact platen on/off state light detector is matched in association with the platen it detects.
4. The transformer substation secondary equipment pressing plate state online monitoring system according to any one of claims 1 to 3, wherein the remote state monitoring host receives the current pressing plate on-off state in real time, verifies the current pressing plate on-off state with the correct operation state of the pressing plate, performs exception handling on the current pressing plate on-off state, and simultaneously stores pressing plate on-off process information.
5. A transformer substation secondary equipment pressing plate state online monitoring method is characterized by comprising the following steps:
step 1, primarily collecting the switching state of a transformer substation secondary equipment pressure plate as the current switching state;
step 2, acquiring the switching state of a secondary equipment pressing plate of the transformer substation in real time, and comparing the switching state with the current switching state;
step 3, if the switching state of the transformer substation secondary equipment pressing plate is collected in real time and is different from the current switching state, the switching state of the transformer substation secondary equipment pressing plate is changed, and warning information is sent;
and 4, taking the switching state of the secondary equipment pressing plate of the transformer substation after the change as the current switching state, and returning to the step 2 to continuously acquire the switching state of the secondary equipment pressing plate of the transformer substation in real time.
6. The transformer substation secondary equipment pressing plate state online monitoring method according to claim 5, wherein the step 1 specifically comprises: and image data of the transformer substation secondary equipment pressing plate is acquired for the first time and compared with the in-place image data of the transformer substation secondary equipment pressing plate, and the current switching state of the transformer substation secondary equipment pressing plate is determined.
7. The transformer substation secondary equipment pressing plate state online monitoring method according to claim 5, wherein the step 2 specifically comprises: and acquiring image data of the transformer substation secondary equipment pressing plate in real time, and comparing the image data with the current switching state image data of the transformer substation secondary equipment pressing plate.
8. The transformer substation secondary equipment pressing plate state online monitoring method according to claim 5, wherein the step 3 specifically comprises: and if the image data of the transformer substation secondary equipment pressing plate collected in real time is different from the current switching state image data of the transformer substation secondary equipment pressing plate, switching the switching state of the transformer substation secondary equipment pressing plate and sending warning information.
9. The transformer substation secondary equipment pressing plate state online monitoring method according to claim 5, wherein the step 4 specifically comprises: and taking the switching state of the changed transformer substation secondary equipment pressing plate as the current switching state of the transformer substation secondary equipment pressing plate, and returning to the step 2 to continuously acquire the image data of the transformer substation secondary equipment pressing plate in real time.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010970665.0A CN112104081A (en) | 2020-09-15 | 2020-09-15 | Transformer substation secondary equipment pressing plate state online monitoring system and method |
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| CN202010970665.0A CN112104081A (en) | 2020-09-15 | 2020-09-15 | Transformer substation secondary equipment pressing plate state online monitoring system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113011765A (en) * | 2021-03-30 | 2021-06-22 | 广东电网有限责任公司电力调度控制中心 | Reliability assessment method for remotely modifying relay protection setting value |
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