CN102005815B - Intelligent detection system and detection method of press plate position - Google Patents
Intelligent detection system and detection method of press plate position Download PDFInfo
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- CN102005815B CN102005815B CN2009101949357A CN200910194935A CN102005815B CN 102005815 B CN102005815 B CN 102005815B CN 2009101949357 A CN2009101949357 A CN 2009101949357A CN 200910194935 A CN200910194935 A CN 200910194935A CN 102005815 B CN102005815 B CN 102005815B
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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
- Y04S40/124—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 wired telecommunication networks or data transmission busses
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Abstract
The invention discloses an intelligent detection system and a detection method of press plate positions. The system comprises at least two intelligent press plates, a repeater and an upper computer, wherein all the intelligent press plates are connected in a cascaded mode and upload self position information to the repeater through a bus network; the repeater is connected with the upper computer in a network mode and used for transmitting the position information of all the intelligent press plates through a network; and the detection system is used for monitoring the real-time on-off states of the intelligent press plates and recording historical running data and can be further upgraded into an expert system for running the press plates. The invention solves the problem of position monitoring of control/tripping press plates of a relay protection system in a power system, realizes the automation of the monitoring of the press plate positions, can accurately reflect the positions of the press plates in real time and avoid error press plate on-off caused by artificial factors, eliminates safe accident hidden troubles caused by error press plate on-off, achieves scientific prevention before accidents and greatly improves the running safety of a power grid.
Description
Technical field
The invention belongs to the power system device field, relate to a kind of pressing plate position intelligent checking system and detection method of electric control appliance.
Background technology
" electrical production, safety first ", the safe operation of relaying protection system be the most important safety guarantee of electric power system, and the safe operation of relevant device is even more important in the relaying protection system.Because the particularity of equipment such as protective relaying device, in trip(ping) circuit, " pressing plate " that must design is the important leverage means of guaranteeing relaying protection system safe operation and personal security.This pressing plate is a cut-off point that naked eyes are visual; but be convenient to the whether jumping/closing coil of coupling cock (circuit breaker) of jumping/combined floodgate circuit that the operations staff judges protective relaying device; for maintenance, operation provide great convenience; but also make in the relaying protection system of transformer station, having increased by one can not be by the cut-off point of computer remote monitoring.
Because of the particularity of relaying protection tripping operation pressing plate, under the normal condition when trip signal (no), pressing plate main circuit both sides are can not the while charged.The throwing of pressing plate is moved back by manual operation, checks on by operations staff's sense of responsibility, actual techniques level fully.So in actual motion, throw because of pressing plate and to move back improperly, cause the phenomenon that protection system can not correct behavior to happen occasionally.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can detect automatically and show that pressing plate throws electric relay protection equipment pressure plate position intelligent checking system and the detection method of the state that moves back.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A kind of pressing plate position intelligent checking system comprises at least 2 intelligent pressing plates, repeater and host computers; The mode of described each intelligent pressing plate employing cascade links to each other, and repeater detects and the address that disposes each intelligent pressing plate automatically when powering on, and by bus network the positional information of each intelligent pressing plate is uploaded to repeater; Described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate; Described host computer links to each other with described repeater, moves back state in order to the throwing of monitoring described intelligent pressing plate.
As a preferred embodiment of the present invention, described bus network is the SPI network, or the IIC network, or the TXD/RXD network, or the LIN bus network, or the CAN network, or the M-BUS bus network, or Ethernet, or the ProfiBus network, or fieldbus networks.
As another kind of preferred version of the present invention, described detection system also is connected with a control flow, and described host computer is connected with N repeater; Described host computer is provided with monitoring system, sets logic and the rule that intelligent pressing plate drops in order to the scene, judges that automatically the position of described intelligent pressing plate and the pressing plate that control flow is set drop into rule and whether mate, and realizes warning function.
As another preferred version of the present invention, described host computer is PC or protective relaying device or measure and control device.
As another preferred version of the present invention, described intelligent pressing plate comprises the pressing plate main circuit, induction installation, and measuring circuit, display unit: described pressing plate main circuit is in order to control the switching of electric major loop; Induction installation is in order to respond to the on off operating mode of pressing plate; Measuring circuit is in order to receive the information that described induction installation is sensed; Display unit shows the pressing plate position according to the output of measuring circuit.
As another preferred version of the present invention, described display unit is LED.
As another preferred version of the present invention, the network that described positional information with each intelligent pressing plate transfers to host computer is the RS485 network.
As another preferred version of the present invention, the network that described positional information with each intelligent pressing plate transfers to host computer is Ethernet.
As another preferred version of the present invention, the network that described positional information with each intelligent pressing plate transfers to host computer is the CAN network.
The detection method of a kind of pressing plate position intelligent checking system may further comprise the steps:
Step 1, repeater automatically detects the address with each intelligent pressing plate of configuration when powering on, and each intelligent pressing plate will collect, and the positional information of self uploads to repeater by bus network;
Step 2, described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate again;
Step 3, judges that the throwing of each intelligent pressing plate moves back state at described host computer record, and will record the result and return to repeater by network;
Step 4, described repeater is transmitted to each intelligent pressing plate with the record result of host computer passback by bus network.
As a preferred embodiment of the present invention, repeater detects and the address that disposes each intelligent pressing plate automatically when powering on, and does not need manual setting.
As another kind of preferred version of the present invention, described testing result shows by the LED on the intelligent pressing plate.
As another preferred version of the present invention, the throwing state of moving back of described each intelligent pressing plate comprises connected state, off-state and three kinds of situations of virtual connection state.
Beneficial effect of the present invention: the position that it has solved the control/tripping operation pressing plate of relay protection of power system system monitors problem; the position that can reflect pressing plate accurately and real-time; the pressing plate miscarrying of avoiding human factor to cause is moved back; thereby eliminated because pressing plate miscarries and moved back the security incident hidden danger that causes; reached the preceding science prevention of accident; realize the automation of pressing plate management, greatly improved the fail safe of operation of power networks, adapted to the demand for development of intelligent grid.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the schematic diagram of pressing plate of the present invention position intelligent checking system;
Fig. 2 is the fractionation structural representation of intelligent pressing plate among the embodiment two;
Fig. 3 is the fractionation structural representation of intelligent pressing plate among the embodiment three.
The primary clustering symbol description:
11, nut; 12, handle;
13, brace; 14, pad;
15, transducer; 16, copper post;
17, location-plate; 18, measuring circuit;
19, fixed cover; 21, handle;
22, panel; 23, support;
24, measuring circuit; 25, induction installation.
Embodiment
The invention discloses a kind of pressing plate position intelligent checking system and detection method.
Embodiment one
The invention provides a kind of pressing plate position intelligent checking system, as shown in Figure 1, comprise at least 2 intelligent pressing plates, repeater and host computers; The mode of described each intelligent pressing plate employing cascade links to each other, and repeater detects and the address that disposes each intelligent pressing plate automatically when powering on, and by bus network the positional information of each intelligent pressing plate is uploaded to repeater; Described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate; Described host computer links to each other with described repeater, moves back state in order to the throwing of monitoring described intelligent pressing plate.
Described bus network is the SPI network, or the IIC network, or the TXD/RXD network, or the LIN bus network, or the CAN network, or the M-BUS bus network, or Ethernet, or the ProfiBus network, or fieldbus networks.Described host computer is connected with a plurality of repeaters; Described host computer is provided with monitoring system, sets logic and the rule that intelligent pressing plate drops in order to the scene, judges that automatically the position of described intelligent pressing plate and the pressing plate that control flow is set drop into rule and whether mate, and realizes warning function.Described host computer is PC or protective relaying device or measure and control device.Described intelligent pressing plate comprises the pressing plate main circuit, induction installation, and measuring circuit, display unit: described pressing plate main circuit is in order to control the switching of electric major loop; Induction installation is in order to respond to the on off operating mode of pressing plate; Measuring circuit is in order to receive the information that described induction installation is sensed; Display unit shows the pressing plate position according to the output of measuring circuit.Described display unit is LED.The network that described positional information with each intelligent pressing plate transfers to host computer is the RS485 network, the MODBUS agreement that described network of network agreement is the RS485 network.The network that described positional information with each intelligent pressing plate transfers to host computer is Ethernet, and described network of network agreement is the IEC60870-103 agreement.
The detection method of a kind of pressing plate position intelligent checking system may further comprise the steps:
Step 1, repeater automatically detects the address with each intelligent pressing plate of configuration when powering on, and each intelligent pressing plate will collect, and the positional information of self uploads to repeater by bus network;
Step 2, described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate again;
Step 3, described host computer is monitored the throwing of each intelligent pressing plate and is moved back state, and monitoring result is returned to repeater by network;
Step 4, described repeater is transmitted to each intelligent pressing plate with the monitoring result of host computer passback by bus network.
Repeater detects and the address that disposes each intelligent pressing plate automatically when powering on, and does not need manual setting.Described monitoring result shows by the LED on the intelligent pressing plate.The throwing state of moving back of described each intelligent pressing plate comprises connected state, off-state and three kinds of situations of virtual connection state.
The basic principle of intelligence pressing plate is: use the non electrical quantity principle, realize the supervision to the pressing plate position.When pressing plate drops into or withdraws from, can be by distant place real time monitoring, and show in the distance and on the spot the real-time status of pressing plate on the pressing plate simultaneously.After the intelligent pressing plate expert system software of supporting host computer, constituted complete intelligent platen system.This system can generate the pressing plate runtime database, realizes the senior application functions of database such as the inquiry in real time of a distant place, pressing plate position, the inquiry of historical data, report generation, automatic plate press state are checked, incorrect work alarm.Can realize that pressing plate is thrown and move back the preview function, realize dropping into the preview of logic at PC, and reach pressing plate down, pointed out at pressing plate (preview by after need to throw the pressing plate that moves back, the LED of corresponding pressing plate glimmers).
Described host computer is PC or protective relaying device or measure and control device or fault message substation etc.Described bus network is to use simple electrical network, adopt the mode of cascade that the positional information of each pressing plate is uploaded to repeater, pass through RS485 network MODBUS protocol transmission again to host computer, realize functions such as demonstration, record, printing, also can be by WEB latticed form or the issue of SMS form.The positional information of himself that the intelligence pressing plate can receive that repeater transmits is presented on the LED.Described intelligent pressing plate has the pressing plate main circuit, in order to control the switching of electric major loop; Induction installation is in order to respond to the on off operating mode of pressing plate; Measuring circuit is in order to receive the information that described induction installation is sensed.Display unit according to the output of measuring circuit, shows the pressing plate position.Repeater further is connected with host computer, uploads the signal that intelligent pressing plate is thrown the state that moves back, and receives distant place control signal.Host computer is provided with monitoring system, in order to set logic and the rule that intelligent pressing plate drops into, whether the pressing plate that the position of automatically judging described intelligent pressing plate and control flow are set drops into rule and mates, thereby realizes that the preview function is moved back in the pressing plate throwing and pressing plate miscarries the warning function that moves back.
Described intelligent pressing plate comprises brace 13 as shown in Figure 2, and described brace 13 is provided with transducer 15, and described induction installation is known the position of brace 13 by the position of inductive pick-up 15; The middle part is provided with handle 12 above the described brace 13, and described handle 12 is the handle that insulate with brace 13; Described brace 13 1 ends are provided with running-on, and the other end is provided with bayonet socket.Be provided with the LED of the on off operating mode that shows described brace 13 in the measuring circuit 18, described intelligent pressing plate also comprises photron, is presented on the intelligent clamp surface in order to the light that described LED is sent.A location-plate 17 is extended at the lateral surface top of the fixed cover 19 corresponding with the running-on on the brace 13.During loosen nut 11, the bayonet socket of described brace 13 and copper post 16 breaks away from, and this moment, described brace 13 can be around described running-on rotation, blocked motionlessly when rotating to certain angle by described location-plate 17, and this moment, brace 13 was in complete off-state.
The method of operation of present embodiment is:
When pressing plate disconnects, brace 13 fixing leaning against on the location-plate 17, this moment, the host computer monitoring was off-state, the LED on the intelligent pressing plate lights up as green simultaneously, can assert it is off-state;
When pressing plate needed closure, brace 13 was from disconnecting lay down location, and 60 degree turn clockwise, the bayonet socket of brace 13 just in time enters between two bowl-type rubber pad sheets 14, this moment, the ipc monitor state was shown as the virtual connection state, and the yellow led on the intelligent pressing plate is bright, and the prompting field operator operates wrong; Continuation is tightened two nuts 11 and is put in place, and it is bright that this moment, LED became redness, and host computer shows closure state;
When pressing plate need disconnect, operating personnel unclamped nut 11, and this moment, brace 13 was in connected state, but contact is not intact, and this moment, the ipc monitor state was shown as virtual connection, and fault is namely arranged, and can report to the police; LED on the intelligent pressing plate of while transfers to yellow bright, and prompting operation is wrong; Continue brace 13 is rotated counterclockwise 60 degree, be placed on the location-plate 17, this moment, host computer was shown as complete off-state; The LED of intelligence on the pressing plate transfers to green bright, can judge intuitively that pressing plate is in legal off-state, and and the state consistency judged of host computer.
Host computer of the present invention has the expert database of real time execution, can be according to the concrete configuration of control flow, and judge by system that intelligent pressing plate is thrown and whether correctly move back, in time report to the police for incorrect operational mode, avoid occurring accident, improve the fail safe of operation of power networks.The auxiliary element that the present invention also can be used as relaying protection and measure and control device uses.Protective relaying device can read back the state measurement position of pressing plate, thereby open cycle system is become closed-loop system, further improves transformer station's control system.
Intelligent pressing plate among the present invention adopts the wiring of 24V network mode, solved the interference problem that general network is subject to electromagnetism.And host computer or background system read in the opened and closed positions of each intelligent pressing plate in real time by network (RS485 net or Ethernet or CAN net).The address of each intelligent pressing plate is distributed automatically by repeater, has saved a large amount of workloads, has stronger practicality.Do not have the hardware adjustable circuit on the intelligence pressing plate, all intelligent pressing plate hardware are identical.When any one intelligent pressing plate damages, can directly replace.Behind the pressing plate that original position more renews, system disposes automatically, needn't manually participate in, and the function after the configuration is compared without any variation with original function.Host computer reads in the open and-shut mode of each pressing plate in real time, and the LED on the pressing plate also shows the state that host computer is confirmed in real time.Any intelligent pressing plate is not worked or is damaged in system's running, and system can report to the police automatically, and prompting is in time changed, and does not influence the operate as normal of other intelligent pressing plates.The operational mode of intelligent pressing plate and common pressing plate are identical among the present invention, and operating standard needn't be done any change.The present invention is the carrying out of " very quiet " behind the scenes to the supervision of pressing plate run location, and pressing plate is thrown and to be moved back when correct, and the quiet persistent surveillance of host computer when incorrect, is in time reported to the police by setting means.
The position that the invention solves the control/tripping operation pressing plate of relay protection of power system system monitors problem; successfully realized the remote monitoring of pressing plate position; the position that can reflect pressing plate accurately and real-time; the pressing plate miscarrying of avoiding human factor to cause is moved back; thereby eliminated because pressing plate miscarries and moved back the security incident hidden danger that causes; reach the preceding science prevention of accident, greatly improved the fail safe of operation of power networks, adapted to the demand for development of intelligent grid.
Embodiment two
The difference of present embodiment and embodiment one is that described intelligent pressing plate comprises handle 21, panel 22, support 23, measuring circuit 24 and induction installation 25 as shown in Figure 3.Described handle 21 is in order to control the break-make of described intelligent pressing plate major loop; Described panel 22 is positioned at the middle part of described intelligent pressing plate, fixing described handle 21; Described support 23 links to each other with described handle 21 by described panel 22; Described induction installation 25 is in order to respond to the on off operating mode of described handle 21; Described measuring circuit 24 is in order to receive the information that induction installation is sensed.Described handle is provided with reference column in the middle of the bottom, and the reference column two ends are provided with the copper post.Described panel 22 is the grooved positioning panel, and the centre of grooved positioning panel is provided with the location hole with reference column phase fit, and the two ends of grooved positioning panel are provided with the make position hole with described copper post phase fit, the other open position hole that is provided with, make position hole; Make position hole and open position hole are centrosymmetric about location hole.
The method of operation of present embodiment is:
When needs disconnect, handle 21 is pulled out from the make position hole, be rotated counterclockwise 30 degree, insert in the open position hole, the state that this moment, host computer monitored is off-state, simultaneously the green LED on the pressing plate is bright, can assert it is off-state, and the position of the off-state of judging and the judgement position of host computer are consistent;
When needs are closed, handle 21 to be pulled out in the open position hole, 30 degree that turn clockwise insert handle in the make position hole, and firmly are pressed into to complete closure; The state that this moment, host computer monitored is closure state, and the red LED on the pressing plate is bright simultaneously, can assert it is closure state;
When the needs closure maybe needed to disconnect, because operating personnel's error does not press legal position to handle 21, or does not pull out handle 21 fully, this moment, host computer monitoring intelligent pressing plate was the virtual connection state, and fault is namely arranged, and can report to the police.Red LED and green LED on the pressing plate is alternately bright simultaneously.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here the distortion of disclosed embodiment and change is possible, and the various parts of the replacement of embodiment and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other forms, structure, layout, ratio, and realize with other elements, material and parts.
Claims (10)
1. a pressing plate position intelligent checking system is characterized in that, described system comprises at least 2 intelligent pressing plates, repeater and host computers;
Described intelligent pressing plate comprises pressing plate main circuit, induction installation, measuring circuit; Described pressing plate main circuit is in order to control the switching of electric major loop; Described induction installation is in order to respond to the on off operating mode of pressing plate; Described measuring circuit is in order to receive the information that described induction installation is sensed;
The mode of described each intelligent pressing plate employing cascade links to each other, and repeater detects and the address that disposes each intelligent pressing plate automatically when powering on, and by bus network the positional information of each intelligent pressing plate is uploaded to repeater;
Described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate;
Described host computer links to each other with described repeater, moves back state in order to the throwing of monitoring described intelligent pressing plate.
2. pressing plate according to claim 1 position intelligent checking system, it is characterized in that: described bus network is the SPI network, or IIC network, or the TXD/RXD network, or the LIN bus network, or the CAN network, or M-BUS bus network, or Ethernet, or the ProfiBus network, or fieldbus networks.
3. pressing plate according to claim 1 position intelligent checking system, it is characterized in that: described detection system also is connected with a control flow, and described host computer is connected with N repeater; Described host computer is provided with monitoring system, set logic and the rule that intelligent pressing plate drops in order to the scene, whether the pressing plate that the position of automatically judging described intelligent pressing plate and control flow are set drops into rule and mates, thereby realizes that the preview function is moved back in the pressing plate throwing and pressing plate miscarries the warning function that moves back.
4. pressing plate according to claim 1 position intelligent checking system, it is characterized in that: described host computer is PC or protective relaying device or measure and control device.
5. pressing plate according to claim 1 position intelligent checking system is characterized in that described intelligent pressing plate also comprises:
Display unit according to the output of measuring circuit, shows the pressing plate position.
6. pressing plate according to claim 5 position intelligent checking system, it is characterized in that: described display unit is LED.
7. pressing plate according to claim 1 position intelligent checking system, it is characterized in that: the network that described positional information with each intelligent pressing plate transfers to host computer is the RS485 network, or Ethernet, or the CAN network.
8. the detection method of any described pressing plate position intelligent checking system of claim 1 to 7 is characterized in that, may further comprise the steps:
Step 1, each intelligent pressing plate adopt the mode of cascade to link to each other, and repeater detects the address with each intelligent pressing plate of configuration automatically when powering on, and each intelligent pressing plate will collect, and the positional information of self uploads to repeater by bus network;
Step 2, described repeater is transmitted through the network to host computer with the positional information of each intelligent pressing plate again;
Step 3, described host computer is monitored the throwing of each intelligent pressing plate and is moved back state, and monitoring result is returned to repeater by network;
Step 4, described repeater is transmitted to each intelligent pressing plate with the monitoring result of host computer passback by bus network.
9. the detection method of pressing plate according to claim 8 position intelligent checking system is characterized in that: repeater detects the address with each intelligent pressing plate of configuration automatically when powering on, and does not need manual setting.
10. the detection method of pressing plate according to claim 8 position intelligent checking system, it is characterized in that: described monitoring result shows by the LED on the intelligent pressing plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101949357A CN102005815B (en) | 2009-09-01 | 2009-09-01 | Intelligent detection system and detection method of press plate position |
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| CN2009101949357A CN102005815B (en) | 2009-09-01 | 2009-09-01 | Intelligent detection system and detection method of press plate position |
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| CN102005815A CN102005815A (en) | 2011-04-06 |
| CN102005815B true CN102005815B (en) | 2013-07-17 |
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| CN102185385A (en) * | 2011-05-27 | 2011-09-14 | 俞琳 | System and method thereof for detecting physical on/off state of power protection circuit |
| CN103576644A (en) * | 2013-08-21 | 2014-02-12 | 国家电网公司 | Intelligent pressure plate system used for transformer substation |
| CN104716574B (en) * | 2015-03-20 | 2018-04-17 | 上海海兰电气有限公司 | Intelligent electric power pressing plate and the electric control system applied |
| CN104964636B (en) * | 2015-06-19 | 2018-09-07 | 国家电网公司 | State real-time detection method and system are moved back in a kind of throwing of electric protection device output clamping |
| CN105487002A (en) * | 2015-11-26 | 2016-04-13 | 国家电网公司 | Substation protection press plate position on-line monitoring system |
| CN105391171B (en) * | 2015-11-27 | 2017-11-21 | 江苏省电力公司电力科学研究院 | A kind of transformer station outputs pressure plate status monitoring system |
| CN108234218A (en) * | 2018-01-23 | 2018-06-29 | 华尔达（厦门）塑胶有限公司 | A kind of intelligent network connection and extended method |
| CN108471106B (en) * | 2018-04-17 | 2019-11-12 | 国网河南省电力公司电力科学研究院 | One kind is based on single mother partition mode of connection bus interval secondary anti-misoperation method and device |
| CN109831030B (en) * | 2019-01-23 | 2022-10-28 | 国网安徽省电力有限公司 | Intelligent hard pressing plate based on infrared detection, protection method and protection system |
| CN111313358B (en) * | 2020-03-18 | 2022-09-16 | 国网湖南省电力有限公司 | Double-contact scribing type relay protection pressing plate with state acquisition function |
| CN111478428B (en) * | 2020-04-29 | 2021-08-24 | 广东电网有限责任公司惠州供电局 | Method for automatically matching maintenance pressing plate of automatic bus transfer device |
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| 郑敏等.基于1WIRE总线的自动化装置压板状态监测系统设计.《电力系统保护与控制》.2009,第37卷(第6期),73-76. |
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