CN102255393A - Ground wire hanging anti-error blocking system and method thereof - Google Patents
Ground wire hanging anti-error blocking system and method thereof Download PDFInfo
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- CN102255393A CN102255393A CN2011102166366A CN201110216636A CN102255393A CN 102255393 A CN102255393 A CN 102255393A CN 2011102166366 A CN2011102166366 A CN 2011102166366A CN 201110216636 A CN201110216636 A CN 201110216636A CN 102255393 A CN102255393 A CN 102255393A
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Abstract
The invention discloses a ground wire hanging anti-error blocking system and method. The system disclosed by the invention mainly comprises a ground wire hanging inductor, a ground wire electronic signboard, a ground wire signal acquisition unit, a ground wire management terminal, a ground wire signal fail-safe interface machine and a dispatching (centralized control station) anti-error monitoring terminal. According to the method disclosed by the invention, by utilizing the system disclosed by the invention, ground wire hanging state detection and hanging anti-error blocking can be carried out through devices and programme software in the invention; functions of detection, storage, analysis, display, inquiry and blocking signal output in a use state and a hanging state of the ground wire can be realized; the system and the method disclosed by the invention can be widely applicable to the ground wire management and hanging anti-error blocking in equipment overhaul places, such as power stations, converting stations, distribution substations and the like; and electric equipment and worker safety are ensured.
Description
Technical field
The invention belongs to electric power system substation equipment maintenance and repair security maintenance technical field, particularly anti-error detection management of ground wire hitching and five-preventing system improving method.
Background technology
Safe and reliable each aspect concerning national economy of power system operation, wherein the safe and reliable operation of transformer station is again the most important thing.The safe operation of electric power system, transformer station be requirement be in operation support equipment and the person safety.
When substation equipment maintenance and repair, in order to protect operator safety, all need to adopt the technology of temporary ground wire, temporary ground wire is articulated on the buried ground stud of an end, be used for the time electric current being imported undergroundly when electric leakage, guarantee safety of workers.This temporary ground wire is the important tool that substation equipment maintenance and repair and Operation and Maintenance department are used to protect the person and device security.Earth connection is omitted scene or improper use, may cause switching on earth wire or personal injury accident serious accident.The unprotect accident that the pernicious misoperation fault of prevention switching on earth wire, the loose contact of prevention ground wire cause is the main anti-error content that earth connection uses.
Such as the scene in operation during temporary ground wire, behind the anti-error monitoring terminal simulation of existing microcomputer scheduling (concentrator station) subpoena, operating personnel take the earth connection of permission away, after the step that shows according to computer key is opened the ground stud lockset, if operating personnel are retained in the scene with earth connection and do not install, take away because of earth connection, open the step of ground stud lockset and also pass through, after the computer key back delivery operations task, system will think earth connection by mistake, and oneself installs.Need to indicate the numbering of installing earth connection place earth connection on first kind of work ticket of power transformation grid switching operation bill and power transformation, if certain operation needs installing 2 groups and above earth connection, during practical operation, operating personnel are attached to the earth connection of other groups the operation of this step and need that system can't discern on the ground stud of installing earth connection mistakenly, give tacit consent to this step and operate and correctly finish.
And there is following problem in existing microcomputer " five anti-" system to the management of temporary ground wire:
1) existing " five is anti-" system can not solve the safe dismounting problem of temporary ground wire, makes existing anti-error system have security breaches, causes the switching on earth wire behavior in time not found and to prevent;
2) existing " five is anti-" system can not be used for the security monitoring of overhaul of the equipments, and the overhaul of the equipments earth connection that finishes may not removed fully, and for having when all being mounted with earth connection in the middle of many windings ground wire and circuit two ends or the circuit, earth connection is removed in easier omission especially;
3) earth connection and " five is anti-" system's self working state can't feed back to the scheduling operation personnel, make the dispatcher can not fully grasp field condition, may cause mistake to be issued orders;
4) reliability of " five anti-" system's equipment of itself also has problems, and for example lockset corrosion etc. causes behavior such as release by force to take place.
According to State Grid Corporation of China's statistics, the electric fault-operation accident relevant with temporary ground wire accounts for 60% of misoperation fault sum.
Summary of the invention
At above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is, overcome existing " five is anti-" system and can not solve the safe dismounting problem of temporary ground wire, and existing " five is anti-" system can not be used for the security monitoring of overhaul of the equipments, can't feed back to the dispatcher with earth connection and " five is anti-" system's self working state, make the dispatcher can not fully grasp field condition, may cause mistake problem such as issue orders, and provide a kind of ground wire hitching anti-error locking system and method thereof, realization is to the temporary ground wire user mode and articulate the status detection supervision, and the signal that detects linked to each other with transformer station existing five-preventing system, automatically generate the signal of locking or open switching manipulation according to the situation that articulates of earth connection, and deliver to five anti-interface message processor (IMP)s, finish locking or the opening that related switch is operated by five-preventing system.
In order to solve the technical problem, the technical solution used in the present invention is: a kind of ground wire hitching anti-error locking system mainly comprises earth connection inductor, earth connection electronic mark board, ground line signals collecting unit, earth connection office terminal, ground line signals five anti-interface message processor (IMP) and the anti-error monitoring terminals of scheduling (concentrator station).
Earth connection electronic mark board and ground wire hitching inductor adopt the short-distance wireless communication mode to transmit information with the ground line signals collecting unit respectively.Ground line signals collecting unit, earth connection office terminal, ground line signals five prevent interface message processor (IMP)s and dispatch anti-error monitoring terminal transmitting information by the wire communication mode successively.The major function of system is the user mode information (being at the managing security tools and instruments storehouse or in the switch station) of identification earth connection, the identification earth connection articulate state information (whether be connected and whether take off) from ground stud with ground stud, and send or cancel the circuit breaker lock signal by five-preventing system according to the detected state that articulates.
Further, employed earth connection electronic mark board is fixed on the earth connection, employed a plurality of ground line signals collecting unit is installed in managing security tools and instruments storehouse and switch station respectively by numbering, and forms the corresponding ground line signals collecting unit numbering and the mapping of present position; Gather earth connection present position information by the ground line signals collecting unit, and upload to the earth connection office terminal, the earth connection office terminal judges by the numbering of the earth connection collecting unit uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection.
Further, the ground wire hitching inductor of employed detection ground stud and ground wire hitching state, comprise shell, its characteristics are, be provided with battery in the described shell, shell is provided with out line jack and fixedlys connected screw, is electrically connected to out line jack behind indicator light of positive pole series connection of battery, and the negative pole of battery is connected to fixedly connected screw; Simultaneously, also be provided with wireless signal transmitting device in the shell, described wireless signal transmitting device is in parallel with described indicator light.
Utilize described ground wire hitching inductor to detect whether earth connection is connected with ground stud and whether articulate state information, and send or cancel the switching manipulation block signal by five-preventing system according to the detected state that articulates from what ground stud took off.
The ground line signals collecting unit is arranged in switch station and managing security tools and instruments room, be used to gather the user mode of earth connection or articulate state information, communicate between each collecting unit and ground wire hitching inductor nearby, the earth connection electronic mark board, and the signal that ground wire hitching inductor and earth connection electronic mark board send is delivered to the ground line signals office terminal.
The earth connection office terminal manages a plurality of ground line signals collecting units, receives the data of ground line signals collecting unit, stores, analyzes, warns on the spot and the self check abnormal alarm; When earth connection is in when articulating state, signal is delivered to the anti-error monitoring terminal of scheduling (concentrator station) and five-preventing system carries out the switching manipulation locking, and provide alarm signal on the spot, prompting maintainer and local operation personnel avoid mistake to run the pass jointly.
Ground line signals five anti-interface message processor (IMP)s are finished the stipulations conversion and are served as communication interface, the earth connection block signal that the ground line signals office terminal is sent here converts the signal that the five-preventing system input requires to, mainly contain two kinds of patterns: switching value pattern and data communication mode, select according to the signal mode of the existing five-preventing system of transformer station.
The operation principle of the inventive method is: earth connection electronic mark board is fixed on the earth connection, is used for sensing earth connection user mode information (comprising earth connection numbering, position etc.); The ground wire hitching inductor is installed on ground stud or the earth connection, is used for sensing ground wire hitching state information (comprising whether articulating, whether articulate state good); The ground line signals collecting unit is installed on managing security tools and instruments storehouse and switch station, is used to gather the earth connection user mode of earth connection transducer transmission and articulate state information; The information data of ground line signals collecting unit collection is sent to the earth connection office terminal, stores, analyze, warn on the spot and the self check abnormal alarm; When earth connection is in when articulating state, signal is delivered to anti-error monitoring terminal of scheduling (concentrator station) and five-preventing system, carry out the switching manipulation locking by five-preventing system, and provide alarm signal on the spot, prompting maintainer and local operation personnel avoid mistake to run the pass jointly.
Further, the installation method of above-mentioned ground wire hitching inductor has two kinds, method one: the ground wire hitching inductor is installed on the ground stud, and the fixedly connected screw of ground wire hitching inductor adopts screw to fix and be electrically connected with ground stud; Method two: the fixedly connected screw of described ground wire hitching inductor is fixed and is connected electrically on the earth connection, and the connector of use exterior insulation will go out line jack and ground stud is electrically connected.
Carrying out the ground wire hitching condition detection method based on above-mentioned installation method is: when ground wire hitching, with the line jack that goes out on the connector insertion ground wire hitching inductor of exterior insulation, the end-fitting with earth connection inserts ground stud then; When earth connection is connected with ground stud when good, the indicator light of ground wire hitching inductor is bright, the wireless signal transmitting device startup simultaneously and " connection " information of transmission are to the ground line signals collecting unit, and be sent to the earth connection office terminal, the earth connection office terminal judges according to " connection " signal of ground line signals collecting unit transmission and the Position Number at ground line signals collecting unit place ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP)s of ground line signals five " connections " signal is carried out being sent to anti-error monitoring terminal of scheduling (concentrator station) and five-preventing system after stipulations are changed, send " locking " signal that latch switch is operated by five-preventing system; When earth connection is finished the work dismounting, the indicator light of ground wire hitching inductor extinguishes, stop simultaneously sending " connection " signal to the ground line signals collecting unit, the signal that the earth connection office terminal sends according to the ground line signals collecting unit judges that earth connection takes off from ground stud, and by the anti-interface message processor (IMP)s of ground line signals five signal is carried out being sent to the good and five-preventing system of the anti-error monitoring terminal of scheduling (concentrator station) after the stipulations conversion, cancel switching manipulation " locking " signal by five-preventing system.
Wherein, the criterion of wireless signal transmitting device startup is formula (1):
U≥U
qd (1)
U in the formula---the voltage at wireless signal transmitting device two ends;
U
Qd---the wireless signal transmitting device starting resistor;
Further, a kind of ground wire hitching anti-misoperation method utilizes anti-error system of the present invention, and device and software program by invention carry out the ground wire hitching anti-misoperation locking, and following steps are carried out in the earth connection office terminal:
(1) initiation parameter:
System is carried out initialization, finish numbering, ground line signals collecting unit numbering, transformer station's main electrical scheme diagramization demonstration of naming number, ground wire hitching inductor and the earth connection electronic mark board of earth connection etc., administration authority is set, sets user information.
(2) gather earth connection user mode information:
By being installed in the ground line signals collecting unit of managing security tools and instruments storehouse and switch station, gather the information of earth connection electronic mark board on the earth connection, with the information uploading that collects to the earth connection office terminal, the earth connection office terminal judges by the numbering of the earth connection collecting unit uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection.
(3) detect the ground wire hitching state information:
By being installed in the ground line signals collecting unit of switch yard, gather the state that articulates of the detected earth connection of ground wire hitching inductor, and the state that articulates of earth connection is sent to the earth connection office terminal, the state that articulates of earth connection is judged by analyzing the gained signal in the earth connection office terminal.
(4) judge whether locking:
When earth connection is in " articulating " state, the earth connection office terminal " articulates " signal with this, prevent passing the signal to five-preventing system after interface message processor (IMP)s communicate the stipulations conversion by five, send out " locking " signal by five-preventing system, simultaneously signal is sent to the anti-error monitoring terminal of scheduling (concentrator station), reminds higher level department to note not being with earth connection to send; When earth connection does not articulate, do not signal to five-preventing system and the anti-error monitoring terminal of scheduling (concentrator station).
(5) storage, analysis, demonstration, inquiry earth connection state:
A) storage: the earth connection user mode all stores in the server of earth connection office terminal with the variation that articulates state each time, so that inquiry.
B) analyze: by state informations such as current earth connection state and historical earth connection state and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning.
C) show
By the graphic means, show earth connection state and on off state in real time.
D) inquiry
To meeting the user of authority, use " historical query " function, the historic state of inquiry earth connection, generated query form.
Compared to existing technology, the present invention has following advantage:
(1) the present invention can discern the user mode information (being at the managing security tools and instruments storehouse or in the switch station) of earth connection, the identification earth connection articulate state information (whether be connected and whether take off) from ground stud with ground stud, and send or cancel the switching manipulation block signal by five-preventing system according to the detected state that articulates, prevent to be with earth connection to run jointly and close operation, support equipment and safety of workers.
(2) the present invention carries out transformer substation grounding wire management, detection and anti-misoperation locking, simple to operate, efficient administration, the user mode of earth connection and articulate state and finish detection automatically by transducer and collecting unit, the personnel that need not interfere, and project forms form according to demand, operating specification, the process management automation, thus improved the safety management level of transformer station.
(3) have warning and blocking function.When earth connection is in when articulating, earth connection transducer indicator light at switch yard is bright, graphic shows on the display of earth connection office terminal, and by the scheduling (concentrator station) anti-error monitoring terminal send " locking " signal, constantly remind the operating maintenance personnel to take care and working specification, support equipment and staff's safety.
(4) the real-time inquiry of earth connection operating position, for the dispatcher provides auxiliary security information, the generation of prevention security incident, thus further improve the safety management level.
(5) set up the networking data storehouse, the related personnel can use the Browser/Server mode earth connection information is inquired about at any time and to safeguard, has realized that remote online supervises automatically.
The present invention can be widely used in the earth connection management in overhaul of the equipments places such as power plant, transformer station, distribution substation and articulate anti-misoperation locking.
Description of drawings
Fig. 1 is a system block diagram of the present invention.Among the figure: 1-ground wire hitching inductor, 2-earth connection electronic mark board, 3-ground line signals collecting unit, 4-earth connection office terminal, 5-ground line signals five anti-interface message processor (IMP)s, 6-dispatches (concentrator station) anti-error monitoring terminal, the 7-five-preventing system, dotted arrow is represented wireless connections, solid arrow is represented wired connection.
Fig. 2 is the structural representation of the ground wire hitching inductor of the present invention's employing.Among the figure: the 21-shell, the 22-battery, the 23-indicator light, the 24-wireless signal transmitting device, 25-goes out line jack, the fixedly connected screw of 26-.
Fig. 3 is the schematic diagram of installation of ground wire hitching inductor and detection method one.
Fig. 4 is the schematic diagram of installation of ground wire hitching inductor and detection method two.
Among Fig. 3 and Fig. 4: 1-ground wire hitching inductor, 2-earth connection electronic mark board, 3-ground line signals collecting unit, 4-earth connection office terminal, 5-ground line signals five anti-interface message processor (IMP)s, 6-dispatches (concentrator station) anti-error monitoring terminal, the 7-five-preventing system, 8-earth connection, 9-earth connection end joint, the 10-ground stud, the connector of 11-exterior insulation, 12-high-voltage conducting wires, 13-switch.
Fig. 5 is the program flow chart of the inventive method.
Embodiment
Below in conjunction with accompanying drawing the inventive method is described in further detail.
As shown in Figure 1, a kind of transformer substation grounding wire articulates anti-error locking system, mainly comprises: ground wire hitching inductor 1, earth connection electronic mark board 2, ground line signals collecting unit 3, earth connection office terminal 4, ground line signals five anti-interface message processor (IMP)s 5, scheduling (concentrator station) anti-error monitoring terminal 6; Ground wire hitching inductor 1 and earth connection electronic mark board 2 adopt the short-distance wireless communication mode to transmit information with ground line signals collecting unit 3 respectively; Ground line signals collecting unit 3, earth connection office terminal 4, ground line signals five anti-interface message processor (IMP)s 5 and scheduling (concentrator station) anti-error monitoring terminal 6 adopt limited communication mode transmission information successively.
Earth connection electronic mark board 2 is fixed on the earth connection, a plurality of ground line signals collecting units 3 are installed in managing security tools and instruments storehouse and switch station respectively by numbering, and form the corresponding ground line signals collecting unit numbering and the mapping of present position; Gather earth connection present position information by ground line signals collecting unit 3, and upload to earth connection office terminal 4, earth connection office terminal 4 judges by the numbering of the earth connection collecting unit 3 uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection.
As shown in Figure 2, the ground wire hitching inductor 1 that employed detection ground stud is connected with earth connection, comprise in the shell 21 described shells 21 and be provided with battery 22, shell 21 is provided with out line jack 25 and fixedlys connected screw 26, be electrically connected to out line jack 25 behind indicator light 23 of positive pole series connection of battery 22, the negative pole of battery 22 is connected to fixedly connected screw 26; Simultaneously, also be provided with wireless signal transmitting device 24 in the shell 21, described wireless signal transmitting device 24 is in parallel with described indicator light 23.
The installation method of above-mentioned ground wire hitching inductor 1 has two kinds, and method one is that ground wire hitching inductor 1 is installed on the ground stud 10, and method two is that the ground wire hitching inductor is installed on the earth connection 8.Be specially:
Embodiment 1:
As shown in Figure 3, before substation equipment maintenance and repair, described ground wire hitching inductor 1 is installed on ground stud 10, the fixedly connected screw 26 of ground wire hitching inductor 1 and ground stud 10 adopts screws fix and to be electrically connected, and one of installation is used for the connector 11 of the exterior insulation that is electrically connected with described ground wire hitching inductor 1 on earth connection 8; When ground wire hitching, the connector of the exterior insulation on the earth connection 8 inserted go out line jack 25 on the ground wire hitching inductor 1, the end-fitting 9 with earth connection 8 inserts ground studs 10 then.
Ground wire hitching condition detection method based on above-mentioned ground wire hitching inductor 1 is: when earth connection 8 is connected with ground stud 10 when good, the indicator light 23 of ground wire hitching inductor 1 is bright, wireless signal transmitting device 24 startups simultaneously and " connection " information of transmission are to ground line signals collecting unit 3, and be sent to earth connection office terminal 4, earth connection office terminal 4 judges according to " connection " signal of ground line signals collecting unit 3 transmissions and the Position Number at ground line signals collecting unit 3 places ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP)s 5 of ground line signals five " connections " signal is carried out being sent to five-preventing system after stipulations are changed, send " locking " signal that latch switch is operated by five-preventing system; When earth connection is finished the work dismounting, the indicator light 23 of ground wire hitching inductor 1 extinguishes, stop simultaneously sending " connection " signal to ground line signals collecting unit 3, the signal that earth connection office terminal 4 sends according to ground line signals collecting unit 3 judges that earth connection takes off from ground stud, and by the anti-interface message processor (IMP)s 5 of ground line signals five signal is carried out being sent to five-preventing system after the stipulations conversion, cancel switching manipulation " locking " signal by five-preventing system;
Wherein, the criterion of wireless signal transmitting device 24 startups is formula (1):
U≥U
qd (1)
U in the formula---the voltage at wireless signal transmitting device two ends;
U
Qd---the wireless signal transmitting device starting resistor;
Ground line signals collecting unit 3 is arranged in switch yard and managing security tools and instruments room, be used to gather the user mode of earth connection or articulate state information, communicate between each collecting unit 3 and ground wire hitching inductor 1 nearby, the earth connection electronic mark board 2, and the signal that ground wire hitching inductor 1 and earth connection electronic mark board 2 send is delivered to ground line signals office terminal 4;
The 4 pairs of a plurality of ground line signals collecting units 3 in earth connection office terminal manage, and receive the data of ground line signals collecting unit 3, store, analyze, warn on the spot and the self check abnormal alarm; When earth connection is in when articulating state, signal is delivered to five-preventing system carry out the switching manipulation locking, and provide alarm signal on the spot, prompting maintainer and local operation personnel avoid mistake to run the pass jointly.
Ground line signals five anti-interface message processor (IMP)s 5 are finished the stipulations conversion and are served as communication interface, the earth connection block signal that ground line signals office terminal 4 is sent here converts the signal that five-preventing system 7 inputs require to, mainly contain two kinds of patterns: switching value pattern and data communication mode, select according to the signal mode of the existing five-preventing system of transformer station.
As shown in Figure 5, a kind of ground wire hitching anti-misoperation locking method is utilized anti-error locking system of the present invention, and device and software program by invention carry out the ground wire hitching anti-misoperation locking, it is characterized in that earth connection office terminal execution following steps:
1) initiation parameter:
System is carried out initialization, naming number, the ground wire hitching inductor 1 of finishing earth connection 8 numbered with numbering, the ground line signals collecting unit 3 of earth connection electronic mark board 2, transformer station's main electrical scheme diagramization demonstration, administration authority is set, sets user information.
2) gather earth connection user mode information:
By being installed in the ground line signals collecting unit 3 of managing security tools and instruments storehouse and switch station, gather the information of earth connection electronic mark board 2 on the earth connection, with the information uploading that collects to earth connection office terminal 4, earth connection office terminal 4 judges by the numbering of the earth connection collecting unit 3 uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection.
3) detect the ground wire hitching state information:
By being installed in the ground line signals collecting unit 3 of switch yard, gather the state that articulates of ground wire hitching inductor 1 detected earth connection, and the state that articulates of earth connection is sent to earth connection office terminal 4, the state that articulates of earth connection is judged by analyzing the gained signal in earth connection office terminal 4.
4) judge whether locking:
When earth connection is in " articulating " state, earth connection office terminal 4 " articulates " signal with this, prevent passing the signal to five-preventing system 7 after interface message processor (IMP)s 5 communicate the stipulations conversion by five, by 7 " locking " signals of five-preventing system, simultaneously signal is sent to the anti-error monitoring terminal 6 of scheduling (concentrator station), reminds higher level department to note not being with earth connection to send; When earth connection does not articulate, do not signal to five-preventing system 7 and the anti-error monitoring terminal 6 of scheduling (concentrator station).
5) storage, analysis, demonstration, inquiry earth connection state:
A) storage:
The earth connection user mode all stores in the server of earth connection office terminal 4 with the variation that articulates state each time, so that inquiry.
B) analyze:
By state informations such as current earth connection state and historical earth connection state and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning.
C) show:
By the graphic means, show earth connection state and on off state in real time.
D) inquiry:
To meeting the user of authority, use " historical query " function, the historic state of inquiry earth connection, generated query form.
Embodiment 2:
As shown in Figure 4, the fixedly connected screw 26 of described ground wire hitching inductor 1 is fixed and is connected electrically on the earth connection 8, the connector 11 of use exterior insulation will go out line jack 25 and be electrically connected with ground stud 8.The ground wire hitching condition detection method of above-mentioned ground wire hitching inductor 1 and ground wire hitching anti-misoperation locking method are not repeated at this with embodiment 1.
The foregoing description only is for clearly demonstrating example of the present invention, and is not to be qualification to embodiments of the present invention.For those of ordinary skill in the field, can also make other multi-form variation and changes on the basis of the above description, can't give exhaustive here all execution modes.Everyly belong to the row that conspicuous variation that technical solution of the present invention amplifies out or change still are in protection scope of the present invention.
Claims (3)
1. ground wire hitching anti-error locking system, it is characterized in that, mainly comprise: ground wire hitching inductor (1), earth connection electronic mark board (2), ground line signals collecting unit (3), earth connection office terminal (4), ground line signals five anti-interface message processor (IMP) (5), scheduling or the anti-error monitoring terminals of concentrator station (6); Ground wire hitching inductor (1) and earth connection electronic mark board (2) adopt the short-distance wireless communication mode to transmit information with ground line signals collecting unit (3) respectively; Ground line signals collecting unit (3), earth connection office terminal (4), ground line signals five anti-interface message processor (IMP)s (5) and the anti-error monitoring terminal of scheduling (6) transmit information by the wire communication mode successively;
Earth connection electronic mark board (2) is fixed on the earth connection, and a plurality of ground line signals collecting units (3) are installed in managing security tools and instruments storehouse and switch station respectively by numbering, and forms the corresponding ground line signals collecting unit numbering and the mapping of present position; Gather earth connection present position information by ground line signals collecting unit (3), and upload to earth connection office terminal (4), earth connection office terminal (4) judges by the numbering of the earth connection collecting unit (3) uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection;
Described ground wire hitching inductor (1) comprises shell (21), be provided with battery (22) in its shell (21), shell (21) is provided with out line jack (25) and fixedlys connected screw (26), be electrically connected to out line jack (25) behind the positive pole indicator light of series connection (23) of battery (22), the negative pole of battery (22) is connected to fixedly connected screw (26); Simultaneously, also be provided with wireless signal transmitting device (24) in the shell (21), described wireless signal transmitting device (24) is in parallel with described indicator light (23);
Utilize described ground wire hitching inductor (1) to detect whether earth connection is connected with ground stud and whether articulate state information, and send or cancel the switching manipulation block signal by five-preventing system according to the detected state that articulates from what ground stud took off;
Ground line signals collecting unit (3) is arranged in switch station and managing security tools and instruments room, be used to gather the user mode of earth connection or articulate state information, communicate between each collecting unit (3) and ground wire hitching inductor (1) nearby, the earth connection electronic mark board (2), and the signal that ground wire hitching inductor (1) and earth connection electronic mark board (2) send is delivered to ground line signals office terminal (4);
Earth connection office terminal (4) manages a plurality of ground line signals collecting units (3), receives the data of ground line signals collecting unit (3), stores, analyzes, warns on the spot and the self check abnormal alarm; When earth connection is in when articulating state, signal is delivered to five-preventing system (7) carry out the switching manipulation locking, and provide alarm signal on the spot, prompting maintainer and local operation personnel avoid mistake to run the pass jointly;
Ground line signals five anti-interface message processor (IMP)s (5) are finished the stipulations conversion and are served as communication interface, the earth connection block signal that ground line signals office terminal (4) are sent here converts the signal that five-preventing system (7) input requires to, two kinds of patterns are arranged: switching value pattern and data communication mode, select according to the signal mode of the existing five-preventing system of transformer station.
2. ground wire hitching condition detection method, it is characterized in that, adopt the described ground wire hitching anti-error locking system of claim 1 to carry out, the mounting means that described ground wire articulates inductor (1) is: method one: the ground wire hitching inductor is installed on the ground stud (10), and the fixedly connected screw (26) of ground wire hitching inductor (1) adopts screw to fix and be electrically connected with ground stud (10); Method two: the fixedly connected screw (26) of described ground wire hitching inductor (1) is fixed and is connected electrically on the earth connection (8), and the connector (11) of use exterior insulation will go out line jack (5) and be electrically connected with ground stud (8);
Carrying out the ground wire hitching condition detection method based on above-mentioned installation method is: when ground wire hitching, the connector (11) of exterior insulation inserted go out line jack (25) on the ground wire hitching inductor (1), the end-fitting (9) with earth connection (8) inserts ground stud (10) then; When earth connection (8) is connected with ground stud (10) when good, the indicator light of ground wire hitching inductor 1 (23) is bright, wireless signal transmitting device (24) startup simultaneously and " connection " information of transmission are to ground line signals collecting unit (3), and be sent to earth connection office terminal (4), earth connection office terminal (4) judges according to " connection " signal of ground line signals collecting unit (3) transmission and the Position Number at ground line signals collecting unit (3) place ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP)s (5) of ground line signals five " connections " signal is carried out being sent to anti-error monitoring terminal of scheduling (concentrator station) (6) and five-preventing system (7) after stipulations are changed, send " locking " signal that latch switch is operated by five-preventing system (7); When earth connection is finished the work dismounting, the indicator light (23) of ground wire hitching inductor (1) extinguishes, stop simultaneously sending " connection " signal to ground line signals collecting unit (3), the signal that earth connection office terminal (4) sends according to ground line signals collecting unit (3) judges that earth connection takes off from ground stud, and by the anti-interface message processor (IMP)s (5) of ground line signals five signal is carried out being sent to anti-error monitoring terminal of scheduling (concentrator station) (6) and five-preventing system (7) after the stipulations conversion, cancel switching manipulation " locking " signal by five-preventing system 7;
Wherein, the criterion of wireless signal transmitting device (24) startup is formula (1):
U≥U
qd (1)
U in the formula---the voltage at wireless signal transmitting device two ends;
U
Qd---the wireless signal transmitting device starting resistor.
3. according to the described ground wire hitching condition detection method of claim 2, utilize software program, following steps are carried out in described earth connection office terminal (4):
1) initiation parameter:
System is carried out initialization, naming number, the ground wire hitching inductor (1) of finishing earth connection (8) numbered with numbering, the ground line signals collecting unit (3) of earth connection electronic mark board (2), transformer station's main electrical scheme diagramization demonstration, administration authority is set, sets user information;
2) gather earth connection user mode information:
By being installed in the ground line signals collecting unit (3) of managing security tools and instruments storehouse and switch station, gather the information of earth connection electronic mark board (2) on the earth connection, with the information uploading that collects to earth connection office terminal (4), earth connection office terminal (4) judges by the numbering of the earth connection collecting unit (3) uploaded that earth connection is in the managing security tools and instruments storehouse or in the switch station, and draws the user mode information of earth connection;
3) detect the ground wire hitching state information:
By being installed in the ground line signals collecting unit (3) of switch yard, gather the state that articulates of the detected earth connection of ground wire hitching inductor (1), and the state that articulates of earth connection is sent to earth connection office terminal (4), earth connection office terminal (4) judge the state that articulates of earth connection by analyzing the gained signal;
4) judge whether locking:
When earth connection is in " articulating " state, earth connection office terminal (4) " articulates " signal with this, prevent passing the signal to five-preventing system (7) after interface message processor (IMP)s (5) communicate the stipulations conversion by five, send out " locking " signal by five-preventing system (7), simultaneously signal is sent to the anti-error monitoring terminal of scheduling (concentrator station) (6), reminds higher level department to note not being with earth connection to send; When earth connection does not articulate, do not signal to five-preventing system (7) and scheduling (concentrator station) anti-error monitoring terminal (6);
5) storage, analysis, demonstration and inquiry earth connection state:
A) storage: the earth connection user mode all stores in the server of earth connection office terminal (4) with the variation that articulates state each time, so that inquiry;
B) analyze: by state informations such as current earth connection state and historical earth connection state and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning;
C) show:, show earth connection state and on off state in real time by the graphic means;
D) inquiry: to meeting the user of authority, use " historical query " function, the historic state of inquiry earth connection, generated query form.
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| CN 201110216636 CN102255393B (en) | 2011-07-29 | 2011-07-29 | Ground wire hanging anti-error blocking system and method thereof |
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| CN102930392A (en) * | 2012-10-25 | 2013-02-13 | 沈阳化工大学 | System for running information of transformer substation |
| CN103683500A (en) * | 2013-12-01 | 2014-03-26 | 国家电网公司 | Substation temporary ground unlocking-locking control system |
| CN104281127A (en) * | 2014-09-16 | 2015-01-14 | 鞍山市海汇自动化有限公司 | Intelligent operation board hanging plate system and use method |
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| CN103683500A (en) * | 2013-12-01 | 2014-03-26 | 国家电网公司 | Substation temporary ground unlocking-locking control system |
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| CN114301183A (en) * | 2022-03-03 | 2022-04-08 | 广东电网有限责任公司佛山供电局 | Method and system for preventing scheduling misoperation |
| CN115424375A (en) * | 2022-08-29 | 2022-12-02 | 长园共创电力安全技术股份有限公司 | Intelligent interconnected ground wire anti-error system and ground wire hanging and dismantling method thereof |
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Effective date of registration: 20210210 Address after: 402760 No.92 Donglin Avenue, Biquan street, Bishan District, Chongqing Patentee after: Chongqing Fengji Intelligent Technology Research Institute Co.,Ltd. Address before: 400044 3-3, 47 Shapingba North Street, Shapingba District, Chongqing Patentee before: Xiong Xiaofu Effective date of registration: 20210210 Address after: 400044 3-3, 47 Shapingba North Street, Shapingba District, Chongqing Patentee after: Xiong Xiaofu Address before: 400044 No. 174 Sha Jie street, Shapingba District, Chongqing Patentee before: Chongqing University |