CN102255393B - Ground wire hanging anti-error blocking system and method thereof - Google Patents

Ground wire hanging anti-error blocking system and method thereof Download PDF

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Publication number
CN102255393B
CN102255393B CN 201110216636 CN201110216636A CN102255393B CN 102255393 B CN102255393 B CN 102255393B CN 201110216636 CN201110216636 CN 201110216636 CN 201110216636 A CN201110216636 A CN 201110216636A CN 102255393 B CN102255393 B CN 102255393B
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China
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earth connection
ground
ground wire
line signals
state
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CN 201110216636
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Chinese (zh)
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CN102255393A (en
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熊小伏
王建
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重庆大学
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Publication of CN102255393B publication Critical patent/CN102255393B/en

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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

A kind of ground wire hanging anti-error blocking system and method thereof

Technical field

The invention belongs to electric power system substation equipment maintenance and repair security maintenance technical field, particularly the anti-error detection management of ground wire hitching and five-preventing system improving method.

Background technology

The safe and reliable every 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 a buried ground stud of end, underground for when leaking electricity, electric current being imported, guarantee safety of workers.This temporary ground wire is that substation equipment maintenance and repair and Operation and Maintenance department are for the protection of the important tool of 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, after the anti-error monitoring terminal simulation of existing microcomputer scheduling (concentrator station) subpoena, operating personnel take the earth connection of license away, after opening the ground stud lockset according to the step of computer key demonstration, 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 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 substation switching operation ticket and power transformation the first work ticket, 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 system's None-identified on the ground stud of installing earth connection mistakenly, give tacit consent to this step to operate and correctly complete.

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 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, the complete earth connection of overhaul of the equipments may not removed fully, for having when all being mounted with earth connection in the middle of many windings ground wire and circuit two ends or circuit, more easily omit and remove earth connection especially;

3) operating state of earth connection and " five is anti-" system self can't feed back to the scheduling operation personnel, makes 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 such as the lockset corrosion etc., causes the behavior such as release by force to occur.

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

for 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 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 the operating state of earth connection and " five is anti-" system self, make the dispatcher can not fully grasp field condition, may cause the mistake problem such as issue orders, and provide a kind of ground wire hanging anti-error blocking system and method thereof, realization is used state to temporary ground wire and is articulated the detection supervision of state, and the signal that detects is connected 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 and prevent interface message processor (IMP)s, completed 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 hanging anti-error blocking system mainly comprises earth connection inductor, earth connection electronic mark board, ground line signals collecting unit, earth connection office terminal, the anti-interface message processor (IMP) of ground line signals five and the anti-error monitoring terminal of scheduling (concentrator station).

Earth connection electronic mark board and ground wire hitching inductor adopt short-distance wireless communication mode transmission information with the ground line signals collecting unit respectively.Ground line signals collecting unit, earth connection office terminal, the anti-interface message processor (IMP) of ground line signals five and dispatch anti-error monitoring terminal successively by wire communication mode transmission information.The major function of system is the use state 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 with ground stud and whether take off from ground stud), and send or cancel the circuit breaker lock signal by five-preventing system according to the state that articulates that detects.

Further, the earth connection electronic mark board that uses is fixed on earth connection, a plurality of ground line signals collecting units that use are arranged on respectively managing security tools and instruments storehouse and switch station by number, and form 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 numbering judgement earth connection of earth connection office terminal by the earth connection collecting unit uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection.

Further, the detection ground stud that uses and the ground wire hitching inductor of ground wire hitching state, comprise shell, its characteristics are, be provided with battery in described shell, be provided with out line jack on shell and be fixedly connected with screw, being electrically connected to out line jack after indicator light of positive pole series connection of battery, the negative pole of battery is connected to and is fixedly connected with screw; Simultaneously, also be provided with wireless signal transmitting device in 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 from what ground stud took off, and sending or cancel the switching manipulation block signal by five-preventing system according to the state that articulates that detects.

The ground line signals collecting unit is arranged in switch station and managing security tools and instruments room, be used for gathering the use state of earth connection or articulating state information, communicate between each collecting unit and ground wire hitching inductor nearby, 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 on the spot alarm signal, prompting maintainer and local operation personnel avoid the mistake combination switch.

The anti-interface message processor (IMP) of ground line signals five is completed the stipulations conversion and serves as communication interface, the earth connection block signal that the ground line signals office terminal is sent here converts the signal of five-preventing system input requirements 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 earth connection, is used for the sensing earth connection and uses state information (comprising earth connection numbering, position etc.); The ground wire hitching inductor is arranged on ground stud or earth connection, is used for sensing ground wire hitching state information (comprise whether articulating, whether well articulate state); The ground line signals collecting unit is installed on managing security tools and instruments storehouse and switch station, is used for gathering the earth connection that the earth connection transducer transmits and uses state and articulate state information; The information data of ground line signals collecting unit collection is sent to the earth connection office terminal, stores, analyze, caution and self check abnormal alarm on the spot; 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, carry out the switching manipulation locking by five-preventing system, and provide on the spot alarm signal, prompting maintainer and local operation personnel avoid the mistake combination switch.

Further, the installation method of above-mentioned ground wire hitching inductor has two kinds, method one: the ground wire hitching inductor is arranged on ground stud, and the screw that is fixedly connected with of ground wire hitching inductor adopts screw to be fixed and to be electrically connected to ground stud; Method two: the screw that is fixedly connected with of described ground wire hitching inductor is fixed and is connected electrically on 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, then the end-fitting with earth connection accesses ground stud, be connected with ground stud when earth connection when good, the indicator light of ground wire hitching inductor is bright, simultaneously wireless signal transmitting device start and " connection " information that sends to the ground line signals collecting unit, and be sent to the earth connection office terminal, the Position Number at " connections " signal that the earth connection office terminal sends according to the ground line signals collecting unit and ground line signals collecting unit place judges ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP) of ground line signals five, " connection " signal is carried out being sent to the anti-error monitoring terminal of scheduling (concentrator station) and five-preventing system after the stipulations conversion, send " locking " signal of latch switch operation 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, take off from ground stud according to the signal judgement earth connection that the ground line signals collecting unit sends the earth connection office terminal, and by the anti-interface message processor (IMP) of ground line signals five, signal is carried out being sent to after the stipulations conversion the good and five-preventing system of the anti-error monitoring terminal of scheduling (concentrator station), 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)

The voltage at U in formula---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, earth connection office terminal execution following steps:

(1) initiation parameter:

System is carried out initialization, complete numbering, ground line signals collecting unit numbering, the demonstration of Substation Bus Arrangement graphic 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 and use state information:

By being arranged on 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 earth connection, the information that collects is uploaded to the earth connection office terminal, the numbering judgement earth connection of earth connection office terminal by the earth connection collecting unit uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection.

(3) detect the ground wire hitching state information:

By being arranged on the ground line signals collecting unit of switch yard, the state that articulates of the earth connection that collection ground wire hitching inductor detects, and the state that articulates of earth connection is sent to the earth connection office terminal, the earth connection office terminal is by analyzing the state that articulates of gained signal judgement earth connection.

(4) judge whether locking:

When earth connection is in " articulating " state, the earth connection office terminal " articulates " signal with this, pass the signal to five-preventing system after communicating the stipulations conversion by five anti-interface message processor (IMP)s, send out " locking " signal by five-preventing system, simultaneously signal is sent to the anti-error monitoring terminal of scheduling (concentrator station), reminds the higher level that the earth connection power transmission is noted not being with by department; 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 state of earth wire:

A) storage: earth connection uses state and the variation that articulates state all to store in the server of earth connection office terminal each time, so that inquiry.

B) analyze: by state informations such as current state of earth wire and historical state of earth wire and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning.

C) show

By the graphic means, show in real time state of earth wire and on off state.

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 identify the use state 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 with ground stud and whether take off from ground stud), and send or cancel the switching manipulation block signal by five-preventing system according to the state that articulates that detects, prevent from being with the operation of earth connection combination switch, 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 use state of earth connection and articulate state and automatically complete detection 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, on the display of earth connection office terminal, graphic shows, and send " locking " signal by scheduling (concentrator station) anti-error monitoring terminal, constantly remind the operating maintenance personnel to take care and working specification, support equipment and staff's safety.

(4) real-time query 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 Browser/Server mode earth wire information to carry out at any time query and maintenance, has realized that remote online supervises automatically.

The earth connection management that the present invention can be widely used in the overhaul of the equipments place such as power plant, transformer station, distribution substation with articulate anti-misoperation locking.

Description of drawings

Fig. 1 is system block diagram of the present invention.In figure: 1-ground wire hitching inductor, 2-earth connection electronic mark board, 3-ground line signals collecting unit, 4-earth connection office terminal, the anti-interface message processor (IMP) of 5-ground line signals five, 6-dispatches (concentrator station) anti-error monitoring terminal, the 7-five-preventing system, dotted arrow represents wireless connections, solid arrow represents wired connection.

Fig. 2 is the structural representation of the ground wire hitching inductor that adopts of the present invention.In figure: the 21-shell, the 22-battery, the 23-indicator light, the 24-wireless signal transmitting device, 25-goes out line jack, and 26-is fixedly connected with screw.

Fig. 3 is the schematic diagram of the installation of ground wire hitching inductor and detection method one.

Fig. 4 is the schematic diagram of the installation of ground wire hitching inductor and detection method two.

In 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, the anti-interface message processor (IMP) of 5-ground line signals five, 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, the anti-interface message processor (IMP) 5 of ground line signals five, scheduling (concentrator station) anti-error monitoring terminal 6; Ground wire hitching inductor 1 and earth connection electronic mark board 2 adopt short-distance wireless communication mode transmission information with ground line signals collecting unit 3 respectively; Ground line signals collecting unit 3, earth connection office terminal 4, the anti-interface message processor (IMP) 5 of ground line signals five 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 earth connection, a plurality of ground line signals collecting units 3 are arranged on respectively managing security tools and instruments storehouse and switch station by number, and form 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, the numbering judgement earth connection of earth connection office terminal 4 by the earth connection collecting unit 3 uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection.

As shown in Figure 2, the ground wire hitching inductor 1 that the detection ground stud that uses is connected with earth connection, comprise in the described shell 21 of shell 21 and be provided with battery 22, be provided with out line jack 25 on shell 21 and be fixedly connected with screw 26, be electrically connected to out line jack 25 after indicator light 23 of positive pole series connection of battery 22, the negative pole of battery 22 is connected to and is fixedly connected with screw 26; Simultaneously, also be provided with wireless signal transmitting device 24 in 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 arranged on ground stud 10, and method two is that the ground wire hitching inductor is arranged on 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 screw 26 that is fixedly connected with of ground wire hitching inductor 1 adopts screw to be fixed and to be electrically connected to ground stud 10, installs one for the connector 11 of the exterior insulation that is electrically connected to described ground wire hitching inductor 1 on earth connection 8; When ground wire hitching, the connector of the exterior insulation on earth connection 8 is inserted go out line jack 25 on ground wire hitching inductor 1, then with the end-fitting 9 access ground studs 10 of earth connection 8.

ground wire hitching condition detection method based on above-mentioned ground wire hitching inductor 1 is: be connected with ground stud 10 when earth connection 8 when good, the indicator light 23 of ground wire hitching inductor 1 is bright, simultaneously wireless signal transmitting device 24 start and " connection " information that sends to ground line signals collecting unit 3, and be sent to earth connection office terminal 4, the Position Number at " connections " signal that earth connection office terminal 4 sends according to ground line signals collecting unit 3 and ground line signals collecting unit 3 places judges ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP) 5 of ground line signals five, " connection " signal is carried out being sent to five-preventing system after the stipulations conversion, send " locking " signal of latch switch operation 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, take off from ground stud according to the signal judgement earth connection that ground line signals collecting unit 3 sends earth connection office terminal 4, and by the anti-interface message processor (IMP) 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)

The voltage at U in formula---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 for gathering the use state of earth connection or articulating state information, communicate between each collecting unit 3 and ground wire hitching inductor 1 nearby, 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;

A plurality of ground line signals collecting units 3 in 4 pairs of earth connection office terminals 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 on the spot alarm signal, prompting maintainer and local operation personnel avoid the mistake combination switch.

The anti-interface message processor (IMP) 5 of ground line signals five is completed the stipulations conversion and serves as communication interface, the earth connection block signal that ground line signals office terminal 4 is sent here converts the signal of five-preventing system 7 input requirements 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 Interlocking Methods utilizes 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 completing earth connection 8 show with numbering, ground line signals collecting unit 3 numberings, the Substation Bus Arrangement graphic of earth connection electronic mark board 2, administration authority is set, sets user information.

2) gather earth connection and use state information:

By being arranged on 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 earth connection, the information that collects is uploaded to earth connection office terminal 4, the numbering judgement earth connection of earth connection office terminal 4 by the earth connection collecting unit 3 uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection.

3) detect the ground wire hitching state information:

By being arranged on the ground line signals collecting unit 3 of switch yard, the state that articulates of the earth connection that collection ground wire hitching inductor 1 detects, and the state that articulates of earth connection is sent to earth connection office terminal 4, earth connection office terminal 4 is by analyzing the states that articulate of gained signal judgement earth connection.

4) judge whether locking:

When earth connection is in " articulating " state, earth connection office terminal 4 " articulates " signal with this, pass the signal to five-preventing system 7 after communicating the stipulations conversion by five anti-interface message processor (IMP)s 5, by 7 " locking " signals of five-preventing system, simultaneously signal is sent to the anti-error monitoring terminal 6 of scheduling (concentrator station), reminds the higher level that the earth connection power transmission is noted not being with by department; 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 state of earth wire:

A) storage:

The earth connection variation using state and articulate state is each time all stored in the server of earth connection office terminal 4, so that inquiry.

B) analyze:

By state informations such as current state of earth wire and historical state of earth wire and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning.

C) show:

By the graphic means, show in real time state of earth wire and on off state.

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 screw 26 that is fixedly connected with of described ground wire hitching inductor 1 is fixed and is connected electrically on 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 Interlocking Methods are not repeated at this with embodiment 1.

Above-described embodiment is only for clearly demonstrating example of the present invention, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes, can't give all execution modes exhaustive here.Everyly belong to the row that apparent 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 hanging anti-error blocking 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 terminal of concentrator station (6); Ground wire hitching inductor (1) and earth connection electronic mark board (2) adopt short-distance wireless communication mode transmission information with ground line signals collecting unit (3) respectively; Ground line signals collecting unit (3), earth connection office terminal (4), the anti-interface message processor (IMP) (5) of ground line signals five and scheduling or the anti-error monitoring terminal of concentrator station (6) are successively by wire communication mode transmission information;
Earth connection electronic mark board (2) is fixed on earth connection, and a plurality of ground line signals collecting units (3) are arranged on respectively managing security tools and instruments storehouse and switch station by number, and forms 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), the numbering judgement earth connection of earth connection office terminal (4) by the ground line signals collecting unit (3) uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection;
Described ground wire hitching inductor (1) comprises shell (21), be provided with battery (22) in its shell (21), be provided with out line jack (25) on shell (21) and be fixedly connected with screw (26), be electrically connected to out line jack (25) after a positive pole indicator light of series connection (23) of battery (22), the negative pole of battery (22) is connected to and is fixedly connected with screw (26); Simultaneously, also be provided with wireless signal transmitting device (24) in 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 from what ground stud took off, and sending or cancel the switching manipulation block signal by five-preventing system according to the state that articulates that detects;
Ground line signals collecting unit (3) is arranged in switch station and managing security tools and instruments storehouse, be used for gathering the use state of earth connection or articulating state information, communicate between each ground line signals collecting unit (3) and ground wire hitching inductor (1) nearby, 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 earth connection 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 on the spot alarm signal, prompting maintainer and local operation personnel avoid the mistake combination switch;
The anti-interface message processor (IMP) (5) of ground line signals five is completed the stipulations conversion and serves as communication interface, the earth connection block signal that earth connection office terminal (4) is sent here converts the signal of five-preventing system (7) input requirements 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 hanging anti-error blocking system of claim 1 to carry out, the mounting means of described ground wire hitching inductor (1) is: method one: ground wire hitching inductor (1) is arranged on ground stud (10), and the screw (26) that is fixedly connected with of ground wire hitching inductor (1) adopts screw to be fixed and to be electrically connected to ground stud (10); Method two: the screw (26) that is fixedly connected with of described ground wire hitching inductor (1) is fixed and is connected electrically on earth connection (8), and the connector (11) of use exterior insulation will go out line jack (25) and be electrically connected with ground stud (10);
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 is inserted go out line jack (25) on ground wire hitching inductor (1), then with end-fitting (9) the access ground stud (10) of earth connection (8), be connected with ground stud (10) when earth connection (8) when good, the indicator light (23) of ground wire hitching inductor (1) is bright, simultaneously wireless signal transmitting device (24) start and " connection " information that sends to ground line signals collecting unit (3), and be sent to earth connection office terminal (4), the Position Number at " connections " signal that earth connection office terminal (4) sends according to ground line signals collecting unit (3) and ground line signals collecting unit (3) place judges ground wire hitching is on which ground stud, and by the anti-interface message processor (IMP) (5) of ground line signals five, " connection " signal is carried out being sent to scheduling or the anti-error monitoring terminal of concentrator station (6) and five-preventing system (7) after the stipulations conversion, send " locking " signal of latch switch operation 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), take off from ground stud according to the signal judgement earth connection that ground line signals collecting unit (3) sends earth connection office terminal (4), and by the anti-interface message processor (IMP) (5) of ground line signals five, signal is carried out being sent to scheduling or the anti-error monitoring terminal of 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):
???(1)
In formula ---the voltage at wireless signal transmitting device two ends;
---the wireless signal transmitting device starting resistor.
3. ground wire hitching condition detection method according to claim 2, utilize software program, and 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 completing earth connection (8) show with numbering, ground line signals collecting unit (3) numbering, the Substation Bus Arrangement graphic of earth connection electronic mark board (2), administration authority is set, sets user information;
2) gather earth connection and use state information:
By being arranged on 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 earth connection, the information that collects is uploaded to earth connection office terminal (4), the numbering judgement earth connection of earth connection office terminal (4) by the ground line signals collecting unit (3) uploaded is in the managing security tools and instruments storehouse or in the switch station, and draws the use state information of earth connection;
3) detect the ground wire hitching state information:
By being arranged on the ground line signals collecting unit (3) of switch station, the state that articulates of the earth connection that collection ground wire hitching inductor (1) detects, and the state that articulates of earth connection is sent to earth connection office terminal (4), earth connection office terminal (4) is by analyzing the state that articulates of gained signal judgement earth connection;
4) judge whether locking:
When earth connection is in connection status, earth connection office terminal (4) connects signal with this, pass the signal to five-preventing system (7) after communicating the stipulations conversion by the anti-interface message processor (IMP) (5) of ground line signals five, send out " locking " signal by five-preventing system (7), simultaneously signal is sent to scheduling or the anti-error monitoring terminal of concentrator station (6), reminds the higher level that the earth connection power transmission is noted not being with by department; When earth connection does not articulate, not to five-preventing system (7) and scheduling or the anti-error monitoring terminal of concentrator station (6) signalling;
5) storage, analysis, demonstration and inquiry state of earth wire:
A) storage: earth connection uses state and the variation that articulates state all to store in the server of earth connection office terminal (4) each time, so that inquiry;
B) analyze: by state informations such as current state of earth wire and historical state of earth wire and other earth connections, switches, whether the real-time analysis inspection operation is reasonable, and gives warning;
C) show: by the graphic means, show in real time state of earth wire and on off state;
D) inquiry: to meeting the user of authority, use " historical query " function, the historic state of inquiry earth connection, generated query form.
CN 201110216636 2011-07-29 2011-07-29 Ground wire hanging anti-error blocking system and method thereof CN102255393B (en)

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