CN104466761B

CN104466761B - Transformer substation temporary wiring anti-misoperation locking system, detection method and computer key

Info

Publication number: CN104466761B
Application number: CN201410558280.8A
Authority: CN
Inventors: 岑凯辛; 侯捷
Original assignee: Shenzhen Power Supply Co ltd
Current assignee: Shenzhen Power Supply Co ltd
Priority date: 2014-10-21
Filing date: 2014-10-21
Publication date: 2017-01-25
Anticipated expiration: 2034-10-21
Also published as: CN104466761A

Abstract

The embodiment of the invention discloses a transformer substation temporary wiring anti-misoperation locking system, which comprises an industrial control host, a communication adapter communicated with a microcomputer, a computer key, various locks, a newly added electric coding lock matched with an electroscope pen, and a first newly added mechanical coding lock and a second newly added mechanical coding lock respectively matched with a grounding wire and a grounding rod; the industrial control host comprises a locking logic program of an electroscope, a grounding wire and a grounding rod; the newly-added coding lock comprises a first five-prevention electronic coding piece with a first code; the first newly-added mechanical coding lock comprises a second five-prevention electronic coding piece with a second code; the second newly-added mechanical coding lock is provided with a third five-prevention electronic coding piece for generating a third code; according to the locking logic program, the codes displayed by the computer key are respectively matched with the first, second and third codes, so that the lock opening and closing corresponding to the code matching are controlled. According to the embodiment of the invention, the management of the grounding wire, the grounding rod and the test pencil can be realized, so that the purpose of comprehensively monitoring and managing the temporary grounding wire is realized.

Description

Transformer substation temporary wiring anti-misoperation locking system, detection method and computer key

Technical Field

The invention relates to the technical field of power transformation overhaul and maintenance of a power system, in particular to a transformer substation temporary wiring anti-misoperation locking system, a detection method and a computer key.

Background

The electrical misoperation of the transformer substation can cause large-area power failure, equipment damage, personal casualty, even serious consequences such as grid oscillation or collapse, and the like, so in order to effectively prevent personal and major equipment accidents caused by misoperation of operating electrical equipment, the original water and electricity department lists the prevention of electrical misoperation accidents as major technical problem release which is urgently needed to be solved in power production in 1980 by combining the practice of the traditional Chinese and foreign electrical operation, and puts forward the requirement of five prevention of the electrical equipment in 1990, and stipulates the management, operation, design and use principles of electrical misoperation prevention in a regulation form (the article of energy security [1990] 1110). Wherein, the five prevention concretely comprises: firstly, preventing the isolating switch from being pulled or closed by mistake under load; secondly, the circuit breaker is prevented from being pulled or closed by mistake; thirdly, preventing the switch-on of the grounding or grounding knife switch; preventing the earth wire from being hung or the earthing knife switch from being closed in an electrified way; prevent the false entering of the electrified interval.

The grounding wire is a life wire for ensuring personal safety of substation workers, the operation of assembling and disassembling the grounding wire is operation with high risk in electrical operation, once an accident occurs, the influence is large, the consequence is serious, and meanwhile, the operation is also a main source of human equipment accidents and personal casualty accidents, so the method for ensuring the correctness of assembling and disassembling the grounding wire is an important work for safe and reliable operation of a substation.

The measures generally adopted nationwide at present are as follows: the method is characterized in that a grounding fixed end is arranged near or on primary equipment of a transformer substation, a microcomputer five-prevention padlock is arranged on the grounding fixed end or an electrical coding lock is arranged on the primary equipment, meanwhile, a grounding pile mark is additionally arranged on a main wiring diagram (shown in figure 1) of a five-prevention device of a comprehensive operating system of the transformer substation in the microcomputer, and locking logic is compiled by combining the grounding pile with position information of a relevant switch, a disconnecting link and a grounding switch, so that the grounding line is prevented from being switched on or from being hung on in an electrified way, but the grounding pile method cannot comprehensively bring the grounding line into the comprehensive operating system of the transformer substation due to the following reasons:

1. the grounding end is a grounding pile with a microcomputer five-prevention device, when primary equipment of the transformer substation is overhauled, the grounding pile is adopted to restrict the ground wire installation place, but the grounding wire has two characteristics of temporary property and fixed installation according to requirements, so that the ground wire installation place cannot be determined, and two modes of managing the grounding wire are generated in the transformer substation. The first management method is that the transformer substation comprehensive operation system can be incorporated, and a ground wire is required to be arranged on a grounding pile; the second management method is a non-incorporable substation integrated operation system, which does not need to install ground wires on the grounding piles, and the method has the disadvantages that: hidden troubles of misoperation are buried, monitoring means are lacked, and the phenomenon of neglected assembly and disassembly of the grounding wire is easily caused.

2. The transformer substation staff usually can install the ground connection stake according to the work experience, even the ground connection stake sign of reference main wiring diagram, also can appear neglecting to adorn or the phenomenon of mistake dress ground connection stake, moreover because the measuring error appears in the distance between ground connection stake and the maintenance equipment, and the length of earth connection is fixed, therefore make the staff often in order to emigrate the ground connection stake when installing the earth connection, and neglected to adopt correct installation posture and keep enough safe installation distance.

3. Because the grounding wire, the grounding rod and the test pencil are not incorporated into the comprehensive operation system of the transformer substation, and only the grounding pile which limits the installation place is incorporated into the comprehensive operation system of the transformer substation, the phenomenon of locking and limiting the electrified grounding wire hanging is not really realized. When the grounding wire is temporarily hung and is not connected with the grounding pile, the comprehensive operation system of the transformer substation cannot manage the grounding wire, so that a microcomputer for controlling the comprehensive operation system of the transformer substation can simulate switching-on and power transmission when the grounding wire is detached, and accidents such as switching-on with the grounding wire or personal injury are caused.

Disclosure of Invention

The embodiment of the invention aims to provide a transformer substation temporary wiring misoperation-preventive locking system, a detection method and a computer key, which can realize the management of a grounding wire, a grounding rod and an electricity testing pen and further convert a grounding pile into electrical equipment for management, thereby realizing the purpose of comprehensively monitoring and managing a temporary grounding wire and avoiding the occurrence of accidents such as missing installation and removal of the grounding wire, switching-on with the grounding wire, personal injury and the like.

In order to solve the technical problem, the embodiment of the invention provides a transformer substation temporary wiring anti-misoperation locking system, which comprises an industrial control host, a communication adapter communicated with a microcomputer provided with a transformer substation comprehensive operation system, a computer key, a plurality of electric coding locks matched with electric control equipment and a plurality of mechanical coding locks matched with manual control equipment, wherein the transformer substation temporary wiring anti-misoperation locking system further comprises a new electric coding lock matched with an electroscope pen, a first new mechanical coding lock matched with a ground wire and a second new mechanical coding lock matched with a ground rod; wherein,

a locking logic program comprising an electroscope, a grounding wire and a grounding rod is written on the industrial control host and is used for sending the locking logic program to the computer key;

the newly added electric coded lock comprises a fifth electricity-proof electronic coding piece for generating a first code, and the newly added electric coded lock is arranged at the tail end of the electroscope pen far away from the electroscope pen head and is used for matching the generated first code with the code displayed by the computer key inserted into the newly added electric coded lock, so that the computer key can detect the use state of the electroscope pen according to the locking logic program; wherein the usage status includes normal and abnormal;

the first newly-added mechanical coded lock comprises a second five-prevention electronic coding piece for generating a second code, the first newly-added mechanical coded lock is meshed with or separated from the grounding end of the grounding wire, and the generated second code is matched with the code displayed by the computer key inserted into the first newly-added mechanical coded lock, so that the computer key controls the first newly-added mechanical coded lock to be unlocked or locked according to the locking logic program;

the second newly-added mechanical coded lock comprises a third five-prevention electronic coding piece for generating a third code, and the second newly-added mechanical coded lock is meshed with or separated from one end of the grounding rod and used for matching the generated third code with a code displayed by inserting the computer key into the second newly-added mechanical coded lock, so that the computer key controls the second newly-added mechanical coded lock to be unlocked or locked according to the locking logic program.

The unlocking sequence of the locking logic program is the test pencil, the grounding wire and the grounding rod in sequence.

When the generated first code is matched with a code displayed by inserting the computer key into the newly added coded lock, the computer key determines that the using state of the test pencil is normal according to the locking logic program; and when the generated first code is not matched with the code displayed when the computer key is inserted into the newly added coded lock, the computer key determines that the using state of the electroscope pen is abnormal according to the locking logic program.

When the generated second code is matched with the code displayed by inserting the computer key into the first newly added mechanical code lock, the computer key controls the first newly added mechanical code lock to be unlocked according to the locking logic program and further allows the grounding wire to be grounded; when the generated second code is not matched with the code displayed by the computer key inserted into the first newly added mechanical code lock, the computer key controls the first newly added mechanical code lock to be locked according to the locking logic program and sends alarm information.

When the generated third code is matched with a code displayed by inserting the computer key into the second newly-added mechanical coded lock, the computer key controls the second newly-added mechanical coded lock to be unlocked according to the locking logic program, and further allows the grounding rod to be connected with a clamping head on the grounding end of the grounding wire; and when the generated third code is not matched with the code displayed by inserting the computer key into the second newly-added mechanical code lock, the computer key controls the second newly-added mechanical code lock to be locked according to the locking logic program and sends alarm information.

And the microcomputer cancels and integrates all the grounding pile marks in the displayed comprehensive substation operation system into a grounding total mark.

The embodiment of the invention also provides a detection method of the transformer substation temporary wiring anti-misoperation locking system, which is realized in the system, and the method comprises the following steps:

a. the computer key receives a locking logic program which comprises an electroscope, a grounding wire and a grounding rod and is sent by the industrial control host; the unlocking sequence of the locking logic program is that the test pencil, the grounding wire and the grounding rod are sequentially arranged and written into the industrial control host in advance;

b. in the operation process, the computer key is inserted into a newly-added code lock matched with the test pencil, the matching condition of a code displayed by the computer key and a first code generated by a first five-prevention electronic coding piece on the test pencil is detected, and the use state of the test pencil is judged according to the detection result and the locking logic program; wherein the usage status includes normal and abnormal;

c. after the detected using state of the test pencil is normal, inserting the computer key into a first newly added mechanical coding lock matched with the grounding wire, detecting the matching condition of a code displayed by the computer key and a second code generated by a second five-prevention electronic coding chip on the grounding wire, and controlling the first newly added mechanical coding lock to be unlocked or locked according to a detection result and the locking logic program; and

d. after the first newly-added mechanical coded lock is unlocked, the computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod, the matching condition of the code displayed by the computer key and a third code generated by a third five-prevention electronic code sheet on the grounding rod is detected, and the second newly-added mechanical coded lock is controlled to be unlocked or locked according to the detection result and the locking logic program.

In the step b, the concrete steps of "the computer key is inserted into a newly added power code lock matched with the test pencil, the matching condition of the code displayed by the computer key and the first code generated by the first five electronic code pieces on the test pencil is detected, and the using state of the test pencil is judged according to the detection result and the locking logic program" include:

when the computer key is inserted into a newly-added code lock matched with the test pencil, and the code displayed by the computer key is matched with the first code generated by the first five-prevention electronic code chip, determining that the use state of the test pencil is normal according to the locking logic program;

and when the computer key is inserted into a newly added power code lock matched with the test pencil, and the code displayed by the computer key is not matched with the first code generated by the first five-prevention electronic code chip, determining that the use state of the test pencil is abnormal according to the locking logic program.

In the step c, "the computer key is inserted into a first newly added mechanical coded lock matched with the grounding wire, the matching condition of a code displayed by the computer key and a second code generated by a second five-prevention electronic code piece on the grounding wire is detected, and the unlocking or locking of the first newly added mechanical coded lock is controlled according to the detection result and the locking logic program" specifically comprises the following steps:

when the computer key is inserted into a first newly-added mechanical coded lock matched with the grounding wire, and a code displayed by the computer key is matched with a second code generated by a second five-prevention electronic coded chip, controlling the first newly-added mechanical coded lock to be unlocked according to the locking logic program, and further allowing the grounding wire to be grounded;

when the computer key is inserted into a first newly added mechanical coding lock matched with the grounding wire, and the code displayed by the computer key is not matched with a second code generated by the second five-prevention electronic coding piece, the first newly added mechanical coding lock is controlled to be locked according to the locking logic program, and alarm information is sent out.

In the step d, "the computer key is inserted into a second newly added mechanical coded lock matched with the grounding rod, the matching condition of a code displayed by the computer key and a third code generated by a third five-prevention electronic code sheet on the grounding rod is detected, and the unlocking or locking of the second newly added mechanical coded lock is controlled according to the detection result and the locking logic program" specifically comprises the following steps:

when the computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod, and a code displayed by the computer key is matched with a third code generated by a third five-prevention electronic coded chip, controlling the second newly-added mechanical coded lock to be unlocked according to the locking logic program, and further allowing the grounding rod to be connected with a clamping head on the grounding end of the grounding wire;

when the computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod, and the code displayed by the computer key is not matched with a third code generated by the third five-prevention electronic coded sheet, controlling the second newly-added mechanical coded lock to be locked according to the locking logic program, and sending alarm information.

Wherein, step a also includes the step before:

the computer key receives and determines the total number of the grounding wires sent by the industrial control host and information corresponding to each grounding wire; the total number of the grounding wires and the information corresponding to each grounding wire are information which is displayed by a microcomputer in the comprehensive operation system of the transformer substation, is cancelled and integrated into a grounding total mark by the microcomputer, responds to the selection operation of a user on the grounding total mark, executes the selection of the grounding total mark, and is transmitted to the industrial personal computer through a communication adapter.

An embodiment of the present invention further provides a computer key, including:

the logic program receiving unit is used for receiving a locking logic program which is sent by the industrial control host and comprises an electroscope, a grounding wire and a grounding rod by a computer key; the unlocking sequence of the locking logic program is that the test pencil, the grounding wire and the grounding rod are sequentially arranged and written into the industrial control host in advance;

the detection unit is used for inserting the computer key into a newly-added coded lock matched with the electroscope pen in the operation process, detecting the matching condition of a code displayed by the computer key and a first code generated by a first five-prevention electronic coding piece on the electroscope pen, and judging the use state of the electroscope pen according to a detection result and the locking logic program; wherein the usage status includes normal and abnormal;

the first control unit is used for inserting the computer key into a first newly-added mechanical coding lock matched with the grounding wire after the detected using state of the test pencil is normal, detecting the matching condition of a code displayed by the computer key and a second code generated by a second five-prevention electronic coding piece on the grounding wire, and controlling the first newly-added mechanical coding lock to be unlocked or locked according to a detection result and the locking logic program;

and the second control unit is used for inserting the computer key into a second newly-added mechanical coded lock matched with the grounding rod after the first newly-added mechanical coded lock is unlocked, detecting the matching condition of a code displayed by the computer key and a third code generated by a third five-prevention electronic coding chip on the grounding rod, and controlling the unlocking or locking of the second newly-added mechanical coded lock according to a detection result and the locking logic program.

Wherein the detection unit includes:

the first detection module is used for determining that the using state of the electroscope pen is normal according to the locking logic program when the computer key is inserted into a newly added electricity code lock matched with the electroscope pen and the code displayed by the computer key is matched with the first code generated by the first five-prevention electronic code piece;

and the second detection module is used for determining that the using state of the test pencil is abnormal according to the locking logic program when the computer key is inserted into a newly added power code lock matched with the test pencil and the code displayed by the computer key is not matched with the first code generated by the first five anti-electronic code pieces.

Wherein the first control unit includes:

the first unlocking module is used for controlling the first newly-added mechanical coded lock to be unlocked according to the locking logic program and further allowing the grounding wire to be grounded when the computer key is inserted into the first newly-added mechanical coded lock matched with the grounding wire and the code displayed by the computer key is matched with the second code generated by the second five-prevention electronic coded chip;

and the first locking module is used for controlling the locking of the first newly-added mechanical coded lock according to the locking logic program and sending alarm information when the computer key is inserted into the first newly-added mechanical coded lock matched with the grounding wire and the code displayed by the computer key is not matched with the second code generated by the second five-prevention electronic coded chip.

Wherein the second control unit includes:

the second unlocking module is used for controlling the second newly-added mechanical coded lock to be unlocked according to the locking logic program when the computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod and the code displayed by the computer key is matched with a third code generated by a third five-prevention electronic coded chip, and further allowing the grounding rod to be connected with a clamping head on the grounding end of the grounding wire;

and the second locking module is used for controlling the second newly-added mechanical coded lock to be locked according to the locking logic program and sending alarm information when the computer key is inserted into the second newly-added mechanical coded lock matched with the grounding rod and the code displayed by the computer key is not matched with the third code generated by the third five-prevention electronic coding piece.

Wherein, computer key still includes:

the ground wire information receiving unit is used for receiving and determining the total number of the ground wires sent by the industrial control host and information corresponding to each ground wire by the computer key; the total number of the grounding wires and the information corresponding to each grounding wire are information which is displayed by a microcomputer in the comprehensive operation system of the transformer substation, is cancelled and integrated into a grounding total mark by the microcomputer, responds to the selection operation of a user on the grounding total mark, executes the selection of the grounding total mark, and is transmitted to the industrial personal computer through a communication adapter.

The embodiment of the invention has the following beneficial effects:

1. in the embodiment of the invention, the system ensures that the ground wire installation place is not limited by the ground pile any more, thereby being more in line with the daily work requirement, and all the ground wires of the transformer substation are brought into the comprehensive operation system of the transformer substation, so that the possibility of two types of ground wires in the transformer substation is avoided, and the dead angle of the prior ground wire management is eliminated;

2. in the embodiment of the invention, as the grounding wire, the grounding rod and the test pencil are all brought into the comprehensive operation system of the transformer substation, each step of the grounding switch closing or grounding wire assembly and disassembly work must be carried out in the comprehensive operation system of the transformer substation, and the effects of the comprehensive operation system of the transformer substation on preventing the grounding wire or the grounding switch from closing and preventing the grounding wire or the grounding switch from being hung in an electrified way are perfected;

3. in the embodiment of the invention, after the lock and the five-prevention electronic code are additionally arranged on the grounding wire, the grounding rod and the test pencil, the grounding wire, the grounding rod and the test pencil can be managed through the microcomputer, so that the safety tools which are not in accordance with the voltage grade can be prevented from being used by operators by mistake, and accidents are avoided; due to the fact that a locking logic program comprising the electroscope pen, the grounding wire and the grounding rod is added, locking logic is more complete.

4. In the embodiment of the invention, the grounding pile mark is cancelled and integrated into a grounding total mark by adopting the main wiring diagram of the five-prevention device in the novel comprehensive operation system of the transformer substation, so that the whole wiring diagram becomes clear and intuitive.

5. In the embodiment of the invention, as the coding lock is only added in the system, the investment is very little, the effect is quick, the system not only accords with the actual working condition, but also is perfected on the original basis, and the small modification of the safety tool does not have any influence on the insulation and mechanical strength.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

Fig. 1 is a main wiring diagram of a five-prevention device in a comprehensive operation system of a transformer substation in the prior art;

FIG. 2 is a schematic diagram of a communication system structure applied to a comprehensive operation system of a microcomputer substation of a substation in the prior art;

fig. 3 is a schematic structural diagram of a temporary wiring mis-locking prevention system of a transformer substation according to an embodiment of the present invention;

FIG. 4 is a schematic plan view of the combination of the test pencil and the new power-added coded lock in FIG. 3;

FIG. 5 is a schematic view of the ground line of FIG. 3 assembled with the first novel mechanical coding lock;

FIG. 6 is a schematic view of the grounding rod of FIG. 3 assembled with a second additional mechanical coding lock;

fig. 7 is a main wiring diagram of a five-prevention device in the integrated operating system of the substation provided by the embodiment of the invention;

fig. 8 is a flowchart of a detection method of a temporary connection mis-locking prevention system of a transformer substation according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a computer key according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 2, the inventor found that a transformer substation in the prior art usually adopts a microcomputer transformer substation integrated operation system to perform anti-misoperation locking management, and a communication system structure applied to the transformer substation microcomputer transformer substation integrated operation system is composed of a microcomputer, an industrial control host, a communication adapter, a computer key and various locks (including a plurality of electric coded locks matched with electrical control equipment and a plurality of mechanical coded locks matched with manual control equipment).

The industrial control host is a core component, is connected with and manages slave station equipment on a microcomputer transformer substation comprehensive operation system network, all running programs are stored in the industrial control host, and the industrial control host can complete the work of simulation rehearsal, equipment operation, system maintenance, accident treatment, multitask parallel operation and the like under the control of a control switch, a lamp switch and a keyboard; the communication adapter is a communication hub and can be connected and communicated with external devices such as a monitoring system, a measurement and control unit, an RTU and the like to complete necessary operation; the computer key is used for receiving an operation order sent by the industrial control host in the operation process, sequentially unlocking the electric coded lock and the mechanical coded lock according to the content of the operation order, and sending an alarm and forcibly locking if the actual operation does not accord with the prompt of the computer key; the electric coding lock is used for locking a circuit breaker, an electric isolating switch and an electric grounding disconnecting link which are operated on site, is equivalent to a normally open contact in an electric principle, and is connected in series with a corresponding electric operation loop; the mechanical coding lock is used for locking manual control equipment such as a manual isolating switch, a grounding disconnecting link, a grounding pile and a net door.

The locking of the comprehensive operation system of the microcomputer transformer substation of the transformer substation to the temporary grounding wire is generally realized by additionally arranging a grounding wire head and a grounding pile. When the temporary ground wire is hung, the mechanical coding lock is unlocked by a computer key firstly, and then the temporary ground wire is installed and locked. The application steps of the comprehensive operation system of the microcomputer transformer substation for realizing the grounding wire locking function of the transformer substation are as follows:

(1) the monitoring system or the operation ticket expert system transmits the state of the primary equipment of the transformer substation to the industrial control host through the communication adapter;

(2) the preset locking logic program is solidified on the industrial control host, and the computer key receives the locking logic operation program preset on the industrial control host;

(3) when the computer key is used, the computer key is inserted into the electric coding lock, when the padlock code on the grounding pile is consistent with the serial number displayed by the computer key, the operation loop is connected inside the computer key, the padlock is opened, the grounding operation of a grounding wire is allowed to be connected, otherwise, the computer key refuses to connect the operation loop and gives an alarm.

Therefore, the inventor finds that the system only brings the grounding pile which limits the installation place into the comprehensive operation system of the transformer substation, and does not really limit the occurrence of the phenomenon of locking the electrified grounding wire, so that in order to avoid the accident that when the grounding wire is temporarily hung and is not connected with the grounding pile, a microcomputer which controls the comprehensive operation system of the transformer substation possibly simulates switching on and supplying power when the grounding wire is removed, and further the accident such as switching on with the grounding wire or personal injury is caused, the temporary grounding wire is required to be comprehensively monitored so as to avoid the phenomenon of neglected installation and removal of the grounding wire, and the novel transformer substation temporary wiring misoperation-prevention locking system is provided.

As shown in fig. 3, the transformer substation temporary wiring anti-misoperation locking system proposed by the inventor comprises an industrial control host 1, a communication adapter 2 communicating with a microcomputer provided with a transformer substation integrated operation system, a computer key 3, a plurality of electric coded locks 4 matched with an electric control device M4 (such as a local-operation circuit breaker, an electric isolating switch and an electric grounding disconnecting link), and a plurality of mechanical coded locks 5 matched with a manual control device M5 (such as a manual isolating switch, a grounding disconnecting link, a grounding pile, a grid door and the like), and further comprises a new electric coded lock 6 matched with an electroscope pen M1, a first new mechanical coded lock 7 matched with a grounding wire M2, and a second new mechanical coded lock 8 matched with a grounding rod M3; wherein,

a locking logic program comprising an electroscope, a grounding wire and a grounding rod is written on the industrial control host 1 and is used for sending the locking logic program to the computer key 3;

the newly-added coded lock 6 comprises a first five-electricity-proof electronic coding piece 61 for generating a first code, which is arranged at the tail end of the test pencil M1 far away from the electric pencil point (as shown in FIG. 4), and is used for matching the generated first code with the code displayed when the computer key 3 is inserted into the newly-added coded lock 6, so that the computer key 3 detects the use state of the test pencil M1 according to a locking logic program; wherein the use state comprises normal and abnormal;

the first new mechanical coding lock 7 comprises a second five-prevention electronic coding piece (not shown) for generating a second code, wherein the second five-prevention electronic coding piece is meshed with or separated from a grounding end of a grounding wire M2 (as shown in FIG. 5), and the generated second code is matched with a code displayed when the computer key 3 is inserted into the first new mechanical coding lock 7, so that the computer key 3 controls the first new mechanical coding lock 7 to be unlocked or locked according to a locking logic program;

the second newly added mechanical coding lock 8 comprises a third five-prevention electronic coding piece (not shown) for generating a third code, which is meshed with or separated from one end of the grounding rod M3 (as shown in fig. 6), and the generated third code is matched with the code displayed when the computer key 3 is inserted into the second newly added mechanical coding lock 8, so that the computer key 3 controls the second newly added mechanical coding lock 8 to be unlocked or locked according to a locking logic program.

It should be noted that different locks and five-prevention electronic codes can be set for the grounding wire M2, the grounding rod M3 and the test pencil M1 with different voltage levels, so that the safety tool which is not in accordance with the voltage level can be prevented from being used by an operator by mistake, and accidents can be avoided; in addition, the number of the grounding wire M2 can also be incorporated into the substation integrated operation system, so that the operator can manage the grounding wire M2 conveniently. Meanwhile, the arrangement of a locking logic program comprising the electroscope pen M1, the grounding wire M2 and the grounding rod M3 makes the locking logic more complete; as an example, after the five-prevention electronic code is added to the test pencil M1, the pre-ground-knife prior electrical logic may be added to the original ground-knife lockout logic.

According to the regulations and regulations of the electrified safe operation of the power system, the locking logic program is set to be the logic program of the test pencil M1, the grounding wire M2 and the grounding rod M3 in turn. The following three conditions are carried out coding matching and processing on the electroscope, the grounding wire and the grounding rod in sequence according to the unlocking sequence:

(1) test pencil M1: when the generated first code is matched with the code displayed when the computer key 3 is inserted into the newly-added coded lock 6, the internal part of the computer key 3 is communicated with an operation loop at the moment, and the using state of the test pencil M1 is determined to be normal according to a locking logic program; when the generated first code is not matched with the code displayed when the computer key 3 is inserted into the newly-added coded lock 6, the computer key 3 refuses to switch on the operation loop and determines that the using state of the test pencil M1 is abnormal according to the locking logic program.

(2) Ground line M2: when the generated second code is matched with the code displayed by inserting the computer key 3 into the first newly-added mechanical code lock 7, the computer key 3 is internally connected with an operation loop at the moment, the first newly-added mechanical code lock 7 is controlled to be unlocked according to a locking logic program, and the grounding wire M2 is further allowed to be grounded; when the generated second code is not matched with the code displayed by the computer key 3 inserted into the first newly-added mechanical code lock 7, the computer key 3 is refused to be connected with the operation loop, the first newly-added mechanical code lock 7 is controlled to be locked according to the locking logic program, and alarm information is sent.

(3) Ground bar M3: when the generated third code is matched with the code displayed by inserting the computer key 3 into the second newly-added mechanical code lock 8, the computer key 3 is internally connected with an operation loop at the moment, the second newly-added mechanical code lock 8 is controlled to be unlocked according to a locking logic program, and the grounding rod M3 is further allowed to be connected with a clamping head on the grounding end of the grounding wire M2; when the generated third code is not matched with the code displayed by inserting the computer key 3 into the second newly-added mechanical code lock 8, the computer key 3 is internally refused to be connected with the operation loop, the second newly-added mechanical code lock 8 is controlled to be locked according to a locking logic program, and alarm information is sent out.

In order to be clear and intuitive, the electrical equipment which allows the assembly and disassembly of the grounding wire M2 can be listed automatically, and an operator selects the corresponding overhauling equipment and the number of the grounding wires M2, so that the microcomputer cancels all grounding pile marks in the displayed comprehensive substation operating system and integrates the grounding pile marks into a general grounding mark (as shown in figure 7), and when the microcomputer responds to the selection operation of a user on the general grounding mark and executes the selection of the general grounding mark, the total number of the grounding wires M2 and the information corresponding to each grounding wire M2 are transmitted to the industrial personal computer 1 through the communication adapter 2 and forwarded to the computer key 3.

As shown in fig. 8, an embodiment of the present invention further provides a detection method for a transformer substation temporary connection mislocking prevention system, where the detection method is implemented in the foregoing system, and the method includes:

s101, a computer key receives a locking logic program which comprises an electroscope, a grounding wire and a grounding rod and is sent by an industrial control host; the unlocking sequence of the locking logic program is that the test pencil, the grounding wire and the grounding rod are sequentially arranged and written into the industrial control host in advance;

the method also comprises the following steps before the step S101: the computer key receives and determines the total number of the grounding wires sent by the industrial control host and information corresponding to each grounding wire; the total number of the grounding wires and the information corresponding to each grounding wire are information which is displayed by the microcomputer, and is transmitted to the industrial control host through the communication adapter, wherein after the total number of the grounding wires and the information corresponding to each grounding wire are cancelled and integrated into a grounding total mark by the microcomputer, the microcomputer responds to the selection operation of a user on the grounding total mark, and executes the selection of the grounding total mark.

Step S102, in the operation process, the computer key is inserted into a newly-added coded lock matched with the test pencil, the matching condition of the displayed code and a first code generated by a first five-prevention electronic coding piece on the test pencil is detected, and the use state of the test pencil is judged according to the detection result and the locking logic program; wherein the usage status includes normal and abnormal;

in the operation process, when a computer key is inserted into a newly-added code lock matched with the test pencil, and the displayed code is matched with a first code generated by a first five-prevention electronic code chip, the use state of the test pencil is determined to be normal according to a locking logic program; when the computer key is inserted into the newly-added code lock matched with the test pencil, and the displayed code is not matched with the first code generated by the first five-prevention electronic code chip, the use state of the test pencil is determined to be abnormal according to the locking logic program.

Step S103, after the detected using state of the test pencil is normal, inserting the computer key into a first newly added mechanical coding lock matched with the grounding wire, detecting the matching condition of a displayed code and a second code generated by a second five-prevention electronic coding piece on the grounding wire, and controlling the first newly added mechanical coding lock to be unlocked or locked according to a detection result and the locking logic program;

after the use state of the test pencil to be detected is normal, when a computer key is inserted into a first newly-added mechanical coding lock matched with the grounding wire and a displayed code is matched with a second code generated by a second five-prevention electronic coding piece, controlling the first newly-added mechanical coding lock to be unlocked according to a locking logic program and further allowing the grounding wire to be grounded; when the computer key is inserted into the first newly-added mechanical coding lock matched with the grounding wire and the displayed code is not matched with the second code generated by the second five-prevention electronic coding piece, the first newly-added mechanical coding lock is controlled to be locked according to the locking logic program and alarm information is sent out.

And S104, after the first newly-added mechanical coded lock is unlocked, inserting the computer key into a second newly-added mechanical coded lock matched with the grounding rod, detecting the matching condition of the displayed code and a third code generated by a third five-prevention electronic code sheet on the grounding rod, and controlling the second newly-added mechanical coded lock to be unlocked or locked according to the detection result and the locking logic program.

After the first newly-added mechanical coded lock is unlocked, when a computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod and a displayed code of the computer key is matched with a third code generated by a third five-prevention electronic code chip, controlling the second newly-added mechanical coded lock to be unlocked according to a locking logic program and further allowing the grounding rod to be connected with a clamping head on the grounding end of the grounding wire; when a computer key is inserted into a second newly-added mechanical coded lock matched with the grounding rod, and the displayed code of the computer key is not matched with a third code generated by a third five-prevention electronic code sheet, the second newly-added mechanical coded lock is controlled to be locked according to a locking logic program, and alarm information is sent out.

As shown in fig. 9, an embodiment of the present invention further provides a computer key, including:

the logic program receiving unit 910 is used for receiving a locking logic program which is sent by the industrial control host and comprises an electroscope, a grounding wire and a grounding rod by a computer key; the unlocking sequence of the locking logic program is that the test pencil, the grounding wire and the grounding rod are sequentially arranged and written into the industrial control host in advance;

the detection unit 920 is used for inserting the computer key into a newly added electric code lock matched with the test pencil in the operation process, detecting the matching condition of the displayed code and a first code generated by a first five-prevention electronic code piece on the test pencil, and judging the use state of the test pencil according to the detection result and the locking logic program; wherein the usage status includes normal and abnormal;

the first control unit 930, configured to insert the computer key into a first newly added mechanical coding lock that is matched with the ground wire after the detected use state of the test pencil is normal, detect a matching condition between a displayed code of the computer key and a second code generated by a second five-prevention electronic coding chip on the ground wire, and control unlocking or locking of the first newly added mechanical coding lock according to a detection result and the locking logic program;

and the second control unit 940 is used for inserting the computer key into a second newly-added mechanical coding lock matched with the grounding rod after the first newly-added mechanical coding lock is unlocked, detecting the matching condition of the displayed code and a third code generated by a third five-prevention electronic coding chip on the grounding rod, and controlling the unlocking or locking of the second newly-added mechanical coding lock according to the detection result and the locking logic program.

Wherein, the detecting unit 920 includes:

the first detection module 9201 is used for determining that the using state of the test pencil is normal according to the locking logic program when the displayed code of the computer key is matched with the first code generated by the first five-prevention electronic code piece when the computer key is inserted into a newly added power code lock matched with the test pencil;

and the second detection module 9202 is used for determining that the using state of the test pencil is abnormal according to the locking logic program when the displayed code of the computer key is not matched with the first code generated by the first five-prevention electronic code piece when the computer key is inserted into a newly added power code lock matched with the test pencil.

Wherein the first control unit 930 includes:

a first unlocking module 9301 for controlling the first new mechanical coding lock to unlock according to the locking logic program and further allowing the grounding wire to be grounded when the computer key is inserted into the first new mechanical coding lock matched with the grounding wire and the displayed code thereof matches with the second code generated by the second five-prevention electronic coding chip;

the first locking module 9302 is configured to, when the computer key is inserted into a first newly added mechanical coded lock that is coupled to the ground line and a displayed code of the first newly added mechanical coded lock is not matched with a second code generated by the second five-prevention electronic code chip, control the first newly added mechanical coded lock to be locked according to the locking logic program and send an alarm message.

Wherein the second control unit 940 includes:

a second unlocking module 9401, configured to control unlocking of the second newly added mechanical coded lock according to the locking logic program when the computer key is inserted into a second newly added mechanical coded lock that is engaged with the ground rod and a displayed code of the second newly added mechanical coded lock matches a third code generated by the third five-prevention electronic code chip, and further allow the ground rod to be connected to a chuck on the ground end of the ground wire;

and the second locking module 9402 is used for controlling the second newly-added mechanical coded lock to be locked according to the locking logic program and sending alarm information when the computer key is inserted into the second newly-added mechanical coded lock matched with the grounding rod and the displayed code of the second newly-added mechanical coded lock is not matched with the third code generated by the third five-prevention electronic coded chip.

Wherein, computer key still includes:

The embodiment of the invention has the following beneficial effects:

4. In the embodiment of the invention, the new main wiring diagram in the comprehensive operation system of the transformer substation is adopted to cancel the grounding pile mark and integrate the grounding pile mark into a grounding total mark, so that the whole wiring diagram becomes clear and intuitive.

It should be noted that, in the foregoing system embodiment, each included system unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.

It will be understood by those skilled in the art that all or part of the steps in the method for implementing the above embodiments may be implemented by relevant hardware instructed by a program, and the program may be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A transformer substation temporary wiring anti-misoperation locking system comprises an industrial control host, a communication adapter communicated with a microcomputer provided with a transformer substation comprehensive operation system, a computer key, a plurality of electric coded locks matched with electric control equipment and a plurality of mechanical coded locks matched with manual control equipment, and is characterized by further comprising a newly added electric coded lock matched with an electroscope, a first newly added mechanical coded lock matched with a grounding wire and a second newly added mechanical coded lock matched with a grounding rod; wherein,

2. The substation temporary connection mis-locking prevention system of claim 1, wherein the unlocking sequence of the locking logic program is the electroscope, the ground wire and the ground rod in sequence.

3. The substation temporary connection anti-misoperation locking system according to claim 2, wherein when the generated first code matches with the code displayed when the computer key is inserted into the newly added coded lock, the computer key is enabled to determine that the test pencil is in a normal use state according to the locking logic program; and when the generated first code is not matched with the code displayed when the computer key is inserted into the newly added coded lock, the computer key determines that the using state of the electroscope pen is abnormal according to the locking logic program.

4. The substation patch cord mis-locking prevention system of claim 3, wherein when the generated second code matches a code displayed when the computer key is inserted into the first newly added mechanical code lock, the computer key is enabled to control the first newly added mechanical code lock to be unlocked according to the locking logic program and further allow the grounding wire to be grounded; when the generated second code is not matched with the code displayed by the computer key inserted into the first newly added mechanical code lock, the computer key controls the first newly added mechanical code lock to be locked according to the locking logic program and sends alarm information.

5. The substation temporary connection mis-locking prevention system of claim 4, wherein when the generated third code matches the code displayed when the computer key is inserted into the second newly added mechanical code lock, the computer key is enabled to control the second newly added mechanical code lock to be unlocked according to the locking logic program, and further allows the grounding rod to be connected with the chuck on the grounding wire grounding end; and when the generated third code is not matched with the code displayed by inserting the computer key into the second newly-added mechanical code lock, the computer key controls the second newly-added mechanical code lock to be locked according to the locking logic program and sends alarm information.

6. The substation temporary wiring anti-misoperation lockout system of claim 1, wherein the microcomputer cancels and integrates all grounding pile identifications in the substation integrated operation system displayed by the microcomputer into a grounding total identification.

7. A detection method of a temporary wiring mislocking system of a substation, which is implemented in the temporary wiring mislocking system of a substation according to any one of claims 1 to 6, the method comprising:

8. The method as claimed in claim 7, wherein the step b of inserting the computer key into a new power-added coded lock matched with the test pencil, detecting the matching condition between the code displayed by the computer key and the first code generated by the first five-prevention electronic coding chip on the test pencil, and determining the using state of the test pencil according to the detection result and the locking logic program includes the specific steps of:

9. The method as claimed in claim 7, wherein the step c of inserting the computer key into a first new mechanical coding lock cooperating with the ground wire, detecting a matching condition between a code displayed by the computer key and a second code generated by a second five-prevention electronic coding chip on the ground wire, and controlling the unlocking or locking of the first new mechanical coding lock according to the detection result and the locking logic program includes the specific steps of:

10. The detecting method according to claim 7, wherein the step d of inserting the computer key into a second newly added mechanical coding lock matched with the grounding rod, detecting a matching condition between a code displayed by the computer key and a third code generated by a third five-prevention electronic coding chip on the grounding rod, and controlling the unlocking or locking of the second newly added mechanical coding lock according to the detection result and the locking logic program includes the specific steps of:

11. The detection method according to claim 7, wherein the step a further comprises, before the step b, the steps of:

12. A computer key, comprising:

13. The computer key of claim 12, wherein the detection unit comprises:

14. The computer key of claim 12, wherein the first control unit comprises:

15. The computer key of claim 12, wherein said second control unit comprises:

16. The computer key of claim 12, further comprising: