CN112614718A - Circuit breaker misoperation prevention locking method and system - Google Patents
Circuit breaker misoperation prevention locking method and system Download PDFInfo
- Publication number
- CN112614718A CN112614718A CN202011239731.3A CN202011239731A CN112614718A CN 112614718 A CN112614718 A CN 112614718A CN 202011239731 A CN202011239731 A CN 202011239731A CN 112614718 A CN112614718 A CN 112614718A
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- circuit breaker
- locking device
- authentication
- authentication information
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000002265 prevention Effects 0.000 title description 5
- 238000004891 communication Methods 0.000 claims abstract description 23
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
- G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
- H01H2071/7472—Means for adjusting the conditions under which the device will function to provide protection with antitamper means for avoiding unauthorised setting
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a method and a system for preventing misoperation and locking of a circuit breaker, wherein the method comprises the following steps: the identification unit identifies the power-on state of the circuit breaker; the circuit breaker locking device is in wireless communication connection with an administrator terminal; when the circuit breaker locking device receives an unlocking request signal sent by an administrator terminal, if the circuit breaker is in a power-on state, an authentication unit of the circuit breaker locking device generates and stores authentication information and sends the authentication information to the administrator terminal; the authentication unit acquires authentication information input by an administrator and compares the authentication information with the stored authentication information; if the same authentication information exists, the authentication unit sends an unlocking command to a locking device of the circuit breaker locking device; if not, the alarm unit starts an alarm and sends alarm information to the remote management terminal. The invention ensures that only relevant personnel can operate the normally-operated circuit breaker, furthest avoids the circuit breaker accident caused by the operation of irrelevant personnel, and ensures the stable operation of power facilities in the normal operation.
Description
Technical Field
The invention relates to the field of safe operation of electric power facilities, in particular to a method and a system for preventing misoperation and locking of a circuit breaker.
Background
In the technical field of power system safety, five aspects (short for five-prevention) are particularly emphasized in the anti-misoperation locking operation, namely, the circuit breaker (switch) is prevented from being opened and closed by mistake; the isolating switch is prevented from being switched on and off under load; preventing the charged hanging (closing) of a grounding wire (a grounding switch); preventing power transmission with ground wire; prevent the wrong entering into the electrified interval. The last four conditions can realize misoperation prevention through forced locking measures, such as mechanical interlocking, electrical interlocking or microcomputer five-prevention and other technical measures, and the 'preventing of mistakenly opening and closing the circuit breaker (switch)' only has prompt measures for technical reasons, and no effective technical means is available for locking the misoperation of the circuit breaker, so that the risk of mistakenly opening and closing the circuit breaker (switch) exists.
The anti-misoperation locking device can prevent safety accidents and ensure the personal safety of workers, but if the workers go wrong due to negligence and do not confirm the equipment numbers, the possibility of power failure caused by closing the normally operated equipment can exist, the possibility of misoperation of the normally operated circuit breaker by non-specified people also exists, and in the occasion with more circuit breakers, if the anti-misoperation locking device cannot effectively manage the circuit breaker, the misoperation can be easily caused to cause safety accidents.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present invention provides a method and a system for preventing misoperation and locking of a circuit breaker, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a method for controlling a circuit breaker anti-misoperation locking system, including:
the identification unit identifies the power-on state of the circuit breaker;
the circuit breaker locking device is in wireless communication connection with an administrator terminal;
when the circuit breaker locking device receives an unlocking request signal sent by an administrator terminal, if the circuit breaker is in a power-on state, an authentication unit of the circuit breaker locking device generates and stores authentication information and sends the authentication information to the administrator terminal;
the authentication unit acquires authentication information input by an administrator and compares the authentication information with the stored authentication information;
if the same authentication information exists, the authentication unit sends an unlocking command to a locking device of the circuit breaker locking device;
if the authentication information does not have the same authentication information, the alarm unit starts an alarm and sends alarm information to the remote management terminal.
Further, the method further comprises:
the identification unit sends alarm information to the remote management terminal when identifying that the breaker is changed from the power-on state to the power-off state.
Further, the method further comprises:
the circuit breaker locking device receives the unlocking request signal, and if the circuit breaker is in a power-off state, the authentication unit directly sends an unlocking command to the locking device.
Further, the method further comprises:
the authentication information is formed by combining the dynamic authentication code generated by the authentication unit and the equipment code of the circuit breaker.
In a second aspect, the present invention provides a circuit breaker anti-misoperation lockout system, the system comprising:
the device comprises a communication unit, an identification unit, an authentication unit, an alarm unit, a locking device and a power supply.
The communication unit is used for establishing wireless communication connection between the circuit breaker locking device and an administrator terminal and between the circuit breaker locking device and a remote management terminal; the identification unit is used for identifying the electrifying state of the circuit breaker; the authentication unit is arranged for generating, storing and receiving authentication information; the alarm unit is used for starting an alarm and sending alarm information to the remote management terminal; the locking device is arranged on a shell of the locking device of the switch circuit breaker and is electrically connected with the authentication unit; a power supply is provided for supplying power to the units of the circuit breaker lockout device.
Further, the authentication information:
the dynamic authentication code generated by the authentication unit is formed in combination with the device code of the circuit breaker.
Further, the system further comprises:
the two-dimensional code corresponding to the equipment code of the circuit breaker is arranged outside the circuit breaker locking device, so that the manager terminal can identify the equipment code of the circuit breaker by scanning the two-dimensional code.
Further, the system further comprises:
the power module uses a battery to supply power to the various units of the circuit breaker lockout device.
Further, the communication unit includes:
bluetooth, NFC, mobile data communication module.
The beneficial effect of the invention is that,
when the circuit breaker is in a normal operation power-on state, the circuit breaker misoperation preventing locking device sends and receives authentication information to an administrator terminal, and compares the authentication information to ensure that only relevant personnel can operate the circuit breaker in normal operation, so that the accident of mistakenly breaking the circuit breaker caused by the operation of the irrelevant personnel is avoided to the maximum extent, and the stable operation of power facilities in normal operation is ensured. When the breaker is in a power-off state such as tripping, the anti-misoperation locking device of the breaker can be directly opened only by sending a request by the administrator terminal without authentication, so that the operation of irrelevant personnel is avoided, and convenience is brought to the faster overhaul of the administrator.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a device housing according to an embodiment of the present invention.
The circuit breaker comprises a circuit breaker body, a shell, a circuit breaker code 1, an authentication unit 2, an authentication unit 3 and a card slot 4.
Fig. 2 is a schematic view of the internal structure of the apparatus according to an embodiment of the present invention.
The system comprises a communication unit 5, an identification unit 6, an alarm unit 7, a locking device 8 and a power supply 9.
FIG. 3 is a flow chart of a method of one embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a circuit breaker anti-misoperation locking system, which is characterized in that the system includes:
the circuit breaker comprises a code 1 of the circuit breaker, an authentication unit 2, a shell 3, a card slot 4, a communication unit 5, an identification unit 6, an alarm unit 7, a locking device 8 and a power supply 9.
The method comprises the following steps that a code 1 of the circuit breaker is arranged on a shell 3 of a circuit breaker locking device in a two-dimensional code mode, so that an administrator terminal can identify an equipment code of the circuit breaker by scanning the two-dimensional code; the communication unit 5 comprises a Bluetooth module, an NFC (near Field communication) module and a mobile data communication module, and is used for establishing wireless communication connection between the circuit breaker locking device and the administrator terminal and the remote management terminal respectively; the recognition unit 6 is provided for recognizing the energization state of the circuit breaker; the authentication unit 2 is arranged for generating, storing and receiving authentication information formed by combining a dynamic authentication code generated by the authentication unit with a device code of the circuit breaker; the alarm unit 7 is arranged for starting an alarm and sending alarm information to the remote management terminal; the locking device 8 is arranged on the shell 3 of the locking device of the switch circuit breaker and is electrically connected with the authentication unit 2; the power supply 9 is arranged by using a storage battery and used for supplying power to each unit of the circuit breaker locking device so as to ensure that the continuous operation of the misoperation prevention locking system of the circuit breaker is maintained under the condition that the circuit breaker is powered off; the shell 3 is provided with a locking device 8 of which the clamping groove 4 corresponds to a circuit breaker locking system, and the locking device 8 is used for preventing the shell 3 from being opened because the clamping groove 4 is blocked in a locking state.
Example 2
Referring to fig. 3, the present embodiment provides a method for controlling a locking system of a circuit breaker against misoperation, including:
the identification unit of the anti-misoperation locking system of the circuit breaker identifies the power-on state of the circuit breaker in real time, if the circuit breaker is changed from the power-on state to the power-off state under normal conditions, the system judges that the circuit breaker has faults such as tripping or short circuit of other power equipment, and the circuit breaker locking system sends alarm information to a remote management terminal to inform that the circuit breaker has power-off faults such as tripping.
The method comprises the steps that an administrator terminal identifies equipment codes of a circuit breaker by scanning two-dimensional codes at a shell, wherein the two-dimensional codes correspond to the equipment codes of the circuit breaker, and one-to-one wireless communication connection is established between the two-dimensional codes and a circuit breaker misoperation prevention locking system through a Bluetooth, NFC or mobile data communication module;
the method comprises the steps that an administrator sends an unlocking request signal to a circuit breaker locking system through an administrator terminal;
when the circuit breaker locking device receives an unlocking request signal sent by an administrator terminal, if the circuit breaker is in a power-off state, the authentication unit directly sends an unlocking command to the locking device, so that the administrator can directly open a shell of a circuit breaker locking system and perform maintenance operation on the circuit breaker and a circuit;
if the circuit breaker is in a normally-operated power-on state, when the circuit breaker locking system receives an unlocking request signal sent by an administrator terminal, judging that the administrator needs to operate the circuit breaker and a circuit, and in order to confirm the operation of the administrator, performing safety authentication on the administrator terminal by using a circuit breaker locking device, so that an authentication unit of the circuit breaker locking system generates and stores authentication information and sends the authentication information to the administrator terminal, wherein the authentication information is formed by combining a dynamic authentication code generated by the authentication unit and an equipment code of the circuit breaker;
after receiving the authentication information, the administrator terminal displays the temporary authentication code in the authentication information and the equipment code of the circuit breaker on a screen of the administrator terminal so that an administrator can confirm the temporary authentication code and the equipment code;
the method comprises the steps that an administrator inputs authentication information in an authentication unit of the circuit breaker locking system, and the authentication unit acquires the authentication information input by the administrator and compares the authentication information with stored authentication information;
if the stored authentication information contains the same authentication information, the authentication unit sends an unlocking command to a locking device of the circuit breaker locking device, and the shell of the circuit breaker locking device can be opened;
if the authentication information does not exist, the alarm unit starts an alarm and sends alarm information to the remote management terminal so as to prevent an operator from operating other circuit breaker locking systems due to human negligence after receiving the authentication information.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description in the method embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, systems or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method of controlling a circuit breaker anti-misoperation lockout system, the method comprising:
the identification unit identifies the power-on state of the circuit breaker;
the circuit breaker locking device is in wireless communication connection with an administrator terminal;
when the circuit breaker locking device receives an unlocking request signal sent by an administrator terminal, if the circuit breaker is in a power-on state, an authentication unit of the circuit breaker locking device generates and stores authentication information and sends the authentication information to the administrator terminal;
the authentication unit acquires authentication information input by an administrator and compares the authentication information with the stored authentication information;
if the same authentication information exists, the authentication unit sends an unlocking command to a locking device of the circuit breaker locking device;
if the authentication information does not have the same authentication information, the alarm unit starts an alarm and sends alarm information to the remote management terminal.
2. The method of claim 1, further comprising:
the identification unit sends alarm information to the remote management terminal when identifying that the breaker is changed from the power-on state to the power-off state.
3. The method of claim 1, further comprising:
the circuit breaker locking device receives the unlocking request signal, and if the circuit breaker is in a power-off state, the authentication unit directly sends an unlocking command to the locking device.
4. The method of claim 1, further comprising:
the authentication information is formed by combining the dynamic authentication code generated by the authentication unit and the equipment code of the circuit breaker.
5. A circuit breaker anti-maloperation lockout system, the system comprising:
the device comprises a communication unit, an identification unit, an authentication unit, an alarm unit, a locking device and a power supply.
The communication unit is used for establishing wireless communication connection between the circuit breaker locking device and an administrator terminal and between the circuit breaker locking device and a remote management terminal; the identification unit is used for identifying the electrifying state of the circuit breaker; the authentication unit is arranged for generating, storing and receiving authentication information; the alarm unit is used for starting an alarm and sending alarm information to the remote management terminal; the locking device is arranged on a shell of the locking device of the switch circuit breaker and is electrically connected with the authentication unit; a power supply is provided for supplying power to the units of the circuit breaker lockout device.
6. The system of claim 5, wherein the authentication information:
the dynamic authentication code generated by the authentication unit is formed in combination with the device code of the circuit breaker.
7. The system of claim 5, further comprising:
the two-dimensional code corresponding to the equipment code of the circuit breaker is arranged outside the circuit breaker locking device, so that the administrator terminal can identify the equipment code of the circuit breaker by scanning the two-dimensional code.
8. The system of claim 5, further comprising:
the power module uses a battery to supply power to the various units of the circuit breaker lockout device.
9. The system of claim 5, wherein the communication unit comprises:
bluetooth, NFC, mobile data communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239731.3A CN112614718B (en) | 2020-11-09 | 2020-11-09 | Misoperation-preventing locking method and system for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239731.3A CN112614718B (en) | 2020-11-09 | 2020-11-09 | Misoperation-preventing locking method and system for circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112614718A true CN112614718A (en) | 2021-04-06 |
| CN112614718B CN112614718B (en) | 2024-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011239731.3A Active CN112614718B (en) | 2020-11-09 | 2020-11-09 | Misoperation-preventing locking method and system for circuit breaker |
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| CN1414584A (en) * | 2002-09-10 | 2003-04-30 | 淄博通用电器研究所 | Electron linkage fastener and its working process |
| US20030123209A1 (en) * | 2001-12-31 | 2003-07-03 | Kim Ki Young | Remote controller of circuit breaker |
| CN201498885U (en) * | 2009-08-31 | 2010-06-02 | 宁波电业局 | Electric power system faulty operation preventing device based on wireless communication |
| US20100141050A1 (en) * | 2006-10-02 | 2010-06-10 | Kabushiki Kaisha Toshiba | Switching control system of circuit breaker |
| CN201868947U (en) * | 2010-08-30 | 2011-06-15 | 珠海优特电力科技股份有限公司 | Anti-misoperation lock-out system |
| CN107610956A (en) * | 2017-08-21 | 2018-01-19 | 国网山东省电力公司济南供电公司 | A kind of breaker anti-maloperation blocking device and method |
| CN110956779A (en) * | 2019-12-12 | 2020-04-03 | 华润电力（宜昌）有限公司 | Safety warning method and device for switch cabinet and storage medium |
-
2020
- 2020-11-09 CN CN202011239731.3A patent/CN112614718B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030123209A1 (en) * | 2001-12-31 | 2003-07-03 | Kim Ki Young | Remote controller of circuit breaker |
| CN1414584A (en) * | 2002-09-10 | 2003-04-30 | 淄博通用电器研究所 | Electron linkage fastener and its working process |
| US20100141050A1 (en) * | 2006-10-02 | 2010-06-10 | Kabushiki Kaisha Toshiba | Switching control system of circuit breaker |
| CN201498885U (en) * | 2009-08-31 | 2010-06-02 | 宁波电业局 | Electric power system faulty operation preventing device based on wireless communication |
| CN201868947U (en) * | 2010-08-30 | 2011-06-15 | 珠海优特电力科技股份有限公司 | Anti-misoperation lock-out system |
| CN107610956A (en) * | 2017-08-21 | 2018-01-19 | 国网山东省电力公司济南供电公司 | A kind of breaker anti-maloperation blocking device and method |
| CN110956779A (en) * | 2019-12-12 | 2020-04-03 | 华润电力（宜昌）有限公司 | Safety warning method and device for switch cabinet and storage medium |
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| Publication number | Publication date |
|---|---|
| CN112614718B (en) | 2024-07-02 |
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