CN112366819A - Secondary circuit module based on circuit breaker mechanism - Google Patents
Secondary circuit module based on circuit breaker mechanism Download PDFInfo
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- CN112366819A CN112366819A CN202011076800.3A CN202011076800A CN112366819A CN 112366819 A CN112366819 A CN 112366819A CN 202011076800 A CN202011076800 A CN 202011076800A CN 112366819 A CN112366819 A CN 112366819A
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- circuit breaker
- control unit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
- H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/40—Display of information, e.g. of data or controls
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Abstract
The invention discloses a secondary circuit module based on a breaker mechanism, which comprises: the intelligent control system comprises a master control unit, a self-checking module, a switching-on/off control module, a first tripping module, a second tripping module, a state monitoring module, a motor control module, a temperature and humidity control module and an intelligent management module, wherein the master control unit is communicated with a control system through an IEC61850 communication protocol by utilizing a network cable or an optical fiber; the general control unit integrates control logic and five-prevention logic to integrally control the circuit breaker, and is provided with a debugging interface, interfaces with a field test system and is used for performing function debugging on each module. The embodiment of the invention realizes the traditional secondary circuit by using the terminal strip through electronic devices such as a printed circuit board, and the like, and simultaneously divides the secondary circuit into different modules according to the function region and packages the modules, thereby greatly reducing the time for checking and recovering the secondary circuit faults and defects and having great practical application value.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a secondary circuit module based on a circuit breaker mechanism.
Background
The circuit breaker is an important protection device of a power grid, is extremely widely applied to various transformer substations, and a secondary control circuit for circuit breaking mostly adopts original parts such as terminal blocks and the like, is complex in wiring, and is easy to cause faults or defects caused by miswiring. Meanwhile, the reliability of the terminal block wiring cannot be guaranteed, and the workload of troubleshooting and maintenance of secondary faults is also large. Therefore, secondary defects and failures of the circuit breaker mechanism have long been one of the important problems troubling the operators of the power grid. Therefore, optimizing the secondary control circuit of the circuit breaker mechanism has important significance for improving the reliability of the secondary circuit and reducing the time for overhauling and maintaining.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a secondary circuit module based on a circuit breaker mechanism, which realizes the traditional secondary circuit using a terminal strip through electronic devices such as a printed circuit board, and the like, and simultaneously divides the secondary circuit into different modules according to functions and encapsulates the modules, so that the fault and defect detection and recovery time of the secondary circuit can be greatly reduced, and the secondary circuit module has great practical application value.
In order to solve the above technical problem, an embodiment of the present invention provides a secondary circuit module based on a circuit breaker mechanism, where the secondary circuit module includes: including total accuse unit, self-checking module, divide closing control module, first tripping operation module, second tripping operation module, state monitoring module, motor control module, temperature and humidity control module and intelligent management module, wherein:
the self-checking module is connected with the master control unit through a CAN bus; the switching-on and switching-off control module is connected with the master control unit through a CAN bus; the first tripping module is connected with the master control unit through a CAN bus; the second tripping module is connected with the master control unit through a CAN bus; the state monitoring module is connected with the master control unit through a CAN bus; the motor control module is connected with the master control unit through a CAN bus; the temperature and humidity control module and the intelligent management module are connected with the master control unit through a CAN bus;
the master control unit is communicated with the control system through an IEC61850 communication protocol by utilizing a network cable or an optical fiber; the general control unit integrates control logic and five-prevention logic to integrally control the circuit breaker, and is provided with a debugging interface, interfaces with a field test system and is used for performing function debugging on each module.
The self-checking module, the opening and closing control module, the first tripping module, the second tripping module, the state monitoring module, the motor control module, the temperature and humidity control module and the intelligent management module are designed in a trapezoidal mode, and the interface sizes of the modules are different.
The self-checking module is used for detecting timing functions of the modules, performing fault double confirmation by adopting two sets of different algorithms based on a detection period, and providing fault signals corresponding to the modules to be uploaded to the master control unit;
the self-checking module monitors the self state in real time and immediately sends a signal to the master control unit when a fault occurs in monitoring; after receiving the fault signal, the master control unit immediately reports the fault to the background and sends a fault indication signal to the corresponding module, and the fault indication lamp of the corresponding module is turned on.
The switching-on and switching-off control module has the function of automatically detecting the integrity of a switching-on loop and a switching-off loop under the condition that the circuit breaker normally operates; the switching-on and switching-off control module respectively detects current detection of switching-on and switching-off coils in the operation process of the circuit breaker, and simultaneously records and compares the operation sequence and the time sequence of the circuit breaker to judge the integrity of each combined loop; the switching-on and switching-off control module is provided with a circuit breaker operation count: counting an A-phase circuit breaker, counting a B-phase circuit breaker, counting a C-phase circuit breaker and counting a motor, accumulating the action times of a split-phase circuit breaker and the motor, having a function of counting power failure and saving, and changing a current value by combining fixed value setting with a local command; the closing control module monitors a closing input signal and gives an alarm when the closing signal exists for a long time.
The first tripping module and the second tripping module receive a relay protection system signal through the master control unit to perform tripping protection and reclosing actions of the circuit breaker; the opening and closing action time of three phases of the circuit breaker is monitored simultaneously, and the inconsistent action protection of the three phases of the circuit breaker is realized; the first tripping module and the second tripping module are backups of each other, the circuit breaker is controlled by the first tripping module under the default condition, and the control right is switched to the second module by the master control unit when the first tripping module breaks down.
The state monitoring module monitors various states of the breaker mechanism, including acceleration and stroke of a stroke sensor preset by primary equipment, judges the state of the mechanism, and sends out an alarm signal when the state exceeds a preset range.
The motor control module controls the working state of the mechanism energy storage motor and has the functions of locked-rotor current limiting and thermal relay protection in the operation process; the system has a real-time mechanism position acquisition function and performs mechanism on-site logic judgment; the motor state monitoring function is achieved, the running state of the motor is judged by monitoring the current and the temperature of the motor, and early warning is carried out on motor faults.
The temperature and humidity control module collects signals of temperature and humidity in the mechanism box through the sensor and sets temperature and humidity control ranges by using numbers according to the temperature control and dehumidification requirements of the power equipment.
The intelligent management module is internally provided with a memory, records the action time and state of the breaker each time, records signals such as alarms and faults sent by other modules and has a USB interface to support data reading; the intelligent management module is provided with a display screen and is used for displaying information such as the state of the circuit breaker and whether the secondary circuit is electrified on line; the intelligent management module is provided with a communication unit, performs information transmission with a background, and is also provided with a debugging interface to support the function test of the field module.
The embodiment of the invention divides and encapsulates the secondary control loop of the breaker mechanism by functions, which are respectively as follows: the intelligent control system comprises a master control unit, a self-checking module, a switching-on/off control module, a first tripping module, a second tripping module, a state monitoring module, a motor control module, a temperature and humidity control module and an intelligent management module. And each module is mutually independently packaged, has independent functions and is convenient for fault location and replacement. The modules are in different sizes, the appearance is irregularly designed, and the phenomenon that different modules are connected in error and the same module is connected in reverse is avoided. The invention replaces the traditional secondary element by the miniaturized electronic device, adopts the integrated and modularized design, can greatly simplify the secondary wiring of the mechanism, greatly shortens the overhaul and replacement time of the secondary part, simultaneously prevents the circuit from being misconnected by the secondary module encapsulation, plays a role in protecting the secondary element, and plays an important role in reducing the secondary fault of the circuit breaker.
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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a secondary circuit module based on a circuit breaker mechanism in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
The embodiment of the invention provides a secondary circuit module based on a breaker mechanism, which comprises: including total accuse unit, self-checking module, divide closing control module, first tripping operation module, second tripping operation module, state monitoring module, motor control module, temperature and humidity control module and intelligent management module, wherein:
the self-checking module is connected with the master control unit through a CAN bus; the switching-on and switching-off control module is connected with the master control unit through a CAN bus; the first tripping module is connected with the master control unit through a CAN bus; the second tripping module is connected with the master control unit through a CAN bus; the state monitoring module is connected with the master control unit through a CAN bus; the motor control module is connected with the master control unit through a CAN bus; the temperature and humidity control module and the intelligent management module are connected with the master control unit through a CAN bus;
the master control unit is communicated with the control system through an IEC61850 communication protocol by utilizing a network cable or an optical fiber; the general control unit integrates control logic and five-prevention logic to integrally control the circuit breaker, and is provided with a debugging interface, interfaces with a field test system and is used for performing function debugging on each module.
The self-checking module, the opening and closing control module, the first tripping module, the second tripping module, the state monitoring module, the motor control module, the temperature and humidity control module and the intelligent management module are designed in a trapezoidal mode, and the interface sizes of the modules are different.
The self-checking module is used for detecting timing functions of the modules, performing fault double confirmation by adopting two sets of different algorithms based on a detection period, and providing fault signals corresponding to the modules to be uploaded to the master control unit;
the self-checking module monitors the self state in real time and immediately sends a signal to the master control unit when a fault occurs in monitoring; after receiving the fault signal, the master control unit immediately reports the fault to the background and sends a fault indication signal to the corresponding module, and the fault indication lamp of the corresponding module is turned on.
The switching-on and switching-off control module has the function of automatically detecting the integrity of a switching-on loop and a switching-off loop under the condition that the circuit breaker normally operates; the switching-on and switching-off control module respectively detects current detection of switching-on and switching-off coils in the operation process of the circuit breaker, and simultaneously records and compares the operation sequence and the time sequence of the circuit breaker to judge the integrity of each combined loop; the switching-on and switching-off control module is provided with a circuit breaker operation count: counting an A-phase circuit breaker, counting a B-phase circuit breaker, counting a C-phase circuit breaker and counting a motor, accumulating the action times of a split-phase circuit breaker and the motor, having a function of counting power failure and saving, and changing a current value by combining fixed value setting with a local command; the closing control module monitors a closing input signal and gives an alarm when the closing signal exists for a long time.
The first tripping module and the second tripping module receive a relay protection system signal through the master control unit to perform tripping protection and reclosing actions of the circuit breaker; the opening and closing action time of three phases of the circuit breaker is monitored simultaneously, and the inconsistent action protection of the three phases of the circuit breaker is realized; the first tripping module and the second tripping module are backups of each other, the circuit breaker is controlled by the first tripping module under the default condition, and the control right is switched to the second module by the master control unit when the first tripping module breaks down.
The state monitoring module monitors various states of the breaker mechanism, including acceleration and stroke of a stroke sensor preset by primary equipment, judges the state of the mechanism, and sends out an alarm signal when the state exceeds a preset range.
The motor control module controls the working state of the mechanism energy storage motor and has the functions of locked-rotor current limiting and thermal relay protection in the operation process; the system has a real-time mechanism position acquisition function and performs mechanism on-site logic judgment; the motor state monitoring function is achieved, the running state of the motor is judged by monitoring the current and the temperature of the motor, and early warning is carried out on motor faults.
The temperature and humidity control module collects signals of temperature and humidity in the mechanism box through the sensor and sets temperature and humidity control ranges by using numbers according to the temperature control and dehumidification requirements of the power equipment.
The intelligent management module is internally provided with a memory, records the action time and state of the breaker each time, records signals such as alarms and faults sent by other modules and has a USB interface to support data reading; the intelligent management module is provided with a display screen and is used for displaying information such as the state of the circuit breaker and whether the secondary circuit is electrified on line; the intelligent management module is provided with a communication unit, performs information transmission with a background, and is also provided with a debugging interface to support the function test of the field module.
The embodiment of the invention divides and encapsulates the secondary control loop of the breaker mechanism by functions, which are respectively as follows: the intelligent control system comprises a master control unit, a self-checking module, a switching-on/off control module, a first tripping module, a second tripping module, a state monitoring module, a motor control module, a temperature and humidity control module and an intelligent management module. And each module is mutually independently packaged, has independent functions and is convenient for fault location and replacement. The modules are in different sizes, the appearance is irregularly designed, and the phenomenon that different modules are connected in error and the same module is connected in reverse is avoided. The invention replaces the traditional secondary element by the miniaturized electronic device, adopts the integrated and modularized design, can greatly simplify the secondary wiring of the mechanism, greatly shortens the overhaul and replacement time of the secondary part, simultaneously prevents the circuit from being misconnected by the secondary module encapsulation, plays a role in protecting the secondary element, and plays an important role in reducing the secondary fault of the circuit breaker.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, or the like.
In addition, the above embodiments of the present invention are described in detail, and the principle and the implementation manner of the present invention should be described herein by using specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A secondary circuit module based on a circuit breaker mechanism, the secondary circuit module comprising: including total accuse unit, self-checking module, divide closing control module, first tripping operation module, second tripping operation module, state monitoring module, motor control module, temperature and humidity control module and intelligent management module, wherein:
the self-checking module is connected with the master control unit through a CAN bus; the switching-on and switching-off control module is connected with the master control unit through a CAN bus; the first tripping module is connected with the master control unit through a CAN bus; the second tripping module is connected with the master control unit through a CAN bus; the state monitoring module is connected with the master control unit through a CAN bus; the motor control module is connected with the master control unit through a CAN bus; the temperature and humidity control module and the intelligent management module are connected with the master control unit through a CAN bus;
the master control unit is communicated with the control system through an IEC61850 communication protocol by utilizing a network cable or an optical fiber; the general control unit integrates control logic and five-prevention logic to integrally control the circuit breaker, and is provided with a debugging interface, interfaces with a field test system and is used for performing function debugging on each module.
2. The circuit breaker mechanism based secondary circuit module of claim 1,
the self-checking module, the opening and closing control module, the first tripping module, the second tripping module, the state monitoring module, the motor control module, the temperature and humidity control module and the intelligent management module are designed in a trapezoidal mode, and the interface sizes of the modules are different.
3. The secondary circuit module based on the circuit breaker mechanism as claimed in claim 2, wherein the self-checking module is used for timing function detection of each module, fault double confirmation is performed by adopting two different algorithms based on a detection period, and a fault signal corresponding to each module is given and uploaded to the master control unit;
the self-checking module monitors the self state in real time and immediately sends a signal to the master control unit when a fault occurs in monitoring; after receiving the fault signal, the master control unit immediately reports the fault to the background and sends a fault indication signal to the corresponding module, and the fault indication lamp of the corresponding module is turned on.
4. The secondary circuit module based on the circuit breaker mechanism as claimed in claim 3, wherein the switching-on/off control module has a function of automatically detecting the integrity of the switching-on/off circuit under the condition that the circuit breaker is in normal operation; the switching-on and switching-off control module respectively detects current detection of switching-on and switching-off coils in the operation process of the circuit breaker, and simultaneously records and compares the operation sequence and the time sequence of the circuit breaker to judge the integrity of each combined loop; the switching-on and switching-off control module is provided with a circuit breaker operation count: counting an A-phase circuit breaker, counting a B-phase circuit breaker, counting a C-phase circuit breaker and counting a motor, accumulating the action times of a split-phase circuit breaker and the motor, having a function of counting power failure and saving, and changing a current value by combining fixed value setting with a local command; the closing control module monitors a closing input signal and gives an alarm when the closing signal exists for a long time.
5. The secondary circuit module based on circuit breaker mechanism as claimed in claim 4, wherein the first trip module and the second trip module receive the relay protection system signal through the master control unit to perform the circuit breaker trip protection and reclosing actions; the opening and closing action time of three phases of the circuit breaker is monitored simultaneously, and the inconsistent action protection of the three phases of the circuit breaker is realized; the first tripping module and the second tripping module are backups of each other, the circuit breaker is controlled by the first tripping module under the default condition, and the control right is switched to the second module by the master control unit when the first tripping module breaks down.
6. The secondary circuit module based on circuit breaker mechanism as claimed in claim 5, wherein the status monitoring module monitors various statuses of the circuit breaker mechanism, including monitoring acceleration and travel of a travel sensor preset in the primary device, determining status of the mechanism, and sending out an alarm signal when the status exceeds a preset range.
7. The secondary circuit module based on the circuit breaker mechanism as claimed in claim 6, wherein the motor control module controls the working state of the mechanism energy storage motor, and has the functions of locked-rotor current limiting and thermal relay protection in the operation process; the system has a real-time mechanism position acquisition function and performs mechanism on-site logic judgment; the motor state monitoring function is achieved, the running state of the motor is judged by monitoring the current and the temperature of the motor, and early warning is carried out on motor faults.
8. The secondary circuit module based on the circuit breaker mechanism according to claim 7, wherein the temperature and humidity control module collects signals of temperature and humidity in the mechanism box through a sensor, and sets the temperature and humidity control range by using numbers according to the temperature control and dehumidification requirements of the electrical equipment.
9. The secondary circuit module based on the circuit breaker mechanism as claimed in claim 8, characterized in that the intelligent management module is provided with a memory, records the action time and state of the circuit breaker each time, records the signals of alarm and fault, etc. sent by other modules, and is provided with a USB interface to support data reading; the intelligent management module is provided with a display screen and is used for displaying information such as the state of the circuit breaker and whether the secondary circuit is electrified on line; the intelligent management module is provided with a communication unit, performs information transmission with a background, and is also provided with a debugging interface to support the function test of the field module.
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Application publication date: 20210212 |