CN112531626B - Intelligent on-line monitoring system for breaker interruption protection - Google Patents
Intelligent on-line monitoring system for breaker interruption protection Download PDFInfo
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- CN112531626B CN112531626B CN202011349422.1A CN202011349422A CN112531626B CN 112531626 B CN112531626 B CN 112531626B CN 202011349422 A CN202011349422 A CN 202011349422A CN 112531626 B CN112531626 B CN 112531626B
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- arc
- circuit
- closing
- intelligent
- switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
- H02H1/0015—Using arc detectors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0092—Details of emergency protective circuit arrangements concerning the data processing means, e.g. expert systems, neural networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Evolutionary Computation (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Abstract
The application discloses an intelligent on-line monitoring system for breaker interruption protection, and belongs to the field of power systems. The system comprises: the intelligent monitoring device comprises a circuit breaker closing controller and an electric arc prejudging mechanism. The intelligent on-line monitoring system for breaker interruption protection disclosed by the application controls the circuit to be opened and closed through the opening and closing controller, and sends a starting signal to an arc pre-judging mechanism in real time after the circuit is completed, so that the damage to the circuit caused by the generation of an arc is avoided through the pre-judgment of the arc pre-judging mechanism, and further, when the electric power characteristic exceeds the preset condition through the pre-judgment, an arc extinguishing mechanism is started in time, and the arc is subjected to the timely arc extinguishing treatment; and each component is connected in a wireless communication mode, and manual operation can be performed under emergency conditions, so that a certain protection decision is provided for a user.
Description
Technical Field
The embodiment of the application relates to the field of power systems, in particular to an intelligent on-line monitoring system for breaker interruption protection.
Background
In electrical apparatuses with contacts, the process of switching on and off the current by the contacts is often accompanied by the generation and extinction of an arc. Arcing is a gas discharge phenomenon that presents a hazard to electrical appliances. When a circuit with a voltage exceeding 10V and a current exceeding 0.5A is opened or closed in the atmosphere, a mass of extremely high temperature, extremely high brightness and conductive gas, called an arc, is generated in the contact gap (or arc gap).
Because of the high temperature and strong light of the arc and mainly generated when the contact breaks the circuit, the high temperature will burn out the contact and insulate, and even cause interphase short circuit and electrical appliance explosion in severe cases, thereby causing fire disaster and endangering the safety of personnel and equipment.
In the related art, when an arc damages a circuit device, a circuit is cut off or manually handled by an emergency device, but the damage caused by the arc still has a great influence when the arc cannot be handled in time.
Disclosure of Invention
The embodiment of the application provides an intelligent on-line monitoring system for breaker interruption protection, which can solve the problem of large damage caused by arc generation, pre-judge the arc generation in time, and start an arc extinguishing system in time to process, thereby reducing circuit damage. The technical scheme is as follows:
the application provides an intelligent on-line monitoring system for breaker interruption protection, which comprises: the intelligent monitoring device comprises a circuit breaker device, an intelligent monitoring device and a shell, wherein the circuit breaker device comprises a contact, an arc extinguishing mechanism and a control mechanism, and the intelligent monitoring device comprises a circuit breaker closing controller and an arc prejudging mechanism;
the circuit breaking and closing controller is used for controlling the circuit breaking operation and closing operation of the circuit where the contact is located, sending a starting signal to the electric arc pre-judging mechanism after the circuit breaking operation or the closing operation is completed, and performing pre-judging operation by the electric arc pre-judging mechanism according to the starting signal;
the electric arc prejudging mechanism is connected with the contact, and the prejudging operation is that the electric arc prejudging mechanism detects whether the electric power characteristic of a circuit where the contact is positioned exceeds a preset condition, and the preset condition is set according to the moment when the contact generates an electric arc;
the arc prejudging mechanism is also used for starting the arc extinguishing mechanism when the electric power characteristic of the circuit where the contact is located exceeds the preset condition;
the control mechanism is connected with the open-circuit closing controller and the electric arc pre-judging mechanism in a wired and/or wireless communication mode, and is used for manual control in emergency.
Optionally, the system further comprises an opening and closing control mechanism, wherein the opening and closing control mechanism is connected to an opening interface and a closing interface of the circuit breaker device, and is used for switching off the time division gate when the circuit where the contact is located is closed and closing the time division gate when the transient fault is over.
Optionally, the opening and closing control mechanism is further used for counting the tripping times at the opening interface and the closing times at the closing interface, and judging and controlling the opening and closing of the switch according to the tripping times.
Optionally, the system further comprises an auxiliary tripping device, wherein the auxiliary tripping device is connected with the control mechanism through the wired and/or wireless communication mode, and the auxiliary tripping device is used for processing when fault tripping occurs.
Optionally, the auxiliary tripping device is further used for counting the fault tripping times and sending the fault tripping times to the switching-on/off control mechanism;
the switching-on/off control mechanism is also used for judging the fault type according to the fault tripping times, wherein the fault type comprises temporary type faults and permanent type faults.
Optionally, the system further includes an electrical signal processing device, where the electrical signal processing device is connected to the intelligent monitoring device through the wired and/or wireless communication mode, and is used for preprocessing an electrical signal collected by the intelligent monitoring device, where the preprocessing includes filtering and digital-to-analog conversion.
Optionally, the control mechanism comprises a manual operation module and an emergency alarm module;
the emergency alarm module is used for giving an alarm under the emergency condition, and the manual operation module is used for providing a manual operation platform to manually control each component of the intelligent on-line monitoring system for breaker interruption protection under the alarm condition.
Optionally, the system further comprises a wireless communication device, and the wireless communication mode is realized through the wireless communication device.
The application has the beneficial effects that:
the intelligent on-line monitoring system for breaker interruption protection disclosed by the application controls the circuit to be opened and closed through the opening and closing controller, and sends a starting signal to an arc pre-judging mechanism in real time after the circuit is completed, so that the damage to the circuit caused by the generation of an arc is avoided through the pre-judgment of the arc pre-judging mechanism, and further, when the electric power characteristic exceeds the preset condition through the pre-judgment, an arc extinguishing mechanism is started in time, and the arc is subjected to the timely arc extinguishing treatment; and each component is connected in a wired and/or wireless communication mode, and can be manually operated in an emergency, so that a certain protection decision is provided for a user.
Drawings
FIG. 1 illustrates a block diagram of a circuit breaker interrupt protection intelligent on-line monitoring system, according to an exemplary embodiment of the present application;
fig. 2 illustrates a block diagram of a circuit breaker interrupt protection intelligent on-line monitoring system according to another exemplary embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
References herein to "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
Example 1
Referring to fig. 1, a block diagram of an intelligent on-line monitoring system for breaker interrupt protection according to an exemplary embodiment of the present application is shown.
In an embodiment of the application, an intelligent on-line monitoring system for breaker interruption protection comprises: the intelligent monitoring device comprises a circuit breaker device, an intelligent monitoring device and a shell, wherein the circuit breaker device comprises a contact, an arc extinguishing mechanism and a control mechanism, and the intelligent monitoring device comprises a circuit breaker closing controller and an arc prejudging mechanism.
The circuit breaking and closing controller is used for controlling the circuit breaking operation and closing operation of the circuit where the contact is located, sending a starting signal to the electric arc pre-judging mechanism after the circuit breaking operation or the closing operation is completed, and the electric arc pre-judging mechanism performs pre-judging operation according to the starting signal.
The reason for transmitting the start signal is based on the generation condition of an arc, which is often generated when the circuit is broken.
The electric arc prejudging mechanism is connected with the contact, and the prejudging operation is that the electric arc prejudging mechanism detects whether the electric power characteristic of a circuit where the contact is positioned exceeds a preset condition, and the preset condition is set according to the moment when the contact generates an electric arc.
If the time of generating the arc is more than 10V and the current is more than 0.5A, the preset condition can be set to be that the voltage is not more than 8V and the current is not more than 0.4A in the current power characteristic in order to pre-judge the generation of the arc in advance. Therefore, the spare time gives the arc extinguishing mechanism an early starting operation, so that arc extinguishing treatment can be performed on an arc possibly generated in time.
The arc prejudging mechanism is also used for starting the arc extinguishing mechanism when the electric power characteristic of the circuit where the contact is located exceeds a preset condition.
The control mechanism is connected with the open-circuit closing controller and the electric arc pre-judging mechanism in a wired and/or wireless communication mode, and is used for manual control in emergency.
In summary, in the intelligent on-line monitoring system for breaker interruption protection disclosed in the embodiment of the application, the breaking and closing of a circuit are controlled by a breaking and closing controller, and a starting signal is sent to an arc pre-judging mechanism in real time after the breaking and closing is finished, so that damage to the circuit caused when an arc is generated is avoided through pre-judging of the arc pre-judging mechanism, and further, when the electric power characteristic exceeds a preset condition through pre-judging, an arc extinguishing mechanism is started in time, and the arc is extinguished in time; and each component is connected in a wired and/or wireless communication mode, and can be manually operated in an emergency, so that a certain protection decision is provided for a user.
Example 2
Referring to fig. 2, a block diagram of an intelligent on-line monitoring system for breaker interrupt protection according to another exemplary embodiment of the present application is shown.
The system further comprises a switching-off and switching-on control mechanism, wherein the switching-off and switching-on control mechanism is connected with a switching-off interface and a switching-on interface of the circuit breaker device, is used for switching off a switching-off of a circuit where the contact is located, and is closed after the transient fault is ended.
Optionally, the opening and closing control mechanism is further used for counting the tripping times at the opening and closing interface and the tripping times at the closing and closing interface, and intelligently judging and controlling the opening and closing of the switch according to the tripping times.
Optionally, the system further comprises an auxiliary tripping device connected to the control mechanism by a wire and/or by wireless communication, the auxiliary tripping device being used for handling when a fault trip occurs.
Optionally, the auxiliary tripping device is further used for counting the tripping times of faults and sending the tripping times to the switching-on/off control mechanism; the switching-on and switching-off control mechanism is also used for judging the fault type according to the fault tripping times, wherein the fault type comprises temporary type faults and permanent type faults.
Optionally, the system further comprises an electrical signal processing device, wherein the electrical signal processing device is connected to the intelligent monitoring device in a wired and/or wireless communication mode and is used for preprocessing the electrical signal acquired by the intelligent monitoring device, and the preprocessing comprises filtering and digital-to-analog conversion. The electrical signal processing device may be embedded in the intelligent monitoring device, and pre-processes signals (not shown in fig. 2) that interact with the circuit breaker device.
Optionally, the manipulation mechanism includes a manual operation module and an emergency alert module.
The emergency alarm module is used for giving an alarm under emergency, and the manual operation module is used for providing a manual operation platform to manually control each component of the intelligent on-line monitoring system for breaker interruption protection under the alarm state.
Optionally, the system further comprises wireless communication means (not shown in fig. 2) by which the wireless communication means are implemented.
In summary, the intelligent on-line monitoring system for breaker interruption protection disclosed in the embodiment of the application monitors the times of opening and closing and the times of fault tripping through the opening and closing control mechanism on the basis of the embodiment, makes data statistics for further analyzing the tripping reason of the switch, timely judges the fault judgment reason, and provides a convenient data analysis condition for users.
The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.
Claims (4)
1. An intelligent on-line monitoring system for breaker interruption protection, which is characterized by comprising: the intelligent monitoring device comprises a circuit breaker device and an intelligent monitoring device, wherein the circuit breaker device comprises a contact, an arc extinguishing mechanism and a control mechanism, and the intelligent monitoring device comprises a circuit breaker closing controller and an arc prejudging mechanism;
the circuit breaking and closing controller is used for controlling the circuit breaking operation and closing operation of the circuit where the contact is located, sending a starting signal to the electric arc pre-judging mechanism after the circuit breaking operation or the closing operation is completed, and performing pre-judging operation by the electric arc pre-judging mechanism according to the starting signal;
the electric arc prejudging mechanism is connected with the contact, and the prejudging operation is that the electric arc prejudging mechanism detects whether the electric power characteristic of a circuit where the contact is positioned exceeds a preset condition, and the preset condition is set according to the moment when the contact generates an electric arc;
the arc prejudging mechanism is also used for starting the arc extinguishing mechanism when the electric power characteristic of the circuit where the contact is located exceeds the preset condition;
the control mechanism is connected with the circuit breaking closing controller and the electric arc prejudging mechanism in a wired and/or wireless communication mode, and is used for manual control in emergency;
the system further comprises an opening and closing control mechanism, wherein the opening and closing control mechanism is connected with an opening interface and a closing interface of the circuit breaker device, and is used for switching off an opening when a circuit where the contact is positioned is switched off and closing when the transient fault is ended;
the system also comprises an auxiliary tripping device, wherein the auxiliary tripping device is connected with the control mechanism in a wired and/or wireless communication mode and is used for processing when fault tripping occurs;
the switching-on/off control mechanism is also used for counting the tripping times at the switching-off interface and the switching-on times at the switching-on interface, judging according to the tripping and switching-on times and controlling the switching-on/off of the switch;
the auxiliary tripping device is also used for counting the fault tripping times and sending the fault tripping times to the opening and closing control mechanism;
the switching-on/off control mechanism is also used for judging the fault type according to the fault tripping times, wherein the fault type comprises temporary type faults and permanent type faults.
2. The system of claim 1, further comprising an electrical signal processing device connected to the intelligent monitoring device by the wired and/or wireless communication means and configured to pre-process the electrical signal collected by the intelligent monitoring device, the pre-process including filtering and digital-to-analog conversion.
3. The system of claim 1, wherein the steering mechanism comprises a human operational module and an emergency alert module;
the emergency alarm module is used for giving an alarm under the emergency condition, and the manual operation module is used for providing a manual operation platform to manually control each component of the intelligent on-line monitoring system for breaker interruption protection under the alarm condition.
4. A system according to any one of claims 1 to 3, wherein the system further comprises wireless communication means by which the wireless communication means is implemented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349422.1A CN112531626B (en) | 2020-11-26 | 2020-11-26 | Intelligent on-line monitoring system for breaker interruption protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011349422.1A CN112531626B (en) | 2020-11-26 | 2020-11-26 | Intelligent on-line monitoring system for breaker interruption protection |
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| Publication Number | Publication Date |
|---|---|
| CN112531626A CN112531626A (en) | 2021-03-19 |
| CN112531626B true CN112531626B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011349422.1A Active CN112531626B (en) | 2020-11-26 | 2020-11-26 | Intelligent on-line monitoring system for breaker interruption protection |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051651Y (en) * | 2007-06-18 | 2008-04-23 | 邢刚 | A failure arc protection breaker |
| CN101436492A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Secondary trip system for circuit breaker |
| CN104584170A (en) * | 2012-08-24 | 2015-04-29 | 施耐德电气美国股份有限公司 | Circuit breaker signaling system for control of an arc fault detection system |
-
2020
- 2020-11-26 CN CN202011349422.1A patent/CN112531626B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201051651Y (en) * | 2007-06-18 | 2008-04-23 | 邢刚 | A failure arc protection breaker |
| CN101436492A (en) * | 2007-11-15 | 2009-05-20 | 通用电气公司 | Secondary trip system for circuit breaker |
| CN104584170A (en) * | 2012-08-24 | 2015-04-29 | 施耐德电气美国股份有限公司 | Circuit breaker signaling system for control of an arc fault detection system |
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| Publication number | Publication date |
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| CN112531626A (en) | 2021-03-19 |
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