CN112531626A - Intelligent on-line monitoring system for breaker breaking protection - Google Patents
Intelligent on-line monitoring system for breaker breaking protection Download PDFInfo
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- CN112531626A CN112531626A CN202011349422.1A CN202011349422A CN112531626A CN 112531626 A CN112531626 A CN 112531626A CN 202011349422 A CN202011349422 A CN 202011349422A CN 112531626 A CN112531626 A CN 112531626A
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- Prior art keywords
- circuit
- switching
- arc
- control mechanism
- intelligent
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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
Abstract
The invention discloses an intelligent online monitoring system for breaker breaking protection, and belongs to the field of power systems. The system comprises: the intelligent monitoring device comprises a circuit breaking closed controller and an electric arc prejudging mechanism. The invention discloses an intelligent on-line monitoring system for breaker breaking protection, which controls the opening and closing of a circuit through a breaking and closing controller, and sends a starting signal to an arc pre-judging mechanism in real time after the circuit is completed, so as to avoid the damage to the circuit when the electric arc is generated through the pre-judgment of the arc pre-judging mechanism, and further, when the pre-judgment that the electric power characteristic exceeds a preset condition, an arc extinguishing mechanism is started in time, and the arc is extinguished in time; 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 breaking protection.
Background
In a contact electric appliance, the process of making and breaking the current by the contact is often accompanied by the generation and extinction of an electric arc. The arc is a gas discharge phenomenon and has certain harm to electrical appliances. When a circuit with voltage over 10V and current over 0.5A is opened or closed in the atmosphere, a mass of gas with extremely high temperature, extremely strong brightness and conductivity, called an arc, is generated in the contact gap (or arc gap).
Due to the high temperature and strong light of the electric arc, which are mainly generated when the contacts break the circuit, the high temperature will burn the contacts and the insulation, and even cause the short circuit between phases and the explosion of electric appliances under severe conditions, thereby causing fire and endangering the safety of personnel and equipment.
In the related art, when an arc damages a circuit device, circuit breaking or manual handling is performed by an emergency device, but the damage caused by the arc still has a great influence when the damage cannot be handled in time.
Disclosure of Invention
The embodiment of the application provides a circuit breaker breaking protection intelligence on-line monitoring system, causes the great problem of harm when can solving electric arc and produces, in time produces the electric arc and foresees to in time start arc extinguishing system handles, reduces the circuit harm. The technical scheme is as follows:
the invention provides an intelligent online monitoring system for breaker breaking 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 an operation and control mechanism, and the intelligent monitoring device comprises a circuit breaking and closing controller and an electric arc prejudging mechanism;
the circuit breaking and closing controller is used for controlling the circuit breaking operation and the circuit closing operation of the circuit where the contact is located, and sending a starting signal to the arc prejudging mechanism after the circuit breaking operation or the circuit closing operation is completed, and the arc prejudging mechanism carries out prejudging operation according to the starting signal;
the arc pre-judging mechanism is connected with the contact, the pre-judging operation is that the arc pre-judging mechanism detects whether the electrical property of a circuit where the contact is located exceeds a preset condition, and the preset condition is set according to the time when the contact generates the arc;
the arc pre-judging mechanism is further used for starting the arc extinguishing mechanism when detecting that the electrical characteristics of the circuit where the contact is located exceed 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 the control mechanism is used for manual control in an emergency.
Optionally, the system further includes a switching-on/off control mechanism, the switching-on/off control mechanism is connected to the switching-off interface and the switching-on interface of the circuit breaker device, and the switching-on/off control mechanism is used for switching off when the circuit where the contact is located is turned off, and is closed after the transient fault is over.
Optionally, the switching-on/off control mechanism is further configured to count the number of trips at the switching-off interface and the number of switching-on times at the switching-on interface, and perform judgment and control on switching-on/off of the switch according to the number of trips.
Optionally, the system further comprises an auxiliary trip device, the auxiliary trip device is connected with the control mechanism through the wired and/or wireless communication mode, and the auxiliary trip device is used for processing when fault tripping occurs.
Optionally, the auxiliary trip device is further configured to count the number of fault trips and send the count to the switching-on/off control mechanism;
and the opening and closing control mechanism is also used for judging fault types according to the fault tripping times, wherein the fault types comprise temporary type faults and permanent type faults.
Optionally, the system further includes an electrical signal processing device, the electrical signal processing device is connected to the intelligent monitoring device in the wired and/or wireless communication manner, and is configured to perform preprocessing on the electrical signal acquired by the intelligent monitoring device, where the preprocessing includes filtering and digital-to-analog conversion.
Optionally, the control mechanism includes a manual operation module and an emergency alarm module;
the emergency alarm module is used for giving an alarm in an emergency, and in an alarm state, the manual operation module is used for providing a manual operation platform for manually controlling each component of the intelligent on-line monitoring system for breaker breaking protection.
Optionally, the system further includes a wireless communication device, and the wireless communication mode is implemented by the wireless communication device.
The invention can bring the following beneficial effects:
the invention discloses an intelligent on-line monitoring system for breaker breaking protection, which controls the opening and closing of a circuit through a breaking and closing controller, and sends a starting signal to an arc pre-judging mechanism in real time after the circuit is completed, so as to avoid the damage to the circuit when the electric arc is generated through the pre-judgment of the arc pre-judging mechanism, and further, when the pre-judgment that the electric power characteristic exceeds a preset condition, an arc extinguishing mechanism is started in time, and the arc is extinguished in time; and all the components are connected in a wired and/or wireless communication mode, and manual operation can be performed under emergency conditions, so that a certain protection decision is provided for a user.
Drawings
Fig. 1 is a block diagram illustrating a breaker break protection intelligent online monitoring system according to an exemplary embodiment of the present application;
fig. 2 shows a block diagram of a breaker break protection intelligent online monitoring system according to another exemplary embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Example 1
Referring to fig. 1, a block diagram of a breaker break protection intelligent online monitoring system according to an exemplary embodiment of the present application is shown.
In this application embodiment, circuit breaker breaking protection intelligence on-line monitoring system includes: 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 an operation and control mechanism, and the intelligent monitoring device comprises a circuit breaking and closing controller and an electric arc prejudging mechanism.
The circuit breaking and closing controller is used for controlling the circuit breaking operation and the circuit closing operation of the circuit where the contact is located, and sending a starting signal to the arc prejudging mechanism after the circuit breaking operation or the circuit closing operation is completed, and the arc prejudging mechanism carries out prejudging operation according to the starting signal.
The reason for sending the start signal is based on the condition of generating an arc, which is often generated when the circuit is broken.
The arc pre-judging mechanism is connected with the contact, the pre-judging operation is that the arc pre-judging mechanism detects whether the electrical property of a circuit where the contact is located exceeds a preset condition, and the preset condition is set according to the time when the contact generates the arc.
If the time of generating the arc is a circuit with a voltage exceeding 10V and a current exceeding 0.5A, the preset conditions may be set to be that the voltage does not exceed 8V and the current does not exceed 0.4A in the current power characteristics in order to predict the generation of the arc in advance. Therefore, the spare time gives the arc extinguishing mechanism to carry out the operation of starting in advance, thereby carrying out the arc extinguishing treatment on the possibly generated arc in time.
The arc prejudging mechanism is also used for starting an 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 close controller and the electric arc pre-judging mechanism in a wired and/or wireless communication mode and is used for manual control in emergency.
To sum up, the intelligent online monitoring system for breaker breaking protection disclosed in the embodiment of the present application controls the opening and closing of a circuit through a breaking and closing controller, and sends a start signal to an arc pre-judging mechanism in real time after the completion of the opening and closing, so as to avoid damage to the circuit when an arc is generated through the pre-judgment of the arc pre-judging mechanism, and further, when the pre-judgment that the electric power characteristic exceeds a preset condition, timely starts an arc extinguishing mechanism to perform arc extinguishing treatment on the arc; and all the components are connected in a wired and/or wireless communication mode, and manual operation can be performed under emergency conditions, so that a certain protection decision is provided for a user.
Example 2
Referring to fig. 2, a block diagram of a breaker break protection intelligent online monitoring system according to another exemplary embodiment of the present application is shown.
The system also comprises a switching-on and switching-off control mechanism, wherein the switching-on and switching-off control mechanism is connected to a switching-off interface and a switching-on interface of the circuit breaker device, and is used for switching off when a circuit where the contact is located is switched off and closing after the transient fault is ended.
Optionally, the switching-on/off control mechanism is further configured to count the trip times at the switching-off interface and the switch-on/off times at the switching-on interface, and perform intelligent judgment and switch-on/off control according to the trip times.
Optionally, the system further comprises an auxiliary trip device, the auxiliary trip device is connected with the control mechanism in a wired and/or wireless communication mode, and the auxiliary trip device is used for processing when fault tripping occurs.
Optionally, the auxiliary trip device is further configured to count the number of fault trips and send the count to the switching-on/off control mechanism; and the opening and closing control mechanism is also used for judging the fault type according to the fault tripping times, wherein the fault type comprises a temporary type fault and a permanent type fault.
Optionally, the system further includes an electrical signal processing device, the electrical signal processing device is connected to the intelligent monitoring device in a wired and/or wireless communication manner, and is configured to perform preprocessing on the electrical signal collected by the intelligent monitoring device, where the preprocessing includes filtering and digital-to-analog conversion. The electrical signal processing device may be embedded in the intelligent monitoring device, and may perform preprocessing on signals interacting with the circuit breaker device (not shown in fig. 2).
Optionally, the control mechanism includes a manual operation module and an emergency alarm module.
The emergency alarm module is used for giving an alarm under an emergency condition, and the manual operation module is used for providing a manual operation platform to carry out manual control on each component of the intelligent on-line monitoring system for breaker breaking protection in an alarm state.
Optionally, the system further includes a wireless communication device (not shown in fig. 2), and the wireless communication mode is implemented by the wireless communication device.
To sum up, the breaker breaking protection intelligent online monitoring system disclosed in the embodiment of the present application further monitors the times of opening and closing and the times of fault tripping through a switch-on/off control mechanism on the basis of the above embodiment, performs data statistics for further analyzing the switch tripping reason, and timely judges the fault judgment reason, thereby providing convenient data analysis conditions for users.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (8)
1. The utility model provides a circuit breaker breaking protection intelligence on-line monitoring system which characterized in that, this system includes: 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 an operation and control mechanism, and the intelligent monitoring device comprises a circuit breaking and closing controller and an arc prejudging mechanism;
the circuit breaking and closing controller is used for controlling the circuit breaking operation and the circuit closing operation of the circuit where the contact is located, and sending a starting signal to the arc prejudging mechanism after the circuit breaking operation or the circuit closing operation is completed, and the arc prejudging mechanism carries out prejudging operation according to the starting signal;
the arc pre-judging mechanism is connected with the contact, the pre-judging operation is that the arc pre-judging mechanism detects whether the electrical property of a circuit where the contact is located exceeds a preset condition, and the preset condition is set according to the time when the contact generates the arc;
the arc pre-judging mechanism is further used for starting the arc extinguishing mechanism when detecting that the electrical characteristics of the circuit where the contact is located exceed 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 the control mechanism is used for manual control in an emergency.
2. The system of claim 1, further comprising a switching-off and switching-on control mechanism, wherein the switching-off and switching-on control mechanism is connected to a switching-off interface and a switching-on interface of the circuit breaker device, and the switching-off and switching-on control mechanism is used for switching off when a circuit where the contact is located is switched off and closing when a transient fault is over.
3. The system of claim 2, wherein the switching-on/off control mechanism is further configured to count tripping times at the switching-off interface and switching-on times at the switching-on interface, and perform judgment and control on switching-on/off of the switch according to the tripping and switching-on times.
4. The system of claim 2, further comprising an auxiliary trip device, wherein the auxiliary trip device is connected to the operating mechanism via the wired, and/or wireless communication means, wherein the auxiliary trip device is used for processing when a fault trip occurs.
5. The system as claimed in claim 4, wherein the auxiliary trip device is further configured to count the number of fault trips and send the counted number to the switching-on/off control mechanism;
and the opening and closing control mechanism is also used for judging fault types according to the fault tripping times, wherein the fault types comprise temporary type faults and permanent type faults.
6. The system according to claim 1, further comprising an electrical signal processing device connected to the smart monitoring device by the wired and/or wireless communication manner and configured to perform pre-processing on the electrical signal collected by the smart monitoring device, wherein the pre-processing includes filtering and digital-to-analog conversion.
7. The system of claim 1, wherein the steering mechanism comprises a manual operation module and an emergency alert module;
the emergency alarm module is used for giving an alarm in an emergency, and in an alarm state, the manual operation module is used for providing a manual operation platform for manually controlling each component of the intelligent on-line monitoring system for breaker breaking protection.
8. The system according to any one of claims 1 to 7, characterized in that the system further comprises wireless communication means, said wireless communication means being implemented by said wireless communication means.
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 |
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| CN112531626A true CN112531626A (en) | 2021-03-19 |
| CN112531626B 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 |
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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 |
|---|---|
| CN112531626B (en) | 2023-08-18 |
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