CN116626483A - Service cycle statistics system of circuit breaker - Google Patents
Service cycle statistics system of circuit breaker Download PDFInfo
- Publication number
- CN116626483A CN116626483A CN202310920323.1A CN202310920323A CN116626483A CN 116626483 A CN116626483 A CN 116626483A CN 202310920323 A CN202310920323 A CN 202310920323A CN 116626483 A CN116626483 A CN 116626483A
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- circuit breaker
- command
- time point
- voltage
- instruction
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- 238000004590 computer program Methods 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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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
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Keying Circuit Devices (AREA)
Abstract
The invention provides a service cycle statistical system of a circuit breaker, which comprises the following components: the voltage command unit, the circuit breaker, the camera, the processor and the memory storing the computer program, when the processor executes the computer program, the following steps are executed: acquiring a first issuing time point when the voltage command unit issues a first command; acquiring a first execution time point of executing a first operation by the circuit breaker according to a first instruction after a first issuing time point; and when the first instruction is matched with the first operation, continuing to execute downwards; when the difference value between the first issuing time point and the first executing time point is larger than a preset time delay threshold value, increasing the time interval for issuing the instruction; thereby prolonging the service life of the detected circuit breaker.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a service cycle statistics system of a circuit breaker.
Background
The circuit breaker is a switching device capable of switching on, carrying and switching off current under normal loop conditions and switching on, carrying and switching off current under abnormal loop conditions within a specified time, the circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the main contact of the low-voltage circuit breaker is manually operated or electrically switched on, and according to national standard requirements, the circuit breaker needs to undergo an aging test, and under the aging test, how to issue instructions within a specified preset time period, so that the service life of the circuit breaker is very important to be prolonged.
Disclosure of Invention
Aiming at the technical problems, the invention adopts the following technical scheme: a life cycle statistics system for a circuit breaker, the system comprising: the circuit breaker comprises a voltage instruction unit, a circuit breaker, a camera, a processor and a memory storing a computer program; the voltage command unit is in communication connection with the circuit breaker and is used for alternately issuing a switching-off command and a switching-on command according to a time interval T; the circuit breaker is used for executing corresponding operation on the total gate air switch according to the command issued by the voltage command unit, executing opening operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a breaking command, and executing closing operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a closing command; the camera is used for shooting the state of a total gate air switch of the circuit breaker.
When the processor executes the computer program, the following steps are performed:
s100, obtaining a first issuing time point P when the voltage command unit issues a first command 1 。
S200, acquiring a first issuing time point P based on a video stream shot by a camera 1 The first execution time point P of the first operation of the rear circuit breaker according to the first instruction 2 The method comprises the steps of carrying out a first treatment on the surface of the And, when the first instruction and the first operation match, S300 is performed.
S300, when the first downlink time point P 1 And a first execution time point P 2 When the difference is larger than V, update t=h (P 2 -P 1 ）/（LP 2 -LP 1 ) Wherein H is a preset step length, LP 1 For the voltage command unit at the first issuing time point P 1 A second issue time point, LP, of the last issue of the second instruction 2 LP for camera shooting 1 And the rear circuit breaker executes a second operation according to a second execution time point of the second instruction, and V is a preset time delay threshold.
The invention has at least the following beneficial effects:
in summary, based on the voltage command unit alternately issuing a switching-off command and a switching-on command according to a time interval T, a first issuing time point at which the voltage command unit issues a first command is obtained, based on a video stream shot by a camera, a first execution time point at which a circuit breaker executes a first operation according to the first command is obtained after the first issuing time point, and when the first command and the first operation are matched, the following steps are executed: when the first downlink time point P 1 And a first execution time point P 2 When the difference is larger than V, update t=h (P 2 -P 1 ）/（LP 2 -LP 1 ) Therefore, the time interval of the voltage command unit for issuing the opening command and the closing command is increased, and the effect of prolonging the service life of the circuit breaker is achieved by increasing the time interval of the voltage command unit for issuing the opening command and the closing command.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a processor of a life cycle statistics system of a circuit breaker according to an embodiment of the present invention executing a computer program.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
The embodiment of the invention provides a service cycle statistics system of a circuit breaker, which comprises a voltage instruction unit, the circuit breaker, a camera, a processor and a memory storing a computer program, wherein the voltage instruction unit is used for controlling the circuit breaker to operate according to the service cycle of the circuit breaker; the voltage command unit is in communication connection with the circuit breaker and is used for alternately issuing a switching-off command and a switching-on command according to a time interval T; the circuit breaker is used for executing corresponding operation on the total gate air switch according to the command issued by the voltage command unit, executing opening operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a breaking command, and executing closing operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a closing command; the camera is used for shooting the state of a total gate air switch of the circuit breaker.
The service cycle of the circuit breaker is aging test of the circuit breaker.
Specifically, when the processor executes the computer program, as shown in fig. 1, the following steps are performed:
s100, obtaining a first issuing time point P when the voltage command unit issues a first command 1 。
S200, acquiring a first issuing time point P based on a video stream shot by a camera 1 The first execution time point P of the first operation of the rear circuit breaker according to the first instruction 2 The method comprises the steps of carrying out a first treatment on the surface of the And, if the first instruction and the first operation match, S300 is executed.
Specifically, based on the video stream shot by the camera, any method in the prior art can judge whether the total gate air switch of the circuit breaker is opened or closed based on the video frame, and the detailed description is omitted here.
S300, when the first downlink time point P 1 And a first execution time point P 2 When the difference is larger than V, update t=h (P 2 -P 1 ）/（LP 2 -LP 1 ) Wherein H is a preset step length, LP 1 For the voltage command unit at the first issuing time point P 1 A second issue time point, LP, of the last issue of the second instruction 2 LP for camera shooting 1 And the rear circuit breaker executes a second operation according to a second execution time point of the second instruction, and V is a preset time delay threshold.
Specifically, after S300, S400 is further included:
if the current time point is distant from the first downlink time point P 1 And (3) if the time interval of the voltage command unit meets T, the voltage command unit issues a command to the circuit breaker.
Specifically, the preset step length H may be determined according to the actual situation. For example 60s.
Specifically, when the first issuing time point P 1 And a first execution time point P 2 The difference between the switch-off command and the switch-on command is greater than V, and the circuit breaker is considered to be aged, and at this time, in order to prolong the service life of the circuit breaker, the interval between the switch-off command and the switch-on command is increased by updating the time interval T, so that the service life of the circuit breaker is prolonged.
In summary, based on the voltage command unit alternately issuing a switching-off command and a switching-on command according to a time interval T, a first issuing time point at which the voltage command unit issues a first command is obtained, based on a video stream shot by a camera, a first execution time point at which a circuit breaker executes a first operation according to the first command is obtained after the first issuing time point, and when the first command and the first operation are matched, the following steps are executed: when the first downlink time point P 1 And a first execution time point P 2 When the difference is larger than V, update t=h (P 2 -P 1 ）/（LP 2 -LP 1 ) Thereby the time interval of the voltage command unit for issuing the opening command and the closing command is increased, and the time interval of the voltage command unit for issuing the opening command and the closing command is increased, so that the circuit breaker is prolongedService life effect.
Specifically, the system further comprises: the display unit is in communication connection with the camera, and a part of the screen of the display unit is used for displaying video streams shot by the camera.
Further, the system further comprises: the voltage acquisition unit is in communication connection with the circuit breaker and is used for acquiring and outputting a voltage value of the circuit breaker under opening or closing.
In one embodiment of the invention, the positive electrode and the negative electrode of a voltage acquisition line of the voltage acquisition unit are correspondingly connected with the positive electrode and the negative electrode of the lower opening of the circuit breaker, when the circuit breaker is closed, the voltage acquisition unit can output a variable signal to a processor in a low level after detecting the voltage output of the circuit breaker, and the processor can record one closing. When the voltage is 0V after the opening, the voltage acquisition module unit outputs a variable signal to the processor as a high level, the processor records the opening once and sends the statistics of opening and closing to the display unit, and the statistics are displayed on the screen of the display unit.
Specifically, when the circuit breaker is closed, the voltage acquisition unit outputs a low level; when the breaker is opened, the voltage acquisition unit outputs a high level.
Further, when the low level is obtained, one closing is recorded, so that the total closing times of the circuit breaker are obtained; when the high level is obtained, recording one-time opening, so as to obtain the total opening times of the circuit breaker; and displaying the total switching-on times and the total switching-off times on a display unit.
In another embodiment of the present invention, the voltage acquisition unit outputs a "high level" when the circuit breaker is closed; when the breaker is opened, the voltage acquisition unit outputs a low level.
In another embodiment of the present invention, if the first operation and the first instruction do not match, the first instruction matches the output of the voltage acquisition unit, and the second operation matches the second instruction, then P 2 -P 1 =LP 2 -LP 1 。
For example, when the voltage command unit issues a closing command, the voltage acquisition unit outputs a "low level", but the camera records an opening command, it may be understood that the voltage command unit has issued a closing command, the circuit breaker has actually been closed, but the total gate air switch of the circuit breaker is not closed or is in a half-closing state for some reason, the video stream acquired based on the camera displays that the closing is not closed, at this time, the first execution time point corresponding to the acquired closing must be delayed, and the first execution time point which should be actually acquired has an error, so as to avoid a huge error caused, and the result of the last preset time period is used in the current preset time period.
Further, if the first operation and the first instruction are not matched, the first instruction is matched with the output of the voltage acquisition unit, and the second operation is matched with the second instruction, V is kept unchanged. For example, when the voltage command unit issues a closing command, the voltage acquisition unit outputs a low level, but when the camera records opening, the preset time delay threshold is kept unchanged.
Further, if the first operation matches the first instruction, the first issue time point P 1 And a first execution time point P 2 When the difference is greater than V, then v=v (P 2 -P 1 ）/（LP 2 -LP 1 ) The method comprises the steps of carrying out a first treatment on the surface of the It can be understood that when the first downstream time point P 1 And a first execution time point P 2 When the difference value of the voltage command unit is larger than V, the time difference between the time point corresponding to the command and the time point corresponding to the operation is considered to be larger than V, so that when the circuit breaker is considered to be aged, the time interval T is updated, and the preset time delay threshold V is updated at the same time, so that a more reasonable preset time delay threshold is provided.
In an embodiment of the present invention, if the first operation and the first command are not matched, the first command is matched with the output of the voltage acquisition unit, and the following steps are performed:
s001, a first preset time delay threshold list H= { H is obtained 1 ，H 2 ，…，H r ，…，H m }，H r Is the r-th preset time delay threshold value in the preset history time period, and the value range of r is1 to m, m being the number of preset delay thresholds used during the historical time period;
s002, obtain H max ={H 1 ，H 2 ，…，H r ，…，H m }；
S003，V=H max 。
In summary, when the first operation is not matched with the first instruction, the output of the first instruction is matched with the output of the voltage acquisition unit, and the maximum value in the preset time delay threshold list is taken as the preset time delay threshold V by acquiring the preset time delay threshold list, so that errors caused by abnormal conditions of the total gate air switch are avoided, and the resistance to the abnormal conditions is improved.
Further, the system further comprises: and the alarm unit is used for sending an alarm prompt if the first instruction is not matched with the output of the voltage acquisition unit. The alarm unit consists of a buzzer and a switch circuit, and when the preset alarm condition is met, the processor gives a high level to the switch circuit, so that the buzzer is triggered to alarm.
Specifically, when the voltage command unit issues a closing command and the voltage acquisition unit outputs a low level, the camera records that the closing is not performed within a period exceeding a preset error time, and the processor gives a high level to the switch circuit, so that the buzzer is triggered to give an alarm.
Specifically, when the voltage command unit issues a closing command and the voltage acquisition unit outputs a low level, and the camera records that the closing is not performed within a period exceeding a preset error, it can be understood that the total gate air switch of the detected circuit breaker may be damaged and the opening/closing cannot be performed any more, so that an alarm is given to prompt maintenance.
Further, when the voltage command unit issues a closing command, the voltage acquisition unit outputs a high level, and the processor gives a high level to the switch circuit, so that the buzzer is triggered to alarm.
In summary, the invention uses the alarm function, when the problem occurs, the alarm is given in time, and the invention can acquire the switching-on times and the switching-off times and display the switching-on times on the display unit, thereby discarding the problem that the original manual recording of the switching-on times is time-consuming and labor-consuming and the detected breaker failure cannot be found in time. The alarm unit only needs to wait for the alarm to sound and then check the fault of the detected breaker, thereby saving time and labor and saving labor time.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. Those skilled in the art will also appreciate that many modifications may be made to the embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (10)
1. A system for counting the life cycle of a circuit breaker, said system comprising: the circuit breaker comprises a voltage instruction unit, a circuit breaker, a camera, a processor and a memory storing a computer program; the voltage command unit is in communication connection with the circuit breaker and is used for alternately issuing a switching-off command and a switching-on command according to a time interval T; the circuit breaker is used for executing corresponding operation on the total gate air switch according to the command issued by the voltage command unit, executing opening operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a breaking command, and executing closing operation on the total gate air switch by the circuit breaker when the command issued by the voltage command unit is a closing command; the camera is used for shooting the state of a total gate air switch of the circuit breaker;
when the processor executes the computer program, the following steps are performed:
s100, obtaining a first issuing time point P when the voltage command unit issues a first command 1 ；
S200, acquiring a first issuing time point P based on a video stream shot by a camera 1 The first execution time point P of the first operation of the rear circuit breaker according to the first instruction 2 The method comprises the steps of carrying out a first treatment on the surface of the And, when the first instruction and the first operation are matched, S300 is performed;
s300, when the first downlink time point P 1 And a first execution time point P 2 When the difference of (2) is greater than V, thenNew t=h (P 2 -P 1 ）/（LP 2 -LP 1 ) Wherein H is a preset step length, LP 1 For the voltage command unit at the first issuing time point P 1 A second issue time point, LP, of the last issue of the second instruction 2 LP for camera shooting 1 And the rear circuit breaker executes a second operation according to a second execution time point of the second instruction, and V is a preset time delay threshold.
2. The life cycle statistics system of the circuit breaker according to claim 1, wherein S300 further comprises S400:
if the current time point is distant from the first downlink time point P 1 And (3) if the time interval of the voltage command unit meets T, the voltage command unit issues a command to the circuit breaker.
3. The usage period statistics system for a circuit breaker according to claim 1, further comprising: the voltage acquisition unit is in communication connection with the circuit breaker and is used for acquiring and outputting a voltage value of the circuit breaker under opening or closing.
4. The life cycle statistics system of the circuit breaker according to claim 3, wherein the voltage acquisition unit outputs "low level" when the circuit breaker is closed; when the breaker is opened, the voltage acquisition unit outputs a high level.
5. The life cycle statistics system of the circuit breaker according to claim 4, wherein when "low level" is obtained, one closing is recorded, thereby obtaining the total number of times of closing the circuit breaker; when the high level is obtained, the switching off is recorded once, so that the total switching off times of the circuit breaker are obtained.
6. The life cycle counting system of the circuit breaker according to claim 4, wherein if the first operation and the first command do not match, the first command matches the output of the voltage acquisition unit, and the second operationMake a match with the second instruction, P 2 -P 1 =LP 2 -LP 1 。
7. The system of claim 4, wherein if the first operation and the first command do not match, the first command matches the output of the voltage acquisition unit, and the second operation and the second command match, V remains unchanged.
8. The system of claim 4, wherein if the first operation matches the first command, the first issue time point P 1 And a first execution time point P 2 When the difference is greater than V, then v=v (P 2 -P 1 ）/（LP 2 -LP 1 ）。
9. The system of claim 8, wherein if the first operation does not match the first command, the first command matches the output of the voltage acquisition unit, and the steps of:
s001, a first preset time delay threshold list H= { H is obtained 1 ，H 2 ，…，H r ，…，H m }，H r The value range of r is 1 to m, and m is the number of the preset delay thresholds used in the history time period;
s002, obtain H max ={H 1 ，H 2 ，…，H r ，…，H m }；
S003，V=H max 。
10. The usage period statistics system for a circuit breaker according to claim 6, further comprising: and the alarm unit is used for sending an alarm prompt if the first instruction is not matched with the output of the voltage acquisition unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310920323.1A CN116626483B (en) | 2023-07-26 | 2023-07-26 | Service cycle statistics system of circuit breaker |
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| CN202310920323.1A CN116626483B (en) | 2023-07-26 | 2023-07-26 | Service cycle statistics system of circuit breaker |
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| CN116626483B CN116626483B (en) | 2023-11-14 |
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| CN116626483B (en) | 2023-11-14 |
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