CN113406491A - Breaker opening and closing testing device - Google Patents
Breaker opening and closing testing device Download PDFInfo
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- CN113406491A CN113406491A CN202110872995.0A CN202110872995A CN113406491A CN 113406491 A CN113406491 A CN 113406491A CN 202110872995 A CN202110872995 A CN 202110872995A CN 113406491 A CN113406491 A CN 113406491A
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- circuit breaker
- test
- control unit
- main control
- voltage
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- 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
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
Abstract
The application discloses a breaker opening and closing testing device which comprises a main control unit, a voltage regulator and a breaker to be tested; the main control unit, the voltage regulator and the circuit breaker are sequentially connected, and the main control unit is connected with a position signal output end of the circuit breaker; the main control unit is used for controlling the voltage regulator to randomly output the action voltage within a first preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one action test, and repeating the action test until the preset first test times are reached; and controlling the voltage regulator to randomly output the disturbance voltage within a second preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one-time disturbance test, and repeating the disturbance test until the preset second test times are reached. This application utilizes the main control unit automatic control voltage regulator to open and shut the floodgate test to the circuit breaker, no longer need the manual control input voltage to test the circuit breaker, has saved the manpower to automatic testing can effectively improve test speed, has improved efficiency of software testing.
Description
Technical Field
The invention relates to the field of automation, in particular to a breaker opening and closing testing device.
Background
The high-voltage circuit breaker is used for controlling a high-voltage circuit, is one of important electrical components in the high-voltage circuit, and directly influences the safe operation of a power system according to the working state of the high-voltage circuit breaker. When a part of the power system is in fault, the fault protection device is matched with the protection device and the automatic device, the fault part is quickly cut off from the system, the power failure range is reduced, the accident is prevented from being enlarged, various electrical equipment in the system is protected from being damaged, and the safe operation of the fault-free part of the system is ensured.
The normal opening and closing functions of the circuit breaker are related to the safety switching of other devices in the system and the internal overvoltage, so that the opening and closing test of the circuit breaker before leaving a factory is very important.
In the prior art, the opening and closing tests of the circuit breaker need manual one-time and one-time tests, a large amount of labor needs to be consumed in the testing process, and the testing cost is high and the testing efficiency is low.
Therefore, a more efficient circuit breaker opening and closing testing device is needed.
Disclosure of Invention
In view of this, the present invention provides a circuit breaker opening and closing testing apparatus, which improves testing efficiency. The specific scheme is as follows:
a breaker opening and closing test device comprises a main control unit, a voltage regulator and a breaker to be tested;
the main control unit, the voltage regulator and the circuit breaker are sequentially connected, and the main control unit is connected with a position signal output end of the circuit breaker;
the main control unit is used for controlling the voltage regulator to randomly output an action voltage within a first preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one action test, and repeating the action test until a preset first test frequency is reached; controlling the voltage regulator to randomly output disturbance voltage within a second preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing a disturbance test, and repeating the disturbance test until a preset second test frequency is reached;
and the voltage regulator is used for outputting corresponding action voltage or disturbance voltage to the circuit breaker according to the control of the main control unit.
Optionally, the main control unit is specifically configured to control the voltage regulator to randomly output an action voltage, which is 0.85 to 1.1 times of a rated voltage of the circuit breaker, to the circuit breaker when the circuit breaker is in an open-circuit state and a close-circuit state, receive a position signal fed back by the circuit breaker, complete an action test, and repeat the action test until 5 times is reached; respectively under the breaker is in switching-off and switching-on states, control the voltage regulator random output value range is for being less than or equal to 0.3 times rated voltage's disturbance voltage extremely the breaker receives the position signal of breaker feedback, accomplishes a disturbance test, repeats the disturbance test reaches 5 times.
Optionally, the system further comprises a display 4 connected with the main control unit;
the main control unit is further configured to generate and send test result information to the display 4 according to the position signal of the circuit breaker;
and the display 4 is used for displaying the test result information.
Optionally, the display device further comprises a power supply module respectively connected with the main control unit and the display 4;
and the power supply module is used for supplying power to the main control unit and the display 4.
Optionally, the system further comprises an input module connected with the main control unit;
the input module is used for sending the action voltage or the disturbance voltage manually input by a user to the main control unit.
Optionally, the main control unit is further configured to control the voltage regulator to output the reset voltage to the circuit breaker after the circuit breaker completes one-time action test or disturbance test, so that the circuit breaker resets according to the reset voltage.
Optionally, the main control unit is connected with the circuit breaker through a protection circuit;
the protection circuit is used for preventing the position signal from damaging the main control unit.
Optionally, the protection circuit is an optocoupler;
the optical coupler is respectively connected with the main control unit and the circuit breaker.
Optionally, the system further comprises an alarm connected with the main control unit;
the main control unit is also used for generating an alarm signal to the alarm according to the test result;
and the alarm is used for giving an alarm according to the alarm signal.
The circuit breaker opening and closing test device comprises a main control unit, a voltage regulator and a circuit breaker to be tested; the main control unit, the voltage regulator and the circuit breaker are sequentially connected, and the main control unit is connected with a position signal output end of the circuit breaker; the main control unit is used for controlling the voltage regulator to randomly output the action voltage within a first preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one action test, and repeating the action test until the preset first test times are reached; controlling the voltage regulator to randomly output disturbance voltage within a second preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one-time disturbance test, and repeating the disturbance test until the preset second test times are reached; and the voltage regulator is used for outputting corresponding action voltage or disturbance voltage to the circuit breaker according to the control of the main control unit.
According to the invention, the main control unit is used for automatically controlling the voltage regulator to perform switching test on the circuit breaker, the circuit breaker is not required to be tested by manually controlling the input voltage, the labor is saved, the automatic test can effectively improve the test speed, and the test efficiency is improved.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit breaker opening and closing testing device disclosed by an embodiment of the invention;
fig. 2 is a schematic structural diagram of another breaker opening and closing testing device disclosed by the 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 discloses a breaker opening and closing testing device, which comprises a main control unit 1, a voltage regulator 2 and a breaker 3 to be tested, wherein the main control unit 1 is connected with the voltage regulator 2;
the main control unit 1, the voltage regulator 2 and the circuit breaker 3 are sequentially connected, and the main control unit 1 is connected with a position signal output end of the circuit breaker 3;
the main control unit 1 is used for controlling the voltage regulator 2 to randomly output an action voltage within a first preset range to the circuit breaker 3, receiving a position signal fed back by the circuit breaker 3, completing one action test, and repeating the action test until a preset first test frequency is reached; the voltage regulator 2 is controlled to randomly output the disturbance voltage within a second preset range to the circuit breaker 3, a position signal fed back by the circuit breaker 3 is received, one disturbance test is completed, and the disturbance test is repeated until the preset second test times are reached;
and the voltage regulator 2 is used for outputting corresponding action voltage or disturbance voltage to the circuit breaker 3 according to the control of the main control unit 1.
Specifically, in order to improve the switching test efficiency of the circuit breaker 3, the main control unit 1 is used for controlling the voltage regulator 2 to output corresponding action voltage or disturbance voltage, so that the automatic test of the circuit breaker 3 is realized.
Specifically, whether the breaker 3 is qualified or not needs to be capable of actively acting within a certain voltage range to ensure sensitivity, and also needs to have anti-interference capability within a certain voltage range, so that misoperation caused by a small amount of voltage is avoided, production and life are delayed, and reliability is ensured.
Specifically, the main control unit 1 controls the voltage regulator 2 to randomly output an action voltage within a first preset range to the circuit breaker 3, so that the circuit breaker 3 can act in response to the action voltage, the main control unit 1 receives a position signal fed back by the circuit breaker 3 through a corresponding detection interface, one-time action test is completed, in order to ensure the accuracy of the test, so that the performance of the circuit breaker 3 can be fully judged, the action test is repeated for multiple times, until the preset first test time is reached, the final test result of the circuit breaker 3 can be obtained, if the circuit breaker 3 responds to the action voltage every time to perform the action test, the circuit breaker 3 can be considered to have no problem in the action test, if one-time test failure exists, the circuit breaker 3 is considered to be unqualified in the test, and the quality problem exists.
Further, in order to test the switching-on function of the circuit breaker 3, the main control unit 1 may control the voltage regulator 2 to randomly output an action voltage having a value range of 0.85 to 1.1 times of a rated voltage of the circuit breaker 3 to the circuit breaker 3 in a switching-off state of the circuit breaker 3, so that the circuit breaker 3 can respond according to the action voltage to perform a switching-on action, and after receiving a position signal fed back by the circuit breaker 3, the main control unit 1 completes a switching-on action test, and in order to ensure test accuracy, the same circuit breaker 3 to be tested can repeat the switching-on action test at least until reaching 5 times.
Specifically, the test is passed only if all the closing actions test that the breaker 3 is successfully closed, and the test is failed if the breaker 3 is not successfully closed once, so that the breaker 3 is unqualified.
Further, similarly, in order to test the switching-off function of the circuit breaker 3, the main control unit 1 may control the voltage regulator 2 to randomly output an action voltage having a value range of 0.85 to 1.1 times of the rated voltage of the circuit breaker 3 to the circuit breaker 3 in a switching-on state of the circuit breaker 3, so that the circuit breaker 3 can respond according to the action voltage to perform the switching-off action, after receiving the position signal fed back by the circuit breaker 3, the main control unit 1 completes one switching-off action test, and in order to ensure the test accuracy, the same circuit breaker 3 to be tested can repeat the switching-off action test at least until reaching 5 times.
Specifically, the test is passed only if all the opening actions test circuit breakers 3 are successfully opened, and the circuit breakers 3 are unqualified if the opening actions are not successfully opened once.
Specifically, after the circuit breaker 3 completes the opening action test and the closing action test respectively, the circuit breaker 3 can be considered to complete the whole action test process, and after the circuit breaker 3 completes the action test, the main control unit 1 still needs to continue to execute the disturbance test on the circuit breaker 3 to verify the reliability of the circuit breaker 3.
Further, in order to test the disturbance resistance function of the circuit breaker 3 during switching off, the main control unit 1 may control the voltage regulator 2 to randomly output a disturbance voltage with a value range of 0.3 times or less of a rated voltage to the circuit breaker 3 when the circuit breaker 3 is in a switching off state, so that the circuit breaker 3 is expected not to respond according to the disturbance voltage, and switching on is not performed, and after receiving a position signal fed back by the circuit breaker 3, the main control unit 1 completes one switching off disturbance test, and in order to ensure the test accuracy, the same circuit breaker 3 to be tested can repeat the switching off disturbance test at least until reaching 5 times.
Specifically, the test is calculated to be passed only if all the opening disturbance test circuit breakers 3 do not act, and if one action is performed, the calculation is failed, and the circuit breakers 3 are unqualified.
Further, similarly, in order to test the disturbance resistance function of the circuit breaker 3 during switching on, the main control unit 1 may first control the voltage regulator 2 to randomly output a disturbance voltage with a value range of 0.3 times or less of the rated voltage to the circuit breaker 3 in a state that the circuit breaker 3 is switched on, so as to expect that the circuit breaker 3 does not respond according to the disturbance voltage, and thus switching off is not performed, after the main control unit 1 receives a position signal fed back by the circuit breaker 3, a switching-on disturbance test is completed, and in order to ensure the test accuracy, the same circuit breaker 3 to be tested can repeat the switching-on disturbance test at least until reaching 5 times.
Specifically, the test is only calculated to pass if all the closing disturbance test circuit breakers 3 do not act, and the circuit breakers 3 are unqualified if the circuit breakers fail to act once.
Specifically, after the circuit breaker 3 completes the switching-off disturbance test and the switching-on disturbance test respectively, the circuit breaker 3 can be considered to complete the whole disturbance test process, and the reliability of the circuit breaker 3 can be judged.
Wherein, circuit breaker 3 can insert a test circuit alone when the test, circuit breaker 3 just has the change of voltage and electric current after circuit breaker 3 closes a floodgate like this, at this moment, main control unit 1 just can judge that circuit breaker 3 successfully closes a floodgate through the voltage or the current change that detect circuit breaker 3, obtain circuit breaker 3's positional information, of course, if circuit breaker 3 does not close a floodgate, so main control unit 1 does not detect circuit breaker 3's voltage or current change in certain time, just can judge that circuit breaker 3 does not close a floodgate, thereby judge circuit breaker 3's the floodgate state that opens and shuts.
It can be understood that after each action test or disturbance test, the position of the circuit breaker 3 needs to be reset before the next test can be performed.
Therefore, the embodiment of the invention automatically controls the voltage regulator 2 to perform the switching test on the circuit breaker 3 by using the main control unit 1, the circuit breaker 3 is not required to be tested by manually controlling the input voltage, the manpower is saved, the test speed can be effectively increased by automatic test, and the test efficiency is improved.
The embodiment of the invention discloses a specific breaker 3 opening and closing testing device, and compared with the previous embodiment, the technical scheme is further explained and optimized in the embodiment. Referring to fig. 2, specifically:
specifically, the system can further comprise a display 4 connected with the main control unit 1;
the main control unit 1 is further used for generating and sending test result information to the display 4 according to the position signal of the circuit breaker 3;
and the display 4 is used for displaying the test result information.
Specifically, the main control unit 1 sends the test result information to the display information, so that the display information displays specific test success information or test failure information for the tester to check.
Specifically, the system can further comprise a power supply module 5 respectively connected with the main control unit 1 and the display 4;
and the power supply module 5 is used for supplying power to the main control unit 1 and the display 4.
Specifically, the system also comprises an input module 6 connected with the main control unit 1;
and the input module 6 is used for sending the action voltage or the disturbance voltage manually input by the user to the main control unit 1.
Specifically, the input module 6 may be further configured to allow a tester to input the action voltage, the disturbance voltage, the first test frequency and/or the second test frequency, the test trigger command, and the like through the input module 6 under a special condition, so as to perform a manual test.
Specifically, the main control unit 1 may be further configured to control the voltage regulator 2 to output the reset voltage to the circuit breaker 3 after completing the one-time action test or the disturbance test on the circuit breaker 3, so that the circuit breaker 3 is reset according to the reset voltage.
Specifically, the main control unit 1 is connected with the circuit breaker 3 through a protection circuit 7;
and the protection circuit 7 is used for avoiding the position signal from damaging the main control unit 1.
Specifically, after the circuit breaker 3 is switched on, the led-out current or voltage signal may be too large to the main control unit 1, which easily causes the main control unit 1 to suffer from impact, and in order to protect the main control unit 1, the protection circuit 7 arranged between the main control unit 1 and the circuit breaker 3 protects the main control unit 1, thereby ensuring that the main control unit 1 can safely obtain the position signal of the circuit breaker 3.
Specifically, the protection circuit 7 may be an optical coupler;
the optical coupler is respectively connected with the main control unit 1 and the circuit breaker 3;
and the optical coupler is used for receiving the position signal of the circuit breaker 3 and sending the position signal to the main control unit 1.
Specifically, realize the optoelectronic isolation through the opto-coupler to ensure that the position signal that produces when circuit breaker 3 closes the floodgate can not cause the impact to main control unit 1, the opto-coupler is after receiving circuit breaker 3's position signal, converts circuit breaker 3's position signal into light signal from the one end of opto-coupler, converts light signal into signal of telecommunication to main control unit 1 from the other end of opto-coupler again, realizes the protection to main control unit 1.
Specifically, the system can further comprise an alarm connected with the main control unit 1;
the main control unit 1 is also used for generating an alarm signal to the alarm according to the test result;
and the alarm is used for alarming according to the alarm signal.
Specifically, when the circuit breaker 3 fails in testing, the alarm can be set to alarm to remind testers of the failure in testing.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The technical content provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained in this document by applying specific examples, and the above description of the examples is only used to help understanding the method of the present invention and the core idea thereof; 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 breaker opening and closing testing device is characterized by comprising a main control unit, a voltage regulator and a breaker to be tested;
the main control unit, the voltage regulator and the circuit breaker are sequentially connected, and the main control unit is connected with a position signal output end of the circuit breaker;
the main control unit is used for controlling the voltage regulator to randomly output an action voltage within a first preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing one action test, and repeating the action test until a preset first test frequency is reached; controlling the voltage regulator to randomly output disturbance voltage within a second preset range to the circuit breaker, receiving a position signal fed back by the circuit breaker, completing a disturbance test, and repeating the disturbance test until a preset second test frequency is reached;
and the voltage regulator is used for outputting corresponding action voltage or disturbance voltage to the circuit breaker according to the control of the main control unit.
2. The circuit breaker opening and closing test device according to claim 1, wherein the main control unit is specifically configured to control the voltage regulator to randomly output an action voltage, which is in a value range of 0.85 to 1.1 times of a rated voltage of the circuit breaker, to the circuit breaker when the circuit breaker is in an opening state and a closing state, receive a position signal fed back by the circuit breaker, complete an action test, and repeat the action test until 5 times is reached; respectively under the breaker is in switching-off and switching-on states, control the voltage regulator random output value range is for being less than or equal to 0.3 times rated voltage's disturbance voltage extremely the breaker receives the position signal of breaker feedback, accomplishes a disturbance test, repeats the disturbance test reaches 5 times.
3. The circuit breaker opening and closing test device according to claim 1, further comprising a display 4 connected to the main control unit;
the main control unit is further configured to generate and send test result information to the display 4 according to the position signal of the circuit breaker;
and the display 4 is used for displaying the test result information.
4. The circuit breaker opening and closing test device according to claim 3, further comprising a power supply module connected to the main control unit and the display 4, respectively;
and the power supply module is used for supplying power to the main control unit and the display 4.
5. The circuit breaker opening and closing test device according to claim 1, further comprising an input module connected to the main control unit;
the input module is used for sending the action voltage or the disturbance voltage manually input by a user to the main control unit.
6. The circuit breaker opening and closing test device according to claim 1, wherein the main control unit is further configured to control the voltage regulator to output a reset voltage to the circuit breaker after completing one motion test or disturbance test on the circuit breaker, so that the circuit breaker resets according to the reset voltage.
7. The circuit breaker opening and closing test device according to any one of claims 1 to 6, wherein the main control unit is connected with the circuit breaker through a protection circuit;
the protection circuit is used for preventing the position signal from damaging the main control unit.
8. The circuit breaker opening and closing test device according to claim 7, wherein the protection circuit is an opto-coupler;
the optical coupler is respectively connected with the main control unit and the circuit breaker.
9. The circuit breaker opening and closing test device according to claim 8, further comprising an alarm connected to the main control unit;
the main control unit is also used for generating an alarm signal to the alarm according to the test result;
and the alarm is used for giving an alarm according to the alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872995.0A CN113406491A (en) | 2021-07-30 | 2021-07-30 | Breaker opening and closing testing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872995.0A CN113406491A (en) | 2021-07-30 | 2021-07-30 | Breaker opening and closing testing device |
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| Publication Number | Publication Date |
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| CN113406491A true CN113406491A (en) | 2021-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110872995.0A Pending CN113406491A (en) | 2021-07-30 | 2021-07-30 | Breaker opening and closing testing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325375A (en) * | 2021-12-31 | 2022-04-12 | 福建中网电气有限公司 | Multifunctional detection equipment and detection method for pole-mounted circuit breaker |
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2021
- 2021-07-30 CN CN202110872995.0A patent/CN113406491A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114325375A (en) * | 2021-12-31 | 2022-04-12 | 福建中网电气有限公司 | Multifunctional detection equipment and detection method for pole-mounted circuit breaker |
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