CN212965315U - Automatic testing device for performance of low-voltage electric air switch - Google Patents
Automatic testing device for performance of low-voltage electric air switch Download PDFInfo
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- CN212965315U CN212965315U CN202021537973.6U CN202021537973U CN212965315U CN 212965315 U CN212965315 U CN 212965315U CN 202021537973 U CN202021537973 U CN 202021537973U CN 212965315 U CN212965315 U CN 212965315U
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Abstract
The utility model relates to an equipment operation and maintenance technical field specifically disclose an electric air switch performance automatic testing arrangement of low pressure. The device comprises a microcomputer 1, an air switch interface 6 and a trip monitoring 7, wherein the air switch interface 6 is connected with the microcomputer 1 through the trip monitoring 7, the air switch interface 6 is connected with an air switch to be detected and inputs current for the air switch to be detected, the switching-on and switching-off states of the air switch to be detected are collected through the trip monitoring 7 and fed back to the microcomputer 1 for data processing, and the microcomputer 1 can display a measuring result through a display screen 4 connected with the microcomputer 1 after processing a feedback signal of the trip monitoring 7. The device starts from the demand, through the logic takes place for full automatic electric current to and the mechanism design of automatic reclosing, realized the full automatic check-up of air switch, in addition, through two kinds of presentation forms of graphical and table, the visual display check-up result.
Description
Technical Field
The utility model belongs to the technical field of equipment operation and maintenance, concretely relates to electric air switch performance automatic testing arrangement of low pressure.
Background
Low-voltage air switches (miniature circuit breakers) are widely used both in the industrial and civil fields, as are nuclear power plants. The air switch is divided into a direct current DC and an alternating current AC according to the alternating current and direct current characteristics of the air switch, the air switch can be divided into A-B-C-D according to the tripping performance of the air switch, and the 4 different tripping curves correspond to different protection classifications. Class a trip curve: the tripping current of the tripper is 2-3 times; class B trip curve: the tripping current of the tripper is 3-5 times; class C trip curve: the tripping current of the tripper is 5-10 times; class D trip curve: the tripping current of the tripper is 10-20 times.
The existing spare air switches replaced in the nuclear power plants only execute simple mechanical opening and closing and contact measurement work, and the timing limit and inverse time limit characteristic curves of the air switches are not verified and checked, so that the possibility of operation rejection or misoperation caused by the performance reduction of the circuit breakers exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic testing arrangement of low pressure electric air switch performance, solve the problem of the unable check-up of low pressure air switch characteristic curve down, through setting for the air switch model of matching, the automatic characteristic curve who corresponds air switch of calling out, accomplish the air switch wiring back, carry out current output according to the curve multiple automatically, the tripping operation condition of switch is kept watch on constantly simultaneously, and the time record according to the tripping operation is got ready and is shown in the check-up curve, finally judge whether air switch is in qualified scope through getting ready the curve, and give whether qualified conclusion, help the serviceman to judge the usability of spare part fast. The full-automatic calibration method designed by the patent saves manual adjustment, manual setting, manual mapping time and one-key calibration automatic judgment, and enables the calibration of the air switch to be simpler.
The technical scheme of the utility model as follows: the automatic testing device for the performance of the low-voltage electric air switch comprises a microcomputer, an air switch interface and trip monitoring, wherein the air switch interface is connected with the microcomputer through the trip monitoring, the air switch interface is connected with an air switch to be tested and inputs current for the air switch to be tested, the switching-on and switching-off states of the air switch to be tested are collected through the trip monitoring and fed back to the microcomputer for data processing, and the microcomputer can display a measuring result through a display screen connected with the microcomputer after processing a feedback signal of the trip monitoring.
The microcomputer is connected with the air switch interface through the automatic closing module, so that the automatic closing function after tripping and tripping in the test process is realized. The automatic closing module comprises an electromagnet, a rack and a gear, wherein the rack is horizontally arranged, one end of the rack is meshed with the gear, the other end of the rack is connected with the electromagnet, and the rack is controlled by the electromagnet to move back and forth so as to drive the gear to rotate; the gear hole is vertically connected with an air switch handle, and the gear rotates to further push the air switch handle to be switched on.
The microcomputer is connected with the air switch interface through a current generation module, and the current generation module sequentially controls the current generator to output rated current values of 1.13 times, 2 times, 3 times and the like to the air switch interface according to a tripping curve of the air switch under the control of the microcomputer.
The display screen is a human-computer interaction end, the type of the air switch to be tested is input to the microcomputer through the display screen, and after the microcomputer processes data, the tripping curve of the air switch of the type is displayed on the display screen.
The testing device also comprises a battery module which is respectively connected with the microcomputer and the current generation module and provides a working power supply for the whole device.
The microcomputer is also connected with an acousto-optic alarm which can remind or report errors of low electric quantity and device faults.
The micro-electricity is also connected with an on/off button which is a multiplexing button, the short press is the on, and the long press is the off for 3 seconds.
The control core of the microcomputer is an Atmega128 singlechip.
The utility model discloses a show the effect and lie in: a low pressure electric air switch performance automatic testing arrangement start from the demand, the system analysis has gathered several kinds of common air switches of nuclear power plant to with various tripping curve digitalizations, take place the logic through full-automatic electric current, and the mechanism design of autoeclosing, realized air switch's full automatic check-up, in addition, show the form through two kinds of graphics and table check-up, visual display the check-up result.
Drawings
Fig. 1 is a control logic diagram of an automatic testing device for low-voltage electric air switch performance according to the present invention;
FIG. 2 is a hardware block diagram of an automatic testing device for low-voltage electric air switch performance
In the figure: 1. a microcomputer; 2. an on/off button; 3. a battery module; 4. a display screen; 5. a current generator module; 6. an air switch interface; 7. monitoring trip; 8. an automatic closing module; 9. and (6) sound and light alarm.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 2, an automatic testing device for the performance of a low-voltage electric air switch comprises a device operation module and a device testing module, wherein the device operation module comprises a microcomputer 1, a power on/off button 2, a battery module 3 and a display screen 4, and the device testing module comprises a current generation module 5, an air switch interface 6, a trip monitoring module 7, an automatic switch-on module 8 and an acousto-optic alarm module 9; the display screen 4 is connected with the current generation module 5 through the microcomputer 1, wherein the display screen 4 is a human-computer interaction end, a user inputs and feeds back the type of the air switch to be tested to the microcomputer 1 through the display screen 4, the control core of the microcomputer 1 is an Atmega128 single chip microcomputer which can display the type of the air switch tripping curve on the display screen 4, and meanwhile, the microcomputer 1 respectively outputs rated currents of 1.13 times, 2 times, 3 times and the like according to the type of the air switch tripping curve and the sequence control current generation module 5. The current generation module 5 is connected with the air switch interface 6 and outputs current to the air switch interface 6. The air switch interface 6 is connected with the microcomputer 1 through the trip monitoring 7, wherein the air switch interface 6 is connected with an air switch to be tested and inputs current for the air switch to be tested, the switching-on and switching-off states of the air switch to be tested are collected through the trip monitoring 7 and fed back to the microcomputer 1 for data processing, and the microcomputer 1 can process the feedback signal of the trip monitoring 7 and then display the measurement result through the display screen 4 connected with the microcomputer 1; the microcomputer 1 is connected with the air switch interface 6 through the automatic closing module 8, so that automatic closing can be performed after each tripping trip in the checking process, and the next tripping experiment is convenient to perform; the microcomputer 1 and the current generation module 5 are respectively connected with the battery module 3, and the battery module 3 adopts a rechargeable lithium battery with 12V voltage and 10Ah capacity and can provide working power supply for the microcomputer 1 and the current generation module 5; the microcomputer 1 is connected with an on/off button 2, the on/off button 2 is a multiplexing button, the short press is the on, and the long press is the off for 3 seconds; the microcomputer 1 is connected with an acousto-optic alarm 9, and the acousto-optic alarm 9 realizes the functions of low electric quantity and device fault alarm.
Claims (8)
1. The utility model provides a low pressure electric air switch performance automatic testing device which characterized in that: the device comprises a microcomputer (1), an air switch interface (6) and a trip monitoring device (7), wherein the air switch interface (6) is connected with the microcomputer (1) through the trip monitoring device (7), the air switch interface (6) is connected into the air switch to be detected and inputs current for the air switch to be detected, the switching-on and switching-off states of the air switch to be detected are collected through the trip monitoring device (7) and fed back to the microcomputer (1) for data processing, and the microcomputer (1) can display the measuring results through a display screen (4) connected with the microcomputer (1) after processing the feedback signals of the trip monitoring device (7).
2. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the microcomputer (1) is connected with the air switch interface (6) through an automatic switching-on module (8), so that the automatic switching-on function after tripping and tripping in the test process is realized; the automatic closing module (8) comprises an electromagnet, a rack and a gear, wherein the rack is horizontally arranged, one end of the rack is meshed with the gear, the other end of the rack is connected with the electromagnet, and the rack is controlled by the electromagnet to move back and forth so as to drive the gear to rotate; the gear hole is vertically connected with an air switch handle, and the gear rotates to further push the air switch handle to be switched on.
3. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the microcomputer (1) is connected with the air switch interface (6) through the current generation module (5), and the current generation module (5) sequentially controls the current generator to output rated current values of 1.13 times, 2 times, 3 times and the like to the air switch interface (6) according to a tripping curve of the air switch under the control of the microcomputer (1).
4. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the display screen (4) is a human-computer interaction end, the type of the air switch to be tested is input into the microcomputer (1) through the display screen (4), and after the microcomputer (1) processes data, the tripping curve of the air switch of the type is displayed on the display screen (4).
5. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the testing device also comprises a battery module (3), wherein the battery module (3) is respectively connected with the microcomputer (1) and the current generation module (5) and provides a working power supply for the whole device.
6. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the microcomputer (1) is also connected with an acousto-optic alarm (9), and the acousto-optic alarm (9) can remind or report errors of low electric quantity and device faults.
7. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the microcomputer (1) is also connected with an on/off button (2), the on/off button (2) is a multiplexing button, the short button is used for starting up, and the long button is used for 3 seconds for stopping up.
8. An automatic testing device for the performance of a low-voltage electric air switch according to claim 1, characterized in that: the control core of the microcomputer (1) is an Atmega128 singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021537973.6U CN212965315U (en) | 2020-07-29 | 2020-07-29 | Automatic testing device for performance of low-voltage electric air switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021537973.6U CN212965315U (en) | 2020-07-29 | 2020-07-29 | Automatic testing device for performance of low-voltage electric air switch |
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| CN212965315U true CN212965315U (en) | 2021-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
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2020
- 2020-07-29 CN CN202021537973.6U patent/CN212965315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113078034A (en) * | 2021-04-26 | 2021-07-06 | 福建工程学院 | Household air switch device capable of automatically switching on after tripping and control method |
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