CN117570869B - Contact box detection device for high-voltage switch cabinet - Google Patents
Contact box detection device for high-voltage switch cabinet Download PDFInfo
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- CN117570869B CN117570869B CN202311528492.7A CN202311528492A CN117570869B CN 117570869 B CN117570869 B CN 117570869B CN 202311528492 A CN202311528492 A CN 202311528492A CN 117570869 B CN117570869 B CN 117570869B
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- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
- G01K7/24—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The application relates to the technical field of electrical equipment, in particular to a contact box detection device for a high-voltage switch cabinet, which comprises a movable platform, wherein the movable platform comprises a movable platform body and a contact box body; the contact box is positioned at one side of the mobile platform and provides insulation protection; the fixed contact is arranged in the contact box; the laser detection assembly is arranged on the mobile platform and comprises a first laser ranging sensor and is used for acquiring distance data from the first laser ranging sensor to the fixed contact; the movable contact is used for being connected with the fixed contact in a matching way, is arranged on the movable platform and is provided with a through hole for laser to pass through; and the processor is electrically connected with the first laser ranging sensor and is used for processing the distance data. According to the application, the engagement state of the moving contact and the fixed contact in the contact box is detected in an intuitive and instant mode through the laser detection assembly.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to a contact box detection device for a high-voltage switch cabinet.
Background
The contact box is an insulating part applied to various handcart type high-voltage switch cabinets, and a busbar for input and output can be connected at the contact box. The structure of the existing contact box generally comprises a cylindrical body with a closed top, wherein the bottom of the body is opened to allow a moving contact to extend in, a connecting port is additionally formed in the side part of the body in a penetrating manner and used for allowing a busbar to extend in, an insert used for fixing a fixed contact is further fixed on the inner side of the top of the body, and the fixed contact is connected with the busbar, so that the moving contact and the fixed contact can be fixedly connected and conducted in the body (as shown in fig. 6).
In the contact box, the meshing state between the movable contact and the fixed contact is used for judging whether the switch connection is good, however, the detection of the meshing condition of the movable contact and the fixed contact is not directly (intuitively, directly, in real time and instantly) in the manufacturing and debugging link of the circuit breaker or in the electrified operation working condition, and most of the detection is judged by adopting an indirect method (by means of intermediate tools or impression observation); for the circuit breaker running in electrified mode, almost most of the circuit breakers can not be detected directly or under all working conditions, a plurality of blind detection areas still exist, and contact failure between a moving contact and a fixed contact (shown in fig. 7 and 8) can not be found in time easily, so that the contacts heat, even the contact box is damaged due to overheating, and the safety and the reliability of the handcart type high-voltage switch cabinet are affected.
Disclosure of Invention
In order to detect the meshing state of a moving contact and a fixed contact in a contact box in an intuitive and instant mode, the application provides a contact box detection device for a high-voltage switch cabinet.
The application provides a contact box detection device for a high-voltage switch cabinet, which adopts the following technical scheme:
Contact box detection device for high tension switchgear includes:
A mobile platform;
The contact box is positioned at one side of the mobile platform and provides insulation protection;
the fixed contact is arranged in the contact box;
The laser detection assembly is arranged on the mobile platform and comprises a first laser ranging sensor and is used for acquiring distance data from the first laser ranging sensor to the fixed contact;
The movable contact is used for being connected with the fixed contact in a matched manner, is arranged on the movable platform and is provided with a through hole for laser to pass through;
And the processor is electrically connected with the first laser ranging sensor and is used for processing the distance data.
By adopting the technical scheme, the relative positions of the fixed contact and the movable contact are detected. Specifically, the first laser ranging sensor emits laser beams to pass through the through hole of the moving contact, diffuse reflection occurs on the end face of the fixed contact, and the diffusely reflected laser beams are captured by the receiving end of the first laser ranging sensor to obtain distance data from the first laser ranging sensor to the fixed contact; and the first laser ranging sensor and the moving contact are arranged on the moving platform in a armful manner, when the moving platform moves, the relative distance between the first laser ranging sensor and the moving contact is not changed, so that the relative distance between the first laser ranging sensor and the moving contact is subtracted from the distance data between the first laser ranging sensor and the moving contact, the relative distance between the moving contact and the moving contact can be obtained for adjustment, the situation that the meshing depth of the moving contact and the moving contact is too shallow and poor contact is caused is avoided, and the situation that the meshing depth is too deep and damage to the moving contact and the moving contact is caused is avoided.
Preferably, the side surface of the fixed contact, which is close to the moving contact, is provided with a diffuse reflection area and a specular reflection area, diffuse reflection occurs when light irradiates the diffuse reflection area, specular reflection occurs when light irradiates the specular reflection area, the specular reflection area and the diffuse reflection area are concentrically arranged on the side surface by a side surface geometric center, and the diffuse reflection area is positioned at the inner side of the specular reflection area.
By adopting the technical scheme, whether the plugging inclination angle of the moving contact and the fixed contact is within the allowable range is judged. Specifically, when the movable contact and the fixed contact are coaxially inserted, the laser beam irradiates the center of the fixed contact, and when the movable contact and the fixed contact are inclined in an inserted manner, the laser beam deviates from the center of the side surface and irradiates other positions of the side surface. In addition, the transmitter and the receiving end of the laser ranging sensor are not concentrically arranged, the propagation path of the laser path is required to be reflected at a certain angle, the turned-back light can be received by the receiving end, the laser beam is vertically irradiated on the side surface, the diffuse reflection occurs to reflect the light captured by the receiving end, the light reflected by the mirror surface can not be received by the receiving end, and the range of the diffuse reflection area, namely the allowable range of the plugging inclination angle, is formed.
Preferably, the processor is electrically connected with an alarm, a distance range section is arranged in the processor, and the alarm alarms when the value of the distance data acquired by the first laser ranging sensor is out of the distance range section.
By adopting the technical scheme, in the installation and debugging stage of the high-voltage switch cabinet, debugging guidance is made, when the value of the distance data acquired by the first laser ranging sensor is out of the distance range, namely the relative distance between the moving contact and the fixed contact is not in a proper range, the processor continuously sends a signal to the alarm to continuously alarm, so that debugging installation personnel is prompted to adjust, and the processor can adjust the size of an output signal according to the difference between the distance data and the distance range, so that the alarm intensity is adjusted, and the debugging installation personnel is prompted to adjust the amount; and in the operation stage of the high-voltage switch cabinet, when the high-voltage switch cabinet is subjected to external vibration, the movable contact and the fixed contact can also cause corresponding vibration and displacement, and the processor can also send a signal to the alarm to alarm so as to remind maintenance personnel of adjustment.
Preferably, the contact box is provided with a temperature detection component for acquiring temperature data on the contact box, and is electrically connected with the processor, a temperature data threshold value is arranged in the processor, and the alarm alarms when the value of the temperature data acquired by the temperature detection component exceeds the threshold value.
By adopting the technical scheme, the temperature in the contact box is detected, the temperature data are transmitted to the processor in real time for processing, the processor compares the acquired temperature data with the temperature digital threshold value, when the threshold value is exceeded, a signal is sent to the alarm, the alarm can trigger an alarm to remind an operator to take measures in time, so that the contact box is prevented from being damaged or other safety problems are avoided due to overhigh temperature, and the normal operation of equipment and the safety of workers are ensured.
Preferably, the temperature detection assembly comprises a strain gauge, wherein the strain gauge is arranged on the contact box and is connected with a bridge detection circuit, and the bridge detection circuit is electrically connected with the processor.
By adopting the technical scheme, the temperature data are acquired, specifically, the strain gauge is deformed when being subjected to temperature change caused by heating of the contact box and strain generated by heating of the contact box, the deformation can cause resistance change, the bridge detection circuit measures the resistance change and acquires the temperature data through calculation of the processor, and judgment and alarm are carried out according to a preset temperature data threshold value. The strain gauge is adopted as the temperature detection component, so that the temperature change condition of the contact box can be accurately obtained in real time. Meanwhile, the strain gauge is relatively simple to install and connect, and can be conveniently connected with the processor
Preferably, the processor is electrically connected with a vibration detection assembly, and the vibration detection assembly is used for recording the vibration condition of the fixed contact relative to the moving contact, and is electrically connected with the processor.
By adopting the technical scheme, the vibration between the moving contact and the fixed contact is detected for analyzing the electric connection state between the moving contact and the fixed contact, so that data transmission errors or system faults caused by poor electric connection or looseness can be effectively avoided, potential problems can be found and solved early, and the reliability and stability of the system are improved.
Preferably, the vibration detection assembly comprises a second laser ranging sensor and a reflecting cover, wherein the second laser ranging sensor is coaxially arranged with the reflecting cover, and the reflecting cover is arranged on the contact box.
By adopting the technical scheme, the vibration between the moving contact and the fixed contact is detected. Specifically, when the fixed contact and the moving contact are coaxially connected, the laser beam of the second laser ranging sensor irradiates the center of the reflecting cover, when vibration is applied between the moving contact and the fixed contact, the laser beam of the second laser ranging sensor deviates from the center of the reflecting cover, the measured distance data changes, and the vibration condition can be obtained through conversion.
Preferably, the mobile platform comprises a saddle, a pulley and a guide rail, wherein the guide rail is fixed on a cabinet wall of the switch cabinet, the saddle is slidably mounted on the guide rail, and the pulley is mounted on the bottom of the saddle.
By adopting the technical scheme, the movable contact can be stably connected to the static contact in a butt joint manner, so that reliable electrical connection is realized, the guide rail can provide stable support and guide, the condition that the saddle shakes or deviates from a track in the moving process is effectively prevented, the butt joint process of the contact is more stable, the possibility of errors and damage is reduced, and the maintenance and repair times and cost are reduced.
Preferably, the diffuse reflection area is circular and has a diameter in the range of a,0 < a.ltoreq.3 mm.
By adopting the technical scheme, the angle thresholds of the moving contact and the fixed contact in all the inclined directions are the same through the circular arrangement, and the diameter range is adjusted to adjust the angle thresholds in all the inclined directions.
In summary, the application has the following beneficial technical effects:
the meshing states of the movable contact and the fixed contact in the contact box are detected in an intuitive and instant mode through the laser detection assembly.
Drawings
FIG. 1 is a schematic view of the overall structure of a front-side angle of an embodiment of the present application;
FIG. 2 is a schematic view of the overall structure of the flat side angle of an embodiment of the present application;
FIG. 3 is a schematic view of the overall structure of the front-rear side angle of an embodiment of the present application;
FIG. 4 is an enlarged partial view of portion A of FIG. 3;
FIG. 5 is an enlarged partial view of portion B of FIG. 1;
fig. 6 is a state in which the moving contact and the fixed contact are normally engaged;
fig. 7 is a state in which the engagement depth of the moving contact and the fixed contact is too shallow;
fig. 8 shows a state in which the movable contact and the fixed contact are obliquely inserted.
Reference numerals illustrate: 1. a contact box; 2. a busbar; 3. a stationary contact; 4. a mobile platform; 5. a saddle; 6. a pulley; 7. a guide rail; 8. a threaded ring; 9. a screw; 10. matching the buckling position; 11. a mounting plate; 12. a mounting column; 13. a laser detection assembly; 14. a moving contact; 15. a first laser ranging sensor; 16. a diffuse reflection area; 17. a specular reflection area; 18. a temperature detection assembly; 19. a strain gage; 20. a vibration detection assembly; 21. a second laser ranging sensor; 22. a reflective cover.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
Examples:
Referring to fig. 1-3, the contact box detection device for the high-voltage switch cabinet is arranged in the high-voltage switch cabinet and comprises six contact boxes 1, wherein the contact boxes 1 are fixedly arranged in the high-voltage switch cabinet and are arranged in an upper row and a lower row, a bus bar 2 for inputting and outputting A, B, C three phases is correspondingly connected, one end of the bus bar 2 penetrates out of the high-voltage switch cabinet, the other end of the bus bar penetrates into the contact boxes 1 and is connected with a fixed contact 3, and the fixed contact 3 and the contact boxes 1 are concentrically arranged.
Referring to fig. 1-3, a mobile platform 4 is also mounted within the high voltage switchgear. The moving platform 4 is located one side of the fixed contact 3, the moving platform 4 comprises a saddle 5, a pulley 6 and a guide rail 7, the guide rail 7 is fixed on the cabinet wall of the high-voltage switch cabinet, the saddle 5 is slidably mounted on the guide rail 7, the pulley 6 is mounted at the bottom of the saddle 5, a threaded ring 8 is further mounted at the bottom of the saddle 5, a screw rod 9 is connected in the threaded ring 8 in a threaded manner, the screw rod 9 is rotatably mounted on the high-voltage switch cabinet, the screw rod 9 is arranged in parallel with the guide rail 7, and one end, far away from the contact box 1, of the screw rod 9 is provided with a matching buckling position 10 for matching and mounting a handle for rotating the screw rod 9. The saddle 5 is provided with a mounting plate 11 and a mounting column 12, the mounting plate 11 is provided with a laser detection assembly 13, and the mounting column 12 is provided with a movable contact 14.
Referring to fig. 1-3, the laser detection assembly 13 includes a first laser ranging sensor 15, the number of moving contacts 14 and the number of first laser ranging sensors 15 are corresponding to the number of fixed contacts 3, and the first laser ranging sensors 15, the moving contacts 14 and the fixed contacts 3 are arranged at equal heights in sequence. The moving contact 14 is a quincuncial contact, a through hole for the laser beam of the first laser ranging sensor 15 to pass through is formed in the middle of the quincuncial contact, the first laser ranging sensor 15 is electrically connected with a processor (not shown in the figure), and the processor is electrically connected with an alarm (not shown in the figure). The side surface of each fixed contact 3, which is close to the moving contact 14, is provided with a diffuse reflection area 16 and a specular reflection area 17, diffuse reflection occurs when light irradiates the diffuse reflection area 16, specular reflection occurs when light irradiates the specular reflection area 17, the specular reflection area 17 and the diffuse reflection area 16 are concentrically arranged on the side surface with the geometric center of the side surface, the diffuse reflection area 16 is positioned on the inner side of the specular reflection area and is in a circular shape, and the diameter of the diffuse reflection area 16 is 3mm.
In the embodiment of the invention, the processor can be an integrated circuit chip with signal processing capability; in other embodiments, the processor may also be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The distance range interval is preset in the processor.
In the embodiment of the invention, the alarm may be a buzzer which emits sound, an alarm lamp which emits light, a display screen which informs alarm information, or the like. The alarm should issue different alarm messages in the face of different alarm conditions.
The movable platform 4 enables the movable contact 14 to be stably connected to the fixed contact 3 in a butt joint manner, so that reliable electrical connection is realized, the guide rail 7 can provide stable support and guide, the condition that the saddle shakes or deviates from a track in the moving process is effectively prevented, the butt joint process of the contacts is more stable, errors and damage possibility are reduced, and maintenance and repair times and cost are reduced.
The laser detection assembly 13 detects the relative positions of the fixed contact 3 and the movable contact 14. Specifically, the laser beam emitted by the first laser ranging sensor 15 passes through the through hole of the movable contact 14, the end face of the fixed contact 3 is irradiated to generate diffuse reflection, and the diffusely reflected laser is captured by the receiving end of the first laser ranging sensor 15 to obtain the distance data from the first laser ranging sensor 15 to the fixed contact 3; the first laser ranging sensor 15 and the moving contact 14 are installed on the moving platform 4, when the moving platform 4 moves, the relative distance between the first laser ranging sensor 15 and the moving contact 14 is not changed, so that the relative distance between the first laser ranging sensor 15 and the moving contact 14 is subtracted from the distance data between the first laser ranging sensor 15 and the moving contact 3, the relative distance between the moving contact 14 and the moving contact 3 can be obtained for adjustment, the situation that the meshing depth of the moving contact and the moving contact is too shallow and poor contact is caused is avoided, and the situation that the meshing depth is too deep and damage to the moving contact and the moving contact is caused is avoided. When the value of the distance data acquired by the first laser ranging sensor 15 is out of the distance range, that is, the relative distance between the moving contact 14 and the fixed contact 3 is not in the proper range, the processor continuously sends a signal to the alarm to continuously alarm, so as to prompt the debugging installer to adjust, and the processor can adjust the size of the output signal according to the difference between the distance data and the distance range, so that the alarm intensity is adjusted, and the debugging installer is prompted to adjust the amount; in the operation stage of the high-voltage switch cabinet, when the high-voltage switch cabinet is subjected to external vibration, the movable contact 14 and the fixed contact 3 can also cause corresponding displacement, and the processor can also send a signal to the alarm to alarm so as to remind maintenance personnel of adjustment.
Referring to fig. 4, the end face of the first laser ranging sensor 15 has two windows, one being the emitting end of the laser beam and the other being the receiving end of the laser beam. When the movable contact 14 and the fixed contact 3 are coaxially inserted, the laser beam irradiates the center of the fixed contact 3, and when the movable contact 14 and the fixed contact 3 are inserted and inclined, the laser beam deviates from the center of the side surface and irradiates other positions of the side surface. In addition, the transmitter and the receiving end of the laser ranging sensor are not concentrically arranged, the propagation path of the laser path is required to be reflected at a certain angle, the turned-back light can be received by the receiving end, the laser beam is vertically irradiated on the side surface, the diffuse reflection occurs to reflect the light which can be captured by the receiving end, the original path of the light reflected by the mirror surface returns to be incapable of being received by the receiving end, and the alarm gives an alarm. And the range of the diffuse reflection area 16, i.e., the allowable range of the plugging tilt angle.
Referring to fig. 1, 3 and 5, the contact box 1 is provided with a temperature detection assembly 18 for acquiring temperature data on the contact box 1, the temperature detection assembly 18 comprises a strain gauge 19, the strain gauge 19 is attached to the contact box 1 and is connected with a bridge detection circuit, and the bridge detection circuit is electrically connected with the processor. A temperature data threshold is provided within the processor.
In other embodiments, the temperature detection assembly 18 may use infrared imaging, thermocouples, etc. to measure temperature, without limitation.
The temperature in the contact box 1 is detected, temperature data are transmitted to the processor in real time for processing, the processor compares acquired temperature data with the temperature digital threshold value, when the temperature data exceed the threshold value, a signal is sent to the alarm, the alarm can trigger an alarm, and an operator is reminded to take measures in time, so that the contact box 1 is prevented from being damaged or other safety problems caused by overhigh temperature are avoided, and the normal operation of equipment and the safety of staff are guaranteed. Specifically, the strain gauge 19 deforms when being subjected to temperature change caused by heating of the contact box 1 and strain caused by heating of the contact box 1, the deformation causes resistance change, the bridge detection circuit measures the resistance change and obtains temperature data through calculation of a processor, and judgment and alarm are performed according to a preset temperature data threshold. The strain gauge 19 is adopted as the temperature detection component 18, so that the temperature change condition of the contact box 1 can be accurately obtained in real time, and the sensitivity is high and the response is quick. At the same time, the strain gauge 19 is relatively simple to install and connect, and can be easily connected to a processor.
Referring to fig. 1, 3 and 5, the processor is electrically connected with a vibration detection assembly 20, which is used for recording the vibration condition of the fixed contact 3 relative to the moving contact 14, the vibration detection assembly 20 comprises a second laser ranging sensor 21 and a reflecting cover 22, the reflecting cover 22 is a semicircle cover, the reflecting cover 22 is installed on one side of the contact box 1, and the second laser ranging sensor 21 and the reflecting cover 22 are coaxially arranged. In other embodiments, the vibration detection assembly 20 may also employ eddy current sensors, speed sensors, acceleration sensors, load sensors, etc
Vibration between the movable contact 14 and the fixed contact 3 is detected for analyzing the electric connection state between the movable contact 14 and the fixed contact 3, so that data transmission errors or system faults caused by poor electric connection or looseness can be effectively avoided, potential problems can be found and solved early, and the reliability and stability of the system are improved. Specifically, when the fixed contact 3 and the moving contact 14 are coaxially connected, the laser beam of the second laser ranging sensor 21 irradiates the center of the reflecting cover 22, and when vibration is applied between the moving contact 14 and the fixed contact 3, the laser beam of the second laser ranging sensor 21 deviates from the center of the reflecting cover 22, the measured distance data changes, and the vibration condition can be obtained through conversion.
The working principle of the contact box detection device for the high-voltage switch cabinet is as follows: in the process that the moving contact 14 moves towards the fixed contact 3 to be meshed, the first laser ranging sensor 15 emits laser beams to pass through the through hole of the moving contact 14, diffuse reflection occurs on the end face of the fixed contact 3, the laser beams subjected to diffuse reflection are captured by the receiving end of the first laser ranging sensor 15, distance data from the first laser ranging sensor 15 to the fixed contact 3 are obtained, and the relative distance between the moving contact 14 and the fixed contact 3 is obtained through conversion so as to be adjusted; if oblique grafting exceeding a preset range occurs during the moving period, the laser beam irradiates the mirror reflection area of the fixed contact 3, so that the returned laser beam cannot be received, and the preset threshold value exceeding the oblique grafting angle is judged; during operation, temperature data are obtained through measurement and calculation of the strain gauge 19 with high sensitivity and quick response, the temperature of the contact box 1 is detected in real time, distance data of the reflecting cover 22 are obtained through measurement of the second laser ranging sensor 21, and vibration conditions are obtained through conversion.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (6)
1. Contact box detection device for high tension switchgear, its characterized in that: comprising the steps of (a) a step of,
A mobile platform (4);
The contact box (1) is positioned on one side of the mobile platform (4) and provides insulation protection;
the fixed contact (3) is arranged in the contact box (1);
the laser detection assembly (13) is arranged on the mobile platform (4), and the laser detection assembly (13) comprises a first laser ranging sensor (15) and is used for acquiring distance data from the first laser ranging sensor (15) to the fixed contact (3);
the movable contact (14) is used for being connected with the fixed contact (3) in a matching way, is arranged on the movable platform (4) and is provided with a through hole for laser to pass through;
The processor is electrically connected with the first laser ranging sensor (15) and is used for processing the distance data;
the side surface of the fixed contact (3) close to the moving contact (14) is provided with a diffuse reflection area (16) and a specular reflection area (17), diffuse reflection occurs when light irradiates the diffuse reflection area (16), specular reflection occurs when light irradiates the specular reflection area (17), the specular reflection area (17) and the diffuse reflection area (16) are concentrically arranged on the side surface with the side surface geometric center, and the diffuse reflection area (16) is positioned at the inner side of the specular reflection area;
The processor is electrically connected with a vibration detection assembly (20) and is used for recording the vibration condition of the fixed contact (3) relative to the movable contact (14);
The vibration detection assembly (20) comprises a second laser ranging sensor (21) and a reflecting cover (22), wherein the second laser ranging sensor (21) and the reflecting cover (22) are coaxially arranged, and the reflecting cover (22) is arranged in the contact box (1).
2. The contact box detection device for a high-voltage switch cabinet according to claim 1, wherein: the processor is electrically connected with an alarm, a distance range section is arranged in the processor, and the alarm alarms when the value of the distance data acquired by the first laser ranging sensor (15) is out of the distance range section.
3. The contact box detection device for a high-voltage switch cabinet according to claim 2, wherein: the contact box (1) is provided with a temperature detection assembly (18) for acquiring temperature data on the contact box (1), and is electrically connected with the processor, a temperature data threshold value is arranged in the processor, and the alarm alarms when the value of the temperature data acquired by the temperature detection assembly (18) exceeds the threshold value.
4. A contact box detection device for a high-voltage switch cabinet according to claim 3, wherein: the temperature detection assembly (18) comprises a strain gauge (19), wherein the strain gauge (19) is arranged on the contact box (1) and is connected with a bridge detection circuit, and the bridge detection circuit is electrically connected with the processor.
5. The contact box detection device for a high-voltage switch cabinet according to claim 1, wherein: the mobile platform (4) comprises a saddle, a pulley (6) and a guide rail (7), wherein the guide rail (7) is fixed on the cabinet wall of the switch cabinet, the saddle is slidably mounted on the guide rail (7), and the pulley (6) is mounted at the bottom of the saddle.
6. The contact box detection device for a high-voltage switch cabinet according to claim 1, wherein: the diffuse reflection area is circular and has a diameter range of a, and a is more than 0 and less than or equal to 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311528492.7A CN117570869B (en) | 2023-11-15 | 2023-11-15 | Contact box detection device for high-voltage switch cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311528492.7A CN117570869B (en) | 2023-11-15 | 2023-11-15 | Contact box detection device for high-voltage switch cabinet |
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| CN117570869A CN117570869A (en) | 2024-02-20 |
| CN117570869B true CN117570869B (en) | 2024-06-07 |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104872A (en) * | 1997-09-29 | 1999-04-20 | Amada Co Ltd | Work profiling method in laser beam machine, its device and laser machining head |
| DE102007008065A1 (en) * | 2007-02-15 | 2008-08-21 | Valeo Klimasysteme Gmbh | Blower vibration determining method for vehicle blower test station, involves fastening blower to retaining part that is buoyantly supported in different directions, and turning on blower at set of operating points |
| CN201130015Y (en) * | 2007-12-26 | 2008-10-08 | 上海西屋开关有限公司 | Vacuum circuit breaker contact wearing capacity detecting device |
| CN105021132A (en) * | 2015-07-15 | 2015-11-04 | 国家电网公司 | Laser non-contact type centrally-installed cabinet handcart contact stroke tester |
| KR101664326B1 (en) * | 2015-11-18 | 2016-10-24 | 주식회사 한국이알이시 | Sswitchgear having diagnosing deterioration using deterioration detection sensor |
| CN108663181A (en) * | 2018-06-29 | 2018-10-16 | 国网江苏省电力有限公司电力科学研究院 | A kind of Vibration Modal Test system and method for open isolating switch |
| CN112539930A (en) * | 2020-12-07 | 2021-03-23 | 中国长江电力股份有限公司 | GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method |
| CN114465109A (en) * | 2022-02-18 | 2022-05-10 | 杨道华 | Intelligent switch cabinet based on autonomous detection and control method thereof |
| CN218769137U (en) * | 2023-02-28 | 2023-03-28 | 珠海盈源电气有限公司 | High-voltage rotary isolating switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005033180B4 (en) * | 2005-07-13 | 2020-03-12 | Trützschler GmbH & Co Kommanditgesellschaft | Device for detecting a parameter on a plurality of fiber bands fed to a drafting system of a spinning machine |
-
2023
- 2023-11-15 CN CN202311528492.7A patent/CN117570869B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11104872A (en) * | 1997-09-29 | 1999-04-20 | Amada Co Ltd | Work profiling method in laser beam machine, its device and laser machining head |
| DE102007008065A1 (en) * | 2007-02-15 | 2008-08-21 | Valeo Klimasysteme Gmbh | Blower vibration determining method for vehicle blower test station, involves fastening blower to retaining part that is buoyantly supported in different directions, and turning on blower at set of operating points |
| CN201130015Y (en) * | 2007-12-26 | 2008-10-08 | 上海西屋开关有限公司 | Vacuum circuit breaker contact wearing capacity detecting device |
| CN105021132A (en) * | 2015-07-15 | 2015-11-04 | 国家电网公司 | Laser non-contact type centrally-installed cabinet handcart contact stroke tester |
| KR101664326B1 (en) * | 2015-11-18 | 2016-10-24 | 주식회사 한국이알이시 | Sswitchgear having diagnosing deterioration using deterioration detection sensor |
| CN108663181A (en) * | 2018-06-29 | 2018-10-16 | 国网江苏省电力有限公司电力科学研究院 | A kind of Vibration Modal Test system and method for open isolating switch |
| CN112539930A (en) * | 2020-12-07 | 2021-03-23 | 中国长江电力股份有限公司 | GIS/GCB circuit breaker three-phase opening and closing state monitoring device and using method |
| CN114465109A (en) * | 2022-02-18 | 2022-05-10 | 杨道华 | Intelligent switch cabinet based on autonomous detection and control method thereof |
| CN218769137U (en) * | 2023-02-28 | 2023-03-28 | 珠海盈源电气有限公司 | High-voltage rotary isolating switch |
Non-Patent Citations (1)
| Title |
|---|
| 吕大青 ; 徐晓泉 ; 程果 ; .基于激光内窥成像的手车开关柜安装调试辅助系统研发.电力与能源.2019,(06),全文. * |
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