CN115096578B - High-voltage switch mechanical characteristic comprehensive test device - Google Patents
High-voltage switch mechanical characteristic comprehensive test device Download PDFInfo
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- G—PHYSICS
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- 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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- G—PHYSICS
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- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- G—PHYSICS
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- 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
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Abstract
The invention discloses a high-voltage switch mechanical characteristic comprehensive testing device, which utilizes a square laser sensing plate or a rectangular laser sensing plate to identify the real-time position of a red thin laser beam emitted by a laser emitter so as to draw a high-voltage switch stroke-time curve and realize wireless measurement of the action speed of a high-voltage switch; according to the difference of the pointing positions, the laser transmitter can respectively provide two laser paths of arc rotation and linear displacement on the square laser sensing plate and the rectangular laser sensing plate, so that the device has two modes of arc rotation measurement and linear displacement measurement, and can adopt another measurement mode when the field condition is not suitable for a certain measurement mode. The high-voltage switch speed measuring device realizes wireless measurement of the high-voltage switch speed by utilizing the laser position change, can complete high-voltage switch time test, has the advantages of high safety, good adaptability, strong practicability, simple structure, convenient operation and the like, and can effectively improve the working efficiency of the high-voltage switch mechanical characteristic test.
Description
Technical Field
The invention belongs to the technical field of high-voltage switch testing, and particularly relates to a comprehensive testing device for mechanical characteristics of a high-voltage switch.
Background
The high-voltage switch is widely applied to a power system, is used for cutting off and connecting load current, can be matched with a relay protection device, quickly removes faults, and ensures safe and stable operation of the power system. Therefore, before the high-voltage switch is put into use or in power failure maintenance, the mechanical characteristics of the high-voltage switch need to be electrically tested to ensure that the high-voltage switch meets normal working conditions. The time and speed testing of the high-voltage switch is an important content in the mechanical characteristic testing, the traditional mode usually adopts measurement methods such as a linear resistance sensor and an angular displacement resistance sensor, and needs to be matched with a corresponding mounting bracket, a moving part of a speed measuring sensor is mounted on a lifting rod or a horizontal connecting rod of a switch, a static part of the speed measuring sensor is fixed on a base of the switch, and the speed measuring sensor is in wired connection with a tester, so that the defects of complex structure, time and labor consuming in mounting and dismounting, low working efficiency and the like exist.
The patent with the publication number of CN211180113U discloses a characteristic tester for a high-voltage vacuum switch, which comprises a tester body, a magnetic base, a support, a linear resistance sensor, an angle motor, an adsorption magnetic block, a fixed line plate and a signal line, wherein the linear resistance sensor is required to be arranged below the high-voltage vacuum switch, and the linear resistance sensor is connected with a contact at the bottom of the high-voltage vacuum switch by virtue of the adsorption magnetic block, so that the testing of the action distance of the high-voltage switch is realized. However, in the testing process of the invention, the structure of the high-voltage switch needs to be disassembled to realize the installation of the testing device and the testing of the distance, so the testing can be carried out only before the high-voltage switch is assembled, or the high-voltage switch structure in application is disassembled to carry out the testing, thus the whole structure of the high-voltage switch is seriously influenced, the practicability is not strong, time and labor are wasted, and potential safety hazards are easily left. The patent with publication number CN112129967a discloses a laser speed measuring device for testing the rigid-dividing speed and the rigid-combining speed of a high-voltage switch, which comprises a reflector, a semiconductor laser, a lens, a photoelectric conversion sensing matrix, a signal amplification module, a signal processing module and a device power supply, and calculates the high-voltage switching speed by identifying the position change of a light reflecting area of laser on the photoelectric conversion sensing matrix by adopting a non-contact measurement method. The invention innovatively adopts laser to test the speed of the high-voltage switch, but because a reflector needs to be attached to a lifting rod of the high-voltage switch to be tested for measurement, the high-voltage switch structure in application needs to be removed for testing, and the problems also exist. Meanwhile, the invention has the problems of more complex structure, smaller application range, poorer practicability and the like, and the technical problems cannot be effectively solved.
Disclosure of Invention
The invention provides a comprehensive testing device for mechanical characteristics of a high-voltage switch, aiming at the problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high tension switchgear mechanical property integrated test device, includes the strong magnetism fixing base of transmission shaft, the strong magnetism fixing base of transmission shaft is through self magnetic attraction in one side of high tension switchgear transmission main shaft the opposite side of the strong magnetism fixing base of transmission shaft is connected with the laser emission box through horizontal connecting rod be provided with laser emitter in the laser emission box and be used for the lithium cell for the laser emitter power supply, laser emitter eccentric mounting for outside continuous emission red thin laser beam laser emitter's just opposite is provided with square laser tablet, square laser tablet passes through the communication line and is connected with a signal conditioning module, a signal conditioning module is connected with a position identification chip, a position identification chip is connected with signal processing system.
Furthermore, the strong magnetic fixing seat of transmission shaft with one side that the horizontal connecting rod is connected and the laser emission box with one side that the horizontal connecting rod is connected all fixedly are provided with fastening nut, the both ends of horizontal connecting rod respectively with two fastening nut threaded connection.
And a groove is formed in one side of the transmission shaft strong magnetic fixing seat connected with the high-voltage switch transmission main shaft, and a clamping block clamped with a spline on the side surface of the high-voltage switch transmission main shaft is arranged in the groove, so that the transmission shaft strong magnetic fixing seat is tightly connected with the high-voltage switch transmission main shaft.
Still further, the cover is equipped with antifriction bearing on the horizontal connecting rod, can not influence horizontal connecting rod pivoted while realize right horizontal connecting rod's stable stay antifriction bearing's sub-unit connection has a branch No. one the other end of a branch articulates through the locking bolt has No. two branches, the other end and the strong magnetism supporting seat of No. two branches are connected, strong magnetism supporting seat is through self magnetic force and high-pressure switch casing actuation.
Further, the opening has been seted up to the side of laser emission box, laser emitter rotates to set up inside the opening, and turned angle can reach 90, realizes the two kinds of different modes of testing the speed of arc rotation measurement and linear displacement measurement, works as laser emitter rotates 90 back, just right laser emitter is provided with rectangle laser induction board, rectangle laser induction board passes through the communication line and is connected with No. two signal conditioning modules, no. two signal conditioning modules are connected with No. two position identification chips, no. two position identification chips with signal processing system connects.
Furthermore, square laser tablet with rectangle laser tablet all comprises align to grid's photosensitive element, works as when laser that laser emitter transmitted shines on the photosensitive element, corresponding photosensitive element output high level signal extremely No. one signal conditioning module or No. two signal conditioning modules, no. one signal conditioning module or No. two signal conditioning modules are used for enlargeing, putting in order the level signal of different positions photosensitive element output, and transmit to No. one position identification chip or No. two position identification chips, no. one position identification chip or No. two position identification chips are used for realizing the level signal discernment to different positions photosensitive element to reach on will corresponding red thin laser beam position through the communication line signal processing system, realize the accurate discernment to the red thin laser beam position of arc rotary mode or straight line displacement mode.
Furthermore, square laser induction board with rectangle laser induction board all installs in the backup pad that corresponds, the backup pad is installed on the horizontal fixing base that corresponds, horizontal fixing base places subaerial.
Furthermore, the signal processing system comprises a serial communication module, a trigger direct current adjusting knob, a display control module, a storage module, a CPU module, a rectification module, a fracture pressure application controller, a switching-on/off power transmission controller, an energy storage power transmission controller, an electric quantity transmitter, an A/D conversion module, an energy storage control interface, a trigger interface, a fracture interface, an instrument grounding port, an energy storage lead bundle, a trigger lead bundle and a fracture lead bundle; the serial communication module is connected among the first position identification chip, the second position identification chip and the CPU module and is used for realizing serial communication among the first position identification chip, the second position identification chip and the CPU module; the trigger direct current adjusting knob is connected with the CPU module and used for changing the action voltage of the trigger direct current in a manual mode in the mechanical characteristic testing process to realize the effective triggering of the on/off of the high-voltage switch; the display control module adopts a capacitive touch screen, is connected with the CPU module and is used for inputting initial setting data, controlling a mechanical characteristic test process and displaying a test process and result data; the storage module is connected with the CPU module and is used for storing relevant initial settings and test data in the mechanical characteristic test process; the CPU module analyzes and calculates the time and speed characteristics of the high-voltage switch through the received initial setting data, fracture action signals, electric quantity signals and laser beam positions; the rectification module is respectively connected with the CPU module, the fracture pressure application controller, the switching-on/off power transmission controller and the energy storage power transmission controller, and is used for realizing AC → DC conversion of a power supply and converting a 220V alternating-current working power supply into different direct-current working power supplies; the fracture pressure application controller is connected with the CPU module and used for receiving an adjusting control instruction of the CPU module and applying working voltage to a A, B, C three-phase fracture of a high-voltage switch through the fracture interface; the switching-on/off power transmission controller is connected with the CPU module and used for receiving the adjusting control instruction of the CPU module and providing switching-on/off trigger direct current to corresponding switching-on/off control terminals in a secondary wiring row of the high-voltage switch through the trigger interface; the energy storage power transmission controller is connected with the CPU module and used for receiving the adjusting control instruction of the CPU module and providing energy storage triggering direct current for corresponding energy storage control terminals in the secondary wiring bank through the energy storage control interface; the electric quantity transmitter is respectively connected with the fracture pressure application controller, the opening and closing power transmission controller and the energy storage power transmission controller and is used for detecting voltage and current values output by the fracture pressure application controller, the opening and closing power transmission controller and the energy storage power transmission controller in real time; the A/D conversion module is connected between the electric quantity transmitter and the CPU module and is used for converting the electric analog quantity acquired by the electric quantity transmitter in real time into an electric digital quantity, uploading the electric digital quantity to the CPU module and further displaying the electric digital quantity in real time through the display control module; the energy storage control interface, the trigger interface and the fracture interface are respectively connected with the corresponding energy storage power transmission controller, the corresponding opening and closing power transmission controller and the corresponding fracture pressure application controller through the electric quantity transmitter, and the energy storage control interface, the trigger interface and the fracture interface respectively adopt a two-core navigation plug, a three-core navigation plug and a four-core navigation plug to realize the output of corresponding direct current working electricity; one end of the energy storage lead bundle is connected with the energy storage control interface through a two-core aerial plug wire, and the other end of the energy storage lead bundle is connected with a corresponding energy storage control terminal in the secondary wiring row through a lead clamp; one end of the trigger wire bundle is connected with the trigger interface through a three-core aerial plug wire, and the other end of the trigger wire bundle is connected with a corresponding opening and closing control terminal in the secondary wiring row through a wire clamp; one end of the fracture wire bundle is connected with the fracture interface through a four-core aerial plug wire, and the other end of the fracture wire bundle is connected with the movable contact and the fixed contact of the three-phase fracture of the high-voltage switch A, B, C through a wire clamp; the instrument grounding port is used for realizing safe and reliable grounding of the signal processing system in the operation process.
Compared with the prior art, the invention has the following advantages:
according to the invention, the laser emission box is directly adsorbed on the side surface of the high-voltage switch transmission main shaft by utilizing the transmission shaft strong-magnetic fixing seat, and is supported by the rolling bearing, the first support rod, the second support rod and the horizontal connecting rod, the transmission main shaft rotates when the high-voltage switch contact acts, the laser emitter keeps consistent rotation along with the high-voltage switch transmission main shaft, and the position of a red fine laser beam emitted by the laser emitter on the laser induction plate changes correspondingly; according to different pointing positions of the laser transmitters, the laser transmitters can respectively provide two laser paths of arc rotation and linear displacement on the square laser sensing plate and the rectangular laser sensing plate, so that the device has two modes of arc rotation measurement and linear displacement measurement, can adopt another measurement mode when the field condition is not suitable for the measurement mode, and can better adapt to complex and diversified field test environments; meanwhile, the energy storage lead bundle, the trigger lead bundle and the fracture lead bundle are respectively connected with the energy storage control interface, the trigger interface, the fracture interface and a secondary wiring bar of the high-voltage switch and a A, B, C three-phase fracture, so that the control connection of the signal processing system and the high-voltage switch is realized; the signal processing system gives out working direct current required by the high-voltage switch through the fracture pressure application controller, the opening and closing power transmission controller and the energy storage power transmission controller, and analyzes and calculates mechanical characteristics such as time and speed of the high-voltage switch according to data such as initial setting data, fracture action signals, electric quantity signals and laser beam positions.
The high-voltage switch speed wireless measurement device realizes wireless measurement of high-voltage switch speed by utilizing laser position change, can complete high-voltage switch time test, has the advantages of high safety, strong adaptability, simple structure, convenience in operation, strong practicability and the like, and can effectively improve the working efficiency of high-voltage switch mechanical characteristic test.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of circle A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the connection between the laser emitting box and the laser emitter according to the present invention;
FIG. 4 is a schematic view of the structure of the transmission shaft strong magnetic fixing seat of the present invention;
FIG. 5 is a schematic diagram of a signal processing system according to the present invention;
in the figure, a transmission shaft strong magnetic fixing seat-1, a high-voltage switch transmission main shaft-2, a horizontal connecting rod-3, a laser emission box-4, a laser emitter-5, a lithium battery-6, a square laser induction plate-7, a first signal conditioning module-8, a signal processing system-9, a first position identification chip-10, a fastening nut-11, a clamping block-12, a rolling bearing-13, a first support rod-14, a locking bolt-15, a second support rod-16, a strong magnetic support seat-17, a high-voltage switch shell-18, a notch-19, a rectangular laser induction plate-20, a second signal conditioning module-21, a second position identification chip-22, a support plate-23, a horizontal fixing seat-24, a second wiring row-25, a serial communication module-901, a trigger direct current display adjusting knob-902, a storage module 904-a lead module-905, a rectification lead module-906, a pressure applying fracture controller-907, a separating and closing power transmission controller-908, an energy storage power transmission controller-909, an electric quantity-910, an electric quantity-D conversion module-916, a triggering beam-triggering interface-914, a triggering beam-triggering interface, a triggering beam-918-triggering instrument interface, a triggering beam-912 and a triggering beam-controlling interface.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
As shown in fig. 1 to 5, a device for comprehensively testing mechanical characteristics of a high-voltage switch comprises a transmission shaft strong magnetic fixing seat 1, wherein the transmission shaft strong magnetic fixing seat 1 is attracted to one side of a high-voltage switch transmission main shaft 2 through self magnetic force, meanwhile, a groove is arranged on one side of the transmission shaft strong magnetic fixing seat 1 connected with the high-voltage switch transmission main shaft 2, and a fixture block 12 clamped with a spline on the side surface of the high-voltage switch transmission main shaft 2 is arranged in the groove so as to realize tight connection between the transmission shaft strong magnetic fixing seat 1 and the high-voltage switch transmission main shaft 2; the other side of the transmission shaft strong magnetic fixing seat 1 is connected with a laser emission box 4 through a horizontal connecting rod 3; fastening nuts 11 are fixedly arranged on one side of the transmission shaft strong-magnetic fixing seat 1 connected with the horizontal connecting rod 3 and one side of the laser emission box 4 connected with the horizontal connecting rod 3, and two ends of the horizontal connecting rod 3 are respectively in threaded connection with the two fastening nuts 11; the horizontal connecting rod 3 is sleeved with a rolling bearing 13, so that the horizontal connecting rod 3 can be stably supported while the rotation of the horizontal connecting rod 3 is not influenced, the lower part of the rolling bearing 13 is connected with a first supporting rod 14, the other end of the first supporting rod 14 is hinged with a second supporting rod 16 through a locking bolt 15, the other end of the second supporting rod 16 is connected with a strong magnetic supporting seat 17, and the strong magnetic supporting seat 17 is attracted with a high-voltage switch shell 18 through self magnetic force; a laser emitter 5 and a lithium battery 6 for supplying power to the laser emitter 5 are arranged in the laser emitting box 4, and the laser emitter 5 is eccentrically arranged and used for continuously emitting red thin laser beams outwards; a notch 19 is formed in the side surface of the laser emitting box 4, the laser emitter 5 is rotatably arranged in the notch 19, the rotation angle can reach 90 degrees, and two different speed measuring modes of arc rotation measurement and linear displacement measurement are realized; a square laser induction plate 7 is arranged right opposite to the laser transmitter 5, the square laser induction plate 7 is connected with a first signal conditioning module 8 through a communication line, the first signal conditioning module 8 is connected with a first position identification chip 10, and the first position identification chip 10 is connected with a signal processing system 9; after the laser transmitter 5 rotates 90 degrees, a rectangular laser induction plate 20 is arranged right opposite to the laser transmitter 5, the rectangular laser induction plate 20 is connected with a second signal conditioning module 21 through a communication line, the second signal conditioning module 21 is connected with a second position identification chip 22, and the second position identification chip 22 is connected with a signal processing system 9; the square laser sensing plate 7 and the rectangular laser sensing plate 20 are composed of photosensitive elements which are uniformly arranged, when laser emitted by the laser emitter 5 irradiates on the photosensitive elements, the corresponding photosensitive elements output high level signals to the first signal conditioning module 8 or the second signal conditioning module 21, the first signal conditioning module 8 or the second signal conditioning module 21 is used for amplifying and sorting level signals output by the photosensitive elements at different positions and transmitting the level signals to the first position identification chip 10 or the second position identification chip 22, the first position identification chip 10 or the second position identification chip 22 is used for realizing level signal identification of the photosensitive elements at different positions, and the corresponding red fine laser beam position is transmitted to the signal processing system 9 through a communication line, so that accurate identification of the red fine laser beam position in an arc-shaped rotating mode or a linear displacement mode is realized; square laser induction board 7 and rectangle laser induction board 20 are all installed on the backup pad 23 that corresponds, and backup pad 23 is installed on the horizontal fixing base 24 that corresponds, and horizontal fixing base 24 places subaerial.
The signal processing system 9 comprises a serial communication module 901, a trigger direct current adjusting knob 902, a display control module 903, a storage module 904, a CPU module 905, a rectification module 906, a fracture pressure controller 907, a switching on/off power transmission controller 908, an energy storage power transmission controller 909, an electric quantity transmitter 910, an a/D conversion module 911, an energy storage control interface 912, a trigger interface 913, a fracture interface 914, an instrument ground port 915, an energy storage wire bundle 916, a trigger wire bundle 917 and a fracture wire bundle 918, can provide working direct current required by the high-voltage switch, and can analyze and calculate mechanical characteristics such as time, speed and the like of the high-voltage switch according to data such as initial setting data, fracture action signals, electric quantity signals and laser beam positions; the serial communication module 901 is connected between the first position identification chip 10, the second position identification chip 22 and the CPU module 905, and is used for implementing serial communication between the first position identification chip 10, the second position identification chip 22 and the CPU module 905; the trigger direct current adjusting knob 902 is connected with the CPU module 905 and used for changing the action voltage of the trigger direct current in a manual mode in the mechanical characteristic testing process to realize the effective triggering of the on/off of the high-voltage switch; the display control module 903 adopts a capacitive touch screen, is connected with the CPU module 905, and is used to input initial setting data, control a mechanical characteristic test process, and display a test process and result data; the storage module 904 is connected with the CPU module 905 and is used to store the relevant initial settings and test data during the mechanical property test; the CPU module 905 analyzes and calculates the time and speed characteristics of the high-voltage switch through the received initial setting data, fracture action signals, electric quantity signals and laser beam positions, and the principle is that the action time is measured according to the voltage sudden change conditions at two ends of the fracture of the high-voltage switch, and the action speed is measured by drawing a high-voltage switch stroke-time curve according to the real-time position of the laser beam; the rectifying module 906 is respectively connected with the CPU module 905, the fracture pressure applying controller 907, the opening and closing power transmission controller 908 and the energy storage power transmission controller 909, and is used for realizing AC → DC conversion of a power supply and converting a 220V alternating current working power supply into different direct current working power supplies; the fracture pressure application controller 907 is connected with the CPU module 905, and is used for receiving the adjustment control instruction of the CPU module 905 and applying working voltage to the A, B, C three-phase fracture of the high-voltage switch through the fracture interface 914; the switching-on/off power transmission controller 908 is connected with the CPU module 905, and is configured to receive an adjustment control instruction of the CPU module 905 and provide switching-on/off trigger direct current to a corresponding switching-on/off control terminal in the secondary wiring bank 25 in the high-voltage switch through the trigger interface 913; the energy storage power transmission controller 909 is connected with the CPU module 905, and is configured to receive an adjustment control instruction of the CPU module 905 and provide energy storage trigger direct current to a corresponding energy storage control terminal in the secondary wiring bank 25 through the energy storage control interface 912; the electric quantity transmitter 910 is respectively connected with the fracture pressure application controller 907, the opening and closing power transmission controller 908 and the energy storage power transmission controller 909, and is used for detecting voltage and current values output by the fracture pressure application controller 907, the opening and closing power transmission controller 908 and the energy storage power transmission controller 909 in real time; the a/D conversion module 911 is connected between the electric quantity transmitter 910 and the CPU module 905, and is configured to convert the electric analog quantity acquired by the electric quantity transmitter 910 in real time into an electric digital quantity, and upload the electric digital quantity to the CPU module 905, so as to display the electric digital quantity in real time through the display control module 903; the energy storage control interface 912, the trigger interface 913 and the fracture interface 914 are respectively connected with the corresponding energy storage power transmission controller 909, the opening and closing power transmission controller 908 and the fracture pressure application controller 907 through an electric quantity transmitter 910, and the energy storage control interface 912, the trigger interface 913 and the fracture interface 914 respectively adopt a two-core aviation plug, a three-core aviation plug and a four-core aviation plug to realize the output of corresponding direct current working electricity; one end of the energy storage wire bundle 916 is connected with the energy storage control interface 912 through a two-core aerial plug wire, and the other end is connected with a corresponding energy storage control terminal in the secondary wiring row 25 through a wire clamp; one end of the trigger wire bundle 917 is connected to the trigger interface 913 through a three-core aerial patch cord, and the other end is connected to a corresponding opening and closing control terminal in the secondary wiring row 25 through a wire clamp; one end of the fracture wire bundle 918 is connected with the fracture interface 914 through a four-core aerial plug wire, and the other end of the fracture wire bundle is connected with the moving contact and the static contact of the three-phase fracture of the high-voltage switch A, B, C through a wire clamp; the instrument ground port 915 is used to achieve safe and reliable grounding of the signal processing system 9 during operation.
The application object of the invention is a high-voltage switch, the high-voltage switch is composed of A, B, C three-phase fracture, a secondary wiring row 25, a high-voltage switch transmission main shaft 2 and other components, when A, B, C three-phase fracture is switched on/off, a moving contact moves correspondingly, so that the high-voltage switch transmission main shaft 2 is driven to rotate correspondingly, and the rotation angle of the high-voltage switch transmission main shaft 2 is 40-50 degrees. Therefore, the mechanical characteristics such as the action time, the opening/closing speed and the like of the high-voltage switch contact can be analyzed and obtained by identifying the rotation condition of the high-voltage switch transmission main shaft 2.
When the high-voltage switch is installed, the energy of the high-voltage switch operating mechanism is completely released, the high-voltage switch is in a brake-off state, a control power supply and an energy storage power supply in the high-voltage switch are disconnected, and the signal processing system 9 and the horizontal fixing seat 24 are effectively grounded by utilizing the grounding wire. The energy storage wire bundle 916, the trigger wire bundle 917 and the fracture wire bundle 918 are correctly installed to complete the control connection of the signal processing system 9 and the high-voltage switch; then, the transmission shaft strong magnetic fixing seat 1 is tightly attracted to a spline on the side surface of the high-voltage switch transmission main shaft 2; the fastening nut 11 is used for realizing the stable connection of the transmission shaft strong-magnetic fixing seat 1, the laser emission box 4 and the horizontal connecting rod 3; tightly attracting a strong magnetic support seat 17 to a proper position of a high-voltage switch shell 18, and screwing a locking bolt 15 to fix a first support rod 14 and a second support rod 16; then, an arc rotation measurement mode or a linear displacement measurement mode is reasonably selected according to actual conditions on site, so that the square laser sensing plate 7 or the rectangular laser sensing plate 20 is installed to a reasonable position, the connection with the serial communication module 901 in the signal processing system 9 is realized through a communication line, and the arrangement of a laser sensing part is completed.
When an arc rotation measurement mode is adopted, a 220V alternating current power supply is provided for the signal processing system 9 by using an on-site power supply box, the CPU module 905 is started and controlled through the display control module 903, initial data setting is carried out, the fracture pressure application controller 907, the opening and closing power transmission controller 908 and the energy storage power transmission controller 909 are driven to provide working direct current required by the high-voltage switch, specifically, energy storage triggering direct current is provided through the energy storage power transmission controller 909, the energy storage process of the high-voltage switch is started, and energy storage of the high-voltage switch is completed; applying proper working voltage to a A, B, C three-phase fracture of a high-voltage switch through a fracture pressure application controller 907, keeping the working voltage at two ends of the fracture when the high-voltage switch is switched off, and abruptly changing the voltage at the two ends of the fracture into zero when the high-voltage switch is switched on; and then, a trigger direct current adjusting knob is used for changing the trigger direct current action voltage given by the switching-on and switching-off power transmission controller 908 to about 220V, so that the effective trigger of the high-voltage switch in the switching-on process is realized.
In the aspect of time testing, when the high-voltage switch completes switching on, the signal processing system 9 completes the switching on time testing of the high-voltage switch by monitoring the process duration from the moment of generating the trigger signal to the moment of voltage mutation at two ends of the fracture, and can calculate the interphase different-phase difference value of A, B, C three phases when the high-voltage switch is switched on; in the aspect of speed testing, when the high-voltage switch completes switching on, the high-voltage switch transmission main shaft 2 rotates, the laser transmitter 5 keeps consistent rotation along with the rotation, the red thin laser beam generates a corresponding arc-shaped rotation curve on the square laser induction plate, the signal processing system 9 draws a stroke-time curve through identification of the arc-shaped rotation curve, and the average speed, the maximum speed, the just-closing speed and the like of the switching on of the high-voltage switch are calculated, so that the mechanical characteristic test of the switching on process of the high-voltage switch is completed.
Then, similar to the closing process, when the opening process test is carried out, the signal processing system 9 drives the high-voltage switch to complete energy storage and opening, and the opening time of the high-voltage switch and the interphase different phase difference value of the A, B, C three phases during opening are obtained through analysis and calculation by combining the trigger signal and the fracture voltage mutation condition; and (3) drawing a stroke-time curve through the identification of the arc-shaped rotating curve, calculating to obtain the average speed, the maximum speed, the rigid opening speed and the like of the high-voltage switch opening, and further completing the mechanical characteristic test of the high-voltage switch opening process.
When a linear displacement measurement mode is adopted, the process is approximately the same as that of the measurement mode, the principle in the aspect of time measurement is the same, the difference is that in the aspect of speed measurement, a red thin laser beam generates corresponding linear displacement on a rectangular laser induction plate, a stroke-time curve can be drawn by the signal processing system 9 through the identification of the linear displacement, the average speed, the maximum speed, the just opening/closing speed and the like of the opening/closing of the high-voltage switch are obtained through calculation, and the mechanical characteristic test of the opening/closing process of the high-voltage switch is completed.
The laser measurement mode adopted by the invention has two modes of arc-shaped rotation measurement and linear displacement measurement, and the other measurement mode can be adopted when the field condition is not suitable for a certain measurement mode, so that the laser measurement method can better adapt to complicated and diversified field test environments; the high-voltage switch speed wireless measurement device realizes wireless measurement of the high-voltage switch speed by utilizing laser position change, can complete high-voltage switch time test, has the advantages of high safety, strong adaptability, simple structure, convenience in operation, strong practicability and the like, and can effectively improve the working efficiency of the high-voltage switch mechanical characteristic test.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of being embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a high-voltage switch mechanical properties integrated test device which characterized in that: including the strong magnetism fixing base of transmission shaft (1), the strong magnetism fixing base of transmission shaft (1) is connected with laser emission box (4) through self magnetic attraction in one side of high-voltage switch transmission main shaft (2) the opposite side of the strong magnetism fixing base of transmission shaft (1) passes through horizontal connecting rod (3) be provided with laser emitter (5) in laser emission box (4) and be used for lithium cell (6) for laser emitter (5) power supply, laser emitter (5) eccentric mounting for outside continuous emission red thin laser beam opening (19) have been seted up to the side of laser emission box (4), laser emitter (5) rotate to set up opening (19) are inside, and turned angle can reach 90, realize that arc rotation measures and sharp displacement measure two kinds of different modes of testing speed laser emitter (5) are provided with square laser tablet (7) just to the face to face, square laser tablet (7) are connected with a rectangle signal conditioning module (8) through the communication line, a signal conditioning module (8) and a position discernment chip (10) are connected, a discernment chip (10) and a discernment signal processing system (20) are just connected with laser emitter (20) after laser emitter (5), laser emitter (5) are connected through the communication line ) The second signal conditioning module (21) is connected with a second position identification chip (22), and the second position identification chip (22) is connected with the signal processing system (9);
square laser tablet (7) and rectangle laser tablet (20) constitute by align arrangement's photosensitive element, work as laser that laser emitter (5) transmitted when shining on the photosensitive element, corresponding photosensitive element output high level signal extremely a signal conditioning module (8) or No. two signal conditioning module (21), a signal conditioning module (8) or No. two signal conditioning module (21) are used for enlargiing, arrange the level signal of different positions photosensitive element output, and transmit to a position identification chip (10) or No. two position identification chip (22), a position identification chip (10) or No. two position identification chip (22) are used for realizing the level signal discernment to different positions photosensitive element to reach red thin laser beam position that corresponds is uploaded through the communication line to signal processing system (9), realize the accurate discernment to the red thin laser beam position of arc rotary mode or straight line displacement mode.
2. The device for comprehensively testing the mechanical characteristics of the high-voltage switch according to claim 1, characterized in that: the transmission shaft strong magnetic fixing seat (1) is connected with one side of the horizontal connecting rod (3) and one side of the laser emission box (4) connected with the horizontal connecting rod (3) are fixedly provided with fastening nuts (11), and two ends of the horizontal connecting rod (3) are respectively in threaded connection with the fastening nuts (11).
3. The device for comprehensively testing the mechanical characteristics of the high-voltage switch according to claim 1, characterized in that: the high-voltage switch transmission device is characterized in that a groove is formed in one side, connected with the high-voltage switch transmission main shaft (2), of the transmission shaft strong-magnetic fixing seat (1), a fixture block (12) clamped with a spline on the side face of the high-voltage switch transmission main shaft (2) is arranged in the groove, and therefore the transmission shaft strong-magnetic fixing seat (1) is tightly connected with the high-voltage switch transmission main shaft (2).
4. The device for comprehensively testing the mechanical characteristics of the high-voltage switch according to claim 1, characterized in that: horizontal connecting rod (3) are gone up the cover and are equipped with antifriction bearing (13), can not influence horizontal connecting rod (3) pivoted while realize right the stable stay of horizontal connecting rod (3) the sub-unit connection of antifriction bearing (13) has branch (14) the other end of branch (14) articulates through locking bolt (15) has No. two branch (16), the other end and the strong magnetism supporting seat (17) of No. two branch (16) are connected, strong magnetism supporting seat (17) are through self magnetic force and high-voltage switch casing (18) actuation.
5. The device for comprehensively testing the mechanical characteristics of the high-voltage switch according to claim 1, characterized in that: square laser tablet (7) with rectangle laser tablet (20) are all installed on backup pad (23) that corresponds, install on horizontal fixing base (24) that correspond backup pad (23), horizontal fixing base (24) are placed subaerial.
6. The device for comprehensively testing the mechanical characteristics of the high-voltage switch according to claim 1, characterized in that: the signal processing system (9) comprises a serial communication module (901), a trigger direct current adjusting knob (902), a display control module (903), a storage module (904), a CPU module (905), a rectifying module (906), a fracture pressure applying controller (907), a switching-closing power transmission controller (908), an energy storage power transmission controller (909), an electric quantity transmitter (910), an A/D conversion module (911), an energy storage control interface (912), a trigger interface (913), a fracture interface (914), an instrument grounding port (915), an energy storage lead bundle (916), a trigger lead bundle (917) and a fracture lead bundle (918); the serial communication module (901) is connected among the first position identification chip (10), the second position identification chip (22) and the CPU module (905) and is used for realizing serial communication among the first position identification chip (10), the second position identification chip (22) and the CPU module (905); the trigger direct current adjusting knob (902) is connected with the CPU module (905) and is used for changing the action voltage of trigger direct current in a manual mode in the mechanical characteristic testing process to realize the effective trigger of the opening/closing of the high-voltage switch; the display control module (903) is connected with the CPU module (905) by adopting a capacitive touch screen and is used for inputting initial setting data, controlling a mechanical characteristic test process and displaying a test process and result data; the storage module (904) is connected with the CPU module (905) and is used for storing relevant initial setting and test data in the mechanical characteristic test process; the CPU module (905) analyzes and calculates the time and speed characteristics of the high-voltage switch through the received initial setting data, fracture action signals, electric quantity signals and laser beam positions; the rectifying module (906) is respectively connected with the CPU module (905), the fracture pressure applying controller (907), the switching-on/off power transmission controller (908) and the energy storage power transmission controller (909) and is used for realizing AC → DC conversion of a power supply and converting a 220V alternating-current working power supply into different direct-current working power supplies; the fracture pressure application controller (907) is connected with the CPU module (905) and is used for receiving an adjusting control instruction of the CPU module (905) and applying working voltage to a A, B, C three-phase fracture of a high-voltage switch through the fracture interface (914); the switching-on/off power transmission controller (908) is connected with the CPU module (905) and is used for receiving an adjusting control instruction of the CPU module (905) and providing switching-on/off trigger direct current to a corresponding switching-on/off control terminal in a secondary wiring bank (25) of the high-voltage switch through the trigger interface (913); the energy storage power transmission controller (909) is connected with the CPU module (905) and is used for receiving an adjusting control instruction of the CPU module (905) and providing energy storage triggering direct current for a corresponding energy storage control terminal in the secondary wiring bank (25) through the energy storage control interface (912); the electric quantity transmitter (910) is respectively connected with the fracture pressure application controller (907), the switching-on/off power transmission controller (908) and the energy storage power transmission controller (909) and is used for detecting voltage and current values output by the fracture pressure application controller (907), the switching-on/off power transmission controller (908) and the energy storage power transmission controller (909) in real time; the A/D conversion module (911) is connected between the electric quantity transmitter (910) and the CPU module (905) and is used for converting the electric analog quantity acquired by the electric quantity transmitter (910) in real time into an electric digital quantity, uploading the electric digital quantity to the CPU module (905) and further displaying the electric digital quantity in real time through the display control module (903); the energy storage control interface (912), the trigger interface (913) and the fracture interface (914) are respectively connected with the corresponding energy storage power transmission controller (909), the switching-on/off power transmission controller (908) and the fracture pressure application controller (907) through the electric quantity transmitter (910), and the energy storage control interface (912), the trigger interface (913) and the fracture interface (914) respectively adopt a two-core aerial plug, a three-core aerial plug and a four-core aerial plug to realize the output of corresponding direct current working electricity; one end of the energy storage lead bundle (916) is connected with the energy storage control interface (912) through a two-core aerial plug wire, and the other end of the energy storage lead bundle is connected with a corresponding energy storage control terminal in the secondary wiring bar (25) through a lead clamp; one end of the trigger wire bundle (917) is connected with the trigger interface (913) through a three-core aerial plug wire, and the other end of the trigger wire bundle is connected with a corresponding opening and closing control terminal in the secondary wiring row (25) through a wire clamp; one end of the fracture lead bundle (918) is connected with the fracture interface (914) through a four-core aerial patch cord, and the other end of the fracture lead bundle is connected with the movable contact and the fixed contact of the three-phase fracture of the high-voltage switch A, B, C through lead clamps; the instrument grounding port (915) is used for realizing safe and reliable grounding of the signal processing system (9) in the operation process.
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