10Kv-110Kv three-signal frequency withstand voltage test device

Abstract

The invention discloses a 10Kv-110Kv three-signal-frequency withstand voltage test device, and relates to the technical field of electrical test equipment, the 10Kv-110Kv three-signal-frequency withstand voltage test device comprises a wiring protection shell, an external base station is fixedly mounted on the front surface of the wiring protection shell, an intelligent auxiliary mechanism is arranged on one side of the outer wall of the wiring protection shell, the intelligent auxiliary mechanism comprises a first rectangular groove, and a second rectangular groove is formed in the first rectangular groove. A first rectangular groove is formed in the base, a first PCB is fixedly connected to the interior of the first rectangular groove, a set of contact bases are fixedly connected to the outer surface wall of the first PCB, an import module, an analysis module, a timing module and an instruction transmission module are arranged in the set of contact bases correspondingly, and the mechanism adopts an operation mode that mechanical transmission and information collection are matched; the steps of data writing, component driving, voltage changing, timing control and the like are autonomously completed, manual participation items in the whole equipment test process are reduced, direct contact between a human body and related equipment components is avoided, the probability of manual electric shock caused by aging of insulation components is effectively reduced, and the use safety of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electrical test equipment, in particular to a 10Kv-110Kv three-frequency withstand voltage test device. Background Art

[0002] The power frequency withstand voltage test device is an advanced intelligent withstand voltage test equipment designed according to the latest national power industry standards. It is safe, reliable, powerful, easy to use and simple to maintain. It is used to conduct insulation strength tests on various electrical products, electrical components, insulating materials, etc. under specified voltages to assess the insulation level of the product, discover insulation defects in the test product, and measure the overvoltage capability.

[0003] However, the existing pressure test device has the following shortcomings: When the equipment is working, it is necessary to adjust different voltage values ​​in sequence. The target reagent detects the performance of the object under different voltage intensities. The voltage regulators equipped in traditional equipment all use multiple mechanical components to cooperate and use manual adjustment to increase and decrease the voltage of the equipment. However, the built-in insulating components of the voltage regulator will have different degrees of wear after long-term use. At the same time, the insulating components will oxidize after long-term contact with the air, resulting in a significant reduction in their insulation performance, which can easily cause high-voltage current to be conducted to metal mechanical components, thereby increasing the risk of conductivity for related personnel.

[0004] Therefore, we proposed a 10Kv-110Kv three-frequency withstand voltage test device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a 10Kv-110Kv three-frequency withstand voltage test device. Through an intelligent auxiliary mechanism connected to a wiring shield, relevant data before the test are written from a display. After the test starts, it rotates clockwise to quickly increase the voltage to a numerical range of a measuring scale pointed to by a pointer. Subsequently, the stagnation time of each adjusted voltage is unified through a timing module, and the interval time of each voltage increase is reasonably controlled until the voltage is increased to the range expected to be reached by the measured object, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a 10Kv-110Kv three-frequency withstand voltage test device, comprising a wiring protection shell, the front surface of which is fixedly mounted with an external base; An intelligent auxiliary mechanism is provided on one side of the outer wall of the wiring protection shell; The intelligent auxiliary mechanism includes a first rectangular groove, a first PCB circuit board is fixedly connected to the inside of the first rectangular groove, a group of contact bases are fixedly connected to the outer wall of the first PCB circuit board, an import module, an analysis module, a timing module and an instruction transmission module are respectively arranged inside the group of contact bases, a second rectangular groove is opened on the front surface of the wiring shell, a plc controller is fixedly installed on the inner wall of the second rectangular groove, a group of information lines are fixedly connected to the wiring terminals of the plc controller, and the input ends of the group of information lines are connected to the internal wiring of the equipment, and a third rectangular groove is opened at the bottom of the external base, and a drive motor is fixedly installed inside the third rectangular groove.

[0007] Preferably, an external plate is welded to one side of the outer wall of the wiring protective shell, an extension rod is fixedly installed on the top of the external plate, a movable roller sleeve is movable on the outer wall of the extension rod, a display is fixedly installed on the outer wall of the movable roller sleeve, and a touch screen is provided on the front surface of the display.

[0008] Preferably, a hollow sleeve is fixedly installed at the center of the external base, a linkage rod is movably inserted inside the hollow sleeve, an external sleeve ring is fixedly sleeved on the outer wall of the linkage rod, and a pointer is embedded inside the external sleeve ring.

[0009] Preferably, an annular groove is provided on the top of the external base, a plurality of measuring scales are fixedly mounted on the bottom of the inner wall of the annular groove, the pointer is movably disposed inside the annular groove, and a mechanical turntable is fixedly mounted on the top of the linkage rod.

[0010] Preferably, a lower bracket and a U-shaped frame are fixedly mounted on the bottom of the external base, a potentiometer is fixedly mounted inside the U-shaped frame, and the linkage rod is horizontally inserted into the inside of the potentiometer.

[0011] Preferably, a second PCB circuit board is fixedly installed inside the lower bracket, the sensing end of the potentiometer is fixedly connected to a touch base, and the wiring terminal of the touch base is connected to the internal wiring of the second PCB circuit board.

[0012] Preferably, the outer wall of the second PCB circuit board is respectively fixedly connected with a variable resistor, a bidirectional trigger diode, a bidirectional thyristor and a capacitor, and the outer wall of the second PCB circuit board is fixedly installed with a heat dissipation frame, and the heat dissipation frame is sleeved on the outer wall of the bidirectional thyristor.

[0013] Preferably, an outer wall of the second PCB circuit board is fixedly connected to an electric bus, a group of conductive rods are arranged inside the electric bus, a connector is sleeved on the outer wall of each of the conductive rods, a wiring base is preset inside the second rectangular groove, a group of wires are fixedly connected inside the wiring base, and the number of wires in a group is equal to the number of conductive rods, and the output end of each of the wires is respectively connected to the wiring end of a corresponding connector.

[0014] Preferably, a driving roller is fixedly mounted on the shaft end of the driving motor, a driven roller is fixedly mounted on the bottom of the linkage rod, and a traction belt is movablely mounted between the inner surface walls of the driving roller and the driven roller.

[0015] Preferably, the first rectangular groove is opened on one side of the outer wall of the wiring protection shell, the outer surface of the wiring protection shell is respectively provided with a voltage viewing window, a digital display time relay and a group of indicator lights, and a group of brackets are welded on the front surface of the wiring protection shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets an intelligent auxiliary mechanism. Before the equipment test, relevant data are written from the display and temporarily stored in the analysis module. After the zero-position indicator light is on, the analysis module closes the switch and the test starts. During the process, the test signal is sent to the PLC controller by the instruction transmission module to control the start of the driving component, drive the potentiometer to rotate clockwise, speed up the current input and output rate, reduce the internal resistance of the variable resistor, and quickly increase the voltage to the numerical range of a measuring scale pointed by the pointer. Subsequently, the stagnation time of each regulated voltage is unified through the timing module, and the interval time of each voltage increase is reasonably controlled until the voltage is increased to the range expected by the measured object. The mechanism adopts an operation mode of coordinating mechanical transmission with information collection, and independently completes the steps of data writing, component driving, voltage change and timing control, thereby reducing the items of manual participation in the entire equipment test process, avoiding direct contact between human body and equipment-related components, effectively reducing the probability of manual electric shock due to aging of insulating components, and improving the safety of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a main structural stereogram of the 10Kv-110Kv three-frequency withstand voltage test device of the present invention; Figure 2 It is a side view of the structure of the 10Kv-110Kv three-frequency withstand voltage test device of the present invention; Figure 3 This is a bottom side structural stereogram of the 10Kv-110Kv three-frequency withstand voltage test device of the present invention; Figure 4 The 10Kv-110Kv three-frequency withstand voltage test device of the present invention is Figure 3A magnified stereoscopic image of the structure at center A; Figure 5 The 10Kv-110Kv three-frequency withstand voltage test device of the present invention is Figure 3 The enlarged stereogram of the structure at B in the middle; Figure 6 It is an enlarged stereoscopic diagram of the structure of the intelligent auxiliary mechanism in the 10Kv-110Kv three-frequency withstand voltage test device of the present invention; Figure 7 It is an enlarged stereoscopic diagram of part of the structure of the 10Kv-110Kv three-frequency withstand voltage test device of the present invention.

[0018] In the figure: 1, wiring housing; 2, external base; 3, intelligent auxiliary mechanism; 301, first rectangular groove; 302, first PCB circuit board; 303, contact base; 304, import module; 305, analysis module; 306, timing module; 307, instruction transmission module; 308, second rectangular groove; 309, plc controller; 310, external board; 311, extension rod; 312, movable roller; 313, display; 314, third rectangular groove; 315, drive motor; 316, active roller; 317, driven roller; 318, Traction belt; 4. Hollow sleeve; 5. Linkage rod; 6. External sleeve; 7. Pointer; 8. Annular groove; 9. Measuring scale; 10. Mechanical turntable; 11. Lower bracket; 12. Second PCB circuit board; 13. U-shaped frame; 14. Potentiometer; 15. Variable resistor; 16. Bidirectional trigger diode; 17. Bidirectional thyristor; 18. Heat dissipation frame; 19. Capacitor; 20. Electric bus; 21. Conductive rod; 22. Connector; 23. Wiring base; 24. Wire; 25. Voltage viewing window; 26. Digital time relay; 27. Indicator light; 28. Bracket. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please refer to the attached Figure 1 -Attached Figure 7 As shown, the present invention provides a technical solution: a 10Kv-110Kv three-frequency withstand voltage test device, comprising a wiring protection shell 1, an external base 2 is fixedly installed on the front surface of the wiring protection shell 1, and an intelligent auxiliary mechanism 3 is provided on one side of the outer wall of the wiring protection shell 1.

[0021] according to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the intelligent auxiliary mechanism 3 includes a first rectangular groove 301, a first PCB circuit board 302 is fixedly connected inside the first rectangular groove 301, a group of contact bases 303 are fixedly connected to the outer wall of the first PCB circuit board 302, an import module 304, an analysis module 305, a timing module 306 and an instruction transmission module 307 are respectively arranged inside the group of contact bases 303, a second rectangular groove 308 is opened on the front surface of the wiring protection shell 1, a plc controller 309 is fixedly installed on the inner surface wall of the second rectangular groove 308, a group of information lines are fixedly connected to the wiring terminals of the plc controller 309, and a group of The input ends of the information lines are connected to the internal wiring of the equipment. A third rectangular groove 314 is provided at the bottom of the external base 2. A drive motor 315 is fixedly installed inside the third rectangular groove 314. By presetting the above components, the relevant data before the test are written from the display 3131 through the intelligent auxiliary mechanism 3 connected to the wiring shell 1. After the test starts, it rotates clockwise to quickly increase the voltage to the numerical range of a measuring scale pointed to by the pointer 7. Subsequently, the stagnation time of each adjusted voltage is unified through the timing module 306, and the interval time of each voltage increase is reasonably controlled until the voltage is increased to the expected range of the measured object.

[0022] according to Figure 6 As shown, an external board 310 is welded to one side of the outer wall of the wiring protection shell 1, an extension rod 311 is fixedly installed on the top of the external board 310, the outer wall of the extension rod 311 is movably sleeved with a movable roller sleeve 312, the outer wall of the movable roller sleeve 312 is fixedly installed with a display 313, and the front surface of the display 313 is provided with a touch screen. By presetting the above components, according to the content displayed on the touch screen, the corresponding interface can be consulted, and relevant data can be written into the equipment system program, such as the pre-test time for each voltage and the interval time for different voltage tests.

[0023] according to Figure 2 and Figure 6 As shown, a hollow sleeve 4 is fixedly installed at the center of the external base 2, a linkage rod 5 is movably inserted inside the hollow sleeve 4, an external sleeve ring 6 is fixedly sleeved on the outer wall of the linkage rod 5, and a pointer 7 is embedded inside the external sleeve ring 6. By presetting the above components, the equipment does not replace the traditional mechanical components. When the system autonomously adjusts the voltage, the pointer 7 can rotate in real time and finally point to the corresponding metering scale 9, so that the operator can view it more intuitively.

[0024] according to Figure 1 and Figure 6As shown, an annular groove 8 is opened on the top of the external base 2, and a plurality of measuring scales 9 are fixedly installed on the bottom of the inner wall of the annular groove 8. The pointer 7 is movably placed inside the annular groove 8, and a mechanical turntable 10 is fixedly installed on the top of the linkage rod 5. By presetting the above components, the device retains the traditional mechanical adjustment mode. During the process, the mechanical turntable 10 is held and the potentiometer 14 is slowly turned. The voltage intensity can be determined by checking the measuring scale 9 corresponding to the pointer 7 and observing the content displayed in the voltage viewing window 25, thereby ensuring that the device is suitable for multiple types of people.

[0025] according to Figure 4 and Figure 7 As shown, a lower bracket 11 and a U-shaped frame 13 are fixedly installed at the bottom of the external base 2, a potentiometer 14 is fixedly installed inside the U-shaped frame 13, and a linkage rod 5 is horizontally inserted into the inside of the potentiometer 14. By presetting the above components and utilizing the connection relationship between the linkage rod 5, the potentiometer 14 and related mechanical components, the potentiometer 14 synchronously drives the pointer 7 to rotate when rotating, thereby realizing automatic adjustment of the voltage intensity.

[0026] according to Figure 7 As shown, a second PCB circuit board 12 is fixedly installed inside the lower bracket 11, a sensing end of the potentiometer 14 is fixedly connected to a touch base, and a wiring terminal of the touch base is connected to an internal wiring of the second PCB circuit board 12. By presetting the above components, when the potentiometer 14 rotates clockwise, the current release rate is accelerated, the resistance value of the variable resistor 15 becomes smaller, and the voltage is likely to increase. On the contrary, the current input and output rate is reduced, and the voltage is weakened.

[0027] according to Figure 7 As shown, the outer wall of the second PCB circuit board 12 is respectively fixedly connected with a variable resistor 15, a bidirectional trigger diode 16, a bidirectional thyristor 17 and a capacitor 19, and the outer wall of the second PCB circuit board 12 is fixedly installed with a heat dissipation frame 18, and the heat dissipation frame 18 is sleeved on the outer wall of the bidirectional thyristor 17. By presetting the above components, since the bidirectional thyristor 17 will generate a certain amount of energy and metal material loss during operation, it will continue to generate heat. Subsequently, the heat dissipation frame 18 can continuously absorb heat by utilizing the heat conduction of the metal material to ensure that the bidirectional thyristor 17 is always operating at a relatively constant temperature.

[0028] according to Figure 5 and Figure 7As shown, the outer wall of the second PCB circuit board 12 is fixedly connected to an electric bus 20, and a group of conductive rods 21 are arranged inside the electric bus 20. The outer wall of each conductive rod 21 is sleeved and connected with a connector 22. A wiring base 23 is preset inside the second rectangular groove 308. A group of wires 24 are fixedly connected inside the wiring base 23, and the number of a group of wires 24 is equal to that of the conductive rods 21. The output end of each wire 24 is respectively connected to the wiring end of a corresponding connector 22. By presetting the above, the set group of wires 24 are respectively a neutral line and a live line, and form a complete closed loop with multiple electrical components in the second PCB circuit board 12.

[0029] according to Figure 4 and Figure 6 As shown, the shaft end fixed sleeve of the driving motor 315 is provided with a driving roller 316, the bottom of the linkage rod 5 is fixedly installed with a driven roller 317, and a traction belt 318 is movable between the inner surface walls of the driving roller 316 and the driven roller 317. By presetting the above components, the direction of power transmission is determined.

[0030] according to Figure 1 , Figure 2 and Figure 3 As shown, the first rectangular groove 301 is opened on one side of the outer wall of the wiring protective shell 1, and the outer surface of the wiring protective shell 1 is respectively provided with a voltage viewing window 25, a digital display time relay 26 and a group of indicator lights 27. A group of brackets 28 are welded on the front surface of the wiring protective shell 1. By presetting the above components, the voltage can be viewed through the window 25 and the adjusted voltage intensity can be visually viewed. The digital display time relay 26 is used to display the pre-test time of each voltage. A group of indicator lights 27 are respectively for prompting the operation of each function and completion and error alarms.

[0031] The effect achieved by the entire mechanism is as follows: first, the equipment is moved to the designated work area, and the bottom of the wiring shield 1 and the bracket 28 are fully in contact with the ground, a pressure-resistant machine suitable for the equipment, such as oil type, gas type or dry type, is selected, and multiple wires are accurately assembled between the two one by one, and then the external line is connected to the power supply of the equipment to provide energy for multiple electrical components and tests therein, and the high-voltage end of the pressure-resistant machine is connected to the predicted test object, and the touch screen on the manual operation display 313 is used to set various voltage intensities of the pre-test and the voltage intensities of the final pre-test in turn, and the interval time for each voltage adjustment is set, and the relevant data is quickly imported into the analysis module 305 by the import module 304 for temporary storage, and the corresponding indicator light 27 is observed at the beginning of the test, and when the zero position indicator light is on, the circuit breaker starts to close, and the start signal is quickly transmitted to the PLC controller 309 by the command transmission module 307. , and then the PLC controller 309 controls the opening of the drive motor 315 and acts on the active roller 316. The power can be transmitted to the driven roller 317 under the traction of the traction belt 318, driving the potentiometer 14 and the pointer 7 to rotate synchronously. The clockwise rotating potentiometer 14 can accelerate the current release rate, reduce the internal resistance of the variable resistor 15, and quickly increase the voltage intensity to the range of a measuring scale 9 pointed to by the pointer 7. At this time, the timing module 306 is responsible for timing. When the interval time is reached, a secondary voltage boost is performed. The above method is used until the voltage is increased to the predetermined range of the measured object, and then the timing module 306 starts timing. The value can be viewed in the digital display time relay 26. The predicted object pressure resistance surface is obtained within the set time. Subsequently, the PLC controller 309 controls the drive motor 315 to open in the reverse direction, reset each mechanical component, and stop current transmission.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. 10Kv-110Kv three-frequency withstand voltage test device, characterized by: It comprises a wiring protection shell (1), wherein an external base (2) is fixedly mounted on the front surface of the wiring protection shell (1); An intelligent auxiliary mechanism (3) is provided on one side of the outer wall of the wiring protection housing (1); The intelligent auxiliary mechanism (3) comprises a first rectangular groove (301), a first PCB circuit board (302) is fixedly connected inside the first rectangular groove (301), a group of contact bases (303) are fixedly connected to the outer wall of the first PCB circuit board (302), an import module (304), an analysis module (305), a timing module (306) and an instruction transmission module (307) are respectively arranged inside the group of contact bases (303), a second rectangular groove (308) is provided on the front surface of the wiring protection shell (1), a PLC controller (309) is fixedly installed on the inner wall of the second rectangular groove (308), a group of information lines are fixedly connected to the wiring terminals of the PLC controller (309), and the input ends of the group of information lines are all connected to the internal wiring of the device, and a third rectangular groove (314) is provided at the bottom of the external base (2), and a driving motor (315) is fixedly installed inside the third rectangular groove (314).

2. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 1 is characterized in that: An external connection plate (310) is welded to one side of the outer wall of the wiring protection shell (1); an extension rod (311) is fixedly mounted on the top of the external connection plate (310); a movable roller sleeve (312) is movably mounted on the outer wall of the extension rod (311); a display (313) is fixedly mounted on the outer wall of the movable roller sleeve (312); and a touch screen is provided on the front surface of the display (313).

3. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 1 is characterized in that: A hollow sleeve (4) is fixedly mounted at the center of the external base (2), a linkage rod (5) is movably inserted inside the hollow sleeve (4), an external sleeve ring (6) is fixedly sleeved on the outer wall of the linkage rod (5), and a pointer (7) is embedded inside the external sleeve ring (6).

4. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 3 is characterized in that: An annular groove (8) is provided on the top of the external base (2), a plurality of measuring scales (9) are fixedly mounted on the bottom of the inner wall of the annular groove (8), the pointer (7) is movably disposed inside the annular groove (8), and a mechanical turntable (10) is fixedly mounted on the top of the linkage rod (5).

5. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 4 is characterized in that: A lower bracket (11) and a U-shaped frame (13) are fixedly mounted on the bottom of the external base (2), a potentiometer (14) is fixedly mounted inside the U-shaped frame (13), and the linkage rod (5) is horizontally inserted into the inside of the potentiometer (14).

6. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 5 is characterized in that: A second PCB circuit board (12) is fixedly mounted inside the lower bracket (11), a sensing end of the potentiometer (14) is fixedly connected to a touch base, and a wiring end of the touch base is connected to an internal wiring of the second PCB circuit board (12).

7. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 6 is characterized in that: The outer wall of the second PCB circuit board (12) is respectively fixedly connected with a variable resistor (15), a bidirectional trigger diode (16), a bidirectional thyristor (17) and a capacitor (19), and the outer wall of the second PCB circuit board (12) is fixedly mounted with a heat dissipation frame (18), the heat dissipation frame (18) being sleeved on the outer wall of the bidirectional thyristor (17).

8. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 6 is characterized in that: An electric bus (20) is fixedly connected to the outer wall of the second PCB circuit board (12), a group of conductive rods (21) are arranged inside the electric bus (20), a connector (22) is sleeved and connected to the outer wall of each conductive rod (21), a wiring base (23) is preset inside the second rectangular groove (308), a group of conductive wires (24) is fixedly connected inside the wiring base (23), and the number of the group of conductive wires (24) is equal to the number of conductive rods (21), and the output end of each conductive wire (24) is respectively connected to the wiring end of a corresponding connector (22).

9. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 3 is characterized in that: A driving roller (316) is fixedly mounted on the shaft end of the driving motor (315), a driven roller (317) is fixedly mounted on the bottom of the linkage rod (5), and a traction belt (318) is movablely mounted between the inner surfaces of the driving roller (316) and the driven roller (317).

10. The 10Kv-110Kv three-frequency withstand voltage test device according to claim 1 is characterized in that: The first rectangular groove (301) is formed on one side of the outer wall of the wiring protection shell (1); a voltage viewing window (25), a digital display time relay (26) and a group of indicator lights (27) are respectively provided on the outer surface of the wiring protection shell (1); and a group of brackets (28) are welded on the front surface of the wiring protection shell (1).

Images