A multi-directional adjustable high-voltage equipment insulation detection support

Abstract

The utility model provides a kind of high-voltage equipment insulation detection support of multidirectional adjustment, including support platform and power supply device.The upper surface of support platform is provided with insulation seat, insulation seat includes static insulation seat and dynamic insulation seat, static insulation seat is fixedly arranged at one end of the support platform, the upper surface of support platform is also provided with guiding mechanism, and dynamic insulation seat can move inside guiding groove and the fixed groove, and voltage contact plate is installed on the inner wall of guiding mechanism.The utility model is fixedly arranged static insulation seat and slidingly arranged dynamic insulation seat on the upper surface of support platform respectively, and the upper surface of support platform is also provided with guiding mechanism, the inner wall of guiding mechanism is respectively provided with elastic limiting device and voltage contact plate, by the combination between above-mentioned parts, grading regulation to test voltage can be effectively realized in insulation test stage, and test wiring does not need manual replacement, effectively improve test efficiency, and can avoid that the influence caused by poor contact to test result.

Description

Technical Field

[0001] This utility model relates to the field of insulation testing, specifically a multi-directional adjustable insulation testing bracket for high-voltage equipment. Background Technology

[0002] To ensure the safe operation of power facilities and prevent accidents, insulators need to be inspected regularly. Currently, my country generally uses the spark gap method to inspect insulators. This method is based on the principle of the voltage difference across the insulator. If each insulator in a string is in good condition, there will be a certain voltage distribution across each insulator during operation. If an insulator deteriorates and loses insulation, the voltage distribution value across that insulator will decrease or approach zero.

[0003] Currently, when conducting high-voltage insulation testing, insulating supports are often used to fix and support the equipment under test or the high-voltage leads. However, existing insulating support devices generally use fixed high-voltage access points. Applying different levels of test voltage or applying voltage at different locations requires manual replacement of test wiring or movement of the high-voltage leads, which is not only cumbersome and inefficient, but may also affect the accuracy of test results due to poor contact. Utility Model Content

[0004] To address the issue that traditional insulation testing equipment may affect the accuracy of test results in the aforementioned technologies, this utility model provides a multi-directional adjustable high-voltage equipment insulation testing bracket.

[0005] The technical solution of this utility model is as follows: A multi-directional adjustable high-voltage equipment insulation testing bracket includes a support platform fixedly mounted on the ground and a power supply device disposed below the support platform. An insulating seat is provided on the upper surface of the support platform. A conductor is provided through the interior of the insulating seat, and the bottom of the insulating seat extends from the bottom of the conductor. The insulating seat includes a static insulating seat and a dynamic insulating seat. The static insulating seat is fixedly provided at one end of the support platform. The upper surface of the support platform is also provided with a guide mechanism, and the moving insulating seat can move along the guide mechanism. The guide mechanism is also provided with multiple voltage contact plates on the moving path of the moving insulating seat. The static insulating base and the plurality of voltage contacts are all electrically connected to the power supply device, and the voltages of the plurality of voltage contacts are different.

[0006] Furthermore, in the multi-directional adjustable high-voltage equipment insulation testing bracket described above, the guiding mechanism includes a guide groove and a plurality of fixing grooves for setting voltage contact plates spaced apart along the length of the guide groove.

[0007] To ensure the safety of the staff during the testing process, a time delay relay is also provided at the other end of the support platform. One end of the time delay relay is connected to the power supply device, and the other end is connected to each of the voltage contact plates.

[0008] Furthermore, in the multi-directional adjustable high-voltage equipment insulation testing bracket described above, the voltage of the plurality of voltage contacts is proportional to the length of the distance from the static insulation base.

[0009] Furthermore, in the multi-directional adjustable high-voltage equipment insulation testing bracket described above, a limiting ring is provided below the conductor inside the moving insulation seat, and the distance from the limiting ring to the bottom of the moving insulation seat is greater than the thickness of the upper surface of the support platform.

[0010] To prevent the equipment from falling off during the testing process, an elastic limiting device is also provided inside the fixing groove, and the elastic limiting device is set on the inner wall on both sides of the fixing groove.

[0011] To ensure safety during operation, a double-button switch is also provided on the outside of the power supply device. The device is activated when both buttons are pressed simultaneously.

[0012] As a preferred technical solution, the moving insulating seat is located inside the fixed groove, and the static insulating seats that are in contact with the voltage contact plate are aligned in a straight line.

[0013] Furthermore, in the multi-directional adjustable high-voltage equipment insulation testing bracket described above, a fastening arc plate is also provided above the inner side of the fixing ring during equipment operation.

[0014] Furthermore, in the multi-directional adjustable high-voltage equipment insulation testing bracket described above, a voltmeter is also installed at one end near the static insulation base, and the voltmeter is disposed between the conductor of the static insulation base and the power supply device.

[0015] The beneficial effects of this utility model are as follows: 1. This utility model features a static insulating seat fixedly mounted on the upper surface of a support platform and a slidably mounted dynamic insulating seat. The upper surface of the support platform is also provided with a guide groove, a fixed groove on one side of the guide groove, and elastic limiting devices and voltage contact plates on the inner walls of the two sides and the end of the fixed groove, respectively. Through the combination of the above components, the test voltage can be effectively adjusted in stages during the insulation test, without the need for manual replacement of the test wiring, which effectively improves the test efficiency and avoids the impact of poor contact on the test results.

[0016] 2. In addition, the power supply device is equipped with a double-button switch to ensure safety checks before equipment startup and prevent accidental power-on due to misoperation of a single button. A time-delay relay is installed between the power supply device and the test equipment. The extended relay can delay opening after the equipment is powered on, and power is turned on only after the test personnel have moved away from the test fixture, which improves the safety of the equipment and reduces the danger of testing. Attached Figure Description

[0017] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; Figure 4 for Figure 1 A magnified view of a portion of the central structure.

[0019] The components represented by the various reference numerals in the diagram are: 1. Support platform; 2. Power supply device; 201. Double push-button switch; 3. Insulating base; 301. Static insulating base; 302. Dynamic insulating base; 31. Conductor; 311. Limiting ring; 4. Guide mechanism; 401. Guide groove; 402. Fixing groove; 5. Voltage contact plate; 501. Elastic limit device; 6. Time delay relay; 7. Fixing ring; 8. Fastening arc plate; 9. Voltmeter. Detailed Implementation

[0020] Example like Figure 1-4 The present invention discloses a multi-directional adjustable high-voltage equipment insulation testing bracket, the purpose of which is to solve the problem of low efficiency and inaccuracy of test results when manual intervention is required by existing insulation testing brackets with fixed high-voltage access points. This embodiment includes a support platform 1 fixed on the ground and a power supply device 2 located below the support platform 1. A double-button switch 201 is also provided on the outside of the power supply device 2; both buttons must be pressed simultaneously to activate the power supply device 2, effectively preventing safety accidents caused by misoperation.

[0021] An insulating seat 3 is provided on the upper surface of the support platform 1. The insulating seat 3 consists of a static insulating seat 301 fixedly mounted on the surface of the support platform 1 and a movable insulating seat 302 movable relative to the support platform 1. The static insulating seat 301 is fixedly mounted at one end of the support platform 1. A conductor 31 is also installed through the interior of the insulating seat 3. The insulating seat 3 is arranged around the conductor 31 in a wrapping manner. The lower end of the conductor 31 extends out of the bottom of the insulating seat 3, and the bottom of the insulating seat 3 extends out to connect with the power supply device 2. In order to more intuitively display the energization status of the insulator to be tested, a voltmeter 9 is installed in series on the connection line between the conductor 31 inside the static insulating seat 301 and the power supply device 2. The voltmeter 9 is located on the surface of the support platform 1, specifically on one side of the static insulating seat 301. The voltmeter 9 can display the voltage value of the detection circuit in real time.

[0022] To facilitate the fixing and testing of the insulation equipment to be tested, a fixing ring 7 is also provided on the surface of the insulation base 3. The bottom of the fixing ring 7 is fixed to the surface of the insulation base 3, and the bottom of the fixing ring 7 is fixedly connected to the top of the conductor 31. A fastening arc plate 8 is also provided inside the fixing ring 7. The outer surface of the fastening arc plate 8 is rotatably connected to the screw. The screw passes through the top of the fixing ring 7 and can rotate around the fixing ring 7.

[0023] To facilitate the movement of the moving insulating seat 302, a guide mechanism 4 is also provided on the upper surface of the support platform 1. The guide mechanism 4 penetrates the upper surface of the support platform 1, allowing the moving insulating seat 302 to move freely on the surface of the guide mechanism 4. To facilitate the movement of the moving insulating seat 302 within the guide mechanism 4, ensure that the moving insulating seat 302 and the support platform 1 form an integrated structure, and reduce assembly errors, the guide mechanism 4 includes a guide groove 401 and multiple fixing grooves 402. In this embodiment, five fixing grooves 402 are provided, all of which are connected to the guide groove 401. In this embodiment, the guide groove 401 and the fixing grooves 402 are perpendicular to each other. The intersecting arrangement of the guide groove 401 and the fixing grooves 402 makes the moving insulating seat 302 move more smoothly when switching between longitudinal and lateral directions. Furthermore, when the moving insulating seat 302 and the stationary insulating seat 301 are engaged, assembly problems are avoided from affecting the test accuracy.

[0024] In addition, in order to increase the stability of the moving insulating seat 302 inside the guide mechanism 4 and prevent it from tipping over, a limiting ring 311 is also provided at the bottom of the guide mechanism 4. The limiting ring 311 is made of insulating material, and the distance from the top of the limiting ring 311 to the bottom of the moving insulating seat 302 is greater than the thickness of the upper surface of the support platform 1, that is, the greater length range is 1-5mm. In this embodiment, the distance from the top of the limiting ring 311 to the bottom of the moving insulating seat 302 is 2mm greater than the thickness of the upper surface of the support platform 1.

[0025] Voltage contact plates 5 are provided on the inner wall of the support platform 1 near the middle of the fixed groove 402. The voltage contact plates 5 are arranged in the direction away from the static insulating seat 301, and the voltage of the voltage contact plates 5 located on different inner walls of the fixed groove 402 is different. The voltage gradually increases in the direction away from the static insulating seat 301, and is 1000V, 2000V, 3000V, 4000V, and 5000V respectively.

[0026] Elastic limiting devices 501 are provided on both inner walls of the fixing groove 402. The elastic limiting devices 501 on both inner walls of the fixing groove 402 are symmetrical about the middle of the fixing groove 402. The elastic limiting devices are made of insulating material and can position the moving insulating seat 302 that has moved to the corresponding position, ensuring that the moving insulating seat 302 is in stable contact with the voltage contact plate 5.

[0027] It is worth noting that, in order to improve the protection effect during the testing phase, a time delay relay 6 is installed on the end of the support platform 1 away from the static insulation base 301 via a bracket. One end of the time delay relay 6 is connected to the power supply device 2, and the other end is connected to each voltage contact plate 5 respectively, which can set the power supply delay time according to the actual testing requirements.

[0028] Please refer to the appendix. Figure 1-4 When using this device, first place one end of the insulator to be tested inside the fixing ring 7 of the static insulating base 301. Rotate the screw at the top of the fixing ring 7 to move the fastening arc plate 8 downwards until the fastening arc plate 8 is tightly attached to the surface of the insulator, thus fixing one end. Push the moving insulating base 302 along the guide groove 401 of the guide mechanism 4 to move it to the position of the fixing groove 402 corresponding to the voltage level. The elastic limiting devices 501 on both sides of the fixing groove 402 stably limit the moving insulating base 302, ensuring that the lower part of its internal conductor 31 is in reliable contact with the voltage contact plate 5. Place the other end of the insulator inside the fixing ring 7 of the moving insulating base 302 and repeat the above tightening operation. Adjust the fastening arc plate 8 by the screw to fix the other end of the insulator, ensuring that the insulator is in a straight and non-slack state.

[0029] After confirming that the insulator is securely installed and the moving insulating base 302 is reliably limited, the inspector simultaneously presses both buttons on the double-button switch 201 of the power supply device 2 (both buttons must be pressed simultaneously to trigger the start-up and prevent accidental operation). The inspector then quickly moves to a safe distance. At this point, the voltage output from the power supply device 2 is transmitted to the voltage contact plate 5 after a preset delay by the time-delay relay 6, and then conducted to the insulator under test through the conductor 31 of the moving insulating base 302, forming a closed detection circuit. The voltmeter 9 between the static insulating base 301 and the power supply device 2 displays the current detection voltage value in real time. The inspector observes the changes in the voltmeter 9 value and whether any abnormal phenomena appear on the surface of the insulator to comprehensively judge its insulation performance.

[0030] After the test is completed, the tester first disconnects the main power supply of the power supply device 2. After waiting for a certain period to ensure that any residual charge in the circuit is completely released, an electroscope is used to contact the conductors 31 of the static insulating seat 301 and the moving insulating seat 302 to confirm that there is no residual voltage before proceeding with subsequent operations. Using a tool, the screws at the top of the fixing rings 7 of the static insulating seat 301 and the moving insulating seat 302 are rotated in the opposite direction, causing the fastening arc plate 8 to move upwards and disengage from the insulator to be tested. The insulator is gently removed from both ends by hand and placed in a dedicated sample storage box. The unlocking key of the elastic limiting device 501 on both sides of the fixing groove 402 is pressed, pushing the moving insulating seat 302 along the fixing groove 402 and the guide groove 401 to the initial stopping position at the edge of the support platform 1.

Claims

1. A multi-directional adjustable high-voltage equipment insulation testing bracket, comprising a support platform (1) fixedly mounted on the ground and a power supply device (2) disposed below the support platform (1), characterized in that, An insulating seat (3) is provided on the upper surface of the support platform (1). A conductor (31) is provided through the interior of the insulating seat (3), and the bottom of the insulating seat (3) extends from the conductor (31). The insulating seat (3) includes a static insulating seat (301) and a dynamic insulating seat (302). The static insulating seat (301) is fixedly provided at one end of the support platform (1). The upper surface of the support platform (1) is also provided with a guide mechanism (4), the moving insulating seat (302) can move along the guide mechanism (4), and the guide mechanism (4) is also provided with multiple voltage contact plates (5) on the moving path of the moving insulating seat (302). The static insulating base (301) and the plurality of voltage contacts (5) are electrically connected to the power supply device (2), and the voltages of the plurality of voltage contacts (5) are different.

2. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, The guiding mechanism (4) includes a guide groove (401) and a plurality of fixing grooves (402) for setting voltage contact plates (5) spaced apart along the length of the guide groove (401).

3. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, The other end of the support platform (1) is also provided with a time delay relay (6), one end of which is connected to the power supply device (2), and the other end is connected to each of the voltage contact plates (5).

4. A multi-adjustable high voltage equipment insulation testing support according to claim 2, wherein, The voltage of the plurality of voltage contacts (5) is proportional to the length of the distance from the static insulating base (301).

5. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, A limiting ring (311) is provided below the conductor (31) inside the moving insulating seat (302), and the distance from the limiting ring (311) to the bottom of the moving insulating seat (302) is greater than the thickness of the upper surface of the support platform (1).

6. A multi-adjustable high voltage equipment insulation testing support according to claim 2, wherein, The fixed groove (402) is also provided with an elastic limiting device (501), which is located on the inner walls on both sides of the fixed groove (402).

7. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, The power supply device (2) is also equipped with a double button switch (201) on its outside. The double button switch (201) is activated when pressed simultaneously.

8. A multi-adjustable high voltage equipment insulation testing support according to claim 2, wherein, The moving insulating seat (302) is located inside the fixed groove (402), and the static insulating seats (301) that are in contact with the voltage contact plate are aligned in a straight line.

9. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, The surface of the insulating base (3) is also provided with a fixing ring (7), the bottom of the fixing ring (7) is connected to the top of the conductor (31), and a fastening arc plate (8) is also provided on the upper inner side of the fixing ring (7).

10. A multi-adjustable high voltage equipment insulation testing support according to claim 1, wherein, A voltmeter (9) is also installed at one end near the static insulating base (301), the voltmeter (9) being positioned between the conductor (31) of the static insulating base (301) and the power supply device (2).

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