A voltage reactive power generator fault testing device

Abstract

This invention relates to a voltage reactive power generator fault testing device, belonging to the field of voltage reactive power generator testing technology. It includes a base, with a first turntable and a second turntable mounted at both ends of a rotating rod; a third turntable and a fourth turntable are located on the outer sides of the first and second turntables; a first transmission rod is located between the first and third turntables, and a second transmission rod is located between the second and fourth turntables; a first right-angled seat is located between the first and third turntables, and a second right-angled seat is located between the second and fourth turntables; a horizontal drive assembly is located on the top of both the first and second right-angled seats, and a first plate and a second plate are mounted on the sides of the horizontal drive assembly. A voltage testing rod is mounted on each of the first and second plates. This invention reduces the risk of electric shock during fault testing, eliminates the hazard of electric shock, simplifies the operation process, and significantly improves testing efficiency, providing a safe and efficient solution for fault testing.

Description

Technical Field

[0001] This invention relates to the field of voltage reactive power generator testing technology, and specifically discloses a voltage reactive power generator fault testing device. Background Technology

[0002] A voltage var generator (SVG) is a power electronic device that dynamically compensates for reactive power in the power grid by precisely controlling the output voltage on the AC side. Its core functions are to maintain voltage stability, improve the power factor, and enhance grid performance. On the DC side of the SVG, DC support capacitors store energy and stabilize the bus voltage, while parallel DC resistive elements play a crucial auxiliary role: equalizing resistors ensure that the voltage across each unit in the series capacitor bank is balanced, preventing individual overvoltage breakdown due to uneven voltage distribution; and discharge resistors provide a safe and reliable energy discharge path for the capacitors after the equipment is shut down, eliminating the risk of residual high-voltage electric shock.

[0003] Most voltage reactive power generators are equipped with multiple sets of vertically arranged DC resistive elements. Each set typically has two elements: one is the main discharge resistor, connected in parallel with a DC capacitor via a contactor to quickly release capacitor energy during shutdown; the other is an auxiliary discharge resistor connected in series with the main discharge resistor, whose main function is to absorb high-frequency oscillation energy and suppress resonance caused by switching actions or parasitic parameters. The main and auxiliary discharge resistors are arranged vertically, with the top of the main discharge resistor higher than the top of the auxiliary discharge resistor, and the top of the auxiliary discharge resistor higher than the bottom of the main discharge resistor. This design facilitates heat dissipation from both the main and auxiliary discharge resistors.

[0004] Currently, when a voltage reactive power generator malfunctions, maintenance personnel need to use handheld voltage testing equipment to check the voltage of the main discharge resistor and the auxiliary discharge resistor. A utility model patent with announcement number CN217332653U discloses a portable SVG module tester. Maintenance personnel can use this prior art tester to obtain key voltage parameters by holding it close to the main discharge resistor and the auxiliary discharge resistor, thereby determining whether the main discharge resistor and the auxiliary discharge resistor are faulty.

[0005] When performing the aforementioned troubleshooting operations, manual testing of the voltage values ​​of the DC-side resistors on the SVG (Static Var Generator) suffers from significant safety and efficiency drawbacks. Specifically: First, operators must directly contact high-voltage live areas, facing a fatal risk of electric shock. Especially when the discharge resistor fails, the capacitor bank may retain thousands of volts of high voltage; any accidental contact or failure of insulating tools could trigger an arc flashover or personal injury. Simultaneously, operations within confined cabinets are prone to tools slipping and causing short circuits and explosions, while repetitive close-range testing exposes personnel to strong electromagnetic fields for extended periods. Second, this method requires equipment shutdown and the execution of cumbersome safety isolation procedures, severely extending the maintenance window. Manual point-by-point measurement is time-consuming and labor-intensive, and can only obtain static data at discrete time points, failing to capture anomalies under dynamic operating conditions. In conclusion, existing troubleshooting methods fail to guarantee inherent personnel safety, are inefficient, and have limited detection effectiveness, becoming a technical bottleneck restricting the reliable operation of equipment. Summary of the Invention

[0006] To address the problems of high risk of electric shock and low testing efficiency in the current troubleshooting process of voltage reactive power generators, this invention provides a fault testing device for voltage reactive power generators.

[0007] To address the above problems, the present invention provides the following technical solution:

[0008] A voltage reactive power generator fault testing device includes a base, a support frame fixedly installed in the middle of the base, a rotating rod disposed within the support frame, and a first turntable and a second turntable fixedly mounted at both ends of the rotating rod. The first and second turntables are respectively provided with a first strip-shaped through groove and a second strip-shaped through groove. A third turntable and a fourth turntable are respectively disposed on the outer sides of the first and second turntables. A drive shaft is fixedly connected to the outer side of the third turntable, and a third strip-shaped through groove is provided on the third turntable. A first transmission rod is disposed between the first and third turntables, with both ends of the first transmission rod arranged in the first and third strip-shaped through grooves respectively. A fourth strip-shaped through groove is provided on the fourth turntable. A second transmission rod is disposed between the second and fourth turntables, with both ends of the second transmission rod respectively... Arranged within the second and fourth strip-shaped through slots; the outer periphery of the first and second transmission rods is respectively fitted with a first and a second mounting base that rotatably engage with them; a first right-angled seat is provided between the first and third turntables, and a second right-angled seat is provided between the second and fourth turntables; the bottom ends of the first and second right-angled seats are respectively in horizontal linear sliding engagement with the first and second mounting bases, and the inner sides of the first and second right-angled seats are respectively in vertical linear sliding engagement with the two sides of the support frame; a horizontal drive assembly is provided on the top of both the first and second right-angled seats, and a first and a second plate are mounted on the side of the horizontal drive assembly; voltage test rods are fixedly installed on both the first and second plate, and the two voltage test rods are used to test the DC resistance element of the voltage reactive power generator.

[0009] Preferably, the first and second strip-shaped through slots are arranged in a straight line radiating outward from the center of the first and second turntables, respectively. The first and second strip-shaped through slots are symmetrically rotated 180° with the rotating rod as a reference. The first and third strip-shaped through slots are arranged in an overlapping and symmetrical arrangement, and the second and fourth strip-shaped through slots are arranged in an overlapping and symmetrical arrangement.

[0010] Preferably, the inner surfaces of the first, second, third, and fourth strip-shaped through grooves are all right-angled stepped structures. The two ends of the first transmission rod are respectively fitted with a first locking sleeve and a second locking sleeve, and the outer walls of the first and second locking sleeves are respectively engaged with the inner surfaces of the first and third strip-shaped through grooves. The two ends of the second transmission rod are respectively fitted with a third locking sleeve and a fourth locking sleeve, and the outer walls of the third and fourth locking sleeves are respectively engaged with the inner surfaces of the second and fourth strip-shaped through grooves.

[0011] Preferably, the bottom ends of the first right-angle base and the second right-angle base are respectively fixedly installed with a first guide rail and a second guide rail. The first guide rail and the second guide rail are both horizontally arranged and parallel to each other. The top ends of the first set base and the second set base are respectively fixedly installed with a first slide block and a second slide block. The first slide block and the second slide block slide in cooperation with the first guide rail and the second guide rail, respectively.

[0012] Preferably, a third guide rail and a fourth guide rail are fixedly installed on both sides of the support frame, and the third guide rail and the fourth guide rail are arranged in parallel. A third slide block and a fourth slide block are slidably installed on the third guide rail and the fourth guide rail, respectively. The third slide block and the fourth slide block are respectively fastened to the inner side of the first right-angle seat and the second right-angle seat.

[0013] Preferably, a first support seat and a second support seat are fixedly installed on the base. The first support seat and the second support seat are respectively arranged on the outer side of the third turntable and the fourth turntable. The drive shaft is rotatably engaged with the first support seat. A first support shaft is installed on the outer surface of the fourth turntable, and the first support shaft is rotatably engaged with the second support seat. A third support seat is provided on the outer side of the first support seat. The third support seat is fastened to the base. A second support shaft is rotatably engaged inside the third support seat. The second support shaft is connected to the drive shaft through a coupling rod.

[0014] Preferably, the tops of the first support base and the third support base are fixedly mounted on the same top plate, and an induction motor is fixedly mounted on the top plate. The output shaft of the induction motor is arranged vertically downward, and a first bevel gear is fastened to the output shaft of the induction motor. A second bevel gear is fastened to the drive shaft. The first bevel gear and the second bevel gear are both arranged between the first support base and the third support base, and the first bevel gear and the second bevel gear mesh at right angles for transmission.

[0015] Preferably, the horizontal drive assembly includes a support plate that is fastened to the first right-angle seat and the second right-angle seat. A stabilizer and a fifth guide rail are fixedly installed on the inner side of the support plate. A horizontally arranged electric push rod is fixedly installed inside the stabilizer. The electric push rod is arranged above the support plate. A bracket is fixedly connected to the end of the stroke rod of the electric push rod. A fifth slide is fastened to the bottom of the bracket. The fifth slide slides in sliding engagement with the fifth guide rail. An adjustment plate is fastened to the side of the fifth slide. The first plate and the second plate are symmetrically arranged outside the adjustment plate. Both voltage test rods are arranged above the first plate and the second plate.

[0016] Preferably, an electric slide rail is fixedly installed on the outer side of the adjusting plate, and a sixth slide block and a seventh slide block are slidably installed on the electric slide rail. The sixth slide block and the seventh slide block are respectively fastened to the first plate and the second plate. A first communication bus connector and a second communication bus connector are respectively fixedly installed on the bottom of the first plate and the second plate. A first pad and a second pad block are respectively fixedly installed on the first plate and the second plate. A first right-angle bent rod and a second right-angle bent rod are respectively fixedly installed on the top of the first pad block and the second pad block. Two voltage test rods are respectively fixedly installed on the side plates of the first right-angle bent rod and the second right-angle bent rod. The two voltage test rods are respectively electrically connected to the first communication bus connector and the second communication bus connector.

[0017] Preferably, a first spring reset cylinder and a second spring reset cylinder are respectively provided on both sides of the support frame. The bottom of the cylinder body of the first spring reset cylinder and the second spring reset cylinder are both fastened to the base. The first spring reset cylinder and the second spring reset cylinder are arranged symmetrically. The top end of the piston rod of the first spring reset cylinder is fastened to the first right-angle seat, and the top end of the piston rod of the second spring reset cylinder is fastened to the second right-angle seat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention, through its insulated base and external deployment design, allows operators to be completely away from high-voltage areas. Contact measurements are performed using voltage test rods that can be remotely and precisely controlled. The mechanical transmission system, composed of various turntables, transmission rods, right-angle seats, mounting bases, and horizontal drive components, can precisely convert the driving action into complex coordinated movements of the two voltage test rods in the horizontal and vertical directions. Combined with a spring-return cylinder, it ensures that the device can quickly and reliably detach from the test point in an emergency. This invention fundamentally eliminates the risk of fatal electric shock, arc flashover, and short-circuit explosion faced by maintenance personnel when directly contacting high-voltage components, significantly improving the inherent safety of the operation.

[0020] 2. This invention adopts a dual-test rod design. Under the action of the induction motor drive and the linkage mechanism between each turntable and transmission rod, the height and position of the test rod can be adjusted synchronously and quickly to realize the parallel measurement of the voltage values ​​of the main and auxiliary discharge resistors, which greatly improves the testing efficiency. In addition, the horizontal drive component can realize the precise positioning and adjustment of the voltage test rod spacing and extension distance, which facilitates the real-time transmission of test data to the terminal through the communication bus. This not only greatly shortens the detection time, but also captures dynamic working conditions and transient anomalies that cannot be obtained manually.

[0021] 3. This invention, by setting up symmetrically arranged first, second, third, and fourth turntables, and cooperating with a bevel gear and coupling rod balance transmission mechanism, ensures the synchronization and stability of the device operation, effectively reduces wear, and improves durability. At the same time, the height and spacing of the voltage test rods have adaptive adjustment capabilities, are compatible with different equipment layouts, and can perform fault testing operations simply by placing the device externally. This eliminates the equipment shutdown and complex safety isolation procedures required by existing manual testing methods, significantly shortens the maintenance window, and reduces the skill requirements for personnel and the overall maintenance cost. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall device structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the mounting structure of the first right-angle bracket and the second right-angle bracket of the present invention;

[0025] Figure 3 This is a schematic diagram of the mounting structure of the first and second turntables of the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the mounting structure of the first and second turntables of the present invention. Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the assembly structure of the first, second, third, and fourth turntables of the present invention.

[0028] Figure 6 This is a schematic diagram of the first mounting structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the first strip-shaped through-slot structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the second mounting structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the second strip-shaped through-slot structure of the present invention;

[0032] Figure 10 This is a schematic diagram of the induction motor mounting structure of the present invention;

[0033] Figure 11This is a schematic diagram of the mating and mounting structure of the first bevel gear and the second bevel gear of the present invention.

[0034] Figure 12 This is a schematic diagram of the horizontal drive component structure of the present invention;

[0035] Figure 13 This is a schematic diagram of the voltage test rod mounting structure of the present invention;

[0036] In the diagram: 1. Base, 2. Support frame, 3. Rotating rod, 4. First turntable, 5. Second turntable, 6. First slotted groove, 7. Second slotted groove, 8. Third turntable, 9. Fourth turntable, 10. Drive shaft, 11. Third slotted groove, 12. First transmission rod, 13. Fourth slotted groove, 14. Second transmission rod, 15. First mounting base, 16. Second mounting base, 17. First right-angle base, 18. Second right-angle base, 19. Horizontal drive assembly, 1901. Support plate, 1902. Stabilizer, 1903. Fifth guide rail, 1904. Electric push rod, 1905. Bracket, 1906. Fifth slide, 1907. Adjusting plate, 1908. Electric slide rail, 1909. Sixth slide, 1910. Seventh slide, 20. First plate, 21. Second plate, 22. Voltage Test rod, 23. First locking block sleeve, 24. Second locking block sleeve, 25. Third locking block sleeve, 26. Fourth locking block sleeve, 27. First guide rail, 28. Second guide rail, 29. First slide block, 30. Second slide block, 31. Third guide rail, 32. Fourth guide rail, 33. Third slide block, 34. Fourth slide block, 35. First support seat, 36. Second support seat, 37. First support shaft, 38. Third support seat, 39. Second support shaft, 40. Coupling rod, 41. Top plate, 42. Induction motor, 43. First bevel gear, 44. Second bevel gear, 45. First communication bus connector, 46. Second communication bus connector, 47. First pad, 48. Second pad, 49. First right-angle bent rod, 50. Second right-angle bent rod, 51. First spring return cylinder, 52. Second spring return cylinder. Detailed Implementation

[0037] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0038] This specific embodiment provides a voltage reactive power generator fault testing device, such as... Figures 1-13As shown, the system includes a base 1, which consists of a base platform and an outer frame, the outer frame of which may be made of insulating material. A support frame 2 is fixedly installed in the center of the base platform of the base 1. The support frame 2 is composed of two longitudinal beams on both sides and multiple horizontal beams arranged vertically inside, all securely assembled. The bottoms of the two longitudinal beams on both sides of the support frame 2 are securely connected to the base platform of the base 1, and both longitudinal beams are vertically arranged. A rotating rod 3 is rotatably installed inside the lowest horizontal beam of the support frame 2, and the outer periphery of the rotating rod 3 is rotatably engaged with the support frame 2 via a bearing ring.

[0039] One end of the rotating rod 3 is fixedly fitted with a first turntable 4, and the other end of the rotating rod 3 is fixedly fitted with a second turntable 5. The first turntable 4 and the second turntable 5 are symmetrically arranged on both sides of the support frame 2, and both the first turntable 4 and the second turntable 5 are vertically arranged. The first turntable 4 and the second turntable 5 are both disc-shaped structures, and the ends of the rotating rod 3 are respectively fastened to the center points of the first turntable 4 and the second turntable 5. A third turntable 8 is provided on the outer side of the first turntable 4, and a fourth turntable 9 is provided on the outer side of the second turntable 5. The third turntable 8 and the fourth turntable 9 are symmetrically arranged. The first turntable 4 and the third turntable 8 are respectively provided with a first strip-shaped through groove 6 and a third strip-shaped through groove 11, which are arranged in a straight line radiating outward from the center of the first turntable 4 and the third turntable 8, respectively. The second turntable 5 and the fourth turntable 9 are respectively provided with a second strip-shaped through groove 7 and a fourth strip-shaped through groove 13, which are arranged in a straight line radiating outward from the center of the second turntable 5 and the fourth turntable 9, respectively. The first strip-shaped through groove 6 and the third strip-shaped through groove 11 are arranged in an overlapping and symmetrical arrangement, and the second strip-shaped through groove 7 and the fourth strip-shaped through groove 13 are arranged in an overlapping and symmetrical arrangement. At the same time, the first strip-shaped through groove 6 and the second strip-shaped through groove 7 are rotated symmetrically by 180° with the rotating rod 3 as the reference, so that the arrangement height of the first strip-shaped through groove 6 and the second strip-shaped through groove 7 is different except in the horizontal state.

[0040] A drive shaft 10 is fixedly connected to the outer surface of the third turntable 8, and one end of the drive shaft 10 is tightly connected to the center of the third turntable 8. A first support seat 35 and a third support seat 38 are arranged sequentially on the outer side of the third turntable 8. Both the first support seat 35 and the third support seat 38 are tightly connected to the top surface of the base 1. The outer wall of the drive shaft 10 is rotatably engaged with the first support seat 35 by installing a bearing ring.

[0041] The top of the first support 35 and the third support 38 are fixedly mounted on the same top plate 41. An induction motor 42 is fixedly mounted on the top plate 41. The output shaft of the induction motor 42 is arranged vertically downwards. The end of the output shaft of the induction motor 42 is arranged between the first support 35 and the third support 38. A first bevel gear 43 is fastened to the end of the output shaft of the induction motor 42. A second bevel gear 44 is fastened to one end of the outer side of the drive shaft 10. The first bevel gear 43 and the second bevel gear 44 are both arranged between the first support 35 and the third support 38. The first bevel gear 43 and the second bevel gear 44 mesh at a right angle to drive each other. Thus, the drive shaft 10 rotates at a uniform speed under the driving action of the induction motor 42. The third support base 38 contains a second support shaft 39 rotatably mounted therein. The outer periphery of the second support shaft 39 is rotatably engaged with the third support base 38 via a bearing ring. The second support shaft 39 is arranged at the same height as the drive shaft 10. Furthermore, the second support shaft 39 and the drive shaft 10 are connected by a coupling rod 40, thereby balancing the transmission balance structure on both sides of the first bevel gear 43 and the second bevel gear 44, avoiding eccentric wear between the first bevel gear 43 and the second bevel gear 44, and thus improving the durability of the device.

[0042] A first transmission rod 12 is provided between the first turntable 4 and the third turntable 8. The first transmission rod 12 is arranged horizontally. A first locking sleeve 23 and a second locking sleeve 24 are respectively fitted at both ends of the first transmission rod 12. The first locking sleeve 23 is arranged in the first strip-shaped through groove 6, and the second locking sleeve 24 is arranged in the third strip-shaped through groove 11. The inner groove surfaces of the first strip-shaped through groove 6 and the third strip-shaped through groove 11 are both right-angled stepped structures. The two sides of the first locking sleeve 23 and the second locking sleeve 24 are both stepped structures, so that the outer walls of the two sides of the first locking sleeve 23 and the second locking sleeve 24 are respectively fastened and locked to the inner groove surfaces of the first strip-shaped through groove 6 and the third strip-shaped through groove 11. The first locking sleeve 23 and the second locking sleeve 24 are respectively fastened to the first turntable 4 and the third turntable 8 by fixing and mounting bolts. The first strip-shaped through groove 6 and the third strip-shaped through groove 11 of the above-mentioned right-angled stepped structure can be fixedly engaged with the first locking sleeve 23 and the second locking sleeve 24 respectively, and ensure that the first locking sleeve 23 and the second locking sleeve 24 will not come out of the first strip-shaped through groove 6 and the third strip-shaped through groove 11, thereby ensuring the stability of the arrangement structure of the first transmission rod 12.

[0043] A first mounting base 15 is fitted around the first transmission rod 12. The first mounting base 15 is rotatably engaged with the first transmission rod 12 via a mounting bearing ring. The first mounting base 15 is arranged between the first turntable 4 and the third turntable 8, and its top surface is planar. A first right-angle seat 17 is provided on the outer side of the support frame 2 near the first turntable 4. The bottom end of the vertical plate of the first right-angle seat 17 is arranged between the first turntable 4 and the third turntable 8. A horizontally arranged first guide rail 27 is fixedly installed at the bottom end of the vertical plate of the first right-angle seat 17. The first guide rail 27 is arranged between the first turntable 4 and the third turntable 8 and is perpendicular to the first transmission rod 12. A first slide block 29 is fixedly installed on the top of the first mounting base 15. The first slide block 29 is slidably engaged with the first guide rail 27. Thus, when the first turntable 4 and the third turntable 8 rotate together, the first slide block 29 slides linearly along the first guide rail 27, thereby adjusting the arrangement height of the horizontal plate of the first right-angle seat 17.

[0044] A second support base 36 is provided on the outer side of the fourth turntable 9, and the bottom of the second support base 36 is firmly connected to the base platform of the base 1. A first support shaft 37 is installed on the outer surface of the fourth turntable 9. The periphery of the first support shaft 37 is rotatably engaged with the second support base 36 through a bearing ring, thereby providing a stable support structure for the rotation of the fourth turntable 9. A horizontally arranged second transmission rod 14 is provided between the second turntable 5 and the fourth turntable 9. A third locking sleeve 25 and a fourth locking sleeve 26 are respectively fitted at both ends of the second transmission rod 14. The third locking sleeve 25 and the fourth locking sleeve 26 are respectively arranged in the second strip-shaped through groove 7 and the fourth strip-shaped through groove 13. The outer sides of the third locking sleeve 25 and the fourth locking sleeve 26 have the same stepped structure, which facilitates engagement with the second strip-shaped through groove 7 and the fourth strip-shaped through groove 13. The third locking sleeve 25 and the fourth locking sleeve 26 can be firmly connected to the second turntable 5 and the fourth turntable 9 respectively by mounting bolts. A second right-angle seat 18 is provided on the outer side of the support frame 2 near the second turntable 5. The bottom end of the vertical plate of the second right-angle seat 18 is arranged between the second turntable 5 and the fourth turntable 9. A horizontally arranged second guide rail 28 is fixedly installed at the bottom end of the vertical plate of the second right-angle seat 18. The second guide rail 28 is arranged between the second turntable 5 and the fourth turntable 9 and is perpendicular to the second transmission rod 14. A second mounting base 16 is fitted around the second transmission rod 14. The interior of the second mounting base 16 is slidably engaged with the second transmission rod 14 through a bearing ring. The top of the second mounting base 16 is a flat plate structure. A second slide block 30 is fixedly installed on the top of the second mounting base 16. The second slide block 30 is slidably engaged with the second guide rail 28. Thus, when the third turntable 8 and the fourth turntable 9 rotate together, the second slide block 30 slides linearly along the second guide rail 28, thereby adjusting the arrangement height of the horizontal plate of the second right-angle seat 18.

[0045] The support frame 2 is equipped with vertically arranged third guide rails 31 and fourth guide rails 32 on both sides. Two third guide rails 31 are symmetrically arranged and positioned on the side of the support frame 2 closest to the first turntable 4. Each third guide rail 31 has a slidably mounted third slide block 33, which is securely connected to the inner side of the vertical plate of the first right-angle seat 17. The fourth guide rails 32 are parallel to and symmetrically distributed with the third guide rails 31, and are positioned on the side of the support frame 2 closest to the second turntable 5. Each fourth guide rail 32 has a slidably mounted fourth slide block 34, which is securely connected to the inner side of the vertical plate of the second right-angle seat 18. This cooperative structure provides linear sliding constraints and support for the first right-angle seat 17 and the second right-angle seat 18, respectively, thus improving the functional stability of the device.

[0046] In addition, a first spring return cylinder 51 and a second spring return cylinder 52 are respectively provided on both sides of the support frame 2. Two sets of the first spring return cylinder 51 and the second spring return cylinder 52 are provided, so that they are arranged at the four corners above the base platform of the base 1. The bottom of the cylinder body of the first spring return cylinder 51 and the second spring return cylinder 52 are both firmly connected to the base platform of the base 1. The first spring return cylinder 51 and the second spring return cylinder 52 are arranged symmetrically. The piston rods of the first spring return cylinder 51 and the second spring return cylinder 52 are both arranged vertically upwards. The top of the first spring return cylinder 51 is firmly connected to the first right-angle seat 17, and the top of the piston rod of the second spring return cylinder 52 is firmly connected to the second right-angle seat 18. By setting up a cooperative structure for the first spring reset cylinder 51 and the second spring reset cylinder 52, when the first spring reset cylinder 51 and the second spring reset cylinder 52 are subjected to an upward vertical force, their piston rods can slide accordingly. When the external force disappears, the elastic force of the springs in the first spring reset cylinder 51 and the second spring reset cylinder 52 will cause the piston rods to automatically return to their initial positions, thereby completing the reset action and effectively supporting the first right-angle seat 17 and the second right-angle seat 18.

[0047] A horizontal drive assembly 19 is provided on the horizontal plate at the top of both the first right-angle seat 17 and the second right-angle seat 18. Taking the horizontal drive assembly 19 above the first right-angle seat 17 as an example, the structure is described as follows: The horizontal drive assembly 19 includes a support plate 1901 that is fastened to the first right-angle seat 17. There are two support plates 1901, which are in a gantry structure. A stabilizing frame 1902 and a fifth guide rail 1903 are fixedly installed on the inner side of each support plate 1901. A horizontally arranged electric push rod 1904 is fixedly installed in each stabilizing frame 1902. The outer shell of the electric push rod 1904 is fastened to the stabilizing frame 1902, and the electric push rod 1904 is arranged above the support plate 1901. A bracket 1905 is fixedly connected to the end of the stroke rod of the electric push rod 1904. A fifth slide 1906 is fastened to the bottom of the bracket 1905. The fifth slide 1906 slides in cooperation with the fifth guide rail 1903.

[0048] An adjusting plate 1907 is fastened to the inner sides of the two fifth slide blocks 1906. An electric slide rail 1908 is fixedly installed on the outer side of the adjusting plate 1907. The electric slide rail 1908 is arranged horizontally and perpendicular to the electric push rod 1904. A sixth slide block 1909 and a seventh slide block 1910 are slidably installed on the electric slide rail 1908. The sixth slide block 1909 and the seventh slide block 1910 can move towards each other or away from each other on the electric slide rail 1908. The sixth slide 1909 and the seventh slide 1910 are respectively fastened to the first plate 20 and the second plate 21. The bottom of the first plate 20 and the second plate 21 are respectively fixedly installed with a first communication bus connector 45 and a second communication bus connector 46. The first plate 20 and the second plate 21 are respectively fixedly installed with a first pad 47 and a second pad 48. The top of the first pad 47 and the second pad 48 are respectively fixedly installed with a first right-angled rod 49 and a second right-angled rod 50. Voltage test rods 22 are fixedly installed on the outer ends of both the first right-angled rod 49 and the second right-angled rod 50. The ends of the voltage test rods 22 can perform real-time pass-through voltage tests on the DC resistance elements of the voltage reactive power generator. The first right-angled rod 49 and the second right-angled rod 50 are both hollow structures, facilitating the introduction of communication wires, thereby enabling the two voltage test rods 22 to be electrically connected to the first communication bus connector 45 and the second communication bus connector 46 respectively. The first communication bus connector 45 and the second communication bus connector 46 can be electrically connected to external control equipment via communication cables, thereby transmitting the DC resistance element parameter values ​​measured by the two voltage test rods 22 to the terminal.

[0049] The working principle of this invention is as follows:

[0050] When the voltage reactive power generator malfunctions, troubleshooting personnel can place this device on the side of the voltage reactive power generator, with the first right-angle bracket 17 positioned closer to the main discharge resistor and the second right-angle bracket 18 positioned on the side of the auxiliary discharge resistor.

[0051] By activating the induction motor 42, the first bevel gear 43 and the second bevel gear 44 are engaged in transmission, causing the drive shaft 10 to drive the third turntable 8 and the first turntable 4 to rotate together. During the rotation of the first turntable 4 and the third turntable 8, the arrangement height of the first transmission rod 12 between the first turntable 4 and the third turntable 8 is periodically adjusted in reciprocating motion, causing the first mounting base 15 to rotate along the outer wall of the first transmission rod 12. Due to the limiting effect of the first slide 29 and the third slide 33, the first mounting base 15 moves along the linear direction of the first guide rail 27, thereby adjusting the arrangement height of the first right-angle seat 17. At the same time, due to the linkage structure of the rotating rod 3, the second turntable 5 and the fourth turntable 9 rotate together, and through the cooperation structure of the second transmission rod 14 and the second mounting base 16, the arrangement height of the second right-angle seat 18 is adjusted, so that the lifting progress of the first right-angle seat 17 and the second right-angle seat 18 is opposite.

[0052] By controlling the electric push rod 1904, the test end of the voltage test rod 22 is gradually brought closer to the main discharge resistor and the auxiliary discharge resistor. By controlling the electric slide rail 1908, the distance between the two electric push rods 1904 is adjusted so that the test end of the electric push rod 1904 contacts the wiring terminals of the main discharge resistor and the auxiliary discharge resistor. The measured DC resistance element parameter values ​​are then transmitted to the terminal equipment through the first communication bus connector 45 and the second communication bus connector 46, thereby identifying the fault degree of each main discharge resistor and auxiliary discharge resistor, which facilitates troubleshooting and repair work by troubleshooting personnel.

[0053] Compared with the prior art, the voltage reactive power generator fault testing device designed in this invention significantly improves the safety and efficiency of the testing process through a clever mechanical linkage structure, effectively overcoming the high risk and low efficiency of traditional manual testing.

[0054] Its core beneficial effects are reflected in:

[0055] First, this device completely eliminates the need for personnel to directly contact high-voltage components. Operators can control the entire mechanism remotely. The mechanical transmission system, composed of various turntables, transmission rods, right-angle seats, mounting bases, and horizontal drive components, precisely translates the driving action into complex coordinated movements of the two voltage test rods 22 in the horizontal and vertical directions, enabling them to automatically position and contact the contact points of the DC resistance element. Personnel remain completely away from live areas throughout the process, thoroughly avoiding fatal risks such as electric shock and arc flashover, and resolving operational safety hazards in situations where residual high voltage results from discharge resistor failure or in confined cabinet space.

[0056] Secondly, the sliding cooperation between the strip grooves on each turntable and the transmission rod, the mounting base, and the right-angle base constitutes a multi-degree-of-freedom motion mechanism. Under the premise of driving a single input shaft (drive shaft 10), through the linkage of the first turntable 4, the second turntable 5, the third turntable 8, the fourth turntable 9, the first transmission rod 12, and the second transmission rod 14, the horizontal distance and vertical height of the two voltage test rods 22 can be adjusted efficiently and in a coordinated manner, and the main discharge resistor and the auxiliary discharge resistor at different heights can be quickly aligned, which greatly saves the time of repeated manual positioning and adjustment.

[0057] Finally, the structural design of this device greatly simplifies the troubleshooting test preparation and operation process; there is no need to perform complicated manual safety isolation procedures, and the device itself is designed to allow for more flexible or shorter test windows, which helps to reduce the overall downtime for equipment maintenance.

[0058] In summary, this device utilizes a sophisticated mechanical transmission system to replace high-risk manual operation near electrical sources, achieving remote, automatic, and precise positioning and contact of the voltage test rod 22. This not only fundamentally ensures the personal safety of operators and eliminates electric shock accidents, but also significantly shortens testing time, improves testing efficiency and data reliability through automated positioning and simplified processes, providing a safer and more efficient solution for fault testing of voltage reactive power generators.

[0059] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A voltage reactive generator fault testing device comprising a base (1), characterized in that, The middle part of the base (1) is fixedly provided with a bearing frame (2), the bearing frame (2) is provided with a rotatingly matched rotating rod (3), the both ends of the rotating rod (3) are fixedly provided with a first rotating disc (4) and a second rotating disc (5) respectively, the first rotating disc (4) and the second rotating disc (5) are respectively provided with a first strip-shaped through slot (6) and a second strip-shaped through slot (7), the outer sides of the first rotating disc (4) and the second rotating disc (5) are respectively provided with a third rotating disc (8) and a fourth rotating disc (9), the outer side of the third rotating disc (8) is fixedly connected with a driving shaft (10), the third rotating disc (8) is provided with a third strip-shaped through slot (11), the first rotating disc (4) and the third rotating disc (8) are provided with a first transmission rod (12), the both ends of the first transmission rod (12) are arranged in the first strip-shaped through slot (6) and the third strip-shaped through slot (11) respectively, the fourth rotating disc (9) is provided with a fourth strip-shaped through slot (13), the second rotating disc (5) and the fourth rotating disc (9) are provided with a second transmission rod (14), the both ends of the second transmission rod (14) are arranged in the second strip-shaped through slot (7) and the fourth strip-shaped through slot (13) respectively, the outer peripheries of the first transmission rod (12) and the second transmission rod (14) are respectively provided with a first sleeving seat (15) and a second sleeving seat (16) which are rotatingly matched with the first transmission rod (12) and the second transmission rod (14) respectively, the first rotating disc (4) and the third rotating disc (8) are provided with a first right-angle seat (17), the second rotating disc (5) and the fourth rotating disc (9) are provided with a second right-angle seat (18), the bottom ends of the first right-angle seat (17) and the second right-angle seat (18) are horizontally and linearly slidably matched with the first sleeving seat (15) and the second sleeving seat (16) respectively, the inner sides of the first right-angle seat (17) and the second right-angle seat (18) are vertically and linearly slidably matched with the both sides of the bearing frame (2) respectively, the top parts of the first right-angle seat (17) and the second right-angle seat (18) are provided with a horizontal driving assembly (19), the side parts of the horizontal driving assembly (19) are provided with a first flat plate (20) and a second flat plate (21), the first flat plate (20) and the second flat plate (21) are fixedly provided with a voltage test rod (22), and the two voltage test rods (22) are used for testing the direct-current resistance element of the voltage and reactive power generator.

2. A voltage var generator fault testing device according to claim 1, wherein, The first strip-shaped through slot (6) and the second strip-shaped through slot (7) are respectively provided in the radial direction outward from the center of the first rotating disc (4) and the second rotating disc (5), the first strip-shaped through slot (6) and the second strip-shaped through slot (7) are rotationally symmetrical with the rotating rod (3) as the reference, the first strip-shaped through slot (6) and the third strip-shaped through slot (11) are symmetrically arranged in overlap, and the second strip-shaped through slot (7) and the fourth strip-shaped through slot (13) are symmetrically arranged in overlap.

3. A voltage var generator fault testing apparatus as recited in claim 1, wherein, The inner groove faces of the first, second, third and fourth strip-shaped through grooves (6, 7, 11, 13) are straight ladder-shaped structures, both ends of the first transmission rod (12) are respectively sleeved with a first clamping block sleeve (23) and a second clamping block sleeve (24), the outer walls of the first and second clamping block sleeves (23, 24) are respectively clamped with the inner groove faces of the first and third strip-shaped through grooves (6, 11), both ends of the second transmission rod (14) are respectively sleeved with a third clamping block sleeve (25) and a fourth clamping block sleeve (26), the outer walls of the third and fourth clamping block sleeves (25, 26) are respectively clamped with the inner groove faces of the second and fourth strip-shaped through grooves (7, 13).

4. The voltage var generator fault testing apparatus of claim 1, wherein, The bottom ends of the first and second right-angle seats (17, 18) are respectively fixedly installed with first and second guide rails (27, 28), the first and second guide rails (27, 28) are both horizontally arranged and parallel to each other, the top portions of the first and second sleeving seats (15, 16) are respectively fixedly installed with first and second sliding seats (29, 30), the first and second sliding seats (29, 30) are respectively in sliding fit with the first and second guide rails (27, 28).

5. The voltage var generator fault testing apparatus of claim 1, wherein, The two sides of the bearing frame (2) are respectively fixedly installed with third and fourth guide rails (31, 32) arranged vertically, the third and fourth guide rails (31, 32) are parallel to each other, the third and fourth guide rails (31, 32) are respectively slidably installed with third and fourth sliding seats (33, 34), the third and fourth sliding seats (33, 34) are respectively fixedly connected with the inner sides of the first and second right-angle seats (17, 18).

6. The voltage var generator fault testing apparatus of claim 1, wherein, The base (1) is fixedly installed with first and second support seats (35, 36), the first and second support seats (35, 36) are respectively arranged outside the third and fourth rotating discs (8, 9), the driving shaft (10) is in rotary fit with the first support seat (35), the outer disc surface of the fourth rotating disc (9) is installed with a first support shaft (37), the first support shaft (37) is in rotary fit with the second support seat (36); the outer side of the first support seat (35) is provided with a third support seat (38), the third support seat (38) is fixedly connected with the base (1), the third support seat (38) is provided with a second support shaft (39) in rotary fit, and the second support shaft (39) and the driving shaft (10) are drivingly connected through a shaft connecting rod (40).

7. A voltage var generator fault testing apparatus as recited in claim 6 wherein, The top of the first support base (35) and the third support base (38) is fixedly installed with a same top plate (41), the top plate (41) is fixedly installed with an induction motor (42), the output shaft of the induction motor (42) is arranged vertically downward, the output shaft of the induction motor (42) is tightly sleeved with a first bevel gear (43), the upper part of the driving shaft (10) is tightly sleeved with a second bevel gear (44), the first bevel gear (43) and the second bevel gear (44) are arranged between the first support base (35) and the third support base (38), and the first bevel gear (43) and the second bevel gear (44) are in right-angle engagement transmission.

8. The voltage var generator fault testing apparatus of claim 1, wherein, The horizontal driving assembly (19) comprises a support plate (1901) which is tightly connected with the first right-angle seat (17) and the second right-angle seat (18), the inner side of the support plate (1901) is fixedly installed with a stabilizing frame (1902) and a fifth guide rail (1903), the stabilizing frame (1902) is fixedly installed with a horizontally arranged electric push rod (1904) in the inside, the electric push rod (1904) is arranged above the support plate (1901), the stroke rod end of the electric push rod (1904) is fixedly connected with a support (1905), the bottom of the support (1905) is tightly connected with a fifth sliding seat (1906), the fifth sliding seat (1906) is in sliding fit with the fifth guide rail (1903), the side of the fifth sliding seat (1906) is tightly connected with an adjusting plate (1907), the first flat plate (20) and the second flat plate (21) are symmetrically arranged on the outside of the adjusting plate (1907), and two voltage test rods (22) are arranged above the first flat plate (20) and the second flat plate (21).

9. A voltage var generator fault testing apparatus as recited in claim 8, wherein, The outside of the adjusting plate (1907) is fixedly installed with an electric sliding rail (1908), the electric sliding rail (1908) is slidably installed with a sixth sliding seat (1909) and a seventh sliding seat (1910), the sixth sliding seat (1909) and the seventh sliding seat (1910) are tightly connected with the first flat plate (20) and the second flat plate (21) respectively, the bottom of the first flat plate (20) and the second flat plate (21) is fixedly installed with a first communication bus joint (45) and a second communication bus joint (46) respectively, the first flat plate (20) and the second flat plate (21) are fixedly installed with a first cushion block (47) and a second cushion block (48) respectively, the top of the first cushion block (47) and the second cushion block (48) is fixedly installed with a first right-angle bent rod (49) and a second right-angle bent rod (50) respectively, two voltage test rods (22) are fixedly installed on the side plate surfaces of the first right-angle bent rod (49) and the second right-angle bent rod (50) respectively, and the two voltage test rods (22) are electrically connected with the first communication bus joint (45) and the second communication bus joint (46) respectively.

10. The voltage var generator fault testing apparatus of claim 1, wherein, The both sides of the bearing frame (2) are respectively provided with a first spring return air cylinder (51) and a second spring return air cylinder (52), the bottom of the cylinder body of the first spring return air cylinder (51) and the second spring return air cylinder (52) is fastened and connected with the base (1), the first spring return air cylinder (51) and the second spring return air cylinder (52) are symmetrically arranged, the top end of the piston rod of the first spring return air cylinder (51) is fastened and connected with the first right-angle seat (17), and the top end of the piston rod of the second spring return air cylinder (52) is fastened and connected with the second right-angle seat (18).

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