Voltage reactive generator fault testing device

Abstract

The invention relates to the technical field of voltage reactive generator testing, in particular to a voltage reactive generator fault testing device which comprises a base, and a first rotating disc and a second rotating disc are arranged at the two ends of a rotating rod. A third turntable and a fourth turntable are arranged on the outer sides of the first turntable and the second turntable, a first transmission rod is arranged between the first turntable and the third turntable, a second transmission rod is arranged between the second turntable and the fourth turntable, a first right-angle seat is arranged between the first turntable and the third turntable, and a second right-angle seat is arranged between the second turntable and the fourth turntable; horizontal driving assemblies are arranged at the tops of the first right-angle seat and the second right-angle seat, a first flat plate and a second flat plate are arranged at the side parts of the horizontal driving assemblies, and voltage testing rods are arranged on the first flat plate and the second flat plate. According to the invention, the electric shock risk in the fault test operation is reduced, the hidden danger of human body electric shock is eliminated, the operation process is simplified, the test efficiency is greatly improved, and a safe and efficient solution is provided for the fault test operation.

Description

Technical Field

[0001] The invention relates to the technical field of voltage and reactive power generator testing, and in particular discloses a voltage and reactive power generator fault testing device. Background Art

[0002] A voltage-var generator (SVG) is a power electronic device that dynamically compensates for grid reactive power by precisely controlling the AC output voltage. Its core functions are to maintain voltage stability, improve power factor, and enhance grid performance. On the DC side of the SVG, DC link capacitors store energy and stabilize the bus voltage, while parallel DC resistors perform a crucial supporting role. The grading resistors ensure voltage balance across the series capacitor bank, preventing single-cell overvoltage breakdown due to uneven voltage distribution. The discharge resistors provide a safe and reliable energy discharge path for the capacitors after equipment shutdown, eliminating the risk of residual high-voltage electric shock.

[0003] Most voltage-var generators are equipped with multiple groups of vertically arranged DC resistor elements. Each group typically has two DC resistor elements. One is a main discharge resistor, connected in parallel with the DC capacitor via a contactor to quickly discharge the capacitor energy during shutdown. The other is an auxiliary discharge resistor, connected in series with the main discharge resistor. Its main function is to absorb high-frequency oscillation energy and suppress resonance caused by switching action or parasitic parameters. The main and auxiliary discharge resistors are arranged in an upper and lower spacing, 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 structure facilitates heat dissipation from the main and auxiliary discharge resistors.

[0004] At present, when a voltage reactive generator fails, equipment maintenance personnel need to hold relevant voltage testing equipment to perform voltage detection on the main discharge resistor and the auxiliary discharge resistor; the utility model with announcement number CN217332653U discloses a portable SVG module tester. Equipment maintenance personnel can hold the tester in the above-mentioned prior art and approach the main discharge resistor and the auxiliary discharge resistor to obtain key voltage parameters, thereby determining whether the main discharge resistor and the auxiliary discharge resistor are faulty.

[0005] When equipment maintenance personnel perform the above-mentioned troubleshooting operations, their manual detection of the voltage value of the SVG DC-side resistor element has significant safety and efficiency disadvantages. Specifically: First, operators need to directly contact the high-voltage live area, facing the risk of fatal 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 the insulating tool can cause arc flash or personal injury; at the same time, operations in narrow cabinets can easily cause tools to slip and cause short circuit explosions, and repetitive close-range detection exposes personnel to strong electromagnetic fields for a long time. Secondly, this method requires the equipment to be shut down and cumbersome safety isolation procedures to be executed, which seriously extends the maintenance window; manual point-by-point measurement is time-consuming and labor-intensive, and can only obtain static data at discrete time points, and cannot capture anomalies under dynamic working conditions. In summary, the troubleshooting methods of existing technologies can neither guarantee the inherent safety of personnel nor are they efficient and have limited detection effects. They have become a technical bottleneck restricting the reliable operation of equipment. Summary of the Invention

[0006] Aiming at the problems of high risk of electric shock and low testing efficiency in the current troubleshooting process of voltage and reactive power generators, the present invention provides a voltage and reactive power generator fault testing device.

[0007] To solve the above problems, the present invention provides the following technical solutions: The cam is secured to the chassis and has a first end for securing the first and second members of the cam, the second end for securing the first and second members of the cam being secured to the chassis. Arranged in the second strip through slot and the fourth strip through slot; the periphery of the first transmission rod and the second transmission rod are respectively fitted with a first fitting seat and a second fitting seat that rotate therewith, a first right-angle seat is provided between the first turntable and the third turntable, and a second right-angle seat is provided between the second turntable and the fourth turntable, the bottom ends of the first right-angle seat and the second right-angle seat are respectively fitted with the first fitting seat and the second fitting seat for horizontal linear sliding, and the inner sides of the first right-angle seat and the second right-angle seat are respectively fitted with the two sides of the support frame for vertical linear sliding; the tops of the first right-angle seat and the second right-angle seat are both provided with horizontal drive components, and the sides of the horizontal drive components are equipped with a first flat plate and a second flat plate, and voltage test rods are fixedly installed on the first flat plate and the second flat plate, and the two voltage test rods are used to test the DC resistance elements of the voltage reactive generator.

[0008] Preferably, the first strip through groove and the second strip through groove are respectively arranged in straight lines radiating outward from the center of the first turntable and the second turntable, and the first strip through groove and the second strip through groove are rotationally symmetrical 180° with the rotating rod as the reference, the first strip through groove and the third strip through groove are arranged symmetrically in an overlapping manner, and the second strip through groove and the fourth strip through groove are arranged symmetrically in an overlapping manner.

[0009] Preferably, the inner groove surfaces of the first strip through groove, the second strip through groove, the third strip through groove and the fourth strip through groove are all right-angled stepped structures, and the two ends of the first transmission rod are respectively provided with a first clamping block sleeve and a second clamping block sleeve, and the outer walls of the first clamping block sleeve and the second clamping block sleeve are respectively clamped with the inner groove surfaces of the first strip through groove and the third strip through groove, and the two ends of the second transmission rod are respectively provided with a third clamping block sleeve and a fourth clamping block sleeve, and the outer walls of the third clamping block sleeve and the fourth clamping block sleeve are respectively clamped with the inner groove surfaces of the second strip through groove and the fourth strip through groove.

[0010] Preferably, the bottom ends of the first right-angle seat and the second right-angle seat are respectively fixedly mounted with a first guide rail and a second guide rail, the first guide rail and the second guide rail are both horizontally arranged and arranged parallel to each other, and the tops of the first set seat and the second set seat are respectively fixedly mounted with a first slide seat and a second slide seat, the first slide seat and the second slide seat are respectively slidably matched with the first guide rail and the second guide rail.

[0011] Preferably, a third guide rail and a fourth guide rail are fixedly installed on both sides of the carrier frame, and the third guide rail is arranged parallel to the fourth guide rail. A third slide and a fourth slide are slidably installed on the third guide rail and the fourth guide rail, and the third slide and the fourth slide are fastened to the inner sides of the first right-angle seat and the second right-angle seat, respectively.

[0012] Preferably, a first support seat and a second support seat are fixedly installed on the base, and the first support seat and the second support seat are respectively arranged on the outside of the third turntable and the fourth turntable, the driving shaft is rotatably matched with the first support seat, and a first support shaft is installed on the outer disk surface of the fourth turntable, and the first support shaft is rotatably matched with the second support seat; a third support seat is provided on the outside of the first support seat, and the third support seat is fastened to the base, and a second support shaft for rotatable cooperation is provided in the third support seat, and the second support shaft and the driving shaft are connected via a coupling rod.

[0013] Preferably, the top of the first support seat and the top of the third support seat are jointly fixedly mounted with a same top plate, an induction motor is fixedly mounted on the top plate, the output shaft of the induction motor is arranged vertically downward, a first bevel gear is fastened onto the output shaft of the induction motor, a second bevel gear is fastened onto the upper portion of the drive shaft, the first bevel gear and the second bevel gear are both arranged between the first support seat and the third support seat, and the first bevel gear and the second bevel gear are engaged at right angles for transmission.

[0014] Preferably, the horizontal drive assembly includes a support plate fastened to the first right-angle seat and the second right-angle seat, a stabilizing frame 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 in the stabilizing frame, the electric push rod is arranged above the support plate, the end of the travel rod of the electric push rod is fixedly connected to the bracket, the bottom of the bracket is fastened to the fifth slide, the fifth slide is slidably engaged with the fifth guide rail, the side of the fifth slide is fastened to the adjustment plate, the first plate and the second plate are symmetrically arranged on the outside of the adjustment plate, and the two voltage test rods are arranged above the first plate and the second plate.

[0015] Preferably, an electric slide rail is fixedly installed on the outer side of the adjustment plate, and a sixth slide and a seventh slide are slidably installed on the electric slide rail. The sixth slide and the seventh slide are respectively fastened to the first flat plate and the second flat plate. The first communication bus connector and the second communication bus connector are respectively fixedly installed on the bottom of the first flat plate and the second flat plate. The first pad and the second pad are respectively fixedly installed on the first flat plate and the second flat plate. The first right-angle bend rod and the second right-angle bend rod are respectively fixedly installed on the top of the first pad and the second pad. Two voltage test rods are respectively fixedly installed on the side panels of the first right-angle bend rod and the second right-angle bend rod. The two voltage test rods are respectively electrically connected to the first communication bus connector and the second communication bus connector.

[0016] Preferably, a first spring return cylinder and a second spring return cylinder are respectively provided on both sides of the carrier frame, the bottoms of the cylinder bodies of the first spring return cylinder and the second spring return cylinder are both fastened to the base, the first spring return cylinder and the second spring return cylinder are symmetrically arranged, the top end of the piston rod of the first spring return cylinder is fastened to the first right-angle seat, and the top end of the piston rod of the second spring return cylinder is fastened to the second right-angle seat.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Through its insulated base and external deployment design, this invention allows operators to completely distance themselves from high-voltage areas. Contact measurements are performed using a voltage test rod that can be precisely controlled remotely. The mechanical transmission system, consisting of the turntable, transmission rod, right-angle seat, sleeve seat, and horizontal drive assembly, precisely converts the driving action into complex coordinated motion of the two voltage test rods in the horizontal and vertical directions. Combined with a spring-return cylinder, this ensures that the device can quickly and reliably disengage from the test point in an emergency. This invention fundamentally eliminates the risks of fatal electric shock, arc flash, and short-circuit explosion faced by maintenance personnel when directly contacting high-voltage components, significantly improving the inherent safety of the operation. 2. The present invention adopts a dual-test rod design. Driven by an induction motor and linked by the various turntables and transmission rods, the height and position of the test rods can be adjusted synchronously and quickly, enabling parallel measurement of the voltage values ​​of the main and auxiliary discharge resistors, significantly improving test efficiency. Furthermore, the horizontal drive assembly enables precise positioning and adjustment of the spacing and extension distance of the voltage test rods, facilitating real-time transmission of test data to the terminal via a communication bus. This not only greatly shortens detection time but also enables the capture of dynamic operating conditions and transient anomalies that cannot be captured manually. 3. The present invention ensures the synchronization and stability of the device operation by arranging a symmetrically arranged first turntable, second turntable, third turntable, and fourth turntable, and cooperates with the bevel gear and coupling rod balancing transmission mechanism, thereby effectively reducing wear and improving durability. At the same time, the height and spacing of the voltage test rods have adaptive adjustment capabilities and are compatible with different equipment layouts. Fault testing operations can be achieved by placing the device outside, eliminating the equipment shutdown and complex safety isolation process required by the manual testing method in the existing technology, greatly shortening the maintenance window, and reducing the requirements for personnel skills and overall maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive efforts. Figure 1 It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the installation structure of the first right-angle seat and the second right-angle seat of the present invention; Figure 3 Schematic diagram of the installation structure of the first turntable and the second turntable of the present invention Figure 1 ; Figure 4 Schematic diagram of the installation structure of the first turntable and the second turntable of the present invention Figure 2 ; Figure 5 This is a schematic diagram of the coordinated installation structure of the first turntable, the second turntable, the third turntable, and the fourth turntable of the present invention; Figure 6 This is a schematic diagram of the installation structure of the first set seat of the present invention; Figure 7 This is a schematic diagram of the first strip-shaped through-groove structure of the present invention; Figure 8 This is a schematic diagram of the installation structure of the second set seat of the present invention; Figure 9 This is a schematic diagram of the second strip-shaped through-groove structure of the present invention; Figure 10 This is a schematic diagram of the induction motor installation structure of the present invention; Figure 11 Schematic diagram of the mounting structure of the first bevel gear and the second bevel gear of the present invention Figure 12 It is a schematic structural diagram of the horizontal drive assembly of the present invention; Figure 13 This is a schematic diagram of the voltage test rod installation structure of the present invention; In the figure: 1. Base, 2. Carrying frame, 3. Rotating rod, 4. First turntable, 5. Second turntable, 6. First strip slot, 7. Second strip slot, 8. Third turntable, 9. Fourth turntable, 10. Drive shaft, 11. Third strip slot, 12. First transmission rod, 13. Fourth strip slot, 14. Second transmission rod, 15. First set seat, 16. Second set seat, 17. First right-angle seat, 18. Second right-angle seat, 19. Horizontal drive assembly, 1901. Support plate, 1902. Stabilizing frame, 1903. Fifth guide rail, 1904. Electric push rod, 1905. Bracket, 1906. Fifth slide, 1907. Adjustment plate, 1908. Electric slide rail, 1909. Sixth slide, 1910. Seventh slide, 20. First plate, 21. Second plate, 22. Voltage Test rod, 23. First clamping block sleeve, 24. Second clamping block sleeve, 25. Third clamping block sleeve, 26. Fourth clamping block sleeve, 27. First guide rail, 28. Second guide rail, 29. First slide, 30. Second slide, 31. Third guide rail, 32. Fourth guide rail, 33. Third slide, 34. Fourth slide, 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 DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below 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 making creative work are within the scope of protection of the present invention.

[0020] This specific embodiment provides a voltage and reactive power generator fault testing device, such as Figures 1-13 As shown, it includes a base 1, which is composed of a bottom platform and an outer frame. The outer frame can be made of insulating material. A supporting frame 2 is fixedly installed in the middle of the bottom platform of the base 1. The supporting frame 2 is composed of two longitudinal beams on both sides and multiple horizontal beams arranged vertically inside. The bottoms of the two longitudinal beams on both sides of the supporting frame 2 are both firmly connected to the bottom platform of the base 1, and both longitudinal beams are arranged vertically. A rotating rod 3 is rotatably installed in the lowest horizontal beam of the supporting frame 2. The outer periphery of the rotating rod 3 is equipped with a bearing ring to rotate with the supporting frame 2.

[0021] A first turntable 4 is fixedly mounted on one end of the rotating rod 3, and a second turntable 5 is fixedly mounted on the other end. The first and second turntables 4, 5 are symmetrically arranged on either side of the carrier frame 2, and are both arranged vertically. The first and second turntables 4, 5 are both disc-shaped structures, and the ends of the rotating rod 3 are respectively fastened to the center points of the first and second turntables 4, 5. A third turntable 8 is disposed outside the first turntable 4, and a fourth turntable 9 is disposed outside the second turntable 5. The third and fourth turntables 8, 9 are symmetrically arranged. The first turntable 4 and the third turntable 8 are respectively provided with a first strip through groove 6 and a third strip through groove 11, and the first strip through groove 6 and the third strip through groove 11 are respectively arranged in a straight line radiating outward from the center of the first turntable 4 and the third turntable 8; the second turntable 5 and the fourth turntable 9 are respectively provided with a second strip through groove 7 and a fourth strip through groove 13, and the second strip through groove 7 and the fourth strip through groove 13 are respectively arranged in a straight line radiating outward from the center of the second turntable 5 and the fourth turntable 9; the above-mentioned first strip through groove 6 and the third strip through groove 11 are arranged symmetrically in an overlapping manner, and the second strip through groove 7 and the fourth strip through groove 13 are arranged symmetrically in an overlapping manner; at the same time, the first strip through groove 6 and the second strip through groove 7 are rotationally symmetrical 180° with the rotating rod 3 as the reference, so that the first strip through groove and the second strip through groove 7 are arranged at different heights except in the horizontal state.

[0022] A driving shaft 10 is fixedly connected to the outer disk surface of the third turntable 8, and the inner end of the driving shaft 10 is fastened to the center of the third turntable 8; the outer side of the third turntable 8 is sequentially provided with a first support seat 35 and a third support seat 38, and the first support seat 35 and the third support seat 38 are both fastened to the top surface of the bottom platform of the base 1; the outer wall of the driving shaft 10 is rotatably matched with the first support seat 35 by installing a bearing ring.

[0023] The top of the first support seat 35 and the third support seat 38 are jointly fixedly mounted with a same top plate 41, and an induction motor 42 is fixedly mounted on the top plate 41, and the output shaft of the induction motor 42 is arranged vertically downward, and the output shaft end of the induction motor 42 is arranged between the first support seat 35 and the third support seat 38, and the output shaft end of the induction motor 42 is fastened with a first bevel gear 43, and the outer end of the drive shaft 10 is fastened with a second bevel gear 44, and the first bevel gear 43 and the second bevel gear 44 are both arranged between the first support seat 35 and the third support seat 38, and the first bevel gear 43 and the second bevel gear 44 are engaged at right angles for transmission; thereby, the drive shaft 10 is driven by the induction motor 42 to rotate at a uniform speed. Among them, a second support shaft 39 is rotatably installed in the third support seat 38, and the outer periphery of the second support shaft 39 is rotatably matched with the third support seat 38 by installing a bearing ring, and the second support shaft 39 is arranged at the same height as the drive shaft 10; and the second support shaft 39 is connected to the drive shaft 10 through 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 of the first bevel gear 43 and the second bevel gear 44, thereby improving the durability of the device.

[0024] A first transmission rod 12 is provided between the first turntable 4 and the third turntable 8, and the first transmission rod 12 is arranged horizontally; the two ends of the first transmission rod 12 are respectively provided with a first block sleeve 23 and a second block sleeve 24, the first block sleeve 23 is arranged in the first strip through groove 6, and the second block sleeve 24 is arranged in the third strip through groove 11, the inner groove surfaces of the first strip through groove 6 and the third strip through groove 11 are both right-angled stepped structures, and both sides of the first block sleeve 23 and the second block sleeve 24 are both stepped structures, so that the outer walls on both sides of the first block sleeve 23 and the second block sleeve 24 are fastened and clamped with the inner groove surfaces of the first strip through groove 6 and the third strip through groove 11, and the first block sleeve 23 and the second block sleeve 24 are fastened and connected to the first turntable 4 and the third turntable 8 respectively by fixing the mounting bolts. The first strip through groove 6 and the third strip through groove 11 of the above-mentioned right-angled stepped structure can be fixedly mounted with the first clamping block sleeve 23 and the second clamping block sleeve 24 respectively, and ensure that the first clamping block sleeve 23 and the second clamping block sleeve 24 will not fall out of the first strip through groove 6 and the third strip through groove 11, thereby ensuring the stability of the arrangement structure of the first transmission rod 12.

[0025] The first transmission rod 12 is provided with a first mounting seat 15 mounted on its periphery. The interior of the first mounting seat 15 is rotatably engaged with the first transmission rod 12 via a bearing ring. The first mounting seat 15 is arranged between the first turntable 4 and the third turntable 8, and the top surface of the first mounting seat 15 is a flat structure. The carrier 2 is provided with a first right-angle seat 17 on the outer side of the carrier 2 near the first turntable 4. The bottom end of the vertical plate portion 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 mounted on the bottom end of the vertical plate portion 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 arranged perpendicular to the first transmission rod 12. A first slide 29 is fixedly mounted on the top of the first mounting seat 15. The first slide 29 slidably engages with the first guide rail 27. When the first turntable 4 and the third turntable 8 rotate together, the first slide 29 slides linearly along the first guide rail 27, thereby adjusting the height of the horizontal plate portion of the first right-angle seat 17.

[0026] A second support seat 36 is provided on the outer side of the fourth turntable 9. The bottom of the second support seat 36 is fastened to the bottom of the base 1. A first support shaft 37 is mounted on the outer surface of the fourth turntable 9. The outer periphery of the first support shaft 37 is rotatably engaged with the second support seat 36 by means of a bearing ring, so that the first support shaft 37 provides 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. The ends of the second transmission rod 14 are respectively fitted with a third clamping block sleeve 25 and a fourth clamping block sleeve 26. The third clamping block sleeve 25 and the fourth clamping block sleeve 26 are respectively arranged in the second strip through groove 7 and the fourth strip through groove 13. The outer sides of the third clamping block sleeve 25 and the fourth clamping block sleeve 26 both have the same stepped structure, so as to facilitate the clamping engagement with the second strip through groove 7 and the fourth strip through groove 13. The third clamping block sleeve 25 and the fourth clamping block sleeve 26 can be fastened to the second turntable 5 and the fourth turntable 9 respectively by installing fixing bolts. A second right-angle seat 18 is provided on the outer side of the carrier 2 near the second turntable 5 side, and the bottom end of the vertical plate portion of the second right-angle seat 18 is arranged between the second turntable 5 and the fourth turntable 9, and the bottom end of the vertical plate portion of the second right-angle seat 18 is fixedly installed with a horizontally arranged second guide rail 28, which is arranged between the second turntable 5 and the fourth turntable 9 and is arranged perpendicular to the second transmission rod 14; the outer periphery of the second transmission rod 14 is sleeved with a second set seat 16, and the interior of the second set seat 16 is slidably matched with the second transmission rod 14 by installing a bearing ring; the top of the second set seat 16 is a flat plate structure, and the top of the second set seat 16 is fixedly installed with a second slide 30, and the second slide 30 is slidably matched with the second guide rail 28; so that when the third turntable 8 and the fourth turntable 9 rotate together, the second slide 30 slides linearly along the second guide rail 28 to adjust the arrangement height of the horizontal plate portion of the second right-angle seat 18.

[0027] A third guide rail 31 and a fourth guide rail 32 are fixedly mounted vertically on both sides of the carrier 2. Two third guide rails 31 are provided and arranged symmetrically. Each third guide rail 31 is positioned on the side of the carrier 2 closest to the first turntable 4. A third slide 33 is slidably mounted on each third guide rail 31, and the third slide 33 is securely connected to the inner side of the vertical plate portion of the first right-angle seat 17. The fourth guide rail 32 is parallel to and symmetrically distributed with the third guide rail 31. The fourth guide rail 32 is positioned on the side of the carrier 2 closest to the second turntable 5. A fourth slide 34 is slidably mounted on each fourth guide rail 32, and the fourth slide 34 is securely connected to the inner side of the vertical plate portion of the second right-angle seat 18. Through this mating structure, the third slide 33 and the fourth slide 34 provide linear sliding constraints and support for the first and second right-angle seats 17 and 18, respectively, thereby enhancing the functional stability of the device.

[0028] In addition, a first spring return cylinder 51 and a second spring return cylinder 52 are provided on both sides of the support frame 2, respectively. 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 of the base 1. The bottoms of the cylinder bodies of the first spring return cylinder 51 and the second spring return cylinder 52 are both tightly connected to the base of the base 1. The first spring return cylinder 51 and the second spring return cylinder 52 are arranged symmetrically, and the piston rods of the first spring return cylinder 51 and the second spring return cylinder 52 are both arranged vertically upward. The top end of the first spring return cylinder 51 is tightly connected to the first right-angle seat 17, and the top end of the piston rod of the second spring return cylinder 52 is tightly connected to the second right-angle seat 18. By providing a matching structure of the first spring return cylinder 51 and the second spring return cylinder 52, when the first spring return cylinder 51 and the second spring return cylinder 52 are subjected to a vertical upward external force, their piston rods can slide accordingly. When the external force disappears, the elastic force of the springs in the first spring return cylinder 51 and the second spring return cylinder 52 will automatically return the piston rods 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.

[0029] A horizontal drive assembly 19 is provided on the horizontal plate portion at the top of each of the first and second right-angle seats 17 and 18. The structure of the horizontal drive assembly 19 above the first right-angle seat 17 will be described as an example. The horizontal drive assembly 19 includes a support plate 1901 that is fastened to the first right-angle seat 17. Two support plates 1901 are provided, each having a gantry structure. A stabilizing frame 1902 and a fifth guide rail 1903 are fixedly mounted on the inner side of each support plate 1901. A horizontally arranged electric push rod 1904 is fixedly mounted within each stabilizing frame 1902. The housing 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. The end of the travel rod of the electric push rod 1904 is fixedly connected to a bracket 1905. A fifth slide 1906 is fastened to the bottom of the bracket 1905. The fifth slide 1906 slidably engages with the fifth guide rail 1903.

[0030] An adjustment plate 1907 is fastened to the inner side of the two fifth slides 1906. An electric slide rail 1908 is fixedly mounted on the outer side of the adjustment plate 1907. The electric slide rail 1908 is arranged horizontally and perpendicular to the electric push rod 1904. A sixth slide 1909 and a seventh slide 1910 are slidably mounted on the electric slide rail 1908. The sixth slide 1909 and the seventh slide 1910 can move toward 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 and second flat plates 20 and 21. A first communication bus connector 45 and a second communication bus connector 46 are fixedly mounted on the bottoms of the first and second flat plates 20 and 21, respectively. A first cushion block 47 and a second cushion block 48 are fixedly mounted on the tops of the first and second cushion blocks 47 and 48, respectively. A first right-angled bend rod 49 and a second right-angled bend rod 50 are fixedly mounted on the tops of the first and second cushion blocks 47 and 48, respectively. A voltage test rod 22 is fixedly mounted on the outer ends of the first and second right-angled bend rods 49 and 50. The ends of the voltage test rods 22 can perform a voltage pass test on the DC resistance element of the voltage reactive generator in real time. The first and second right-angled bend rods 49 and 50 are both hollow structures, making it easy to introduce communication wires, thereby electrically connecting the two voltage test rods 22 to the first and second communication bus connectors 45 and 46, respectively. The first communication bus connector 45 and the second communication bus connector 46 can be electrically connected to an external control device via a communication cable, thereby transmitting the DC resistance component parameter values ​​measured by the two voltage test rods 22 to the terminal.

[0031] The working principle of the present invention is: When the voltage-var generator fails, the troubleshooting personnel can place the device on the side of the voltage-var generator, so that the first right-angle seat 17 is arranged on the side close to the main discharge resistor and the second right-angle seat 18 is arranged on the side of the auxiliary discharge resistor.

[0032] By starting the induction motor 42, the first bevel gear 43 and the second bevel gear 44 are engaged, thereby 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 height of the first transmission rod 12 between the first turntable 4 and the third turntable 8 is periodically adjusted in accordance with the rotation, causing the first set seat 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 set seat 15 moves along the linear direction of the first guide rail 27, thereby adjusting the 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. Through the cooperation structure of the second transmission rod 14 and the second set seat 16, the 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 are opposite.

[0033] By controlling the electric push rod 1904, the test end of the voltage test rod 22 is gradually brought close to the main discharge resistor and the auxiliary discharge resistor, and 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 connection terminals of the main discharge resistor and the auxiliary discharge resistor, and the measured DC resistance element parameter values ​​are transmitted to the terminal device through the first communication bus connector 45 and the second communication bus connector 46, so as to identify the fault degree of each main discharge resistor and the auxiliary discharge resistor, thereby facilitating troubleshooting and maintenance work for troubleshooting personnel.

[0034] Compared with the existing technology, the voltage and reactive power generator fault testing device designed by the present invention significantly improves the safety and efficiency of the testing process through an ingenious mechanical linkage structure, and effectively overcomes the high risk and low efficiency disadvantages of traditional manual detection.

[0035] Its core beneficial effects are reflected in: 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, consisting of the turntable, transmission rod, right-angle seat, sleeve seat, and horizontal drive assembly, accurately converts the driving action into complex coordinated movement of the two voltage test rods 22 in the horizontal and vertical directions, enabling them to automatically locate and contact the contact points of the DC resistance element. Personnel stay away from live areas throughout the process, completely avoiding fatal risks such as electric shock and arc flash, and resolving operational safety hazards caused by residual high voltage due to discharge resistor failure or in cramped space within the cabinet.

[0036] Secondly, the sliding cooperation between the strip-shaped through grooves on each turntable of the device and the transmission rod, the set seat, and the right-angle seat 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 and the first transmission rod 12 and the second transmission rod 14, the horizontal spacing and vertical height of the two voltage test rods 22 can be efficiently and coordinately adjusted, and the main discharge resistor and the auxiliary discharge resistor at different heights can be quickly aligned, which greatly saves the time of manual repeated positioning and adjustment.

[0037] 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 design of the device itself may allow for more flexible or shorter testing windows, helping to reduce the overall downtime of the equipment for maintenance.

[0038] In summary, this device utilizes a sophisticated mechanical transmission system to replace high-risk manual proximity testing, achieving remote, automatic, and precise positioning and contact of the voltage test rod 22. This not only fundamentally ensures operator safety and eliminates electric shock accidents, but also significantly shortens test time, improves test efficiency, and improves data reliability through automated positioning and streamlined procedures, providing a safer and more efficient solution for fault testing of voltage and reactive power generators.

[0039] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one 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 present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A voltage and reactive power generator fault test device, comprising a base (1), characterized in that: A carrier frame (2) is fixedly mounted in the middle of the base (1), a rotating rod (3) is provided in the carrier frame (2), and a first turntable (4) and a second turntable (5) are fixedly mounted on both ends of the turntable (3), and a first strip-shaped through slot (6) and a second strip-shaped through slot (7) are respectively provided in the first turntable (4) and the second turntable (5); a third turntable (8) and a fourth turntable (9) are respectively provided on the outer sides of the first turntable (4) and the second turntable (5), and a driving shaft (10) is fixedly connected to the outer side of the third turntable (8). ), a third strip through slot (11) is provided on the third turntable (8), a first transmission rod (12) is provided between the first turntable (4) and the third turntable (8), and two ends of the first transmission rod (12) are respectively arranged in the first strip through slot (6) and the third strip through slot (11), a fourth strip through slot (13) is provided on the fourth turntable (9), a second transmission rod (14) is provided between the second turntable (5) and the fourth turntable (9), and two ends of the second transmission rod (14) are respectively arranged in the second strip through slot (7) and the fourth The first transmission rod (12) and the second transmission rod (14) are respectively provided with a first set seat (15) and a second set seat (16) which are rotatably matched therewith on their peripheries; a first right-angle seat (17) is provided between the first turntable (4) and the third turntable (8); a second right-angle seat (18) is provided between the second turntable (5) and the fourth turntable (9); the bottom ends of the first right-angle seat (17) and the second right-angle seat (18) are respectively horizontally linearly slidably matched with the first set seat (15) and the second set seat (16); The inner sides of the first right-angle seat (17) and the second right-angle seat (18) are respectively matched with the two sides of the support frame (2) in a vertical linear sliding manner; the tops of the first right-angle seat (17) and the second right-angle seat (18) are both provided with a horizontal drive assembly (19), and the sides of the horizontal drive assembly (19) are equipped with a first flat plate (20) and a second flat plate (21), and the first flat plate (20) and the second flat plate (21) are both fixedly mounted with voltage test rods (22), and the two voltage test rods (22) are used to test the DC resistance element of the voltage reactive generator.

2. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: The first strip through slot (6) and the second strip through slot (7) are respectively arranged in straight lines radiating outward from the center of the first turntable (4) and the second turntable (5); the first strip through slot (6) and the second strip through slot (7) are 180° rotationally symmetrical with respect to the rotating rod (3); the first strip through slot (6) and the third strip through slot (11) are arranged in an overlapping and symmetrical manner; and the second strip through slot (7) and the fourth strip through slot (13) are arranged in an overlapping and symmetrical manner.

3. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: The inner groove surfaces of the first strip through groove (6), the second strip through groove (7), the third strip through groove (11), and the fourth strip through groove (13) are all right-angled stepped structures. The first transmission rod (12) is respectively provided with a first clamping block sleeve (23) and a second clamping block sleeve (24) at both ends. The outer walls of the first clamping block sleeve (23) and the second clamping block sleeve (24) are respectively engaged with the inner groove surfaces of the first strip through groove (6) and the third strip through groove (11). The second transmission rod (14) is respectively provided with a third clamping block sleeve (25) and a fourth clamping block sleeve (26). The outer walls of the third clamping block sleeve (25) and the fourth clamping block sleeve (26) are respectively engaged with the inner groove surfaces of the second strip through groove (7) and the fourth strip through groove (13).

4. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: A first guide rail (27) and a second guide rail (28) are fixedly mounted on the bottom ends of the first right-angle seat (17) and the second right-angle seat (18), respectively. The first guide rail (27) and the second guide rail (28) are both horizontally arranged and arranged parallel to each other. A first slide seat (29) and a second slide seat (30) are fixedly mounted on the top ends of the first set seat (15) and the second set seat (16), respectively. The first slide seat (29) and the second slide seat (30) are slidably matched with the first guide rail (27) and the second guide rail (28), respectively.

5. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: A third guide rail (31) and a fourth guide rail (32) arranged vertically are fixedly mounted on both sides of the carrier frame (2). The third guide rail (31) and the fourth guide rail (32) are arranged in parallel. A third slide seat (33) and a fourth slide seat (34) are slidably mounted on the third guide rail (31) and the fourth guide rail (32). The third slide seat (33) and the fourth slide seat (34) are respectively fastened to the inner sides of the first right-angle seat (17) and the second right-angle seat (18).

6. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: A first support seat (35) and a second support seat (36) are fixedly mounted on the base (1). The first support seat (35) and the second support seat (36) are arranged on the outside of the third turntable (8) and the fourth turntable (9), respectively. The drive shaft (10) is rotatably engaged with the first support seat (35). A first support shaft (37) is mounted on the outer disk surface of the fourth turntable (9). The first support shaft (37) is rotatably engaged with the second support seat (36). A third support seat (38) is arranged on the outside of the first support seat (35). The third support seat (38) is fastened to the base (1). A second support shaft (39) is rotatably engaged with the third support seat (38). The second support shaft (39) is connected to the drive shaft (10) by a coupling rod (40).

7. A voltage and reactive power generator fault testing device according to claim 6, characterized in that: The top of the first support seat (35) and the top of the third support seat (38) are fixedly mounted with a 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 downward, a first bevel gear (43) is fastened onto the output shaft of the induction motor (42), a second bevel gear (44) is fastened onto the upper portion of the drive shaft (10), the first bevel gear (43) and the second bevel gear (44) are both arranged between the first support seat (35) and the third support seat (38), and the first bevel gear (43) and the second bevel gear (44) are meshed at right angles for transmission.

8. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: The horizontal drive assembly (19) includes a support plate (1901) that is fastened to the first right-angle seat (17) and the second right-angle seat (18); a stabilizing frame (1902) and a fifth guide rail (1903) are fixedly installed on the inner side of the support plate (1901); a horizontally arranged electric push rod (1904) is fixedly installed in the stabilizing frame (1902); the electric push rod (1904) is arranged above the support plate (1901); and the end of the travel rod of the electric push rod (1904) is fixedly connected to the first right-angle seat (17) and the second right-angle seat (18). A bracket (1905) is connected, the bottom of the bracket (1905) is fastened to a fifth slide (1906), the fifth slide (1906) is slidably matched with the fifth guide rail (1903), the side of the fifth slide (1906) is fastened to an adjustment plate (1907), the first flat plate (20) and the second flat plate (21) are symmetrically arranged on the outside of the adjustment plate (1907), and the two voltage test rods (22) are arranged above the first flat plate (20) and the second flat plate (21).

9. A voltage and reactive power generator fault testing device according to claim 8, characterized in that: An electric slide rail (1908) is fixedly installed on the outer side of the adjustment plate (1907), and a sixth slide seat (1909) and a seventh slide seat (1910) are slidably installed on the electric slide rail (1908). The sixth slide seat (1909) and the seventh slide seat (1910) are respectively fastened to the first flat plate (20) and the second flat plate (21). The bottoms of the first flat plate (20) and the second flat plate (21) are respectively fixedly installed with a first communication bus connector (45) and a second communication bus connector (46). The first flat plate (20) and the second flat plate (21) are respectively fixedly mounted with a first cushion block (47) and a second cushion block (48); the tops of the first cushion block (47) and the second cushion block (48) are respectively fixedly mounted with a first right-angle bent rod (49) and a second right-angle bent rod (50); two voltage test rods (22) are respectively fixedly mounted on the side panels of the first right-angle bent rod (49) and the second right-angle bent rod (50); the two voltage test rods (22) are respectively electrically connected to the first communication bus connector (45) and the second communication bus connector (46).

10. A voltage and reactive power generator fault testing device according to claim 1, characterized in that: A first spring return cylinder (51) and a second spring return cylinder (52) are respectively provided on both sides of the carrier (2); the bottoms of the cylinder bodies of the first spring return cylinder (51) and the second spring return cylinder (52) are both fastened to the base (1); the first spring return cylinder (51) and the second spring return cylinder (52) are symmetrically arranged; the top end of the piston rod of the first spring return cylinder (51) is fastened to the first right-angle seat (17); and the top end of the piston rod of the second spring return cylinder (52) is fastened to the second right-angle seat (18).

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