An emergency power failure protection device for a high-voltage reactive power compensator

Abstract

This invention relates to an emergency power outage protection device for high-voltage reactive power compensators, specifically in the field of emergency protection technology for high-voltage reactive power compensators. It includes a frame, a platform with symmetrically arranged first vertical plates fixedly mounted on both sides, a first receiving plate on each first vertical plate, a second receiving plate above the first receiving plate, and a second vertical plate fixedly mounted on the second receiving plate. A first transmission arm is rotatably mounted on the inner side of a third vertical plate, with a second transmission arm hinged to its end. A central rotating shaft is rotatably mounted inside the second vertical plate, its inner side engaging with the second transmission arm. A support frame is connected to the outer side of the central rotating shaft, and multiple micro-motors are fixedly mounted on the outer end of the support frame. This invention enables automatic and stable connection to the reactor's connection structure, allowing power maintenance personnel to operate away from the reactor installation area, significantly reducing the accident rate and improving maintenance efficiency, thereby constructing a highly reliable, all-scenario safety protection system.

Description

Technical Field

[0001] This invention relates to the field of emergency protection technology for high-voltage reactive power compensators, and specifically discloses an emergency power outage protection device for high-voltage reactive power compensators. Background Technology

[0002] High-voltage reactive power compensators (VPCs) regulate reactive power through parallel capacitor banks. Their key component, the reactor, is directly connected in series to the capacitor bank's power supply circuit, forming an independent functional unit. The reactor suppresses harmonic amplification. By configuring a specific reactance rate, it shifts the LC series resonant point below the main interference harmonics, making the branch inductive at harmonic frequencies and blocking harmonic current inflow. This significantly reduces the amplitude and frequency of transient inrush current when the capacitor is switched on, thus protecting switching equipment. The core of reactor placement is ensuring safe distances and heat dissipation space. Typically, the number of reactors is related to the branch; a single branch usually requires three-phase reactors. Reactors in a single branch often adopt a large-spaced, horizontally distributed layout with non-magnetic supports to ensure sufficient natural ventilation for heat dissipation. Simultaneously, multiple threaded holes are provided on the reactor casing, facilitating both fixed installation within the VPC and connection to other support components for adjusting the reactor's installation position.

[0003] When a high-voltage reactive power compensator experiences an emergency power outage, to ensure the stability of the overall power supply system, the power supply system will instantly activate its emergency reserve power. Power maintenance personnel must conduct a complete power system inspection and maintenance before the emergency reserve power is depleted. If the maintenance work is not completed before the emergency reserve power is depleted, the power maintenance personnel must simultaneously disconnect the reactor at the instant the high-voltage reactive power compensator is de-energized. This process must ensure the synchronization between the reactor and the high-voltage reactive power compensator. In actual power operations, it is difficult for power maintenance personnel to maintain high synchronization; there is often a time difference of 0.5-1.5 seconds. During this time, the reactor will experience multiple cascading risks. Specifically: First, residual charge in the capacitor is released through the reactor circuit, forming a high-frequency LC resonance, which will instantly break down the capacitor and reactor, causing an explosive fault. Second, fault current on the grid side can easily flow back through the reactor, potentially burning out de-energized equipment. These multiple cascading risks can easily lead to an expansion of the accident scope, causing a surge in maintenance costs and seriously threatening personnel safety. Summary of the Invention

[0004] In response to the problem that multiple cascading risks arise when a high-voltage reactive power compensator experiences an emergency power outage due to the significant time difference in the synchronous disconnection of the reactor, the present invention provides an emergency power outage protection device for high-voltage reactive power compensators.

[0005] To address the above problems, the present invention provides the following technical solution:

[0006] An emergency power failure protection device for a high-voltage reactive power compensator includes a frame, a platform fixedly installed inside the frame, a controller main box fixedly installed on the platform, and an alarm light assembly fixedly installed on the outside of the frame, the alarm light assembly being electrically connected to the controller main box. Symmetrically arranged first vertical plates are fixedly installed on both sides of the platform. A first receiving plate movable along the Y-axis is provided on the first vertical plate. A second receiving plate movable along the X-axis is provided above the first receiving plate, and a second vertical plate is fixedly installed on the second receiving plate. The bottom of the second vertical plate is tightly secured... A third vertical plate is fixedly connected, and a first transmission arm is rotatably mounted on the inner side of the third vertical plate. A second transmission arm is hinged to the end of the first transmission arm and moves along the Y-axis. A central shaft arranged along the X-axis is rotatably mounted inside the second vertical plate. The inner side of the central shaft is in transmission cooperation with the second transmission arm. A bearing frame is in transmission connection to the outer side of the central shaft and moves along the Y-axis. Multiple micro motors are fixedly mounted on the outer end of the bearing frame, and the output end of the micro motors is threaded into the reactor mounting slot of the high-voltage reactive power compensator.

[0007] Preferably, a rod seat is fixedly installed on the platform, and a lead screw with rotatable engagement is provided inside the rod seat. The lead screw is arranged along the Y-axis direction. A first stepper motor is provided on the side of the rod seat and is fastened to the platform. The output end of the first stepper motor is driven by the lead screw through a first coupling. A lead screw nut is slidably fitted on the outer wall of the lead screw, and the lead screw nut is fastened to the first receiving plate. A first slide rail is fixedly installed on the first vertical plate. The first slide rail is arranged along the Y-axis direction. A Y-axis slider is fixedly installed at the bottom of the first receiving plate, and the Y-axis slider is slidably engaged with the first slide rail.

[0008] Preferably, a first ranging radar is fixedly installed on the side of the rod holder facing the nut sleeve, and a second ranging radar that cooperates with the first ranging radar is fixedly installed on both sides of the nut sleeve.

[0009] Preferably, a reference plate is fixedly installed on the side of the first vertical plate, and a plurality of slots are provided on the reference plate along the Y-axis. A photoelectric position sensor is fixedly installed on the outside of the slots. A light-shielding plate is fixedly installed on the side of the first receiving plate, and the light-shielding plate moves along the Y-axis and passes through the photoelectric position sensor.

[0010] Preferably, an electric slide rail is fixedly installed on the first receiving plate. The electric slide rail is arranged along the X-axis direction. A second stepper motor for driving is provided on the side of the electric slide rail. An X-axis sliding plate is fastened to the output sliding end of the electric slide rail. An X-axis slider is fixedly installed at the bottom of the X-axis sliding plate. Multiple second slide rails are fixedly installed on the electric slide rail. The second slide rails slide in cooperation with the X-axis slider. The X-axis sliding plate is fastened to the second receiving plate.

[0011] Preferably, a third stepper motor is provided on the outer side of the third vertical plate, and a transmission rod is provided on the third vertical plate for rotational engagement. One end of the transmission rod is connected to the output end of the third stepper motor through a second coupling, and the other end of the transmission rod is fastened to the first transmission arm.

[0012] Preferably, a bushing is fitted on the outer wall of one inner end of the transfer shaft, and a U-shaped groove is provided inside the bushing. The inner wall of the U-shaped groove slides in cooperation with the two sides and the top of the second transmission arm. A transmission gear is fixedly installed at one inner end of the transfer shaft, and a serrated groove that meshes with the transmission gear is provided at the bottom of the second transmission arm.

[0013] Preferably, a track groove plate is fixedly installed on the outer side of the third vertical plate. The track groove plate is rotatably engaged with the central shaft. A sliding groove is provided on the track groove plate. The sliding groove has three sections and is a through structure. The three sections of the sliding groove are: a straight groove along the Z-axis, a straight groove along the Y-axis, and an arc-shaped groove connecting the above two sections. A first limiting plate is provided on the side of the track groove plate, which is rotatably engaged with the third vertical plate. The first limiting plate is arranged along the Y-axis and has a limiting groove. The support frame is slidably engaged with the limiting groove. A shaft roller is rotatably installed on the inner side of the support frame. The outer wall of the shaft roller is slidably engaged with the inner wall of the sliding groove.

[0014] Preferably, a second limiting plate is fixedly connected to the outer end of the transfer shaft, and a through groove is provided on the second limiting plate, the inner wall of the through groove slidingly engaging with the outer wall of the shaft roller.

[0015] Preferably, each micro motor is provided with a right-angle connector that is electrically connected to the controller box. The output end of the micro motor is fastened to a long rod. The outer wall of the long rod near the micro motor is a smooth part, and the outer wall of the long rod away from the micro motor is provided with a threaded groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This invention achieves millisecond-level synchronous power-off of reactors through a triple structural innovation. First, the linkage design of cross-coordinate positioning and dual transmission arms significantly reduces the synchronization error of the micro-motor, completely eliminating the risk of resonant overvoltage and fault current backflow caused by the time difference of traditional circuit breaker tripping. Second, the direct-drive threaded actuator of this device can be pre-positioned to achieve millisecond-level power-off. The output end of the micro-motor is directly screwed into the reactor thread groove, eliminating other intermediate fixed connection operations and significantly reducing response time. Finally, the three-dimensional dynamic adaptation frame supports the tilt angle adjustment structure of the support frame, which not only reduces the layout space of this device, but also automatically completes position adjustment and related operations, thereby keeping operators away from the area, significantly reducing the accident rate, improving maintenance efficiency, and constructing a highly reliable all-scenario safety protection system. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall device structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall device structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the installation structure of the first and second receiving plates of the present invention.

[0022] Figure 4 This is a schematic diagram of the lead screw mounting structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the reference plate structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the electric slide rail mounting structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the X-axis sliding plate mounting structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the second and third vertical plates of the present invention;

[0027] Figure 9 This is a schematic diagram of the track groove plate installation structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the installation structure of the first transmission arm and the second transmission arm of the present invention.

[0029] Figure 11 This is a schematic diagram of the installation structure of the first limiting plate and the second limiting plate of the present invention;

[0030] Figure 12 This is a schematic diagram of the limiting groove and through groove structure of the present invention;

[0031] Figure 13 This is a schematic diagram of the long rod structure of the present invention;

[0032] In the diagram: 1. Frame, 2. Platform, 3. Controller box, 4. Alarm light assembly, 5. First vertical plate, 6. First receiving plate, 7. Second receiving plate, 8. Second vertical plate, 9. Third vertical plate, 10. First transmission arm, 11. Second transmission arm, 12. Central shaft, 13. Bearing frame, 14. Micro motor, 15. Rod seat, 16. Lead screw, 17. First stepper motor, 18. First coupling, 19. Nut sleeve, 20. First slide rail, 21. Y-axis slider, 22. First ranging radar, 23. Second ranging radar, 24. Reference plate, 25. Slot. 26. Photoelectric position sensor; 27. Light shield; 28. Electric slide rail; 29. ​​Second stepper motor; 30. X-axis slide plate; 31. X-axis slider; 32. Second slide rail; 33. Third stepper motor; 34. Transmission rod; 35. Second coupling; 36. Bushing; 37. U-shaped groove; 38. Transmission gear; 39. Serrated groove; 40. Track groove plate; 41. Slide groove; 42. First limiting plate; 43. Limiting groove; 44. Shaft roller; 45. Second limiting plate; 46. Through groove; 47. Right angle joint; 48. Long rod; 49. Smooth part; 50. Threaded groove. Detailed Implementation

[0033] 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.

[0034] This specific embodiment provides an emergency power outage protection device for a high-voltage reactive power compensator, such as... Figures 1-13 As shown, it includes a frame 1, which is formed by welding together multiple crossbeams and longitudinal beams. One end of the inner side of the frame 1 can be fastened to the outer frame of the high-voltage reactive power compensator, so that the device is fixedly assembled on the side of the high-voltage reactive power compensator.

[0035] A platform 2 is fixedly installed on the bottom side inside the frame 1. The platform 2 is the main load-bearing structure of the core component inside the device. Two rod seats 15 are fixedly installed on the platform 2, each with its bottom securely connected to the platform 2. The axes of the two rod seats 15 are arranged along the Y-axis. A lead screw 16 is installed between the two rod seats 15, and the outer wall of the lead screw 16 rotatably engages with the inner ring wall of the rod seat 15. The lead screw 16 is arranged along the Y-axis. A first stepper motor 17 is provided on the side of the rod seat 15. The first stepper motor 17 is fixedly installed on a motor support, which is securely connected to the platform 2, thereby fixing the first stepper motor 17 to the side of the rod seat 15. The output end of the first stepper motor 17 is driven by the lead screw 16 through the first coupling 18, thereby driving the lead screw 16 to rotate. A lead screw sleeve 19 is slidably fitted on the outer wall of the lead screw 16. The inner ring of the lead screw sleeve 19 is rotatably engaged with the outer wall of the lead screw 16, and the top of the outer ring of the lead screw sleeve 19 is tightly connected to the first receiving plate 6. Furthermore, two symmetrically arranged first vertical plates 5 are provided on both sides of the lead screw 16, both along the Y-axis. A first slide rail 20 is fixedly installed on the top of each of the two first vertical plates 5, both along the Y-axis. A Y-axis slider 21 is fixedly installed on the bottom of the first receiving plate 6. Multiple Y-axis sliders 21 are provided and symmetrically arranged on both sides of the bottom of the first receiving plate 6. Each Y-axis slider 21 is slidably engaged with the first slide rail 20, thereby limiting the movement direction of the first receiving plate 6, allowing the first receiving plate 6 to move along the Y-axis above the first vertical plates 5.

[0036] Two rod holders 15 are each fixedly mounted with a first ranging radar 22 on the side facing the nut sleeve 19, and the signal detection ends of the first ranging radar 22 are both facing the nut sleeve 19; a second ranging radar 23 is fixedly mounted on both sides of the nut sleeve 19, and the second ranging radar 23 is arranged at the same height as the two first ranging radars 22, so that the first ranging radar 22 and the second ranging radar 23 cooperate to sense the travel distance of the first receiving plate 6, thereby enhancing the coordinated linkage function of this device.

[0037] Reference plates 24 are fixedly installed on the sides of both first vertical plates 5. Each reference plate 24 has multiple slots 25 arranged along the Y-axis. All slots 25 are round holes, and the spacing between two adjacent slots 25 is the same. Photoelectric position sensors 26 are fixedly installed on the outside of the slots 25. There are two photoelectric position sensors 26 arranged symmetrically. Light-shielding plates 27 are fixedly installed on both sides of the first receiving plate 6. The light-shielding plates 27 can move along the Y-axis and pass through the photoelectric position sensors 26, so that the photoelectric position sensors 26 can accurately obtain the direction of movement of the first receiving plate 6, so as to ensure that the direction of movement of the first receiving plate 6 conforms to the control logic.

[0038] An electric slide rail 28 is fixedly mounted on the first receiving plate 6. The electric slide rail 28 is arranged along the X-axis, and its bottom is firmly connected to the upper surface of the first receiving plate 6. A second stepper motor 29 is provided on the side of the electric slide rail 28, which provides driving force to the electric slide rail 28. An X-axis sliding plate 30 is fixedly connected to the output sliding end of the electric slide rail 28, and the X-axis sliding plate 30 can move along the X-axis under the drive of the electric slide rail 28. Multiple X-axis sliders 31 are fixedly mounted on the bottom of the X-axis sliding plate 30, and multiple second slide rails 32 are fixedly mounted on the electric slide rail 28. The second slide rails 32 slide in cooperation with the X-axis sliders 31, thereby sharing the load-bearing pressure of the output sliding end of the electric slide rail 28. A second receiving plate 7 is fixedly connected to the top of the X-axis sliding plate 30, and the position of the second receiving plate 7 can be adjusted along the X-axis under the drive of the electric slide rail 28.

[0039] A second vertical plate 8 is fixedly installed on the second receiving plate 7. The second vertical plate 8 is a right-angle plate structure, and a third vertical plate 9 is fixedly installed on its bottom plate surface. The third vertical plate 9 is arranged parallel to the vertical plate of the second vertical plate 8.

[0040] A third stepper motor 33 is mounted on the outer side of the third vertical plate 9. The third stepper motor 33 is fixedly mounted on a motor bracket, which is fastened to the second receiving plate 7. A rotatably engaging transmission rod 34 is mounted on the third vertical plate 9. The height of the transmission rod 34 is the same as the height of the output shaft of the third stepper motor 33. One end of the transmission rod 34 is connected to the output end of the third stepper motor 33 via a second coupling 35, thereby driving the transmission rod 34 to rotate within the third vertical plate 9. The other end of the transmission rod 34 is fastened to a first transmission arm 10, which is located on the inner side of the third vertical plate 9, thereby driving the first transmission arm 10 to rotate within the inner side of the third vertical plate 9.

[0041] The outer end of the first transmission arm 10 is hinged to a second transmission arm 11 via a pin. A central shaft 12, arranged along the X-axis, is rotatably mounted inside the second vertical plate 8. A bushing 36 is fitted onto the outer wall of one inner end of the central shaft 12, and the bushing 36 can rotate with the central shaft 12. A U-shaped groove 37 with its opening facing downwards is formed inside the bushing 36. The inner wall of the U-shaped groove 37 slides with the sides and top of the second transmission arm 11, thereby limiting the movement of the second transmission arm 11 along the Y-axis. A transmission gear 38 is fixedly mounted on one inner end of the central shaft 12, and a serrated groove 39 that meshes with the transmission gear 38 is formed at the bottom of the second transmission arm 11, thereby enhancing the linkage capability between the second transmission arm 11 and the central shaft 12.

[0042] A track plate 40 is fixedly installed on the outer side of the second vertical plate 8, and the track plate 40 is rotatably engaged with the central shaft 12. A sliding groove 41 is provided on the track plate 40. The sliding groove 41 has three sections and is a continuous structure. The three sections of the sliding groove 41 are: a straight groove along the Z-axis, a straight groove along the Y-axis, and an arc-shaped groove connecting the two sections. The lowest point of the straight groove along the Z-axis is higher than that of the straight groove along the Y-axis. Both ends of the arc-shaped groove are connected to the straight grooves along the Z-axis and Y-axis. A first limiting plate 42 is provided on the side of the track plate 40. The inner side of the first limiting plate 42 is rotatably engaged with the second vertical plate 8 through a cylindrical portion. The first limiting plate 42 is arranged along the Y-axis and has the same arrangement height as one section of the straight groove along the Y-axis of the sliding groove 41. A support frame 13 is provided on the outer side of the second vertical plate 8. A limiting groove 43 is provided in the first limiting plate 42. The opening of the limiting groove 43 is arranged along the X-axis direction. The end of the support frame 13 near the second vertical plate 8 is slidably engaged with the inner wall of the limiting groove 43. A shaft roller 44 is rotatably installed on the inner side of the end of the support frame 13 near the second vertical plate 8. The outer wall of the shaft roller 44 is slidably engaged with the inner wall of the sliding groove 41.

[0043] The outer end of the transfer shaft 12 is fixedly connected to a second limiting plate 45, which is arranged on the outer side of the track groove plate 40. The track groove plate 40 has a through groove 46, and the inner wall of the through groove 46 slides with the outer wall of the shaft roller 44. Thus, the second limiting plate 45 provides a support structure for the shaft roller 44 to slide in the slide groove 41.

[0044] A controller box 3 is fixedly installed on the platform 2, and an alarm light group 4 is fixedly installed on the outer side of the frame 1. The alarm light group 4 can display various alarm indicator colors. The controller box 3 and the alarm light group 4 enable the alarm light group 4 to display the working status of the device in real time. Multiple micro motors 14 are fixedly installed on the outer end of the support frame 13. Three micro motors 14 are arranged at equal intervals, and the output ends of the micro motors 14 face outwards from the device. The controller box 3 can be electrically connected to the three micro motors 14, the first stepper motor 17, the electric slide rail 28, the second stepper motor 29, and the third stepper motor 33 via a control bus, thereby facilitating the control of the overall device's operating progress. Furthermore, the controller box 3 can wirelessly communicate with the first ranging radar 22, the second ranging radar 23, and the photoelectric position sensor 26 to facilitate real-time sensing of the overall device's operating status.

[0045] In addition, each micro motor 14 is equipped with a right-angle connector 47 that is electrically connected to the controller box 3, so as to make the connection and wiring of the communication line more stable. Each micro motor 14 has a long rod 48 fastened to its output end. The long rod 48 can rotate with the output end of the micro motor 14. The outer wall of the long rod 48 near the micro motor 14 is a smooth part 49. The outer wall of the long rod 48 away from the micro motor 14 is provided with a threaded groove 50. The threaded groove 50 can be connected to the threaded hole opened on the reactor housing, so that the output end of the micro motor 14 is threadedly engaged with the reactor mounting slot of the high voltage reactive power compensator, and the long rod 48 is fastened to the reactor.

[0046] The working principle of this invention is as follows:

[0047] When the high-voltage reactive power compensator encounters an emergency power outage, the emergency reserve power supply will promptly deliver emergency reserve power to the power supply system. At this time, the main control unit in the controller box 3 will calculate the remaining time of the emergency reserve power supply. Before the emergency reserve power supply is exhausted, the second receiving plate 7 is moved along the X-axis to the side of the first reactor connected in series with the high-voltage reactive power compensator by controlling the electric slide rail 28. The first receiving plate 6 is moved along the Y-axis by controlling the first stepper motor 17, thereby gradually bringing the long rod 48 closer to the reactor. During the movement of the first receiving plate 6 along the Y-axis, the first transmission arm 10 can be rotated by controlling the third stepper motor 33. Under the drive of the second transmission arm 11, the transmission gear 38 drives the central shaft 12 to rotate together. This causes the second limiting plate 45 to drive the shaft roller 44 from the straight groove along the Z-axis of the slide groove 41 through the arc groove and gradually move to the bottom of the straight groove along the Y-axis, close to the side of the first limiting plate 42. During this process, the support frame 13 is gradually adjusted to be arranged along the Y-axis. When the shaft roller 44 slides in the straight groove along the Z-axis, the long rod 48 enters the threaded hole of the reactor. Under the rotation of the output end of the micro motor 14, the threaded groove 50 of the long rod 48 is engaged with the threaded hole of the reactor, thereby fastening the long rod 48 to the reactor thread.

[0048] In the instant the emergency reserve power is exhausted, by controlling the first stepper motor 17, the first receiving plate 6 moves along the Y-axis, thereby causing the reactor to quickly disconnect from the high-voltage reactive power compensator. This prevents the residual charge of the capacitor from being released through the reactor circuit, ensuring that no explosive failure occurs. This assists power engineering personnel in maintenance work and protects the safety of relevant personnel.

[0049] Compared with existing technologies, the present invention has the following advantages:

[0050] First, this device completely solves the problem of power outage time difference through a multi-axis linkage rigid transmission structure: the first receiving plate 6 and the second receiving plate 7 form a cross coordinate reference to accurately locate the reactor installation position; the kinematic chain composed of the first transmission arm 10, the second transmission arm 11 and the central shaft 12 will quickly adjust the arrangement position of the support frame 13 and gradually bring it closer to the reactor. The driving error time of the above linkage structure is less than 0.5ms, eliminating the asynchronous risk of traditional manual control and fundamentally preventing resonant overvoltage and fault current backflow caused by the reactor's delayed disconnection.

[0051] Secondly, the device adopts a direct-drive threaded actuator, which can be pre-positioned to achieve millisecond-level power cut-off; the output end of the micro motor 14 is directly screwed into the reactor thread groove, eliminating other intermediate fixed connection operations, and the entire power cut-off action is compressed to 8-12ms, greatly reducing the response time.

[0052] Finally, this invention features an innovative three-dimensional dynamic adaptation framework to cope with complex working conditions. The support frame 13 supports tilt adjustment, which not only accommodates various types of reactors of different diameters but also reduces the installation space required for the device, thus facilitating its reasonable placement on the side of the high-voltage reactive power compensator. The linkage structure of the alarm light group 4, the controller box 3, and other drive components can trigger an audible and visual alarm 10 seconds before the emergency power is exhausted, and can automatically complete position adjustments and related operations, thereby keeping personnel away from the area. This significantly reduces the probability of accidents and greatly improves the overall maintenance efficiency of the device.

[0053] 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. An emergency power-off protection device for high-voltage reactive compensators, comprising a frame (1), characterized in that, The frame (1) is fixedly installed with a table plate (2), the table plate (2) is fixedly installed with a controller general box (3), the outer side of the frame (1) is fixedly installed with an alarm lamp group (4), the alarm lamp group (4) is electrically connected with the controller general box (3);The both sides of the table plate (2) are fixedly installed with the first vertical plate (5) arranged symmetrically, the first vertical plate (5) is provided with the first receiving plate (6) moving along the Y axis direction, the top of the first receiving plate (6) is provided with the second receiving plate (7) moving along the X axis direction, the second receiving plate (7) is fixedly installed with the second vertical plate (8), the bottom of the second vertical plate (8) is fixedly connected with the third vertical plate (9), the inner side of the third vertical plate (9) is rotatably installed with the first transmission arm (10), the end of the first transmission arm (10) is hingedly connected with the second transmission arm (11), the second transmission arm (11) moves along the Y axis direction, the second vertical plate (8) is rotatably installed with the intermediate transfer shaft (12) arranged along the X axis direction, the inner side of the intermediate transfer shaft (12) is in transmission cooperation with the second transmission arm (11), the outer side of the intermediate transfer shaft (12) is in transmission connection with the bearing frame (13), the bearing frame (13) moves along the Y axis direction, the outer side end of the bearing frame (13) is fixedly installed with a plurality of micro-motor (14), the output end of the micro-motor (14) is in screw thread cooperation with the electric reactor installation slot of the high-voltage reactive power compensator; The table plate (2) is fixedly installed with a rod seat (15), the rod seat (15) is provided with a rotationally cooperating lead screw (16), the lead screw (16) is arranged along the Y axis direction, the side of the rod seat (15) is provided with a first stepper motor (17) fixedly connected with the table plate (2), the output end of the first stepper motor (17) is in transmission cooperation with the lead screw (16) through a first coupling (18), the outer wall of the lead screw (16) is slidably sleeved with a nut sleeve (19), the nut sleeve (19) is fixedly connected with the first receiving plate (6);The first vertical plate (5) is fixedly installed with a first slide rail (20), the first slide rail (20) is arranged along the Y axis direction, the bottom of the first receiving plate (6) is fixedly installed with a Y-direction sliding block (21), the Y-direction sliding block (21) is in sliding cooperation with the first slide rail (20); The first receiving plate (6) is fixedly installed with an electric slide rail (28), the electric slide rail (28) is arranged along the X axis direction, the side of the electric slide rail (28) is provided with a second stepper motor (29) for driving, the output sliding end of the electric slide rail (28) is fixedly connected with an X-direction sliding plate (30), the bottom of the X-direction sliding plate (30) is fixedly installed with an X-direction sliding block (31), a plurality of second slide rails (32) are fixedly installed on the electric slide rail (28), the second slide rails (32) are in sliding cooperation with the X-direction sliding block (31), the X-direction sliding plate (30) is fixedly connected with the second receiving plate (7).

2. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The first distance measuring radar (22) is fixedly installed on one side of the rod seat (15) facing the thread sleeve (19), and the second distance measuring radar (23) is fixedly installed on both sides of the thread sleeve (19) and matched with the first distance measuring radar (22).

3. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The side of the first vertical plate (5) is fixedly installed with a reference plate (24), a plurality of slot holes (25) are arranged on the reference plate (24) along the Y-axis direction, an optical position sensor (26) is fixedly installed on the outer side of the slot hole (25), and the side of the first receiving plate (6) is fixedly installed with a light shield plate (27) which moves along the Y-axis direction and passes through the optical position sensor (26).

4. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The third vertical plate (9) is provided with a third stepping motor (33) on the outer side, a transmission rod (34) is arranged in rotation cooperation on the third vertical plate (9), one end of the transmission rod (34) is connected in transmission with the output end of the third stepping motor (33) through a second coupling (35), and the other end of the transmission rod (34) is fastened with the first transmission arm (10).

5. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The inner side of the middle transfer shaft (12) is provided with a shaft sleeve (36) on the outer wall of one end, a U-shaped groove (37) is formed in the shaft sleeve (36), the inner wall of the U-shaped groove (37) is in sliding cooperation with the two sides and the top of the second transmission arm (11), a transmission gear (38) is fixedly installed on the end of the inner side of the middle transfer shaft (12), and a sawtooth groove (39) is formed in the bottom of the second transmission arm (11) and is in mesh transmission with the transmission gear (38).

6. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The outer side of the third vertical plate (9) is fixedly installed with a rail groove plate (40), the rail groove plate (40) is in rotation cooperation with the middle transfer shaft (12), a sliding groove (41) is formed in the rail groove plate (40), the sliding groove (41) is provided with three sections and is in a through structure, the three sections of the sliding groove (41) are respectively a straight bar type groove arranged along the Z-axis direction, a straight bar type groove arranged along the Y-axis direction and an arc-shaped groove connecting the two sections, a first limiting plate (42) is arranged on the side of the rail groove plate (40) and is in rotation cooperation with the third vertical plate (9), the first limiting plate (42) is arranged along the Y-axis direction, a limiting groove (43) is formed in the first limiting plate (42), the bearing frame (13) is in sliding cooperation with the limiting groove (43), a shaft roller (44) is rotatably installed on the inner side of the bearing frame (13), and the outer wall of the shaft roller (44) is in sliding cooperation with the inner wall of the sliding groove (41).

7. The emergency power-off protection device for high-voltage reactive compensator according to claim 6, characterized in that, The outer end of the middle transfer shaft (12) is fixedly connected with a second limiting plate (45), a through groove (46) is formed in the second limiting plate (45), and the inner wall of the through groove (46) is in sliding cooperation with the outer wall of the shaft roller (44).

8. The emergency power-off protection device for high-voltage reactive compensator according to claim 1, characterized in that, The micro motor (14) is provided with a right-angle connector (47) electrically connected with the controller total box (3), the output end of the micro motor (14) is fastened with an elongated rod (48), the outer wall of one end of the elongated rod (48) close to the micro motor (14) is a smooth part (49), and a threaded groove (50) is formed in the outer wall of the other end of the elongated rod (48) away from the micro motor (14).

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