A cvt all-terrain transformer checker system

Abstract

The present application relates to a kind of CVT all-terrain mutual inductor verification system, including verification mechanism and tracked vehicle;Verification mechanism is set to the top of tracked vehicle, and tracked vehicle can drive verification mechanism to move;Verification mechanism includes rotatable sealed high-voltage bushing assembly, horizontal high-voltage reactor and voltage mutual inductor, one end of high-voltage bushing assembly is connected with the first end of tee pipe, high-voltage bushing assembly can be rotated relative to tee pipe, to make high-voltage bushing assembly present horizontal state or vertical state, the second end of tee pipe is connected with horizontal high-voltage reactor, the third end of tee pipe is connected with voltage mutual inductor;By setting rotatable sealed high-voltage bushing assembly and horizontal high-voltage reactor, compared with the traditional verification CVT's sulfur hexafluoride closed combined electric appliance GIS, the overall height of all-terrain mutual inductor verification device is reduced, space is saved, and transportation and storage are facilitated.

Description

Technical Field

[0001] This invention relates to the field of CVT calibration technology, and in particular to a calibration system for all-terrain current transformers used in CVTs. Background Technology

[0002] Currently, CVTs (capacitive voltage transformers) are crucial electrical equipment in power grids. In power plants and substations, it is essential to perform reliability and safety verification on CVTs in operation to reduce the probability of accidents.

[0003] The invention patent filed in China, with application number 200810197635X and titled "Integrated Verification System for On-site CVTs," integrates high-voltage bushings, standard voltage transformers, standard capacitors, and series reactors into a single sulfur hexafluoride closed-loop GIS. This technology solves the problem of verifying 220kV-500kV CVTs on-site without unloading them, saving manpower and resources. However, the high-voltage bushings and series reactors are stacked upright, which restricts their height during transportation, making them inconvenient for transport and storage. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide an all-terrain instrument transformer calibration system for CVTs. Its advantages include reducing the overall height of the all-terrain instrument transformer calibration system, saving space, and facilitating transportation and storage.

[0005] The above-mentioned objective of this invention is achieved through the following technical solution: a CVT all-terrain instrument transformer calibration system, comprising a calibration mechanism and a tracked vehicle; the calibration mechanism is disposed on the top of the tracked vehicle, and the tracked vehicle can drive the calibration mechanism to move; the calibration mechanism includes a rotatable and sealable high-voltage bushing assembly, a horizontal high-voltage reactor, and a voltage transformer, one end of the high-voltage bushing assembly is connected to the first end of a three-way pipe, the high-voltage bushing assembly can rotate relative to the three-way pipe to make the high-voltage bushing assembly in a horizontal or vertical state, the second end of the three-way pipe is connected to the horizontal high-voltage reactor, and the third end of the three-way pipe is connected to the voltage transformer.

[0006] Preferably, the present invention provides a CVT all-terrain instrument transformer calibration system, wherein the high-voltage bushing assembly includes a high-voltage bushing, a rotary joint, a connecting bushing, and a drive assembly; one end of the high-voltage bushing is connected to the rotary joint, the rotary joint is sleeved on the connecting bushing, the rotary joint is rotatable relative to the connecting bushing, the rotary joint is sealed to the connecting bushing, and the end of the connecting bushing away from the high-voltage bushing is connected to the first end of the tee pipe; one end of the drive assembly is connected to the rotary joint, and the drive assembly is used to drive the rotary joint to rotate, the rotation of the rotary joint causing the high-voltage bushing assembly to rotate, so that the high-voltage bushing assembly is in a horizontal or vertical state.

[0007] Preferably, the present invention provides a CVT all-terrain current transformer calibration system, wherein the rotary joint includes a rotating sleeve and a flange, at least one arc-shaped groove is formed on the inner peripheral wall of the rotating sleeve, the arc-shaped groove extends along the circumference of the rotating sleeve, at least one arc-shaped groove is formed on the outer peripheral wall of the connecting sleeve, the arc-shaped groove extends along the circumference of the connecting sleeve, the arc-shaped groove and the arc-shaped groove are correspondingly arranged, the arc-shaped groove and the arc-shaped groove together form a sealing groove, and a sealing ring is placed in the sealing groove to make the rotating sleeve and the connecting sleeve sealed together; one end of the rotating sleeve is fitted to the flange and bolted, one end of the high-pressure sleeve is connected to the flange, and one end of the drive assembly is fixed to the flange.

[0008] Preferably, the present invention provides a CVT all-terrain current transformer calibration system, wherein the rotary joint further includes a ball bearing, and at least one rolling groove is formed on the outer peripheral wall of the connecting sleeve, the rolling groove extending along the circumference of the connecting sleeve, the rolling groove and the arc-shaped groove being spaced apart, the ball bearing being housed in the rolling groove, the ball bearing being able to roll along the rolling groove, and the outer peripheral wall of the ball bearing being in contact with the inner peripheral wall of the rotary sleeve; when the rotary sleeve rotates relative to the connecting sleeve, the rotary sleeve drives the ball bearing to rotate in the rolling groove.

[0009] Preferably, the present invention provides an all-terrain current transformer calibration system for CVT, wherein the drive assembly includes a drive motor and a transmission mechanism, the output shaft of the drive motor is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the rotary joint; the transmission mechanism includes a drive gear and a driven gear, the drive gear is connected to the output shaft of the drive motor, the driven gear is connected to the rotary joint, and the drive gear and the driven gear mesh.

[0010] Preferably, the present invention provides an all-terrain current transformer calibration system for CVT, wherein the driven gear is a semi-circular gear.

[0011] Preferably, the present invention provides a CVT all-terrain current transformer calibration system, wherein the horizontal high-voltage reactor includes a housing, a reactor body, a first fixing frame, and a second fixing frame. The housing is configured to form a rotating cavity, and the housing is filled with sulfur hexafluoride. The first fixing frame, the second fixing frame, and the reactor body are all disposed within the rotating cavity. One end of the reactor body passes through the first fixing frame and is inserted into the second fixing frame. The end of the housing with the second fixing frame is covered with a sealing plate. The end of the housing away from the second fixing frame is connected to the second end of the tee pipe.

[0012] Preferably, the present invention provides a CVT all-terrain current transformer calibration system, wherein the bottom of the horizontal high-voltage reactor at the end away from the three-way pipe is fixed to the top of the tracked vehicle by a support block, the support block is provided with an arc-shaped groove adapted to the housing, the bottom of the end of the housing away from the three-way pipe is engaged in the arc-shaped groove, and the support block is fixed to the top of the tracked vehicle by fastening bolts.

[0013] Preferably, the present invention provides an all-terrain instrument sensor calibration system for CVT, wherein the bottom end of the sealing plate is connected to the side wall of the top of the tracked vehicle via a mounting bracket.

[0014] Preferably, the present invention provides an all-terrain instrument transformer calibration system for CVT, wherein the mounting bracket has an L-shaped cross-section.

[0015] In summary, the beneficial technical effects of this invention are as follows: The CVT all-terrain instrument transformer calibration system provided in this application includes a calibration mechanism and a tracked vehicle; the calibration mechanism is located on the top of the tracked vehicle, which can drive the calibration mechanism to move; the calibration mechanism includes a rotatable and sealed high-voltage bushing assembly, a horizontal high-voltage reactor, and a voltage transformer; one end of the high-voltage bushing assembly is connected to the first end of a three-way pipe, and the high-voltage bushing assembly can rotate relative to the three-way pipe to make the high-voltage bushing assembly horizontal or vertical; the second end of the three-way pipe is connected to the horizontal high-voltage reactor, and the third end of the three-way pipe is connected to the voltage transformer; by setting the rotatable and sealed high-voltage bushing assembly and the horizontal high-voltage reactor, compared with the traditional sulfur hexafluoride closed-loop combined electrical system (GIS) for calibrating CVTs, the overall height of the all-terrain instrument transformer calibration device is reduced, saving space and facilitating transportation and storage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention (the high-voltage bushing is in a horizontal state).

[0017] Figure 2This is a schematic diagram of the overall structure of the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention (the high-voltage bushing is in a vertical position).

[0018] Figure 3 This is a schematic diagram of the structure of the calibration mechanism in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0019] Figure 4 This is a schematic diagram of the high-voltage bushing assembly in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0020] Figure 5 This is a cross-sectional view of the high-voltage bushing assembly in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0021] Figure 6 This is a schematic diagram of the connection structure between the rotary joint and the connecting sleeve in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0022] Figure 7 This is a cross-sectional view of the connection structure between the rotary joint and the connecting sleeve in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0023] Figure 8 This is a schematic diagram of the connection structure between the support frame and the drive motor in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0024] Figure 9 This is a schematic diagram of the connecting frame in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0025] Figure 10 This is a schematic diagram of the connection structure between the horizontal high-voltage reactor and the frame in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0026] Figure 11 This is a cross-sectional view of the horizontal high-voltage reactor in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0027] Figure 12 This is a schematic diagram of the internal structure of the tracked vehicle in the CVT all-terrain instrument transformer calibration system provided in this embodiment of the invention.

[0028] In the diagram, 1. All-terrain instrument transformer calibration system; 10. Calibration mechanism; 11. High-voltage bushing assembly; 111. High-voltage bushing; 1111. High-voltage insulating bushing; 1112. Bending pipe; 1113. Equalizing ring; 1114. High-voltage connecting end cap; 1115. Support plate; 112. Rotary joint; 1121. Rotating bushing; 1122. Arc groove; 1123. Mounting flange; 1124. Flange; 113. Connecting bushing; 1131. Arc groove; 1132. Rolling groove; 1133. Connecting flange; 114. Drive assembly; 1141. Drive motor; 1142. Transmission mechanism; 1143. Driving gear; 1144. Driven gear; 1145. Slot; 12. Horizontal high-voltage reactor; 121. Housing; 1211. Rotating cavity; 1212. 122. Flange; 123. Reactor body; 124. First fixing frame; 125. Second fixing frame; 126. Sealing plate; 13. Voltage transformer; 14. T-junction; 20. Tracked vehicle; 21. Vehicle body; 211. Power supply battery; 212. Input module; 213. Output module; 214. Drive motor; 215. Emergency stop button; 216. Power inverter; 22. Frame; 30. Support block; 40. Mounting frame; 50. Connecting frame; 51. Arc plate; 52. Vertical plate; 53. Horizontal plate; 60. Support frame; 61. Cuboid frame; 62. Pad block; 63. U-shaped fixing frame; 70. Conductive rod; 80. First conductive post; 90. Second conductive post; 100. Cover; 101. Placement slot; 102. Observation port; 103. Rotation hole; 104. Accommodating cavity. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Reference Figures 1 to 3 This invention discloses an all-terrain instrument transformer calibration system 1 for CVTs, comprising a calibration mechanism 10 and a tracked vehicle 20. The calibration mechanism 10 is located at the top of the tracked vehicle 20, which can drive the calibration mechanism 10 to move. The calibration mechanism 10 includes a rotatable and sealed high-voltage bushing assembly 11, a horizontal high-voltage reactor 12, and a voltage transformer 13. One end of the high-voltage bushing assembly 11 is connected to the first end of a three-way pipe 14, and the high-voltage bushing assembly 11 can rotate relative to the three-way pipe 14 to make the high-voltage bushing assembly 11 horizontal or vertical. The second end of the three-way pipe 14 is connected to the horizontal high-voltage reactor 12, and the third end of the three-way pipe 14 is connected to the voltage transformer 13. By setting the rotatable and sealed high-voltage bushing assembly 11 and the horizontal high-voltage reactor 12, compared with the traditional sulfur hexafluoride closed-loop combined electrical system (GIS) for calibrating CVTs, the overall height of the all-terrain instrument transformer calibration system 1 is reduced, saving space and facilitating transportation and storage.

[0031] Specifically, with Figure 3Taking the orientation shown as an example, the first end of the tee pipe 14 is the right end of the tee pipe 14, the second end of the tee pipe 14 is the rear end of the tee pipe 14, and the third end of the tee pipe 14 is the left end of the tee pipe 14. The first end and the third end of the tee pipe 14 are set opposite to each other.

[0032] The usage process of the CVT all-terrain transformer calibration system 1 provided in this embodiment is as follows: After the tracked vehicle 20 moves the calibration mechanism 10 to the designated position, it drives the high-voltage bushing assembly 11 to rotate 90°. At this time, the high-voltage bushing assembly 11 rotates from a horizontal state to a vertical state, and the top of the high-voltage bushing assembly 11 contacts the CVT capacitive voltage transformer 13 on site. The horizontal high-voltage reactor 12 resonates with the CVT capacitive voltage transformer 13 on site to generate high voltage, so as to calibrate the CVT capacitive voltage transformer 13 on site.

[0033] Furthermore, in this embodiment, the tracked vehicle 20 includes a vehicle body 21 and a frame 22, with the frame 22 disposed on the top of the vehicle body 21 and the calibration mechanism 10 disposed on the frame 22.

[0034] It should be noted that the structure of the vehicle body 21 is a structure well known to those skilled in the art, and the structure of the vehicle body 21 will not be described in detail here.

[0035] Continue to refer to Figure 12 The vehicle body 21 houses a power supply battery 211, an input module 212, an output module 213, and a drive motor 214. The output module 213 is correspondingly positioned to drive the vehicle body 214. The drive motor 214 drives the vehicle body 21. The input module 212 communicates with an external control handle, the output module 213, and the drive motor 214. The power supply battery 211 powers the drive motor 214. During operation, the control handle sends a forward or backward signal to the input module 212. The input module 212 transmits the received signal to the output module 213, which in turn transmits the received signal to the drive motor 214. The drive motor 214 rotates forward or backward according to the received signal to move the vehicle body 21 forward or backward.

[0036] Specifically, the drive motor 214 drives the gears on the vehicle body to rotate, which in turn drives the tracks on the vehicle body to move, thereby enabling the vehicle body to move.

[0037] It should be noted that the gear is located inside the track and meshes with the track, and the output shaft of the drive motor 214 passes through the vehicle body shell and connects with the gear.

[0038] One end of the vehicle body 21 is equipped with an emergency stop button 215. When the control handle is damaged during the movement of the vehicle body 21, the vehicle body 21 can be stopped by controlling the movement of the vehicle body 21 through the emergency stop button 215.

[0039] Continue to refer to Figure 1 and Figure 2 In this embodiment, the frame 22 adopts a rectangular frame. In order to enhance the strength of the frame 22, crisscrossing reinforcing bars are provided inside the frame 22.

[0040] The top of the frame 22 and the vehicle body 21 can be connected by welding, or the frame 22 and the vehicle body 21 can be connected by bolts.

[0041] Continue to refer to Figure 9 In this embodiment, the voltage transformer 13 is connected to the frame 22 via a connecting frame 50. The connecting frame 50 includes an arc plate 51, a vertical plate 52, and a horizontal plate 53. The arc plate 51 is adapted to the outer shell of the voltage transformer 13. The arc plate 51 is connected to the horizontal plate 53 via the vertical plate 52. The horizontal plate 53 is used to fix it on the frame 22. During use, the outer shell of the voltage transformer 13 is inserted into the arc plate 51, and the horizontal plate 53 is fixed to the frame 22 by bolts.

[0042] It should be noted that the voltage transformer 13 is a component well known to those skilled in the art, and its structure will not be described in detail here.

[0043] Continue to refer to Figures 3 to 5 In this embodiment, the high-pressure bushing assembly 11 includes a high-pressure bushing 111, a rotary joint 112, a connecting sleeve 113, and a drive assembly 114. One end of the high-pressure bushing 111 is connected to the rotary joint 112, which is sleeved on the connecting sleeve 113. The rotary joint 112 can rotate relative to the connecting sleeve 113, and the rotary joint 112 and the connecting sleeve 113 are sealed together. The end of the connecting sleeve 113 away from the high-pressure bushing 111 is connected to the first end of the tee pipe 14. One end of the drive assembly 114 is connected to the rotary joint 112, and the drive assembly 114 is used to drive the rotary joint 112 to rotate. The rotation of the rotary joint 112 drives the high-pressure bushing assembly 11 to rotate, so that the high-pressure bushing assembly 11 is in a horizontal or vertical state. This configuration reduces the space occupied compared with the traditional vertical high-pressure bushing 111 and facilitates transportation.

[0044] Specifically, the high-pressure bushing 111 is in a vertical position during use, and in a horizontal position when not in use.

[0045] In this embodiment, the center line of the connecting bushing 113 is arranged parallel to the center line of the housing of the voltage transformer 13. In some feasible embodiments, the center line of the connecting bushing 113 is arranged collinearly with the center line of the housing of the voltage transformer 13.

[0046] Continue to refer to Figure 6 and Figure 7 In this embodiment, the rotary joint 112 includes a rotating sleeve 1121 and a flange 1124. At least one arc-shaped groove 1122 is formed on the inner circumferential wall of the rotating sleeve 1121, extending circumferentially along the rotating sleeve 1121. At least one arc-shaped groove 1131 is formed on the outer circumferential wall of the connecting sleeve 113, extending circumferentially along the connecting sleeve 113. The arc-shaped groove 1122 and the arc-shaped groove 1131 are correspondingly arranged, and together they form a tight seal. A sealing groove is provided, and a sealing ring is placed inside the sealing groove to ensure a sealed connection between the rotating sleeve 1121 and the connecting sleeve 113. One end of the rotating sleeve 1121 is fitted to the flange 1124 and bolted to it. One end of the high-pressure sleeve 111 is connected to the flange 1124, and one end of the drive assembly 114 is fixed to the flange 1124. By placing a sealing ring inside the sealing groove, the sealing performance between the rotating sleeve 1121 and the connecting sleeve 113 is improved, thereby achieving a rotating sealed connection between the rotating sleeve 1121 and the connecting sleeve 113.

[0047] Specifically, such as Figure 7 As shown, there are two sealing grooves, which are spaced apart along the center line of the connecting sleeve 113.

[0048] It should be noted that the number of sealing grooves can be determined according to the actual situation.

[0049] In this embodiment, the center line of the rotating sleeve 1121 is arranged parallel to the center line of the connecting sleeve 113. In some feasible embodiments, the center line of the rotating sleeve 1121 is arranged collinearly with the center line of the connecting sleeve 113.

[0050] Furthermore, in this embodiment, a connecting flange 1133 is provided on the outer peripheral wall of the end of the connecting sleeve 113 away from the high-pressure sleeve 111. The connecting flange 1133 extends outward along the radial direction of the connecting sleeve 113. During use, the connecting flange 1133 is attached to the first end of the tee pipe 14 and is fastened by bolts.

[0051] Furthermore, in this embodiment, the rotary joint 112 also includes a ball bearing. At least one rolling groove 1132 is provided on the outer peripheral wall of the connecting sleeve 113. The rolling groove 1132 extends circumferentially along the connecting sleeve 113, and the rolling groove 1132 and the arc-shaped groove 1131 are spaced apart. The ball bearing is housed in the rolling groove 1132 and can roll along the rolling groove 1132. The outer peripheral wall of the ball bearing is in contact with the inner peripheral wall of the rotating sleeve 1121. When the rotating sleeve 1121 rotates relative to the connecting sleeve 113, the rotating sleeve 1121 drives the ball bearing to rotate in the rolling groove 1132. By providing the ball bearing, the ball bearing is driven to rotate during the rotation of the rotating sleeve 1121, which improves the smoothness of the rotation of the rotating sleeve 1121.

[0052] Specifically, such as Figure 7 As shown, there are two rolling grooves 1132, which are located on both sides of the two sealing grooves.

[0053] It should be noted that the number of rolling grooves 1132 can be determined according to the actual situation.

[0054] Each rolling groove 1132 may contain multiple balls, which can roll along the rolling groove 1132.

[0055] During installation, the rotating sleeve 1121 is fitted onto the outer peripheral wall of the connecting sleeve 113, and the end of the rotating sleeve 1121 away from the flange 1124 abuts against the connecting flange 1133 of the connecting sleeve 113. The inner peripheral wall of the rotating sleeve 1121 contacts the outer peripheral wall of the connecting sleeve 113.

[0056] Furthermore, in this embodiment, the end of the connecting sleeve 113 away from the tee pipe 14 is spaced at a predetermined distance from the flange 1124.

[0057] Specifically, a mounting flange 1123 is provided on the outer peripheral wall of the end of the rotating sleeve 1121 away from the connecting flange 1133. The mounting flange 1123 extends outward along the radial direction of the rotating sleeve 1121. The end of the rotating sleeve 1121 away from the connecting flange 1133 abuts against one side of the flange 1124. The flange 1124 is connected to the mounting flange 1123 by bolts.

[0058] Continue to refer to Figures 3 to 5 In this embodiment, the drive assembly 114 includes a drive motor 1141 and a transmission mechanism 1142. The output shaft of the drive motor 1141 is connected to one end of the transmission mechanism 1142, and the other end of the transmission mechanism 1142 is connected to the rotary joint 112. The transmission mechanism 1142 includes a drive gear 1143 and a driven gear 1144. The drive gear 1143 is connected to the output shaft of the drive motor 1141, and the driven gear 1144 is connected to the rotary joint 112. The drive gear 1143 and the driven gear 1144 mesh with each other.

[0059] The center line of the output shaft of the drive motor 1141 is parallel to the center line of the connecting sleeve 113.

[0060] Specifically, the drive gear 1143 is mounted on the output shaft of the drive motor 1141, and the center line of the drive gear 1143 is parallel to the center line of the output shaft of the drive motor 1141. In some feasible embodiments, the center line of the drive gear 1143 is collinear with the center line of the output shaft of the drive motor 1141.

[0061] The centerline of the driven gear 1144 is parallel to the centerline of the driving gear 1143.

[0062] Continue to refer to Figure 8 In this embodiment, the drive motor 1141 is fixedly connected to the frame 22 via a support frame 60. The support frame 60 includes a cuboid frame 61, a pad 62, and two U-shaped fixing brackets 63. The height of the first long side of the cuboid frame 61 is higher than the height of the second long side. To improve the strength of the support frame 60, reinforcing ribs are provided inside the support frame 60. The pad 62 is disposed on the second long side of the cuboid frame 61, and the total height of the pad 62 and the second long side is equal to the height of the first long side. During installation, the cuboid frame 61 is fixed to the top surface of the frame 22, the drive motor 1141 is placed on the cuboid frame 61, and the two U-shaped fixing brackets 63 are spaced apart and cover the drive motor 1141. The opposite sides of the bottom surface of each U-shaped fixing bracket 63 are connected to the top surface of the first long side and the top surface of the pad 62, respectively, so that the drive motor 1141 is fixed on the cuboid frame 61.

[0063] Continue to refer to Figures 3 to 5 In this embodiment, the driven gear 1144 is a semi-circular gear.

[0064] Specifically, a groove 1145 is provided on one side of the semi-circular gear. The groove 1145 extends along the circumference of the semi-circular gear. During use, the outer peripheral wall of the flange 1124 is inserted into the groove 1145. The flange 1124, the semi-circular gear, and the rotating sleeve 1121 are fastened together by bolts.

[0065] In order to charge the drive motor 1141, a power inverter 216 is installed inside the vehicle body 21. The power inverter 216 is used to convert DC power into AC power in order to supply power to the drive motor 1141.

[0066] Furthermore, in this embodiment, the high-voltage bushing 111 includes a high-voltage insulating bushing 1111, a bent pipe 1112, and an equalizing ring 1113. The equalizing ring 1113 is disposed at one end of the high-voltage insulating bushing 1111, and the other end of the high-voltage insulating bushing 1111 is connected to one end of the bent pipe 1112 through a connecting flange. The other end of the bent pipe 1112 is connected to the rotary joint 112.

[0067] Specifically, the end of the bent pipe 1112 that faces away from the connecting flange is connected to the flange 1124.

[0068] Furthermore, in this embodiment, the high-voltage bushing 111 also includes a high-voltage connecting end cap 1114 and a support plate 1115. The high-voltage connecting end cap 1114 is disposed inside the high-voltage insulating bushing 1111 and connected to the connecting flange. The end of the conductive rod 70 inside the high-voltage insulating bushing 1111 is used to connect to the high-voltage connecting end cap 1114. The support plate 1115 is disposed inside the high-voltage insulating bushing 1111, and there is a predetermined distance between the support plate 1115 and the high-voltage connecting end cap 1114. The support plate 1115 is used to support the conductive rod 70 inside the high-voltage insulating bushing 1111.

[0069] In this configuration, the end of the conductive rod 70 inside the high-voltage insulating bushing 1111 that is away from the high-voltage connecting head 1114 passes through the rotary joint 112 and the connecting bushing 113 and is inserted into the three-way pipe 14, and is connected to the end of the first conductive post 80 inside the three-way pipe 14. The other end of the first conductive post 80 is connected to the basin insulator in the voltage transformer 13. One end of the second conductive post 90 inside the three-way pipe 14 is connected to the first conductive post 80, and the other end of the second conductive post 90 passes out of the three-way pipe 14 and is inserted into the horizontal high-voltage reactor 12, and is connected to the horizontal high-voltage reactor 12.

[0070] Specifically, the center line of the first conductive post 80 is set perpendicular to the center line of the second conductive post 90.

[0071] Continue to refer to Figure 10 and Figure 11 In this embodiment, the horizontal high-voltage reactor 12 includes a housing 121, a reactor body 122, a first fixing frame 123, and a second fixing frame 124. The housing 121 forms a rotating cavity 1211, which is filled with sulfur hexafluoride. The first fixing frame 123, the second fixing frame 124, and the reactor body 122 are all disposed in the rotating cavity 1211. One end of the reactor body 122 passes through the first fixing frame 123 and is inserted into the second fixing frame 124. The end of the housing 121 with the second fixing frame 124 is covered with a sealing plate 125. The end of the housing 121 away from the second fixing frame 124 is connected to the second end of the three-way pipe 14.

[0072] Specifically, the center line of the rotating cavity 1211 is perpendicular to the center line of the first conductive post 80, and the center line of the rotating cavity 1211 is parallel to the center line of the second conductive post 90. In some feasible embodiments, the center line of the rotating cavity 1211 and the center line of the second conductive post 90 are collinear.

[0073] The second conductive post 90, with its end away from the first conductive post, passes through the tee tube 14 and is inserted into the rotating cavity 1211, and is connected to the end of the reactor body 122 away from the sealing plate 125.

[0074] In this embodiment, the end of the housing 121 away from the sealing plate 125 is attached to the second end of the three-way pipe 14 and bolted together. The rotating cavity 1211 is connected to the three-way pipe 14. The first fixing frame 123 and the second fixing frame 124 are both annular. The outer peripheral walls of the first fixing frame 123 and the second fixing frame 124 are attached to the inner peripheral wall of the rotating cavity 1211. The first fixing frame 123 and the second fixing member are spaced apart along the center line of the rotating cavity 1211.

[0075] Furthermore, in this embodiment, the bottom of the end of the horizontal high-voltage reactor 12 away from the three-way pipe 14 is fixed to the top of the tracked vehicle 20 by a support block 30. The support block 30 has an arc-shaped groove 1131 that is adapted to the housing 121. The bottom of the end of the housing 121 away from the three-way pipe 14 is engaged in the arc-shaped groove 1131. The support block 30 is fixed to the top of the tracked vehicle 20 by fastening bolts.

[0076] Specifically, a flange 1212 is provided on the outer peripheral wall of the end of the housing 121 away from the tee pipe 14. The flange 1212 extends outward along the radial direction of the rotating cavity 1211. The sealing plate 125 is placed on the end of the housing 121 and connected to the flange 1212 by bolts.

[0077] Among them, the arc-shaped groove 1131 is adapted to the flange 1212. During use, the support block 30 is fixed on the frame 22, one end of the shell 121 is fixedly connected to the tee pipe 14, and the flange 1212 is locked in the arc-shaped groove 1131.

[0078] To further secure the horizontal high-voltage reactor 12, the bottom end of the sealing plate 125 is connected to the side wall of the top of the tracked vehicle 20 via the mounting bracket 40.

[0079] Specifically, taking the plane parallel to the center line of the rotating cavity 1211 as the cross section, the cross section of the mounting bracket 40 is L-shaped.

[0080] The vertical part of the mounting bracket 40 is attached to the outer side of the bottom end of the sealing plate 125 and connected by bolts. The bottom surface of the extended end of the bracket body 22 and the bottom surface of the sealing plate 125 are attached to the top surface of the horizontal part of the mounting bracket 40.

[0081] Continue to refer to Figure 1 and Figure 2The CVT all-terrain transformer calibration system 1 provided in this embodiment also includes a cover 100, which surrounds a cavity 104. The cover 100 is fastened to the frame 22, and the bottom end of the cover 100 is connected to the frame 22. The horizontal high-voltage reactor 12, voltage transformer 13 and three-way pipe 14 are all arranged in the cavity 104. The cover 100 has a rotating hole 103, which communicates with the cavity 104. The connecting sleeve 113 and the rotary joint 112 are both located in the cavity 104. The bent end of the high-voltage sleeve 111 passes through the rotating hole 103 and is inserted into the cavity 104 and connected to the rotary joint 112. The other end of the high-voltage sleeve 111 extends to the outside of the cover 100, and the high-voltage sleeve 111 can rotate relative to the cover 100.

[0082] To improve the aesthetics of the CVT all-terrain instrument transformer calibration system 1, the cover 100 has a recessed side with a rotating hole 103 to form a placement groove 101. When the high-voltage bushing 111 is in a horizontal state, the high-voltage bushing 111 is located in the placement groove 101.

[0083] To facilitate the inspection of the horizontal high-voltage reactor 12 and voltage transformer 13 inside the enclosure 100, an observation port 102 is provided at the front end of the enclosure 100, and the observation port 102 is connected to the accommodating cavity 104.

[0084] The usage process of the CVT all-terrain transformer calibration system 1 provided in this embodiment is as follows: The tracked vehicle 20 is driven to move by the control handle. The tracked vehicle 20 drives the calibration mechanism 10 to move to the designated position. The output shaft of the drive motor 1141 drives the drive gear 1143 to rotate. The drive gear 1143 drives the driven gear 1144 to rotate. The driven gear 1144 drives the rotating bushing 1121 and the high-voltage bushing 111 to rotate through the flange 1124. After the high-voltage bushing 111 rotates 90°, it rotates from a horizontal state to a vertical state. The top of the high-voltage bushing 111 contacts the CVT capacitive voltage transformer 13 on site. The horizontal high-voltage reactor 12 resonates with the CVT capacitive voltage transformer 13 on site to generate high voltage, so as to calibrate the CVT capacitive voltage transformer 13 on site.

[0085] The CVT all-terrain instrument transformer calibration system 1 provided in this application includes a calibration mechanism 10 and a tracked vehicle 20. The calibration mechanism 10 is located on the top of the tracked vehicle 20, which can drive the calibration mechanism 10 to move. The calibration mechanism 10 includes a rotatable and sealed high-voltage bushing assembly 11, a horizontal high-voltage reactor 12, and a voltage transformer 13. One end of the high-voltage bushing assembly 11 is connected to the first end of a three-way pipe 14. The high-voltage bushing assembly 11 can rotate relative to the three-way pipe 14 to make the high-voltage bushing assembly 11 horizontal or vertical. The second end of the three-way pipe 14 is connected to the horizontal high-voltage reactor 12, and the third end of the three-way pipe 14 is connected to the voltage transformer 13. By setting the rotatable and sealed high-voltage bushing assembly 11 and the horizontal high-voltage reactor 12, compared with the traditional sulfur hexafluoride closed-loop combined electrical system (GIS) for calibrating CVTs, the overall height of the all-terrain instrument transformer calibration device 1 is reduced, saving space and facilitating transportation and storage.

[0086] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0087] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A CVT all-terrain instrument transformer calibration system, characterized in that: Including the calibration mechanism and tracked vehicle; The calibration mechanism is located on the top of the tracked vehicle, and the tracked vehicle can drive the calibration mechanism to move. The verification mechanism includes a rotatable and sealable high-voltage bushing assembly, a horizontal high-voltage reactor, and a voltage transformer. One end of the high-voltage bushing assembly is connected to the first end of a three-way pipe. The high-voltage bushing assembly can rotate relative to the three-way pipe to make the high-voltage bushing assembly horizontal or vertical. The second end of the three-way pipe is connected to the horizontal high-voltage reactor, and the third end of the three-way pipe is connected to the voltage transformer.

2. The CVT all-terrain instrument transformer calibration system according to claim 1, characterized in that: The high-pressure bushing assembly includes a high-pressure bushing, a rotary joint, a connecting bushing, and a drive assembly. One end of the high-pressure bushing is connected to the rotary joint, the rotary joint is sleeved on the connecting bushing, the rotary joint can rotate relative to the connecting bushing, the rotary joint is sealed to the connecting bushing, and the end of the connecting bushing away from the high-pressure bushing is connected to the first end of the tee pipe. One end of the drive assembly is connected to the rotary joint. The drive assembly is used to drive the rotary joint to rotate. The rotation of the rotary joint drives the high-pressure bushing assembly to rotate, so that the high-pressure bushing assembly is in a horizontal or vertical state.

3. The CVT all-terrain instrument transformer calibration system according to claim 2, characterized in that: The rotary joint includes a rotating sleeve and a flange. At least one arc-shaped groove is formed on the inner peripheral wall of the rotating sleeve, and the arc-shaped groove extends along the circumference of the rotating sleeve. At least one arc-shaped groove is formed on the outer peripheral wall of the connecting sleeve, and the arc-shaped groove extends along the circumference of the connecting sleeve. The arc-shaped groove and the arc-shaped groove are correspondingly arranged. The arc-shaped groove and the arc-shaped groove together form a sealing groove. A sealing ring is placed in the sealing groove to make the rotating sleeve and the connecting sleeve sealed together. One end of the rotating sleeve is fitted to the flange and bolted together, one end of the high-pressure sleeve is connected to the flange, and one end of the drive assembly is fixed to the flange.

4. The CVT all-terrain instrument transformer calibration system according to claim 3, characterized in that: The rotary joint also includes a ball bearing. At least one rolling groove is provided on the outer peripheral wall of the connecting sleeve. The rolling groove extends along the circumference of the connecting sleeve. The rolling groove and the arc-shaped groove are spaced apart. The ball bearing is housed in the rolling groove and can roll along the rolling groove. The outer peripheral wall of the ball bearing is in contact with the inner peripheral wall of the rotary sleeve. When the rotating sleeve rotates relative to the connecting sleeve, the rotating sleeve drives the ball to rotate within the rolling groove.

5. The CVT all-terrain instrument transformer calibration system according to claim 2, characterized in that: The drive assembly includes a drive motor and a transmission mechanism. The output shaft of the drive motor is connected to one end of the transmission mechanism, and the other end of the transmission mechanism is connected to the rotary joint. The transmission mechanism includes a driving gear and a driven gear. The driving gear is connected to the output shaft of the drive motor, and the driven gear is connected to the rotary joint. The driving gear and the driven gear mesh with each other.

6. The CVT all-terrain instrument transformer calibration system according to claim 5, characterized in that: The driven gear is a semi-circular gear.

7. The CVT all-terrain instrument transformer calibration system according to claim 1, characterized in that: The horizontal high-voltage reactor includes a shell, a reactor body, a first fixing frame, and a second fixing frame. The shell is arranged to form a rotating cavity, which is filled with sulfur hexafluoride. The first fixing frame, the second fixing frame, and the reactor body are all disposed within the rotating cavity. One end of the reactor body passes through the first fixing frame and is inserted into the second fixing frame. The end of the shell with the second fixing frame is covered with a sealing plate. The end of the shell away from the second fixing frame is connected to the second end of the tee pipe.

8. The CVT all-terrain instrument transformer calibration system according to claim 7, characterized in that: The bottom of the horizontal high-voltage reactor at the end away from the tee pipe is fixed to the top of the tracked vehicle by a support block. The support block has an arc-shaped groove that matches the housing. The bottom of the housing at the end away from the tee pipe is engaged in the arc-shaped groove. The support block is fixed to the top of the tracked vehicle by fastening bolts.

9. The CVT all-terrain instrument transformer calibration system according to claim 8, characterized in that: The bottom end of the sealing plate is connected to the side wall of the top of the tracked vehicle via a mounting bracket.

10. The CVT all-terrain instrument transformer calibration system according to claim 9, characterized in that: The mounting bracket has an L-shaped cross-section.

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