A high-voltage column mounted reactive power compensation complete set capable of quickly replacing capacitors

Abstract

The invention discloses a high-voltage column mounted reactive power compensation complete set capable of quickly replacing capacitors, comprising a cabinet, a capacitor device, a contactor and a knife-edge structure. The capacitor device comprises a capacitor box rotatably connected to the cabinet via a rotating shaft, and a capacitor body installed in the capacitor box. The capacitor body has a conductive end cooperatively connected to the knife-edge structure, and an installation adjustment device movably installed on the capacitor box and connected to the capacitor body. By adopting the technical solution, the capacitor box can be rotated to open so as to replace the capacitor, and then the relative installation distance between the conductive end and the knife-edge structure can be adjusted by the installation adjustment device to ensure that the conductive end is accurately and reliably inserted into the knife-edge structure. The replacement operation is easy to achieve the effect of quickly changing the compensation capacity, so that the user's use needs can be met without replacing the entire reactive power compensation device, thereby reducing the manufacturing cost, having good practicality, and improving the product use performance.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution equipment, and in particular to a high-voltage column mounted reactive power compensation complete set capable of quickly replacing capacitors. Background Art

[0002] The main function of the reactive power compensation device is to compensate for the loss of reactive power from the power system in the power supply area. It is usually installed on a high-voltage pole and connected to the lines in the power system to increase the bus voltage and keep the system voltage within a relatively stable range. This is also an important guarantee for the power quality of the power supply system. However, the user-side load is constantly changing, so the required reactive power gap is also different. In this case, the reactive power compensation needs to take corresponding actions, respond with a more reasonable compensation capacity, and respond quickly.

[0003] Existing reactive power compensation devices are divided into a capacitor device and a cabinet switchgear. The cabinet switchgear includes devices such as circuit breakers, contactors, disconnectors, series reactors, lightning arresters, fuses, and relay protection devices installed in the cabinet. The capacity of the capacitor device is configured as a fixed value proportional to the rated capacity of the main transformer. When in use, the capacitor device is connected to the power grid through the switchgear as needed to provide reactive power compensation. When the power system voltage is low or there is a lack of reactive power, the device is activated to increase the voltage and compensate for reactive power. When the power system voltage is high or there is an excess of reactive power, the device is deactivated to lower the voltage and reduce reactive power. The purpose of voltage regulation and reactive power balance is achieved by switching the device on and off. During operation, the device can only be switched on or off at full capacity, making expansion difficult.

[0004] To sum up, the existing reactive power compensation device still has the following problems in actual use: the capacity of the capacitor device is fixed. Even if the capacity is changed by replacing the capacitor, the change in the capacity of the capacitor causes its volume to change, which causes the installation and connection position of the capacitor device in the switch cabinet to change accordingly. It can no longer be adapted and installed with electrical equipment such as contactors. Moreover, the traditional installation method requires disassembling the switch cabinet door and then removing the entire capacitor device. The operation process is cumbersome and difficult. It can be seen that the existing reactive power compensation device is usually not capable of capacitor replacement and has poor applicability. Therefore, the entire reactive power compensation device can only be replaced, which has high manufacturing costs and cannot better meet user needs. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the reactive compensation device in the prior art is usually unable to replace the capacitor, and only the entire reactive compensation device can be replaced, which has poor applicability, high manufacturing cost, and cannot better meet the user's needs. Thus, a reactive compensation device is provided that can replace capacitors of different capacities, the replacement operation is convenient and quick, and the position of the capacitor can be adjusted.

[0006] To solve the above technical problems, the present invention provides a high-voltage column-mounted reactive power compensation complete set with rapidly replaceable capacitors, comprising a cabinet, an electrical component unit mounted on the cabinet, and a capacitor device. The electrical component unit comprises a contactor and a blade structure connected between the contactor and the capacitor device. The contactor is used to control the on / off power supply of the capacitor device. The capacitor device comprises:

[0007] The capacitor box is connected to the cabinet body via a rotating shaft and can be rotated to a certain angle relative to the cabinet body;

[0008] A capacitor body is installed in the capacitor box opposite to the knife-edge structure and includes a conductive end that is cooperatively connected to the knife-edge structure;

[0009] The installation adjustment device can be movably installed on the capacitor box and connected to the capacitor body, and drives the capacitor body to move toward the knife-edge structure to adjust the relative installation distance between the conductive end and the knife-edge structure.

[0010] As a preferred solution, the installation and adjustment device includes a first adjustment structure for driving the capacitor body to move back and forth along a first connection direction so that the conductive end is connected to the knife-edge structure, and a second adjustment structure for driving the capacitor body to move back and forth along a second connection direction so that the conductive end is connected to the knife-edge structure, and the first connection direction is arranged perpendicular to the second connection direction.

[0011] As a preferred solution, the first connection direction is the height direction of the capacitor box, the second connection direction is the width direction of the capacitor box, and the conductive end is extended along the first connection direction.

[0012] As a preferred solution, the first adjustment structure includes a mounting platform, which is movably arranged in the capacitor box, and the capacitor body is placed on the mounting platform;

[0013] a first rocker, for rotating an operation panel provided on the capacitor box and connected to the mounting platform via at least one gear set;

[0014] The driven component is connected to the mounting platform along the first connection direction. The gear set is connected to the driven component and drives the driven component to drive the mounting platform to move along the first connection direction.

[0015] As a preferred solution, the gear set includes a first bevel gear arranged on the first rocker, a second bevel gear vertically meshing with the first bevel gear, and a worm coaxially linked with the second bevel gear; the driven component is a driving rod connected to the bottom of the mounting platform along the first connection direction, and a connecting hole arranged at one end of the driving rod, and a helical tooth structure cooperating with the worm is provided in the connecting hole.

[0016] As a preferred embodiment, the gear set includes a driving gear arranged on the first rocker arm, and at least one transmission gear connected between the driving gear and the driven component; the driven component includes a rack structure arranged at the bottom of the mounting platform along the first connection direction, and the rack structure cooperates with the transmission gear for transmission.

[0017] As a preferred solution, the second adjustment structure includes: a movable seat, which is arranged in the capacitor box opposite to the mounting platform in the upper and lower directions, and includes an accommodating groove extending along the first connection direction; the capacitor body is suitable for being accommodated in the accommodating groove, and can be moved up and down along the accommodating groove by being driven by the first adjustment structure; a second rocker, which is rotatably arranged on the operation panel of the capacitor box and is connected to the movable seat along the second connection direction through an adjusting screw structure, and the adjusting screw structure drives the movable seat to move along the second connection direction under the rotation drive of the second rocker.

[0018] As a preferred solution, the adjusting screw structure includes a screw portion connected to one end of the second rocker, and an adjusting nut or threaded hole correspondingly arranged on the movable seat, and the screw portion is connected to the adjusting nut or threaded hole along the second connection direction.

[0019] As a preferred solution, the blade structure includes two blades arranged opposite to each other, and the two blades form a clamping opening suitable for clamping the conductive end.

[0020] As a preferred solution, the electrical component unit also includes a knife switch device installed in the cabinet and connected to the capacitor body, the knife switch device includes a grounding knife arranged on the knife seat, and a resistance structure connected to the grounding knife; the operating panel is provided with an operating shaft for driving the grounding knife to open or close, and is also provided with an electrical button for controlling the on and off operation of the contactor.

[0021] As a preferred solution, a limiting structure for limiting the rotation of the first rocker arm and the second rocker arm is respectively arranged between the first rocker arm and the second rocker arm and the operating panel, and the limiting structure includes a plurality of limiting holes densely distributed on the operating panel along the circumferential rotation trajectory of the first rocker arm and the second rocker arm, and a limiting rod that passes through the first rocker arm or the second rocker arm and is inserted into the limiting hole to lock.

[0022] The technical solution of the present invention has the following advantages over the prior art:

[0023] 1. In the reactive power compensation complete set provided by the present invention, when replacing capacitor devices of different capacities, the capacitor device is first powered off by controlling the contactor, and after the capacitor device is discharged, the conductive end of the capacitor is disconnected from the blade structure and exposed to the cabinet by rotating the capacitor box relative to the cabinet to open it at a certain angle, so that the capacitor body is conveniently removed. After the new capacitor is reinstalled into the capacitor box and closed, the capacitor body is driven to move toward the blade structure by operating the installation adjustment device to compensate for the installation position deviation between the conductive end and the blade structure, ensuring that the conductive end is accurately and reliably connected to the blade structure, thereby adjusting the installation distance between different capacitors and the blade structure. With this technical solution, only the capacitor body of different capacities needs to be replaced. The replacement operation is easy and convenient, so as to achieve the effect of quickly changing the compensation capacity of this product, thereby meeting the user's usage needs without replacing the entire reactive power compensation complete set, reducing manufacturing costs, and having good practicality and compatibility, which helps to achieve product upgrades and improve product performance.

[0024] 2. In the reactive power compensation device provided by the present invention, when the capacitor becomes larger or smaller due to a change in capacity, the distance between the conductive end and the blade structure can be adjusted by driving the capacitor body to move along the first connection direction for adjustment through the first adjustment structure, or by driving the capacitor body to move along the second connection direction for adjustment through the second adjustment structure, or by combining the first adjustment structure and the second adjustment structure to adjust the position of the capacitor body in multiple directions. According to the first connection direction and the second connection direction, respectively, the capacitor body is driven to be displaced up and down and left and right along the height and width directions of the capacitor box, so that the capacitor body can be displaced in multiple directions within the cabinet, thereby driving the conductive end to move close to the position of the blade structure. The advantage of this design is that even if different capacitors are replaced, the conductive end can be connected to the guide structure with the help of the first adjustment structure and the second adjustment structure, avoiding the installation position restriction of capacitors of different sizes and being suitable for capacitors of different capacities. The design is reasonable and the adjustment operation is convenient and reliable.

[0025] 3. In the reactive power compensation complete set provided by the present invention, the second rocker is connected to the movable seat along the second connection direction through the adjustment screw structure. When the second rocker set on the operation panel is shaken, the rotational motion of the second rocker is converted into the linear motion of the movable seat along the second connection direction. According to the limit of the capacitor body, it is installed in the accommodating groove of the movable seat, so that the movable seat drives the capacitor located in the accommodating groove to move along the second connection direction. In addition, the movable seat and the mounting seat are arranged relative to each other in the upper and lower directions, and the mounting seat serves as an installation support for the capacitor body. This structural setting adopts the transmission method of the screw structure to realize the displacement adjustment of the capacitor body along the width direction of the capacitor box, that is, the left and right position adjustment relative to the knife-edge structure in the cabinet.

[0026] 4. In the reactive power compensation device provided by the present invention, the first rocker provided on the operation panel is shaken, and the motion and force are transmitted between the first rocker and the driven component through the gear set, so that the rotational motion of the first rocker is converted into the linear motion of the driven component along the first connection direction. According to the driven component being connected to the mounting platform along the first connection direction, the driven component drives the capacitor on the mounting platform to move along the first connection direction under the drive of the gear set. This structural setting can increase the transmission torque and change the torque transmission direction through the transmission method of the gear set, thereby realizing the displacement adjustment of the capacitor body along the height direction of the capacitor box, that is, the up and down position adjustment relative to the knife-edge structure in the cabinet.

[0027] 5. In the reactive power compensation complete set provided by the present invention, after the conductive end and the blade structure of the capacitor body are installed, the limiting rod is inserted through the first rocker arm or the second rocker arm into the limiting hole on the operation panel and locked, thereby preventing the first rocker arm or the second rocker arm from rotating again and preventing the installed capacitor body from moving in the cabinet. The limiting holes are densely distributed on the operation panel according to the circular rotation trajectory of the rocker arm, which can well adapt to the rocker arm at different angular positions, thereby playing a role of limiting and locking the rocker arm, and ensuring safe and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic structural diagram of the reactive power compensation complete set provided by the present invention;

[0030] Figure 2is a structural schematic diagram of the first regulating structure of the present invention;

[0031] Figure 3 is another structural schematic diagram of the first regulating structure of the present invention;

[0032] Figure 4 is a schematic structural diagram of the second regulating structure of the present invention;

[0033] Explanation of the accompanying drawings: 1-cabinet, 11-insulating column, 2-capacitor device, 20-rotating shaft, 21-capacitor box, 22-capacitor body, 23-conductive end, 24-operating panel, 3-contactor, 31-electrical button, 4-knife edge structure, 5-first adjustment structure, 51-mounting table, 52-first rocker, 53-gear set, 531-first bevel gear, 532-second bevel gear, 533-worm, 534-driving gear, 535-transmission gear, 54-driven component, 6-second adjustment structure, 61-moving seat, 62-second rocker, 63-adjusting screw structure, 631-screw part, 64-accommodating groove, 7-knife switch device, 71-grounding knife, 72-resistance structure, 73-operating shaft, 81-limiting hole, 82-limiting rod. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] In the description of the present invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components.

[0036] Example 1

[0037] The present embodiment will be described in detail below with reference to the accompanying drawings:

[0038] This embodiment provides Figure 1-4The illustrated high-voltage column-mounted reactive power compensation device with rapidly replaceable capacitors comprises a cabinet 1, an electrical component unit mounted on the cabinet 1, and a capacitor device 2. The electrical component unit comprises a contactor 3 and a blade structure 4 connected between the contactor 3 and the capacitor device 2. The blade 4 electrically connects the contactor 3 to the capacitor device 2. The contactor 3 is used to control the on / off switching of the capacitor device 2. The capacitor device 2 comprises a capacitor box 21 connected to the cabinet 1 via a rotating shaft 20 and rotatable relative to the cabinet 1 to a certain angle.

[0039] The capacitor body 22 is installed in the capacitor box 21 opposite to the knife-edge structure 4 and includes a conductive end 23 that is connected to the knife-edge structure 4;

[0040] The installation adjustment device can be movably installed on the capacitor box 21 and connected to the capacitor body 22, and drives the capacitor body 22 to move toward the knife-edge structure 4 to adjust the relative installation distance between the conductive end 23 and the knife-edge structure 4.

[0041] When replacing a capacitor device of a different capacity with the reactive power compensation complete set of this embodiment, the contactor 3 is first used to control the de-energization of the capacitor device 2. After the capacitor device is discharged, the capacitor box 21 can be rotated to a certain angle relative to the cabinet body by rotating it, so that the conductive end of the capacitor is disconnected from the blade structure and exposed to the cabinet body. This facilitates the removal of the capacitor body 22. The new capacitor is then reinstalled into the capacitor box and closed. The installation adjustment device is then operated to drive the capacitor body 22 toward the blade structure 4 to compensate for the installation position deviation between the conductive end 234 and the blade structure, ensuring that the conductive end 23 is accurately and reliably connected to the blade structure 4, thereby adjusting the installation distance between different capacitors and the blade structure. With this technical solution, only the capacitor body of different capacity needs to be replaced. The replacement operation is easy and convenient, so that the compensation capacity of this product can be quickly changed. Therefore, the user's usage needs can be met without replacing the entire reactive power compensation complete set, reducing manufacturing costs, improving practicality and compatibility, and helping to achieve product upgrades and improve product performance.

[0042] The following combination Figure 1-4 The specific setting method of the installation and adjustment device is described in detail:

[0043] The mounting adjustment device includes a first adjustment structure 5 that drives the capacitor body 22 to move back and forth along a first connection direction so that the conductive end 23 is connected to the knife-edge structure 4, and a second adjustment structure 6 that drives the capacitor body 22 to move back and forth along a second connection direction so that the conductive end 23 is connected to the knife-edge structure 4. The first connection direction is perpendicular to the second connection direction. For specific reference, Figure 1 The first connection direction is the height direction of the capacitor box 21, and the second connection direction is the width direction of the capacitor box 21. The conductive end 23 is extended along the first connection direction, and the knife-edge structure 4 is mounted above the conductive end through the insulating column 11. Therefore, when the capacitor becomes larger or smaller due to the change of capacity, the relative distance length and width between the conductive end and the knife-edge structure are easily changed. As for the distance adjustment between the relative position of the conductive end 23 and the knife-edge structure 4, the distance can be adjusted by driving the capacitor body 22 to move along the first connection direction by the first adjustment structure 5, or by driving the capacitor body 22 to move along the second connection direction by the second adjustment structure 6, or by combining the first adjustment structure 5 and the second adjustment structure 6. The adjustment structure and the second adjustment structure jointly adjust the position of the capacitor body in multiple directions. The first connection direction and the second connection direction are respectively the height direction and the width direction of the capacitor box 21, that is, the capacitor body 22 is driven to perform displacement adjustment up and down and left and right along the height and width directions of the capacitor box 21, so as to realize displacement adjustment of the capacitor body 22 along multiple position directions in the cabinet, thereby driving the conductive end 23 to move close to the position of the blade structure 4. The advantage of this design is that even if different capacitors are replaced, the conductive end and the guide structure can be connected with the help of the first adjustment structure and the second adjustment structure, avoiding the installation position restriction of capacitors of different sizes, and being suitable for capacitors of different capacities. The design is reasonable and the adjustment operation is convenient and reliable.

[0044] The following combination Figure 1-3The specific structure of the first adjustment structure is described in detail: the first adjustment structure 5 includes a mounting platform, a first rocker and a driven component, wherein the mounting platform 51 is movably arranged in the capacitor box 21, and the capacitor body 22 is placed on the mounting platform 51, and the mounting platform serves as a mounting support for the bottom of the capacitor body; the first rocker 52 rotates the operation panel 24 set on the capacitor box 21, and is connected to the mounting platform 51 through at least one set of gear sets 53; the driven component 54 connects the mounting platform 51 and the gear set 53 along the first connection direction, and the driven component 54 drives the mounting platform 51 to move along the first connection direction under the drive of the gear set 53. It can be seen from the above-mentioned structural setting that by shaking the first rocker 52 on the operating panel 24, the motion and force are transmitted between the first rocker 52 and the driven component 54 through the gear set 53, and the rotational motion of the first rocker 52 is converted into the linear motion of the driven component 54 along the first connection direction. According to the driven component being connected to the mounting platform 51 along the first connection direction, the driven component 54 drives the capacitor on the mounting platform 51 to move along the first connection direction under the drive of the gear set. This structural setting can increase the transmission torque and change the torque transmission direction through the transmission method of the gear set 53, thereby realizing the displacement adjustment of the capacitor body along the height direction of the capacitor box, that is, the conductive end is adjusted up and down relative to the knife-edge structure in the cabinet.

[0045] As a specific structural setting, such as Figure 2 As shown, the gear set 53 includes a first bevel gear 531 arranged on the first rocker 52, a second bevel gear 532 vertically meshing with the first bevel gear 531, and a worm 533 coaxially linked with the second bevel gear 532. It is further provided that the driven component 54 is a driving rod connected to the bottom of the mounting platform 51 along the first connection direction, and a connecting hole is provided at one end of the driving rod facing the worm 533. A helical tooth structure cooperating with the worm 534 is provided in the connecting hole, and a guide rail structure for guiding the movement of the mounting platform is provided between the mounting platform 51 and the capacitor box 21. The advantage of this design is that the direction of the torque is changed by the cooperation between the first bevel gear 531 and the second bevel gear 532, and the torque from the first rocker is transmitted to the worm 533 extending along the first connection direction. When the worm 533 rotates with the second bevel gear, it drives the drive rod to move back and forth along the first connection direction through the cooperation with the spiral tooth structure, thereby driving the mounting table to move linearly, and finally achieving the purpose of adjusting the position of the capacitor body along the height direction of the capacitor box.

[0046] As an alternative to the gear set, Figure 3As shown, the gear set 53 includes a driving gear 534 disposed on the first rocker 52 and at least one transmission gear 535 connected between the driving gear 534 and the driven component 54. The number of transmission gears can be selected based on the connection distance between the driving gear and the driven component, thereby increasing both the transmission distance and the transmission torque. Furthermore, the driven component 54 is a rack structure disposed at the bottom of the mounting platform along the first connection direction. The rack structure cooperates with the transmission gear 535 for transmission, and the driving gear 534 and the transmission gears are respectively meshed with circular gears. With this structural arrangement, the first rocker 52 drives the transmission gear to rotate via the driving gear 534, and the transmission gear 535 drives the rack structure to reciprocate along the first connection direction, thereby driving the mounting platform 51 to linear motion, ultimately achieving the purpose of adjusting the position of the capacitor body 22 along the height direction of the capacitor box 21. Those skilled in the art will be able to select a specific arrangement for the gear set 53 and the driven component 54 based on the above description, and other equivalent embodiments are not described in detail here.

[0047] The following combination Figure 1 and Figure 4 The specific structure of the second regulating structure is described in detail:

[0048] The second adjustment structure 6 includes: a moving seat 61, a second rocker 62 and an adjustment screw structure 63 arranged between the moving seat and the second rocker, wherein the moving seat 61 is arranged in the capacitor box 21 relative to the mounting platform 51 up and down, and includes an accommodating groove 64 extending along the first connection direction, and the capacitor body 22 is suitable for being accommodated in the accommodating groove 64, wherein the moving distance of the moving seat 61 does not exceed the area range of the mounting platform 51, so that the end of the capacitor body 22 that penetrates the accommodating groove abuts against the mounting seat, and the mounting platform plays a mounting support role for the capacitor body. When the capacitor body is driven by the first adjustment structure 5, it can move up and down along the accommodating groove. The capacitor body 22 designed in this way can be moved between the mounting seat and the moving seat without interfering with each other's movement, with a reasonable design and reliable cooperation.

[0049] It is further provided that the second rocker 62 is rotatably provided on the operation panel 24 of the capacitor box 21, and is connected to the movable seat 61 along the second connection direction through the adjusting screw structure 63. The adjusting screw structure 63 drives the movable seat 61 to move along the second connection direction under the drive of the second rocker 62. This structural arrangement converts the rotational motion of the second rocker 62 into a linear motion of the movable seat 61 along the second connection direction when the second rocker on the operation panel is shaken. The capacitor body 22 is limitedly installed in the accommodating groove of the movable seat 61, so that the movable seat drives the capacitor located in the accommodating groove 64 to move together along the second connection direction. The transmission method of the screw structure is adopted to realize the displacement adjustment of the capacitor body 22 along the width direction of the capacitor box 21, that is, the left and right position adjustment of the conductive end relative to the knife-edge structure in the cabinet.

[0050] As a specific structural setting, the adjustment screw structure 63 includes a screw portion 631 connected to one end of the second rocker, and an adjustment nut or threaded hole correspondingly provided on the movable seat 61. The screw portion 631 is connected to the adjustment nut or threaded hole along the second connection direction. The adjustment nut can be provided at the bottom of the movable seat 61. When the screw portion 631 rotates with the second rocker 62, it drives the movable seat to move back and forth along the second connection direction through threaded engagement. In this embodiment, an installation gap is left between the accommodating groove 64 and the capacitor body 22, which not only meets the installation requirements of capacitors of different sizes, but also facilitates the movement of the capacitor body. Of course, the size of the accommodating groove can also be adjusted. A mounting baffle 65 that is movable and adjustable along its width direction is provided on one side of the accommodating groove 64. The position of the mounting baffle is adjusted according to the size of different capacitors, so that the capacitor body located in the accommodating groove can be tightened or loosened.

[0051] As an advantageous embodiment, the blade structure 4 includes two blades arranged opposite to each other, which form a clamping opening suitable for clamping the conductive end 23, so that the conductive end maintains close contact with the blade structure, and has good installation stability.

[0052] Combine Figure 1-2 、 Figure 4As shown, the electrical component unit also includes a knife switch device 7 installed in the cabinet 1 and connected to the capacitor body 22. The knife switch device 7 includes a grounding knife 71 provided on the knife seat, and a resistor structure 72 connected to the grounding knife 71. The capacitor device is connected to the knife switch device 7 through a line. The operating panel 24 is provided with an operating shaft 73 for driving the grounding knife to open or close, and an electrical button 31 for controlling the on-off operation of the contactor 3. With this structural arrangement, when replacing the capacitor device 2, first press the operating button 73. The electrical button 31 on the panel 24 cuts off the power to the contactor 3, thereby realizing the power-off operation of the capacitor device; then the operating shaft 73 is used to drive the grounding knife of the knife switch device 7 to close, and the capacitor is closed and discharged through the resistance structure to realize the discharge operation of the capacitor device; finally, the capacitor box 21 is rotated open to separate the knife edge structure 4 and the conductive end 23 when they are not powered, and the operation is safe and reliable. In this way, the capacitor body 22 can be easily removed from the cabinet 1 for replacement, thereby realizing the subsequent replacement operation of the capacitor device, which complies with relevant electrical operation regulations.

[0053] In this embodiment, in order to ensure that the capacitor device with adjusted position is not misoperated, a limiting structure for limiting the rotation of the first rocker 52 and the second rocker 62 is respectively provided between the first rocker 52 and the second rocker 62 and the operation panel 24. The limiting structure includes a plurality of limiting holes 81 densely distributed on the operation panel 24 along the circumferential rotation trajectory of the first rocker 52 and the second rocker 62, and a limiting rod 82 that passes through the first rocker 52 or the second rocker 62 and is inserted into the limiting hole 81 and locked. The advantage of this design is that when the capacitor body is After the conductive end is connected to the blade structure, the limiting rod is passed through the first rocker or the second rocker and inserted into the limiting hole on the operation panel to lock it. The locking method can use a snap-fit ​​structure between the limiting rod and the end of the rocker to keep the relative position fixed, which can prevent the first rocker 52 or the second rocker 62 from rotating again, and prevent the installed capacitor body 22 from moving in the cabinet. The limiting holes 81 are densely distributed on the operation panel 24 according to the circular rotation trajectory of the rocker, so that it can adapt well to rockers at different angles, thereby playing a role of limiting and locking the rocker, and the operation is safe and reliable.

[0054] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A high-voltage column mounted reactive power compensation complete set capable of quickly replacing capacitors, comprising a cabinet (1), and an electrical component unit and a capacitor device (2) mounted on the cabinet (1), wherein the electrical component unit comprises a contactor (3) and a knife-edge structure (4) connected between the contactor (3) and the capacitor device (2), wherein the contactor (3) is used to control the on and off of the capacitor device (2), and ... and wherein the electrical component unit comprises a contactor (3) and a knife-edge structure (4) connected between the contactor (3) and the capacitor device (2), and wherein the electrical component unit comprises a contactor (3) and a knife-edge The capacitor device (2) comprises: a capacitor box (21), which is connected to the cabinet (1) via a rotating shaft (20) and can be rotated to open a certain angle relative to the cabinet (1); a capacitor body (22), which is installed in the capacitor box (21) opposite to the knife-edge structure (4), and includes a conductive end (23) that is matched and connected to the knife-edge structure (4); an installation adjustment device, which can be movably installed in the capacitor box (21) and connected to the capacitor body (22), and drives the capacitor body (22) to move in the direction of the knife-edge structure (4) to adjust the relative installation distance between the conductive end (23) and the knife-edge structure (4); The mounting adjustment device comprises a first adjustment structure (5) for driving the capacitor body (22) to reciprocate along a first connection direction so that the conductive end (23) is connected to the knife-edge structure (4), and a second adjustment structure (6) for driving the capacitor body (22) to reciprocate along a second connection direction so that the conductive end (23) is connected to the knife-edge structure (4), wherein the first connection direction is arranged perpendicular to the second connection direction; the first adjustment structure (5) comprises a mounting platform (51) movably arranged in the capacitor box (21), and the capacitor body (22) is placed on the mounting platform (51); a first rocker (52) rotatably arranged in the mounting platform The operating panel (24) of the capacitor box (21) is connected to the mounting platform (51) through at least one gear set (53); a driven component (54) connects the mounting platform (51) and the gear set (53) along the first connection direction, and the driven component (54) drives the mounting platform (51) to move along the first connection direction under the drive of the gear set; wherein the gear set (53) includes a first bevel gear (531) arranged on the first rocker (52), a second bevel gear (532) vertically meshed with the first bevel gear (531), and a worm (533) coaxially linked with the second bevel gear (532). ); the driven component (54) is a driving rod connected to the bottom of the mounting platform along the first connection direction, and a connecting hole is arranged at one end of the driving rod, and a helical tooth structure cooperating with the worm (533) is arranged in the connecting hole; another type of the gear set (53) includes a driving gear (534) arranged on the first rocker (52), and at least one transmission gear (535) transmission-connected between the driving gear (534) and the driven component (54); the driven component (54) is a rack structure arranged at the bottom of the mounting platform along the first connection direction, and the rack structure cooperates with the transmission gear (535) for transmission.

2. According to the high-voltage column mounted reactive power compensation device capable of quickly replacing capacitors as described in claim 1, it is characterized in that: The first connection direction is the height direction of the capacitor box (21), the second connection direction is the width direction of the capacitor box (21), and the conductive end (23) is extended along the first connection direction.

3. The high-voltage column mounted reactive power compensation complete set of devices capable of quickly replacing capacitors according to any one of claims 1 to 2, characterized in that: The second adjustment structure (6) comprises: a movable seat (61) arranged in the capacitor box (21) opposite to the mounting platform (51) in the upper and lower directions, and comprising a receiving groove (64) extending along the first connection direction; the capacitor body (22) is suitable for being received in the receiving groove (64), and can be moved up and down along the receiving groove under the drive of the first adjustment structure (5); a second rocker (62) is rotatably arranged on the operation panel (24) of the capacitor box (21), and is connected to the movable seat (61) along the second connection direction through an adjustment screw structure (63), and the adjustment screw structure (63) drives the movable seat (61) to move along the second connection direction under the drive of the second rocker (62).

4. According to claim 3, the high-voltage column mounted reactive power compensation device capable of quickly replacing capacitors is characterized in that: The adjusting screw structure (63) comprises a screw portion (631) connected to one end of the second rocker, and an adjusting nut or a threaded hole correspondingly arranged on the movable seat (61), and the screw portion (631) is connected to the adjusting nut or the threaded hole along the second connection direction.

5. According to claim 1, the high-voltage column mounted reactive power compensation device with fast capacitor replacement is characterized in that: The blade structure (4) comprises two blades arranged opposite to each other, and the two blades are opposite to each other to form a clamping opening suitable for clamping the conductive end (23).

6. According to claim 5, the high-voltage column mounted reactive power compensation device with fast capacitor replacement is characterized in that: The electrical component unit also includes a knife switch device (7) installed in the cabinet (1) and connected to the capacitor body (22), the knife switch device (7) including a grounding knife (71) arranged on a knife seat, and a resistor structure (72) connected to the grounding knife (71); the operating panel (24) is provided with an operating shaft (73) for driving the grounding knife to open or close, and is also provided with an electrical button (31) for controlling the on and off operation of the contactor (3).

7. The high-voltage column mounted reactive power compensation complete set of devices capable of quickly replacing capacitors according to any one of claims 3 to 6, characterized in that: A limiting structure for limiting the rotation of the first rocking arm (52) and the second rocking arm (62) is respectively arranged between the first rocking arm (52) and the second rocking arm (62) and the operating panel (24), and the limiting structure comprises a plurality of limiting holes (81) densely distributed on the operating panel (24) along the circumferential rotation trajectory of the first rocking arm (52) and the second rocking arm (62), and a limiting rod (82) passing through the first rocking arm (52) or the second rocking arm (62) and inserted into the limiting hole (81) for locking.

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