Capacitor compensation cabinet for realizing concentrated discharge of capacitor

Abstract

The utility model discloses a capacitor compensation cabinet of realizing capacitor centralized discharge, including the cabinet body, is provided with a plurality of circuit breaker, connector and capacitor who sets up along a straight line in the cabinet body, and every capacitor and every circuit breaker are connected to the downstream and upstream of connector respectively, its characterized in that: discharge assembly is installed in the cabinet body, the discharge assembly includes mounting bracket and connecting rod, be provided with the resistor piece of corresponding capacitor number setting on the connecting rod, the resistor piece both ends are connected with the plug, the connecting rod is connected on the mounting bracket, and the plug of every electronic piece both ends can be controlled to be away from or abut on the contact of capacitor and connector connection.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment technology, and in particular relates to a capacitor compensation cabinet for realizing centralized discharge of capacitors. Background Technology

[0002] Capacitor compensation cabinets are devices used in power systems to balance inductive loads. They use parallel capacitors to offset inductive currents, improve the power factor of the power grid, thereby reducing line losses and improving voltage quality.

[0003] When replacing compensation capacitors or repairing compensation capacitor cabinets, the capacitors must be discharged before the repair can continue. In practice, repair technicians usually discharge the capacitors by connecting a small light bulb or resistance wire with a lead wire to the capacitor terminals.

[0004] When replacing compensation capacitors or repairing compensation capacitor cabinets, it is usually necessary to discharge all capacitors, which takes a lot of time for repair technicians. At the same time, there are also situations where the small light bulb (resistance wire) is forgotten, lost, or damaged. Based on the above problems, the applicant designed a solution that can be installed in the compensation cabinet to achieve simultaneous discharge of multiple capacitors. Utility Model Content

[0005] The purpose of this invention is to provide a capacitor compensation cabinet that enables centralized discharge of capacitors, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention employs the following technical solution: a capacitor compensation cabinet for centralized capacitor discharge, comprising a cabinet body, wherein a plurality of circuit breakers, connectors, and capacitors are arranged along a straight line within the cabinet body, wherein each capacitor and each circuit breaker are respectively connected to the downstream and upstream of the connector, and a discharge assembly is installed within the cabinet body, the discharge assembly comprising a mounting frame and a connecting rod, wherein a resistor element corresponding to the number of capacitors is provided on the connecting rod, wherein plugs are connected to both ends of the resistor element, and the connecting rod is connected to the mounting frame and is capable of controlling the plugs at both ends of each electronic component to move away from or abut against the contacts connecting the capacitor and the connector.

[0007] Preferably, the mounting bracket includes a storage groove, a telescopic plate, and a rotating plate. The telescopic plate slides within the storage groove, the rotating plate is rotatably connected to the end of the telescopic plate that extends out of the storage groove, and the connecting rod is connected to the rotating plate.

[0008] Preferably, the capacitor has at least two terminals, and the plug at one end of each resistor is fixed to a slide bar one, and the plug at the other end is fixed to a slide bar two. Both slide bars one and slide bar two are slidably connected to a connecting rod.

[0009] Preferably, the connecting rod has a receiving groove, and both the sliding rod one and the sliding rod two are disposed in the receiving groove and slide within the receiving groove. The sliding rod one is provided with a first lever, and the sliding rod two is provided with a second lever.

[0010] Preferably, the connecting rod has an extension groove that extends through to the receiving groove, and the two plugs on the resistor extend from the extension groove and can slide along the extension groove in the length direction of the connecting rod.

[0011] Preferably, a baffle is detachably connected to the connecting rod. The baffle has a sliding groove one and a sliding groove two along the length of the connecting rod. The sliding rod one overlaps the sliding groove one, and the sliding rod two overlaps the sliding groove two.

[0012] Preferably, the plugs at both ends of the resistor are fixed to a sliding block, which slides within the receiving groove and cannot disengage from the limiting groove under the limiting action of the baffle.

[0013] Preferably, the baffle is engraved with lines to indicate position, and the first and second levers are provided with protrusions that align with the engraved lines.

[0014] Preferably, the storage groove is inclined to a horizontal plane to prevent the telescopic plate from slipping off; The storage slide is provided with a limiting component, and the telescopic plate is provided with a limiting protrusion that works in conjunction with the limiting component. When the telescopic plate extends out of the storage slide and reaches the position where the plug on the connecting rod can abut against the end of the contact that connects to the capacitor and the connector, the limiting protrusion abuts against the limiting component to achieve the limiting function.

[0015] Preferably, the end of the plug used to abut against the contacts of the capacitor and connector is fixed with a resilient conductive element.

[0016] The beneficial effects of this utility model are as follows: This solution sets up a discharge component, and controls the two ends of multiple resistors to abut against the capacitor terminals and the contacts connected by the connector through the connecting rod to achieve the discharge of multiple capacitors, which effectively improves the discharge efficiency. Moreover, the discharge component set in the cabinet does not require the maintenance technician to bring small light bulbs (resistance wires) and avoids the occurrence of loss and other problems. In this system, by setting up slide rod one and slide rod two, slide rod one drives slide rod two to move the plugs at both ends of the resistor, thereby adjusting the position of the plugs at both ends of several resistors, and thus enabling the discharge of multi-terminal capacitors. The flexible conductive element prevents hard contact between the plugs at both ends of the resistor and the connector contacts, ensuring the connection between the two ends of the plug. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of the telescopic plate and rotating plate in this utility model when they retract into the storage groove. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the telescopic plate and rotating plate in this utility model when they retract into the storage groove. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the telescopic plate and the rotating plate extending into the storage groove in this utility model; Figure 4 This is a schematic diagram showing the positional relationship of the telescopic slide groove in this utility model; Figure 5 This is a schematic diagram of the discharge assembly in this utility model; Figure 6 This is a schematic diagram of the mounting bracket in this utility model; Figure 7 This is a schematic diagram of the connecting rod in this utility model; Figure 8 This is a schematic diagram of the resistive component in this utility model; In the diagram: 1. Cabinet; 2. Capacitor; 3. Connector; 4. Circuit breaker; 5. Storage slide; 51. Connecting screw hole; 52. Limiting component; 6. Connecting rod; 61. Extension slot; 7. Telescopic plate; 71. Limiting protrusion; 8. Rotating plate; 81. Connecting shaft; 9. Baffle; 91. Sliding groove one; 92. Sliding groove two; 10. Slide rod one; 11. Slide rod two; 14. Toggle block one; 15. Toggle block two; 16. Protrusion; 18. Score line; 19. Resistor; 191. Resistor; 192. Sliding block; 193. Elastic conductive component; 20. Handle. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0019] Example: See Figures 1-3A capacitor 2 compensation cabinet for centralized capacitor discharge includes a cabinet 1. The cabinet 1 contains several circuit breakers 4, connectors 3, and capacitors 2 arranged along a straight line. Each capacitor 2 and each circuit breaker 4 is connected downstream and upstream of the connector 3, respectively. The connection of the circuit breaker 4, connector 3, and capacitor 2 is conventional and will not be described herein. A discharge assembly is installed inside the cabinet 1. The discharge assembly includes a mounting frame and a connecting rod 6. Resistors 19, corresponding to the number of capacitors 2, are mounted on the connecting rod 6. Plugs are connected to both ends of each resistor 19. The connecting rod 6 is connected to the mounting frame and can control the plugs at both ends of each electronic component to move away from or abut against the contacts connecting the capacitor 2 and the connector 3.

[0020] Among them, see Figure 4 , Figure 5 , Figure 6 The mounting bracket includes a storage slide 5, a telescopic plate 7, and a rotating plate 8. The telescopic plate 7 slides within the storage slide 5. The rotating plate 8 is rotatably connected to the end of the telescopic plate 7 extending out of the storage slide 5 via a connecting shaft 81. A connecting rod 6 is connected to the rotating plate 8. Specifically, several mounting strips (not shown) are installed inside the cabinet 1. The storage slide 5 is fixed to the mounting strips, and the storage slide 5 is inclined horizontally to prevent the telescopic plate 7 from slipping off. The angle is preferably within 5 degrees. The storage slide 5 is a rectangular tube. The telescopic plate 7 is inserted into the storage slide 5 and can slide within it. A limiting member 52 is provided on the storage slide 5. The limiting member 52 can be a bolt. A through-hole is made in the storage slide 5 to allow the extension plate to slide through the storage slide 5. Connect the screw hole 51 and screw the limiting member 52 into the screw hole 51. The telescopic plate 7 is provided with a limiting protrusion 71 that works with the limiting member 52. It is located at one end of the telescopic plate 7. The limiting member 52 does not affect the normal sliding of the telescopic plate 7 in the storage groove 5. The limiting protrusion 71 only abuts against the limiting member 52 when the telescopic plate 7 extends out of the storage groove 5 and reaches the end of the plug on the connecting rod 6 that can abut against the contacts of the capacitor 2 and the connector 3 to achieve the limiting function. In addition, when designing, the friction between the telescopic plate 7 and the storage groove 5 should be increased so that the telescopic plate 7 will not retract into the storage groove 5 under slight force. For example, an interference fit design should be considered.

[0021] Among them, see Figure 5 , Figure 7The capacitor 2 has at least two terminals. For example, in this embodiment, a three-terminal capacitor 2 is used. For this type of capacitor 2, it is necessary to connect each terminal to a resistor 19 separately. Therefore, this application designs that the plug at one end of each resistor 19 is fixed to a slide bar 10, and the plug at the other end is fixed to a slide bar 11. The slide bar 10 and the slide bar 11 are slidably connected to the connecting rod 6. The connecting rod 6 has a receiving groove. The slide bar 10 and the slide bar 11 are both disposed in the receiving groove and slide in the receiving groove. The slide bar 10 is provided with a toggle block 14, and the slide bar 11 is provided with a toggle block 15.

[0022] The connecting rod 6 has an extension groove 61 that extends through to the receiving groove. The two plugs on the resistor 19 extend from the extension groove 61 and can slide along the extension groove 61 in the length direction of the connecting rod 6.

[0023] A baffle 9 is detachably connected to the connecting rod 6. The baffle 9 has a sliding groove 91 and a sliding groove 92 along the length of the connecting rod 6. The sliding rod 10 passes through the sliding groove 91 and the sliding rod 11 passes through the sliding groove 92. The baffle 9 can be fixed to the connecting rod 6 by bolts or the like. The sliding groove 91 and the sliding groove 92 serve as a single-axis direction limit.

[0024] In this embodiment, the plugs at both ends of the resistor 19 are respectively fixed to a sliding block 192. The sliding block 192 slides within the receiving groove and cannot disengage from the limiting groove under the limiting action of the baffle 9. In this embodiment, the resistor 19 includes a resistor 191, with wires (plugs) connected to both ends. The sliding block 192 is T-shaped and has two components. The wires at both ends of the resistor 191 pass through one of the sliding blocks 192 and are connected to an elastic conductive element 193. The elastic conductive element 193 can be a conductive spring wire. The sliding blocks 192 at both ends of each resistor 191 are referred to as block one and block two, respectively. All blocks one are connected by screws. The connector is fixed to slide bar 10 by bolts or other means, and all locking blocks 2 are fixed to slide bar 2 11. To ensure the stability of the plug position, the sliding locking block 192 should be limited in the width direction of the receiving groove, i.e., the thickness direction, so as to ensure that it can slide stably along the length direction of the receiving groove. Through reasonable gap design, it can stabilize the plug position under its own weight and friction after the locking block 14 or locking block 2 15 is turned. This part can also consider increasing the friction of slide bar 10 in sliding groove 91 and increasing the friction of slide bar 2 in sliding groove 92. In addition, the material of connecting rod 6 and its structure should be selected as insulating material.

[0025] The baffle 9 is engraved with a line 18 to indicate the position. The first toggle block 14 and the second toggle block 15 are provided with protrusions 16 to align with the line 18. The line 18 is engraved according to the usage requirements. In addition, a handle 20 is provided on the connecting rod 6 to facilitate pulling out the telescopic plate 7 and engaging the plug.

[0026] Working principle and process: When discharging capacitor 2, disconnect circuit breaker 4 and pull out telescopic plate 7 until limit protrusion 71 abuts against limit member 52. At this time, rotate rotating plate 8 so that connecting rod 6 drives plug to abut and discharge. If facing capacitor 2 with multiple terminals, move toggle block 14 and toggle block 25 to make the protrusion 16 on it align with the corresponding marking line 18 to achieve discharge between different terminals.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A capacitor (2) compensation cabinet for centralized discharge of capacitors, comprising a cabinet (1), wherein a plurality of circuit breakers (4), connectors (3) and capacitors (2) are respectively arranged along a straight line inside the cabinet (1), wherein each capacitor (2) and each circuit breaker (4) are respectively connected downstream and upstream of the connector (3), characterized in that: The cabinet (1) is equipped with a discharge assembly, which includes a mounting frame and a connecting rod (6). The connecting rod (6) is provided with resistors (19) corresponding to the number of capacitors (2). The resistors (19) are connected to plugs at both ends. The connecting rod (6) is connected to the mounting frame and can control the plugs at both ends of each electronic component to move away from or abut against the contacts of the capacitors (2) and connectors (3).

2. The capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 1, characterized in that: The mounting bracket includes a storage groove (5), a telescopic plate (7), and a rotating plate (8). The telescopic plate (7) slides within the storage groove (5), and the rotating plate (8) is rotatably connected to one end of the telescopic plate (7) that extends out of the storage groove (5). The connecting rod (6) is connected to the rotating plate (8).

3. The capacitor (2) compensation cabinet for realizing centralized capacitor discharge according to claim 2, characterized in that: The capacitor (2) has at least two terminals. One end of each resistor (19) is fixed to a slide bar (10), and the other end is fixed to a slide bar (11). The slide bar (10) and the slide bar (11) are slidably connected to the connecting rod (6).

4. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 3, characterized in that: The connecting rod (6) has a receiving groove. The sliding rod one (10) and the sliding rod two (11) are both set in the receiving groove and slide in the receiving groove. The sliding rod one (10) is provided with a first-hand block (14), and the sliding rod two (11) is provided with a second-hand block (15).

5. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 4, characterized in that: The connecting rod (6) has an extension groove (61) that extends through to the receiving groove. The two plugs on the resistor (19) extend from the extension groove (61) and can slide along the extension groove (61) in the length direction of the connecting rod (6).

6. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 5, characterized in that: A baffle (9) is detachably connected to the connecting rod (6). The baffle (9) has a sliding groove 1 (91) and a sliding groove 2 (92) along the length of the connecting rod (6). The sliding rod 1 (10) overlaps on the sliding groove 1 (91), and the sliding rod 2 (11) overlaps on the sliding groove 2 (92).

7. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 6, characterized in that: The plugs at both ends of the resistor (19) are respectively fixed on a sliding block (192). The sliding block (192) slides in the receiving groove and cannot be disengaged from the limiting groove under the limiting action of the baffle (9).

8. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 7, characterized in that: The baffle (9) is engraved with a etched line (18) for indicating position, and the first toggle block (14) and the second toggle block (15) are provided with protrusions (16) that align with the etched line (18).

9. A capacitor (2) compensation cabinet for centralized capacitor discharge according to claim 8, characterized in that: The storage chute (5) is inclined to the horizontal plane to prevent the telescopic plate (7) from slipping off; The storage groove (5) is provided with a limiting member (52), and the telescopic plate (7) is provided with a limiting protrusion (71) that works in conjunction with the limiting member (52). When the telescopic plate (7) extends out of the storage groove (5) and reaches the position where the end of the plug on the connecting rod (6) can be connected to the contacts of the capacitor (2) and the connector (3), the limiting protrusion (71) abuts against the limiting member (52) to achieve the limiting function.

10. A capacitor (2) compensation cabinet for realizing concentrated capacitor discharge according to claim 6, characterized in that: The end of the plug, which is used to abut against the contacts of the capacitor (2) and the connector (3), is fixed with an elastic conductive element (193).

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