Surge arrester grading capacitor device for power station

Abstract

The application relates to the technical field of a capacitor device, and discloses a lightning arrester voltage-sharing capacitor device for a power station, which comprises a main body, a bottom plate fixedly installed at the lower side of the main body, four installation holes formed in the bottom plate, an installation plate fixedly installed at the upper side of the main body, a plurality of connecting pieces fixedly connected to the upper side of the installation plate, a fixed frame fixedly installed at the upper side of the installation plate, and inclined surfaces formed on the four side walls of the fixed frame. Each connecting piece is arranged in the fixed frame, a wire is led out through a square groove, and then a movable box is fixed through buckles. When it rains, rainwater falls on the movable box and slides along the side wall of the movable box. When rainwater splashes into the movable box through the square groove, the rainwater is intercepted by the fixed frame and then flows downward along the inclined surfaces of the fixed frame, so that the service life of the device can be prolonged without affecting the connection of the wire by the staff and without causing corrosion of the connecting position of the connecting piece and the wire.

Description

Technical Field

[0001] This invention relates to the technical field of capacitor devices, specifically to voltage equalization capacitor devices for power plant surge arresters. Background Technology

[0002] A surge arrester is an electrical device used to protect electrical equipment from high transient overvoltage hazards and to limit the follow current time and often the follow current value. Its main material is zinc oxide. Surge arresters are usually connected between the power grid conductor and the ground wire, and sometimes they are also connected next to the electrical winding or between the conductors.

[0003] The leads of the capacitor plates are connected in series and parallel to the lead-out connecting piece at the lower end of the lead-out porcelain bushing. The metal casing of the capacitor is filled with insulating dielectric oil.

[0004] When using surge arrester equalizing capacitor devices, in some cases they need to be installed outdoors, which can lead to corrosion at the connection between the surge arrester equalizing capacitor device and the conductor due to rainwater, thus affecting the service life of the device. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a surge arrester equalizing capacitor device for power plants. This device offers advantages such as not hindering workers from connecting wires while preventing external rainwater from contacting the connectors and causing corrosion at the wire connection points, thus affecting the device's lifespan. It solves the problem that in some cases, surge arrester equalizing capacitor devices need to be installed outdoors, which can lead to rainwater corrosion at the connection points with the wires, thus impacting the device's lifespan.

[0007] (II) Technical Solution

[0008] To achieve the goal of not hindering workers from connecting wires while preventing external rainwater from contacting the connectors and wire connections, thus avoiding corrosion and affecting the lifespan of the device, the present invention provides the following technical solution: a power station surge arrester equalizing capacitor device, comprising a main body, a base plate fixedly installed on the lower side of the main body, four mounting holes on the base plate, a mounting plate fixedly installed on the upper side of the main body, several connectors fixedly connected to the upper side of the mounting plate, a fixed frame fixedly installed on the upper side of the mounting plate, the four side walls of the fixed frame being inclined, each connector being set inside the fixed frame, a movable box movably connected to the upper side of the mounting plate via a hinge, a square groove being opened on the left wall of the movable box, and the fixed frame being set inside the movable box.

[0009] Preferably, the four side walls of the active box are provided with small grooves, and a fixing strip is fixedly installed on the inner wall of the square groove, and a rubber strip is fixedly installed on the lower side of the fixing strip.

[0010] Preferably, the rubber strip has several oblique grooves, and two fixing plates are fixedly installed on the upper side of the main body. Both fixing plates are triangular plates.

[0011] Preferably, bolts are movably connected in each of the four mounting holes, and four support plates are provided on the outer side wall of the main body. The lower side plate of each support plate is attached to the upper side of the large head of each bolt. Two rotating rods movably pass through each of the four support plates, and eight threaded grooves are opened on the upper side of the bottom plate. Each rotating rod is threadedly connected to the eight threaded grooves respectively.

[0012] Preferably, each of the four support plates has a through groove, and each bolt has a retaining groove on its large head.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a voltage equalization capacitor device for surge arresters in power plants, which has the following advantages:

[0015] 1. The surge arrester equalizing capacitor device in this power station uses a rotating movable box that can be moved to the right to connect the wires to the main body and the connectors. Then, rotating the movable box to the left allows it to be secured to the connectors and wires. The wires are then routed through the square groove, and the movable box is fixed in place by clips. When it rains, rainwater falls onto the movable box and flows away along its side wall. When rainwater splashes into the movable box through the square groove, it is intercepted by the fixing frame. The intercepted rainwater then flows downward through the inclined surface of the fixing frame. This design does not obstruct the connection of wires by workers and prevents external rainwater from contacting the connectors and wires, causing corrosion and affecting the service life of the device.

[0016] 2. The power station uses a surge arrester equalizing capacitor device. Rainwater intercepted by the fixed frame can be discharged through the small groove to prevent accumulation. By rotating the movable box to the left and making it fit onto the connector and the conductor, the fixed strip can be rotated and moved. This will cause the rubber strip to rotate and move, so that the inclined groove can fit onto the corresponding conductor. After fixing the movable box, the rubber strip can fit against the inclined surface of the support frame, thus preventing rainwater from passing through the square groove and over the fixed frame due to strong external winds and coming into contact with the connector and conductor connection.

[0017] 3. The surge arrester equalizing capacitor device used in this power station, after the bolts of the mounting and fixing device are movably connected to the four mounting holes, and the four support plates are set in the appropriate positions, the eight rotating rods can be threaded to the eight threaded grooves respectively. In this way, the four support plates can block the four bolts from moving upward, thus preventing the four bolts from falling off. This avoids the loss of bolts during the installation and disassembly of the device, which would affect the user's use. Through the through groove and the slot, the user can insert tools from top to bottom to rotate and move the bolts, thus facilitating the user to fix and install various bolts. Attached Figure Description

[0018] Figure 1 This is a frontal perspective view of the present invention;

[0019] Figure 2 For the present invention Figure 1 A cross-sectional three-dimensional structural diagram of the active box.

[0020] In the diagram: 1. Main body; 2. Base plate; 3. Rotating rod; 4. Threaded groove; 5. Bolt; 6. Mounting hole; 7. Slot; 8. Through groove; 9. Fixing plate; 10. Mounting plate; 11. Fixing frame; 12. Small groove; 13. Movable box; 14. Square groove; 15. Connector; 16. Inclined groove; 17. Rubber strip; 18. Fixing strip; 19. Support plate. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings, wherein the same parts are indicated by the same reference numerals. It should be noted that the terms “front”, “rear”, “left”, “right”, “upper” and “lower”, “bottom surface” and “top surface” used in the following description refer to the directions in the drawings, and the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific part, respectively.

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1

[0024] Please see Figures 1-2This invention provides a technical solution: a voltage equalization capacitor device for power plant surge arresters, comprising a main body 1, which is the body of the voltage equalization capacitor device. A base plate 2 is fixedly installed on the lower side of the main body 1, and four mounting holes 6 are provided on the base plate 2. A mounting plate 10 is fixedly installed on the upper side of the main body 1, and several connecting pieces 15 are fixedly connected to the upper side of the mounting plate 10. A fixing frame 11 is fixedly installed on the upper side of the mounting plate 10, and the four side walls of the fixing frame 11 are all inclined. Each connecting piece 15 is set in the fixing frame 11. A movable box 13 is movably connected to the upper side of the mounting plate 10 via a hinge. A square groove 14 is provided on the left wall of the movable box 13. The fixing frame 11 is set in the movable box 13. By rotating and moving the movable box 13 to the right, the device can be used to load the capacitor. The wires to be connected to the main body 1 are connected to the connector 15, and then the movable box 13 is rotated to the left to make the movable box 13 fit onto the connector 15 and the wires. The wires are then routed out through the square groove 14, and the movable box 13 is fixed by the buckle. When it rains, rainwater falls onto the movable box 13 and flows away along the side wall of the movable box 13. When rainwater splashes into the movable box 13 through the square groove 14, it is intercepted by the fixing frame 11. The intercepted rainwater then flows downward through the slope of the fixing frame 11. This allows the operator to connect the wires without obstructing the connection and prevents rainwater from contacting the connector 15 and the wire connection, which could cause corrosion and affect the service life of the device.

[0025] In use, the movable box 13 is rotated to the right to move and flip it, allowing the wires that need to be connected to the main body 1 to be connected to the connector 15. Then, the movable box 13 is rotated to the left to lock onto the connector 15 and the wires. The wires are then routed out through the square groove 14, and the movable box 13 is secured by the clips. When it rains, rainwater falls onto the movable box 13 and flows away along its side wall. When rainwater splashes into the movable box 13 through the square groove 14, it is intercepted by the fixing frame 11. The intercepted rainwater then flows downward through the slope of the fixing frame 11, thus preventing the operator from connecting the wires while avoiding external rainwater contacting the connector 15 and the wire connection point, which could cause corrosion and affect the lifespan of the device.

[0026] Example 2

[0027] Please refer to Example 1. Figures 1-2The movable box 13 has small grooves 12 on all four side walls. A fixing strip 18 is fixedly installed on the inner wall of the square groove 14. A rubber strip 17 is fixedly installed on the lower side of the fixing strip 18. Several inclined grooves 16 are formed on the rubber strip 17. Two fixing plates 9, both triangular plates, are fixedly installed on the upper side of the main body 1. Rainwater intercepted by the fixing frame 11 can be discharged through the small grooves 12 to prevent accumulation. When the movable box 13 is rotated to the left and fastened to the connector 15 and the wire, the fixing strip 18 can rotate and move, thus rotating the rubber strip 17. This allows the inclined grooves 16 to fit onto the corresponding wires. After fixing the movable box 13, the rubber strip 17 can fit against the inclined surface of the support frame 11, preventing rainwater from passing through the square groove 14 and over the fixing frame 11 due to strong winds, thus avoiding contact between the connector 15 and the wire connection. Bolts 5 are movably connected in each of the four mounting holes 6. Four support plates 19 are provided on the outer wall of the main body 1. The lower square plate of each support plate 19 is attached to the upper side of the large head of each bolt 5. Two rotating rods 3 are movably passed through each of the four support plates 19. Eight threaded grooves 4 are opened on the upper side of the bottom plate 2. Each rotating rod 3 is threadedly connected to the eight threaded grooves 4. Through grooves 8 are opened on each of the four support plates 19. A retaining groove 7 is opened on the large head of each bolt 5. After the bolts 5 of the mounting and fixing device are movably connected to the four mounting holes 6, the four support plates 19 can be set in a suitable position. Then, the eight rotating rods 3 can be threadedly connected to the eight threaded grooves 4 respectively. In this way, the four support plates 19 can block the four bolts 5 from moving upward, thus preventing the four bolts 5 from falling off. This avoids the loss of bolts 5 during the installation and disassembly of the device, which will affect the user's use. Through the through grooves 8 and retaining grooves 7, the user can insert a tool from top to bottom to rotate and move the bolts 5, which can facilitate the user to fix and install the bolts 5 in various ways.

[0028] In use, the first step is to drain the rainwater intercepted by the fixed frame 11 through the small groove 12 to prevent accumulation. By rotating the movable box 13 to the left, when the movable box 13 is fastened to the connector 15 and the wire, the fixed strip 18 can be rotated and moved, which in turn can drive the rubber strip 17 to rotate and move, so that the inclined groove 16 can be fitted onto the corresponding wire. After fixing the movable box 13, the rubber strip 17 can fit against the inclined surface of the support frame 11, thereby preventing rainwater from passing through the square groove 14 and over the fixed frame 11 due to strong winds and thus contacting the connection between the connector 15 and the wire.

[0029] Step 2: After the bolts 5 of the mounting device are movably connected to the four mounting holes 6, and the four support plates 19 are set in the appropriate positions, the eight rotating rods 3 can be threaded to the eight threaded grooves 4 respectively. In this way, the four support plates 19 can block the four bolts 5 from moving upward, thus preventing the four bolts 5 from falling off. This avoids the loss of bolts 5 during the installation and disassembly of the device, which would affect the user's use. Through the through groove 8 and the slot 7, the user can insert a tool from top to bottom to rotate and move the bolts 5, thus facilitating the user to fix the bolts 5 in various ways.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surge arrester equalizing capacitor device for power plants, comprising a main body (1), a base plate (2) fixedly installed on the lower side of the main body (1), and four mounting holes (6) provided on the base plate (2), characterized in that: A mounting plate (10) is fixedly installed on the upper side of the main body (1). Several connectors (15) are fixedly connected to the upper side of the mounting plate (10). A fixed frame (11) is fixedly installed on the upper side of the mounting plate (10). The four side walls of the fixed frame (11) are all inclined. Each connector (15) is set inside the fixed frame (11). A movable box (13) is movably connected to the upper side of the mounting plate (10) via a hinge. A square groove (14) is opened on the left wall of the movable box (13). The fixed frame (11) is set inside the movable box (13). Small grooves (12) are opened on the four side walls of the movable box (13). A fixing strip (18) is fixedly installed on the inner wall of the square groove (14). A rubber strip (17) is fixedly installed on the lower side of the fixing strip (18). The rubber strip (17) has several inclined grooves (16). Two fixing plates (9) are fixedly installed on the upper side of the main body (1). Both fixing plates (9) are triangular plates. Bolts (5) are movably connected in the four mounting holes (6). Four support plates (19) are provided on the outer wall of the main body (1). The square plate on the lower side of each support plate (19) is attached to the upper side of the head of each bolt (5). Two rotating rods (3) are movably passed through the four support plates (19). Eight threaded grooves (4) are provided on the upper side of the bottom plate (2). Each rotating rod (3) is threadedly connected to the eight threaded grooves (4). Through grooves (8) are provided on the four support plates (19). A slot (7) is provided on the head of each bolt (5).

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