Tank-type switchgear with isolated break visualization

Abstract

This utility model provides a can-type switchgear with a visual isolation break point function, including a can body mounted on the main body of the can-type switchgear, with a three-position switch assembly connected inside the can body; the can-type switchgear also includes an observation window, a camera, and a cover plate; an observation hole is provided on the top of the can body, the observation window is located inside the observation hole, the observation window is fixed to the can body and circumferentially sealed, and several circumferentially spaced LED beads are integrally formed on the outer wall of the observation window; the cover plate is located at the upper end of the observation hole and is fixed to the can body, and a wire hole is provided on the cover plate; the camera is located inside the observation window and is fixed to the cover plate, and the power supply wires of the LED beads and the connection wires of the camera pass through the wire hole and are electrically connected to the monitoring equipment; this allows the staff to clearly know the break point status of the three-position switch assembly located inside the can body, thereby eliminating safety hazards when the staff performs maintenance on the can-type switchgear and downstream electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of tank-type switchgear technology, and more specifically, to a tank-type switchgear with a visual function for the isolation break. Background Technology

[0002] Tank-type switchgear is a commonly used electrical device in current power supply systems. Currently, the three-position switch assembly in the 40.5kV tank-type switchgear adopts a direct-acting structure. The three-position switch assembly is sealed inside the tank of the busbar compartment, and there is no observation window on the side wall of the tank. As a result, on-site personnel cannot clearly observe the break state of the three-position switch assembly, which poses a significant safety hazard when maintaining the tank-type switchgear and downstream electrical equipment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a tank-type switchgear with a visualization function of the isolation break, which enables the staff to clearly know the break status of the three-position switch assembly located inside the tank, thereby eliminating safety hazards when the staff inspects and maintains the tank-type switchgear and downstream electrical equipment.

[0004] This utility model provides a can-type switchgear with a visualization function for isolated breaks, including a can body mounted on the main body of the can-type switchgear, with a three-position switch assembly connected inside the can body; the can-type switchgear also includes an observation window, a camera, and a cover plate; an observation hole is provided on the top of the can body, the observation window is located inside the observation hole, the observation window is fixed to the can body and circumferentially sealed, and a plurality of circumferentially spaced LED beads are integrally formed on the outer wall of the observation window; the cover plate is located at the upper end of the observation hole and is fixed to the can body, and a wire hole is provided on the cover plate; the camera is located inside the observation window and is fixed to the cover plate, and the power supply wires of the LED beads and the connection wires of the camera pass through the wire hole and are electrically connected to the monitoring equipment.

[0005] By adopting the above-described structure, when staff operate the monitoring equipment to request the camera to acquire images inside the tank, the monitoring equipment can control the LED beads to emit light. The light emitted by the LED beads can illuminate the isolation break area and grounding break area of ​​the three-position switch assembly. The camera can acquire image data inside the tank in real time, and the image data can be displayed on the display screen of the monitoring equipment. This allows staff to clearly know the break status of the three-position switch assembly located inside the tank, thereby eliminating safety hazards when staff inspect the tank switch equipment and downstream electrical equipment.

[0006] In one possible implementation, an annular boss is provided on the outer top of the tank body, located on the outer side of the observation hole in the circumferential direction. An annular protrusion extending horizontally outward is provided on the outer peripheral wall of the upper end of the observation window. The annular protrusion is supported on the annular boss and is circumferentially sealed to the annular boss. The outer edge of the cover plate is supported on the annular protrusion. The cover plate and the observation window are fastened to the tank body by a number of bolts distributed circumferentially. The threaded part of each bolt moves through the cover plate and the annular protrusion and is threadedly fastened to the annular boss. With this structure, after the cover plate and the annular protrusion are fixed to the annular boss by a number of bolts, the cover plate and the observation window can be reliably fixed to the tank body.

[0007] In one possible implementation, an annular groove is provided on the annular boss, the annular groove being located inside the circumferential direction of several bolts. A sealing ring is embedded in the annular groove, and the sealing ring is tightly sealed against the inner wall of the annular groove and the lower surface of the annular boss. With this structure, under the action of the sealing ring, since the sealing ring is tightly sealed against the inner wall of the annular groove and the lower surface of the annular boss, a reliable seal can be achieved for the gap between the annular boss and the annular boss, thereby preventing the leakage of insulating gas in the tank through the observation hole.

[0008] In one possible implementation, the lower part of the observation window is formed into a convex spherical structure; by adopting this structure, the observation window can withstand higher air pressure, so as to avoid the observation window from rupturing under the pressure of the insulating gas inside the tank.

[0009] In one possible implementation, the can-type switchgear also includes two "L"-shaped brackets symmetrically arranged on both sides of the camera. The vertical side of each bracket is fixed to the outer wall of the camera, and the horizontal side of each bracket is fixed to the lower end face of the cover plate. With this structure, the camera can be reliably fixed to the lower end face of the cover plate by the two brackets. Attached Figure Description

[0010] Figure 1 A three-dimensional structural diagram of a tank-type switchgear;

[0011] Figure 2 This is a partial cross-sectional structural diagram of a tank-type switchgear.

[0012] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle;

[0013] Figure 4 This is a schematic diagram of the three-dimensional structure of the camera after it is fixed by the bracket and cover plate. Detailed Implementation

[0014] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0015] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0016] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0017] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] See Figure 1-4 As shown in the figure, this application discloses a can-type switchgear with a visualization function for isolation breaks, including a can body 11 disposed on the main body 1 of the can-type switchgear, and a three-position switch assembly 2 connected inside the can body 11; the can-type switchgear also includes an observation window 3, a camera 4, and a cover plate 5; an observation hole 111 is provided on the top of the can body 11, the observation window 3 is disposed inside the observation hole 111, the observation window 3 is fixed to the can body 11 and circumferentially sealed, and a plurality of circumferentially spaced LED beads 31 are integrally formed on the outer wall of the observation window 3; the cover plate 5 is disposed on the upper part of the observation hole 111. The end is fixed to the tank body 11, and the cover plate 5 is provided with a wire hole 51; the camera 4 is set inside the observation window 3 and fixed to the cover plate 5, and the power supply line of the LED lamp bead 31 and the connection line of the camera 4 pass through the wire hole 51 and are electrically connected to the monitoring equipment; the above-mentioned observation window is made of a thick transparent plastic material, and the above-mentioned cover plate is made of an opaque material, such as metal. Since the cover plate is made of an opaque material, it can effectively prevent light from the external environment from entering the observation hole, thereby avoiding the impact on the image of the three-position switch assembly located in the tank body obtained by the camera.

[0019] An annular boss 112 is provided on the outer top of the tank body 11 and on the outer side of the observation hole 111 in the circumferential direction. An annular protrusion 32 extending horizontally outward is provided on the outer peripheral wall of the upper end of the observation window 3. The annular protrusion 32 is supported on the annular boss 112 and is circumferentially sealed to the annular boss 112. The outer edge of the cover plate 5 is supported on the annular protrusion 32. The cover plate 5 and the observation window 3 are fastened to the tank body 11 by a number of bolts distributed circumferentially. The threaded part of each bolt moves through the cover plate 5 and the annular protrusion 32 and is threadedly fastened to the annular boss 112. With this structure, after the cover plate and the annular protrusion are fixed to the annular boss by a number of bolts, the cover plate and the observation window can be reliably fixed to the tank body.

[0020] An annular groove 113 is provided on the annular boss 112. The annular groove 113 is located inside the circumferential direction of several bolts. A sealing ring 6 is embedded in the annular groove 113. The sealing ring 6 is tightly sealed to the inner wall of the annular groove 113 and the lower surface of the annular protrusion 32. With this structure, under the action of the sealing ring, since the sealing ring is tightly sealed to the inner wall of the annular groove and the lower surface of the annular protrusion, a reliable seal can be achieved for the gap between the annular protrusion and the annular boss, thereby preventing the leakage of insulating gas in the tank through the observation hole.

[0021] The lower part of the observation window 3 forms a convex spherical structure; by adopting this structure, the observation window can withstand higher air pressure, so as to avoid the observation window from cracking under the pressure of the insulating gas inside the tank.

[0022] The can-type switchgear also includes two “L”-shaped brackets 7 symmetrically arranged on both sides of the camera 4. The vertical side of each bracket 7 is fixed to the outer wall of the camera 4, and the horizontal side of each bracket 7 is fixed to the lower end face of the cover plate 5. With this structure, the camera can be reliably fixed to the lower end face of the cover plate by the two brackets.

[0023] The aforementioned monitoring equipment can be installed in front of the switchgear or in the monitoring room. When the monitoring equipment is operated to request the camera to acquire images inside the tank, the monitoring equipment can control the LED beads to emit light. The light emitted by the LED beads can illuminate the isolation break area and grounding break area of ​​the three-position switch assembly. The camera can acquire image data inside the tank in real time, and the image data can be displayed on the display screen of the monitoring equipment, so that the staff can clearly know the break status of the three-position switch assembly located inside the tank.

[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tank-type switchgear with a visual isolation break function, comprising a tank (11) disposed on the main body (1) of the tank-type switchgear, wherein a three-position switch assembly (2) is connected inside the tank (11); characterized in that: The tank-type switchgear also includes an observation window (3), a camera (4), and a cover plate (5); an observation hole (111) is provided on the top of the tank (11), the observation window (3) is located inside the observation hole (111), the observation window (3) is fixed to the tank (11) and circumferentially sealed, and a number of circumferentially spaced LED beads (31) are integrally formed on the outer wall of the observation window (3); the cover plate (5) is located at the upper end of the observation hole (111) and fixed to the tank (11), and a wire hole (51) is provided on the cover plate (5); the camera (4) is located inside the observation window (3) and fixed to the cover plate (5), and the power supply line of the LED beads (31) and the connection line of the camera (4) pass through the wire hole (51) and are electrically connected to the monitoring equipment.

2. Tank-type switchgear with isolated break visualization function according to claim 1, characterized in that: An annular boss (112) is provided on the outer top of the tank body (11) and on the outer side of the observation hole (111) in the circumferential direction. An annular protrusion (32) extending outward horizontally is provided on the outer peripheral wall of the upper end of the observation window (3). The annular protrusion (32) is supported on the annular boss (112) and is circumferentially sealed to the annular boss (112). The outer edge of the cover plate (5) is supported on the annular protrusion (32). The cover plate (5) and the observation window (3) are fastened to the tank body (11) by a number of bolts distributed circumferentially. The threaded part of each bolt moves through the cover plate (5) and the annular protrusion (32) and is threadedly fastened to the annular boss (112).

3. Tank-type switchgear with isolated break visualization function according to claim 2, characterized in that: The annular boss (112) is provided with an annular groove (113), which is located inside the circumferential direction of several bolts. A sealing ring (6) is embedded in the annular groove (113), and the sealing ring (6) is tightly sealed to the inner wall of the annular groove (113) and the lower surface of the annular protrusion (32).

4. The tank-type switchgear with isolation break visualization function according to any one of claims 1-3, characterized in that: The lower part of the observation window (3) forms a convex spherical structure.

5. Tank-type switchgear with isolated interruption visualization function according to any of claims 1 to 3, characterized in that: The can-type switchgear also includes two "L"-shaped brackets (7) symmetrically arranged on both sides of the camera (4). The vertical side of each bracket (7) is fixed to the outer wall of the camera (4), and the horizontal side of each bracket (7) is fixed to the lower end face of the cover plate (5).

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