Gas-insulated switchgear three-position switch fracture visualization device

Abstract

The utility model discloses a gas-insulated switchgear three-position switch fracture visualization device, which comprises a reflector, an observation window, a three-position isolation knife and a camera, the reflector is installed on the inner side wall of a gas-insulated switchgear, the three-position isolation knife is arranged at the incident angle position of the reflector in the gas-insulated switchgear, and the camera is installed on the three-position isolation knife. The observation window is arranged on the side wall of the inflatable cabinet at the emergent angle position of the reflecting mirror, the camera is installed on the outer side of the observation window, the camera is provided with a support, the support comprises an L-shaped base and a camera supporting seat, the L-shaped base is provided with a kidney-shaped hole, a screw is arranged in the kidney-shaped hole, and the camera is rotatably installed on the camera supporting seat. The utility model has the beneficial effects that the three-station isolation knife in the cabinet can be imaged and reflected through the observation window, so that a maintainer can comprehensively observe the three stations of the three-station isolation knife through the observation window, misoperation is reduced, the safety of the gas-insulated switchgear is improved, the gas-insulated switchgear is convenient to overhaul, and the overhaul efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medium and low voltage gas-insulated switchgear, and particularly relates to a visual device for the disconnection port of a three-position switch of a gas-insulated switchgear. Background Technique

[0002] The medium and low voltage gas-insulated switchgear is an indoor AC high-voltage gas-insulated metal-enclosed switchgear. In the medium and low voltage gas-insulated switchgear, the three-position disconnector operates the isolation mechanism externally through a handle to drive the three-position isolation knife inside the gas tank for isolation switching and grounding. Due to the need to consider issues such as space occupation, gas tightness, and insulation during the installation of the medium and low voltage gas-insulated switchgear, the structure is relatively compact and is widely used in the distribution link of the power system, such as urban power grids, rural power grids, industrial power grids, etc. Specific application scenarios include substations, switching stations, box-type substations, residential communities, industrial and mining enterprises, large shopping malls, airports, subways, railways and other places with high power consumption requirements.

[0003] In the existing medium and low voltage gas-insulated switchgear, the actual situation inside the gas tank cannot be observed from the outside of the cabinet. Generally, it is judged whether the three-position disconnector is operated in place based on external markings. However, due to some special reasons, when the external markings indicate that the isolation mechanism has reached the correct position, the isolation knife inside the gas tank may not reach the correct position, and people will make misjudgments at this time, resulting in very serious consequences such as circuit tripping and short circuits. In addition, although some existing technologies are equipped with observation windows, due to the volume limitation of the gas-insulated switchgear, the observation window can only observe the isolation switching and cannot observe the grounding switching, and it cannot ensure that it can be observed at any time, and the observable area is relatively limited. Content of the Utility Model

[0004] The purpose of the utility model is to provide a visual device for the disconnection port of a three-position switch of a gas-insulated switchgear to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A visual device for the disconnection port of a three-position switch of a gas-insulated switchgear, including a reflecting mirror, an observation window, a three-position isolation knife, and a camera. The reflecting mirror is installed on the inner side wall of the gas-insulated switchgear. The three-position isolation knife is arranged at the incident angle position of the reflecting mirror inside the gas-insulated switchgear. The observation window is arranged on the side wall of the gas-insulated switchgear at the exit angle position of the reflecting mirror. The camera is installed outside the observation window. The camera has a bracket, and the bracket includes an L-shaped base and a camera support seat. The L-shaped base has a waist-shaped hole, and a screw is arranged in the waist-shaped hole. The camera is rotatably installed on the camera support seat.

[0006] Preferably, the reflecting mirror is an 8K mirror surface without modifying the material, and the thickness is 1 mm.

[0007] Preferably, the observation window includes a flange and glass, the flange being mounted on the gas chamber and the glass being mounted inside the flange.

[0008] Preferably, the camera has a built-in wireless communication module.

[0009] Preferably, the inflatable cabinet is equipped with a light source, which is located near the observation window.

[0010] Preferably, the three-position isolation knife is located below the observation window, and its grounding position is close to the inner wall of the gas filling cabinet.

[0011] Preferably, the light source is a light-emitting diode (LED).

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a reflector inside the gas-insulating cabinet wall, this utility model can image the three-position isolation knife inside the cabinet and reflect it through the observation window, allowing maintenance personnel to fully observe the three positions of the three-position isolation knife through the observation window, reducing erroneous operation and improving the safety of the gas-insulating cabinet; the set camera can remotely observe the status of the three-position isolation knife, which is convenient for the maintenance of the gas-insulating cabinet and improves maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0015] Figure 3 This is a schematic diagram showing the positional relationship between the bracket and the observation window of this utility model.

[0016] In the diagram: 1. Reflector; 2. Observation window; 21. Flange; 22. Glass; 3. Three-position isolation knife; 4. Camera; 5. Bracket; 51. L-shaped base; 52. Camera support; 53. Waist hole; 54. Screw; 6. Light source; 100. Gas cabinet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1This utility model provides a technical solution: a visualization device for the break point of a three-position switch in a gas-insulated cabinet, including a reflector 1, an observation window 2, a three-position isolation blade 3, and a camera 4. The reflector 1 is installed on the inner side wall of the gas-insulated cabinet 100. The three-position isolation blade 3 is located at the incident angle of the reflector 1 inside the gas-insulated cabinet 100. The observation window 2 is located on the side wall of the gas-insulated cabinet at the exit angle of the reflector 1. The camera 4 is installed on the outside of the observation window 2. The camera 4 is provided with a bracket 5. The bracket 5 includes an L-shaped base 51 and a camera support 52. The L-shaped base 51 is provided with a waist hole 53, and a screw 54 is provided in the waist hole 53. The camera 4 is rotatably mounted on the camera support 52.

[0019] In one embodiment of this utility model, the reflector 1 is made of 8K mirror stainless steel with a thickness of 1mm.

[0020] In one embodiment of the present invention, the observation window 2 includes a flange 21 and a glass 22, the flange 21 being mounted on the gas chamber and the glass 22 being mounted inside the flange 21.

[0021] In one embodiment of this invention, the camera 4 has a built-in wireless communication module, such as a WiFi module, ZigBee module, or LoRa module, which enables the camera to access a wireless network and achieve remote connection and data transmission with devices such as mobile phones and computers.

[0022] In one embodiment of this invention, a light source 6 is provided inside the gas-filled cabinet 100, and the light source 6 is positioned close to the observation window 2. The light source 6 is a light-emitting diode or LED lamp assembly, or other light-emitting material; in this invention, a light-emitting diode is used.

[0023] In one embodiment of this utility model, the three-position isolation knife 3 is located below the observation window 2, with its grounding position close to the inner wall of the gas filling cabinet. The reflector 1 reflects the three-position isolation knife 3 that needs to be observed onto its surface. The larger the mirror, the larger the reflected area; the smaller the mirror, the smaller the reflected area. The size of the reflector can be adjusted according to the actual situation. This allows observation of the connection position, isolation position, and grounding position of the three-position isolation knife 3, providing a direct view of the situation at each position.

[0024] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visualization device for the break point of a three-position switchgear in a gas-insulated switchgear, characterized in that, The device includes a reflector, an observation window, a three-position isolation blade, and a camera. The reflector is installed on the inner wall of the gas chamber. The three-position isolation blade is located at the incident angle of the reflector inside the gas chamber. The observation window is located on the side wall of the gas chamber at the exit angle of the reflector. The camera is installed on the outer side of the observation window. The camera has a bracket, which includes an L-shaped base and a camera support. The L-shaped base has a waist hole with a screw inside. The camera is rotatably mounted on the camera support.

2. The visual device for the break point of a three-position switchgear according to claim 1, characterized in that: The reflector is made of 8K mirror stainless steel with a thickness of 1mm.

3. The visual device for the break point of a three-position switchgear according to claim 2, characterized in that: The observation window includes a flange and glass, the flange being mounted on the gas chamber and the glass being mounted inside the flange.

4. The visual device for the break point of a three-position switchgear according to claim 3, characterized in that: The camera has a built-in wireless communication module.

5. The visual device for the break point of a three-position switchgear according to claim 4, characterized in that: The inflatable cabinet is equipped with a light source, which is located near the observation window.

6. The visual device for the break point of a three-position switchgear according to claim 5, characterized in that: The three-position isolation knife is located below the observation window, and its grounding position is close to the inner wall of the gas filling cabinet.

7. A visualization device for the break point of a three-position switchgear according to claim 6, characterized in that: The light source is a light-emitting diode (LED).

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