A transformer core clamp grounding current monitoring device

Abstract

This utility model discloses a transformer core clamp grounding current monitoring device, including a main unit, a data cable, a current clamp, a display, buttons, and a rotating structure. By setting up the rotating structure, the rotating plate can be moved upwards by loosening the screw plug, thereby separating the rotating plate from the drive shaft, releasing the limiting effect on the rotating plate, facilitating the replacement of the rotating plate and the protective structure, and preventing damage to the protective frame from bumps or impacts after prolonged use, thus ensuring the protective effect. The magnetic connection between the first and second magnetic strips facilitates the opening and closing of the protective frame. The protective frame protects the display and buttons, preventing damage and effectively preventing dust from entering the display and buttons.

Description

Technical Field

[0001] This utility model relates to the field of current monitoring, and in particular to a grounding current monitoring device for transformer core clamps. Background Technology

[0002] Grounding current online monitoring instruments can quickly detect latent faults in transformers and are one of the main tools to ensure the safe operation and normal maintenance of transformers. They are mainly applicable to the leakage current testing of the core and clamps of electrical equipment such as transformers and reactors in substations and power plants.

[0003] The announcement number CN216526015U discloses "An Online Monitoring Device for Grounding Current of Transformer Core and Clamping Components", which includes a main unit and a display. The display is located at the top of the front end of the main unit, and operation buttons are located at the bottom of the front end of the main unit. The main unit is hinged to the top of one side of the main unit via a frame. A transparent acrylic plate is fixedly connected inside the frame, and a lever is fixedly connected to one side of the frame. In use, the frame is flipped to the front end of the display, and the buckle is engaged inside the bracket to lock the frame. This forms a protective cover at the front end of the display. At the same time, the transparent acrylic plate does not affect the observation of the information on the display, thus protecting the display from damage and extending the service life of the device. This solves the problem of the display being easily damaged and having a short service life.

[0004] Although the above-mentioned online monitoring device for grounding current of transformer core and clamps has certain advantages in terms of display protection, after long-term use, the protective frame may be damaged due to bumps or impacts, making it inconvenient to replace the protective frame and affecting the protection effect on the display. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a transformer core clamp grounding current monitoring device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a transformer core clamp grounding current monitoring device, comprising a main unit, a data cable, a current clamp, a display, buttons, and a rotating structure. The upper end face of the main unit is electrically connected to the current clamp via the data cable. The display and buttons are respectively installed on the upper and lower sides of the front end face of the main unit. A rotating structure is provided on the left side of the main unit. The rotating structure includes a support plate, a groove, a bearing, a transmission shaft, a rotating plate, and a protective structure. A groove is formed on the upper end face of the support plate. A bearing is installed on the inner wall of the groove. The bearing is rotatably connected to the transmission shaft. A rotating plate is fitted on the outer side of the transmission shaft. A protective structure is installed on the front side of the right end face of the rotating plate. The right end face of the support plate is installed and connected to the main unit.

[0007] Optionally, the protective structure includes a protective frame, a rectangular groove, a first magnetic strip, and a second magnetic strip. The rectangular groove is provided on the rear side of the right end face of the protective frame. The first magnetic strip is installed on the right side of the rear end face of the protective frame. The first magnetic strip is magnetically connected to the second magnetic strip, and the second magnetic strip is installed on the right side of the front end face of the host. The left end face of the protective frame is connected to the rotating plate.

[0008] Optionally, the rear end face of the rotating plate is arc-shaped.

[0009] Optionally, the upper side of the drive shaft is connected to a screw plug via a thread.

[0010] Optionally, a push plate is installed at the center of the right end face of the protective frame.

[0011] Optionally, the magnetic poles of the mating surfaces of the first and second magnetic strips are opposite.

[0012] The beneficial effects of this utility model are:

[0013] This utility model is a transformer core clamp grounding current monitoring device. It features a rotating structure; by loosening the screw plug, the rotating plate moves upward, separating it from the drive shaft and removing the limiting effect on the rotating plate. This facilitates replacement of the rotating plate and protective structure, preventing damage to the protective frame from bumps or impacts after prolonged use, thus maintaining the protective effect. The magnetic connection between the first and second magnetic strips facilitates the opening and closing of the protective frame. The protective frame protects the display and buttons, preventing damage and effectively preventing dust accumulation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the rotating structure of this utility model when opened;

[0016] Figure 3 This is a schematic diagram of the rotating structure of this utility model;

[0017] Figure 4 This is a top view of the protective structure of this utility model.

[0018] The components include: host unit-1, data cable-2, current clamp-3, display-4, button-5, rotating structure-6, support plate-61, groove-62, bearing-63, drive shaft-64, rotating plate-65, protective structure-66, screw plug-67, protective frame-661, rectangular groove-662, first magnetic strip-663, second magnetic strip-664, and push plate-665. Detailed Implementation

[0019] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0020] Please see Figure 1-3 This utility model provides a transformer core clamp grounding current monitoring device, including a main unit 1, a data cable 2, a current clamp 3, a display 4, buttons 5, and a rotating structure 6. The upper end face of the main unit 1 is electrically connected to the current clamp via the data cable 2. The display 4 and buttons 5 are respectively installed on the upper and lower sides of the front end face of the main unit 1. The rotating structure 6 is provided on the left side of the main unit 1. The rotating structure 6 includes a support plate 61, a groove 62, a bearing 63, a transmission shaft 64, a rotating plate 65, and a protective structure 66. The upper end face of the support plate 61... A groove 62 is provided, and a bearing 63 is installed on the inner wall of the groove 62. The bearing 63 is rotatably connected to the drive shaft 64. A rotating plate 65 is fitted on the outer side of the drive shaft 64. A protective structure 66 is installed on the front side of the right end of the rotating plate 65. The right end face of the support plate 61 is installed and connected to the main unit 1. The rear end face of the rotating plate 65 is arc-shaped, which is conducive to the rotation of the rotating plate 65. The upper side of the drive shaft 64 is threaded to a screw plug 67. The screw plug 67 is used to fasten the rotating plate 65 to prevent it from sliding up and down.

[0021] Please see Figure 4 This utility model provides a transformer core clamp grounding current monitoring device. The protection structure 66 includes a protection frame 661, a rectangular groove 662, a first magnetic strip 663, and a second magnetic strip 664. The rectangular groove 662 is provided on the rear side of the right end face of the protection frame 661. The first magnetic strip 663 is installed on the right side of the rear end face of the protection frame 661. The first magnetic strip 663 and the second magnetic strip 664 are magnetically connected. The second magnetic strip 664 is installed on the right side of the front end face of the main unit 1. The left end face of the protection frame 661 is connected to the rotating plate 65. A push plate 665 is installed in the middle of the right end face of the protection frame 661 to facilitate pushing the protection frame 661. The magnetic poles of the contact surfaces of the first magnetic strip 663 and the second magnetic strip 664 are opposite, which is beneficial for the second magnetic strip 664 to attract and limit the first magnetic strip 663.

[0022] The working principle is as follows:

[0023] First, place the new device in the desired location;

[0024] Second, by loosening the screw plug 67 and removing it, the limiting position on the rotating plate 65 is released. By moving the rotating plate 65 upward, it can be removed. The rotating plate 65 also moves the protective structure 66, which facilitates the replacement of the rotating plate 65 and the protective structure 66. This avoids damage to the protective frame 661 caused by bumps or impacts after long-term use, thus affecting the protective effect.

[0025] Third, by pushing the push plate 665, the push plate 665 drives the protective frame 661 to move, the protective frame 661 drives the rotating plate 65 to move, the rotating plate 65 drives the transmission shaft 64 to rotate, and the transmission shaft 64 drives the screw plug 67 to rotate, thus opening the protective frame 661, thereby enabling observation of the display 4 and operation of the button 5. When the protective frame 661 is closed, the magnetic connection between the first magnetic strip 663 and the second magnetic strip 664 achieves the effect of protecting the display 4 and the button 5.

[0026] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0027] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transformer core clamp grounding current monitoring device, comprising a host (1), a data line (2), a current clamp (3), a display (4) and a button (5), wherein the upper end face of the host (1) is electrically connected to the current clamp via the data line (2), and the display (4) and the button (5) are respectively installed on the upper and lower sides of the front end face of the host (1). Its features are: It also includes a rotating structure (6), which is provided on the left side of the host (1). The rotating structure (6) includes a support plate (61), a groove (62), a bearing (63), a transmission shaft (64), a rotating plate (65), and a protective structure (66). The upper end face of the support plate (61) is provided with a groove (62), and the inner wall of the groove (62) is equipped with a bearing (63). The bearing (63) is rotatably connected to the transmission shaft (64). The outer side of the transmission shaft (64) is fitted with a rotating plate (65). The front side of the right end face of the rotating plate (65) is equipped with a protective structure (66). The right end face of the support plate (61) is installed and connected to the host (1).

2. The transformer core clamp grounding current monitoring device according to claim 1, characterized in that: The protective structure (66) includes a protective frame (661), a rectangular groove (662), a first magnetic strip (663), and a second magnetic strip (664). The rectangular groove (662) is provided on the rear side of the right end face of the protective frame (661). The first magnetic strip (663) is installed on the right side of the rear end face of the protective frame (661). The first magnetic strip (663) and the second magnetic strip (664) are magnetically connected. The second magnetic strip (664) is installed on the right side of the front end face of the host (1). The left end face of the protective frame (661) is connected to the rotating plate (65).

3. The transformer core clamp grounding current monitoring device according to claim 1, characterized in that: The rear end face of the rotating plate (65) is arc-shaped.

4. The transformer core clamp grounding current monitoring device according to claim 1, characterized in that: The upper side of the drive shaft (64) is threadedly connected to the screw plug (67).

5. The transformer core clamp grounding current monitoring device according to claim 2, characterized in that: A push plate (665) is installed in the middle of the right end face of the protective frame (661).

6. The transformer core clamp grounding current monitoring device according to claim 2, characterized in that: The magnetic poles of the mating surfaces of the first magnetic strip (663) and the second magnetic strip (664) are opposite.

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