Transformer detection auxiliary device

Abstract

The utility model relates to the field of voltage testing, and particularly discloses a transformer detection auxiliary device, which comprises a fixed electrode, symmetrical mounting grooves and a first fastener, a plurality of symmetrical mounting grooves are symmetrically formed in the fixed electrode; first fasteners are inserted into the symmetrical mounting grooves; the first fastener is sleeved with a first terminal; the first terminal is fixedly connected with a test cable; the tail end of the test cable is sleeved with a second terminal; the fixed electrode and the first terminal can be fixed on the terminal of the transformer through the plurality of first fasteners, and then the second terminal is moved to be mounted on the terminals at different distances by using the deformation of the test cable, so that the transformer connection test device is adaptive to the transformers at different distances, and the connection test of the terminals of different types of transformers is facilitated; the problem that the existing auxiliary electrode hard connection cannot change the length to adapt to terminals with different lengths is solved.

Description

Technical Field

[0001] This utility model relates to the field of voltage testing, specifically a transformer testing auxiliary device. Background Technology

[0002] Withstand voltage testing is one of the main methods for verifying the ability of electrical appliances, equipment, devices, circuits, and electrical safety tools to withstand overvoltage. Usually, when transformers are subjected to withstand voltage testing, electrodes need to be installed for testing. However, existing electrodes are made of wires and cannot be adapted to different types of transformers for installation and testing.

[0003] Chinese utility model patent with publication number CN208350935U disclosed on January 8, 2019, a withstand voltage test electrode for an insulating tool, including a high-voltage insulating bracket (1), a grounding or leakage current test insulating bracket (2), and an insulating support bracket (3); the insulating support bracket (3), the high-voltage insulating bracket (1), and the grounding or leakage current test insulating bracket (2) are arranged side by side from front to back to form a main bracket; the main bracket is used to support the insulating tool (4); the high-voltage insulating bracket (1) is used to withstand the high voltage output from the outside; the grounding or leakage current test insulating bracket (2) is provided with several grounding or leakage current test electrodes (23).

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing test electrodes are all planar, so they cannot be adapted to connection terminals of different heights, and therefore cannot be adapted to different types of transformers for testing. At the same time, rigid electrodes cannot be adapted to transformer terminals of different distances, and can only be adapted to a single type of transformer. Utility Model Content

[0005] The purpose of this invention is to solve the technical problems that existing test electrodes are all planar, thus unable to adapt to connection terminals of different heights, and therefore unable to be used to test different types of transformers. At the same time, rigid electrodes cannot be used to adapt to transformer terminals of different distances, and can only be used to test a single type of transformer. This invention provides a transformer testing auxiliary device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution;

[0007] The present invention discloses a transformer testing auxiliary device, comprising a fixed electrode, symmetrical mounting slots, and a first fastener; the fixed electrode is symmetrically provided with multiple symmetrical mounting slots; the first fastener is inserted into the symmetrical mounting slot; a first terminal is sleeved on the first fastener; a test cable is fixedly connected to the first terminal; and a second terminal is sleeved at the end of the test cable.

[0008] Furthermore, a second fastener is inserted into the second terminal; a movable electrode is sleeved on the second fastener; and a second mounting groove is provided on the movable electrode corresponding to the second fastener.

[0009] Furthermore, the fixed electrode and the movable electrode are the same size and are cuboids with equal length and width.

[0010] Furthermore, chamfers are provided at the right angles of the fixed electrode and the movable electrode.

[0011] Furthermore, the symmetrical mounting slots are four in number and are circumferentially symmetrical.

[0012] The transformer testing auxiliary device provided by this utility model has the following beneficial effects:

[0013] 1. This utility model can fix the fixed electrode and the first terminal to the transformer terminal by using multiple first fasteners, and then move the second terminal to install it to the terminal at different distances by utilizing the deformation of the test cable, thereby adapting to transformers of different distances and sizes, thus facilitating the terminal connection test of different types of transformers, and solving the problem that the existing auxiliary electrode hard connection cannot change the length to adapt to terminals of different lengths.

[0014] 2. This utility model can be stably connected to the transformer terminals by using a movable electrode in conjunction with a second fastener. At the same time, by utilizing the length and flexibility of the test cable, it can be installed on terminals at different distances, thus adapting to the insulation withstand voltage test of different types of transformers. This solves the problem that existing auxiliary electrode rigid connections cannot change length to adapt to terminals of different lengths. Attached Figure Description

[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings;

[0016] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0018] Figure 3 This is a top view of the structure of this utility model.

[0019] The following are the labels in the diagram: 1. Fixed electrode; 2. Symmetrical mounting slot; 3. First fastener; 4. First terminal; 5. Test cable; 6. Second terminal; 7. Second fastener; 8. Second mounting slot; 9. Movable electrode. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] It should be noted that all directional indications (such as up-down-left-right-forward-backward...) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0023] Please see Figure 1-3 As shown, a transformer testing auxiliary device includes a fixed electrode 1, symmetrical mounting slots 2, and a first fastener 3. The fixed electrode 1 has multiple symmetrical mounting slots 2. A first fastener 3 is inserted into each symmetrical mounting slot 2. A first terminal 4 is sleeved on the first fastener 3. A test cable 5 is fixedly connected to the first terminal 4. A second terminal 6 is sleeved at the end of the test cable 5. During operation, the fixed electrode 1 and the first terminal 4 are fixed to the terminals of the transformer using the multiple first fasteners 3. Then, the second terminal 6 is moved to install onto terminals at different distances using the deformation of the test cable 5, thus adapting to transformers of different sizes and distances. This facilitates terminal connection testing of different types of transformers and solves the problem that existing auxiliary electrode hard connections cannot change length to adapt to terminals of different lengths.

[0024] A second fastener 7 is inserted into the second terminal 6; a movable electrode 9 is sleeved on the second fastener 7; the movable electrode 9 has a second mounting groove 8 corresponding to the second fastener 7; during operation, the movable electrode 9 can be stably connected to the transformer terminal by cooperating with the second fastener 7. At the same time, by utilizing the length and flexibility of the test cable 5, it can be installed on terminals at different distances, thus adapting to the insulation withstand voltage test of different types of transformers, solving the problem that the existing auxiliary electrode hard connection cannot change the length to adapt to terminals of different lengths.

[0025] The fixed electrode 1 and the movable electrode 9 are the same size and are cuboids with equal length and width. During operation, the fixed electrode 1 and the movable electrode 9 are cuboids with equal length and width, which allows them to be used interchangeably without distinction, making them more convenient and faster in actual use.

[0026] The fixed electrode 1 and the movable electrode 9 are chamfered at right angles; during operation, the chamfers at right angles make it less likely for the fixed electrode 1 and the movable electrode 9 to scratch people and objects, making installation and disassembly safer.

[0027] The symmetrical mounting slots 2 are four in number and are circumferentially symmetrical. During operation, the four circumferentially symmetrical mounting slots 2 allow two first terminals 4 to be symmetrically mounted through four first fasteners 3, ensuring a stable and safe connection, guaranteeing sufficient contact area, and reducing conductive damping.

[0028] Using the above solution, in use, the fixed electrode 1 and the first terminal 4 can be fixed to the transformer terminals using multiple first fasteners 3. Then, the second terminal 6 can be moved and installed to terminals at different distances using the deformation of the test cable 5, thus adapting to transformers of different sizes and sizing. This facilitates terminal connection testing for different types of transformers and solves the problem that existing auxiliary electrode rigid connections cannot change length to adapt to terminals of different lengths. The movable electrode 9, in conjunction with the second fastener 7, can be stably connected to the transformer terminals. Simultaneously, the length and flexible deformation of the test cable 5 allow it to be installed on terminals at different distances, thus adapting to different types of transformers. The insulation shawl withstand voltage test of the device solves the problem that the existing auxiliary electrode hard connection cannot change the length to adapt to terminals of different lengths; by using a cuboid of the same size and equal length and width as the fixed electrode 1 and the movable electrode 9, they can be interchanged and used without distinction, which is more convenient and quick in actual use; by providing chamfers at the right angles of the fixed electrode 1 and the movable electrode 9, the fixed electrode 1 and the movable electrode 9 are less likely to scratch people and objects, making installation and disassembly safer; by using four circumferentially symmetrical mounting slots 2, two first terminals 4 can be symmetrically installed through four first fasteners 3, which makes the connection stable and safe, ensures sufficient contact area, and reduces conduction resistance damping.

[0029] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A transformer testing auxiliary device, characterized in that; It includes a fixed electrode (1), a symmetrical mounting groove (2) and a first fastener (3); the fixed electrode (1) is symmetrically provided with a plurality of symmetrical mounting grooves (2); the first fastener (3) is inserted into the symmetrical mounting groove (2); the first fastener (3) is sleeved on the first fastener (3); the first terminal (4) is fixedly connected to the first terminal (4); the end of the test cable (5) is sleeved with a second terminal (6).

2. The transformer testing auxiliary device according to claim 1, characterized in that: A second fastener (7) is inserted into the second terminal (6); a movable electrode (9) is sleeved on the second fastener (7); the movable electrode (9) has a second mounting groove (8) corresponding to the second fastener (7).

3. The transformer testing auxiliary device according to claim 2, characterized in that: The fixed electrode (1) and the movable electrode (9) are the same size and are cuboids with equal length and width.

4. The transformer testing auxiliary device according to claim 3, characterized in that: The fixed electrode (1) and the movable electrode (9) have chamfers at the right angles.

5. The transformer testing auxiliary device according to claim 4, characterized in that: The symmetrical mounting slots (2) are four in number and are circumferentially symmetrical.

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