Insulator test tool

Abstract

The utility model belongs to the technical field of insulator test, and discloses an insulator test tool, which comprises an accommodating barrel and a clamping assembly, insulating oil is filled in the accommodating barrel to replace sulfur hexafluoride in an electrical cabinet, and the insulator test tool is more reliable and environment-friendly; the clamping assembly comprises a first voltage-sharing piece and a second voltage-sharing piece which are arranged on the two sides of the insulator, protrusions are annularly arranged on the sides, deviating from each other, of the first voltage-sharing piece and the second voltage-sharing piece, and due to the arrangement of the protrusions, on one hand, when liquid or gas passes through, pressure distribution is more uniform, local high-voltage or low-voltage areas are reduced, and the stability of follow-up testing is ensured; on the other hand, electric field distribution can be smoothed through the arrangement of the protrusions, the corona discharge possibility is reduced, energy loss and electromagnetic interference are reduced, and the electromagnetic compatibility of equipment is improved. The clamping assembly and the insulator are arranged in the accommodating barrel and soaked in the insulating oil to simulate the use condition in the electrical cabinet, and then the performance of the insulator is measured by using a corresponding testing instrument, so that the qualified rate of the insulator loaded in the electrical cabinet is ensured.

Description

Technical Field

[0001] This utility model relates to the field of insulator testing technology, and in particular to an insulator testing tool. Background Technology

[0002] Insulators inside the cabinet are key components for electrical safety. Through the dual functions of insulation and mechanical support, they ensure stable operation of the equipment while meeting safety regulations.

[0003] Electrical cabinets require inspection before leaving the factory. Most cabinets need complete rework and repair due to poor insulator quality, a tedious and complex process that impacts production efficiency. Therefore, it is necessary to conduct tests before installing insulators into the electrical cabinet, simulating the operating environment inside the cabinet to ensure the insulator's pass rate, thereby guaranteeing the overall pass rate of the electrical cabinet. Utility Model Content

[0004] The purpose of this utility model is to provide an insulator testing tool that can test whether insulators are qualified, thereby ensuring the pass rate of electrical cabinets.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An insulator testing apparatus is provided, comprising:

[0007] A container filled with insulating oil;

[0008] The clamping assembly includes a first equalizing member and a second equalizing member disposed on both sides of an insulator. The first equalizing member is provided with a first interface for connecting a cable. The second equalizing member is provided with a second interface for grounding. Both the first equalizing member and the second equalizing member have protrusions on their opposite sides.

[0009] The clamping assembly and the insulator are placed in the receiving tank and immersed in the insulating oil.

[0010] As an optional solution for insulator testing equipment, the connection between the protrusion and the outer peripheral wall of the first equalizing member is arc-shaped;

[0011] And / or, the connection between the protrusion and the outer peripheral wall of the second pressure equalizing member is arc-shaped.

[0012] As an optional solution for insulator testing equipment, the clamping assembly further includes a first connector and a second connector. The first equalizing component has a first connecting hole, and the second equalizing component has a second connecting hole. The first connector passes through the first connecting hole and is screwed onto the insulator; the second connector passes through the second connecting hole and is screwed onto the insulator.

[0013] As an optional solution for insulator testing equipment, multiple first connectors and multiple first connecting holes are provided, with multiple first connectors correspondingly inserted into multiple first connecting holes and screwed onto the insulator.

[0014] As an optional solution for insulator testing equipment, multiple second connectors and multiple second connecting holes are provided, with multiple second connectors correspondingly inserted into multiple second connecting holes and screwed onto the insulator.

[0015] As an optional solution for insulator testing equipment, both the first equalizing component and the second equalizing component are hollow structures.

[0016] As an optional solution for insulator testing equipment, both the first equalizing element and the second equalizing element are made of aluminum.

[0017] As an optional solution for insulator testing equipment, the upper port of the container is rotatably equipped with a dustproof cover.

[0018] The beneficial effects of this utility model are:

[0019] This invention provides an insulator testing apparatus. A first and second equalizing component are respectively disposed on both sides of the insulator to fix it in place. Both the first and second equalizing components have protrusions on their opposite sides. This design allows for a more uniform pressure distribution when liquid or gas passes through, reducing localized high or low pressure areas and ensuring the stability of subsequent tests. Furthermore, the protrusions smooth the electric field distribution, reducing the possibility of corona discharge, minimizing energy loss and electromagnetic interference, and improving the electromagnetic compatibility of the equipment. The clamping assembly and the insulator are placed in a container and immersed in insulating oil to simulate the conditions inside an electrical cabinet. Then, appropriate testing instruments are used to measure the partial discharge capability and power frequency withstand voltage of the insulator, ensuring the pass rate of the insulators installed in the electrical cabinet. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the clamping assembly provided in a specific embodiment of this utility model;

[0021] Figure 2 This is a top view of the first pressure equalizing component provided in a specific embodiment of this utility model.

[0022] In the picture:

[0023] 100. Insulators;

[0024] 1. Clamping assembly; 11. First pressure equalizing component; 12. Second pressure equalizing component; 13. Protrusion; 14. First connecting component; 15. Second connecting component. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 2As shown, this embodiment provides an insulator testing apparatus, including a receiving container (not shown in the figure) and a clamping assembly 1. The receiving container is filled with insulating oil to replace sulfur hexafluoride in the electrical cabinet, which is more reliable and environmentally friendly. The clamping assembly 1 includes a first equalizing component 11 and a second equalizing component 12 disposed on both sides of the insulator 100. The first equalizing component 11 is provided with a first interface for connecting cables, fixing the wires while isolating conductors at different potentials and preventing short circuits or leakage. The second equalizing component 12 is provided with a second interface for grounding to ensure safety and electromagnetic compatibility. The first equalizing component 11 and the second equalizing component 12 are both provided with protrusions 13 on the side opposite to each other. The protrusions 13 can, on the one hand, make the pressure distribution more uniform when liquid or gas passes through, reduce local high-pressure or low-pressure areas, and ensure the stability of subsequent tests; on the other hand, the protrusions 13 can smooth the electric field distribution, reduce the possibility of corona discharge, reduce energy loss and electromagnetic interference, and improve the electromagnetic compatibility of the equipment. The clamping assembly 1 and the insulator 100 are placed in a container and immersed in insulating oil to simulate the usage conditions inside the electrical cabinet. Then, the partial discharge capability and power frequency withstand voltage of the insulator 100 are measured using appropriate testing instruments to ensure the pass rate of the insulator 100 installed in the electrical cabinet.

[0031] Specifically, in this embodiment, a plurality of insulators 100 are provided between the first equalizing member 11 and the second equalizing member 12, which allows for simultaneous testing of the plurality of insulators 100, thereby improving testing efficiency.

[0032] For example, insulating oil is a substance already disclosed in the prior art, and its specific composition is as described in the prior art, and will not be repeated here.

[0033] Furthermore, the connection between the protrusion 13 and the outer peripheral wall of the first equalizing member 11 is arc-shaped; and / or, the connection between the protrusion 13 and the outer peripheral wall of the second connecting member 15 is arc-shaped. This arc-shaped design can, on the one hand, better disperse stress, enhance the mechanical strength of the structure, prevent deformation or damage, and help extend its service life; on the other hand, it can reduce local electric field concentration and avoid corona discharge or local breakdown. Specifically, in this embodiment, the connections between the first equalizing member 11 and the second equalizing member 12 and their corresponding protrusions 13 are both arc-shaped.

[0034] Optionally, the clamping assembly 1 further includes a first connector 14 and a second connector 15. The first equalizing member 11 has a first connecting hole, and the second equalizing member 12 has a second connecting hole. The first connector 14 passes through the first connecting hole and is screwed onto the insulator 100; the second connector 15 passes through the second connecting hole and is screwed onto the insulator 100. This configuration enables a detachable connection between the first equalizing member 11 and the second equalizing member 12 and the insulator 100, simplifying operation and improving testing efficiency. Exemplarily, both the first and second connecting holes are through holes, and both the first connector 14 and the second connector 15 are bolts commonly used in the art.

[0035] Furthermore, multiple first connectors 14 and first connecting holes are provided, with each first connector 14 correspondingly inserted into a corresponding first connecting hole and screwed onto the insulator 100. This improves the stability of the connection between the insulator 100 and the first equalizing member 11, ensuring the accuracy of subsequent test results. For example, in this embodiment, three first connectors 14 and three first connecting holes are provided; in other embodiments, the number of first connectors 14 and first connecting holes can be set as needed, and is not specifically limited here.

[0036] Optionally, multiple second connectors 15 and second connecting holes are provided. Each second connector 15 is inserted into one of the multiple second connecting holes and screwed onto the insulator 100 to improve the stability of the connection between the insulator 100 and the second equalizing member 12, ensuring the accuracy of subsequent test results. Exemplarily, in this embodiment, two second connectors 15 and two second connecting holes are provided; in other embodiments, the number of second connectors 15 and second connecting holes can be set as needed, and is not specifically limited here.

[0037] Optionally, both the first equalizing element 11 and the second equalizing element 12 are hollow structures. The hollow structure guides the uniform diffusion of electric field or pressure through the shape of the outer shell, avoiding local concentration. At the same time, the hollow structure can absorb impact or vibration energy through internal air damping, protecting the core components. Specifically, in this embodiment, both the first equalizing element 11 and the second equalizing element 12 are circular.

[0038] Optionally, both the first equalizing element 11 and the second equalizing element 12 are made of aluminum. Aluminum can effectively equalize the electric field distribution and reduce the risk of partial discharge. The density of aluminum is 2.7 g / cm³. 3 This can significantly reduce the weight of the clamping component 1, reducing transportation and installation costs. At the same time, aluminum has long-term stability, requires little maintenance, and is easy to form and process.

[0039] Optionally, a dust cover is provided at the upper port of the container to prevent dust from falling into the container and contaminating the insulating oil, thus ensuring the accuracy of the test results.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An insulator testing apparatus, characterized in that, include: A container filled with insulating oil; The clamping assembly (1) includes a first equalizing member (11) and a second equalizing member (12) disposed on both sides of the insulator (100). The first equalizing member (11) is provided with a first interface for connecting a cable. The second equalizing member (12) is provided with a second interface for grounding. The first equalizing member (11) and the second equalizing member (12) are both provided with a protrusion (13) on the side opposite to each other. The clamping assembly (1) and the insulator (100) are placed in the container and immersed in the insulating oil.

2. The insulator testing apparatus according to claim 1, characterized in that, The connection between the protrusion (13) and the outer peripheral wall of the first pressure equalizing member (11) is arc-shaped; And / or, the connection between the protrusion (13) and the outer peripheral wall of the second equalizing member (12) is arc-shaped.

3. The insulator testing apparatus according to claim 1, characterized in that, The clamping assembly (1) further includes a first connector (14) and a second connector (15). The first equalizing member (11) has a first connecting hole, and the second equalizing member (12) has a second connecting hole. The first connector (14) passes through the first connecting hole and is screwed onto the insulator (100); the second connector (15) passes through the second connecting hole and is screwed onto the insulator (100).

4. The insulator testing apparatus according to claim 3, characterized in that, Multiple first connectors (14) and multiple first connecting holes are provided. Multiple first connectors (14) are inserted into multiple first connecting holes in a corresponding manner and are screwed onto the insulator (100).

5. The insulator testing apparatus according to claim 3, characterized in that, Multiple second connectors (15) and multiple second connecting holes are provided. Multiple second connectors (15) are inserted into multiple second connecting holes in a corresponding manner and are screwed onto the insulator (100).

6. The insulator testing apparatus according to claim 1, characterized in that, Both the first pressure equalizing component (11) and the second pressure equalizing component (12) are hollow structures.

7. The insulator testing apparatus according to claim 1, characterized in that, Both the first equalizing member (11) and the second equalizing member (12) are made of aluminum.

8. The insulator testing apparatus according to any one of claims 1-7, characterized in that, The upper port of the container is equipped with a dustproof cover.

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