Combined power frequency withstand voltage test device

Abstract

According to the combined power frequency withstand voltage test device, a combined grounding electrode and a combined high-voltage electrode are both of a size-adjustable structure, the combined grounding electrode is placed on an insulating panel at the upper end of a movable support, and a grounding wiring terminal on the bottom face of the combined grounding electrode penetrates out of an eccentric hole in the insulating panel to be connected with a grounding wire. A to-be-tested insulation blanket / pad is laid on the combined grounding electrode, the combined high-voltage electrode and the combined grounding electrode are the same in size and are placed on the to-be-tested insulation blanket / pad in an aligned mode, and a high-voltage wiring terminal on the top face of the combined high-voltage electrode is connected with a high-voltage testing line. According to the utility model, the combined grounding electrode and the combined high-voltage electrode which are adjustable in size are adopted, so that the problems that a special test electrode needs to be customized and the universality is poor due to the diversification of the boundary dimensions of a used insulating blanket / pad in line maintenance are solved, the utilization rate of the grounding electrode and the high-voltage electrode is improved, the assembly is flexible, the combination is rapid, and the integrity is strong.

Description

Technical Field

[0001] The utility model belongs to the technical field of insulation blanket / mat withstand voltage test, and in particular relates to a combined power frequency withstand voltage test device. Background Art

[0002] One type of insulation blanket / mat currently in use has a power frequency withstand voltage test electrode made of stainless steel plate, which has a one-to-one correspondence with the test product. If the specifications of the insulation blanket / mat change, it will affect the use of the power frequency withstand voltage test electrode; and another type of insulation blanket / mat currently in use has a power frequency withstand voltage test electrode made of aluminum foil or conductive cloth. The power frequency withstand voltage test electrode needs to be cut on-site according to the size of the test product, which is labor-intensive and time-consuming, and has disadvantages such as low reuse rate and low withstand voltage level. Therefore, in order to solve the disadvantages that the blankets / mats used in line maintenance have various external dimensions and need to be customized for special test electrodes and cannot be used universally, it is necessary to make improvements. Utility Model Content

[0003] The technical problem solved by the utility model is: to provide a combined power frequency withstand voltage test device, which optimizes the structure of the grounding electrode and the high-voltage electrode, adopts a combined grounding electrode and a combined high-voltage electrode with adjustable sizes, solves the problem that special test electrodes must be customized and have poor versatility due to the diverse external sizes of the insulating blankets / mats used in line maintenance, improves the utilization rate of the grounding electrode and the high-voltage electrode, has flexible assembly, quick combination, strong integrity, and high use value.

[0004] The technical solution adopted by the utility model is as follows: a combined power frequency withstand voltage test device, comprising a movable bracket, a combined grounding electrode and a combined high-voltage electrode, the combined grounding electrode and the combined high-voltage electrode are both size-adjustable structures, the combined grounding electrode is placed on an insulating panel at the upper end of the movable bracket, and the grounding terminal on the bottom surface of the combined grounding electrode passes through an eccentric hole on the insulating panel and is connected to a grounding wire, an insulating blanket / mat to be tested is laid on the combined grounding electrode, the combined high-voltage electrode has the same size as the combined grounding electrode and is placed aligned on the insulating blanket / mat to be tested, and the high-voltage terminal on the top surface of the combined high-voltage electrode is connected to a high-voltage test line.

[0005] The combined grounding electrode comprises a main grounding electrode, a short-side grounding electrode and a long-side grounding electrode. Two or more T-shaped grooves are formed on the adjacent two sides of the main grounding electrode. T-shaped protrusions having the same number and corresponding positions as the T-shaped grooves on the corresponding sides of the main grounding electrode are formed on one side of the short-side grounding electrode and the long-side grounding electrode. The size of the combined grounding electrode is adjusted by adapting the T-shaped protrusions on the short-side grounding electrode or the T-shaped protrusions on the short-side grounding electrode and the long-side grounding electrode to the T-shaped grooves on the corresponding sides of the main grounding electrode. The grounding terminal is fixed to the middle of the bottom surface of the main grounding electrode.

[0006] Furthermore, the combined high-voltage electrode includes a main high-voltage electrode, a short-side high-voltage electrode and a long-side high-voltage electrode; one side of the main high-voltage electrode is connected to the short-side high-voltage electrode through more than two groups of connecting components, or both adjacent sides of the main high-voltage electrode are fixedly connected to the short-side high-voltage electrode and the long-side high-voltage electrode respectively through more than two groups of connecting components, thereby realizing the adjustment of the size of the combined high-voltage electrode; a high-voltage terminal is fixed in the middle of the top surface of the main high-voltage electrode, and handles are fixed on the top surface of the main high-voltage electrode on both sides of the high-voltage terminal.

[0007] Furthermore, the connecting assembly includes a concave block and a convex block, a T-slot is formed on one side wall of the concave block, a T-shaped convex block adapted to the T-slot is formed on one side wall of the convex block, more than two groups of through holes are formed at the adjacent two side plate edges of the main high-voltage electrode, and holes corresponding to the positions of the through holes on the corresponding sides of the main high-voltage electrode and the same number are formed on one side plate surface of the short-side high-voltage electrode and the long-side high-voltage electrode, each group of through holes on the main high-voltage electrode corresponds to the position of the threaded blind hole on one end face of the corresponding concave block and is fixedly connected by screws, and after the convex block fixed to the short-side high-voltage electrode or the short-side high-voltage electrode and the long-side high-voltage electrode is adapted to the concave block on the corresponding side of the main high-voltage electrode, the assembly of the short-side high-voltage electrode or the short-side high-voltage electrode and the long-side high-voltage electrode with the main high-voltage electrode is realized.

[0008] Furthermore, the movable bracket includes an insulating panel, a frame bracket fixed to the bottom of the insulating panel, and universal wheels fixed to the four corners of the lower end of the frame bracket, and the insulating panel is made of epoxy resin board.

[0009] The advantages of this utility model compared with the prior art:

[0010] 1. This technical solution optimizes the structure of the grounding electrode and the high-voltage electrode, and adopts a combined grounding electrode and a combined high-voltage electrode with adjustable size, so as to solve the problem that special test electrodes must be customized and have poor versatility due to the diverse dimensions of the insulation blankets / mats used in line maintenance;

[0011] 2. This technical solution uses a T-shaped groove and a matching T-shaped protrusion to realize the assembly of the main grounding electrode, the short-side grounding electrode and the long-side grounding electrode, providing good laying conditions for the insulating blanket / mat and ensuring good contact between the insulating blanket / mat and the combined grounding electrode;

[0012] 3. This technical solution uses multiple groups of concave blocks and convex blocks to realize the rapid assembly of the main high-voltage electrode, the short-side high-voltage electrode and the long-side high-voltage electrode. The assembly process is simple and the assembly efficiency is high;

[0013] 4. The size of the combined grounding electrode and the combined high-voltage electrode of the technical solution can be adjusted according to the size of the insulating blanket / mat to be tested, thereby improving the utilization rate of the grounding electrode and the high-voltage electrode, and the assembly is flexible, the combination is quick, the integrity is strong, and the use value is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the mobile bracket of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the combined grounding electrode of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the combined high-voltage electrode of the utility model;

[0018] Figure 5 This is a schematic diagram of the concave block structure of the utility model;

[0019] Figure 6 This is a schematic diagram of the convex block structure of the utility model. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-6 An embodiment of the utility model is described so as to clearly and completely describe the technical solution. Obviously, the described embodiment is only a part of the embodiments of the utility model, rather than all the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, should not be understood as a limitation on the present invention.

[0022] A combined power frequency withstand voltage test device, such as Figure 1As shown, it includes a mobile bracket 1, a combined grounding electrode 2 and a combined high-voltage electrode 3, the combined grounding electrode 2 and the combined high-voltage electrode 3 are both size-adjustable structures, the combined grounding electrode 2 is placed on the insulating panel 1-1 at the upper end of the mobile bracket 1, and the grounding terminal 2-1 on the bottom surface of the combined grounding electrode 2 passes through the eccentric hole 1-4 on the insulating panel 1-1 and is connected to the grounding wire, the combined grounding electrode 2 is flatly laid with an insulating blanket / mat to be tested, the combined high-voltage electrode 3 has the same size as the combined grounding electrode 2 and is placed on the insulating blanket / mat to be tested, and the high-voltage terminal 3-1 on the top surface of the combined high-voltage electrode 3 is connected to the high-voltage test line; in the above structure, by optimizing the structure of the grounding electrode and the high-voltage electrode, the size-adjustable combined grounding electrode 2 and the combined high-voltage electrode 3 are used to solve the problem that special test electrodes must be customized and have poor versatility due to the diverse external dimensions of the insulating blankets / mats used in line maintenance;

[0023] like Figure 3 As shown, the specific structure of the combined grounding electrode 2 is as follows: the combined grounding electrode 2 includes a main grounding electrode 2-2, a short-side grounding electrode 2-3 and a long-side grounding electrode 2-4, and the two adjacent sides of the main grounding electrode 2-2 are each provided with more than two T-shaped grooves 2-5, and one side of the short-side grounding electrode 2-3 and the long-side grounding electrode 2-4 is provided with T-shaped protrusions 2-6 that are the same in number and corresponding in position as the T-shaped grooves 2-5 on the corresponding side of the main grounding electrode 2-2, and the size of the combined grounding electrode 2 is adjusted by adapting the T-shaped protrusions 2-6 on the short-side grounding electrode 2-3 or the T-shaped protrusions 2-6 on the short-side grounding electrode 2-3 and the long-side grounding electrode 2-4 to the T-shaped grooves 2-5 on the corresponding side of the main grounding electrode 2-2; the grounding electrode 2 is provided with a plurality of T-shaped protrusions 2-6 on the short-side grounding electrode 2-3 and the long-side grounding electrode 2-4. The terminal 2-1 is fixed to the middle part of the bottom surface of the main grounding electrode 2-2; in the above structure, the T-shaped groove 2-5 and the matching T-shaped protrusion 2-6 are used to realize the assembly of the main grounding electrode 2-2, the short side grounding electrode 2-3 and the long side grounding electrode 2-4, providing good laying conditions for the insulating blanket / pad to ensure good contact between the insulating blanket / pad and the combined grounding electrode; if the size of the main grounding electrode 2-2 is 600mm×600mm, the size of the short side grounding electrode 2-3 is 200mm×600mm, and the size of the long side grounding electrode 2-4 is 200mm×800mm, then the combined grounding electrode 2 can be arbitrarily combined into different sizes of 600mm×600mm, 600mm×800mm, and 800mm×800mm.

[0024] like Figure 4As shown, the specific structure of the combined high-voltage electrode 3 is as follows: the combined high-voltage electrode 3 includes a main high-voltage electrode 3-2, a short-side high-voltage electrode 3-3 and a long-side high-voltage electrode 3-4, one side of the main high-voltage electrode 3-2 is connected to the short-side high-voltage electrode 3-3 through more than two groups of connecting components, or the two adjacent sides of the main high-voltage electrode 3-2 are respectively fixedly connected to the short-side high-voltage electrode 3-3 and the long-side high-voltage electrode 3-4 through more than two groups of connecting components, so as to achieve the adjustment of the size of the combined high-voltage electrode 3; the middle of the top surface of the main high-voltage electrode 3-2 A high-voltage terminal 3-1 is fixed, and handles 3-5 located on both sides of the high-voltage terminal 3-1 are fixed on the top surface of the main high-voltage electrode 3-2; if the size of the main high-voltage electrode 3-2 is 600mm×600mm, the size of the short-side high-voltage electrode 3-3 is 200mm×600mm, and the size of the long-side high-voltage electrode 3-4 is 200mm×800mm, then the combined high-voltage electrode 3 can be arbitrarily combined into different sizes of 600mm×600mm, 600mm×800mm, and 800mm×800mm.

[0025] Specifically, the connection assembly includes a concave block 3-6 and a convex block 3-7, such as Figure 5-6 As shown, a T-shaped slot 3-8 is formed on one side wall of the concave block 3-6, a T-shaped convex block 3-9 adapted to the T-shaped slot 3-8 is formed on one side wall of the convex block 3-7, and more than two groups of through holes are formed at the adjacent two side plate edges of the main high-voltage electrode 3-2, and holes corresponding to the positions and the same number of through holes on the corresponding sides of the main high-voltage electrode 3-2 are formed on the side plates of the short-side high-voltage electrode 3-3 and the long-side high-voltage electrode 3-4, and each group of through holes on the main high-voltage electrode 3-2 corresponds to the position of the threaded blind hole 3-10 on one end face of the corresponding concave block 3-6 and is fixedly connected by screws , after the convex block 3-7 fixed on the short-side high-voltage electrode 3-3 or the short-side high-voltage electrode 3-3 and the long-side high-voltage electrode 3-4 by screws is adapted to the concave block 3-6 on the corresponding side of the main high-voltage electrode 3-2, the short-side high-voltage electrode 3-3 or the short-side high-voltage electrode 3-3 and the long-side high-voltage electrode 3-4 are assembled with the main high-voltage electrode 3-2; in the above structure, multiple groups of concave blocks 3-6 and convex blocks 3-7 are used to realize the rapid assembly of the main high-voltage electrode 3-2, the short-side high-voltage electrode 3-3 and the long-side high-voltage electrode 3-4, the assembly process is simple, and the assembly efficiency is high;

[0026] like Figure 2As shown, the mobile bracket 1 includes an insulating panel 1-1, a frame bracket 1-2 fixed to the bottom of the insulating panel 1-1, and universal wheels 1-3 fixed at the four corners of the lower end of the frame bracket 1-2. The insulating panel 1-1 is made of epoxy resin board; in the above structure, the insulating panel 1-1 is made of epoxy resin board, and an eccentric hole 1-4 through which the grounding terminal 23 penetrates is provided at an eccentric position of the insulating panel 1-1, so as to ensure that the test of the sample is carried out on the insulating panel 1-1, and ensure the accuracy and safety of the insulating blanket / mat; the frame bracket 1-2 is assembled with aluminum profiles, and the assembly is simple and quick, and the universal wheels 1-3 are provided at the bottom of the frame bracket 1-2, so that the overall structure is easier to move.

[0027] When arranging the electrodes, the combined grounding electrode 2 is placed on the insulating panel 1-1 of the mobile bracket 1, the grounding terminal 2-1 on the bottom surface of the combined grounding electrode 2 passes through the eccentric hole 1-4 on the insulating panel 1-1 and the grounding terminal 2-1 faces downward and is reliably connected to the grounding wire; the corresponding insulating blanket / mat of the test product is laid flat on the top of the combined grounding electrode 2; the combined high-voltage electrode 3 is placed above the insulating blanket / mat of the test product in alignment with the combined grounding electrode 2, and the high-voltage terminal 3-1 on the upper end surface of the combined high-voltage electrode 3 is reliably connected to the high-voltage test line.

[0028] The sizes of the combined grounding electrode and the combined high-voltage electrode of the technical solution can be adjusted according to the size of the insulating blanket / mat to be tested, thereby improving the utilization rate of the grounding electrode and the high-voltage electrode, and the assembly is flexible, the combination is quick, the integrity is strong, and the use value is high.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A combined power frequency withstand voltage test device, characterized in that: The invention comprises a mobile support (1), a combined grounding electrode (2) and a combined high-voltage electrode (3), wherein the combined grounding electrode (2) and the combined high-voltage electrode (3) are both of adjustable size structures, the combined grounding electrode (2) is placed on an insulating panel (1-1) at the upper end of the mobile support (1), and a grounding terminal (2-1) on the bottom surface of the combined grounding electrode (2) passes through an eccentric hole (1-4) on the insulating panel (1-1) and is connected to a grounding wire, an insulating blanket / mat to be tested is laid flat on the combined grounding electrode (2), the combined high-voltage electrode (3) has the same size as the combined grounding electrode (2) and is placed aligned on the insulating blanket / mat to be tested, and the high-voltage terminal (3-1) on the top surface of the combined high-voltage electrode (3) is connected to a high-voltage test wire.

2. The combined power frequency withstand voltage test device according to claim 1 is characterized in that: The combined grounding electrode (2) comprises a main grounding electrode (2-2), a short-side grounding electrode (2-3) and a long-side grounding electrode (2-4); two or more T-shaped grooves (2-5) are formed on adjacent two sides of the main grounding electrode (2-2); one side of the short-side grounding electrode (2-3) and the long-side grounding electrode (2-4) are formed with T-shaped protrusions (2-6) of the same number and corresponding position as the T-shaped grooves (2-5) on the corresponding side of the main grounding electrode (2-2); and the size of the combined grounding electrode (2) is adjusted by matching the T-shaped protrusions (2-6) on the short-side grounding electrode (2-3) or the T-shaped protrusions (2-6) on the short-side grounding electrode (2-3) and the long-side grounding electrode (2-4) with the T-shaped grooves (2-5) on the corresponding side of the main grounding electrode (2-2); and the grounding terminal (2-1) is fixed to the middle of the bottom surface of the main grounding electrode (2-2).

3. The combined power frequency withstand voltage test device according to claim 1 is characterized in that: The combined high-voltage electrode (3) comprises a main high-voltage electrode (3-2), a short-side high-voltage electrode (3-3) and a long-side high-voltage electrode (3-4); one side of the main high-voltage electrode (3-2) is connected to the short-side high-voltage electrode (3-3) through two or more groups of connection components, or two adjacent sides of the main high-voltage electrode (3-2) are respectively fixedly connected to the short-side high-voltage electrode (3-3) and the long-side high-voltage electrode (3-4) through two or more groups of connection components, thereby achieving the size adjustment of the combined high-voltage electrode (3); a high-voltage terminal (3-1) is fixed in the middle of the top surface of the main high-voltage electrode (3-2), and handles (3-5) located on both sides of the high-voltage terminal (3-1) are fixed to the top surface of the main high-voltage electrode (3-2).

4. The combined power frequency withstand voltage test device according to claim 3 is characterized in that: The connecting assembly comprises a concave block (3-6) and a convex block (3-7), a T-shaped groove (3-8) being formed on one side wall of the concave block (3-6), a T-shaped convex block (3-9) matching the T-shaped groove (3-8) being formed on one side wall of the convex block (3-7), two or more groups of through holes being formed at the edges of the two adjacent sides of the main high-voltage electrode (3-2), holes corresponding to the positions of the through holes on the corresponding sides of the main high-voltage electrode (3-2) and the same number of holes being formed on the side surfaces of the short-side high-voltage electrode (3-3) and the long-side high-voltage electrode (3-4), and the main high-voltage electrode (3-2) having a plurality of through holes being formed on the side surfaces of the short-side high-voltage electrode (3-3) and the long-side high-voltage electrode (3-4). Each group of through holes on the electrode (3-2) corresponds to the position of the threaded blind hole (3-10) on one end surface of the corresponding concave block (3-6) and is fixedly connected by screws. After the convex block (3-7) fixed by screws on the short-side high-voltage electrode (3-3) or the short-side high-voltage electrode (3-3) and the long-side high-voltage electrode (3-4) is adapted to the concave block (3-6) on the corresponding side of the main high-voltage electrode (3-2), the short-side high-voltage electrode (3-3) or the short-side high-voltage electrode (3-3) and the long-side high-voltage electrode (3-4) are assembled with the main high-voltage electrode (3-2).

5. The combined power frequency withstand voltage test device according to claim 1, 2, 3 or 4, characterized in that: The mobile bracket (1) comprises an insulating panel (1-1), a frame bracket (1-2) fixed to the bottom of the insulating panel (1-1), and universal wheels (1-3) fixed to the four corners of the lower end of the frame bracket (1-2); the insulating panel (1-1) is made of an epoxy resin board.

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