Multidirectional short-circuit wire of high-voltage test wire

Abstract

The invention relates to the technical field of test wire storage, and particularly discloses a multi-directional short-circuit wire of a high-voltage test wire, which comprises a storage element; the short-circuit element is located in the containing element, a wire clamp of the short-circuit element penetrates through the containing element and extends to the outside, and the wire clamp is used for conducting connection between the electric leads; and the installation element is used for fixing the short circuit element in the storage element, and the whole device is more compact and convenient to carry through the design of the storage element made of a high-strength insulating material and the take-up wheel in the storage element. The device is particularly suitable for field operation environments, and the practicability and flexibility of the device are improved. High-strength insulating materials are used for protecting internal components from being affected by the external environment, and meanwhile the safety of operators is guaranteed. In particular, due to the improved wire clamp storage design, risks, such as short circuit or other potential safety hazards, caused by accidental contact with other electrical equipment or conductors are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of test line storage, in particular to a multi-directional short-circuit wire for a high-voltage test line. Background Art

[0002] During power system maintenance and overhaul, transformer dielectric loss (D-loss) testing, transformer bushing D-loss testing, and AC withstand voltage testing of transformers and circuit breakers are key steps to ensure safe and reliable equipment operation. These tests require short-circuiting the test phase with the non-test phase based on specific test requirements to ensure test accuracy and safety.

[0003] Currently, in actual field operations, fuses or multiple test wires are typically used for short-circuiting. However, this method has some significant drawbacks: When using fuses for short-circuiting, due to their relatively fragile physical properties, they are prone to breaking during operation, especially in high-voltage environments. This not only increases the complexity of the work but can also pose safety hazards. Multiple test wires are of varying lengths and difficult to manage, making them prone to knotting or tangling, which greatly inconveniences field operations. Furthermore, test wires of varying lengths require repeated adjustment for different testing scenarios, consuming a significant amount of time and labor. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that multiple test lines have different lengths and are difficult to manage, and test lines of different lengths need to be repeatedly adjusted in different test scenarios.

[0005] The above technical problems are solved by the following technical solutions: The present invention proposes a multi-directional short-circuit wire for a high-voltage test line, which includes a storage element; a short-circuit element, wherein the short-circuit element is located inside the storage element, and the wire clamp of the short-circuit element extends to the outside through the storage element, and the wire clamp is used for conducting connections between the conductive wires; and an installation element, wherein the installation element is used to fix the short-circuit element inside the storage element.

[0006] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the storage element includes an insulating base, and an insulating cover is hingedly connected to the side wall of the insulating base.

[0007] In a preferred embodiment of the multi-directional short-circuiting wire of the high-voltage test line of the present invention: the short-circuiting element includes two independent and separate wire-retracting reel wheels arranged inside the insulating base, each of the reel wheels can retract and release a conductive wire with a length of 0 to 1.5 meters, and is used for conductive connection between the conductive wires.

[0008] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test wire of the present invention: the take-up wheel has an automatic locking mechanism.

[0009] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the two take-up wheels are connected to the wire clamps on the left and right sides, and the wire clamps on the two sides are B phase and C phase respectively.

[0010] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the wire clamp at the bottom end of the insulating base is 0-phase, and the wire clamp is of fixed length and does not have a telescopic and winding mechanism.

[0011] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the mounting element includes a support frame arranged inside the insulating base, a mounting plate is installed at the end of the support frame, and the mounting plate has a positioning groove.

[0012] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the positioning groove is connected to the positioning rod on the side wall of the take-up wheel, and the side wall of the mounting plate is provided with a positioning block matching the limiting groove.

[0013] In a preferred embodiment of the multi-directional short-circuit wire of the high-voltage test line of the present invention: the side wall of the mounting plate close to the support frame is provided with a lower groove, the interior of the lower groove is provided with a clamping block, and the end of the clamping block away from the mounting plate is connected to the take-up wheel.

[0014] In a preferred embodiment of the multi-directional short-circuit wire for the high-voltage test line of the present invention: the positioning rod is connected to the clamping block and is located near the side wall of the lower groove, and the clamping block and the lower groove are distributed in a circular array.

[0015] The beneficial effects of the present invention include: the use of a storage element made of high-strength insulating material and the internal take-up reel design make the entire device more compact and portable. This is particularly suitable for field operations and improves the device's practicality and flexibility. The use of high-strength insulating material protects internal components from external environmental influences while ensuring operator safety. In particular, the improved cable clamp storage design reduces the risk of accidental contact with other electrical equipment or conductors, such as short circuits or other safety hazards. Two independently operating take-up reels, each equipped with an automatic locking mechanism, allow users to flexibly adjust the conductive wire length (0 to 1.5 meters) according to actual needs, greatly facilitating short-circuiting requirements at different distances and simplifying the operation process. The optimized cable clamp storage position reduces the risk of wear caused by friction, and the use of soft material padding in the storage slot further protects the cable clamp from wear, extending the device's service life. The hinged door and torsion spring design not only enhance the device's overall aesthetics, but also improve ease of use and safety. Especially during short-circuiting operations, the door deflects the cable clamp, facilitating removal and reducing the risk of accidental contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0017] Figure 1 Shows the overall structural diagram of the multi-directional short-circuit connection of the high-voltage test line;

[0018] Figure 2 A schematic diagram showing the connection structure of the short-circuit element and the mounting element of the multi-directional short-circuit wire of the high-voltage test line is shown;

[0019] Figure 3 Shows a schematic diagram of the installation component structure of the multi-directional short-circuit wire of the high-voltage test line;

[0020] Figure 4 Shows the schematic diagram of the installation components and the split structure of the short-circuit components of the multi-directional short-circuit wire of the high-voltage test line;

[0021] Figure 5 for Figure 4 A in the middle is an enlarged structural diagram;

[0022] Figure 6 A schematic diagram of the wire clamp storage structure for the multi-directional short-circuit wire of the high-voltage test line is shown.

[0023] Figure 7 A schematic diagram of the unfolded structure of the wire clamp storage door of the multi-directional short-circuit wire of the high-voltage test line is shown. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0025] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0026] Reference Figure 1-Figure 5This embodiment provides a multi-directional shorting cable for a high-voltage test line, comprising a storage element 1, an insulating base 11 made of high-strength insulating material, and an insulating cover 12 hingedly connected to its side wall. This design not only effectively protects the internal components from the external environment, but also ensures the safety of the operator. In addition, the compact design makes the entire device easy to carry and suitable for various on-site work environments; the shorting element 2 is located inside the storage element 1, and the shorting element 2 has a wire clamp 21 that extends through the storage element 1 to the outside. The wire clamp 21 is used to connect the conductive wires. It is placed inside the storage element 1 and includes two independently operated take-up reels 22. Each take-up reel can retract and release conductive wires with a length of 0 to 1.5 meters and is equipped with an automatic locking mechanism. The wire clamp 21 extends through the storage element 1 to the outside to achieve conductive connection between the conductive wires. The length of the two side clamps 21 (phase B and phase C) can be flexibly adjusted according to actual needs, while the bottom clamp 21 (phase 0) is fixed in length and does not have a retractable function. This design not only meets the short-circuit requirements at different distances, but also the mounting element 3 , which is used to fix the short-circuit element 2 inside the receiving element 1 .

[0027] Reference Figure 1 and Figure 2 , as an optional embodiment, it is placed inside the storage element 1 and includes two independently operated take-up wheels 22, each of which can retract and unreel conductive wires with a length of 0 to 1.5 meters and is equipped with an automatic locking mechanism. The wire clamp 21 extends through the storage element 1 to the outside and is used to achieve conductive connection between the conductive wires. The wire clamps 21 on both sides (phase B and phase C) can be flexibly adjusted in length according to actual needs, while the wire clamp 21 at the bottom (phase 0) is a fixed length and has no telescopic function. This design not only meets the short-circuiting requirements at different distances, but also simplifies the operating steps.

[0028] The storage element 1 includes an insulating base 11, and the side wall of the insulating base 11 is hinged with an insulating cover 12. The short-circuit element 2 includes two independent wire-reeling reels 22 arranged inside the insulating base 11. Each wire-reeling reel 22 can retract and release conductive wires with a length of 0 to 1.5 meters and is used for conductive connection between each conductive wire. The wire-reeling reels 22 have an automatic locking mechanism. The two wire-reeling reels 22 are connected to the wire clamps 21 on the left and right sides, and the wire clamps 21 on both sides are phase B and phase C respectively. The wire clamp 21 at the bottom end of the insulating base 11 is phase 0, and its wire clamp 21 is a fixed length and does not have a telescopic winding mechanism.

[0029] The short-circuit element 2 is located inside the storage element 1 and includes two independently operated take-up reels 22. Each take-up reel 22 can retract and release conductive wires with a length of 0 to 1.5 meters and has an automatic locking mechanism to maintain any desired length. The wire clamps 21 (Phase B and Phase C) are connected to the take-up reel 22 through the conductive wire, while the bottom wire clamp 21 (Phase 0) is fixed in length and does not have a telescopic winding mechanism, which is used to achieve conductive connection between the conductive wires. When a short-circuit operation is required, the user only needs to pull the corresponding wire clamp 21 to adjust the length to quickly complete the short-circuit, which greatly simplifies the operation process.

[0030] Reference Figure 2-Figure 5 As an optional embodiment, it comprises a support frame 31 and a mounting plate 32. Mounting plate 32 includes a positioning slot 33, ensuring that shorting element 2 is securely fixed within receiving element 1. The coordinated use of a positioning rod 34 and a retaining block 38 further enhances the positional stability of take-up reel 22, preventing potential shifting or loosening during operation. Furthermore, a limiting slot 35 on the sidewall of mounting plate 32 mates with a positioning block 36, further enhancing the overall structural stability.

[0031] The mounting element 3 includes a support frame 31 disposed inside the insulating base 11 . A mounting plate 32 is mounted on an end of the support frame 31 . The mounting plate 32 has a positioning groove 33 .

[0032] The positioning groove 33 is connected to the positioning rod 34 on the side wall of the take-up reel 22. The side wall of the mounting plate 32 is provided with a positioning block 36 that matches the limiting groove 35. The side wall of the mounting plate 32 near the support frame 31 is provided with a lower groove 37, and the interior of the lower groove 37 is provided with a clamping block 38. The end of the clamping block 38 away from the mounting plate 32 is connected to the take-up reel 22.

[0033] The positioning rod 34 is connected to the block 38 and is located near the side wall of the lower groove 37. The block 38 and the lower groove 37 are distributed in a circular array, wherein the block 38 and the positioning rod 34 are arranged in a T-shape to form an oblique angle A surface.

[0034] It should be specifically explained that when the take-up reel 22 needs to be installed inside the insulating base 11, the positioning rod is aligned with the positioning groove 33, and the limit groove 35 is aligned with the positioning block 36. After the alignment is completed, the block 38 is moved to engage the inside of the lower groove 37. Since the block 38 is set at an angle, the angled surface A will be squeezed during the extrusion process, and the angled surface A causes the block 38 to move away from the mounting plate 32. The block 38 is made of plastic and has a certain elasticity. Therefore, after it is separated from the mounting plate 32 and located in the lower groove 37, the elastic block 38 directly rebounds and is fixed to the mounting plate 32, which is used to firmly fix the take-up reel 22 inside the storage element 1. The design of the positioning rod 34 and the block 38 ensures the position accuracy and stability of the take-up reel 22, preventing it from deflecting or loosening during operation. In addition, the lower groove 37 and the circular array of blocks 38 further enhance the stability and reliability of the structure.

[0035] Reference Figure 6 In one embodiment provided in the present application, this embodiment is different from other embodiments in that the wire clamp 21 is fixed on the side wall of the insulating base 11.

[0036] However, since the wire clamp 21 is not designed for storage, it is easily damaged by the external environment and there is a risk of accidental contact with other electrical equipment or conductors, which may cause a short circuit or other safety hazards.

[0037] To overcome these issues, this embodiment improves the design of the wire clip 21 so that it can be stored in the insulating base 11. Specifically, the initial attempt was to store the wire clip 21 in the side wall of the insulating base 11. However, because the wire clip 21 does not have a retractable function, storing it directly in the side wall could cause wear and tear. Therefore, the design was further optimized to adjust the wire clip 21 to the front end of the insulating base 11 for storage, thereby reducing the risk of wear caused by friction.

[0038] Reference Figure 7 In some implementations, this embodiment differs from other embodiments in that the wire clip 21 is accommodated in the inner wall of the insulating base 11 .

[0039] The three sides of the insulating base 11 are provided with doors, which are hinged and connected by torsion springs. This design not only enhances the overall aesthetics of the device, but also improves the convenience and safety of use.

[0040] When a short circuit is required, the insulating cover 12 is opened. The elastic force of the torsion spring can drive the door and the wire clamp 21 to produce a 45-degree deflection, which is convenient for later removal and can effectively reduce the risk of accidental touch, ensuring the safety of operation. The wire clamp 21 is then removed from the storage slot, and the wire is pulled out of the take-up reel 22 to extend the wire for short circuit. When the wire clamp 21 is not in use, it is directly inserted into the storage clip on the inner wall of the insulating base 11. This can prevent the wire clamp from being exposed to the outside world and being affected by the external environment, thereby extending its service life. In addition, the inside of the storage slot can be padded with soft material to further protect the wire clamp from wear.

[0041] When the entire device is not in use, when the door drives the wire clamp 21 to return to 45 degrees, the three doors are manually restored to a vertical state or deflected inwardly by 0-40 degrees after the vertical state, and then the insulating cover 12 is covered to limit and fix the doors.

[0042] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A multi-directional short-circuit wire for a high-voltage test line, characterized by: include, Receiving element (1); A short-circuit element (2), the short-circuit element (2) is located inside the receiving element (1), and a wire clamp (21) of the short-circuit element (2) passes through the receiving element (1) and extends to the outside, the wire clamp (21) being used for conducting connections between the conductive wires; and The mounting element (3) is used to fix the short-circuit element (2) inside the receiving element (1).

2. The multi-directional short-circuit wire for a high-voltage test line according to claim 1, characterized in that: The storage element (1) comprises an insulating base (11), and an insulating cover (12) is hingedly connected to the side wall of the insulating base (11).

3. The multi-directional short-circuit wire for a high-voltage test line according to claim 2, characterized in that: The short-circuit element (2) comprises two independent and separate wire-reeling reels (22) arranged inside the insulating base (11), each of the wire-reeling reels (22) can reel in and out a conductive wire with a length of 0 to 1.5 meters and is used for conducting connections between the conductive wires.

4. The multi-directional short-circuit wire for a high-voltage test line according to claim 3, characterized in that: The take-up wheel (22) has an automatic locking mechanism.

5. The multi-directional short-circuit wire for a high-voltage test line according to claim 4, characterized in that: The two take-up wheels (22) are connected to the wire clamps (21) on the left and right sides, and the wire clamps (21) on the two sides are B phase and C phase respectively.

6. The multi-directional short-circuit wire for a high-voltage test line according to claim 5, characterized in that: The wire clamp (21) at the bottom end of the insulating base (11) is 0-phase, and the wire clamp (21) is of fixed length and does not have a telescopic and retracting mechanism.

7. The multi-directional short-circuit wire for a high-voltage test line according to claim 6, characterized in that: The mounting element (3) comprises a support frame (31) arranged inside the insulating base (11), a mounting plate (32) is mounted on the end of the support frame (31), and the mounting plate (32) has a positioning groove (33).

8. The multi-directional short-circuit wire for a high-voltage test line according to claim 7, characterized in that: The positioning groove (33) is connected to the positioning rod (34) on the side wall of the take-up wheel (22), and the side wall of the mounting plate (32) is provided with a positioning block (36) matching the limiting groove (35).

9. The multi-directional short-circuit wire for a high-voltage test line according to claim 8, characterized in that: A lower groove (37) is provided on the side wall of the mounting plate (32) close to the support frame (31), and a clamping block (38) is provided inside the lower groove (37). The end of the clamping block (38) away from the mounting plate (32) is connected to the take-up wheel (22).

10. The multi-directional short-circuit wire for a high-voltage test line according to claim 9, characterized in that: The positioning rod (34) is connected to the clamping block (38) and is located near the side wall of the lower groove (37). The clamping block (38) and the lower groove (37) are distributed in a circular array.

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