Medium-voltage cable partial discharge detection device

Abstract

The utility model provides a medium-voltage cable partial discharge detection device, and belongs to the technical field of cable discharge detection. Comprising an upper shell; the lower shell is rotationally connected with the upper shell; the limiting part I is mounted on the upper shell; the lifting part moves on the lower shell; and the limiting part II is movably mounted on the lower shell. According to the utility model, through the arrangement of the limiting part I, the position of the cable needing to be detected is accurately limited, and the detection equipment is ensured to carry out measurement at a correct position, so that the repeatability and the reliability of a test result are improved, and adjustment can be carried out according to the size of the cable so as to adapt to cables with different diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of cable discharge detection, in particular to a medium-voltage cable partial discharge detection device. Background Art

[0002] A cable is an electrical energy or signal transmission device, usually made of one or more mutually insulated conductors and an outer insulating protective layer. It is a conductor that transmits electricity or information from one place to another. Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple strands of wires and an insulating layer, and are used to connect circuits, electrical appliances, etc. Cables need to be tested for discharge during maintenance, so a cable partial discharge detection device is used.

[0003] In the prior art, during the detection process, due to the lack of proper fixation of the cable, the cable may bend or twist during installation or use, or slide under the action of tension or other external forces. For long-distance cables, it is a challenge to ensure that the detection equipment can accurately locate the detection point. If the position of the detection point cannot be accurately determined, the test results may be inaccurate or cannot be compared with other test data, thereby affecting the stability and accuracy of partial discharge detection. Therefore, the present application provides a medium-voltage cable partial discharge detection device to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a medium voltage cable partial discharge detection device to solve the problem that the existing cable partial discharge detection device has no proper fixation of the cable, which easily leads to the inaccuracy of the detection structure.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A medium voltage cable partial discharge detection device comprises an upper shell; a lower shell rotatably connected to the upper shell; a first limiting part installed on the upper shell; a lifting part movably on the lower shell; and a second limiting part movably installed on the lower shell.

[0007] The limiting part 1 includes a rotating part 1; an arc-shaped clamp installed on the rotating part 1.

[0008] The lifting part includes a support member; the support part is movably installed on the support member through a sliding member.

[0009] The second limiting part includes a second rotating member; the limiting member is installed on the second rotating member.

[0010] A plurality of high-sensitivity sensors are detachably mounted in the lower housing; a plurality of filters are detachably mounted in the lower housing, and the number of the filters is consistent with the number of the high-sensitivity sensors.

[0011] The supporting feet are detachably mounted on the lower shell; the display is mounted on the upper shell or the lower shell, and the display includes a display screen and control buttons.

[0012] The clamp is detachably mounted on the upper shell or the lower shell. The upper shell and the lower shell are made of aluminum alloy combined with carbon fiber reinforced plastic.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] In the above scheme, by setting the limiting part 1, the position of the cable to be tested is accurately limited to ensure that the detection equipment measures at the correct position, thereby improving the repeatability and reliability of the test results, and can be adjusted according to the size of the cable to adapt to cables of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a medium voltage cable partial discharge detection device;

[0017] Figure 2 Schematic diagram of the second structure of the limiting part;

[0018] Figure 3 Schematic diagram of the support structure;

[0019] Figure 4 Schematic diagram of the supporting foot structure;

[0020] Figure 5 is a schematic diagram of the filter structure;

[0021] Figure 6 It is a structural diagram of a rotating part.

[0022] Figure 7 Schematic diagram of the limiter structure.

[0023] [Reference Signs]

[0024] 1. Upper shell; 2. Lower shell; 3. Clamp; 4. Limiting part 1; 401. Rotating part 1; 402. Arc clamp; 5. Display; 6. Limiting part 2; 601. Rotating part 2; 602. Limiting part; 7. Lifting part; 8. Support foot; 9. Support part; 10. Support part; 11. Sliding part; 12. Filter; 13. High-sensitivity sensor.

[0025] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0026] The following describes in detail a medium-voltage cable partial discharge detection device provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0027] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, an embodiment of the present invention provides a medium voltage cable partial discharge detection device, including an upper shell 1; a lower shell 2, rotatably connected to the upper shell 1; a limiting part 4, installed on the upper shell 1; a lifting part 7, movable on the lower shell 2; and a limiting part 6, movably installed on the lower shell 2.

[0028] The upper housing 1 and the lower housing 2 are usually the main parts of the detection device, and are used to protect the internal sensors and electronic components from the external environment.

[0029] like Figure 1 、 Figure 3 and Figure 6 As shown, the limiting portion 4 includes a rotating member 401 and an arc-shaped clamp 402 installed on the rotating member 401.

[0030] The limiting part 4 is used to limit the cables of different diameters to ensure the stability of the cables during the detection process. The existence of the limiting part 4 contributes to the stability and reliability of the entire detection system because it ensures the consistency and accuracy of the detected cables throughout the monitoring process.

[0031] like Figure 2 and Figure 3 As shown, the lifting part 7 includes a support member 9; a support part 10, which is movably mounted on the support member 9 through a sliding member 11.

[0032] The function of the lifting part 7 is to adapt to cables of different diameters and ensure detection accuracy and stability.

[0033] The sliding member 11 is a combination of a slider and a self-locking slide rod or a self-locking rotating threaded rod and a slider, etc.

[0034] like Figure 2 and Figure 7 As shown, the second limiting portion 6 includes a second rotating member 601 and a limiting member 602 installed on the second rotating member 601 .

[0035] The second limiting portion 6 is used to fix the lifting portion 7, making it easy to store the lifting portion 7 and making the entire device easy to carry.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, a plurality of high-sensitivity sensors 13 are detachably mounted in the lower housing 2 ; a plurality of filters 12 are detachably mounted in the lower housing 2 , and the number of the filters 12 is consistent with the number of the high-sensitivity sensors 13 .

[0037] The high-sensitivity sensor 13 is used to capture weak partial discharge signals. By deploying multiple such sensors in the lower shell 2, the detection accuracy and positioning accuracy of partial discharge events can be improved. The number of sensors can be increased or decreased as needed, so that the detection device can adapt to cables of different lengths and types, as well as different monitoring environments.

[0038] The function of these filters 12 is to filter out noises other than partial discharge signals, such as electromagnetic interference, so as to ensure the quality of data output by the sensor.

[0039] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the support feet 8 are detachably mounted on the lower shell 2; the display 5 is mounted on the upper shell 1 or the lower shell 2, and the display 5 includes a display screen and control buttons.

[0040] The support feet 8 provide stable support for the entire detection device, which helps to ensure that the device remains stable during the detection process, reduces interference caused by external factors such as vibration or uneven surfaces, and thus improves detection accuracy.

[0041] like Figure 1、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the clamp 3 is detachably mounted on the upper shell 1 or the lower shell 2 , and the upper shell 1 and the lower shell 2 are made of aluminum alloy combined with carbon fiber reinforced plastic.

[0042] Carbon fiber materials are known for their high strength, high stiffness and very light weight. Combined with aluminum alloy materials, they can significantly reduce the overall weight of the device while maintaining the necessary mechanical strength, thereby improving the portability and operation convenience of the equipment. The combination of aluminum alloy and carbon fiber, through certain manufacturing processes such as melt infiltration or extrusion casting, can produce composite materials with excellent performance, which can minimize the reaction between the fiber and the aluminum alloy, reduce defects such as voids and shrinkage holes, thereby improving the overall structural strength and stability.

[0043] The technical solution provided by the present invention is that when in use, the cable is passed through the upper shell 1 and the lower shell 2, the cable is limited by the limiting part 4, the high-sensitivity sensor 13 detects the partial discharge of the cable, and the height of the lower shell 2 can be adjusted by adjusting the position of the support member 9.

[0044] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A medium voltage cable partial discharge detection device, characterized in that: include: Upper housing (1); A lower housing (2) is rotatably connected to the upper housing (1); A first limiting portion (4) is mounted on the upper housing (1); A lifting portion (7) movable on the lower housing (2); The second limiting portion (6) is movably mounted on the lower housing (2).

2. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: The limiting portion 1 (4) includes a rotating member 1 (401); The arc-shaped clamp (402) is mounted on the rotating member 1 (401).

3. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: The lifting portion (7) includes a support member (9); The support portion (10) is movably mounted on the support member (9) via a sliding member (11).

4. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: The second limiting portion (6) includes a second rotating member (601); The limiting member (602) is mounted on the second rotating member (601).

5. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: Also includes: A plurality of high-sensitivity sensors (13) are detachably mounted in the lower housing (2); A plurality of filters (12) are detachably mounted in the lower housing (2), and the number of the filters (12) is consistent with the number of the high-sensitivity sensors (13).

6. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: Also includes: Support legs (8) detachably mounted on the lower housing (2); A display (5) is mounted on the upper housing (1) or the lower housing (2), and the display (5) includes a display screen and control buttons.

7. The medium voltage cable partial discharge detection device according to claim 1, characterized in that: Also includes: The clamping member (3) is detachably mounted on the upper shell (1) or the lower shell (2); the upper shell (1) and the lower shell (2) are made of an aluminum alloy combined with carbon fiber reinforced plastic.

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