Current transformer protection device

Abstract

The utility model discloses a current transformer protection device which comprises an installation frame, the installation frame is provided with a protection device, the protection device comprises a first shell, a second shell and fixing plates, the fixing plates are connected to the two sides of the first shell and the two sides of the second shell respectively, the outer sides of the fixing plates are provided with quick release devices, and one side of the first shell is provided with a wire clamping device. The wire clamping device comprises a wire bunching sleeve, a rotating sleeve, an adaptive sleeve, a straight groove, a sliding block, a translation frame, an adaptive groove, an adaptive rod, a connecting spring and a connecting sleeve, the inner wall of the rotating sleeve is connected with the outer wall of the connecting sleeve through threads, the straight groove is formed in the side wall of the wire bunching sleeve, the sliding block is arranged in the wire bunching sleeve, and the outer side of the translation frame penetrates through the straight groove to be connected with the connecting sleeve; according to the wiring harness, comprehensive physical protection of the mutual inductor is achieved, the problem of convenience of installation and maintenance is solved, and meanwhile stability and safety of electrical connection are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformer protection, and more particularly to a current transformer protection device. Background Art

[0002] In the current field of current transformer protection technology, there are some problems that need to be solved urgently. These problems not only affect the safety and reliability of the use of current transformers, but may also lead to potential risks in the entire power system.

[0003] First, the current transformers in the prior art are usually in an exposed state and lack effective external protection measures. This exposed design makes the current transformers extremely vulnerable to damage from various external factors. For example, in outdoor environments, they may be eroded by natural factors such as rain, dust, and ultraviolet rays; in industrial environments, they may be damaged by human factors such as mechanical collisions and chemical corrosion. This fragile state not only reduces the service life of the current transformer, but may also cause equipment failure and even safety accidents. The insulation performance of current transformers exposed to harsh environments for a long time may gradually decline, and the accuracy may be affected, which may eventually lead to increased measurement errors or equipment failure.

[0004] Secondly, although some devices that use protective shells to protect transformers have appeared on the market, these protection devices still have obvious design deficiencies. The most prominent problem is that the protective shells cannot be quickly assembled and disassembled. This design defect leads to many inconveniences: first, during the installation process, a lot of time and manpower are required, which increases the installation cost; second, during routine maintenance and inspection, it is difficult to quickly access the internal current transformer, which prolongs the maintenance time and may affect the normal operation of the power system; third, in an emergency, if the transformer needs to be quickly replaced or inspected, the cumbersome disassembly and assembly process may delay the best processing time and increase safety risks. This design not only reduces work efficiency, but may also indirectly affect the reliability and safety of the entire power system.

[0005] In addition, existing protective devices also have obvious defects in design details, especially in the handling of connecting wires. Wire holes are usually opened on the surface of the protective device for the connection wires to pass through. However, the diameter of these wire holes is often much larger than the diameter of the actual connection wires. Although this design provides certain conveniences during installation, it also brings serious safety hazards. Due to the large gap between the wire hole and the connection wire, it is difficult to effectively lock and fix the connection wire. In actual use, if a large external force is accidentally applied to the connection wire, it is easy to cause the connection wire to fall off from the wire hole. This falling off may not only cause the interruption of the electrical connection and affect the normal operation of the equipment, but may also cause more serious safety problems, such as short circuit, electric arc, etc. Especially in high-voltage environments, the falling off of the connection wire may cause serious electrical accidents, threatening the safety of the operator and the integrity of the equipment. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the problems existing in the prior art, the utility model provides a current transformer protection device to solve the technical problems mentioned in the background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current transformer protection device includes a mounting bracket, characterized in that: the mounting bracket is equipped with a protection device, the protection device includes a first shell, a second shell and a fixing plate, the first shell and the second shell are respectively connected to one side of the mounting bracket, the fixing plate is respectively connected to both sides of the first shell and the second shell, a quick release device is provided on the outer side of the fixing plate, and a wire clamping device is provided on one side of the first shell, the wire clamping device includes a wire harness sleeve, a rotating sleeve, an adapter sleeve, a straight groove, a slider, a translation frame, an adapter groove, an adapter rod, a connecting spring and a connecting sleeve, the inner wall of the rotating sleeve is movably connected to the outer wall of the connecting sleeve through a thread, and the threads arranged on both sides of the inner wall of the rotating sleeve are symmetrically arranged, the straight groove is opened on the side wall of the wire harness sleeve, the slider is arranged in the wire harness sleeve, the outer side of the translation frame passes through the straight groove and is connected to the connecting sleeve, a plurality of the adapter grooves are opened on the side wall of the wire harness sleeve, one end of the adapter rod is connected to the outer wall of the rotating sleeve through a connecting spring, and the other end of the adapter rod is inserted into the adapter groove.

[0010] The present invention is further configured such that one side of each of the first shell and the second shell is provided with a pressing block, and one side of the pressing block is provided with a sealing strip.

[0011] The utility model is further configured such that a push spring is connected to one end of the slider, and a push plate is connected to the other end of the push spring.

[0012] The utility model is further configured such that a slide plate is connected to one side of the slider, a slide groove is provided in the cable harness, and the slide plate is slidably arranged in the slide groove.

[0013] The utility model is further configured such that a connecting block is connected to one side of the sliding block, a connecting groove is provided on the translation frame, and the connecting block is slidably arranged in the connecting groove.

[0014] The present invention is further configured as follows: the quick-release device includes a clamping sleeve, a clamping rod, a spring piece, a release sleeve, a release groove and a threaded groove; the clamping sleeve is detachably mounted on the outside of the release sleeve; the spring piece is arranged along the threaded line on the outside of the clamping rod; the release sleeve is movably mounted on the outside of the clamping rod; the release groove is provided on the side wall of the release sleeve, and the position of the release groove corresponds to the position of the spring piece; the threaded groove is provided on the inside of the clamping sleeve; the configuration of the quick-release device can realize rapid assembly and disassembly of the protective device.

[0015] The utility model is further configured such that one end of the clamping rod is connected to a reset spring, and the provision of the reset spring simplifies the operation.

[0016] The present invention is further configured such that one end of the release sleeve is connected to a handle, and the arrangement of the handle facilitates the use of the release sleeve.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a current transformer protection device with the following beneficial effects:

[0019] 1. The innovative design of the protection device cleverly solves the problem of exposed and vulnerable current transformers in the existing technology. It consists of a first shell, a second shell, and a fixing plate, which are respectively connected to both sides of the mounting frame. This structure provides all-round physical protection for the current transformer, effectively preventing damage to the transformer from external factors such as rain, dust, and mechanical collisions. The design of the clamping block and sealing strip further enhances the protection effect, ensures the sealing of the connection between the first shell and the second shell, and improves the protection level of the overall structure. This enclosed protection not only extends the service life of the current transformer, but also improves its reliability and safety in harsh environments.

[0020] 2. The design of the quick-release device cleverly solves the problem of the protective shell being difficult to assemble quickly in the existing technology. It includes components such as a ferrule, a clamping rod, a spring clip, a release sleeve, a release groove, and a threaded groove. Through this innovative design, the protective device can be quickly installed and disassembled. The operator only needs to control the release sleeve through the handle to easily insert the clamping rod into the ferrule. The automatic expansion of the spring clip and the cooperation of the threaded groove ensure a firm connection. This quick assembly mechanism not only greatly reduces installation time and labor costs, but also facilitates daily maintenance and rapid handling in emergency situations, thereby improving the operational efficiency and flexibility of the entire system.

[0021] 3. The design of the wire clamping device cleverly solves the problem of difficulty in locking and securing connecting wires in existing technologies. It consists of a wire harness, a rotating sleeve, an adapter sleeve, a straight slot, a slider, a translation frame, an adapter slot, an adapter rod, a connecting spring, and a connecting sleeve. This complex and sophisticated design achieves precise fixation and protection of the connecting wires. By rotating the adapter sleeve and rotating sleeve, the movement of the slider, push plate, and other components can be controlled to clamp the wires. The tilted design of the slide plate and slide slot increases the clamping force, and the push spring provides an elastic buffer to ensure that the wires are firmly fixed without excessive compression. This design not only effectively prevents the connecting wires from falling off, but also protects the wires from excessive bending and pulling, greatly improving the stability and safety of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a current transformer protection device in the present utility model;

[0023] Figure 2 It is a schematic cross-sectional view of the structure of the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0025] Figure 4 This is a structural diagram of the clamping rod and the release sleeve in the utility model;

[0026] Figure 5 This is a schematic cross-sectional view of the ferrule portion of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the wire clamping device of the present invention;

[0028] Figure 7 for Figure 6 Schematic diagram of the local enlarged structure at B in the middle;

[0029] Figure 8 It is a structural diagram of the connecting sleeve and the slider part in the utility model.

[0030] In the figure: 1. Mounting frame; 2. First shell; 3. Second shell; 4. Fixing plate; 5. Cable harness; 6. Rotating sleeve; 7. Adapter sleeve; 8. Straight groove; 9. Slider; 10. Translation frame; 11. Adapter groove; 12. Adapter rod; 13. Connecting spring; 14. Connecting sleeve; 15. Pressing block; 16. Sealing strip; 17. Push spring; 18. Push plate; 19. Slide plate; 20. Slide groove; 21. Connecting block; 22. Connecting groove; 23. Clamping sleeve; 24. Clamping rod; 25. Shrapnel; 26. Release sleeve; 27. Release groove; 28. Threaded groove; 29. ​​Return spring; 30. Handle. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0034] See also Figures 1-8 A current transformer protection device includes a mounting frame 1, which is characterized in that: a protection device is installed on the mounting frame 1, the protection device includes a first shell 2, a second shell 3 and a fixing plate 4, the first shell 2 and the second shell 3 are respectively connected to one side of the mounting frame 1, the fixing plate 4 is respectively connected to both sides of the first shell 2 and the second shell 3, a quick release device is provided on the outside of the fixing plate 4, a wire clamping device is provided on one side of the first shell 2, the wire clamping device includes a wire harness sleeve 5, a rotating sleeve 6, an adapter sleeve 7, a straight slot 8, a slider 9, a translation frame 10, an adapter sleeve 11, a sliding block 12, a sliding block 13, a sliding block 14, a sliding block 15, a sliding block 16, a sliding block 17, a sliding block 18, a sliding block 19, a sliding block 20, a sliding block 21, a sliding block 22, a sliding block 23, a sliding block 24, a sliding block 25, a sliding block 26, a sliding block 27, a sliding block 28, a sliding block 29, a sliding block 30, a sliding block 31, a sliding block 32, a sliding block 33, a sliding block 34, a sliding block 35, a sliding block 36, a sliding block 37, a sliding block 38, a sliding block 39, a sliding block 31, a sliding block 31, a sliding block 31, a sliding block 32, a sliding block 33, a sliding block 34, a sliding block 35, a sliding block 36, a sliding block 37, a sliding block 38, a sliding block 39, a sliding block 3 Matching groove 11, adapter rod 12, connecting spring 13 and connecting sleeve 14, the inner wall of the rotating sleeve 6 is movably connected to the outer wall of the connecting sleeve 14 through a thread, and the threads arranged on both sides of the inner wall of the rotating sleeve 6 are symmetrically arranged, the straight groove 8 is opened on the side wall of the wiring sleeve 5, the slider 9 is arranged in the wiring sleeve 5, the outer side of the translation frame 10 passes through the straight groove 8 and is connected to the connecting sleeve 14, multiple adapter grooves 11 are opened on the side wall of the wiring sleeve 5, one end of the adapter rod 12 is connected to the outer wall of the rotating sleeve 6 through the connecting spring 13, and the other end of the adapter rod 12 is inserted into the adapter groove 11.

[0035] A pressing block 15 is provided on one side of the first shell 2 and the second shell 3 , and a sealing strip 16 is provided on one side of the pressing block 15 .

[0036] A push spring 17 is connected to one side of the slider 9 , and a push plate 18 is connected to the other end of the push spring 17 .

[0037] A slide plate 19 is connected to one side of the slider 9 , a slide groove 20 is provided in the cable harness 5 , and the slide plate 19 is slidably arranged in the slide groove 20 .

[0038] A connecting block 21 is connected to one side of the slider 9 , and a connecting groove 22 is formed on the translation frame 10 , in which the connecting block 21 is slidably arranged.

[0039] In this embodiment, when it is necessary to connect the wire to the mutual inductor, the adapter sleeve 7 is first rotated so that the adapter sleeve 7 moves along the thread on the outside of the harness sleeve 5, and then the outside of the adapter rod 12 loses the limit of the adapter sleeve 7, and then the rotating sleeve 6 is rotated, and the rotating sleeve 6 drives the adapter rod 12 to move. Due to the rounded structure design at the end of the adapter rod 12 and the edge of the adapter groove 11, the side wall of the adapter groove 11 squeezes one end of the adapter rod 12, so that one end of the adapter rod 12 slides out of the adapter groove 11, and then the other end of the adapter rod 12 will The connecting spring 13 is driven to stretch. At the same time, the inner wall of the rotating sleeve 6 and the outer wall of the connecting sleeve 14 are movably connected by threads, and the straight groove 8 limits the translation frame 10 and the connecting sleeve 14, so that the connecting sleeve 14 and the translation frame 10 will not rotate. Then the connecting sleeve 14 will drive the translation frame 10 to slide along the straight groove 8, and then the translation frame 10 will drive the slider 9 to move through the cooperation of the connecting groove 22 and the connecting block 21, and then the slider 9 will drive the slide plate 19 to slide along the slide groove 20. Since the slide plate 19 and the slide groove 2 0 inclined structure design, then the slide plate 19 drives the slider 9 to spread outward while sliding along the slide groove 20, and then the slider 9 drives the connecting block 21 to slide along the connecting groove 22, and then the slider 9 drives the push plate 18 to spread outward through the push spring 17, and then one end of the wire passes through the inside of the harness sleeve 5 to connect with the mutual inductor, and then the rotating sleeve 6 is rotated in the opposite direction, and the rotating sleeve 6 will drive the translation frame 10 to slide and reset along the straight groove 8 by cooperating with the connecting sleeve 14, and then the translation frame 10 will push the slider 9 to reset Position, then the slider 9 will drive the slider 19 to slide and reset along the slide groove 20, then the slider 19 will drive the slider 9 to gather inward and reset, then the slider 9 will drive the connecting block 21 to reset along the connecting groove 22, then the slider 9 will drive the push spring 17 and the push plate 18 to gather inward and reset, then the inner side of the push plate 18 will contact the outside of the wire, then the slider 9 will squeeze the push spring 17, and then the slider 9 will clamp the wire through the push spring 17 and the push plate 18, thereby achieving a stable connection with the wire.

[0040] See also Figure 1-Figure 5As an implementation method of the quick release device: the quick release device includes a sleeve 23, a clamping rod 24, a spring piece 25, a release sleeve 26, a release groove 27 and a threaded groove 28. The sleeve 23 is detachably mounted on the outside of the release sleeve 26, the spring piece 25 is arranged along the thread line on the outside of the clamping rod 24, the release sleeve 26 is movably mounted on the outside of the clamping rod 24, the release groove 27 is opened on the side wall of the release sleeve 26, and the position of the release groove 27 corresponds to the position of the spring piece 25, and the threaded groove 28 is opened on the inside of the sleeve 23.

[0041] One end of the clamping rod 24 is connected to a return spring 29 .

[0042] One end of the release sleeve 26 is connected to a handle 30 .

[0043] More specifically, when the protective device needs to be installed on the outside of the transformer, first, the first shell 2 is sleeved on one side of the transformer, and then the wires are passed through the wire harness 5 to connect with the transformer, and then the sealing strip 16 is installed on one side of the clamping block 15 set on one side of the first shell 2, and then the second shell 3 is installed on one side of the first shell 2, and the second shell 3 is sleeved on the other side of the transformer, and then the clamping block 15 set on one side of the second shell 3 will cooperate with the clamping block 15 set on one side of the first shell 2 to clamp the sealing strip 16, ensuring the sealing of the connection between the first shell 2 and the second shell 3, and then place the clamping sleeve 23 on one side of the fixing plate 4 set on the outside of the second shell 3, and then press against one end of the clamping rod 24, and then pull the handle 30, the handle 30 will drive the release sleeve 26 to slide, and then the release sleeve 26 will drive the release groove 27 to move, and at the same time the release sleeve 26 will squeeze the return spring 29 set on one side, and then The side walls of the rear release groove 27 will squeeze the outer side of the spring piece 25, causing the spring piece 25 to gather inward, and then the release sleeve 26 and the card rod 24 will pass through the fixed plate 4 connected to the outside of the first shell 2 and enter the card sleeve 23. When the card rod 24 is inserted into the card sleeve 23, the handle 30 is released, and then the return spring 29 will push the release sleeve 26 to reset, and then the release sleeve 26 will drive the release groove 27 to reset, and then the outer side of the spring piece 25 loses the limit of the side wall of the release groove 27, and then the spring piece 25 will spread outward to reset, and then the card rod 24 and the release sleeve 26 are rotated in the corresponding direction by the handle 30, so that the card rod 24 drives the spring piece 25 to rotate, and then the outer side of the spring piece 25 is engaged with the thread groove 28, and the external thread at the edge of the spring piece 25 is tightly matched with the thread groove 28, thereby achieving the fixation of the fixed plate 4, and then achieving the rapid installation of the first shell 2 and the second shell 3.

[0044] In summary, when the overall device is in use or running: when it is necessary to connect the wire to the transformer, first rotate the adapter sleeve 7 so that the adapter sleeve 7 moves along the thread on the outside of the harness sleeve 5, and then the outside of the adapter rod 12 loses the limit of the adapter sleeve 7, and then rotate the rotating sleeve 6, and the rotating sleeve 6 drives the adapter rod 12 to move. Due to the rounded structure design at the end of the adapter rod 12 and the edge of the adapter groove 11, the side wall of the adapter groove 11 squeezes one end of the adapter rod 12, so that one end of the adapter rod 12 slides out of the adapter groove 11, and then the adapter The other end of the rod 12 drives the connecting spring 13 to stretch. At the same time, since the inner wall of the rotating sleeve 6 and the outer wall of the connecting sleeve 14 are movably connected through threads, and the straight groove 8 limits the translation frame 10 and the connecting sleeve 14, the connecting sleeve 14 and the translation frame 10 will not rotate. Then the connecting sleeve 14 will drive the translation frame 10 to slide along the straight groove 8, and then the translation frame 10 will drive the slider 9 to move through the cooperation of the connecting groove 22 and the connecting block 21, and then the slider 9 will drive the slide plate 19 to slide along the slide groove 20. Since the slide plate 19 And the inclined structure design of the slide 20, then the slide 19 drives the slider 9 to spread outward while sliding along the slide 20, and then the slider 9 will drive the connecting block 21 to slide along the connecting groove 22, and then the slider 9 will drive the push plate 18 to spread outward through the push spring 17, and then pass one end of the wire through the inside of the harness sleeve 5 to connect with the mutual inductor, and then rotate the rotating sleeve 6 in the opposite direction, and the rotating sleeve 6 will drive the translation frame 10 to slide and reset along the straight groove 8 by cooperating with the connecting sleeve 14, and then the translation frame 10 will push the slider 9 is reset, and then the slider 9 will drive the slider 19 to slide and reset along the slide groove 20, and then the slider 19 will drive the slider 9 to gather inward and reset, and then the slider 9 will drive the connecting block 21 to reset along the connecting groove 22, and then the slider 9 will drive the push spring 17 and the push plate 18 to gather inward and reset, and then the inner side of the push plate 18 will contact the outer side of the wire, and then the slider 9 will squeeze the push spring 17, and then the slider 9 will clamp the wire through the push spring 17 and the push plate 18, thereby achieving a stable connection with the wire.

[0045] When the protective device needs to be installed on the outside of the transformer, first put the first shell 2 on one side of the transformer, then pass the wires through the wire harness 5 to connect with the transformer, then install the sealing strip 16 on one side of the clamping block 15 set on one side of the first shell 2, then install the second shell 3 on one side of the first shell 2, and make the second shell 3 put on the other side of the transformer, then the clamping block 15 set on one side of the second shell 3 will cooperate with the clamping block 15 set on one side of the first shell 2 to clamp the sealing strip 16, ensuring the sealing of the connection between the first shell 2 and the second shell 3, then place the clamping sleeve 23 on one side of the fixed plate 4 set on the outside of the second shell 3, then press against one end of the clamping rod 24, and then pull the handle 30, the handle 30 will drive the release sleeve 26 to slide, and then the release sleeve 26 will drive the release slot 27 to move, and at the same time the release sleeve 26 will squeeze the return spring 29 set on one side, and then release The side walls of the groove 27 will squeeze the outer side of the spring piece 25, causing the spring piece 25 to gather inward, and then the release sleeve 26 and the card rod 24 will pass through the fixed plate 4 connected to the outside of the first shell 2 and enter the card sleeve 23. When the card rod 24 is inserted into the card sleeve 23, the handle 30 is released, and then the return spring 29 will push the release sleeve 26 to reset, and then the release sleeve 26 will drive the release groove 27 to reset, and then the outer side of the spring piece 25 loses the limit of the side wall of the release groove 27, and then the spring piece 25 will spread outward to reset, and then the card rod 24 and the release sleeve 26 are rotated in the corresponding direction by the handle 30, so that the card rod 24 drives the spring piece 25 to rotate, and then the outer side of the spring piece 25 is engaged with the thread groove 28, and the external thread at the edge of the spring piece 25 is tightly matched with the thread groove 28, thereby achieving the fixation of the fixed plate 4, and then achieving the rapid installation of the first shell 2 and the second shell 3.

[0046] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A current transformer protection device, comprising a mounting frame (1), characterized in that: A protective device is installed on the mounting frame (1), and the protective device includes a first shell (2), a second shell (3) and a fixing plate (4). The first shell (2) and the second shell (3) are respectively connected to one side of the mounting frame (1). The fixing plate (4) is respectively connected to both sides of the first shell (2) and the second shell (3). A quick release device is provided on the outside of the fixing plate (4). A wire clamping device is provided on one side of the first shell (2). The wire clamping device includes a wire harness sleeve (5), a rotating sleeve (6), an adaptor sleeve (7), a straight slot (8), A slider (9), a translation frame (10), an adapting groove (11), an adapting rod (12), a connecting spring (13) and a connecting sleeve (14); the inner wall of the rotating sleeve (6) is connected to the outer wall of the connecting sleeve (14) through a thread; a straight groove (8) is provided on the side wall of the cable harness sleeve (5); the slider (9) is provided in the cable harness sleeve (5); the outer side of the translation frame (10) passes through the straight groove (8) and is connected to the connecting sleeve (14); a plurality of adapting grooves (11) are provided on the side wall of the cable harness sleeve (5); one end of the adapting rod (12) is connected to the outer wall of the rotating sleeve (6) through a connecting spring (13).

2. A current transformer protection device according to claim 1, characterized in that: A compression block (15) is provided on one side of each of the first shell (2) and the second shell (3), and a sealing strip (16) is provided on one side of the compression block (15).

3. A current transformer protection device according to claim 1, characterized in that: One side of the slider (9) is connected to a push spring (17), and the other end of the push spring (17) is connected to a push plate (18).

4. A current transformer protection device according to claim 3, characterized in that: A slide plate (19) is connected to one side of the slider (9), a slide groove (20) is provided in the cable harness (5), and the slide plate (19) is slidably arranged in the slide groove (20).

5. A current transformer protection device according to claim 4, characterized in that: A connecting block (21) is connected to one side of the slider (9), a connecting groove (22) is provided on the translation frame (10), and the connecting block (21) is slidably arranged in the connecting groove (22).

6. A current transformer protection device according to any one of claims 1 to 5, characterized in that: The quick-release device comprises a clamping sleeve (23), a clamping rod (24), a spring piece (25), a release sleeve (26), a release groove (27) and a thread groove (28); the clamping sleeve (23) is detachably sleeved on the outside of the release sleeve (26); the spring piece (25) is arranged on the outside of the clamping rod (24) along a thread line; the release sleeve (26) is movably sleeved on the outside of the clamping rod (24); the release groove (27) is provided on the side wall of the release sleeve (26); and the position of the release groove (27) corresponds to the position of the spring piece (25); and the thread groove (28) is provided on the inside of the clamping sleeve (23).

7. A current transformer protection device according to claim 6, characterized in that: One end of the clamping rod (24) is connected with a return spring (29).

8. A current transformer protection device according to claim 7, characterized in that: One end of the release sleeve (26) is connected to a handle (30).

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