Electronic current transformer

Abstract

The utility model provides an electronic current transformer, which belongs to the technical field of current transformers and comprises a current transformer main body, wire locking pieces are symmetrically attached to the edge of a threading hole of the current transformer main body, and a positioning driving component for driving the wire locking pieces to fix a wire is arranged on the side wall of the current transformer main body. The wire penetrating through the wire penetrating hole is fixed through the two wire locking pieces which move relatively, so that the position of the wire is locked, interference to the wire in the monitoring process is avoided, the accuracy of a wire monitoring result is further guaranteed, and when the current transformer body is connected, the wire can be conveniently and quickly locked. The displacement linkage assembly drives the two protective covers to move away from the two wire holders at the same time, then wiring is carried out, then the outer portions of the wire holders are protected through the protective covers, therefore, the wire holders are prevented from being disconnected with leads, in the operation process, the protective covers can also be prevented from making contact with the wire holders, and then the safety of the operation process is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, specifically to an electronic current transformer. Background Technology

[0002] A current transformer is an instrument that uses the principle of electromagnetic induction to convert a large primary current into a small secondary current for measurement. A current transformer consists of a closed iron core and windings. Its primary winding has very few turns and is connected in series with the circuit whose current needs to be measured; therefore, it often carries the entire current of the circuit. The secondary winding has more turns and is connected in series with the measuring instrument and protection circuit. When the current transformer is operating, its secondary circuit is always closed. Therefore, the impedance of the series coils in the measuring instrument and protection circuit is very small, and the operating state of the current transformer is close to a short circuit. Since the current transformer converts a large primary current into a small secondary current for measurement, the secondary side must not be open-circuited.

[0003] A related technology (publication number: CN220895331U) discloses an electronic current transformer. The disclosed technical solution involves the cooperation between the housing, the snap-fit ​​mechanism, and the transformer body. The transformer body is inserted into the mounting groove on the upper surface of the housing. Rotating the handwheel drives the worm gear, which in turn drives the worm wheel on the bidirectional screw. This causes the bidirectional screw to be threadedly connected to two sets of movable plates, bringing the two sets of movable plates closer together. The limiting blocks on the movable plates engage with the limiting holes on the transformer body base, thus positioning the transformer body. Reversing the handwheel allows for disassembly of the transformer body, improving the efficiency of current transformer assembly and disassembly, thereby increasing the maintenance efficiency for current transformers.

[0004] The above-disclosed technical solutions reveal the following problems: during the monitoring of conductor current, the conductor needs to pass through the through-hole of the current transformer. In this process, due to the limited space of the current transformer, if the conductor length cannot be adapted, the position of the conductor will be unstable, which will affect the effect of conductor current monitoring. To address this, we propose a new type of electronic current transformer.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background section of this application, and therefore may include prior art information that does not constitute prior art information known to those skilled in the art. Utility Model Content

[0006] This utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To address the issue of unstable current transformer conductor monitoring in the prior art, this utility model provides an electronic current transformer that combines a conductor stability monitoring structure with a joint protection structure to improve current stability monitoring. Its specific technical solution is as follows:

[0007] An electronic current transformer includes a current transformer body. A locking member is symmetrically fitted along the edge of the wire-passing hole of the current transformer body. A positioning drive component is provided on the side wall of the current transformer body to drive the locking member to fix the wire. A protective cover is fitted around the terminal block of the current transformer body. A clearance groove is provided at the bottom edge of the protective cover. A displacement linkage component is provided on the side wall of the current transformer body to control the opening and closing of the protective cover.

[0008] In the above technical solution, the displacement linkage component includes a threaded post fixed to the bottom side wall of the current transformer body, a drive sleeve connected to the external thread of the threaded post, a displacement seat rotatably disposed on the top of the drive sleeve, and the displacement seat connected to the protective cover through a guide member.

[0009] The guiding component includes a guide frame fixed to the side wall of the current transformer body. A first guide post and a second guide post are embedded in the guide frame. A first linkage seat is sleeved on the outside of the first guide post, and a second linkage seat is sleeved on the outside of the second guide post. The first linkage seat is connected to the second linkage seat via a linkage rod. The first linkage seat is connected to the protective cover, and the second linkage seat is connected to the displacement seat.

[0010] The positioning drive component includes a lead screw rotatably mounted on the side wall of the current transformer body, and a locking seat is symmetrically threaded to the outside of the lead screw, the locking seat being connected to the locking wire component.

[0011] One side of the current transformer body is provided with a linkage component for synchronous displacement of the locking wires on both sides.

[0012] The linkage assembly includes an extension shaft fixed to the end of the lead screw, a transmission component sleeved on the outside of the extension shaft, and a linkage component sleeved on the outside of the two transmission components.

[0013] A guide rod parallel to the lead screw is provided on the side wall of the current transformer body. An anti-deviation seat is sleeved on the outside of the guide rod, and the anti-deviation seat is connected to the locking component.

[0014] A mounting bracket is provided at the bottom of the current transformer body.

[0015] The bottom of the fixed frame is slidably equipped with a displacement frame for adjusting the position of the current transformer body.

[0016] The displacement frame includes a threaded positioning post fixed to the bottom of the fixed frame. The positioning frame is slidably disposed on the bottom of the fixed frame. A groove is opened at the bottom of the positioning frame. The threaded positioning post passes through the inner cavity of the groove. A positioning seat is threadedly connected to the outside of the threaded positioning post.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This electronic current transformer:

[0018] 1. When monitoring the current of a conductor, the locking components on both sides of the wire hole of the current transformer body are moved by the positioning drive component. This causes the locking components on both sides to move relative to each other. The two locking components that move relative to each other fix the conductor passing through the wire hole, thereby locking the position of the conductor and avoiding interference with the conductor during the monitoring process, thus ensuring the accuracy of the conductor monitoring results.

[0019] Second, when wiring the main body of the current transformer, the displacement linkage component simultaneously drives the two protective covers to move away from the two terminal blocks before wiring. After that, the protective covers protect the outside of the terminal blocks, thereby preventing the terminal blocks from breaking off from the leads. The protective covers also prevent contact with the terminal blocks, thus ensuring the safety of the operation process.

[0020] 3. When wiring through the terminal block, turn the drive sleeve on the threaded post so that the displacement seat drives the two protective covers to open simultaneously in the same direction through the guide component. Then, connect the lead wire to the terminal block at the relief groove of the protective cover. After that, turn the drive sleeve again to cover the protective cover outside the terminal block and cover the relief groove outside the lead wire, thereby protecting the terminal block.

[0021] Fourth, the linkage rod enables the two first linkage seats and the second linkage seat to move synchronously. The parallel position of the two first guide posts and the second guide post ensures the stability of the two protective covers as they move with the drive sleeve, thereby ensuring the protective effect on the terminal block.

[0022] 5. The screw is rotated by the operating lever, which causes the two locking seats connected to the screw's outer wall thread to move through the first connecting rod, thereby moving the two locking components at the edges of the wire hole relative to each other. This fixes the monitored wire with the two locking components. The distance between the two locking components can be adjusted according to the wire specifications to accommodate wires of different specifications.

[0023] VI. The linkage component enables the two sets of locking wires on both sides to move relative to each other simultaneously, and the external fixation of the wires on both sides of the wire hole ensures the stability of the wire monitoring process.

[0024] 7. During the process of rotating the lead screw to move the locking component, the locking component simultaneously drives the anti-deviation seat to slide against the outer wall of the guide rod through the second connecting rod. The guide rod, which is parallel to the lead screw, ensures the stability of the movement of both ends of the locking component and avoids the locking component from deviating from its position, thereby ensuring the stability of the wire monitoring process.

[0025] 8. After the displacement frame is fixed, the current transformer body can be moved on the displacement frame by the fixed frame, which can adjust the position of the current transformer body after it is fixed, increase the operating space, and thus bring convenience to the operation process of relevant personnel. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an electronic current transformer according to the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of an electronic current transformer according to the present invention. Figure 2 ;

[0028] Figure 3 This is a schematic diagram of the structure of an electronic current transformer according to the present invention. Figure 3 ;

[0029] Figure 4 This is an exploded view of the structure of an electronic current transformer according to this utility model. Figure 1 ;

[0030] Figure 5 This is an exploded view of the structure of an electronic current transformer according to this utility model. Figure 2 ;

[0031] in, Figures 1 to 5 The correspondence between the reference numerals and component names in the attached drawings is as follows: 1-Current transformer body, 2-Wire locking component, 3-Fixing frame, 4-Protective cover, 5-Guide frame, 6-Positioning frame, 7-Drive sleeve, 8-Lead screw, 9-Guide rod, 10-Transmission component, 11-Linkage component, 12-Locking seat, 13-Anti-deviation seat, 14-Second frame, 15-Second connecting rod, 16-Extension shaft, 17-First connecting rod, 18-First frame, 19-Displacement seat, 20-Operating lever, 21-Threaded column, 22-Slide groove, 23-Threaded positioning column, 24-Positioning seat, 25-Spherical body, 26-First linkage seat, 27-Relief groove, 28-First guide column, 29-Second guide column, 30-Fixing rod, 31-Second linkage seat, 33-L-shaped connecting rod, 34-First through groove, 35-Second through groove, 37-Linkage rod, 38-Support rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The following are specific implementation cases and appendices. Figure 1-5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0034] An electronic current transformer includes a current transformer body 1. Wire locking components 2 are symmetrically fitted along the edges of the wire-passing hole on the current transformer body 1. A positioning drive component is provided on the side wall of the current transformer body 1 to drive the wire locking components 2 to fix the conductor. A wire-passing hole for the conductor to pass through is provided at the center of the current transformer body 1. When monitoring the current of the conductor, the current transformer body 1 is placed over the conductor through the wire-passing hole, and the current of the conductor is then monitored through the current transformer body 1. During this process, the positioning drive component drives the wire locking components 2 on both sides of the wire-passing hole of the current transformer body 1 to move, causing the two wire locking components 2 to move relative to each other. The relative movement of the two wire locking components 2 fixes the conductor passing through the wire-passing hole, thereby locking the position of the conductor, avoiding interference with the conductor during monitoring, and ensuring the accuracy of the conductor monitoring results.

[0035] A protective cover 4 is fitted over the terminal block of the current transformer body 1. A clearance groove 27 is provided along the bottom edge of the protective cover 4. A displacement linkage component for controlling the opening and closing of the protective cover 4 is provided on the side wall of the current transformer body 1. Two terminal blocks are installed on the current transformer body 1, and two protective covers 4 are respectively placed over the two terminal blocks. The displacement linkage component allows the two protective covers 4 to move up and down simultaneously outside the terminal blocks.

[0036] When wiring the current transformer body 1, the displacement linkage component simultaneously moves the two protective covers 4 away from the two terminal blocks before wiring. Afterwards, the protective covers 4 are moved outside the terminal blocks, and the leads are led out through the clearance groove 27. The protective covers 4 protect the outside of the terminal blocks, thus preventing the terminal blocks from disconnecting from the leads. During operation, the protective covers 4 also prevent contact with the terminal blocks, thereby ensuring operational safety.

[0037] The displacement linkage assembly includes a threaded post 21 fixed to the bottom side wall of the current transformer body 1, with a drive sleeve 7 connected to the external thread of the threaded post 21. The threaded post 21 is vertically fixed at the center position between the two terminals, and the drive sleeve 7 is connected to the threaded post 21 through a threaded hole at its bottom. A displacement seat 19 is rotatably mounted on the top of the drive sleeve 7, and the displacement seat 19 is connected to the protective cover 4 through a guide member. One end of a support rod 38 is vertically fixed on the top of the drive sleeve 7, and the other end of the support rod 38 is vertically fixed to the outer wall of the spherical body 25.

[0038] The displacement seat 19 is a sphere larger than half its diameter. A spherical cavity is formed on the surface of the displacement seat 19, allowing it to movably fit around the outside of the sphere 25, enabling free rotation of the displacement seat 19 outside the sphere 25. The larger-than-half displacement seat 19 prevents the sphere 25 from detaching from its interior. Guide members ensure that the protective cover 4 does not shift in the direction of movement.

[0039] When wiring through the terminal block, the drive sleeve 7 is screwed onto the threaded post 21, causing the drive sleeve 7 to rotate and move the top spherical body 25. This spherical body 25 then pushes the displacement seat 19, causing the displacement seat 19 to guide the two protective covers 4 to open simultaneously in the same direction. The lead wire is then connected to the terminal block at the relief groove 27 of the protective cover 4. Afterwards, the drive sleeve 7 is rotated again to cover the protective cover 4 over the terminal block and the relief groove 27 over the lead wire, thus protecting the terminal block.

[0040] It is worth noting that the guiding component includes a guide frame 5 fixed to the side wall of the current transformer body 1. The guide frame 5 is vertically fixed to the surface of the current transformer body 1 and located above the protective cover 4. A first guide post 28 and a second guide post 29 are embedded in the guide frame 5. Two first through slots 34 and one second through slot 35 are formed on the surface of the guide frame 5, and the two first through slots 34 and the second through slot 35 are parallel to each other. The two first guide posts 28 are fixedly embedded inside the two first through slots 34, and the second guide post 29 is fixedly embedded inside the second through slot 35, making the two first guide posts 28 and the second guide post 29 parallel to each other.

[0041] A first linkage seat 26 is sleeved on the outside of the first guide post 28, and a second linkage seat 31 is sleeved on the outside of the second guide post 29. The first linkage seat 26 is connected to the second linkage seat 31 via a linkage rod 37. The first linkage seat 26 is connected to the protective cover 4, and the second linkage seat 31 is connected to the displacement seat 19. To prevent interference during operation, the second linkage seat 31 and the displacement seat 19 are fixedly connected via an L-shaped connecting rod 33, and the first linkage seat 26 is fixedly connected to each other via a fixing rod 30.

[0042] Two first linkage seats 26 are movably sleeved on the outside of two first guide posts 28 through through holes opened longitudinally through the inner cavity. A second linkage seat 31 is movably sleeved on the outside of a second guide post 29 through through holes opened longitudinally through the inner cavity. Three support rods are fixedly installed on the linkage rod 37, and the three support rods are fixedly connected to the two first linkage seats 26 and the second linkage seat 31 respectively.

[0043] The linkage rod 37 enables the two first linkage seats 26 and the second linkage seat 31 to move synchronously. The parallel position of the two first guide posts 28 and the second guide post 29 ensures the stability of the two protective covers 4 as they move with the drive sleeve 7, thus ensuring the protective effect on the terminal block.

[0044] Furthermore, the positioning drive component includes a lead screw 8 rotatably mounted on the side wall of the current transformer body 1. A locking seat 12 is symmetrically threaded onto the outside of the lead screw 8, and the locking seat 12 is connected to the locking wire member 2. Two first frames 18 are fixedly mounted on the surface of the current transformer body 1 on the same side. Bearings are embedded in the inner walls of the upper and lower sides of each first frame 18, and the two ends of the two lead screws 8 are respectively embedded in the bearings on the inner walls of the two first frames 18, making the two lead screws 8 on the same side parallel to each other.

[0045] Two sets of opposite external threads with the same pitch are symmetrically formed on the outer wall of the lead screw 8, extending from the center outwards. Two locking seats 12 are connected to the two sets of external threads of the lead screw 8 via threaded through-holes penetrating the inner cavity. One end of a first connecting rod 17 is fixedly mounted on the outer wall of the locking seat 12, and the other end of the first connecting rod 17 is fixed to the end of the locking wire member 2. An operating rod 20 is fixedly connected to the bottom end of one of the lead screws 8, and the operating rod 20 passes through the bottom of one of the first frames 18 and is fixedly connected to one end of the lead screw 8.

[0046] The operating lever 20 drives the lead screw 8 to rotate, causing the two locking seats 12 connected to the outer wall of the lead screw 8 to move through the first connecting rod 17, thereby moving the two locking components 2 at the edges of the wire hole relative to each other. This fixes the monitored wire with the two locking components 2. The distance between the two locking components 2 can be adjusted according to the specifications of the wire, thus making it suitable for fixing wires of different specifications.

[0047] In addition, a linkage assembly is provided on one side of the current transformer body 1 for synchronous displacement of the locking components 2 on both sides. The linkage assembly enables the two sets of locking components 2 on both sides to move relative to each other simultaneously, and by fixing the wires on both sides of the wire hole externally, the stability of the wire monitoring process is ensured.

[0048] Furthermore, the linkage assembly includes an extension shaft 16 fixedly connected to the end of the lead screw 8. A transmission component 10 is sleeved on the outside of the extension shaft 16, and a linkage component 11 is sleeved on the outside of the two transmission components 10. The two extension shafts 16 respectively pass through the top of the two first frames 18 and extend to the inner cavity, where they are fixedly connected to the ends of the lead screws 8, so that the two extension shafts 16 respectively drive the two lead screws 8 to rotate. The two transmission components 10 can be transmission wheels, and the linkage component 11 can be a transmission belt. Alternatively, the two transmission components 10 can be sprockets, and the corresponding linkage component 11 can be a chain. The two transmission components 10 are fixedly sleeved on the outside of the two extension shafts 16 through mounting holes opened in the center, and the linkage component 11 is simultaneously sleeved on the outside of the two transmission components 10.

[0049] When locking the conductor passing through the current transformer body 1, rotating the operating lever 20 causes the corresponding lead screw 8 to rotate, which in turn drives the corresponding transmission component 10 to rotate via the extension shaft 16. The linkage 11 causes another transmission component 10 to rotate, which in turn drives the extension shaft 16 on the other side, causing the two sets of locking components 2 on both sides to move synchronously. This synchronous movement of the two sets of locking components 2 on both sides ensures the stability of the conductor, thereby guaranteeing the accuracy of the conductor current monitoring results.

[0050] A guide rod 9, parallel to the lead screw 8, is provided on the side wall of the current transformer body 1. An anti-deviation seat 13 is sleeved on the outside of the guide rod 9, and the anti-deviation seat 13 is connected to the locking member 2. A second frame 14 is fixedly installed on the other side surface of the current transformer body 1 away from the lead screw 8. The two ends of the guide rod 9 are respectively fixed vertically to the inner walls of the upper and lower sides of the second frame 14. The anti-deviation seat 13 is movably sleeved on the outside of the guide rod 9 through a through hole that extends longitudinally through the inner cavity. One end of the second connecting rod 15 is fixedly installed vertically on the outer wall of the anti-deviation seat 13, and the other end of the second connecting rod 15 is fixedly connected to the end of the locking member 2 away from the first connecting rod 17.

[0051] As the lead screw 8 rotates to move the locking component 2, the locking component 2 simultaneously drives the anti-deviation seat 13 to slide against the outer wall of the guide rod 9 via the second connecting rod 15. The guide rod 9, which is parallel to the lead screw 8, ensures the stability of the movement of both ends of the locking component 2, preventing the locking component 2 from deviating from its position, thereby ensuring the stability of the wire monitoring process.

[0052] A mounting bracket 3 is provided at the bottom of the current transformer body 1. The mounting bracket 3 is fixedly attached to the bottom of the current transformer body 1. Two mounting holes are symmetrically opened on the surface of the mounting bracket 3, which allow the current transformer body 1 to be fixed in the horizontal direction. This makes the installation process of the current transformer body 1 more convenient.

[0053] A displacement frame for adjusting the position of the current transformer body 1 is slidably mounted on the bottom of the fixing frame 3. The current transformer body 1 moves along the displacement frame with the fixing frame 3. After the displacement frame is fixed, the current transformer body 1 can be moved along the displacement frame by the fixing frame 3, thereby adjusting the fixed position of the current transformer body 1, increasing the operating space, and thus bringing convenience to the operation process of relevant personnel.

[0054] The displacement frame includes a threaded positioning post 23 fixed to the bottom of the fixed frame 3. A positioning frame 6 is slidably mounted on the bottom of the fixed frame 3, and a groove 22 is formed on the bottom of the positioning frame 6. The threaded positioning post 23 passes through the inner cavity of the groove 22, and a positioning seat 24 is threadedly connected to the outside of the threaded positioning post 23. Two threaded positioning posts 23 are vertically fixed to the bottom of the fixed frame 3 in parallel. A groove 22 is formed on the surface of the positioning frame 6, passing through the inner cavity. The positioning frame 6 is fitted onto the outside of the threaded positioning post 23 through the groove 22. The positioning frame 6 is an L-shaped frame with a mounting hole that passes through the inner cavity in the vertical direction, allowing the positioning frame 6 to be installed on the vertical plane.

[0055] During the adjustment of the position of the current transformer body 1 via the fixing frame 3, the positioning seat 24 is screwed on the outside of the threaded positioning post 23, loosening the connection between the fixing frame 3 and the positioning frame 6. Then, the threaded positioning post 23 slides within the groove 22 on the positioning frame 6, causing the threaded positioning post 23 to move the current transformer body 1 via the fixing frame 3. Afterwards, the positioning seat 24 is screwed on the threaded positioning post 23 to lock the position of the current transformer body 1. Adjustments are made according to the operating space where the conductor current monitoring is located, thus facilitating the operation for relevant personnel.

[0056] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0057] Furthermore, the terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0058] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic current transformer, comprising a current transformer body (1), characterized in that: The current transformer body (1) has symmetrically fitted locking wires (2) along the edge of the wire hole. The side wall of the current transformer body (1) is provided with a positioning drive component that drives the locking wires (2) to lock the wires. The terminal block of the current transformer body (1) is covered with a protective cover (4). The bottom edge of the protective cover (4) is provided with a clearance groove (27). The side wall of the current transformer body (1) is provided with a displacement linkage component that controls the opening and closing of the protective cover (4).

2. An electronic current transformer according to claim 1, characterized in that: The displacement linkage assembly includes a threaded post (21) fixed to the bottom side wall of the current transformer body (1). The threaded post (21) is externally threaded with a drive sleeve (7). A displacement seat (19) is rotatably provided on the top of the drive sleeve (7), and the displacement seat (19) is connected to the protective cover (4) through a guide member.

3. An electronic current transformer according to claim 2, characterized in that: The guiding component includes a guide frame (5) fixed to the side wall of the current transformer body (1). A first guide post (28) and a second guide post (29) are embedded in the guide frame (5). A first linkage seat (26) is sleeved on the outside of the first guide post (28), and a second linkage seat (31) is sleeved on the outside of the second guide post (29). The first linkage seat (26) is connected to the second linkage seat (31) through a linkage rod (37). The first linkage seat (26) is connected to the protective cover (4), and the second linkage seat (31) is connected to the displacement seat (19).

4. An electronic current transformer according to claim 1, characterized in that: The positioning drive component includes a lead screw (8) rotatably mounted on the side wall of the current transformer body (1), and a locking seat (12) is symmetrically threaded on the outside of the lead screw (8), and the locking seat (12) is connected to the locking wire component (2).

5. An electronic current transformer according to claim 4, characterized in that: One side of the current transformer body (1) is provided with a linkage component for synchronous displacement of the locking wires (2) on both sides.

6. An electronic current transformer according to claim 5, characterized in that: The linkage assembly includes an extension shaft (16) fixed to the end of the lead screw (8), a transmission member (10) is sleeved on the outside of the extension shaft (16), and a linkage member (11) is sleeved on the outside of the two transmission members (10).

7. An electronic current transformer according to claim 4, characterized in that: The current transformer body (1) has a guide rod (9) parallel to the lead screw (8) on its side wall. An anti-deviation seat (13) is sleeved on the outside of the guide rod (9). The anti-deviation seat (13) is connected to the locking wire (2).

8. An electronic current transformer according to claim 1, characterized in that: The bottom of the current transformer body (1) is provided with a fixing frame (3).

9. An electronic current transformer according to claim 8, characterized in that: The bottom of the fixed frame (3) is slidably provided with a displacement frame for adjusting the position of the current transformer body (1).

10. An electronic current transformer according to claim 9, characterized in that: The displacement frame includes a threaded positioning post (23) fixed to the bottom of the fixed frame (3). A positioning frame (6) is slidably disposed on the bottom of the fixed frame (3). A groove (22) is opened at the bottom of the positioning frame (6). The threaded positioning post (23) passes through the inner cavity of the groove (22). A positioning seat (24) is threadedly connected to the outside of the threaded positioning post (23).

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