Current transformer installation structure

By integrating the fixed plate and the current transformer into a pre-installed structure and using bolts to fasten the suspended mounting plate and bracket, the problem of complex installation and insufficient reliability of traditional current transformers is solved, achieving a fast and stable installation effect.

CN224232480UActive Publication Date: 2026-05-12SHANGHAI QIANGU POWER TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI QIANGU POWER TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional current transformer installation methods lack modular design, resulting in complex on-site installation, low efficiency, insufficient reliability, and potential safety hazards.

Method used

The system adopts an integrated pre-installed structure for the fixed plate and current transformer, combined with the bolt fastening method of the suspended mounting plate and bracket. It achieves quick and accurate installation through hooks and bracket square holes, and ensures stability through multi-point connections.

Benefits of technology

Significantly shortens the construction cycle, improves installation efficiency and precision, ensures equipment stability, prevents loosening or falling off, enhances safety, and adapts to different equipment specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of current transformers, and provides a current transformer installation structure which comprises a plurality of fixing plates, one or more rows of installation holes are formed in each fixing plate, hooks are arranged on the two sides of the front portion of each fixing plate, a suspension type installation plate is arranged at the top end of the front portion of each fixing plate, and a long-strip-shaped through hole is formed in each suspension type installation plate. A plurality of square holes are formed in the mounting bracket, an extension plate matched with the suspension type mounting plate is arranged at the top of the mounting bracket, and a rivet nut is arranged on the extension plate; each fixing plate and one current transformer are connected into a whole through a mounting hole and a screw, a hook of the fixing plate is hung on the lower edge of a square hole of the mounting support, a long-strip-shaped through hole of the suspension type mounting plate is located above a rivet nut of an extension plate of the mounting support, and a bolt penetrates through the long-strip-shaped through hole and then is in threaded connection with the rivet nut. The construction period can be greatly shortened, the installation process is rapid and accurate, the multiple rows of installation holes are combined, and equipment of different specifications can be compatible while the installation precision is ensured.
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Description

Technical Field

[0001] This application relates to the field of current transformer technology, and specifically to a current transformer mounting structure. Background Technology

[0002] Traditional current transformer installation methods lack modular design, resulting in on-site installation relying on a large number of tools and complex operations, long construction cycles and low efficiency, and insufficient reliability of the mounting structure, which can easily cause the equipment to fall off due to vibration or external force, posing safety hazards. Utility Model Content

[0003] To help solve the above-mentioned technical problems, this application provides a current transformer mounting structure, which adopts the following technical solution:

[0004] A current transformer mounting structure, comprising:

[0005] Several fixing plates are provided with one or more rows of mounting holes, hooks are provided on both sides of the front part, and a hanging mounting plate is provided at the top of the front part, with long strip-shaped through holes opened on the hanging mounting plate.

[0006] A mounting bracket has several square holes, and the top of the mounting bracket has an extension plate that mates with a hanging mounting plate. The extension plate has rivet nuts.

[0007] Each mounting plate is connected to a current transformer as a whole through mounting holes and screws. The hooks of the mounting plates are hung on the lower edge of the square holes of the mounting bracket. The elongated through holes of the suspended mounting plates are located above the rivet nuts of the extension plates of the mounting brackets. The bolts pass through the elongated through holes and are threadedly connected to the rivet nuts.

[0008] Preferably, the main body of the fixing plate is a frame structure with an open front, the back plate has one or more rows of mounting holes, and the lower part of the side plates has hooks.

[0009] Preferably, the mounting bracket has wing plates on both sides, and the mounting bracket is connected to the high-voltage switchgear through mounting bracket fixing holes on the wing plates.

[0010] Preferably, the hook has a variable cross-section structure, and one end passing through the square hole is provided with an inclined surface that slopes toward the side of the current transformer fixing plate body.

[0011] In summary, this application adopts a pre-installed structure integrating the fixed plate and the current transformer, which, together with the hooks and bracket square holes, can significantly shorten the construction cycle and make the installation process quick, convenient and accurate. The bolt fastening method of the suspended mounting plate and the bracket extension plate, combined with multiple rows of mounting holes, can ensure installation accuracy while being compatible with equipment of different specifications. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of one embodiment of the fixing plate of this application;

[0013] Figure 2 This is a schematic diagram of the current transformer of this application installed on the current transformer mounting structure;

[0014] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0015] Reference numerals: 1-Elongated through hole; 2-Suspended mounting plate; 3-Back plate; 4-Mounting hole; 5-Side plate; 6-Hook; 7-Mounting bracket fixing hole; 8-Wing plate; 9-Current transformer; 10-Extension plate. Detailed Implementation

[0016] The present application will be further described below with reference to the accompanying drawings. The structure and principle of the present application are very clear to those skilled in the art. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the fixing plate of this application. Figure 2 This is a schematic diagram of the current transformer of this application installed in the current transformer mounting structure. Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] Combination Figure 1 , Figure 2 and Figure 3 It is understood that the current transformer mounting structure of this application includes several fixing plates and a mounting bracket. The fixing plates are provided with one or more rows of mounting holes 4, hooks 6 are provided on both sides of the front, and a hanging mounting plate 2 is provided at the top of the front. The hanging mounting plate 2 has an elongated through hole 1. The mounting bracket has several square holes, and the top of the mounting bracket has an extension plate 10 that mates with the hanging mounting plate 2. The extension plate 10 has a rivet nut. Each fixing plate is connected to a current transformer 9 as a whole through the mounting holes 4 and screws. The hooks 6 of the fixing plates are hung on the lower edge of the square holes of the mounting bracket. The elongated through hole 1 of the hanging mounting plate 2 is located above the rivet nut of the extension plate 10 of the mounting bracket. The bolt passes through the elongated through hole 1 and is threadedly connected to the rivet nut. The rivet nut is embedded in the extension plate 10, which is not shown in the figure.

[0019] The mounting plate and current transformer 9 can be pre-assembled into a single unit. During on-site installation, simply hang the mounting plate onto the mounting bracket and tighten the bolts to secure the suspended mounting plate 2, significantly reducing installation time. The mounting plate and mounting bracket are connected at multiple points (hook 6 for attachment and bolt tightening above) to form a stable load-bearing structure, effectively preventing the current transformer 9 from loosening or falling off during operation and ensuring the safe operation of the electrical system. This mounting structure is adaptable to current transformers 9 of different sizes and specifications; only the position and number of mounting holes 4 on the mounting plate need to be adjusted, demonstrating excellent versatility.

[0020] The main body of the mounting plate is a frame structure with an open front. The back plate 3 has one or more rows of mounting holes 4, and hooks 6 extend from the lower part of the side plates 5. The open front frame structure provides ample operating space for installation and maintenance personnel, facilitating the installation, removal, and wiring of the current transformer 9. The multiple rows of mounting holes 4 on the back plate 3 can be adjusted according to the size of the current transformer 9 and the position of the mounting holes 4, ensuring a precise connection between the mounting plate and the current transformer 9. The hooks 6 extending from the lower part of the side plates 5 can be quickly hooked onto the lower edge of the square holes in the mounting bracket, achieving rapid positioning and initial fixation of the mounting plate, improving installation efficiency.

[0021] The mounting bracket has wing plates 8 on both sides, and the mounting bracket is connected to the high-voltage switchgear through mounting bracket fixing holes 7 on the wing plates 8. The mounting bracket is firmly connected to the mounting foundation such as the high-voltage switchgear through the wing plates 8, which can resist the vibration and impact generated during the operation of the current transformer 9, ensuring the stability of the installation structure. The hook 6 has a variable cross-section structure, and the end that passes through the square hole is provided with an inclined surface that slopes towards the fixing plate body of the current transformer 9. The variable cross-section structure and inclined surface design of the hook 6 make it easier to hang the lower part of the current transformer 9 and the fixing plate as a whole on the mounting bracket. After being hung in the square hole of the mounting bracket, it can form a self-locking effect, so even if it is subjected to vibration or impact, the fixing plate will not easily fall off, improving the safety of the installation structure.

[0022] This application involves bolt fixing in two places: fixing the suspended mounting plate 2 to the mounting bracket and fixing the fixing plate to the current transformer 9. One end of the bolt used to fix the suspended mounting plate 2 is fitted with a nut, and the other end passes sequentially through a washer, a long through hole 1, and a rivet nut. The washer is located above the limiting hole. Each fixing plate is connected to a current transformer 9 as a whole through mounting holes 4. One end of the bolt is fitted with a nut, and the other end passes sequentially through a washer and mounting hole 4. The washer is located on the front side of the fixing plate.

[0023] In use, install the current transformer 9 and the fixed plate as a whole onto the mounting bracket, use the hook 6 to install it into the square hole at the bottom of the mounting bracket, then push the upper hanging mounting plate 2 onto the rivet nut, and finally fix it with bolts.

Claims

1. A current transformer mounting structure, characterized in that, include: Several fixing plates are provided with one or more rows of mounting holes, hooks are provided on both sides of the front part, and a hanging mounting plate is provided at the top of the front part, with long strip-shaped through holes opened on the hanging mounting plate. A mounting bracket has several square holes, and the top of the mounting bracket has an extension plate that mates with a hanging mounting plate. The extension plate has rivet nuts. Each mounting plate is connected to a current transformer as a whole through mounting holes and screws. The hooks of the mounting plates are hung on the lower edge of the square holes of the mounting bracket. The elongated through holes of the suspended mounting plates are located above the rivet nuts of the extension plates of the mounting brackets. The bolts pass through the elongated through holes and are threadedly connected to the rivet nuts.

2. The current transformer mounting structure according to claim 1, characterized in that, The main body of the fixing plate is a frame structure with an opening at the front, and one or more rows of mounting holes are provided on the back plate. Hooks extend from the lower part of the side plates.

3. The current transformer mounting structure according to claim 1, characterized in that, The mounting bracket has wing plates on both sides, and the mounting bracket is connected to the high-voltage switchgear through the mounting bracket fixing holes on the wing plates.

4. The current transformer mounting structure according to claim 1, characterized in that, The hook has a variable cross-section structure, and one end that passes through the square hole is provided with an inclined surface that slopes toward the side of the current transformer fixing plate body.