CN213958745U - Built-in current transformer - Google Patents
Built-in current transformer Download PDFInfo
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- CN213958745U CN213958745U CN202022661507.5U CN202022661507U CN213958745U CN 213958745 U CN213958745 U CN 213958745U CN 202022661507 U CN202022661507 U CN 202022661507U CN 213958745 U CN213958745 U CN 213958745U
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- current transformer
- electrode cylinder
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Abstract
The utility model discloses a built-in current transformer, including the electrode barrel, install in a plurality of CT coils of electrode barrel periphery, general the electrode barrel solidifies integrative epoxy with the CT coil, install in the outer taut strip of CT coil, built-in current transformer still have can dismantle connect in the last electrode cap of electrode barrel top, go up the electrode cap with the insulating ring is still installed to the electrode barrel. The upper electrode cap is detachably connected with the electrode cylinder body, so that the later-period equipment is convenient to maintain.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a send the transformer field, especially relate to a built-in current transformer.
[ background of the invention ]
In the prior art, an electrode cap is arranged above an electrode cylinder of a built-in current transformer, and a metal ring is embedded in the electrode cap to limit the electrode cylinder. The electrode cap is arranged on the electrode barrel and then integrally cast by epoxy resin, and the electrode cap, the metal ring, the electrode barrel and the coil are solidified into a whole, so that the built-in current transformer cannot be disassembled after casting, and obstacles are brought to later maintenance and rework of products.
Accordingly, there is a need in the art to provide an improved internal current transformer.
[ Utility model ] content
The utility model is directed to the above problem, a built-in current transformer is provided, avoids the potential transformer sleeve pipe to bring the potential safety hazard because of the potential suspension.
In order to solve the problem, the utility model provides a pair of built-in current transformer, including the electrode barrel, install in a plurality of CT coils of electrode barrel periphery, general the electrode barrel solidifies integrative epoxy with the CT coil, install in the outer taut strip of CT coil, built-in current transformer still have can dismantle connect in the last electrode cap of electrode barrel top, go up the electrode cap with the insulating ring is still installed to the electrode barrel.
Furthermore, the tensioning bars are uniformly distributed on the outer side of the CT coil.
Further, the tensioning bar is connected between the electrode cylinder and the upper electrode cap.
Further, the number of the fastening strips is at least 2.
Furthermore, the built-in current transformer is also provided with CT sealing rings which are arranged between the bottom of the electrode cylinder and the CT coils and between adjacent CT coils.
Furthermore, the utility model provides a built-in current transformer, electrode barrel and last electrode cap are two detached structures, provide convenience for the maintenance in later stage, have also avoided the potential suspension potential safety hazard of bringing.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the built-in current transformer of the present invention.
[ detailed description ] embodiments
The directional terms used in the present invention include, for example, up, down, front, rear,
The terms "left", "right", "inner", "outer", "side", and the like are merely used for explaining and explaining the present invention, and are not used for limiting the scope of the present invention.
Referring to fig. 1, a schematic structural diagram of the built-in current transformer of the present invention is shown.
The built-in Current transformer comprises an electrode cylinder 8, a CT (Current transformer) coil 4 fixed on the periphery of the electrode cylinder 8 and an upper electrode cap 1 arranged above the electrode cylinder 8. An insulating ring 6 is arranged between the electrode cylinder 8 and the upper electrode cap 1, the insulating ring 6 limits the electrode cylinder 8, and the electrode cylinder 8 and the electrode cap 1 are insulated and separated.
A plurality of threaded holes 9 are uniformly processed on the peripheries of the upper electrode cap 1 and the electrode cylinder 8, a plurality of tensioning strips 3 are used for tensioning the upper electrode cap 1 and the electrode cylinder 8, and the upper electrode cap 1 and the electrode cylinder 8 are installed together through a fastening piece 2. A plurality of tensioning strips 3 are evenly distributed on the periphery of the CT coil. The upper end of the upper electrode cap 1 and the lower end of the electrode cylinder 8 are provided with a second threaded hole 10 for connecting with an external structure.
The built-in current transformer further has CT sealing rings 5, and the CT sealing rings 5 are located between the bottom of the electrode cylinder 8 and the CT coils 4 and between adjacent CT coils 4 (not shown). Before epoxy resin is poured, the CT coil 4 is sleeved on the periphery of the electrode cylinder 8, then the CT sealing rings 5 are arranged between the bottom of the electrode cylinder 8 and the CT coil 4 and between adjacent CT coils, finally epoxy resin 7 is poured, and the CT coil 4 and the electrode cylinder 8 are solidified into a whole. Since the outer periphery of the electrode cylinder is open, a CT seal ring needs to be installed to prevent the epoxy resin from flowing out. After the pouring is finished, the insulating ring 6 is clamped into the periphery of the upper end of the electrode cylinder 8, and then the upper electrode cap 1 is sleeved on the periphery of the insulating ring 6. And finally, connecting the tensioning strip 3 between the bottom of the electrode cylinder 8 and the upper electrode cap 1.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A built-in current transformer comprises an electrode cylinder (8), a plurality of CT coils (4) arranged on the periphery of the electrode cylinder (8), epoxy resin for curing the electrode cylinder (8) and the CT coils (4) into a whole, and a tensioning strip (3) arranged outside the CT coils, and is characterized in that the built-in current transformer also comprises an upper electrode cap (1) detachably connected above the electrode cylinder (8), and insulating rings (6) are further arranged on the upper electrode cap (1) and the electrode cylinder (8).
2. The built-in current transformer according to claim 1, characterized in that the tension bars (3) are evenly distributed on the outside of the CT coil.
3. The built-in current transformer according to claim 1, characterized in that the tension bar (3) is connected between the electrode cylinder and the upper electrode cap (1).
4. The built-in current transformer according to claim 1, characterized in that the number of said tension bars is at least 2.
5. The built-in current transformer according to claim 1, characterized in that it further has a CT seal ring (5) installed between the bottom of the electrode cylinder (8) and the CT coil (4) and between adjacent CT coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022661507.5U CN213958745U (en) | 2020-11-17 | 2020-11-17 | Built-in current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022661507.5U CN213958745U (en) | 2020-11-17 | 2020-11-17 | Built-in current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213958745U true CN213958745U (en) | 2021-08-13 |
Family
ID=77209483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022661507.5U Active CN213958745U (en) | 2020-11-17 | 2020-11-17 | Built-in current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213958745U (en) |
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2020
- 2020-11-17 CN CN202022661507.5U patent/CN213958745U/en active Active
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