CN218497937U - High-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble - Google Patents
High-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble Download PDFInfo
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- CN218497937U CN218497937U CN202222800758.6U CN202222800758U CN218497937U CN 218497937 U CN218497937 U CN 218497937U CN 202222800758 U CN202222800758 U CN 202222800758U CN 218497937 U CN218497937 U CN 218497937U
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- current transformer
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Abstract
The utility model relates to the technical field of power accessories, in particular to a high-precision pulse glue impregnated paper current transformer convenient to disassemble and assemble, which comprises a connecting terminal, wherein a bracket is arranged at the top of the connecting terminal, a junction box is arranged at the back of the bracket, a dry CT is arranged at the top of the bracket and is connected with the bracket through a lead wire, a wall bushing is arranged inside the dry CT, a primary wiring row is arranged on the front side of the wall bushing, and a fixing mechanism is arranged on the front side of the dry CT and outside the wall bushing; fixed establishment is including solid fixed ring, dry-type CT's the front and be located the wall bushing's the outside and be provided with solid fixed ring, gu fixed ring's inside is provided with spacing ring and lower spacing ring, compares with current transformer, the utility model discloses a design has improved the holistic practicality of current transformer.
Description
Technical Field
The utility model relates to an electric power accessory technical field, concretely relates to high accuracy pulse glue impregnated paper current transformer convenient to dismouting.
Background
The current transformer is an instrument for converting a large primary side current into a small secondary side current to measure according to the electromagnetic induction principle, and consists of a closed iron core and a winding, wherein the primary side winding has few turns and is connected in series in a circuit of the current to be measured, so that all current of the circuit always flows through the current transformer, and the secondary side winding has more turns and is connected in series in a measuring instrument and a protection loop; when the current transformer works, a secondary side loop of the current transformer is closed all the time, so that the impedance of a series coil of a measuring instrument and a protection loop is very small, the working state of the current transformer is close to short circuit, the current transformer converts a large current on a primary side into a small current on a secondary side for measurement, the secondary side can not be opened, the current transformer can be roughly divided into two types according to different purposes, the current transformer for measurement provides current information of a power grid for devices such as measurement, metering and the like in a normal working current range, and the current transformer for protection provides power grid fault current information for devices such as relay protection and the like in a power grid fault state;
in the using process of the existing current transformer, the current transformer runs for a long time, so that the current transformer breaks down, when maintenance is needed, the current transformer is usually fixed at a certain position by using bolts, the disassembly and the assembly are complicated, a professional tool is needed, and the disassembly and the assembly also need to be carried out by a skilled professional, so that the time spent in the disassembly and the assembly is long, the maintenance is delayed, a power line cannot be adjusted and fixed, the operation is difficult, the surface of the power line is easy to wear, and unnecessary loss is caused;
by way of retrieval, application No.: 202122072501.9 discloses a current transformer, which is mainly arranged by integrally forming a current transformer body, wherein the mounting seat is provided with a mounting part, and the mounting part is used for placing a first connecting piece to connect the mounting seat and a base body. A current transformer of this structure sets up through mount pad and current transformer body integrated into one piece, can make through a mould production to improved production efficiency, and be convenient for arrange the installation department of mount pad in with first connecting piece and connect the mount pad and the base member such as cabinet-type air conditioner, meanwhile, the quantity of required first connecting piece also reduces, thereby improved production efficiency, the shortcoming lies in: it is complicated loaded down with trivial details that its dismouting is when using, needs to use professional instrument, still needs skilled professional to carry out the dismouting, and the cost time is longer during the dismouting, delays the maintenance, and the power cord can't be adjusted fixedly, and the operation is comparatively difficult, and wearing and tearing appear easily on the power cord surface, cause the unnecessary loss, consequently to current transformer's improvement, design a novel current transformer in order to change above-mentioned technical defect, improve whole current transformer's practicality, seem especially important.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high accuracy pulse glue soaks paper current transformer convenient to dismouting to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble comprises a wiring terminal, wherein a support is arranged at the top of the wiring terminal, a junction box is arranged on the back surface of the support, a dry CT is arranged at the top of the support and is connected with the support through a lead, a wall bushing is arranged inside the dry CT, a primary wiring row is arranged on the front surface of the wall bushing, and a fixing mechanism is arranged on the front surface of the dry CT and positioned on the outer side of the wall bushing;
the fixing mechanism comprises a fixing ring, the front face of the dry CT is provided with the fixing ring outside the wall bushing, the fixing ring is internally provided with an upper limiting ring and a lower limiting ring, and the upper side and the lower side of the fixing ring are provided with adjusting columns at positions corresponding to the upper limiting ring and the lower limiting ring.
As the utility model discloses preferred scheme, go up the inboard of spacing ring and lower spacing ring and be located the corresponding position department of wall bushing and all be provided with anti-skidding cushion, anti-skidding cushion is formed by the silica gel material preparation.
As the utility model discloses preferred scheme, gu fixed ring is integral type structural design with dry-type CT, gu fixed ring is threaded connection with the connected mode of two regulation posts.
As the utility model discloses preferred scheme, two adjust the post and all run through solid fixed ring and connect in last spacing ring and lower spacing ring respectively.
As the preferred scheme of the utility model, the wall bushing is made by the epoxy resin material.
As the utility model discloses preferred scheme, wall bushing's front is the inlet wire end, wall bushing's the back is the leading-out terminal.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, through fixed establishment's design, when needs take out the wall bushing, rotate two regulation posts, make go up spacing ring and lower spacing ring loosen fixed to the wall bushing, take out the wall bushing from dry CT, whole operation process is light swift, what the user can be light takes off the wall bushing, antiskid cushion has improved spacing ring simultaneously, lower spacing ring and the frictional force between the wall bushing, prevent that the wall bushing is not hard up, improve simultaneously and adjust the post and can adjust the distance between spacing ring and the lower spacing ring, make it fix the stop sleeve of different diameters.
2. In the utility model, through the design of the wall bushing, the glue impregnated paper material is adopted to make the primary insulation body, the insulation performance is excellent, the insulation body is manufactured under high vacuum, no bubble remains, no partial discharge is generated, the insulation structure is very simple, and the dangers of oil leakage, explosion and the like of the traditional oil-filled current transformer are avoided; and the defects of easy air leakage, flashover and the like of the gas transformer are avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the fixing mechanism of the present invention;
FIG. 3 is a plan elevation view of the overall structure of the present invention;
fig. 4 is a plan view of the overall structure of the present invention.
In the figure: 1. a wiring terminal; 2. a support; 3. a junction box; 4. dry CT; 5. a lead wire; 6. a wall bushing; 7. a line bank; 8. a fixing mechanism; 801. a fixing ring; 802. an upper limiting ring; 803. a lower limit ring; 804. an adjustment column; 805. an anti-slip soft cushion.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention based on the embodiments of the present invention.
In order to facilitate understanding of the invention, a number of embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the invention may be embodied in many different forms and is not limited to the embodiments described herein, but rather these embodiments are provided so as to render the disclosure more thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, and that the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Examples
Referring to fig. 1-4, the present invention provides a technical solution:
a high-precision pulse glue paper-impregnated current transformer convenient to disassemble and assemble comprises a wiring terminal 1, wherein a support 2 is arranged at the top of the wiring terminal 1, a junction box 3 is arranged on the back surface of the support 2, a dry CT4 is arranged at the top of the support 2, the dry CT4 is connected with the support 2 through a lead 5, a wall bushing 6 is arranged inside the dry CT4, a primary wiring row 7 is arranged on the front surface of the wall bushing 6, and a fixing mechanism 8 is arranged on the front surface of the dry CT4 and positioned outside the wall bushing 6;
the fixing mechanism 8 comprises a fixing ring 801, the fixing ring 801 is arranged on the front side of the dry type CT4 and located on the outer side of the wall bushing 6, an upper limiting ring 802 and a lower limiting ring 803 are arranged inside the fixing ring 801, and adjusting columns 804 are arranged on the upper side and the lower side of the fixing ring 801 and located at positions corresponding to the upper limiting ring 802 and the lower limiting ring 803.
Referring to fig. 1-4, when the current transformer is used, the two adjusting posts 804 both penetrate through the fixing ring 801 and are connected to the upper limiting ring 802 and the lower limiting ring 803 respectively, the fixing ring 801 and the dry CT4 are designed to be of an integral structure, the fixing ring 801 and the two adjusting posts 804 are connected by threads, the adjusting posts 804 are rotated to loosen the upper limiting ring 802 and the lower limiting ring 803, the wall bushing 6 is placed in the fixing ring 801, and penetrates through the space between the upper limiting ring 802 and the lower limiting ring 803, the front surface of the wall bushing 1 is a wire inlet end, the back surface of the wall bushing 2 is a wire outlet end, after the dry CT4 is penetrated and installed, the adjusting column 804 is rotated reversely to enable the upper limiting ring 802 and the lower limiting ring 803 to be close to each other, the anti-skid soft pads 805 are arranged on the inner sides of the upper limiting ring 802 and the lower limiting ring 803 and at the corresponding positions of the wall bushing 6, the anti-skid soft pads 805 are made of silica gel, the wall bushing 6 is extruded by the upper limiting ring 802 and the lower limiting ring 803 through the anti-skid soft pads 805 on the inner sides, the anti-skid soft pads 805 improve the friction force among the upper limiting ring 802, the lower limiting ring 803 and the wall bushing 6, so that the wall bushing 6 cannot fall off, when the wall bushing 6 needs to be taken down from the fixing mechanism 8, the adjusting column 804 is rotated to enable the upper limiting ring 802 and the lower limiting ring 803 to loosen the clamping of the wall bushing 6, the wall bushing 6 is taken out from the dry type CT4, the whole operation process is easy and quick, a user can easily take down the wall bushing 6, meanwhile, the anti-skid soft cushion 805 improves the friction force between the upper limiting ring 802 and the lower limiting ring 803 and the wall bushing 6, prevents the wall bushing 6 from loosening, meanwhile, the distance between the upper limiting ring 802 and the lower limiting ring 803 can be adjusted by increasing the adjusting column 804, so that the limiting sleeves with different diameters can be fixed.
Referring to fig. 1, 3 and 4, a wall bushing 6 is installed in a dry type CT4, a junction box 3 is connected with an electric wire, a connection terminal 1 has a supporting effect on a support 2, the support 2 has a supporting effect on the dry type CT4, the dry type CT4 is connected with the support 2 through a lead 5, a connection bar 7 is connected with another electric wire in a wiring manner, the wall bushing 6 is made of epoxy resin, the wall bushing 6 adopts a composite insulator as external insulation, the anti-seismic level of the wall bushing is greatly improved, according to the test data, the mutual inductor can meet the high anti-seismic requirement of 0.4g of horizontal acceleration, and the high-strength glass fiber reinforced plastic cylinder supported inside the mutual inductor effectively improves the safety and reliability of the operation of a composite product. Meanwhile, the silicone rubber outer sleeve has strong mechanical performance, is not easy to break, has good bending resistance, strong bearing internal pressure and good explosion resistance, and the research aims at carrying out three-dimensional modeling simulation analysis on the mechanical performance of the glue-impregnated paper mutual inductor so as to determine the optimal structural size of the glue-impregnated paper mutual inductor, improve the mechanical performance of a product and further improve the reliability of the product.
The utility model discloses work flow: when using current transformer, rotate regulation post 804 and make upper limit ring 802 and lower limit ring 803 loosen, put into solid fixed ring 801 wall bushing 6, and pass from between upper limit ring 802 and lower limit ring 803, pass dry CT4, after the installation is gone into, at the regulation post 804 of reverse rotation, make upper limit ring 802 and lower limit ring 803 be close to, upper limit ring 802 and lower limit ring 803 all extrude wall bushing 6 through inboard anti-skidding cushion 805, anti-skidding cushion 805 improves upper limit ring 802, frictional force between lower limit ring 803 and the wall bushing 6, make wall bushing 6 can't drop, take out wall bushing 6 from dry CT4, install wall bushing 6 in dry CT4, connect terminal box 3 with the electric wire, binding post 1 plays the supporting effect to support 2, support 2 then plays the supporting effect to dry CT4, dry CT4 is connected with support 2 through lead wire 5, connect terminal row 7 with another electric wire wiring, when needing to get wall bushing 6 from fixed mechanism 8 from the lower limit ring of fixed mechanism, the current transformer can be compared with current transformer's lower limit ring 802, the whole current transformer that has been got up the utility model wall bushing and has been compared this utility model wall bushing 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high accuracy pulse glue soaks paper current transformer convenient to dismouting, includes binding post (1), its characterized in that: the top of the wiring terminal (1) is provided with a support (2), the back of the support (2) is provided with a junction box (3), the top of the support (2) is provided with a dry CT (4), the dry CT (4) is connected with the support (2) through a lead (5), a wall bushing (6) is arranged inside the dry CT (4), the front of the wall bushing (6) is provided with a primary wiring row (7), and the front of the dry CT (4) and the outer side of the wall bushing (6) are provided with a fixing mechanism (8);
fixing mechanism (8) are including solid fixed ring (801), the front of dry CT (4) and the outside that is located wall bushing (6) are provided with solid fixed ring (801), gu the inside of fixed ring (801) is provided with spacing ring (802) and lower spacing ring (803) down, gu the upper and lower both sides of fixed ring (801) just are located spacing ring (802) and the corresponding position department of spacing ring (803) down and all are provided with regulation post (804).
2. The high-precision pulse glue paper-immersed current transformer convenient to disassemble and assemble according to claim 1, characterized in that: go up the inboard of spacing ring (802) and spacing ring (803) down and be located the corresponding position department of wall bushing (6) and all be provided with anti-skidding cushion (805), anti-skidding cushion (805) are made by the silica gel material.
3. The high-precision pulse glue paper-immersed current transformer convenient to disassemble and assemble according to claim 1, characterized in that: the fixing ring (801) and the dry CT (4) are designed into an integral structure, and the fixing ring (801) and the two adjusting columns (804) are connected in a threaded manner.
4. The high-precision pulse glue paper-immersed current transformer convenient to disassemble and assemble according to claim 1, characterized in that: the two adjusting columns (804) penetrate through the fixing ring (801) and are connected with the upper limiting ring (802) and the lower limiting ring (803) respectively.
5. The high-precision pulse glue paper-immersed current transformer convenient to disassemble and assemble according to claim 1, characterized in that: the wall bushing (6) is made of epoxy resin.
6. The high-precision pulse glue paper-immersed current transformer convenient to disassemble and assemble according to claim 1, characterized in that: the front surface of the wall bushing (6) is a wire inlet end, and the back surface of the wall bushing (6) is a wire outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800758.6U CN218497937U (en) | 2022-10-24 | 2022-10-24 | High-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222800758.6U CN218497937U (en) | 2022-10-24 | 2022-10-24 | High-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218497937U true CN218497937U (en) | 2023-02-17 |
Family
ID=85195402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222800758.6U Active CN218497937U (en) | 2022-10-24 | 2022-10-24 | High-precision pulse glue paper-dipping current transformer convenient to disassemble and assemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218497937U (en) |
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2022
- 2022-10-24 CN CN202222800758.6U patent/CN218497937U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 430010 No. 1701, Jiefang Avenue, Jiang'an District, Wuhan, Hubei Province Patentee after: STATE GRID HUBEI ELECTRIC POWER CO., LTD. WUHAN POWER SUPPLY Co. Patentee after: LILING HUAXIN INSULATOR TECHNOLOGY Co.,Ltd. Address before: 412205 Sanpu village, Pukou Town, Liling City, Zhuzhou City, Hunan Province Patentee before: LILING HUAXIN INSULATOR TECHNOLOGY Co.,Ltd. Patentee before: STATE GRID HUBEI ELECTRIC POWER CO., LTD. WUHAN POWER SUPPLY Co. |
|
| CP03 | Change of name, title or address |