CN118538523B - A current transformer - Google Patents
A current transformer Download PDFInfo
- Publication number
- CN118538523B CN118538523B CN202410790709.XA CN202410790709A CN118538523B CN 118538523 B CN118538523 B CN 118538523B CN 202410790709 A CN202410790709 A CN 202410790709A CN 118538523 B CN118538523 B CN 118538523B
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- wall
- primary
- plate
- iron core
- fixedly mounted
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000006698 induction Effects 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010030 laminating Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase AC
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention belongs to the technical field of current transformers, in particular to a current transformer which comprises a containing shell, a core mechanism and a connecting mechanism, wherein the containing shell comprises a primary shell and a secondary shell, the core mechanism comprises a primary iron core, a secondary iron core and a primary induction coil, the primary iron core is fixedly arranged on the inner wall of the primary shell, the primary induction coil is arranged outside the primary iron core, the secondary iron core is detachably arranged on the inner wall of the secondary shell, the connecting mechanism comprises a mounting lug plate, a fixing block, a plug pin and a limiting plate, the mounting lug plate is fixedly arranged on the outer wall of the secondary shell, the fixing block is fixedly arranged on the outer wall of the primary shell, the plug pin is fixedly arranged on the bottom surface of the mounting lug plate, the limiting plate is elastically arranged on the inner wall of the fixing block, a groove for the plug pin to be inserted is formed in the radial outer wall of the fixing block, the outer wall of the fixing block is slidably provided with an adjusting block, and the operation difficulty of winding a wire can be reduced as much as possible through the cooperation of the structures, and the working efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of current transformers, and particularly relates to a current transformer.
Background
A current transformer is an electrical device used in an electrical power system to measure current, convert high current into a smaller standardized current, and facilitate measuring and monitoring the current flow in the system, and the basic principle of the transformer is to induce current on the main winding of the transformer, and then convert it into a lower secondary current by the mutual inductance effect, which is in direct proportion to the main current.
In power systems, current transformers have a variety of applications, including current monitoring, current fault detection in protection systems, and for displaying and recording current values in meters and measuring devices, the current output from the secondary side being proportional to the current input from the primary side, and thus current transformers are capable of providing exactly the same characteristics as the current flow in the primary circuit, but measuring and monitoring over a smaller current range, which is very important for protection and control of the system.
The traditional current transformer generally adopts a closed-loop structure in design, and the closed-loop current transformer needs to be wound by wires when in use, and the wires are often required to be inserted repeatedly to be installed correctly due to the structural characteristics of the transformer, so that the complexity and difficulty of operation are increased, the possibility of misoperation is also improved, and the working efficiency is affected.
To this end, the invention provides a current transformer.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted by the invention for solving the technical problems is that the current transformer comprises a containing shell, a core mechanism and a connecting mechanism.
The housing case includes a primary case and a secondary case.
The core mechanism comprises a primary iron core, a secondary iron core and a primary induction coil, wherein the primary iron core is fixedly arranged on the inner wall of the primary shell, the primary induction coil is arranged outside the primary iron core, and the secondary iron core is detachably arranged on the inner wall of the secondary shell.
The connecting mechanism comprises an installation lug plate, a fixed block, a plug pin and a limiting plate, wherein the installation lug plate is fixedly arranged on the outer wall of the secondary shell, and the fixed block is fixedly arranged on the outer wall of the primary shell.
The grafting round pin fixed mounting is in the bottom surface of installing the otic placode, and limiting plate elastic mounting is at the inner wall of fixed block, and the recess that supplies the limiting plate to peg graft is seted up to the radial outer wall of grafting round pin.
Preferably, the outer wall sliding mounting of fixed block has the regulating block, drives the one end of regulating block and extends to the inner chamber of fixed block to with limiting plate's outer wall fixed connection.
The outer wall of the secondary shell is fixedly provided with an elastic sheet, and a notch for clamping the lead is formed in the elastic sheet.
The inside of the secondary housing is detachably provided with a fixing plate for fixing the secondary core.
Preferably, the bottom surface of secondary iron core is installed with the connecting plate elasticity, and the up end elastic mounting of primary iron core has the contact plate, and connecting plate and contact plate are the conductor material.
Preferably, the bottom surface fixed mounting of primary shell has the mounting box, and mounting box inner wall elastic mounting has the wind-up roll, and the radial outer wall of wind-up roll is provided with connecting wire, and connecting wire's one end and primary induction coil electric connection, connecting wire's the other end fixed mounting has the electric pole.
Preferably, the axial end of the wind-up roll is fixedly provided with an input wiring cylinder, the inner wall of the input wiring cylinder is fixedly provided with an insulating ring, the axial end of the insulating ring is fixedly provided with an output wiring cylinder, and the input wiring cylinder and the output wiring cylinder are electrically connected with a lead uniformly.
Preferably, the inner wall elasticity of installation case is provided with and connects the electric plate, connects the electric plate to be provided with two, and one of them connects the outer wall of electric plate and the outer wall slip laminating of output wiring section of thick bamboo, and another connects the outer wall of electric plate and the outer wall slip laminating of input wiring section of thick bamboo.
Preferably, the outer wall of the power connection plate is fixedly provided with connecting columns, one connecting column is connected with the input end of the primary induction coil, and the other connecting column is connected with the output end of the primary induction coil.
Preferably, the outer wall of the mounting box is provided with a control deflector rod through torsion spring rotation, the side wall of the control deflector rod is fixedly provided with a limit ratchet rod through a pin shaft, the radial outer wall of the wind-up roll is fixedly provided with a control ratchet wheel, and the tip end of the limit ratchet rod is attached to the outer wall of the control ratchet wheel.
Preferably, the inner wall fixed mounting of installing box has the installing support, and the inside slidable mounting of installing support has the deflector, and the one end of deflector and the outer wall fixed connection who connects the electric plate connect the outer wall of electric plate to be connected with the installing support through the elastic component.
The beneficial effects of the invention are as follows:
1. According to the invention, the primary shell and the secondary shell are arranged, the mounting lug plate is fixedly arranged on the outer wall of the secondary shell, the fixing block is fixedly arranged on the outer wall of the primary shell, the plug pin is fixedly arranged on the bottom surface of the mounting lug plate, the through hole for plugging the plug pin is formed in the outer wall of the fixing block, the limiting plate is elastically arranged on the inner wall of the fixing block, the radial outer wall of the plug pin is provided with the groove for plugging the limiting plate, when the secondary induction coil needs to be wound, the primary shell and the secondary shell are separated, and at the moment, the secondary shell is open, and compared with the current transformer of a closed loop in the prior art, the secondary shell can reduce the operation difficulty of winding wires as much as possible, and improve the working efficiency;
2. According to the invention, the winding roller is rotatably connected with the mounting box through the torsional spring, the winding roller rotates in the process of pulling out the connecting lead, after the connecting lead is pulled out to a required length, the winding roller is fixed through the clamping of the limiting ratchet rod and the control ratchet wheel, and when the connecting lead needs to be retracted, the control deflector rod is rotated until the limiting ratchet rod is separated from the control ratchet wheel, and at the moment, the torsional spring controls the winding roller to rotate, so that the automatic winding of the connecting lead is realized, the operation difficulty is further reduced, and the working efficiency is improved.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the installation of a contact plate in accordance with the present invention;
FIG. 3 is a cross-sectional view of a mounting block of the present invention;
Fig. 4 is a schematic view of the installation of the secondary core of the present invention;
FIG. 5 is a schematic view of the installation of the mounting box of the present invention;
FIG. 6 is a schematic view of the wind-up roll configuration of the present invention;
FIG. 7 is a schematic view of the structure of the power board of the present invention;
fig. 8 is a schematic view of the installation of an insulating ring in the present invention.
1, A primary shell; 2, a fixing plate, 3, an elastic sheet, 4, a secondary shell, 5, an adjusting block, 6, a mounting lug plate, 7, a fixing block, 8, a plug pin, 9, a contact plate, 10, a secondary iron core, 11, a connecting plate, 12, a primary iron core, 13, a primary induction coil, 14, a winding roller, 15, a mounting box, 16, a connecting wire, 17, a power receiving post, 18, a control deflector rod, 19, a limiting ratchet rod, 20, a control ratchet wheel, 21, a power receiving plate, 22, a mounting bracket, 23, an input wiring cylinder, 24, a guide plate, 25, a connecting post, 26, an output wiring cylinder, 27, an insulating ring, 28 and a limiting plate.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
An embodiment one, as shown in fig. 1 to 4, of the current transformer according to the embodiment of the invention includes a housing, a core mechanism and a connection mechanism.
The housing case comprises a primary case 1 and a secondary case 4, and a complete current transformer case is assembled by the primary case 1 and the secondary case 4, wherein the secondary case 4 is used for winding a secondary induction coil.
The core mechanism comprises a primary iron core 12, a secondary iron core 10 and a primary induction coil 13, wherein the primary iron core 12 is fixedly arranged on the inner wall of a primary shell 1, the primary shell 1 provides an installation space for the primary iron core 12, the primary induction coil 13 is arranged outside the primary iron core 12, the primary induction coil 13 is in a spiral shape and uniformly distributed on the outer wall of the primary iron core 12, and the number of turns of the primary induction coil 13 is set according to actual production requirements.
The secondary core 10 is detachably mounted on the inner wall of the secondary housing 4, and the secondary housing 4 provides a mounting and protecting space for the secondary core 10.
The connecting mechanism comprises an installation lug plate 6, a fixed block 7, a plug pin 8 and a limiting plate 28, wherein the installation lug plate 6 is fixedly installed on the outer wall of the secondary shell 4, the fixed block 7 is fixedly installed on the outer wall of the primary shell 1, and the connection between the primary shell 1 and the secondary shell 4 is realized by connecting the installation lug plate 6 with the fixed block 7.
When the secondary induction coil needs to be wound, the primary shell 1 and the secondary shell 4 are separated, the secondary shell 4 is open at the moment, and compared with a closed-loop current transformer winding secondary induction coil in the prior art, the open secondary shell 4 can reduce the operation difficulty of winding a wire as much as possible, and improve the working efficiency.
The plug pin 8 is fixedly arranged on the bottom surface of the installation lug plate 6, the outer wall of the fixed block 7 is provided with a through hole for the plug pin 8 to plug, and the preliminary connection of the installation lug plate 6 and the fixed block 7 is realized through the plug pin 8 and the fixed block 7.
Limiting plate 28 elastic mounting is at the inner wall of fixed block 7, limiting plate 28's outer wall fixed mounting has the spring, the other end and the inner wall fixed connection of fixed block 7 of spring, the recess that supplies limiting plate 28 to peg graft is seted up to peg graft the radially outer wall of round pin 8, wherein, limiting plate 28's outer wall slope sets up, at peg graft round pin 8 insert the in-process of fixed block 7, peg graft round pin 8's bottom surface roof pressure limiting plate 28's inclined plane, control limiting plate 28 slides, until peg graft round pin 8 slides to outside recess position and limiting plate 28 just, promote limiting plate 28 and recess grafting through the elasticity of spring this moment, realize peg graft round pin 8's fixed, accomplish the quick assembly of primary shell 1 and secondary shell 4.
After the operation is finished, the secondary induction coil needs to be dismantled, at the moment, the limiting plate 28 is slid until the limiting plate 28 is separated from the plug pin 8, the secondary shell 4 is pulled after the separation until the plug pin 8 is separated from the fixed block 7, and the secondary shell 4 and the primary shell 1 are separated, so that the secondary induction coil is conveniently dismantled.
In order to facilitate sliding the limiting plate 28 when the secondary housing 4 is removed, the outer wall of the fixed block 7 is slidably provided with the adjusting block 5, one end of the adjusting block 5 is driven to extend to the inner cavity of the fixed block 7 and fixedly connected with the outer wall of the limiting plate 28, and when the secondary housing 4 is removed, the limiting plate 28 is pressed by pressing the adjusting block 5 and is controlled to be separated from the plug pin 8, so that the separation of the limiting plate 28 and the plug pin 8 is realized.
The outer wall fixed mounting of secondary shell 4 has elastic sheet 3, has offered the opening that is used for the centre gripping wire in the elastic sheet 3, and elastic sheet 3 is provided with a plurality ofly, and a plurality of elastic sheets 3 are along the outside evenly distributed of secondary shell 4 to the centre gripping of wire is fixed when being convenient for twine secondary induction coil, simultaneously through elastic sheet 3 centre gripping wire, can be convenient for count the number of turns of the outside winding wire of secondary shell 4.
The inside of the secondary housing 4 is detachably provided with a fixing plate 2 for fixing the secondary core 10, and the fixing plate 2 is connected with the inside of the secondary housing 4 through screws, so that the secondary core 10 is detachably connected with the secondary housing 4.
In addition, an elastic piece 3 for holding the wire is also provided on the inner wall of the fixing plate 2, and the position corresponds to the position of the elastic piece 3 outside the secondary housing 4.
The connecting plate 11 is elastically installed on the bottom surface of the secondary iron core 10, and an elastic copper plate is arranged on the bottom surface of the secondary iron core 10 and fixedly connected with the outer wall of the connecting plate 11.
The upper end face of the primary iron core 12 is elastically provided with a contact plate 9, the connecting plate 11 and the contact plate 9 are both made of conductor materials, the outer wall of the contact plate 9 is fixedly provided with a metal spring, and the other end of the metal spring is fixed with the outer wall of the primary iron core 12.
After the primary housing 1 and the secondary housing 4 are assembled, the contact plate 9 and the connection plate 11 are tightly attached by elastic force pressing, and at this time, the electrical connection between the secondary core 10 and the primary core 12 is realized.
In addition, in the process of separating the primary shell 1 from the secondary shell 4, the elastic force received by the contact plate 9 and the connecting plate 11 assists the primary shell 1 to be separated from the secondary shell 4, and further, after the limiting plate 28 is separated from the plug pin 8, the primary shell 1 and the secondary shell 4 are automatically separated, so that the operation difficulty is further reduced.
Example two as shown in fig. 5 to 8, comparative example one, in which another embodiment of the present invention is:
The bottom surface fixed mounting of primary shell 1 has install bin 15, and install bin 15 inner wall elastic mounting has wind-up roll 14, and wherein the axial end of wind-up roll 14 rotates with the inner wall of install bin 15 through the round pin axle to be connected, and the outer wall fixed mounting of round pin axle has the torsional spring, and the other end and the outer wall fixed connection of install bin 15 of torsional spring, after rotating wind-up roll 14, control wind-up roll 14 through the elasticity of torsional spring and reset.
The radial outer wall of the wind-up roll 14 is provided with a connecting wire 16, one end of the connecting wire 16 is electrically connected with the primary induction coil 13, the other end of the connecting wire 16 is fixedly provided with a power connection column 17, and after an external power supply is connected with the power connection column 17, connection with the primary induction coil 13 is realized.
When in use, the connecting wire 16 is wound by the winding roller 14, so that the storage space is saved, and when power connection is needed, the connecting wire 16 is pulled out, so that the use is convenient.
The input wiring cylinder 23 is fixedly arranged at the axial end of the winding roller 14, the insulating ring 27 is fixedly arranged on the inner wall of the input wiring cylinder 23, the output wiring cylinder 26 is fixedly arranged at the axial end of the insulating ring 27, the input wiring cylinder 23 and the output wiring cylinder 26 are isolated through the insulating ring 27, short circuit is prevented during power connection, and the use safety is improved.
The input wiring cylinder 23 and the output wiring cylinder 26 are uniformly connected with the lead 16, and the two ends of the primary induction coil 13 are respectively communicated with the input wiring cylinder 23 and the output wiring cylinder 26, so that the power supply is connected, and the use is convenient.
The inner wall elasticity of installation case 15 is provided with and connects electric plate 21, connects electric plate 21 to be common conductor graphite board, connects electric plate 21 to be provided with two, and the outer wall of one of them electric plate 21 and the outer wall slip laminating of output wiring section of thick bamboo 26, and wind-up roll 14 pivoted process output wiring section of thick bamboo 26 rotates in step, connects electric plate 21 to keep the state of contact with output wiring section of thick bamboo 26 this moment, and then realizes switching on of circuit.
The outer wall of the other power receiving plate 21 is slidably attached to the outer wall of the input wire barrel 23, and during rotation of the input wire barrel 23, the other power receiving plate 21 is kept attached to the input wire barrel 23, so that conduction of the circuit is maintained in a rotated state.
The outer wall of the power connection plate 21 is fixedly provided with connecting columns 25, one connecting column 25 is connected with the input end of the primary induction coil 13, and then when the power connection plate 21 is attached to the output wiring cylinder 26, the output wiring cylinder 26 is electrically connected with the primary induction coil 13.
The other connecting post 25 is connected to the output end of the primary induction coil 13, and when the power connection plate 21 is attached to the input wire barrel 23, the input wire barrel 23 is electrically connected to the primary induction coil 13.
The outer wall of the mounting box 15 is rotatably provided with a control deflector 18 through a torsion spring, and after the control deflector 18 is rotated, the control deflector 18 is driven to reset through the torsion spring.
The side wall of the control deflector rod 18 is fixedly provided with a limiting ratchet rod 19 through a pin shaft, and the limiting ratchet rod 19 is driven to rotate by rotating the control deflector rod 18.
The radial outer wall of the wind-up roll 14 is fixedly provided with a control ratchet 20, the tip end of a limit ratchet rod 19 is attached to the outer wall of the control ratchet 20, the elasticity of a torsion spring controls the limit ratchet rod 19, the limit ratchet rod 19 has a trend of being clamped with the control ratchet 20 in real time, and the limit ratchet rod 19 is clamped with the control ratchet 20, so that unidirectional rotation of the wind-up roll 14 is limited.
In the process of pulling out the connecting wire 16, the wind-up roller 14 rotates, after the connecting wire 16 is pulled out to a required length, the wind-up roller 14 is fixed through the clamping of the limiting ratchet rod 19 and the control ratchet 20, when the connecting wire 16 needs to be retracted, the control deflector 18 is rotated until the limiting ratchet rod 19 is separated from the control ratchet 20, and at the moment, the torsion spring controls the wind-up roller 14 to rotate, so that the automatic winding of the connecting wire 16 is realized.
The inner wall of the mounting box 15 is fixedly provided with a mounting bracket 22, a guide plate 24 is slidably arranged in the mounting bracket 22, and the outer wall of the guide plate 24 is slidably attached to the inner wall of the mounting bracket 22.
One end of the guide plate 24 is fixedly connected with the outer wall of the electric connection plate 21, so that sliding connection of the electric connection plate 21 and the guide plate 24 is realized, the outer wall of the electric connection plate 21 is connected with the mounting bracket 22 through an elastic piece, a spring is fixedly arranged on the outer wall of the electric connection plate 21, the other end of the spring is fixedly connected with the outer wall of the mounting bracket 22, the electric connection plate 21 is pushed through the elastic force of the spring, and the electric connection plate 21 has a trend of being attached to the outer walls of the output wiring cylinder 26 and the input wiring cylinder 23 in real time and is used for improving the stability of electric connection.
Wherein the connection posts 25 penetrate the mounting bracket 22 so as to slide synchronously when the power receiving plate 21 slides.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410790709.XA CN118538523B (en) | 2024-06-19 | 2024-06-19 | A current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410790709.XA CN118538523B (en) | 2024-06-19 | 2024-06-19 | A current transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118538523A CN118538523A (en) | 2024-08-23 |
| CN118538523B true CN118538523B (en) | 2024-12-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410790709.XA Active CN118538523B (en) | 2024-06-19 | 2024-06-19 | A current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118538523B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212161547U (en) * | 2020-06-09 | 2020-12-15 | 天津瑞达物联科技有限公司 | Novel open-close type residual current mutual inductance device |
| CN213691698U (en) * | 2020-10-28 | 2021-07-13 | 湖北玛耐伦科技有限公司 | Magnetic ring structure convenient for winding |
| CN214895483U (en) * | 2021-07-05 | 2021-11-26 | 广东智为众胜科技有限公司 | A residual current transformer device |
| CN118173358A (en) * | 2024-03-12 | 2024-06-11 | 南京立业电力变压器有限公司 | A transformer with an insulator-receiving cable structure and a method of using the transformer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2551020Y2 (en) * | 1991-10-15 | 1997-10-22 | 松下電工株式会社 | High voltage pulse transformer coil device |
| CN103107012B (en) * | 2013-01-04 | 2016-12-28 | 河南科技大学 | A kind of electronic current mutual inductor and the online energy taking device in high-pressure side thereof |
| CN205406268U (en) * | 2016-03-03 | 2016-07-27 | 广州通用特互电气有限公司 | Open -type current transformer |
| CN207397930U (en) * | 2017-10-13 | 2018-05-22 | 张一飞 | A kind of novel open-close type current transformer |
| CN208589355U (en) * | 2018-09-11 | 2019-03-08 | 安庆大众电子科技有限公司 | One kind being easily installed disassembly current transformer |
| CN215265876U (en) * | 2021-04-22 | 2021-12-21 | 内蒙古电力（集团）有限责任公司呼和浩特供电局 | Open type mutual inductor against charge evasion |
-
2024
- 2024-06-19 CN CN202410790709.XA patent/CN118538523B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212161547U (en) * | 2020-06-09 | 2020-12-15 | 天津瑞达物联科技有限公司 | Novel open-close type residual current mutual inductance device |
| CN213691698U (en) * | 2020-10-28 | 2021-07-13 | 湖北玛耐伦科技有限公司 | Magnetic ring structure convenient for winding |
| CN214895483U (en) * | 2021-07-05 | 2021-11-26 | 广东智为众胜科技有限公司 | A residual current transformer device |
| CN118173358A (en) * | 2024-03-12 | 2024-06-11 | 南京立业电力变压器有限公司 | A transformer with an insulator-receiving cable structure and a method of using the transformer |
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| Publication number | Publication date |
|---|---|
| CN118538523A (en) | 2024-08-23 |
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