CN107705970A - A kind of current transformer - Google Patents
A kind of current transformer Download PDFInfo
- Publication number
- CN107705970A CN107705970A CN201610682640.4A CN201610682640A CN107705970A CN 107705970 A CN107705970 A CN 107705970A CN 201610682640 A CN201610682640 A CN 201610682640A CN 107705970 A CN107705970 A CN 107705970A
- Authority
- CN
- China
- Prior art keywords
- primary winding
- connecting hole
- terminal plate
- linking arm
- current transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- 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
Abstract
The invention discloses a kind of current transformer, can solve the problem that a copper conductor due to kelvin effect existing problem of temperature rise.Including primary winding and two primary connection plates, the primary winding is combined by cylindrical conductive bar and the tubular conductive pipe being set with thereon, the terminal plate is in the form of an " L ", it is made up of linking arm peace terminal plate, the linking arm upper end is provided with connecting hole, and the primary winding is connected by the connecting hole with the terminal plate.
Description
Technical field
The present invention relates to transformer, more particularly to great current mutual inductor.
Background technology
A copper conductor in transformer industry in great current mutual inductor by electric current after can produce the collection skin effect of electric current
Should, charge concentration constantly rises on the surface of Primary Conductor, the over time temperature of conductive surface, and ascending temperature is too high
Insulation ag(e)ing can be made to shorten service life of equipment, insulation breakdown is even resulted in, do not reach the temperature increase requirement of national Specification.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of current transformer, can solve the problem that a copper conductor due to collection
Skin effect and existing problem of temperature rise.
In order to solve the above technical problems, the technical scheme is that：Including primary winding and two primary connection plates, institute
Primary winding to be stated to be combined by cylindrical conductive bar and the tubular conductive pipe being set with thereon, the terminal plate is in the form of an " L ", by
Linking arm peace terminal plate forms, and the linking arm upper end is provided with connecting hole, and the primary winding is connect by the connecting hole with described
Line plate connects.
The contact tube both ends are provided with step to be installed in the connecting hole.
The invention has the advantages that a copper conductor is by cylindrical conductive bar and the tubular conductive pipe group being set with thereon
Into this split-type structural generates the effect of shunting, for overcoming influence caused by kelvin effect, leads to a copper conductor
The net sectional area increase of overcurrent, effective resistance diminishes, so as to solve problem of temperature rise.Can also solve switch cubicle peace simultaneously
Dress problem, reduces volume, reduces cost.
Brief description of the drawings
Fig. 1 is the structural representation of conducting rod；Fig. 2 is the structural representation of contact tube；Fig. 3 is that the structure of primary winding is shown
It is intended to；Fig. 4 is primary winding and primary connection plate connection relationship diagram；Fig. 5 is Fig. 4 left view.
In figure：1- conducting rods；2- contact tubes；3- primary windings；4- primary connection plates；5- linking arms；The flat terminal plates of 6-；7-
Connecting hole；8- screwed holes；9- steps.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, primary winding 3 is split-type structural, by cylindrical conductive bar 1 and tubular conductive pipe 2
Be welded after suit with silver soldering, this split-type structural causes have electric current to flow through on conducting rod 1 and contact tube 2, can with gram
Take influences caused by kelvin effect；As shown in Figure 4, Figure 5, primary connection plate 4 is in the form of an " L ", by 5 peaceful terminal plate of linking arm
6 compositions, flat terminal plate 6 are threaded the upper end of 8 linking arm of hole 5 and are provided with connecting hole 7, and the both ends of contact tube 2, which are provided with step 9 and are arranged on, to be connected
Connect in hole 8 and welded with silver soldering so that primary winding 3 links together with terminal plate 4.
Claims (2)
1. a kind of current transformer, including primary winding and two primary connection plates, it is characterised in that the primary winding is by justifying
Cylindricality conducting rod and the tubular conductive pipe being set with thereon combine, and the terminal plate is in the form of an " L ", by linking arm peace wiring
Plate forms, and the linking arm upper end is provided with connecting hole, and the primary winding is connected by the connecting hole with the terminal plate.
2. support type current transformer according to claim 1, it is characterised in that used provided with step at the contact tube both ends
To be installed in the connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682640.4A CN107705970A (en) | 2016-08-09 | 2016-08-09 | A kind of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610682640.4A CN107705970A (en) | 2016-08-09 | 2016-08-09 | A kind of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107705970A true CN107705970A (en) | 2018-02-16 |
Family
ID=61169316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610682640.4A Pending CN107705970A (en) | 2016-08-09 | 2016-08-09 | A kind of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107705970A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660569A (en) * | 2019-08-29 | 2020-01-07 | 合肥博雷电气有限公司 | Pulse forming inductor with coaxial structure and processing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61163614A (en) * | 1985-01-11 | 1986-07-24 | Nissin Electric Co Ltd | Current transformer |
| CN202332560U (en) * | 2011-11-17 | 2012-07-11 | 上海Mwb互感器有限公司 | Conducting component of current transformer and current transformer thereof |
| CN202930192U (en) * | 2012-10-30 | 2013-05-08 | 天津市百利纽泰克电气科技有限公司 | Primary wiring terminal of current transformer |
| CN103117162A (en) * | 2011-11-17 | 2013-05-22 | 上海Mwb互感器有限公司 | Primary transition device of current transformer and current transformer |
| CN203950670U (en) * | 2014-06-26 | 2014-11-19 | 山东泰开互感器有限公司 | Novel 500kV oil-immersed inverted current transformer |
| CN205248095U (en) * | 2015-12-21 | 2016-05-18 | 中国西电电气股份有限公司 | Equidistance connection in series -parallel changing -over formula current transformer |
| CN206179671U (en) * | 2016-08-09 | 2017-05-17 | 天水长开互感器制造有限公司 | Current inducer |
-
2016
- 2016-08-09 CN CN201610682640.4A patent/CN107705970A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61163614A (en) * | 1985-01-11 | 1986-07-24 | Nissin Electric Co Ltd | Current transformer |
| CN202332560U (en) * | 2011-11-17 | 2012-07-11 | 上海Mwb互感器有限公司 | Conducting component of current transformer and current transformer thereof |
| CN103117162A (en) * | 2011-11-17 | 2013-05-22 | 上海Mwb互感器有限公司 | Primary transition device of current transformer and current transformer |
| CN202930192U (en) * | 2012-10-30 | 2013-05-08 | 天津市百利纽泰克电气科技有限公司 | Primary wiring terminal of current transformer |
| CN203950670U (en) * | 2014-06-26 | 2014-11-19 | 山东泰开互感器有限公司 | Novel 500kV oil-immersed inverted current transformer |
| CN205248095U (en) * | 2015-12-21 | 2016-05-18 | 中国西电电气股份有限公司 | Equidistance connection in series -parallel changing -over formula current transformer |
| CN206179671U (en) * | 2016-08-09 | 2017-05-17 | 天水长开互感器制造有限公司 | Current inducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110660569A (en) * | 2019-08-29 | 2020-01-07 | 合肥博雷电气有限公司 | Pulse forming inductor with coaxial structure and processing method thereof |
| CN110660569B (en) * | 2019-08-29 | 2021-06-04 | 合肥博雷电气有限公司 | Pulse forming inductor with coaxial structure and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202749143U (en) | Pipe-type cable | |
| CN104681253B (en) | Switch transformer and Switching Power Supply | |
| CN107705970A (en) | A kind of current transformer | |
| CN202120693U (en) | Pillar type arc preventing insulator | |
| CN206179671U (en) | Current inducer | |
| CN203134564U (en) | Double-series capacitor bank | |
| CN202840008U (en) | Duckbill pull-rod type earth wire | |
| CN204243671U (en) | A kind of ultrahigh voltage direct current wall bushing central guiding fulgurite assembly | |
| CN202695100U (en) | Structure of main transformer consisting of multiple transformers in inverse power supply | |
| CN204441841U (en) | A kind of GIL structure | |
| CN205248085U (en) | Superhigh pressure device of being qualified for next round of competitions | |
| CN203983531U (en) | 10kV drop switch ground connection connecting rod | |
| CN209233171U (en) | A kind of 500kV power distribution equipment platform outlet structure | |
| CN204347071U (en) | Secondary short circuit device is used in a kind of pouring current transformer test | |
| CN203910994U (en) | Copper-aluminum transition wiring terminal | |
| CN208189314U (en) | A kind of tubular resistor suitable for high current | |
| CN102624127A (en) | Aluminum copper connection structure for aluminum wire motor | |
| CN107946026B (en) | External current transformer for transformer | |
| CN202394680U (en) | Large-power rectifier transformer of charger | |
| CN209591634U (en) | A kind of welding combined type current-carrying conductor structure | |
| CN207338045U (en) | A kind of resistance unit structure of shielding | |
| CN206583956U (en) | A kind of electronic current voltage transformer | |
| CN206023125U (en) | A kind of tubular bus connector | |
| CN104505785B (en) | Ultrahigh-voltage direct current wall bushing center conductive pipe assembly | |
| CN204167242U (en) | A kind of square attachment fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |
|
| RJ01 | Rejection of invention patent application after publication |