CN206223873U - A kind of transformer core experimental rig - Google Patents
A kind of transformer core experimental rig Download PDFInfo
- Publication number
- CN206223873U CN206223873U CN201621305462.5U CN201621305462U CN206223873U CN 206223873 U CN206223873 U CN 206223873U CN 201621305462 U CN201621305462 U CN 201621305462U CN 206223873 U CN206223873 U CN 206223873U
- Authority
- CN
- China
- Prior art keywords
- coil
- determination
- whole
- unshakable
- sections
- 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.)
- Active
Links
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model is related to a kind of transformer core experimental rig, belongs to technical field of electromagnetic measurement.Technical scheme is：Four end to end compositions of arm unshakable in one's determination, one square frame, square-shaped frame is erected at base（4）On, each arm unshakable in one's determination is provided with three sections of whole coils of interconnection, the number of turn of three sections of whole coils is identical, gap is provided between adjacent two sections of whole coils, the whole coil includes excitation coil and measuring coil, the excitation coil and measuring coil are formed by the parallel coiling of enamel covered wire respectively, and excitation coil is identical with the number of turn of measuring coil, base（4）On be respectively equipped with excitation coil binding post（5）With measuring coil binding post（6）, briquetting is provided between arm two ends unshakable in one's determination and adjacent two sections of whole coils（3）.The utility model can simulate the transformer iron core structure of any different stepping joint forms, and can accurately measure the various magnetic property data for obtaining tested core model, provide the comparative result of quantization, simple to operate, easy.
Description
Technical field
The utility model is related to a kind of transformer core experimental rig, the transformation under measurable, relatively more different joint forms
Device average specific loss, excitatory volt-ampere, magnetization curve unshakable in one's determination etc., belong to technical field of electromagnetic measurement.
Background technology
At present, the primary structure form of transformer core is stack-up type, be by longitudinal shear into one fixed width silicon steel
With the horizontal silicon steel sheet for being cut into definite shape and size, then silicon steel sheet stack is got up to constitute transformer core.It is right in order to avoid occurring
Seam, traditionally interlocks closed assembly into iron core by silicon steel sheet by certain endless form layering, and this circulation folds mode and is referred to as
" stepping overlap joint ", the seam unshakable in one's determination in each layer turns into " step-lap laminated ".By two correspondence step-lap laminateds across silicon steel sheet layer
Number, can be described as 2 grades, 3 grades, 4 grades, 5 grades, the stepping joint forms such as 6 grades.But the ratio between step lapped iron cores at different levels is damaged
Consumption, exciting power, magnetization property difference etc. do not have a kind of special purpose device simple and easy to apply and it is measured compare.So,
In the design of transformer core, the odds to stepping overlapping modes at different levels that cannot be quantified relatively is evaluated.
Utility model content
The utility model purpose is to provide a kind of transformer core experimental rig, can measure different stepping joint forms and fold
The transformer core magnetic property being made, and quantitative assessment is made to stepping joint form, solve problem present in background technology.
The technical solution of the utility model is：
A kind of transformer core experimental rig, comprising arm unshakable in one's determination, whole coil, briquetting, base, excitation coil binding post and
Measuring coil binding post, four end to end compositions of arm unshakable in one's determination, one square frame, square-shaped frame is erected on base, each
Arm unshakable in one's determination is provided with three sections of whole coils of interconnection, and the number of turn of three sections of whole coils is identical, adjacent two sections of whole coils it
Between be provided with gap, the whole coil includes excitation coil and measuring coil, and the excitation coil and measuring coil are respectively by painting
The parallel coiling of copper-clad line is formed, and excitation coil is identical with the number of turn of measuring coil, and excitation coil binding post is respectively equipped with base
With measuring coil binding post, briquetting is provided between arm two ends unshakable in one's determination and adjacent two sections of whole coils.
The excitation coil is formed by the parallel coiling of enamel covered wire of two or more than two, and every enamel covered wire is around complete four
The excitation coil in whole coil on individual arm unshakable in one's determination, enamel covered wire coiling of the measuring coil by diameter less than 1mm is formed,
The enamel covered wire of the excitation coil and the parallel coiling of the enamel covered wire of measuring coil.
The inner side and outer side of the whole coil is equipped with insulated non-magnetic material.
Above-mentioned transformer core experimental rig, also comprising tested iron core in composition, tested iron core is located at whole on arm unshakable in one's determination
In body coil, briquetting is pressed on the gap being tested between the two ends of iron core and adjacent two sections of whole coils.
The tested iron core is folded using stepping joint form by polylith silicon steel sheet and formed.
The briquetting includes turning briquetting and intermediate pressing block, and turning briquetting is pressed in and two ends unshakable in one's determination are tested on arm unshakable in one's determination, in
Between briquetting be pressed on the gap on arm unshakable in one's determination between adjacent two sections of whole coils.
During measurement, the voltage of electric current and measuring coil first by power analyzer measurement excitation coil, by electric current
Total losses and total excitatory volt-ampere are obtained with the vector multiplications of voltage.By being tested weight unshakable in one's determination, average specific loss is calculated
And excitatory volt-ampere.
The beneficial effects of the utility model are：The transformer iron core structure of any different stepping joint forms can be simulated,
And the various magnetic property data for obtaining tested core model can be accurately measured, and the comparative result of quantization is given, it is simple to operate, easily
OK.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is schematic diagram after the tested insertion whole coil unshakable in one's determination of the utility model；
Fig. 3 is the tested core construction schematic diagram of the utility model；
Fig. 4 is that the utility model is tested monolithic schematic diagram unshakable in one's determination；
In figure：Arm unshakable in one's determination 1, whole coil 2, briquetting 3, base 4, excitation coil binding post 5, measuring coil binding post 6, quilt
Survey unshakable in one's determination 7.
Specific embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail.
Referring to the drawings 1,2,3, a kind of transformer core experimental rig, comprising arm unshakable in one's determination 1, whole coil 2, briquetting 3, base
4th, excitation coil binding post 5 and measuring coil binding post 6, four end to end compositions of arm unshakable in one's determination, one square frame are square
Shape framework is located on base 4, and each arm unshakable in one's determination is provided with three sections of whole coils of interconnection, three sections of number of turn phases of whole coil
Together, gap is provided between adjacent two sections of whole coils, the whole coil includes excitation coil and measuring coil, the excitation line
Circle and measuring coil are formed by the parallel coiling of enamel covered wire respectively, and excitation coil is identical with the number of turn of measuring coil, are divided on base 4
Excitation coil binding post 5 and measuring coil binding post 6 are not provided with, and pressure is provided between arm two ends unshakable in one's determination and adjacent two sections of whole coils
Block 3.
In the present embodiment, the excitation coil is formed by the parallel coiling of enamel covered wire of two or more than two, every
Excitation coil of the enamel covered wire in the whole coil on complete four arms unshakable in one's determination, the enamel covered wire diameter that excitation coil is used by
Exciting current size that it is flowed through determines, draw can be determined according to unshakable in one's determination and power supply capacity after binding post and coiling series connection or
It is in parallel.The measuring coil is formed by diameter less than the enamel covered wire coiling of 1mm, the enamel covered wire of the excitation coil and measurement
The parallel coiling of enamel covered wire of coil.The inner side and outer side of whole coil 2 is equipped with insulated non-magnetic material.Base 4 is using exhausted
Edge non-magnet material makes.
Tested iron core 7 is folded using stepping joint form by polylith silicon steel sheet and formed.Can be using any regular when folding
The silicon steel sheet used under joint form, and different joint forms is same group, and step is as follows：
1. a number of silicon steel sheet has been sheared by required dimensions, and silicon steel sheet has been weighed；
2. determine to need several stepping joint forms of checking, first just silicon steel sheet is folded by one of which stepping joint form
Tested unshakable in one's determination 7 are made, and by tested unshakable in one's determination 7 whole coil being inserted on arm unshakable in one's determination, is pressed with briquetting 3；
3. experimental line is connected, the total losses of core model, total excitatory volt-ampere, voltage is obtained using power analyzer measurement
Current waveform；
4. silicon steel sheet is folded into iron core by another stepping joint form, 2. and 3. repetition walks；
5. experimental data is arranged, the average specific loss of core model under various joint forms, excitatory volt-ampere, magnetic is calculated
Change curve etc., the quality to several stepping joint forms carries out quantization comparing.
Claims (6)
1. a kind of transformer core experimental rig, it is characterised in that：Comprising arm unshakable in one's determination（1）, whole coil（2）, briquetting（3）, bottom
Seat（4）, excitation coil binding post（5）With measuring coil binding post（6）, four end to end compositions of arm unshakable in one's determination, one square-shaped frame
Frame, square-shaped frame is erected at base（4）On, each arm unshakable in one's determination（1）It is provided with three sections of whole coils of interconnection, three sections of entirety
The number of turn of coil is identical, and gap, the whole coil are provided between adjacent two sections of whole coils（2）Comprising excitation coil and measurement
Coil, the excitation coil and measuring coil are formed by the parallel coiling of enamel covered wire respectively, the circle of excitation coil and measuring coil
Identical, the base of number（4）On be respectively equipped with excitation coil binding post（5）With measuring coil binding post（6）, arm two ends unshakable in one's determination and adjacent
Briquetting is provided between two sections of whole coils（3）.
2. a kind of transformer core experimental rig according to claim 1, it is characterised in that：The excitation coil is by two
Root or the parallel coiling of the enamel covered wire of more than two are formed, and every enamel covered wire is in the whole coil on complete four arms unshakable in one's determination
Excitation coil, the measuring coil is formed by diameter less than the enamel covered wire coiling of 1mm, the enamel covered wire of the excitation coil and
The parallel coiling of enamel covered wire of measuring coil.
3. a kind of transformer core experimental rig according to claim 1 and 2, it is characterised in that：The whole coil
Inner side and outer side is equipped with insulated non-magnetic material.
4. a kind of transformer core experimental rig according to claim 1, it is characterised in that：Also comprising tested iron in composition
The heart（7）, it is tested iron core（7）It is located in the whole coil on arm unshakable in one's determination, briquetting（3）It is pressed in tested iron core（7）Two ends and adjacent
On gap between two sections of whole coils.
5. a kind of transformer core experimental rig according to claim 4, it is characterised in that：The tested iron core（7）By
Polylith silicon steel sheet is folded using stepping joint form and formed.
6. a kind of transformer core experimental rig according to claim 4 or 5, it is characterised in that：The briquetting（3）Comprising
Turning briquetting and intermediate pressing block, turning briquetting are pressed in and iron core are tested on arm unshakable in one's determination（7）Two ends, intermediate pressing block is pressed on arm unshakable in one's determination
On gap between adjacent two sections of whole coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305462.5U CN206223873U (en) | 2016-12-01 | 2016-12-01 | A kind of transformer core experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621305462.5U CN206223873U (en) | 2016-12-01 | 2016-12-01 | A kind of transformer core experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223873U true CN206223873U (en) | 2017-06-06 |
Family
ID=58784060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621305462.5U Active CN206223873U (en) | 2016-12-01 | 2016-12-01 | A kind of transformer core experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206223873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297195A (en) * | 2019-07-29 | 2019-10-01 | 海南金盘电气研究院有限公司 | A kind of transformer core Distribution of Magnetic Field detection system |
-
2016
- 2016-12-01 CN CN201621305462.5U patent/CN206223873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110297195A (en) * | 2019-07-29 | 2019-10-01 | 海南金盘电气研究院有限公司 | A kind of transformer core Distribution of Magnetic Field detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107317331A (en) | A kind of extra-high voltage transformer axial symmetry D.C. magnetic biasing simulation model | |
| CN106291123B (en) | A kind of method directly measuring magnetic cell winding loss | |
| CN103887038B (en) | Coupling inductor | |
| CN102360857B (en) | Integrated network distributing transformer with error compensating mutual inductor | |
| CN102096060A (en) | Circuit for checking on-site accuracy of current transformer under condition of underload operations | |
| CN108414879B (en) | Short-circuit analog platform and assessment method between Wound iron-core transformer lamination | |
| CN107015178A (en) | The measuring method of transformer core material hysteresis curve under harmonic excitation | |
| CN101303394B (en) | Device and method for testing hydroelectric generating set electricity generator stator core | |
| Marketos et al. | Experimental and numerical investigation of flux density distribution in the individual packets of a 100 kVA transformer core | |
| CN109283399A (en) | A kind of measurement method of high frequency magnetic components winding loss | |
| CN107703368A (en) | A kind of measuring method of inductance under transformer depth saturation state | |
| CN106383328A (en) | Excitation characteristic test method applicable to ultrahigh-voltage TPY current transformers | |
| CN206223873U (en) | A kind of transformer core experimental rig | |
| CN101552101A (en) | Magnetic device with series excitation magnetic core | |
| CN106908745B (en) | A kind of test and calculation method of the ferromagnetic element excitation property based on low-frequency square-wave and no-load loss | |
| Balehosur et al. | Packet-to-packet variation of flux density in a three-phase, three-limb power transformer core | |
| CN102735940A (en) | Three-phase transformer winding leakage reactance simplified measuring method | |
| CN201222093Y (en) | Test device for hydraulic generator stator core | |
| CN105738842B (en) | The device and method of measuring transformer iron core BH curves and Localized wear | |
| CN106653339A (en) | Current transformer | |
| CN103543338B (en) | The method of a kind of measuring transformer different joint form loss unshakable in one's determination | |
| CN103630746B (en) | A kind of measurement and assessment have the method for air gap magnetic cell winding AC resistance | |
| CN203535121U (en) | Device for measuring losses of different overlapping forms of transformer iron cores | |
| CN103854841A (en) | Error compensation method for current transformer capable of being accompanied by direct current | |
| CN105116357B (en) | Coil of strip DC magnetic device for measuring properties and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |