CN201845651U - Miniaturized electromagnetic voltage transformer - Google Patents
Miniaturized electromagnetic voltage transformer Download PDFInfo
- Publication number
- CN201845651U CN201845651U CN2010205456107U CN201020545610U CN201845651U CN 201845651 U CN201845651 U CN 201845651U CN 2010205456107 U CN2010205456107 U CN 2010205456107U CN 201020545610 U CN201020545610 U CN 201020545610U CN 201845651 U CN201845651 U CN 201845651U
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- China
- Prior art keywords
- iron core
- electromagnetic potential
- winding
- potential transformer
- miniaturization
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- 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.)
- Expired - Fee Related
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- 238000004804 winding Methods 0.000 claims abstract description 44
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 33
- 235000003283 Pachira macrocarpa Nutrition 0.000 claims description 10
- 241001083492 Trapa Species 0.000 claims description 10
- 235000014364 Trapa natans Nutrition 0.000 claims description 10
- 235000009165 saligot Nutrition 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000005350 ferromagnetic resonance Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 229960000909 sulfur hexafluoride Drugs 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Regulation Of General Use Transformers (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a miniaturized electromagnetic voltage transformer, which mainly comprises an iron core, a winding member and a shielding piece, wherein the winding member is mounted on the iron core; and the shielding piece wraps the winding member and has a structure matched with that of the winding member. By adopting the structure, the miniaturized electromagnetic voltage transformer is in a capacitive state and can not generate ferromagnetic resonance with a power network, thereby effectively improving the stability of the electromagnetic voltage transformer, guaranteeing reliable operation of the entire GIS (Global Information System) equipment, effectively reducing the volume, and ensuring the wide application of the miniaturized voltage transformer.
Description
Technical field
The utility model relates to a kind of instrument transformer, relates in particular to a kind of miniaturization electromagnetic potential transformer.
Background technology
Voltage transformer is the power plant, transmission of electricity that transformation waits, and the indispensable electrical equipment of electric power system electric energy metrical, its operation principle is similar with transformer principle, but the two purposes difference.Voltage transformer is the principle by mutual inductance, voltage in different size on the circuit in different ratios, the unified voltage equally that becomes, just can measure the voltage that lies prostrate up to several ten thousand with a kind of electric meter of voltage specification like this, and electric meter side and test line be that insulation is isolated, and guaranteed the safety of operating personnel and measuring instrument.
But present electromagnetic potential transformer mostly becomes inductive, when the electrical network parameter of this electromagnetic potential transformer connection changes, during as unidirectional ground connection, switching overvoltage and Lightning Over-voltage, ferro resonance taking place easily, causes damage of product and mains supply portion stable.In the electromagnetic potential transformer use, how to overcome the important topic that ferro resonance has become the electromagnetic potential transformer development.
Chinese patent: CN200720109344 electromagnetic potential transformer, it forms a capacitance plate by in its winding outside high voltage shield and other electronegative potential shielding part or housing being housed, thereby it becomes and a kind ofly is capacitive electromagnetic potential transformer, thereby effectively alleviates ferro resonance.But this technical scheme makes the instrument transformer structure become complicated, and has increased volume, has limited the use of this electromagnetic potential transformer.
The utility model content
The utility model provides a kind of miniaturization electromagnetic potential transformer, to overcome present prior art deficiency, solved electromagnetic potential transformer the ferro resonance problem has easily taken place, and a kind of miniaturization electromagnetic potential transformer of the utility model reasonably dwindled volume, and it is more extensive to make that the electromagnetic potential device uses.
A kind of miniaturization electromagnetic potential transformer of the utility model is achieved through the following technical solutions purpose:
A kind of miniaturization electromagnetic potential transformer, comprise the device body as core, wherein: described device body comprises iron core, coil assembly, shielding part, and described coil assembly is installed on the described iron core, described shielding part encases described coil assembly, and is complementary with the coil assembly structure.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described coil assembly comprises winding and secondary winding, a described winding is placed in described secondary winding periphery.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, a described winding is the disposable full-automatic Wound-rotor type element of winding, the coil of the automatic element of winding of described disposable automatic thread winding type is formed by a lead and the coiling of water chestnut lattice film.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described instrument transformer is provided with insulator, and described insulator is connected with a described winding.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described instrument transformer is provided with the voltage output end mouth, and described output port is fixedlyed connected with described secondary winding.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described iron core is made up of some rectangle silicon steel sheet stacks, and is hollow; Described coil assembly is placed in one side of described iron core.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described device body also comprises three barricades, described three barricades are fixed on the described iron core, are positioned at described iron core inboard, between other three limits of described iron core and described shielding part.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described iron core is fixedlyed connected with the base plate of the shell of described instrument transformer by folder.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, the shell lower end of described instrument transformer is provided with explosion-protection equipment.
Above-mentioned miniaturization electromagnetic potential transformer, wherein, described instrument transformer interior insulation gas filled, and described instrument transformer also be provided with charging valve.
Adopt a kind of its advantage of miniaturization electromagnetic potential transformer of the utility model to be:
1. a kind of miniaturization electromagnetic potential transformer of the utility model, its iron core is located at coil assembly inside, thereby and the external structure of having improved instrument transformer effectively reduced the volume of instrument transformer, it is more extensive to make that this miniaturization voltage instrument transformer uses.
2. a kind of miniaturization electromagnetic potential transformer of the utility model is capacitive character, not can with the electric capacity generation ferro resonance of electrical network, effectively improved the stability of electromagnetic potential transformer, guaranteed the reliability service of GIS integral device.
Description of drawings
Fig. 1 is the structural representation of a kind of miniaturization electromagnetic potential transformer of the utility model;
Fig. 2 is the structural representation of the disposable full-automatic Wound-rotor type element of winding.
Embodiment
As shown in Figure 1: a kind of miniaturization electromagnetic potential transformer, comprise device body 1 as core, described device body 1 inside is provided with iron core 3, coil assembly 2 and shielding part 4, and described iron core 3 is made up of some rectangle silicon steel sheet stacks, and is hollow.Described coil assembly 2 is installed on the described iron core 3, described shielding part 4 encases described coil assembly 2, and be complementary with described coil assembly 2 structures, be used to shield the electromagnetic current that energising described iron core 3 in back and described coil assembly 2 are produced, make the inner magnetic field that produces of described instrument transformer reach the most stable optimization effect simultaneously, and such structure makes described miniaturization electromagnetic potential transformer be the capacitive character state, not can with electrical network generation ferro resonance, effectively improve the stability of electromagnetic potential transformer, guaranteed the reliability service of GIS integral device.Described iron core 3 is fixedlyed connected with the base plate of described transformer casing by folder, is used for fixing described device body 1.As shown in FIG., described port type iron core 3 vertically is installed on the described device body 1, described coil assembly 2 is enclosed within on the horizontal edge of top of described iron core 3, described coil assembly 2 comprises winding 21 and secondary winding 22, a described winding 21 is placed in described secondary winding 22 peripheries, and described secondary winding 22 is enclosed within on the described iron core 3.The shell outside of described instrument transformer is provided with insulator 9, described insulator 9 is electrically connected with a described winding 21, described miniaturization electromagnetic potential transformer is provided with voltage output end mouth 5, described voltage output end mouth 5 is electrically connected with described secondary winding 22, and described output port inserts in the secondary connection box of instrument transformer.When energising is used, overvoltage by described insulator 9 with the voltage winding 21 of described output that leads, and by electromagnetic induction effect, electricity is converted into magnetic, and being passed to described iron core 3, described again iron core 3 is passed to described secondary winding 22, and magnetic is converted into, by described voltage output end mouth 5 outputs, and can carry out voltage tester.Described device body also comprises three barricades 8, and described three barricades 8 are fixed on the described iron core 3, is positioned at described iron core 3 inboards, between other three limits and described shielding part 4 of described iron core 3; Wherein two described barricades 8 lay respectively at described shielding part 4 both sides, and the described barricade of another piece is positioned at described shielding part 4 belows, are used for the electromagnetic current that the iron core in described coil assembly 2 of further shielding and the described coil assembly 2 produces.
As shown in Figure 2, a described winding is the disposable full-automatic Wound-rotor type element of winding, the coil of the automatic element of winding of described disposable automatic thread winding type is formed by a lead and the coiling of water chestnut lattice film, comprise reel 11, coil 12 and water chestnut lattice film 14, described coil 12 twines 11 one-tenth a plurality of wire turns of described line tube by a lead, and be arranged in one deck turn layers 13, on described turn layers 13, cover several layers water chestnut lattice film 14, afterwards on water chestnut lattice film 14 around one deck turn layers 13, repeat said process, until finishing desired winding.The number of plies of the water chestnut lattice film 14 that described each layer turn layers is 13 all is not quite similar, and the overvoltage that the number of plies of the turn layers 13 of winding and the water chestnut lattice film 4 between each turn layers has winding to bear calculates.Described reel 11 is made by insulating material.The number of plies of the turn layers 13 at the described two ends on the described reel 11 makes described reel 11 two ends increase progressively to the number of plies of middle water chestnut lattice film 14 less than the number of plies of the turn layers 13 of centre, and described coil 12 is the shuttle type.Such structure can improve the stability of the element of winding greatly.As shown in Figure 1, described instrument transformer also is provided with explosion-protection equipment 10, and described explosion-protection equipment is located at the lower end of described instrument transformer.Effectively reduce the volume of described instrument transformer like this, it is more convenient that described miniaturization electromagnetic potential transformer is installed, thereby make that the described miniaturization electromagnetic potential transformer scope of application is wider.Described miniaturization electromagnetic potential transformer also is provided with charging valve 11, is used for filling specified air pressure insulating gas in described miniaturization electromagnetic potential transformer, and as the main insulation medium, the general employed insulating gas of stating all is a sulfur hexafluoride gas.The water chestnut lattice film 4 that is provided with in the winding coil of described coil assembly 2 claims the air film insulation again with the complex media insulation of sulphur hexafluoride insulating gas, even make the product partial discharge quantity below 5pC, no dielectric loss problem, make the work of described miniaturization electromagnetic potential transformer more stable, performance is more excellent.
Will be appreciated that; the above embodiments are only as exemplifying and propose preferred embodiment of the present utility model; the utility model also not only is confined to this, and the various simple modifications that those skilled in the art can implement also should fall in the protection range of the present utility model.
Claims (10)
1. miniaturization electromagnetic potential transformer, comprise the device body as core, it is characterized in that: described device body comprises iron core, coil assembly, shielding part, and described coil assembly is installed on the described iron core, described shielding part encases described coil assembly, and is complementary with the coil assembly structure.
2. miniaturization electromagnetic potential transformer according to claim 1 is characterized in that, described coil assembly comprises winding and secondary winding, and a described winding is placed in described secondary winding periphery.
3. miniaturization electromagnetic potential transformer according to claim 2, it is characterized in that, a described winding is the disposable full-automatic Wound-rotor type element of winding, and the coil of the automatic element of winding of described disposable automatic thread winding type is formed by a lead and the coiling of water chestnut lattice film.
4. miniaturization electromagnetic potential transformer according to claim 3 is characterized in that described instrument transformer is provided with insulator, and described insulator is connected with a described winding.
5. miniaturization electromagnetic potential transformer according to claim 4 is characterized in that described instrument transformer is provided with the voltage output end mouth, and described output port is fixedlyed connected with described secondary winding.
6. miniaturization electromagnetic potential transformer according to claim 1 is characterized in that, described iron core is made up of some rectangle silicon steel sheet stacks, and is hollow; Described coil assembly is placed in one side of described iron core.
7. miniaturization electromagnetic potential transformer according to claim 1, it is characterized in that described device body also comprises three barricades, described three barricades are fixed on the described iron core, be positioned at described iron core inboard, between other three limits of described iron core and described shielding part.
8. miniaturization electromagnetic potential transformer according to claim 1 is characterized in that, described iron core is fixedlyed connected with the base plate of the shell of described instrument transformer by folder.
9. miniaturization electromagnetic potential transformer according to claim 1 is characterized in that, the shell lower end of described instrument transformer is provided with explosion-protection equipment.
10. miniaturization electromagnetic potential transformer according to claim 1 is characterized in that, described instrument transformer interior insulation gas filled, and described instrument transformer also is provided with charging valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205456107U CN201845651U (en) | 2010-09-28 | 2010-09-28 | Miniaturized electromagnetic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205456107U CN201845651U (en) | 2010-09-28 | 2010-09-28 | Miniaturized electromagnetic voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845651U true CN201845651U (en) | 2011-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205456107U Expired - Fee Related CN201845651U (en) | 2010-09-28 | 2010-09-28 | Miniaturized electromagnetic voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
| CN115036115A (en) * | 2022-06-23 | 2022-09-09 | 阿塔其大一互电器有限公司 | Body unit and electromagnetic voltage transformer |
-
2010
- 2010-09-28 CN CN2010205456107U patent/CN201845651U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376430A (en) * | 2011-11-08 | 2012-03-14 | 中国西电电气股份有限公司 | High-volage coil of voltage mutual inductor and production method thereof |
| CN115036115A (en) * | 2022-06-23 | 2022-09-09 | 阿塔其大一互电器有限公司 | Body unit and electromagnetic voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20170928 |