CN207338099U - Exceed loading capability transformer - Google Patents
Exceed loading capability transformer Download PDFInfo
- Publication number
- CN207338099U CN207338099U CN201721143392.2U CN201721143392U CN207338099U CN 207338099 U CN207338099 U CN 207338099U CN 201721143392 U CN201721143392 U CN 201721143392U CN 207338099 U CN207338099 U CN 207338099U
- Authority
- CN
- China
- Prior art keywords
- winding
- voltage winding
- transformer
- voltage
- iron core
- 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
- Coils Of Transformers For General Uses (AREA)
Abstract
It the utility model is related to field transformer, exceed loading capability transformer more particularly to one kind, including iron core, the iron core is three-phase three-limb structure, five windings are cased with per column, tap-changing windings are followed successively by from inside to outside, low pressure winding, high-voltage winding, second low pressure winding, second tap-changing windings, high-voltage winding includes axially disposed upper high-voltage winding and lower high-voltage winding, transformer is equipped with series parallel switch and load ratio bridging switch, the disengaging lead of upper high-voltage winding and lower high-voltage winding is connected on series parallel switch, the shunting tap of upper high-voltage winding and lower high-voltage winding is connected on load ratio bridging switch.The utility model realizes the on-load voltage regulation of device by the conversion of series parallel switch, can be used for 1OKV distribution systems, can be used for 20KV distribution systems；Load ratio bridging switch is used for Chi line adjustment voltage deviation, it is ensured that quality of voltage and reduction equipment breakdown, improve the reliability of power supply.
Description
Technical field：
It the utility model is related to field transformer, and in particular to one kind exceeds loading capability transformer.
Background technology：
Transformer is the device for changing alternating voltage using the principle of electromagnetic induction, and main member is primary coil, secondary
Level coil and iron core (magnetic core).Major function has：Voltage transformation, current transformation, impedance conversion, isolation, voltage stabilizing (magnetic saturation transformation
Device) etc..It can be divided into, according to use,：Power transformer and special transformer (electric furnace change, rectification change, power frequency testing transformer, pressure regulation
Device, mining change, audio-frequency transformer, intermediate-frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer,
Reactor, mutual inductor etc.).
With the construction of national urbanization, power load is sharply increasing, and 1OKV distribution voltages have been unable to meet electricity consumption
Demand.And can increase conveying capacity by improving distribution voltage class, expand supply district, reduce network loss, improve electric network composition, be
One of effective way of power quality is improved, so country starts to promote 20KV distribution networks in recent years.But existing matches somebody with somebody cable
Road is 1OKV mostly, and newly-built 20KV distribution network systems have resulted in very big waste for 1OKV distribution network systems.Additionally, due to
The method of operation is ever-changing in electric system, and each node voltage is different, and requirement of the user to voltage is also different.Need to research and develop
One kind can be used for 1OKV distribution systems, can be used for the transformer of 20KV distribution systems.
Utility model content：
The technical problem to be solved by the utility model is to overcome existing technological deficiency, there is provided one kind exceeds loading capability
Transformer.
Technical problem to be solved in the utility model is realized using following technical solution：
One kind exceeds loading capability transformer, including iron core, and the iron core is three-phase three-limb structure, and five are cased with every column
Winding, is followed successively by tap-changing windings, low pressure winding, high-voltage winding, the second low pressure winding, the second tap-changing windings, high pressure from inside to outside
Winding includes axially disposed upper high-voltage winding and lower high-voltage winding, and transformer is equipped with series parallel switch and loaded tap-off is opened
Close, the disengaging lead of upper high-voltage winding and lower high-voltage winding is connected on series parallel switch, upper high-voltage winding and lower high pressure
The shunting tap of winding is connected on load ratio bridging switch.
Further, the iron core is formed by stacking by cold-reduced silicon sheet, its cross section gradually subtracts in middle wide, both ends width
Small ledge structure and both ends is symmetrical, and the line on each stage rank vertex is circular in one, winding fit closely each stage rank vertex around
System is on iron core.
Further, the thickness of the silicon steel sheet is 0.27mm.
The beneficial effects of the utility model are：The on-load voltage regulation of device is realized by the conversion of series parallel switch, can
For 1OKV distribution systems, 20KV distribution systems are can be used for；Load ratio bridging switch is used for Chi line adjustment voltage deviation, it is ensured that
Quality of voltage and reduction equipment breakdown, improve the reliability of power supply.
Brief description of the drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the single coiling iron core winding construction schematic diagram of the utility model；
Fig. 3 is the utility model iron core and winding separated structure schematic diagram；
Fig. 4 is the structure diagram of the utility model coiling iron core tap-changing windings.
Embodiment：
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
In the description of the utility model, it is necessary to explanation, the side of the instruction such as term " vertical ", " on ", " under ", " level "
Either position relationship is based on orientation shown in the drawings or position relationship for position, is for only for ease of this practicality of description and simplification is retouched
State, rather than instruction either implies that signified device or element must have specific orientation, with specific azimuth configuration with
Operation, therefore it is not intended that limitation to the utility model.In addition, " first ", " second ", " the 3rd ", " the 4th " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance.
In the description of the utility model, it is also necessary to which explanation, " sets unless otherwise clear and definite regulation and limitation, term
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or be integrally connected, can mechanically connect or be electrically connected, can be directly connected to or by middle matchmaker
It is situated between and is connected, can is the connection inside two elements.For the ordinary skill in the art, can be as the case may be
Understand concrete meaning of the above-mentioned term in the utility model.
Embodiment one
As shown in attached drawing 1,2,3,4, one kind exceeds loading capability transformer, including iron core 1, and iron core 1 is three-phase three-limb knot
Structure, per five windings are cased with column, be followed successively by from inside to outside tap-changing windings 2, low pressure winding 3, high-voltage winding 4, the second low pressure around
The 5, second tap-changing windings 6 of group, high-voltage winding 4 include axially disposed upper high-voltage winding 41 and lower high-voltage winding 42, transformer
It is equipped with series parallel switch 7 and load ratio bridging switch 8, the disengaging lead of upper high-voltage winding 41 and lower high-voltage winding 42 connects respectively
On series parallel switch 7, the shunting tap of upper high-voltage winding 41 and lower high-voltage winding 42 is connected to load ratio bridging switch 8
On.
The on-load voltage regulation of device is realized by the conversion of series parallel switch, 1OKV distribution systems can be used for, can also be used
In 20KV distribution systems；Load ratio bridging switch is used for Chi line adjustment voltage deviation, it is ensured that quality of voltage and reduction equipment breakdown,
Improve the reliability of power supply.
The present apparatus can be operated in 1OKV or 20KV, fully meet current 1OKV power supplies, plan the area of 20KV power supplies in the future
Demand, without needing to change transformer or transformer being changed, the transformer of the present apparatus is adaptable.
Iron core 1 is formed by stacking by cold-reduced silicon sheet, the ledge structure that its cross section is gradually reduced in middle wide, both ends width
And both ends are symmetrical, the exponent number of step is not less than three ranks, no more than seven ranks, and the line on each stage rank vertex is circular in one, and winding is tight
Closely connected each stage rank vertex of conjunction is wound on iron core.The line on each stage rank vertex of 1 cross section of iron core is circular in one, its section
Coefficient higher, this core construction help to reduce leakage field, and winding coiling directly on iron core, the utility model is due to reducing
Leakage field, can reduce transformer loss, save the energy, reduce transformer production cost, greatly improve the reliability of transformer.
Embodiment two
As shown in attached drawing 1,2,3,4, as another embodiment of the utility model, one kind exceeds loading capability transformer, bag
Iron core 1 is included, iron core 1 is three-phase three-limb structure, is cased with five windings on every column, is followed successively by tap-changing windings 2, low pressure from inside to outside
Winding 3, high-voltage winding 4, the second low pressure winding 5, the second tap-changing windings 6, high-voltage winding 4 include axially disposed upper high voltage winding
Group 41 and lower high-voltage winding 42, transformer are equipped with series parallel switch 7 and load ratio bridging switch 8, upper high-voltage winding 41 and lower height
The disengaging lead of pressure winding 42 is connected on series parallel switch 7, and the tap of upper high-voltage winding 41 and lower high-voltage winding 42 is taken out
Head is connected on load ratio bridging switch 8.
The on-load voltage regulation of device is realized by the conversion of series parallel switch, 1OKV distribution systems can be used for, can also be used
In 20KV distribution systems；Load ratio bridging switch is used for Chi line adjustment voltage deviation, it is ensured that quality of voltage and reduction equipment breakdown,
Improve the reliability of power supply.
The present apparatus can be operated in 1OKV or 20KV, fully meet current 1OKV power supplies, plan the area of 20KV power supplies in the future
Demand, without needing to change transformer or transformer being changed, the transformer of the present apparatus is adaptable.
Iron core 1 is formed by stacking by cold-reduced silicon sheet, the ledge structure that its cross section is gradually reduced in middle wide, both ends width
And both ends are symmetrical, the exponent number of step is not less than three ranks, no more than seven ranks, and the line on each stage rank vertex is circular in one, and winding is tight
Closely connected each stage rank vertex of conjunction is wound on iron core.The line on each stage rank vertex of 1 cross section of iron core is circular in one, its section
Coefficient higher, this core construction help to reduce leakage field, and winding coiling directly on iron core, the utility model is due to reducing
Leakage field, can reduce transformer loss, save the energy, reduce transformer production cost, greatly improve the reliability of transformer.
The thickness of silicon steel sheet is 0.27mm.The reasonable selection of silicon steel sheet thickness reduces unit no-load loss.
The advantages of basic principle and main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply illustrate the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed scope is defined by the appending claims and its equivalent thereof.
Claims (3)
1. one kind exceeds loading capability transformer, it is characterised in that including iron core, the iron core is three-phase three-limb structure, per column
On be cased with five windings, be followed successively by tap-changing windings, low pressure winding, high-voltage winding, the second low pressure winding, the second pressure regulation from inside to outside
Winding, high-voltage winding include axially disposed upper high-voltage winding and lower high-voltage winding, transformer be equipped with series parallel switch and
The disengaging lead of load ratio bridging switch, upper high-voltage winding and lower high-voltage winding is connected on series parallel switch, upper high voltage winding
The shunting tap of group and lower high-voltage winding is connected on load ratio bridging switch.
2. according to claim 1 exceed loading capability transformer, it is characterised in that the iron core is superimposed by cold-reduced silicon sheet
Form, its cross section is in the ledge structure that middle wide, both ends width is gradually reduced and both ends are symmetrical, the line on each stage rank vertex
Circular in one, winding fits closely each stage rank vertex and is wound on iron core.
3. according to claim 2 exceed loading capability transformer, it is characterised in that the thickness of the silicon steel sheet is
0.27mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143392.2U CN207338099U (en) | 2017-09-07 | 2017-09-07 | Exceed loading capability transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143392.2U CN207338099U (en) | 2017-09-07 | 2017-09-07 | Exceed loading capability transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207338099U true CN207338099U (en) | 2018-05-08 |
Family
ID=62372464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721143392.2U Active CN207338099U (en) | 2017-09-07 | 2017-09-07 | Exceed loading capability transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207338099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296020A (en) * | 2021-11-23 | 2022-04-08 | 国网河北省电力有限公司电力科学研究院 | Fault simulation device and method for capacitor voltage transformer |
-
2017
- 2017-09-07 CN CN201721143392.2U patent/CN207338099U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296020A (en) * | 2021-11-23 | 2022-04-08 | 国网河北省电力有限公司电力科学研究院 | Fault simulation device and method for capacitor voltage transformer |
| CN114296020B (en) * | 2021-11-23 | 2024-04-16 | 国网河北省电力有限公司电力科学研究院 | Fault simulation device and simulation method for capacitive voltage transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103094912B (en) | A kind of implementation method of 750kV controllable magnetic control shunt reactor excitation system | |
| CN102035361B (en) | Voltage regulation device | |
| CN207338099U (en) | Exceed loading capability transformer | |
| CN102420046A (en) | Double-voltage transformer | |
| CN104752042A (en) | Clearance iron core reactor with load switch or no-load switch and adjusting method thereof | |
| CN103730240A (en) | Variable-flux voltage regulating auto transformer for maintaining constant low voltage | |
| CN109346301A (en) | A kind of balancing transformer and its method of supplying power to based on the type of falling A wiring | |
| CN205828118U (en) | A kind of distribution transformer | |
| CN203325665U (en) | Frequency-conversion phase-shift rectifier transformer | |
| CN202332478U (en) | Dual-voltage transformer | |
| CN204810154U (en) | Four posts three -phase compensation formula low pressure voltage regulator unshakable in one's determination | |
| CN210956421U (en) | Scott magnetic regulating transformer for glass ball production process | |
| CN209461278U (en) | The Vv of variable flux voltage variation (VFVV) connects tractive transformer | |
| CN209266161U (en) | Transformer and its high-impedance transformer winding arrangement structure | |
| CN209297901U (en) | A kind of tractive transformer | |
| CN207367754U (en) | A tractor serves several purposes dry-type transformer | |
| CN201869105U (en) | Voltage regulator | |
| CN202758722U (en) | Three-phase on load tap changing transformer | |
| CN206657711U (en) | A kind of band 380V assists winding photovoltaic generation dry-type transformers | |
| CN206194521U (en) | Direct current electric stove is with directly falling 54 pulse wave rectifier transformer of formula | |
| CN207200286U (en) | Auto-transformer adjusts the compensation device of reactive capability | |
| CN206595119U (en) | The common fuel tank of four-in-one | |
| CN110932302A (en) | Low-voltage distribution energy storage system | |
| CN2857175Y (en) | Neutral auto-transformer having constant third side voltage | |
| CN102543400A (en) | Low-voltage regulation coil device of traction transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |