CN109637790A - The oval omnipotent group on-load regulator transformer of class - Google Patents
The oval omnipotent group on-load regulator transformer of class Download PDFInfo
- Publication number
- CN109637790A CN109637790A CN201811611959.3A CN201811611959A CN109637790A CN 109637790 A CN109637790 A CN 109637790A CN 201811611959 A CN201811611959 A CN 201811611959A CN 109637790 A CN109637790 A CN 109637790A
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- transformer
- iron core
- winding
- oval
- class
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- 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
- H01F27/30—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F29/00—Variable transformers or inductances not covered by group H01F21/00
- H01F29/02—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings
- H01F29/04—Variable transformers or inductances not covered by group H01F21/00 with tappings on coil or winding; with provision for rearrangement or interconnection of windings having provision for tap-changing without interrupting the load current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The oval omnipotent group on-load regulator transformer of one type, secondary winding covers on iron core, first winding covers in secondary winding, constitute body, body cross section is in the elliptical shape of class, class ellipse is that two symmetrical circular arcs on long axis on two symmetrical circular arcs and short axle pass through four sections of straight lines tangent shape being formed by connecting two-by-two, iron core is parallel to each other for multistage lamination and successively stacks composition, the section of every grade of lamination is in rectangle, iron core global sections are at multistage step, the external class ellipse of iron core is circular arc and straight line smooth transition, the external class of its first winding internal via shape and iron core is oval consistent, secondary winding internal via shape is consistent with first winding peripheral shape.The invention has the advantages that Circuit Fault on Secondary Transformer had not only been able to achieve the leggy connecting group grade of corner connection, but also it is able to achieve the connecting group grade that star connects leggy, is able to achieve a variety of phase output functions using a transformer.
Description
Technical field
The present invention relates to transformer technology field, the oval omnipotent group on-load regulator transformer of a specially type.
Background technique
With the fast development of electric railway, the requirement to transformer is higher and higher, it is desirable that transformer not only resistance to shorting
Ability is eager to excel, and has special requirement to transformer in certain special occasions, such as require transformer in certain special occasions
In case of constant power can be with pressure regulation, and secondary side had not only been able to achieve the output function of the leggy connecting group grade of corner connection, but also
It is able to achieve the output that star connects leggy connecting group grade, i.e. there are many functions of phase output for a transformer.
Summary of the invention
That in order to compensate for the shortcomings of the prior art, the present invention provides a kind of structures is simple, class ellipse easy to use is omnipotent
Group on-load regulator transformer solves certain special occasions requirement transformers and has asking for a variety of connecting group grades and phase output
Topic.
The present invention is achieved through the following technical solutions:
The oval omnipotent group on-load regulator transformer of one type, secondary winding cover on iron core, and first winding is covered in secondary winding
On, constitute body, it is characterised in that: body cross section is in the elliptical shape of class, and class ellipse is two symmetrical circular arcs on long axis
By four sections of straight lines, the tangent shape being formed by connecting, iron core are multistage lamination phase two-by-two with two symmetrical circular arcs in short axle
Mutually successively stack compositions in parallel, the section of every grade of lamination is in rectangle, iron core global sections at multistage step, iron core outside
Connecing class ellipse is that circular arc and straight line seamlessly transit, and the external class of first winding internal via shape and iron core is oval consistent, secondary
Winding internal via shape is consistent with first winding peripheral shape.
The laminar winding that first and second winding is all made of, first winding star-like connection, secondary winding be both able to achieve triangle company
Star-like connection is connect and is able to achieve, the phase voltage of the triangle connection of secondary winding is equal to line voltage, and the line voltage of star-like connection is
Phase voltageTimes, a variety of phase output functions are able to achieve using a transformer.
First winding connects on-load voltage regulating switch and carries out pressure regulation, and on-load voltage regulating switch is furnished with voltage regulator controllers, makes transformer
It just can be carried out pressure regulation in case of constant power.
The iron yoke cross section of iron core is D-shaped.
Iron core upper and lower ends install folder, and mandrel lower has footing piece, and feet insulation plays insulation between iron core and feet
Effect, feet cushion block pad live every grade of iron core, penetrate footing piece, feet insulation, feet cushion block and lower clamping piece by bolt and are fixed on
Together, iron core is held；On iron core, the pressing plate of the pressing plate of end, middle part is put between coil and folder mounting coil, draws screw rod
Across upper clamping piece, lower clamping piece and upper lower platen vertically compress coil；Other screw rod crosses between two folders, and iron core is passed through folder
Part horizontal clamping makes body each section assemble consolidation, guarantees transformer by drawing screw rod and other screw rod to fasten iron core and winding
Safe operation.
It is provided with stream oil groove on one side close to winding on pressing plate.
Platform sling is welded on upper clamping piece, and angle bar is welded on case lid, and platform sling and angle bar are connected with, and body and case lid are fixed
Together, 4 locating pins are welded in bottom, are provided with circular hole on footing piece, the circular hole on footing piece is covered in locating pin, that is, is passed through
Body is positioned and is fixed by locating pin, is firmly fixed on body in fuel tank by case lid and bottom.
Transformer top is equipped with conservator, and conservator connects oil tank of transformer by pipeline.
This segment space that oil tank of transformer is located at loaded switch lower part is removed, is reinforced in the outside welding for removing space
Iron, reinforces the rectangular triangle of iron, and two right-angle sides are welded together with oil tank wall.
It is welded with corrugated plate on the outside of oil tank of transformer, the heat dissipation of fuel tank internal is gone out by corrugated plate.
The invention has the advantages that
1, the body cross section of the oval omnipotent group on-load regulator transformer of class is in the elliptical shape of class, tight around the coil produced
It is real, winding mechanical strength is effectively increased, the anti-short circuit capability of transformer is improved, reduces transformer cost, is improved reliable
Property.
2, Circuit Fault on Secondary Transformer had not only been able to achieve the leggy connecting group grade of corner connection, but also was able to achieve the connection group that star connects leggy
Not, a variety of phase output functions are able to achieve using a transformer.Solve certain special occasions requirement transformers have it is a variety of
The requirement of connecting group grade and phase output.
3, transformer primary side uses on-load voltage regulating switch pressure regulation, and on-load voltage regulating switch is furnished with voltage regulator controllers, makes transformation
Device can be carried out pressure regulation in case of constant power, and transformer regulating is safe and reliable.
Detailed description of the invention
Attached drawing is front view schematic diagram of the invention.
Fig. 1 is winding layout drawing, and Fig. 2 class ellipse iron core sectional schematic diagram, Fig. 3 body front view, switch body is not added in Fig. 4
Left view, Fig. 5, which is increased, closes body top view, and Fig. 6, Fig. 7 are successively main view, the bottom view of the pressing plate 10 of end, Fig. 8, Fig. 9 according to
Secondary is main view, the bottom view of the pressing plate 12 at middle part, and Figure 10 is bottom schematic diagram, and Figure 11 is high-voltage connection signal drawing, Figure 12
It is secondary side delta connection line schematic diagram, Figure 13 is secondary side star connection line schematic diagram, and Figure 14 is transformer shape
Figure.
1 platform sling, 2 angle bar, 3 bolts, 4 iron cores, 5 upper clamping pieces, 6 lower clamping pieces, the insulation of 7 feets, 8 feet cushion blocks, 9 footing pieces,
10 pressing plates, 11 side screw rods, 12 pressing plates, 13 drawing screw rods, 14 transformer coils, 15 loaded switch, 16 locating pins, 17 casings, 18 1
The secondary first head lead in side, 19 wooden piece, 20 high-voltage tap leads, 21 installation for transformer, 22 oil tank of transformer, 23 corrugated plates, 24 reinforce
Iron, 25 case lids, 26 bottoms, 27 stream oil grooves.
Specific embodiment
Attached drawing is a kind of specific embodiment of the invention.
The oval omnipotent group on-load regulator transformer of one type, secondary winding cover on iron core, and first winding is covered secondary
On winding, constitute body, body cross section is in the elliptical shape of class, class ellipse be on long axis two symmetrical circular arcs in short axle
Two symmetrical circular arcs by four sections of straight lines tangent shape being formed by connecting two-by-two, iron core be multistage lamination be parallel to each other according to
Secondary to stack composition, the section of every grade of lamination is in rectangle, and for iron core global sections at multistage step, the external class of iron core is oval
It is that circular arc and straight line seamlessly transit, the external class of first winding internal via shape and iron core is oval consistent, secondary winding inner hole
Shape is consistent with first winding peripheral shape.
The laminar winding that first and second winding is all made of, first winding star-like connection, secondary winding be both able to achieve triangle company
Star-like connection is connect and is able to achieve, the phase voltage of the triangle connection of secondary winding is equal to line voltage, and the line voltage of star-like connection is
Phase voltageTimes, a variety of phase output functions are able to achieve using a transformer.
First winding connects on-load voltage regulating switch and carries out pressure regulation, and on-load voltage regulating switch is furnished with voltage regulator controllers, makes transformer
It just can be carried out pressure regulation in case of constant power.
The iron yoke cross section of iron core is D-shaped.
Iron core upper and lower ends install folder, and mandrel lower has footing piece 9, and feet insulation 7 rises absolutely between iron core and feet
Edge effect, feet cushion block 8 pad every grade of iron core, penetrate footing piece 9, feet insulation 7, feet cushion block 8 and lower clamping piece 6 by bolt
It is fixed together, holds iron core.Coil 14 is sleeved on iron core, the pressing plate 10 of end, and the pressing plate 12 at middle part is put in coil and folder
Between part, screw rod 13 is drawn to pass through upper clamping piece 5, lower clamping piece 6 and upper lower platen vertically compress coil.Other screw rod 11 is crossed in two folders
Between part, keep body each by drawing screw rod 13 and other screw rod 11 to fasten iron core and winding by folder horizontal clamping iron core
Part assembly consolidation, guarantees the safe operation of transformer.
It is provided with stream oil groove 27 on one side close to winding on pressing plate.
Platform sling 1 is welded on upper clamping piece 5, and angle bar 2 is welded on case lid 25, and platform sling 1 and angle bar 2 are connected with bolt 3, by body and
Case lid is fixed together, and 4 locating pins 16 are welded in bottom 26, circular hole is provided on footing piece 9, the circular hole on footing piece 9 is covered
In locating pin 16, i.e., body is positioned by locating pin and fixed, be firmly fixed on body in fuel tank by case lid and bottom.
Transformer top is equipped with conservator 21, and conservator connects oil tank of transformer 22 by pipeline.
This segment space that oil tank of transformer is located at loaded switch lower part is removed, is reinforced in the outside welding for removing space
Iron 24, reinforces the rectangular triangle of iron, and two right-angle sides are welded together with Xiang Bi.
It is welded with corrugated plate 23 on the outside of oil tank of transformer, the heat dissipation of fuel tank internal is gone out by corrugated plate.
In order to facilitate outlet, the one of transformer, the laminar winding that secondary winding is all made of, the delta connection of secondary winding
Phase voltage be equal to line voltage, the line voltage of star connection is phase voltageTimes, thus the number of turns of delta connection than
The number of turns of star connection is more, so the entire winding of star connection can regard a part of delta windings as.Winding arrangement
Figure is as shown in Figure 1 as shown in Figure 1, the common portion of star winding and delta windings to be disposed adjacent to the position of main empty path
Coils arrangement sequence, the winding ax2 (by2, cz2) when winding ax1 (by1, cz1) is secondary side delta connection is secondary side star
Winding when shape connection, AX (BY, CZ) are first side winding.
According to omnipotent group of other requirement, primary side star is connect, and envelope star lead is connected in fuel tank internal, and 3 first head leads are drawn,
Secondary side not only may be implemented delta connection but also star connection may be implemented, so all Winding taps of secondary side are drawn, often
Each winding 3 is lifted one's head, and three-phase is lifted one's head for 9 totally, along with first winding totally 12 lift one's head, 12 casings being connected on case lid.
Primary side tap lead is led to on-load voltage regulating switch, realizes pressure regulation of transferring the files by switching.Secondary side is then carried out according to customer demand
Wiring is realized outside fuel tank.
9 gone out in secondary winding as shown in Fig. 1 lift one's head a (b, c), x1(y1, z1), x2(y2, z2) it is led to case respectively
It covers in corresponding casing, connects a with z1 with copper bar if user needs corner connection to export, b is connected with x1 with copper bar, and c and y1 are used
X2, y2, z2 as shown in figure 12, are connected realization star with copper bar and connect by copper bar connection as user needs star to connect output copper bar, and two kinds
Connection is operated on the casing on case lid, simple to operate.It is corresponding that 3 first A (B, C) of first winding guide to case lid
On casing, as shown in Figure 11 high-voltage connection schematic diagram, three-phase tap lead is guided on 15 on-load voltage regulating switch, and tap lead passes through
19 wooden piece are fixed.
First winding connects power supply, and secondary winding is output voltage.
1, the oval omnipotent group on-load regulator transformer of class, body cross section is in the elliptical shape of class, and the class is oval
It is that two symmetrical circular arcs are formed by connecting with two symmetrical circular arcs in short axle by the way that four sections of straight lines are tangent two-by-two on long axis
Shape, iron core are that multistage lamination successively stacks composition, and the section of every grade of lamination is in rectangle, and iron core global sections are at multistage
Step type, characteristic be, the external class ellipse of iron core is circular arc and straight line smooth transition, winding mould shape and iron core
External class is oval consistent, and high-low pressure winding is wound on the elliptical mold of class, and line is wound on mold very docile, around the coil ratio produced
Compare consolidation, class ellipse machine body structure is effectively increased winding mechanical strength compared with oval machine body structure, improves transformation
The anti-short circuit capability of device, improving reliability reduces transformer cost compared with round machine body structure.
2, it is bigger with the contact area of coil with the pressing plate 10,12 of crimping circle on body, be conducive to the fixation of body, prevent
Only winding damages coil because of axially loaded.It is all provided with stream oil groove 27 on pressing plate, as shown in Fig. 6-Fig. 9, is conducive to the circulation of oil,
And then come out the heat inside winding by oil circulation, be not in the generation of winding superheating phenomenon, make in winding
Insulating part reduces aging speed, and then extends the service life of transformer.
3, the phase voltage of the delta connection of secondary winding is equal to line voltage, and the line voltage of star connection is phase voltageTimes, so the number of turns of delta connection is more than the number of turns of star connection, so the entire winding of star connection can be with
Regard a part of delta windings as, i.e. there are three lifting one's head to draw as shown in Fig. 1, three-phase shares 9 lifts one's head and draw secondary winding
The casing on case lid is caused, realizes that star connects or the line of corner connection other than fuel tank, it is simple to operate.Realize that time side is both able to achieve angle
The output function of the leggy connecting group grade connect, and be able to achieve the output that star connects leggy connecting group grade, i.e., a transformer has
The function of a variety of phase outputs.
4, the load ratio bridging switch that primary side uses, loaded switch is furnished with controller, is connected by aviation plug with switch,
Controller is placed in control room, i.e., in the case where transformer does not power off, can be transferred the files tune in control room by controller
Pressure, operates fairly simple safety.
5, fuel tank beveling at loaded switch.Due to fuel tank depth, loaded switch is smaller, has from switch bottom to bottom very big
Space, the extra space in this part can fill many transformer oil, so in the case where guaranteeing peace distance, by oil tank of transformer
This segment space positioned at loaded switch lower part removes, and reduces transformer oil, mitigates transformer overall weight, not only saves
Manufacturing cost, also reduces freight charges.Reinforce iron 24 in the outside welding for removing space, guarantees the mechanical strength of fuel tank.
6, transformer is furnished with conservator.According to thermal expansion and contraction principle, extra transformer oil enters oil when in day, hot oil rises
In pillow, it is therefore prevented that oil spill goes out, and in transformer oil starvation, the transformer oil of conservator storage is mended into fuel tank, plays transformer station high-voltage side bus
Carry out more secure and reliable.
7, it is welded with corrugated plate 23 on the outside of oil tank of transformer, the heat dissipation of fuel tank internal is gone out by corrugated plate.
Claims (10)
1. the oval omnipotent group on-load regulator transformer of a type, secondary winding cover on iron core, first winding cover it is secondary around
In group, body is constituted, it is characterised in that: body cross section is in the elliptical shape of class, and class ellipse is two symmetrical circles on long axis
By four sections of straight lines, the tangent shape being formed by connecting, iron core are multistage lamination to two symmetrical circular arcs on arc and short axle two-by-two
Be parallel to each other and successively stack composition, the section of every grade of lamination is in rectangle, iron core global sections at multistage step, iron core
External class ellipse is that circular arc and straight line seamlessly transit, and the external class of first winding internal via shape and iron core is oval consistent, two
Secondary winding internal via shape is consistent with first winding peripheral shape.
2. the oval omnipotent group on-load regulator transformer of class according to claim 1, it is characterised in that: first and second winding
The laminar winding being all made of, first winding star-like connection, secondary winding be not only able to achieve triangle connection but also be able to achieve star-like connection,
The phase voltage of the triangle connection of secondary winding is equal to line voltage, and the line voltage of star-like connection is phase voltageTimes, it uses
One transformer is able to achieve a variety of phase output functions.
3. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: first winding
It connects on-load voltage regulating switch and carries out pressure regulation, on-load voltage regulating switch is furnished with voltage regulator controllers, makes transformer in case of constant power
It just can be carried out pressure regulation.
4. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: the iron of iron core
Yoke cross section is D-shaped.
5. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: above and below iron core
Folder is installed at both ends, and mandrel lower has footing piece, and feet insulation plays insulating effect between iron core and feet, and feet cushion block pad is lived
Every grade of iron core penetrates footing piece, feet insulation, feet cushion block and lower clamping piece by bolt and is fixed together, holds iron core；Coil
It is sleeved on iron core, the pressing plate of the pressing plate of end, middle part is put between coil and folder, and screw rod is drawn to pass through upper clamping piece, lower clamping piece
And upper lower platen vertically compresses coil；Other screw rod crosses between two folders, by iron core by folder horizontal clamping, passes through drawing
Screw rod and other screw rod fasten iron core and winding, so that body each section is assembled consolidation, guarantee the safe operation of transformer.
6. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: leaned on pressing plate
Nearly winding is provided with stream oil groove on one side.
7. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: platform sling is welded in
On upper clamping piece, angle bar is welded on case lid, and platform sling and angle bar are connected with, and body and case lid are fixed together, and 4 are welded in bottom
A locating pin is provided with circular hole on footing piece, the circular hole on footing piece is covered in locating pin, i.e., is positioned body by locating pin
It is fixed, body is firmly fixed in fuel tank by case lid and bottom.
8. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: transformer top
Portion is equipped with conservator, and conservator connects oil tank of transformer by pipeline.
9. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: by transformer
This segment space that fuel tank is located at loaded switch lower part removes, and reinforces iron in the outside welding for removing space, it is rectangular to reinforce iron
Triangle, two right-angle sides are welded together with oil tank wall.
10. the oval omnipotent group on-load regulator transformer of class according to claim 1 or 2, it is characterised in that: transformer oil
It is welded with corrugated plate on the outside of case, the heat dissipation of fuel tank internal is gone out by corrugated plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611959.3A CN109637790A (en) | 2018-12-27 | 2018-12-27 | The oval omnipotent group on-load regulator transformer of class |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811611959.3A CN109637790A (en) | 2018-12-27 | 2018-12-27 | The oval omnipotent group on-load regulator transformer of class |
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| CN109637790A true CN109637790A (en) | 2019-04-16 |
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| CN201811611959.3A Pending CN109637790A (en) | 2018-12-27 | 2018-12-27 | The oval omnipotent group on-load regulator transformer of class |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113077956A (en) * | 2021-03-19 | 2021-07-06 | 合肥工业大学 | High-power high-frequency five-phase magnetic integrated transformer |
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| CN203277071U (en) * | 2013-06-04 | 2013-11-06 | 苏州星州变压器有限公司 | Three-phase twelve-pulse-wave rectifier transformer structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113077956A (en) * | 2021-03-19 | 2021-07-06 | 合肥工业大学 | High-power high-frequency five-phase magnetic integrated transformer |
| CN113077956B (en) * | 2021-03-19 | 2022-09-27 | 合肥工业大学 | High-power high-frequency five-phase magnetic integrated transformer |
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