CN105723478A - Static electric induction system - Google Patents
Static electric induction system Download PDFInfo
- Publication number
- CN105723478A CN105723478A CN201480061740.4A CN201480061740A CN105723478A CN 105723478 A CN105723478 A CN 105723478A CN 201480061740 A CN201480061740 A CN 201480061740A CN 105723478 A CN105723478 A CN 105723478A
- Authority
- CN
- China
- Prior art keywords
- guiding piece
- fluid guiding
- fluid
- sector
- induction system
- 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.)
- Granted
Links
- 230000006698 induction Effects 0.000 title claims abstract description 65
- 230000003068 static effect Effects 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims abstract description 272
- 239000012809 cooling fluid Substances 0.000 claims abstract description 20
- 208000031481 Pathologic Constriction Diseases 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 description 23
- 239000007788 liquid Substances 0.000 description 12
- 238000004458 analytical method Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 7
- 239000000110 cooling liquid Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 125000002015 acyclic group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/322—Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
-
- 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
- H01F27/2876—Cooling
-
- 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
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/323—Insulation between winding turns, between winding layers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
- General Induction Heating (AREA)
Abstract
The invention relates to a static electric induction system comprising cooling fluid, an outer shell (12) and an inner shell (14), a coil assembly (6) comprising a plurality of coil units (16), stacked on top of one another and positioned in between the outer and inner shells (12, 14), and a plurality of coil unit spacers (20) configured to form a plurality of intermediate fluid ducts (32) between the coil units (16). The static electric induction system further comprises a first and an adjacent second sector (2, 2), each sector(2, 2) comprising a fluid guide arrangement (A, B) having a plurality of fluid guides (24, 26), whereby the vertical distance, as counted in coil units (16), between one pair of two subsequent fluid guides (24, 26) of a sector (2, 2) differs from a vertical distance, as counted in coil units (16), between another pair of two subsequent fluid guides (24, 26) of the same sector (2, 2) and wherein the first fluid guide arrangement (A) of the first sector (2) differs from the second fluid guide arrangement (B) of the second sector (2).
Description
Technical field
Invention relates to electrostatic induction system by fluid-cooled such as voltage transformer system etc. under normal circumstances.
Background technology
The known electrostatic induction system of such as core type transformer etc. is made up of the tank comprising the device body being made up of core, and its SMIS has the some current-carrying windings around they windings.Electricity winding or coil are disposed between electric insulation cylinder.Electricity winding can be buried or be configured to underground the dish being arranged on mutual top.Electricity winding can also spirally be shaped.When transformator in use hour indicator produces heat, this cooling fluid requiring over such as such as oil or ester group liquid dissipates.The life expectancy of the low voltage transformer system of heat drop and therefore generally requiring by using highly efficient and robust cooling system to make voltage transformer system cool down.Dish usually by distance piece in the vertical direction spaced apart with in the middle of two dishes or at two circle intermediate formation of helix windings for cooling down the horizontal liquid pipeline of liquid.Vertical fluid line is generally formed between outer cylinder body and stack tray and between inner barrel and stack tray.In majority of case, vertical fluid line is limited in level or circumferential direction by the spacer ribs for insulating cylinder body being held in place by or is limited.
The cooling system of known transformator can include the multiple fluid guiding pieces forcing liquid to flow in a certain direction, in order to improves the efficiency of transformer cooling system.Fluid guiding piece under normal circumstances by interior or/or outer cylinder body be disposed in the middle of two adjacent spacer ribs so that the fluid vertically flowed up in fluid line is forced to and flow to the horizontal liquid pipeline being positioned at below fluid guiding piece with zigzag flow pattern.Generally fluid guiding piece is arranged with the symmetrical pattern inner circumferential by stack tray the periphery by stack tray by the circumference along housing.Symmetry means that fluid guiding piece is arranged in the inner periphery and the outer periphery of stack tray with repetition or periodic patterns, wherein has about manufacturing the little deviation considered.
US4 ' 245 ' 206A discloses a kind of transformator including external insulation cylinder and interior insulating cylinder body, outside and be provided with coil unit between inner barrel.Horizontally and vertically spacer member is used to be positioned at coil unit between outer and inner cylinder and be used for arrange coil unit with being located remotely from each other to form the horizontally and vertically passage being used for cooling down liquid.The flow control components cross section being disposed between vertical spacing component will pass through reduction vertical pipeline guides and controls fluid flowing.Flow control components is circumferential by the constant pitch of the whole height to cross over transformator and symmetrical vertically and periodically arranges.It is disposed in the flow control components in sectional area to be always arranged symmetrically with and in the vertical direction displacement in some cases, illustrates in Figure 17 of US4 ' 245 ' 206A.Being arranged symmetrically with owing to flow control member, focus can easily spread, in circumferential direction particularly in coil unit 16, and peak temperature region can not be cooled efficiently.
Owing to the generation of the loss in winding, there occurs the rate of ageing of impact insulation and thus affect the focus of lifetime of transformator.
The physical location of hot(test)-spot temperature and amplitude depend on the actual distribution of oil flow guide.Important design object is to make maximum hot spot temperature keep low as far as possible.
Therefore, the distribution of the flow guide in transformator or arrange therefore it is required that careful consider and appropriate analysis.
Summary of the invention
It is an object of the invention to provide the electrostatic induction system of a kind of sane, efficient and durable improvement in view of the above circumstances.Electrostatic induction system can be power transformer or reactor.
Even if it is a further object of the present invention to provide a kind of electrostatic induction system also worked continuously and stably under high load.
Electrostatic induction system disclosed herein includes the coil block of cooling fluid, shell and inner shell, the multiple coil units including being stacked on mutual top and be positioned between outer and inner shell and multiple coil unit distance pieces of being configured to be formed multiple central fluid conduit between coil unit.Electrostatic induction system farther includes first and the second adjacent sector, each in first and second sectors includes having the fluid guiding piece of multiple fluid guiding piece and arranges, wherein vertical distance when counting with coil unit between two of a pair of sector fluid guiding piece subsequently be different from common sector another to two fluid guiding pieces subsequently between vertical distance when counting with coil unit, and thus the first sector first fluid guiding piece arrange be different from the second sector second fluid guiding piece arrange.
The fluid guiding piece of the first sector is arranged can not only due to it be vertically shifted and is different from the fluid guiding piece of the second sector and arranges.
Electrostatic induction system can include the inner circumferential around coil block further and the periphery around coil block is evenly arranged multiple vertically in and exterior loop unit interval rib, thus the first sector of respective two adjacent vertical interior loop unit interval ribs and two corresponding adjacent upright exterior loop unit interval rib constrained line coil unit assemblies.
Shell and inner shell can form a part for the housing being configured to receive coil block and other the potential electric components including coil unit.
The foundation that first and second fluid guiding pieces of above-mentioned electrostatic induction system are arranged ensure that the amplitude of focus is lowered by the heat transmission in coil unit and in cooling fluid or the conduction in the circumferential direction of coil unit.
If there occurs less desirable focus, it also is able to make focus equilibrium, spread under normal circumstances in the circumferential direction of surrounded coil unit particularly in focus, even not desired focus according to the electrostatic induction system of invention.Even if there is focus during abnormal load conditions or overload, it is also possible to by using configuration as above make the thermal energy from this focus balanced or dissipate.
When the heat carrying out electrostatic induction system is analyzed, the region of focus and the temperature with increase becomes visible.Computational fluid dynamics (CFD) or heat power network modeling method may be used for carrying out heat analysis.The direct temperature measuring method using fiber optic sensor can be used for analyzing the Temperature Distribution in electrostatic induction system.Analyzing according to such heat, fluid guiding piece can be distributed in electrostatic induction system.
Advantageously, the first and second fluid guiding pieces are arranged and are included being close to the interior fluid guiding piece that inner shell is arranged and the outer fluid guiding piece arranged by shell.
Fluid guiding piece may insure that cooling fluid flowing is changed to bottom horizontal flow sheet direction from vertical flow direction and returns so that cooling fluid can enter intermediate conduit.
Vertical distance when counting with coil unit between interior fluid guiding piece and the outer fluid guiding piece subsequently of sector can be differently configured from vertical distance when counting between the identical interior fluid guiding piece of common sector and preceding outer fluid guiding piece with coil unit.
It addition, vertical distance when counting with coil unit between the outer fluid guiding piece of sector and interior fluid guiding piece subsequently can be differently configured from vertical distance when counting between the identical outer fluid guiding piece of common sector and preceding interior fluid guiding piece with coil unit.
When the height of cranked coil assembly is watched, the vertical distance between two outer fluid guiding pieces subsequently can change and vertical distance between two interior fluid guiding pieces subsequently can change.
This measure can increase the efficiency of the cooling in the region with higher heating.It addition, this can reduce cooling fluid, such as cool down the temperature of oil.
Arranged across at least two sector in aperiodicity mode with outer fluid guiding piece in a preferred embodiment.
Interior fluid guiding piece is arranged substantially on the surface limited by the inner circumferential of coil unit or coil block, and outer fluid guiding piece is disposed on the surface limited by the periphery of coil unit or coil block.These surfaces are divided into sector and when at least two sector is mutually in time analyzing, fluid guiding piece is aperiodically distributed.
Even can have the interior and outer fluid guiding piece crossing over three or more sectors non-periodic distribution.Therefore can have the fluid guiding piece that the whole interior and periphery of the coil block crossing over electrostatic induction system is distributed in very arbitrary mode in theory.
Preferably, electrostatic induction system includes interior vertical fluid line and outer vertical fluid line.
Vertical fluid line is configured to provide the Vertical Channel for cooling down fluid.
In an embodiment, interior and outer fluid guiding piece is configured to respectively the vertically cooling fluid flowing in more or less total blockage and in outer vertical fluid line.
Such obstruction guarantees that comparatively large number of cooling fluid is directed in central fluid conduit and coil unit is cooled efficiently along its horizontal surface.
Advantageously, the first fluid guiding piece of the first sector is arranged and is not arranged consistent with the second fluid guiding piece of the second sector.
Such design enhances the cooling of the coil unit in horizontal direction and reduce further the diffusion along the level of coil unit or the focus of circumferential direction.
Therefore the coil unit including focus in the first sector is cooled down more efficiently compared with the second adjacent sector.
Preferably, cooling fluid is followed and is arranged, by different fluid guiding piece, the fluid flow pattern produced, thus different fluid guiding pieces is arranged causes different fluid flow pattern.
Fluid flow pattern is used to cooling coil unit and they can further indicate that out the different flowing velocities of electrostatic induction intrasystem cooling fluid.
In another embodiment, electrostatic induction system or transformator can include interior and exterior loop unit interval rib, thus coil unit distance piece is disposed between interior and exterior loop unit interval rib.
Vertical interior and exterior loop unit interval rib may be configured to receive the coil unit distance piece being in any height and coil unit distance piece can be conveniently connected in and exterior loop unit interval rib.
Make coil unit distance piece consistent with vertical interior and exterior loop unit interval rib have make central fluid conduit within vertically and the advantage not having interruption between exterior loop unit interval rib.
In an embodiment, electrostatic induction system can include the 3rd sector being adjacent to the second sector, and wherein the 3rd sector includes the threeth fluid guiding piece layout different from the first and second fluid guiding pieces layouts of the first and second sectors.
Therefore the fluid flow pattern of first, second, and third sector can also be mutually different.
Here term difference mean the fluid flow pattern in each in first, second, and third sector and therefore fluid guiding piece arrange differ, and the distance between interior fluid guiding piece and/or outer fluid guiding piece as above described along vertical direction change.Therefore the fluid flow pattern of first, second, and third sector is not consistent with each other, even if they are shifted along vertical direction.In other words, when the fluid flow pattern of the first sector and/or the second sector and/or the 3rd sector being compared, they can be asymmetrical；It is more than the shift-copy of the fluid flow pattern of adjacent or adjacent fluid flow pattern.
Advantageously, the density of inner and/or outer fluid guiding piece is higher than in the bottom section of coil block in the top area of coil block.Density relationship crosses over the quantity of the interior and outer fluid guiding piece of every fixed qty coil unit of certain height in the vertical direction when watching.Highly can choose suitably, as long as it is the multiple of the height of part.
Can position than towards the more fluid guiding piece of bottom section towards top area.
The density of fluid guiding piece can be upper at the inner peripheral (interior fluid guiding piece) of stack tray or upper in outboard peripheries (outer fluid guiding piece) or higher on inner peripheral and outboard peripheries.
Interior fluid guiding piece and subsequently/preceding outer fluid guiding piece between or outer fluid and subsequently/preceding interior fluid guiding piece between the quantity of central fluid conduit affect the cooling effectiveness in central fluid conduit and cooling effect.Fluid flow rate between different central fluid conduit is different from each other, and this depend on interior fluid guiding piece and subsequently/preceding outer fluid guiding piece between or outer fluid and subsequently/preceding interior fluid guiding piece between vertical distance when counting with coil unit.
Exemplarily, when distance is decreased to four coil units from six coil units, the fluid flowing in central fluid conduit increases about 50%.Therefore the placement of fluid guiding piece is very effective for making electrostatic induction system cool down and make oil/chilled liquid temperature be maintained at relatively low level.
Electrostatic induction system or transformator can be driven by free convection.
Alternately, electrostatic induction system can include the pump driver being configured to drive the cooling fluid in electrostatic induction system or transformator.
Therefore above-mentioned configuration can be used in the transformator that oil guiding (OD) cools down or be forced in the transformator that (OF) cools down at oil.
In another embodiment, the quantity of the interior and outer fluid guiding piece that interior and outer fluid guiding piece the quantity in fluid guiding piece layout is different from during another fluid guiding piece is arranged.
Therefore the quantity of fluid guiding piece is not necessary in sector necessarily identical first, second or the 3rd.They can be variant in each sector, it is assumed that is cooled through in a sector compared with in adjacent sector to use less or more oil guiding piece and optimised.This is likely to the impact of the temperature being cooled liquid.If sector produces the cooling liquid with maximum temperature, fluid guiding piece can be placed in this particular sector and the temperature of cooling liquid is lowered.
The distribution of fluid guiding piece can be based simply on the heat analysis of electrostatic induction system, thus more fluid guiding piece is installed in the region with higher heating to increase the flow rate cooling down liquid in this region of electrostatic induction system.
Fluid guiding piece is arranged in the method in electrostatic induction system by as described herein being related to further, comprises the steps:
-use during electrostatic induction system heat analysis；
-in heat analysis, identify focus and the region of the temperature with increase；
-based on hot analysis distribution and fixing fluid guiding piece to increase flow rate and to reduce focus and there is the region of temperature of heating/increase of increase.
If heat analyzes the high-temperature of display cooling liquid in an area, can be placed in this region to obtain the cooling effect for hardware/coil unit similar to the region with relatively low chilled liquid temperature with outer fluid guiding piece in more.In other words, when cooling down liquid and being hotter/relatively warm, flow rate needs higher, in order to the cooling effect for coil unit identical when providing colder with cooling liquid.
Such method this have the advantage that, electrostatic induction system can depend on that the material of particular transformer and structural property configure and be equipped with.Electrostatic induction system can eventually even including less fluid guiding piece compared with the known voltage transformer system being arranged symmetrically with including fluid guiding piece after heat analysis because heat is analyzed and can be demonstrated that to be less than multi-fluid guiding piece for efficiently cooling down transformator be all necessary.
Configuration that typical fluid guiding piece arrangement pattern can include wherein take into account the relatively low maximum focus of robustness or wherein take into account the configuration of different refrigerating mode (pump operated and do not operate).It addition, fluid guiding piece arrange configuration can depend on the different Several Typical Load situations of transformator, different external condition (desert, frigid zone condition, weather and temperature) or transformator such as such as startup stage during or steady statue during etc. different condition choose.Can also be able to make fluid guiding piece pattern be inverted, such as arrange outer fluid guiding piece according to interior pattern and arrange interior fluid guiding piece according to outer pattern.
All these configurations are within and they can corresponding affect on the layout configuration of fluid guiding piece and arrange.
Usually, all terms used in claim all should be explained according to its its ordinary meaning in technical field, unless otherwise specifically limited here.To " one/mono-/this element, system, equipment, building block, layout, pattern, parts, step etc. " all references all should be not construed as at least one example of finger element, system, equipment, layout, pattern, building block, parts, step etc. with opening, unless otherwise expressly provided.The step of any method disclosed herein is all not necessary to be performed in the exact order disclosed, unless specifically stated.
Accompanying drawing explanation
Mode now by example is described with reference to invention, wherein:
Fig. 1 illustrates the sample portion of transformator as be known in the art；
Fig. 2 illustrates the front schematic view of a part for transformator as be known in the art；
Fig. 3 illustrates the view on the cross section of the embodiment of Fig. 2；
Fig. 4 illustrates the axonometric chart of a part for the electrostatic induction system according to invention or transformator；
Fig. 5 schematically illustrates the front view of a part for the electrostatic induction system according to invention or transformator；
Fig. 6 schematically illustrates the view in the cross section of the transformator according to invention；With
Fig. 7 schematically illustrates the front view of a part for the transformator of another embodiment according to invention.
Detailed description of the invention
Accompanying drawing hereinafter with reference to some embodiment illustrating electrostatic induction system is more fully described invention now.But this invention multi-form can embody with a lot of and should not be construed as being limited to the embodiments set forth herein；But, these embodiments of electrostatic induction system or voltage transformer system are the disclosure that makes provided by way of example will be thorough and completely, and scope of invention is fully conveyed to those skilled in the art.Similar numeral runs through description and refers to similar element.
Referring to the Fig. 1 to Fig. 3 illustrating prior art, it is shown that the part of the coil block 6 of electrostatic induction system 1.Coil block 6 include some, be six coil units 16 in this case, it is for dish type and is arranged through coil unit distance piece 20 and stacks each other at interval.Coil unit distance piece 20 can be disposed between two continuous print coil units 16.Coil unit distance piece 20 can be shaped as square position section as shown in Figure 1.The coil unit distance piece 20 that two continuous print when watching along the circumference of coil unit 16 are arranged with coil unit pitch 18 and two continuous print coil units 16 when watching on the vertical direction at coil block 6 limit horizontal central fluid conduit 32, and it passes coil block 6 from the outside of coil unit 16 and coil block 6 or periphery 38 respectively and extends respectively to inner side or the inner circumferential 40 of coil unit 16 and coil block 6.
Central fluid conduit 32 is configured to allow the cooling fluid of the cooling system being liquid under normal circumstances, preferred dielectric fluid pass through.Coil block 6 farther includes in vertically and exterior loop unit interval rib 21,22, its be configured to by interior and shell 12,14, coil unit distance piece 20, coil block 6 and coil unit 16 hold and locate in position respectively.The multiple vertical fluid line 28,30 of the periphery around coil unit 16 can be limited together with outer and inner electric insulation shell (not shown in figure 1) with exterior loop unit interval rib 21,22 in vertically, going out as illustrated in figure 3, it also refers to prior art.
Two adjacent vertically interior spacer ribs 21 and two corresponding vertically outer spacer ribs 22 limit the first sector 2, and it includes corresponding fluid guiding piece and arranges A.Fluid guiding piece arranges that A includes interior and outer fluid guiding piece 24,26.
In and outer fluid guiding piece 24,26 be positioned in fluid line 28,30 in a symmetrical and fluid guiding piece arrange A, A ' in direct fluid to, in central fluid conduit 32, go out as illustrated in Fig. 1 and Fig. 3.
Fluid guiding piece arranges A, A ' and central fluid conduit 32 fluid flow pattern 10 cooling down fluid that causes going out illustrated in Fig. 3 (the electrostatic induction system in use).Fluid flow pattern 10 and fluid guiding piece layout A, A in the prior art ' is identical and/or they are consistent with each other.
Referring now to Fig. 2, it illustrates in including and the fluid guiding piece of outer fluid guiding piece 24,26 arranges A, A ', first fluid guiding piece arranges from second fluid guiding piece, A arranges that A ' vertically and shifts along middle ground.Fluid guiding piece 24,26, first fluid guiding piece in fig. 2 arrange that the exemplary outer fluid guiding piece 26 of A is arranged with the constant vertical distance when counting with coil unit 16, every three coil units 26.Adjacent second fluid guiding piece arranges that the outer fluid guiding piece 26 of A ' is arranged with vertically shifting, but is shifted so that second fluid guiding piece arranges that the outer fluid guiding piece 26 of A ' is disposed between two outer fluid guiding pieces 26 subsequently when first fluid guiding piece arranges the in the vertical direction viewing of A along central authorities.Therefore the layout of fluid guiding piece 26 also is that fluid guiding piece arranges A, A ' be symmetrical, because pattern repeats and because the first and second fluid guiding pieces arrange A, A ' is not mutually different form, simply only vertically and along central shift.
Fluid guiding piece 24,26 shown in prior art is not configured to the vertical fluid line 28,30 of primary stricture.They are only configured to the vertical fluid line of partial blockage 28,30 and allow a certain amount of cooling fluid by without being forced into central fluid conduit 32.
A, A is arranged when using fluid guiding piece as shown in Figure 1 to Figure 3 ' time, focus is likely to generally always occur in same position, and when installing or use different or acyclic or only part periodic fluid guiding piece to arrange, focus does not occur at same position and therefore they be reduced or even and be eliminated.
In design of transformer, only absolute maximum temperature is relevant to limiting hottest point.Therefore reduce the hottest or " maximum " focus and forbid that the diffusion of focus is considerable.
Referring now to the Fig. 4 to Fig. 7 exemplarily illustrating embodiments of the invention, fluid guiding piece arranges that A, B are variant and they are in view of being all different and acyclic each other.
Even if difference here and aperiodicity mean fluid guiding piece arrange the adjacent sectors of A, B and result fluid flow pattern they by neither be consistent with each other along vertical direction displacement.
Fig. 4 illustrates transformator or a part for electrostatic induction system 1, wherein illustrates the first sector 2 and the second adjacent sector 2 '.By a pair, vertically interior spacer ribs and a pair corresponding vertically outer spacer ribs 21,22 define or limit in first and second sectors 2,2 '.Each in first and second sectors 2,2 ' includes different fluid guiding pieces and arranges A, B.First sector 2 includes first fluid guiding piece and arranges that A and the second sector 2 ' include second fluid guiding piece and arrange B.One fluid guiding piece arranges that the interior and outer fluid guiding piece 24,26 of A, B is always depending on arranging each other, and this is made apparent from when considering Fig. 6.Fig. 6 illustrates the cooling fluid flow pattern in electrostatic induction system 1.Each fluid guiding piece arranges that the interior fluid guiding piece 24 of A, B and outer fluid guiding piece 26 are arranged in order to create the fluid flow pattern 10,10 ' efficiently cooled down guaranteeing transformator or electrostatic induction system 1.Therefore outer and inner fluid guiding piece 24,26 can not be arranged in fluid guiding piece and arrange the phase same level in A, B or on height, because this fluid flowing that will block in transformator.
Interior fluid guiding piece 24 and outer fluid guiding piece 26 are configured to almost block vertical fluid line 28,30 wholly or substantially.
Illustrating four sectors 2,2 ' in the diagram, wherein the first sector 2 and the second sector 2 ' are arranged in an alternating fashion.The fluid guiding piece of the first sector 2 arranges that A includes crossing over six outer fluid guiding pieces 26 of sum that the height of transformator 1 is arranged in aperiodicity mode.The vertically distance change when counting with coil unit 16 and these distance spanning heights between two outer fluid guiding pieces 26 subsequently are not constant.This provides the more effective cooling of potential focus, because hotspot anneal, the risk that especially spreads in the horizontal direction are compared with prior art reduced by essence.
Sector 2,2 ' is all has formed objects, because being evenly distributed and arrange with periphery 38,40 with exterior loop unit interval rib 21,22 in coil block 6 in vertically.
As noted in the introduction, the fluid passed through in fluid line 32 between the vertically oriented and quantity centering of the coil unit 16 between two inner and/or outer fluid guiding pieces 24,26 subsequently has materially affect and therefore cooling performance is had materially affect.
In and outer fluid guiding piece 24,26 be respectively disposed at vertical interior and or exterior loop unit interval rib 21,22 between and between inner circumferential 38 and inner shell 14 and between periphery 40 and shell 40.In and outer fluid guiding piece 24,26 preferably by with ring segment shape formable and be connected to respective two continuous print vertically in and exterior loop unit interval rib 21,22.Vertical curve coil unit spacer ribs 21,22 is configured to receive the fluid guiding piece 24,26 being in any height.Fluid guiding piece 24,26 can be connected to vertical curve coil unit spacer ribs 21,22 by groove/rib mechanism.
In and shell 12,14 can be electric insulation or they be not likely to be electric insulation.Interior and shell is preferably formed with tubular.
Fig. 5 schematically illustrates the front view of a part for the electrostatic induction system 1 of the coil unit 16 including outer fluid guiding piece 26, vertically outer spacer ribs 22 and formation coil block 6.The fluid guiding piece of the first sector 2 arranges that A is vertically shifted but is not along central shift, namely by a coil unit pitch 18 or by a coil unit 16 shifts, and first vertical distance when counting with coil unit 16 between outer fluid guiding piece 26 subsequently is being three coil units 16 when watching from the bottom of coil block 6 and is being followed by two coil units 16.Therefore the height of distance cranked coil assembly 16 is not constant.Although Fig. 5 only illustrates outer fluid guiding piece 26, but the similar arrangement not being consistent with the layout of outer fluid guiding piece 26 is used to interior fluid guiding piece 24.The layout of the interior fluid guiding piece 24 in a sector 2,2 ' and the layout of outer fluid guiding piece 26 form fluid guiding piece and arrange A, B.
Coil block 6 part map in Fig. 4 is illustratively shaped with column and therefore Fig. 6 illustrates the cross section intercepted through electrostatic induction system 1, it is illustrated that the fluid guiding piece of first sector 2 arranges the fluid guiding piece layout B of A and the second sector 2 '.The cross section illustrated in Fig. 6 is unrelated with a part for the electrostatic induction system 1 shown in Fig. 5.
In figure 6 it will be clear that interior and outer fluid guiding piece 24,26 arbitrarily or is aperiodically distributed, in order to improve the cooling effectiveness of coil unit 16.Coil unit 16 is coil panel 37 in the illustrated embodiment.Illustrating further in Fig. 6, interior and outer fluid guiding piece 24,26 is configured to the vertical fluid line 28,30 of primary stricture.
Fig. 7 schematically illustrates and includes the 2, second sector 2 ', the first sector and the 3rd sector 2 " another solution according to invention, wherein each sector includes different fluid guiding piece and arranges A, B, C.First sector 2 includes first fluid guiding piece and arranges that A, the second sector include second fluid guiding piece and arrange B and the 3rd sector 2 " include the 3rd fluid guiding piece layout C.Only illustrate that fluid guiding piece arranges the outer fluid guiding piece 26 of A, B, C in the figure 7.It is distributed however, it is clear that interior fluid guiding piece 24 depends on outer fluid guiding piece 26 and positions to create fluid flow pattern 10,10 ' without fluid flow blockage.3rd fluid guiding piece layout C causes the fluid flow pattern (not shown) that the fluid flow pattern of first and second fluid guiding pieces layout A, B from the first and second sectors 2,2 ' is different.As can as can be seen from Figure 5, the quantity of the outer fluid guiding piece 26 first and second fluid guiding pieces in the first and second sectors 2,2 ' arrange in A, B be four and it in the 3rd sector 2 " the 3rd fluid guiding piece arrange that in C be five.In corresponding, the quantity of fluid guiding piece 24 can arrange from fluid guiding piece that the quantity of the outer fluid guiding piece 26 in A, B, C is identical or different.The heat analysis of electrostatic induction system is depended in the quantity of fluid guiding piece 24,26 and distribution.Heat analyzes the region of display focus and the temperature with increase.Analyze fluid guiding piece 24,26 according to heat to be distributed in electrostatic induction system.
As mentioned previously, being disposed in the density of fluid guiding piece 24,26 in the top area of electrostatic induction system 1 or coil block 6, therefore its quantity can high than in central region or lower area.The higher density of fluid guiding piece 24,26 significantly increases the fluid in intermediate conduit 32 and flows and can therefore improve the cooling in the top area of transformator.
In and outer fluid guiding piece 24,26 distribution can based on the heat analysis of electrostatic induction system, in wherein more and outer fluid guiding piece 24,26 is installed in the region with higher heating so that the flow rate of the cooling liquid increased in this region of electrostatic induction system.Additionally fluid guiding piece 24,26 can be positioned so that increases flow rate to improve overall cooling effect in the place that the temperature of cooling liquid is higher.
The density of interior fluid guiding piece 24 and/or outer fluid guiding piece 26 can be therefore higher in the top area of coil block 6, because heat is analyzed at higher temperature shown in the top area of coil block in some cases.
Invention is described above referring especially to several embodiments.But, as those skilled in the art are comprehensible, other embodiments except disclosed above those are equally possible in the scope of invention such as limited by enclosed patent claims.
Claims (15)
1. an electrostatic induction system, including:
-cooling fluid,
-shell (12) and inner shell (14),
-coil block (6), including: it is stacked on mutual top and is positioned in described shell and inner shell (12,14) the multiple coil units (16) between, and it is configured to be formed multiple coil unit distance pieces (20) of multiple central fluid conduit (32) between described coil unit (16)
-the first sector and the second adjacent sector (2, 2 '), each sector (2, 2 ') include that there is multiple fluid guiding piece (24, 26) fluid guiding piece arranges (A, B), wherein sector (2, 2 ') two of a pair fluid guiding piece (24 subsequently, 26) vertical distance when counting with coil unit (16) between is different from common sector (2, 2 ') another to two fluid guiding pieces (24 subsequently, 26) vertical distance when counting with coil unit (16) between, and the described first fluid guiding piece of wherein said first sector (2) arranges that (A) is different from described second fluid guiding piece layout (B) of described second sector (2 ').
2. electrostatic induction system according to claim 1, wherein said first fluid guiding piece is arranged and second fluid guiding piece arranges that (A, B) includes being close to the interior fluid guiding piece (24) that described inner shell (14) is arranged and the outer fluid guiding piece (26) arranged by described shell (12).
3. electrostatic induction system according to claim 2, wherein sector (2,2 ') vertical distance when counting with coil unit (16) between interior fluid guiding piece (24) and outer fluid guiding piece (26) subsequently is different from vertical distance when counting between described interior fluid guiding piece (24) and the preceding outer fluid guiding piece (26) of common sector (2,2 ') with coil unit (16).
4. electrostatic induction system according to claim 2, wherein sector (2,2 ') vertical distance when counting with coil unit (16) between outer fluid guiding piece (26) and interior fluid guiding piece (24) subsequently is different from vertical distance when counting between the described outer fluid guiding piece (26) of common sector (2,2 ') and preceding interior fluid guiding piece (24) with coil unit (16).
5., according to the electrostatic induction system that any one in aforementioned claim is described, wherein said interior fluid guiding piece and outer fluid guiding piece (24,26) are arranged across at least two sector (2,2 ') in aperiodicity mode.
6. according to the electrostatic induction system that any one in aforementioned claim is described, including interior vertical fluid line (28) and outer vertical fluid line (30).
7. according to the electrostatic induction system that any one in aforementioned claim is described, wherein said interior fluid guiding piece and outer fluid guiding piece (24,26) it is configured to interior vertically fluid line described in difference primary stricture and the vertically cooling fluid in outer vertical fluid line (30,28) flows.
8., according to the electrostatic induction system that any one in aforementioned claim is described, the described first fluid guiding piece of wherein said first sector (2) arranges with the described second fluid guiding piece of described second sector (2 '), (A) does not arrange that (B) is consistent.
9. according to the electrostatic induction system that any one in aforementioned claim is described, wherein said cooling fluid limits fluid flow pattern (10,10 ', 10 "); and wherein different fluid guiding piece arranges that (A, B, C) causes different fluid flow pattern (10; 10 ', 10 ").
10. according to the electrostatic induction system that any one in aforementioned claim is described, including interior loop unit interval rib and exterior loop unit interval rib (21,22), wherein said coil unit distance piece (20) is disposed between described interior loop unit interval rib and exterior loop unit interval rib (21,22).
11. according to the electrostatic induction system that any one in aforementioned claim is described, including the 3rd sector (2 ") being adjacent to described second sector (2 '); and wherein said 3rd sector (2 ") include and described first sector and the second sector (2,2 ') described first fluid guiding piece is arranged and second fluid guiding piece arranges that the 3rd fluid guiding piece that (A, B) is different arranges (C).
12. according to the electrostatic induction system that any one in aforementioned claim is described, wherein the density of interior fluid guiding piece and outer fluid guiding piece (24,26) is higher than in the bottom section of described coil block in the top area of described coil block (6).
13. according to the electrostatic induction system that any one in aforementioned claim is described, wherein said cooling fluid is driven by free convection.
14. according to the electrostatic induction system that any one in aforementioned claim is described, including being configured to drive the pump driver of the described cooling fluid in described electrostatic induction system.
15. according to the electrostatic induction system that any one in aforementioned claim is described, wherein said first fluid guiding piece is arranged or second fluid guiding piece arranges (A, B) interior fluid guiding piece and the quantity of outer fluid guiding piece (24,26) in are different from described 3rd fluid guiding piece and arrange the quantity of the interior fluid guiding piece in (C) and outer fluid guiding piece.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13185589.2 | 2013-09-23 | ||
| EP13185589.2A EP2851912B1 (en) | 2013-09-23 | 2013-09-23 | Static electric induction system |
| PCT/EP2014/070129 WO2015040213A1 (en) | 2013-09-23 | 2014-09-22 | Static electric induction system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105723478A true CN105723478A (en) | 2016-06-29 |
| CN105723478B CN105723478B (en) | 2018-07-17 |
Family
ID=49231329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480061740.4A Active CN105723478B (en) | 2013-09-23 | 2014-09-22 | Electrostatic induction system |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2851912B1 (en) |
| CN (1) | CN105723478B (en) |
| WO (1) | WO2015040213A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114342018A (en) * | 2019-10-29 | 2022-04-12 | 日立能源瑞士股份公司 | Electrostatic induction system and method |
| CN115803831A (en) * | 2020-07-13 | 2023-03-14 | 日立能源瑞士股份公司 | Electrostatic induction device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3385962B1 (en) | 2017-04-05 | 2020-06-24 | ABB Power Grids Switzerland AG | Static electric induction apparatus comprising a winding and a sensor system for monitoring the temperature in the winding |
| JP2019204883A (en) * | 2018-05-24 | 2019-11-28 | 富士電機株式会社 | Cooling structure of induction electrical apparatus winding and induction electrical apparatus |
| EP4199014A1 (en) | 2021-12-17 | 2023-06-21 | Hitachi Energy Switzerland AG | Static electric induction device and operating method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028653A (en) * | 1976-04-01 | 1977-06-07 | Asea Aktiebolag | Electrical equipment having radial cooling channels with means for guiding cooling fluid through the channels |
| JPS57148322A (en) * | 1981-03-11 | 1982-09-13 | Hitachi Ltd | Self-cooling stationary inductor coil winding |
| US4363012A (en) * | 1977-03-26 | 1982-12-07 | Hitachi, Ltd. | Winding structure for static electrical induction apparatus |
| JPH05275246A (en) * | 1992-03-25 | 1993-10-22 | Meidensha Corp | Cooling structure of electromagnetic induction disc winding |
| JPH07263248A (en) * | 1994-03-23 | 1995-10-13 | Toshiba Corp | Gas-cooled electric power machine |
| CN2594944Y (en) * | 2003-01-14 | 2003-12-24 | 特变电工衡阳变压器有限公司 | Self oil circulating structure of transformer |
| CN201262869Y (en) * | 2008-09-16 | 2009-06-24 | 保定天威集团有限公司 | Guide structure for transformer coil oil |
-
2013
- 2013-09-23 EP EP13185589.2A patent/EP2851912B1/en active Active
-
2014
- 2014-09-22 CN CN201480061740.4A patent/CN105723478B/en active Active
- 2014-09-22 WO PCT/EP2014/070129 patent/WO2015040213A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4028653A (en) * | 1976-04-01 | 1977-06-07 | Asea Aktiebolag | Electrical equipment having radial cooling channels with means for guiding cooling fluid through the channels |
| US4363012A (en) * | 1977-03-26 | 1982-12-07 | Hitachi, Ltd. | Winding structure for static electrical induction apparatus |
| JPS57148322A (en) * | 1981-03-11 | 1982-09-13 | Hitachi Ltd | Self-cooling stationary inductor coil winding |
| JPH05275246A (en) * | 1992-03-25 | 1993-10-22 | Meidensha Corp | Cooling structure of electromagnetic induction disc winding |
| JPH07263248A (en) * | 1994-03-23 | 1995-10-13 | Toshiba Corp | Gas-cooled electric power machine |
| CN2594944Y (en) * | 2003-01-14 | 2003-12-24 | 特变电工衡阳变压器有限公司 | Self oil circulating structure of transformer |
| CN201262869Y (en) * | 2008-09-16 | 2009-06-24 | 保定天威集团有限公司 | Guide structure for transformer coil oil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114342018A (en) * | 2019-10-29 | 2022-04-12 | 日立能源瑞士股份公司 | Electrostatic induction system and method |
| CN115803831A (en) * | 2020-07-13 | 2023-03-14 | 日立能源瑞士股份公司 | Electrostatic induction device |
| CN115803831B (en) * | 2020-07-13 | 2024-01-02 | 日立能源有限公司 | Electrostatic induction device |
| US11908602B2 (en) | 2020-07-13 | 2024-02-20 | Hitachi Energy Ltd | Static electric induction arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015040213A1 (en) | 2015-03-26 |
| EP2851912A1 (en) | 2015-03-25 |
| CN105723478B (en) | 2018-07-17 |
| EP2851912B1 (en) | 2020-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105723478A (en) | Static electric induction system | |
| US9947453B2 (en) | Stationary induction electric apparatus | |
| EP3024004A1 (en) | Air-cooled reactor | |
| RU2012135469A (en) | GUIDE DISC SYSTEM FOR HEAT EXCHANGER, HEAT EXCHANGER, METHOD FOR MANUFACTURING THE HEAT EXCHANGER, AND ALSO KIT FOR EQUIPMENT OR REFITTING THE HEAT EXCHANGER | |
| CN107924747A (en) | The cooling of Static Electro induction system | |
| US11322289B2 (en) | Electrical device having encapsulated spaces cooled with different intensity | |
| KR101869820B1 (en) | A transformer having its own cooling structure | |
| JP2007173685A (en) | Stationary induction electric apparatus | |
| EP3051542B1 (en) | High temperature superconductor cable | |
| KR20120004367U (en) | Method for cooling a coil coil cooling system and liquid cooled coil | |
| US20220034595A1 (en) | Wound heat exchanger, method for producing a wound heat exchanger and method for exchanging heat between a first fluid and a second fluid | |
| US20150213940A1 (en) | Static Apparatus | |
| WO2014091652A1 (en) | In-vehicle cooling device | |
| CA2967110C (en) | Cooling ducts for transformers' winding | |
| KR20220026599A (en) | Insulation member | |
| KR102016437B1 (en) | Transformer having enhacend cooling effect | |
| KR101181498B1 (en) | Winding part cooling device | |
| JP5717426B2 (en) | Static induction machine | |
| JP2010153440A (en) | Stationary induction electrical apparatus | |
| JP7255394B2 (en) | Induction winding device | |
| EP4199014A1 (en) | Static electric induction device and operating method | |
| JP2013243167A (en) | Stationary induction apparatus | |
| RU2770911C1 (en) | Induction fluid heater | |
| RU213364U1 (en) | SCREW WINDING WITH ADDITIONAL SUPPORTS | |
| JP2000077236A (en) | Stationary induction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180515 Address after: Baden, Switzerland Applicant after: ABB Switzerland Co.,Ltd. Address before: Zurich Applicant before: ABB TECHNOLOGY Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210525 Address after: Baden, Switzerland Patentee after: ABB grid Switzerland AG Address before: Baden, Switzerland Patentee before: ABB Switzerland Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231231 Address after: Zurich, SUI Patentee after: Hitachi Energy Co.,Ltd. Address before: Swiss Baden Patentee before: Hitachi energy Switzerland AG |