CN206806148U - Bi-material layers amorphous three phase transformer iron core - Google Patents
Bi-material layers amorphous three phase transformer iron core Download PDFInfo
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- CN206806148U CN206806148U CN201720665234.7U CN201720665234U CN206806148U CN 206806148 U CN206806148 U CN 206806148U CN 201720665234 U CN201720665234 U CN 201720665234U CN 206806148 U CN206806148 U CN 206806148U
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Abstract
The utility model discloses a kind of bi-material layers amorphous three phase transformer iron core,Including three single-phase iron cores of structure identical,Each single-phase iron core includes two symmetrical iron core columns and two iron yokes symmetrical above and below,Each single-phase iron core is connected with two other single-phase iron core by iron core column,Wherein,Each single-phase iron core forms by the silicon strip and non-crystaline amorphous metal tape wrapping of multistage head and the tail connection,First paragraph in multistage silicon strip and amorphous alloy strip to the 4th section be silicon strip,Remaining is amorphous alloy strip,The 3rd section of silicon strip in four sections of silicon strips is rectangle silicon strip,Remaining silicon strip is right-angled trapezium silicon strip,The width of rectangle silicon strip is more than the width of right-angled trapezium silicon strip,And the width of the right-angled trapezium silicon strip positioned at rectangle silicon strip both sides successively decreases successively along the direction away from rectangle silicon strip,Each single-phase iron core also includes rectangle silicon strip pad.Bi-material layers amorphous three phase transformer iron core provided by the utility model can further reduce open circuit loss.
Description
Technical field
It the utility model is related to transformer core, more particularly to a kind of bi-material layers amorphous three phase transformer iron core.
Background technology
Three-phase amorphous alloy transformer core of the prior art, mostly using the post of four frame five or the rod structure of three frame three, its
Iron core column cross section is rectangular, and in order to be set with transformer coil, every layer of one end iron yoke of its single frame iron core have to be off, with shape
Into mitre.When assembling high and low pressure coil, every layer of gap of iron yoke is opened one by one and smoothed out with the fingers directly, when high and low pressure coil set
After installing, then every layer is closed up one by one, and seam crossing is bonded with insulation Tapes colligations and with glue special.
The structure of above-mentioned this iron core has many shortcomings, first it iron core column cross section it is rectangular, coiling is than circle
The copper material of more consumption 11.4% or so in section.Secondly because one end iron yoke of each single-phase iron core will disconnect, mitered is formed
Seam, causes magnetic resistance to increase, the open circuit loss of iron core is consequently increased.During transformer station high-voltage side bus, in the presence of alternating magnetic field, it connects
Easily cause vibration at seam, so as to produce very big noise.Magnetic flux density in the iron yoke of other this iron core is in iron core column
1.154 times of magnetic flux density, the open circuit loss that it also results in iron core further increase.
Therefore, how further to reduce the open circuit loss of above-mentioned three phase transformer iron core turns into the utility model urgently
The technical problem of solution.
The content of the invention
The utility model is intended at least solve one of technical problem present in prior art, there is provided a kind of bi-material layers amorphous
Three phase transformer iron core, to solve the problems of the prior art.Three-dimensional three phase-change pressures of bi-material layers amorphous of the present utility model
Device iron core can further reduce the open circuit loss in three phase transformer iron core of the prior art.
As one side of the present utility model, there is provided a kind of bi-material layers amorphous three phase transformer iron core, including three
The individual single-phase iron core of structure identical, each single-phase iron core includes two symmetrical iron core columns and two symmetrical above and below
Iron yoke, two iron core columns and two iron yokes surround rectangular window jointly, each single-phase iron core with addition
Two single-phase iron cores are connected by the iron core column, wherein, the silicon that each single-phase iron core connects by multistage head and the tail
Steel band and non-crystaline amorphous metal tape wrapping form, the first paragraph in silicon strip and amorphous alloy strip described in multistage to the 4th section be the silicon
Steel band, remaining is the amorphous alloy strip, and the 3rd section of silicon strip in four sections of silicon strips is rectangle silicon strip, its
The remaining silicon strip is right-angled trapezium silicon strip, and the width of the rectangle silicon strip is more than the width of the right-angled trapezium silicon strip
Degree, and side of the width edge away from the rectangle silicon strip of the right-angled trapezium silicon strip positioned at the rectangle silicon strip both sides
To successively decreasing successively, each single-phase iron core also includes rectangle silicon strip pad, and the rectangle silicon strip pad is located at institute
State in the upper and lower iron yoke of single-phase iron core, and the rectangle silicon strip pad is located on the 3rd section of silicon strip in the iron yoke,
At least a piece of rectangle silicon strip pad, the every rectangle silicon steel are respectively provided between every layer of the 3rd section of silicon strip
Both sides with pad are in the width direction rectangle amorphous with the 3rd section of silicon steel welding every layer described, the amorphous alloy strip
Alloy strip.
Preferably, the silicon strip of the multistage head and the tail connection and the hop count of amorphous alloy strip are not more than 20 sections, and first paragraph
For the silicon strip close to the internal layer of the single-phase iron core, amorphous alloy strip described in final stage is located at the outer of the single-phase iron core
Layer.
Preferably, the silicon strip of the multistage head and the tail connection and the hop count of amorphous alloy strip are 15 sections, and the silicon strip
Hop count include first paragraph to the 4th section, the hop count of the amorphous alloy strip includes the 5th section to the 15th section.
Preferably, the width of the rectangle silicon strip pad is identical with the width of the 3rd section of silicon strip, the length
The length of square silicon strip pad is more than the width of the rectangular window, and less than the width and two circular arcs of the rectangular window
Arc length sum, wherein, the circular arc is the link position of the iron core column and the iron yoke, and the central angle of the circular arc is 45 °,
The radius of the circular arc is a quarter of the external diameter circular diameter of the iron core column of the single-phase iron core.
Preferably, the thickness of the rectangle silicon strip pad in 0.15mm between 0.30mm.
Preferably, the iron core column of each single-phase iron core is respectively between the iron core column of single-phase iron core two other described
Insulation grid is set and connected by binding agent.
Preferably, the outer surface of the iron core column and the iron yoke is coated with binding agent and winds insulation strip.
Preferably, one point half of insulating concrete cylinder is arranged in each iron core column of three single-phase iron cores, and
The insulating concrete cylinder and the gap perfusion binding agent of the iron core column.
Bi-material layers amorphous three phase transformer iron core provided by the utility model, employs silicon strip and non-crystaline amorphous metal two
The material that kind material, wherein amorphous alloy strip are cut into various sizes of equal in width according to the design of its characteristic is wound, and due to
Itself iron loss very little of amorphous alloy strip material, so as to greatly reduce the loss of whole three phase transformer iron core.Additionally, due to
Silicon strip hypotenuse sawing sheet is easy, therefore the first paragraph of the single-phase iron core all uses silicon strip for four sections to the mat woven of fine bamboo strips, and at the 3rd section
Every layer of the part of iron yoke up and down between all increase rectangle silicon strip pad, add the cross section of iron yoke by this way
Product, so as to reduce the magnetic flux density in iron yoke, further reduces the open circuit loss of whole three phase transformer iron core.
Brief description of the drawings
Accompanying drawing is to be further understood for providing to of the present utility model, and a part for constitution instruction, and following
Embodiment be used to explain the utility model together, but do not form to limitation of the present utility model.In the accompanying drawings：
Fig. 1 is the structural representation of bi-material layers amorphous three phase transformer iron core provided by the utility model.
Fig. 2 is the structure of the single-phase iron core of composition bi-material layers amorphous three phase transformer iron core provided by the utility model
Schematic diagram.
Fig. 3 is the silicon strip of multistage provided by the utility model head and the tail connection and the structural representation of amorphous alloy strip.
Fig. 4 is the cross-sectional view of the iron core column of single-phase iron core provided by the utility model.
Fig. 5 is the enlarged diagram of circular arc on single-phase iron core provided by the utility model and single-phase iron core.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
As one side of the present utility model, as depicted in figs. 1 and 2, there is provided a kind of three-dimensional three phase transformations of bi-material layers amorphous
Depressor iron core 10, including the single-phase iron core 100 of three structure identicals, each single-phase iron core 100 include two or so pairs
The iron core column 110 of title and two iron yokes 120 symmetrical above and below, two iron core columns 110 and two iron yokes 120 are enclosed jointly
Rectangular window 130, each single-phase iron core 100 pass through the iron core column 110 with single-phase iron core 100 two other described
Connection, wherein, each single-phase iron core 100 wind by the silicon strip 140 and amorphous alloy strip 160 of multistage head and the tail connection and
Into, first paragraph in silicon strip 140 and amorphous alloy strip 160 described in multistage to the 4th section be the silicon strip 140, remaining is
The amorphous alloy strip 160, the 3rd section of silicon strip 140 in four sections of silicon strips 140 is rectangle silicon strip 141, its
The remaining silicon strip 140 is right-angled trapezium silicon strip 142, and the width of the rectangle silicon strip 141 is more than the right-angled trapezium
The width of silicon strip 142, and the width edge of the right-angled trapezium silicon strip 142 positioned at the both sides of rectangle silicon strip 141 is remote
Direction from the rectangle silicon strip 141 is successively decreased successively, and each single-phase iron core 100 also includes rectangle silicon strip pad
150, the rectangle silicon strip pad 150 is located in the upper and lower iron yoke 120 of the single-phase iron core 100, and the rectangle silicon
Steel band pad 150 is located on the 3rd section of silicon strip in the iron yoke 120, be respectively provided between every layer of the 3rd section of silicon strip to
Few a piece of rectangle silicon strip pad 150, the both sides of the every rectangle silicon strip pad 150 in the width direction with
Every layer of the 3rd section of silicon steel welding, the amorphous alloy strip 160 is rectangle amorphous alloy strip.
Bi-material layers amorphous three phase transformer iron core provided by the utility model, employs silicon strip and non-crystaline amorphous metal two
The material that kind material, wherein amorphous alloy strip are cut into various sizes of equal in width according to the design of its characteristic is wound, and due to
Itself iron loss very little of amorphous alloy strip material, so as to greatly reduce the loss of whole three phase transformer iron core.Additionally, due to
Silicon strip hypotenuse sawing sheet is easy, therefore the first paragraph of the single-phase iron core all uses silicon strip for four sections to the mat woven of fine bamboo strips, and at the 3rd section
Every layer of the part of iron yoke up and down between all increase silicon strip pad, add the cross-sectional area of iron yoke by this way, so as to
Reduce the magnetic flux density in iron yoke, further reduce the open circuit loss of whole three phase transformer iron core.
Specifically, as depicted in figs. 1 and 2, it is complete to include three structures for the unequal section three phase transformer iron core 10
Exactly the same single-phase iron core 100, formed after each being connected between single-phase iron core 100 and the single-phase iron core 100 of another two as shown in Figure 2
Three phase transformer iron core structure, each single-phase iron core 100 includes iron core column 110 and iron yoke 120, can by Fig. 1
To find out, by taking direction shown in Fig. 1 as an example, each single-phase iron core 100 includes symmetrical iron core column 110 and right up and down
The iron yoke 120 of title, two iron core columns 110 and two iron yokes 120 surround the rectangular window 130 of centre jointly.Need
Illustrate, as shown in figure 3, the structural representation of the silicon strip 140 and amorphous alloy strip 160 for multistage head and the tail connection, more
In Duan Suoshu silicon strips, one section of silicon strip in close centre position is shaped as rectangle, and the shape of other silicon strips is
Right-angled trapezium.And the amorphous alloy strip 160 is rectangle.Wound by such silicon strip 140 and amorphous alloy strip 160
The cross section of the iron core column arrived is zigzag, the schematic diagram of the cross section of iron core column as shown in Figure 4.
It is understood that in order to further reduce the open circuit loss of three phase transformer iron core, three-phase transformer is reduced
Noise, and save the copper material that coiling is consumed.Bi-material layers amorphous three phase transformer iron core provided by the utility model
10 are put together by three identical, each independent solids of single-phase iron core 100, and each single-phase iron core 100 is by some
The various sizes of silicon strip 140 of bar and the winding of amorphous alloy strip 160 form, and first paragraph to the 4th section of band for starting winding is complete
Portion is silicon strip 140, and the band to the last wound since the 5th section is entirely amorphous alloy strip 160, each described single-phase
The cross section of the core limb 110 of iron core 100 is made up of several trapezoidal and several parallelogram, and same external
In round semicircle, the same of each parallelogram and the trapezoidal semicircle in the circumscribed circle that has a line diametrically, Mei Geping
It is 60 ° that row quadrangle, which has an interior angle,.By the 3rd section of silicon strip coiling in the upper and lower iron yoke 120 of each single-phase iron core 100
Part, all symmetrical pad is a piece of between its every layer or two panels rectangle silicon strip pad 150, rectangle silicon strip pad
The width of piece 150 is identical with the width of the 3rd section of silicon strip, and the length of the rectangle silicon strip pad 150 is more than described
The width of rectangular window 130, and less than the width and two circular arc arc length sums of the rectangular window 130, wherein, the circular arc
For the link position of the iron core column and the iron yoke, the central angle of the circular arc is 45 °, and the radius of the circular arc is the list
The a quarter of the external diameter circular diameter of the iron core column of phase iron core.Two articles of short sides of rectangle silicon strip pad 150 and the 3rd section of silicon
The Biao Mian Fen Do of steel band are welded into two straight beads, to form good flux path, so make the iron yoke of each single-phase iron core
Cross-sectional area be more than its iron core column cross-sectional area.
As a kind of specifically embodiment of the bi-material layers amorphous three phase transformer iron core, the multistage head and the tail
The silicon strip 140 of connection and the hop count of amorphous alloy strip 160 are not more than 20 sections, and silicon strip 140 described in first paragraph is close to described
The internal layer of single-phase iron core 100, amorphous alloy strip 160 described in final stage are located at the outer layer of the single-phase iron core 100.
In order that the effect for obtaining open circuit loss reduction is optimal, mode is preferably carried out as one kind, as shown in figure 3, described
The silicon strip 140 of multistage head and the tail connection and the hop count of amorphous alloy strip 160 are 15 sections, and the hop count of the silicon strip 140 includes
For first paragraph to the 4th section, the hop count of the amorphous alloy strip 160 includes the 5th section to the 15th section.
Specifically, as shown in figure 3, by taking direction shown in Fig. 3 as an example, the A1 positioned at right side to A4 sections is silicon strip 140, and A5 is extremely
A15 sections are amorphous alloy strip 160, and the 3rd section of A3 is rectangle silicon strip 141 in the silicon strip 140, and first paragraph A1, second
A2 and the 4th section of A4 of section is right-angled trapezium silicon strip 142.The right-angled trapezium silicon positioned at the upside of rectangle silicon strip 141
The width of steel band 142 gradually successively decreases along the direction away from the rectangle silicon strip 141, positioned at the downside of rectangle silicon strip 141
The width of the right-angled trapezium silicon strip 142 be also gradually to successively decrease along away from the direction of the rectangle silicon strip 141, but position
The width of right-angled trapezium silicon strip 142 is different from being located at the rectangular silicon described in multistage in the upside of rectangle silicon strip 141
The width of the silicon strip 142 of the right-angled trapezium of the downside of steel band 141.
In order that the effect for obtaining open circuit loss reduction is optimal, mode is preferably carried out as one kind, as shown in figure 3, described
Silicon strip 140 includes the silicon strips of four sections of head and the tail connections, i.e. A1 to A4 in Fig. 3, the 3rd section of silicon strip is the rectangle
Silicon strip, i.e., the A3 silicon strips shown in Fig. 3 are the rectangle silicon strip, and first paragraph silicon strip A1 is located at close to described single-phase
The internal layer of iron core, the 4th section of silicon strip A4 are located at the outer layer of the single-phase iron core, and the rectangle silicon strip pad 150 is located at institute
State on every layer of the 3rd section of silicon strip A3 in iron yoke 120.
It should be noted that as seen from Figure 3, first paragraph silicon strip A1 tail is wide with the second segment silicon strip A2 head breadth
Identical, second segment silicon strip A2 tail is wide identical with the 3rd section of silicon strip A3 head breadth, and the 3rd section of silicon strip A3 tail is wide with the
The four sections of silicon strip A4 head breadth is identical, wherein the 3rd section of silicon strip A3 head breadth is wide identical with the 3rd section of silicon strip A3 tail.
It should also be noted that, as seen from Figure 3, amorphous alloy strip 160 includes the 5th section of amorphous alloy strip A5 to the
15 sections of amorphous alloy strip A15, the width of each section of non-crystaline amorphous metal differ.
It should be appreciated that the structure of the silicon strip 140 and amorphous alloy strip 160 shown in Fig. 3 is exemplary only, and scheme
Dotted line frame in 3 is only to divide to use needed for silicon strip 140 and amorphous alloy strip 160, and is not belonging to silicon strip 140 and amorphous conjunction
A part for the structure of gold ribbon 160.
It is to be further understood that A5 to A15 width gradually successively decreases in amorphous alloy strip 160 shown in Fig. 3, i.e.,
5th section of amorphous alloy strip A5 width is most wide, and the 15th section of amorphous alloy strip A15 width is most narrow, the A5 shown in Fig. 3
To A15 only as exemplary, actual size is not offered as.
As the embodiment of the rectangle silicon strip pad 150, the width of the rectangle silicon strip pad and institute
State that the width of the 3rd section of silicon strip is identical, the length of the rectangle silicon strip pad is more than the width of the rectangular window, and
Less than the width of the rectangular window and two circular arc arc length sums, wherein, the circular arc is the iron core column and the iron yoke
Link position, the central angle of the circular arc is 45 °, the radius of the circular arc for the iron core column of the single-phase iron core external diameter circle
The a quarter of diameter.
In order to further increase the cross-sectional area of iron yoke 120, specifically, as shown in figure 5, the rectangle silicon strip pad
The width of piece 150（Not shown in figure）It is identical with the width of the 3rd section of silicon strip, the rectangle silicon strip pad 150
Length L is more than the width of the rectangular window, and less than the width and two circular arc arc length sums of the rectangular window, wherein,
As shown in figure 5, the circular arc 101 is the link position of the iron core column 110 and the iron yoke 120, the center of circle of the circular arc 101
Angle is 45 °, and the radius of the circular arc 101 is a quarter of the external diameter circular diameter of the iron core column 110 of the single-phase iron core 100.
As shown in figure 5, best results of the width of the rectangle silicon strip under above-mentioned condition limitation.
Further, the thickness of the rectangle silicon strip pad in 0.15mm between 0.30mm.
Connected in order that obtaining iron core column of the iron core column of each single-phase iron core respectively with other two single-phase iron cores
Connect, the iron core column of each single-phase iron core sets insulation grid between the iron core column of single-phase iron core two other described respectively
And connected by binding agent.
Further specifically, the outer surface of the iron core column and the iron yoke is coated with binding agent and winds insulation strip.
Preferably, one point half of insulating concrete cylinder is arranged in each iron core column of three single-phase iron cores, and
The insulating concrete cylinder and the gap perfusion binding agent of the iron core column.
As depicted in figs. 1 and 2, the bi-material layers amorphous three phase transformer iron core 10 is identical single-phase by three
The solid of iron core 100 is put together, and each single-phase iron core 100 is by some various sizes of amorphous alloy strips 160 and silicon strip
140 windings are formed, and the cross section of its iron core column 110 is made up of several trapezoidal and several parallelogram, and same
In the semicircle of individual circumscribed circle, the window of each single-phase iron core is rectangle.
When carrying out coiling to the bi-material layers amorphous three phase transformer iron core, according to required different sizes, use
Non-crystaline amorphous metal strip is cut in slitter slitting, and silicon strip is cut with cutting machine hypotenuse.When these various sizes of amorphous alloy strips
After material and silicon strip are ready to, it is possible to start to wind.The winding pellet of rectangle is arranged on the swiveling head of up- coiler.First exist
Silicon strip is wound on pellet, is wound up into the 4th section from first paragraph successively, when being wound to the 3rd section, in its iron yoke part up and down
On every layer between all one to two rectangle silicon strip pads of pad, two short sides difference of the rectangle silicon strip pad
With the surface soldered of the 3rd section of silicon strip of this layer, two straight beads are formed.Single-phase iron core after four sections of winding will first be carried out
Anneal for the first time, in-furnace temperature is controlled between 800-820 degree Celsius, and vacuum is maintained at below 100 pas.It is single-phase after annealing
Iron core is installed on up- coiler again carries out second of winding, winds, is wound up into always non-since the 5th section of amorphous alloy strip
Untill peritectic alloy band final stage, then drop it off again and second of annealing is carried out in annealing furnace.Control for Kiln Temperature is in 350- Celsius
Between 400 degree, nitrogen is used in stove（N2）Protection, single-phase iron core surface after annealing will brushing glue sealing fix, then three
Individual single-phase iron core solid assembly is got up, and pad insulation grid, each winds iron core column and iron yoke with insulating tape between piece, ties
Tightly.A point of insulating concrete cylinder partly on set in each iron core column of bi-material layers amorphous three phase transformer iron core, insulation
Infusion epoxy resin is adhesively fixed in the gap of cylinder and iron core column.
It is understood that embodiment of above is merely to illustrate that principle of the present utility model and used exemplary
Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (8)
1. a kind of bi-material layers amorphous three phase transformer iron core, including three single-phase iron cores of structure identical, each list
Phase iron core includes two symmetrical iron core columns and two iron yokes symmetrical above and below, described in two iron core columns and two
Iron yoke surrounds rectangular window jointly, and each single-phase iron core is connected with single-phase iron core two other described by the iron core column
Connect, it is characterised in that each single-phase iron core forms by the silicon strip and non-crystaline amorphous metal tape wrapping of multistage head and the tail connection, more
First paragraph in Duan Suoshu silicon strips and amorphous alloy strip to the 4th section be the silicon strip, remaining is the non-crystaline amorphous metal
Band, the 3rd section of silicon strip in four sections of silicon strips is rectangle silicon strip, and remaining described silicon strip is right-angled trapezium
Silicon strip, the width of the rectangle silicon strip is more than the width of the right-angled trapezium silicon strip, and is located at the rectangle silicon strip
The width of the right-angled trapezium silicon strip of both sides successively decreases successively along the direction away from the rectangle silicon strip, each described single-phase
Iron core also includes rectangle silicon strip pad, and the rectangle silicon strip pad is located in the upper and lower iron yoke of the single-phase iron core,
And the rectangle silicon strip pad is located on the 3rd section of silicon strip in the iron yoke, between every layer of the 3rd section of silicon strip
At least a piece of rectangle silicon strip pad is respectively provided with, the both sides of the every rectangle silicon strip pad are equal in the width direction
With the 3rd section of silicon steel welding every layer described, the amorphous alloy strip is rectangle amorphous alloy strip.
2. bi-material layers amorphous three phase transformer iron core according to claim 1, it is characterised in that the multistage head and the tail
The silicon strip of connection and the hop count of amorphous alloy strip are not more than 20 sections, and silicon strip described in first paragraph is close to the single-phase iron core
Internal layer, amorphous alloy strip described in final stage are located at the outer layer of the single-phase iron core.
3. bi-material layers amorphous three phase transformer iron core according to claim 2, it is characterised in that the multistage head and the tail
The silicon strip of connection and the hop count of amorphous alloy strip are 15 sections, and the hop count of the silicon strip includes first paragraph to the 4th section, institute
Stating the hop count of amorphous alloy strip includes the 5th section to the 15th section.
4. bi-material layers amorphous three phase transformer iron core as claimed in any of claims 1 to 3, its feature exist
In the width of the rectangle silicon strip pad is identical with the width of the 3rd section of silicon strip, the rectangle silicon strip pad
The length of piece is more than the width of the rectangular window, and is less than the width and two circular arc arc length sums of the rectangular window, its
In, the circular arc is the link position of the iron core column and the iron yoke, and the central angle of the circular arc is 45 °, the circular arc
Radius is a quarter of the external diameter circular diameter of the iron core column of the single-phase iron core.
5. bi-material layers amorphous three phase transformer iron core according to claim 4, it is characterised in that the rectangle silicon
The thickness of steel band pad is in 0.15mm between 0.30mm.
6. bi-material layers amorphous three phase transformer iron core according to claim 4, it is characterised in that each described single-phase
The iron core column of iron core sets insulation grid between the iron core column of single-phase iron core two other described and connected by binding agent respectively
Connect.
7. bi-material layers amorphous three phase transformer iron core according to claim 4, it is characterised in that the iron core column and
The outer surface of the iron yoke is coated with binding agent and winds insulation strip.
8. bi-material layers amorphous three phase transformer iron core according to claim 4, it is characterised in that three described single-phase
One point half of insulating concrete cylinder is arranged in each iron core column of iron core, and between the insulating concrete cylinder and the iron core column
Gap irrigates binding agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720665234.7U CN206806148U (en) | 2017-06-08 | 2017-06-08 | Bi-material layers amorphous three phase transformer iron core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103988A (en) * | 2017-06-08 | 2017-08-29 | 吴茂安 | Bi-material layers amorphous three phase transformer iron core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103988A (en) * | 2017-06-08 | 2017-08-29 | 吴茂安 | Bi-material layers amorphous three phase transformer iron core |
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Granted publication date: 20171226 Effective date of abandoning: 20180824 |