CN105702424B - A kind of amorphous alloy oil immersion type transformer and preparation method thereof of noise reduction and resistance to shorting - Google Patents
A kind of amorphous alloy oil immersion type transformer and preparation method thereof of noise reduction and resistance to shorting Download PDFInfo
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- CN105702424B CN105702424B CN201610256005.XA CN201610256005A CN105702424B CN 105702424 B CN105702424 B CN 105702424B CN 201610256005 A CN201610256005 A CN 201610256005A CN 105702424 B CN105702424 B CN 105702424B
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- 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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- 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
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- 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
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
Abstract
The present invention provides the amorphous alloy oil immersion type transformers of a kind of noise reduction and resistance to shorting, including iron core, winding coil, folder and fuel tank；The iron core has even numbers, point two layers of setting；The first insulating layer is equipped between two layers of iron core；The cutting plane up and down of each iron core is coated with insulation glue-line；The surface of the winding coil be equipped with reinforce stay, and winding coil surface be banded with reinforcing without latitude band；Bottom and top on the winding coil are equipped with iron yoke cushion block；Two layers of iron core is set in together mutually with the winding coil；The iron yoke cushion block surface opposite with iron core is additionally provided with second insulating layer；The folder surface is equipped with folder reinforcing plate；It also is provided with reinforcing band steel on the fuel tank.The production method that the present invention has further related to the transformer.The transformer of the present invention improves it to noise and bears sudden short circuit two performance levels of aspect, it is ensured that the examination and safe operation that transformer passes through type approval test.
Description
Technical field
The present invention relates to distribution transformer technical fields, and in particular to a kind of amorphous alloy oil immersion type of noise reduction and resistance to shorting
The production method of the structure of transformer and the transformer.
Background technology
Existing amorphous alloy oil immersion type transformer, universal architecture are：The amorphous that epoxy resin is coated with by surface closes
Golden iron core, the steel plate bending welding of the high-tension coil and low-voltage coil, 3~6mm long of coiling is made on insulating board skeleton
Folder is assembled without the fuel tank of reinforcing.The amorphous alloy oil immersion type transformer product of the prior art is carrying out inspection
When experiment, noise and the qualification rate born when sudden short circuit is tested are relatively low, and coil and folder are susceptible to during experiment
The problems such as deformation, fuel tank leakage of oil.
Existing patent document CN105097234 discloses a kind of resistance to shorting amorphous alloy oil immersion type transformer and its preparation
Method, this method realize the effect of resistance to shorting using the coil for reinforcing insulation thickness.But as present power grid is to amorphous
The requirement of alloy oil immersion type transformer is higher and higher, and existing amorphous alloy oil immersion type transformer has centainly noise reduction and resistance to shorting
Humidification, but there is also larger risk, hardly consistent with requiring higher and higher noise and bear sudden short circuit experiment
Examination, seriously affected the safety of distribution network.
Sudden short circuit energy is born for this reason, it may be necessary to provide one kind and have to reduce transformer noise and transformer can be enhanced simultaneously
The novel amorphous alloy oil immersion type transformer of power, it is ensured that amorphous alloy oil immersion type transformer being capable of examining by type approval test
Core, durability is more preferably.
Invention content
Present disclosure is to provide a kind of amorphous alloy oil immersion type transformer of special construction and preparation method thereof, it is intended to
Overcome the anti-acoustic capability of the amorphous alloy oil immersion type transformer of the prior art low and the defect of anti-sudden short circuit poor performance, promotes production
The performance of product, and improve percent of pass of the product in quality testing experiment.
The present invention adopts the following technical scheme that：
The present invention provides the amorphous alloy oil immersion type transformer of a kind of noise reduction and resistance to shorting, including iron core, in insulation bone
The folder and fuel tank of the winding coil, fixed iron core and winding coil of coiling on frame；Particularly：The iron core has even numbers,
Each iron core is rectangle being prepared by amorphous alloy strips, annular in shape；The cutting plane up and down of each iron core is coated with absolutely
Edge glue-line；The even numbers iron core, which divides two layers, to be stacked, and the first insulating layer is equipped between two layers of iron core；The table of the winding coil
Face be equipped with reinforce stay, and winding coil surface be banded with reinforcing without latitude band；Bottom and top on the winding coil
It is equipped with iron yoke cushion block；Two layers of iron core is set in together mutually with the winding coil；The iron yoke cushion block and iron core
Opposite surface is additionally provided with second insulating layer.
Preferably, the insulation glue-line on the cutting plane up and down coated in the iron core is preferably 3M glue；3M glue has
Stronger retractility can prevent iron core from cracking, and reduce the noise generated when iron core operation.
Preferably, the material of the insulation framework is preferably expoxy glass Steel material.
Preferably, the stay is preferably phenolic aldehyde paper board material.Stay can enhance the anti-short circuit capability of winding coil, ensure
Winding coil is not damaged when carrying out sudden short circuit experiment.
Preferably, first insulating layer and the thickness of second insulating layer are no less than 6mm；And first insulating layer and
The material of two insulating layers preferably passes through the molding epoxy plate material of working process.
In order to further, the folder, which uses, to be formed after the carbon steel plate bending and molding of 8mm thickness；The folder
Surface soldered has several folder reinforcing plates.The folder of this design strengthens the endurance of its own, ensures under the interference of external force
It is indeformable.
The fuel tank is formed using corrugated steel；It is equipped on the inner surface and outer surface of the fuel tank several
Reinforce band steel；The length for reinforcing band steel × wide be preferably dimensioned to be 10mm × 50mm.The reinforcement design of fuel tank can prevent ripple
Steel plate is deformed in the case where there is external force during the test, avoids the problem that fuel tank leakage of oil occurs.
The technical program by the following means, makes anti-noise and the enhancing of anti-sudden short circuit ability of transformer：(1) setting is double-deck
Iron core and the first insulating layer is provided between two layers of iron core, than conventional monolayers thicken iron core tolerance it is stronger.
Since amorphous band raw material width is limited, existing strip width only has tri- kinds of 142mm, 170mm, 213mm, is designing
When, the width of iron core is usually fixed, and two layers of iron core is stacked together by selection can just optimally reach the iron that design needs
Heart sectional area；And the insulating Design between iron core and two layers has important influence to the tolerance performance of transformer.(2) by around
Stay is set on group coil and is reinforced without latitude band.(3) it after winding coil and iron core set install, is fastened with folder；And
Further, folder uses the reinforcing folder that its surfaces externally and internally is equipped with folder reinforcing plate so that if folder is by it
The face that dry block folder reinforcing plate and iron core surface form Multi-angle omnibearing contacts, than traditional folder fastening performance more preferably.
(4) fuel tank is formed using corrugated steel, and several reinforcement band steels also are provided on its interior outer surface, can both position iron core and winding
Coil can also reinforce tolerance performance of the fuel tank itself to high pressure.
In addition, the present invention has further related to a kind of system of the amorphous alloy oil immersion type transformer of noise reduction and resistance to shorting
Make method, includes the following steps：
(1) iron core of cyclic annular rectangle is made of amorphous alloy strips；And on the cutting plane up and down of iron core, avoid splicing mouth
Insulation glue-line is respectively coated in place；
(2) the coiling winding coil in insulation framework, the coiling height of the winding coil and the height one of insulation framework
It causes；After winding coil coiling, the stay that phenolic aldehyde paper board material is prepared into is arranged on the surface of winding coil, nothing is then used
Latitude band compresses and binds coiling；
(3) even numbers iron core is used, even numbers iron core is divided into two layers and is stacked, it is many that thickness is placed between two layers of iron core
In the first insulating layer of 6mm；Iron yoke cushion block is bound on the surface of winding coil；The side of winding coil is adjacent in iron yoke cushion block
Second insulating layer is arranged in opposite side surface；Two layers of iron core and the winding coil of respective numbers are set in together mutually；So
The iron core and winding coil that set installs are clamped using the folder reinforced afterwards and fixed with tie-rod；The folder of the reinforcement is
The surface for referring to folder is equipped with several folder reinforcing plates；
(4) high-voltage connection and low-voltage lead are installed on the winding coil obtained by step (3), is then placed into fuel tank
In, and the high-voltage connection and low-voltage lead is made to be connect respectively with the case lid of fuel tank, then by fuel tank joint sealing and vacuumize and
Injection transformer oil.
Preferably, the iron core described in step (1), is prepared in the following manner：
A) iron core of circlewise rectangle is fixed after amorphous alloy strips shearing with template；
B) pass through annealing temperature be 340 DEG C~380 DEG C, annealing time 6~7 hours, soaking time 2 hours, cooling time
1.5 hours technique completes annealing heat preservation cooling process；
C) iron core after cooling, in the insulation glue material coating of the surface of iron core, is coated with insulating in addition to spelling interface
The iron core of glue-line is dried on assembly line baking oven, and oven temperature is 70 DEG C~90 DEG C, and drying time is 2 hours.
Preferably, the winding coil described in step (2), is prepared in the following manner：
A) it uses expoxy glass Steel material to heat moulding by casting, integrated insulation framework is formed after cooling；
B) by copper foil by the winding coil of regulation the number of turns coiling circlewise rectangle in insulation framework；Four of winding coil
Width is used to be bound without latitude band for 10mm at angle；5 are placed respectively on the relatively narrow surface in two, the outside of winding coil
Stay, then use 1.2mm it is thick compress stay without latitude band, shape to winding coil, toasted 8 hours in 140 DEG C of environment,
Make winding coil drying forming.
Preferably, the assembling method of the iron core described in step (3) and winding coil is：
A) winding coil is put into assembly bench, iron yoke cushion block is tied up respectively in the upper and lower end of winding coil,
Again together by the winding coil of A, B, C three-phase patch, it is bound with tape；
B) the splicing mouth for opening iron core, the iron core of first layer is first covered be fitted into successively in winding coil；Iron core and winding wire
After snare installs, the spelling interface of iron core is closed；The first insulating layer sheared is laid on to the iron core surface of first layer
On；
C) according to the method for step b), the iron core of the second layer is covered on the surface of the first insulating layer and is packed into winding coil
In；
D) insulating board is wrapped on iron core surface；Described two layers of iron core is formed whole after being installed with winding coil set
Body, be on surface iron core each side on folder is installed respectively and the folder of each side is connected into fastening with screw rod.
Preferably, the concrete operations of the step (4) are as follows：
A) high-voltage connection and low-voltage lead on the winding coil are installed respectively, are then placed in baking oven, at 140 DEG C
Toast drying in 18 hours；After drying, high-voltage connection and low-voltage lead are connect with the case lid of fuel tank respectively；
B) after the offset plate that 10mm thickness is placed in the bottom of fuel tank, iron core and winding coil is integrally hung in fuel tank, are used in combination
Fuel tank is sealed and is fastened by bolt；
C) inside of fuel tank is vacuumized, in the case that then vacuum degree is 50Pa in fuel tank, carries out vacuum impregnating
Oily process.
The beneficial effects of the present invention are：It is compared with existing amorphous alloy oil immersion type transformer, change provided by the present invention
Depressor improves it to noise and bears sudden short circuit two performance levels of aspect, it is ensured that the examination that transformer passes through type approval test
And safe operation.
Description of the drawings
Fig. 1 be embodiment transformer in single iron core stereogram；
Fig. 2 be embodiment transformer in winding coil vertical view；
Fig. 3 be embodiment transformer in winding coil stereogram；
Fig. 4 be embodiment transformer in iron yoke cushion block structural schematic diagram；
Fig. 5 be embodiment transformer in the first folder structure chart；
Fig. 6 be embodiment transformer in the second folder structure chart；
Fig. 7 be embodiment transformer in fuel tank structure chart；
Fig. 8 is the schematic diagram of the three-phase windings coil in the transformer of embodiment；
Fig. 9 is the structural schematic diagram of the three-phase windings coil and iron core suit in the transformer of embodiment；
Figure 10 is the structural schematic diagram after three-phase windings coil, iron core and folder installation in the transformer of embodiment；
Figure 11 is the schematic diagram after the transformer assembling of embodiment；
Reference numeral：1- iron cores；101- iron cores splice mouth；2- insulation glue-lines；3- insulation frameworks；401-A phase winding coils；
402-B phase winding coils；403-C phase winding coils；5- stays；6- is without latitude band；7- iron yoke cushion blocks；The first folders of 8-；801-
One folder reinforcing plate；The second folders of 9-；902- the second folder reinforcing plates；10- fuel tanks；1001- reinforces band steel；11- second insulate
Layer；The first insulating layers of 12-；13- high-voltage connections；14- low-voltage leads.
Specific implementation mode
The present embodiment combination attached drawing, the technical solution that the present invention will be described in detail：
As shown in Figure 1 to 11, it is the amorphous alloy oil immersion type change of a kind of noise reduction and resistance to shorting of technical solution of the present invention
Depressor.The primary structure of the transformer includes：Several iron cores 1, A phase windings coil 401, B phase windings coil 402, C phases around
Group coil 403 and fuel tank 10.
As shown in Figure 1, for the structural schematic diagram of single iron core 1.Iron core 1 is prepared by amorphous alloy strips, is in
Cyclic annular rectangle.Iron core splicing mouth 101 is preset on iron core 1；The cutting plane up and down of iron core 1 is avoided applying at iron core splicing mouth 101
It is covered with insulation glue-line 2.The material of the insulation glue-line 2 is the good 3M glue of retractility.
As shown in Figures 2 and 3, each winding coil is the winding in insulation framework 3 made of coiling
The surface of coil be equipped with reinforce stay 5, and the surface of winding coil be banded with reinforcing without latitude band 6, the thickness of no latitude band 6
To be no less than 1.2mm.The material of the insulation framework 3 is expoxy glass Steel material.The stay 5 is preferably phenolic aldehyde paper sheet
Material.The winding coil for being equipped with stay 5 has preferable anti-short circuit capability.
As shown in Figure 5 and Figure 6, the respectively structural schematic diagram of the first folder 8 and the second folder 9.As shown as it can be seen that first
The surface of folder 8 is equipped with several first folder reinforcing plates 801, and the surface of the second folder also is provided with several second folder reinforcing plates
901.First folder 8 and the second folder 9, which have been all made of, to be formed after the carbon steel plate bending and molding of 8mm thickness.Folder is welded with to add
The folder of strong plate, the endurance of its own are reinforced, are ensured indeformable under the interference of external force.
As shown in fig. 7, the fuel tank 10 is formed using corrugated steel.The inner surface and outside table of the fuel tank 10
Several reinforcement band steels 1001 are equipped on face.Length × wide the size for reinforcing band steel 1001 is 10mm × 50mm.Fuel tank 10 adds
It can prevent corrugated steel from being deformed during the test in the case where there is external force if reinforcing the design of band steel, fuel tank is avoided to leak
The problem of oil occurs.
The amorphous alloy oil immersion type distribution transformer that the present embodiment is provided, is prepared particular by following steps
's：
(1) iron core 1 is prepared：A) after amorphous alloy strips shearing circlewise rectangle is fixed with template；B) and then by annealing
Temperature is 340 DEG C~380 DEG C, annealing time 6~7 hours, soaking time 2 hours, the technique of 1.5 hours cooling times, complete
Annealing heat preservation cooling process；C) iron core after cooling, in the insulation glue material coating of the surface of iron core, will apply in addition to spelling interface
The iron core for being covered with insulation glue-line is dried on assembly line baking oven, and oven temperature is 70 DEG C~90 DEG C, and drying time is 2 hours；
(2) winding coil is prepared：A) it uses expoxy glass Steel material to heat moulding by casting, forms the insulation of one after cooling
Skeleton 3；B) by copper foil by the winding of regulation the number of turns coiling circlewise rectangle in insulation framework 3, the coiling height of winding with absolutely
Edge skeleton 3 it is highly consistent；C) 5 stays 5 are placed respectively on the relatively narrow surface in two, the outside of winding coil, then
Stay 5 is compressed without latitude band 6 with 1.2mm thickness, and uses width to be bound without latitude band for 10mm at four angles of winding coil,
It shapes to winding coil；D) it is toasted 8 hours in 140 DEG C of environment, makes winding coil drying forming；The stay 5 is phenolic aldehyde
Paper board material；
(3) such as Fig. 8, A phase windings coil 401, B phase windings coil 402 and C phase windings coil 403 are set together, used
Tape is bound；And iron yoke cushion block 7 is respectively arranged on the bottom and top of winding coil, and iron yoke cushion block 7 with
The opposite side for the side that winding coil is affixed is equipped with the second insulating layer 11 that thickness is no less than 6mm；The second insulating layer 11
Material is by the molding epoxy plate material of working process；
(4) such as Fig. 9, several iron cores 1 is divided two layers and are stacked, thickness is no less than 6mm the is equipped between two layers of iron core 1
One insulating layer 12 opens iron core and splices mouth 101, by several iron cores 1 and A phase windings coil 401, B phase windings coil 402 and C
Phase winding coil 403 is set with, and is then closed iron core spelling interface；It has been set with two layers of iron core successively；It is described
The material of first insulating layer 12 is by the molding epoxy plate material of working process；
(5) such as Figure 10, the iron core 1 and A phase windings coil 401, B phase windings coil 402 and C phase winding coils installed in set
403 whole periphery is fixedly clamped with the first folder 8 and the second folder 9 respectively；First folder 8 and the second folder 9 pass through spiral shell
Bar is strained and fixed；First folder 8, which is surface soldered, has the first folder reinforcing plate 801, the second folder 9 to have for surface soldered
Second folder reinforcing plate 901；
(6) high-voltage connection 13 and low-voltage lead 14 are installed：A) and then in A phase windings coil 401,402 and of B phase windings coil
High-voltage connection 13 and low-voltage lead 14 are installed respectively on C phase windings coil 403, is then placed in baking oven, are toasted at 140 DEG C
Drying in 18 hours；B) the bottom of fuel tank 10 place 10mm thickness offset plate after, by after the volume drying of iron core and winding coil again
It is positioned in fuel tank 10, and the high-voltage connection 13 and low-voltage lead 14 is made to be connect respectively with the case lid of fuel tank 10；C) spiral shell is used
The case where fuel tank 10 is sealed and is fastened by bolt, is vacuumized to the inside of fuel tank 10, and then vacuum degree is 50Pa in fuel tank 10
Under, carry out vacuum oil process.
Claims (4)
1. a kind of production method of the amorphous alloy oil immersion type transformer of noise reduction and resistance to shorting, it is characterised in that including following step
Suddenly：
(1) iron core of cyclic annular rectangle is made of amorphous alloy strips；And on the cutting plane up and down of iron core, avoid splicing mouth punishment
Tu Fu not insulate glue-line；
(2) the coiling winding coil in insulation framework, the coiling height of the winding coil and insulation framework it is highly consistent；Around
After group coil winding, the stay that phenolic aldehyde paper board material is prepared into is arranged on the surface of winding coil, then with no latitude band
It compresses and binds coiling；
(3) even numbers iron core is used, even numbers iron core is divided into two layers and is stacked, thickness is placed between two layers of iron core and is no less than
The first insulating layer of 6mm；Iron yoke cushion block is bound on the surface of winding coil；The phase of the side of winding coil is adjacent in iron yoke cushion block
Second insulating layer is arranged in an anti-side surface；Two layers of iron core and the winding coil of respective numbers are set in together mutually；Then
The iron core and winding coil that set installs are clamped using the folder of reinforcement and fixed with tie-rod；The folder of the reinforcement refers to
The surface of folder is equipped with several folder reinforcing plates；
(4) high-voltage connection and low-voltage lead are installed on the winding coil obtained by step (3), be then placed into fuel tank, and
So that the high-voltage connection and low-voltage lead is connect respectively with the case lid of fuel tank, then by fuel tank joint sealing and vacuumizes and inject change
Depressor oil；
Wherein, the winding coil described in step (2), is prepared in the following manner：
A) it uses expoxy glass Steel material to heat moulding by casting, integrated insulation framework is formed after cooling；
B) by copper foil by the winding coil of regulation the number of turns coiling circlewise rectangle in insulation framework；At four angles of winding coil
Width is used to be bound without latitude band for 10mm；Place 5 supports respectively on the relatively narrow surface in two, the outside of winding coil
Item, then use 1.2mm it is thick compress stay without latitude band, shape to winding coil, toasted 8 hours in 140 DEG C of environment, make around
Group coil drying forming.
2. the production method of the amorphous alloy oil immersion type transformer of a kind of noise reduction as described in claim 1 and resistance to shorting, special
Sign is that the iron core described in step (1) is prepared in the following manner：
A) iron core of circlewise rectangle is fixed after amorphous alloy strips shearing with template；
B) pass through annealing temperature be 340 DEG C~380 DEG C, annealing time 6~7 hours, soaking time 2 hours, cooling time 1.5 it is small
When technique, complete annealing heat preservation cooling process；
C) iron core after cooling, in the insulation glue material coating of the surface of iron core, is coated with insulation glue-line in addition to spelling interface
Iron core dried on assembly line baking oven, oven temperature be 70 DEG C~90 DEG C, drying time be 2 hours.
3. the production method of the amorphous alloy oil immersion type transformer of a kind of noise reduction as described in claim 1 and resistance to shorting, special
Sign is that the assembling method of iron core and winding coil described in step (3) is：
A) winding coil is put into assembly bench, iron yoke cushion block is tied up respectively in the upper and lower end of winding coil, then will
A, the winding coil patch of B, C three-phase together, is bound with tape；
B) the splicing mouth for opening iron core, the iron core of first layer is first covered be fitted into successively in winding coil；Iron core and winding wire snare
After installing, the spelling interface of iron core is closed；The first insulating layer sheared is laid on the iron core surface of first layer；
C) according to the method for step b), the iron core of second layer set is fitted into winding coil on the surface of the first insulating layer；
D) insulating board is wrapped on iron core surface；The entirety that described two layers of iron core is formed after being installed with winding coil set,
Surface fastens to install folder on each side of iron core respectively and being connected the folder of each side with screw rod.
4. the production method of the amorphous alloy oil immersion type transformer of a kind of noise reduction as described in claim 1 and resistance to shorting, special
Sign is that the concrete operations of the step (4) are as follows：
A) high-voltage connection and low-voltage lead on the winding coil are installed respectively, are then placed in baking oven, is toasted at 140 DEG C
Drying in 18 hours；After drying, high-voltage connection and low-voltage lead are connect with the case lid of fuel tank respectively；
B) after the offset plate that 10mm thickness is placed in the bottom of fuel tank, iron core and winding coil are integrally hung in fuel tank, blending bolt
Fuel tank is sealed and is fastened；
C) inside of fuel tank is vacuumized, in the case that then vacuum degree is 50Pa in fuel tank, carries out vacuum oil process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256005.XA CN105702424B (en) | 2016-04-21 | 2016-04-21 | A kind of amorphous alloy oil immersion type transformer and preparation method thereof of noise reduction and resistance to shorting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610256005.XA CN105702424B (en) | 2016-04-21 | 2016-04-21 | A kind of amorphous alloy oil immersion type transformer and preparation method thereof of noise reduction and resistance to shorting |
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| CN105702424B true CN105702424B (en) | 2018-10-19 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957697A (en) * | 2016-07-27 | 2016-09-21 | 吴江变压器有限公司 | Amorphous ally transformer winding structure with high short circuit resistance |
| CN106981349A (en) * | 2017-03-22 | 2017-07-25 | 宁波奥克斯高科技有限公司 | A kind of resistance to shorting structure of amorphous alloy transformer |
| CN108806924B (en) * | 2017-05-05 | 2024-01-23 | 特变电工智能电气有限责任公司 | Short-circuit-resistant amorphous alloy transformer and manufacturing method thereof |
| CN109817434B (en) * | 2017-11-22 | 2021-07-16 | 许继变压器有限公司 | Amorphous alloy transformer and winding assembly thereof |
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