CN105702424A - Amorphous-alloy oil-immersed transformer capable of noise reduction and short-circuit resistance and fabrication method of amorphous-alloy oil-immersed transformer - Google Patents
Amorphous-alloy oil-immersed transformer capable of noise reduction and short-circuit resistance and fabrication method of amorphous-alloy oil-immersed transformer Download PDFInfo
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- CN105702424A CN105702424A CN201610256005.XA CN201610256005A CN105702424A CN 105702424 A CN105702424 A CN 105702424A CN 201610256005 A CN201610256005 A CN 201610256005A CN 105702424 A CN105702424 A CN 105702424A
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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
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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
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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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
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
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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
- H01F27/266—Fastening or mounting the core on casing or support
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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
- H01F27/28—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
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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
- H01F41/04—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
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Abstract
The invention provides an amorphous-alloy oil-immersed transformer capable of noise reduction and short-circuit resistance. The amorphous-alloy oil-immersed transformer comprises iron cores, winding coils, clamping elements and an oil tank, wherein even numbers of the iron cores are arranged in two layers, a first insulation layer is arranged between the two layers of iron cores, the upper cross section and the lower cross section of each iron core are coated with insulation adhesive layers, reinforcement support strips are arranged on the surfaces of the winding coils, the surfaces of the winding coils are bonded with reinforcement weftless tapes, iron yoke cushion blocks are arranged at the bottoms and the tops of the winding coils, the two layers of iron cores and the winding coils are sleeved together, second insulation layers are further arranged on the surfaces, opposite to the iron cores, of the iron yoke cushion blocks, clamping element reinforcement plates are arranged on the surfaces of the clamping elements, and reinforcement flat steel is arranged on the oil tank. The invention also provides a fabrication method of the transformer. By the transformer, the two performance levels of noise and abrupt short-circuit bearing are improved, and the transformer is enabled to pass through check and safety running of a type test.
Description
Technical field
The present invention relates to distribution transformer technical field, be specifically related to the structure of the amorphous alloy oil immersion type transformator of a kind of noise reduction and anti-short circuit and the manufacture method of this transformator。
Background technology
Existing amorphous alloy oil immersion type transformator, its universal architecture is: had the amorphous alloy core of epoxy resin by surface-coated, on insulating board skeleton the steel plate bending of the high-tension coil of coiling and low-voltage coil, 3～6mm length weld make folder, be assembled without the fuel tank reinforced。The amorphous alloy oil immersion type power transformer product of prior art, when carrying out censorship test, its noise is relatively low with qualification rate when bearing sudden short circuit test, easily occurs coil and folder deformation, fuel tank seepage wet goods problem in process of the test。
Existing patent documentation CN105097234 discloses a kind of anti-short circuit amorphous alloy oil immersion type transformator and preparation method thereof, and the method adopts the coil of reinforced insulation material thickness to realize the effect of anti-short circuit。But, along with present electrical network is more and more higher to the requirement of amorphous alloy oil immersion type transformator, noise reduction and anti-short circuit are had certain potentiation by existing amorphous alloy oil immersion type transformator, but there is also bigger risk, hardly consistent with requiring increasingly higher noise and bearing the examination of sudden short circuit test, have a strong impact on the safety of distribution network。
Possess reduction transformer noise for this reason, it may be necessary to provide a kind of and simultaneously can strengthen transformator and bear the novel amorphous alloy oil immersion type transformator of sudden short circuit ability, it is ensured that amorphous alloy oil immersion type transformator can by the examination of type approval test, and ruggedness is more preferably。
Summary of the invention
Present disclosure amorphous alloy oil immersion type transformator being to provide a kind of special construction and preparation method thereof, it is intended to overcome the anti-acoustic capability of the amorphous alloy oil immersion type transformator of prior art low and the defect of anti-sudden short circuit poor performance, the performance of improving product, and improve product percent of pass in quality testing is tested。
The present invention adopts the following technical scheme that
The invention provides the amorphous alloy oil immersion type transformator of a kind of noise reduction and anti-short circuit, including iron core, in insulation framework the folder of the winding coil of coiling, fixed iron core and winding coil and fuel tank；Especially: described iron core has even numbers, each iron core to be prepared from by amorphous alloy strips, rectangle in the form of a ring；The cutting plane up and down of each iron core is coated with insulation glue-line；A described even numbers point two-layer unshakable in one's determination stacks, and is provided with the first insulating barrier between the iron core of two-layer；The surface of described winding coil is provided with the stay of reinforcing, and winding coil surface is banded with the band without latitude of reinforcing；Bottom and top on described winding coil are equipped with iron yoke cushion block；Described two-layer is unshakable in one's determination and described winding coil is set in together mutually；The surface that described iron yoke cushion block is relative with iron core is additionally provided with the second insulating barrier。
Preferably, the insulation glue-line being coated on the cutting plane up and down of described iron core described in is preferably 3M glue；3M glue has stronger retractility, it is possible to prevent cracking unshakable in one's determination, the noise produced when reducing unshakable in one's determination operation。
Preferably, the material of described insulation framework is preferably expoxy glass Steel material。
Preferably, described stay is preferably paper phenol panel material。Stay can strengthen the anti-short circuit capability of winding coil, it is ensured that winding coil is not damaged by when carrying out sudden short circuit test。
Preferably, the thickness of described first insulating barrier and the second insulating barrier is no less than 6mm；And first the material of insulating barrier and the second insulating barrier preferably past the epoxy plate material of processed molding。
In order to further, described folder is formed after have employed the carbon steel plate bending and molding that 8mm is thick；The surface soldered of described folder has some folders to strengthen plate。The folder of this design strengthens the holding capacity of himself, it is ensured that indeformable under the interference of external force。
Described fuel tank is to adopt corrugated steel composition；The inner surface of described fuel tank and outer surface are equipped with some reinforcement band steels；The length of described reinforcement band steel × wide is preferably dimensioned to be 10mm × 50mm。The reinforcement of fuel tank is designed to prevent corrugated steel from deforming when there being external force in process of the test, it is to avoid the problem of fuel tank leakage of oil occurs。
The technical program by the following means, makes the anti-noise of transformator and anti-sudden short circuit ability strengthen: (1) arranges the iron core of bilayer and is provided with the first insulating barrier between the iron core of two-layer, and the tolerance more unshakable in one's determination than what conventional monolayers thickeied is higher。Owing to amorphous band raw material width limits to some extent, existing strip width only has 142mm, 170mm, 213mm tri-kinds, when design, width unshakable in one's determination is usually fixing, and selecting is stacked together two-layer iron core just can optimally reach the area of core section that design needs；And the tolerance performance of transformator is had important impact by the insulating Design between iron core and two-layer。(2) by arranging stay on winding coil and reinforcing without latitude band。(3) after winding coil and set unshakable in one's determination install, fastened with folder；And further, folder have employed its surfaces externally and internally be equipped with folder strengthen plate reinforcing folder so that folder is to strengthen plates by its some pieces of folders to contact with the face of formation Multi-angle omnibearing in surface unshakable in one's determination, than traditional folder fastening performance more preferably。(4) fuel tank adopts corrugated steel composition, and also is provided with some reinforcement band steels in it on outer surface, both can position iron core and winding coil, it is also possible to strengthen the fuel tank self the tolerance performance to high pressure。
Additionally, the present invention has further related to the manufacture method of the amorphous alloy oil immersion type transformator of a kind of noise reduction and anti-short circuit, comprise the following steps:
(1) iron core of ring-type rectangle is made of amorphous alloy strips；And on cutting plane up and down unshakable in one's determination, avoid splicing mouth place and be respectively coated with insulation glue-line；
(2) coiling winding coil in insulation framework, the coiling height of described winding coil is highly consistent with insulation framework；After winding coil coiling, stay prepared by paper phenol panel material is arranged on the surface of winding coil, then compresses and colligation coiling with without latitude band；
(3) adopt even numbers unshakable in one's determination, even numbers iron core is divided into two-layer and stacks, between the iron core of two-layer, place the thickness the first insulating barrier no less than 6mm；Iron yoke cushion block is bound on the surface of winding coil；It is adjacent to the opposite side surface of the side of winding coil at iron yoke cushion block, the second insulating barrier is set；The winding coil of the iron core of two-layer Yu respective numbers is set in together mutually；Then the folder adopting reinforcement will overlap the iron core installed and winding coil clamping and fixes with tie-rod；The folder of described reinforcement refers to that the surface of folder is provided with some folders and strengthens plate；
(4) on the winding coil of step (3) gained, high-voltage connection and low-voltage lead are installed, it is then placed in fuel tank, and make described high-voltage connection and low-voltage lead be connected with the case lid of fuel tank respectively, then by fuel tank joint sealing evacuation and injection transformer oil。
Preferably, the iron core described in step (1), it is prepared from the following manner:
A) iron core of ring-type rectangle it is fixed into after amorphous alloy strips shearing by template；
B) annealed temperature be 340 DEG C～380 DEG C, annealing time 6～7 hours, temperature retention time 2 hours, the technique of 1.5 hours cool times, complete annealing insulation refrigerating work procedure；
C) iron core after cooling is except spelling seam, is coated with at surface unshakable in one's determination insulating cement material, and the iron core being coated with insulation glue-line is dried on streamline 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), it is prepared from the following manner:
A) expoxy glass Steel material heating moulding by casting, shape all-in-one-piece insulation framework after cooling are adopted；
B) Copper Foil is turned in insulation framework by the regulation number of turn winding coil of ring-type rectangle；The colligation of band without latitude that four angles place of winding coil adopts width to be 10mm；5 stays are placed on the surface of two relative narrower in outside of winding coil respectively, then compresses stay with band without latitude thick for 1.2mm, winding coil is shaped, toast 8 hours in the environment of 140 DEG C, make winding coil drying forming。
Preferably, the iron core described in step (3) with the assembling method of winding coil is:
A) winding coil is put in assembly bench, iron yoke cushion block is tied up respectively the upper and lower end at winding coil, then the winding coil of A, B, C three-phase is pasted together, good with tape colligation；
B) open the splicing mouth of iron core, first the iron core of ground floor is overlapped successively in loading winding coil；Spelling seam unshakable in one's determination is closed after installing by unshakable in one's determination and winding coil set；The first insulating barrier sheared is laid on the surface unshakable in one's determination of ground floor；
C) according to the method for step b), the set unshakable in one's determination of the second layer is loaded in winding coil by the surface of the first insulating barrier；
D) insulating board is wrapped on surface unshakable in one's determination；The entirety that the iron core of described two-layer and winding coil set are formed after installing, is respectively mounted folder on each side that surface is unshakable in one's determination and with screw rod, the folder of each side is connected fastening。
Preferably, the concrete operations of described step (4) are as follows:
A) on described winding coil, it is respectively mounted high-voltage connection and low-voltage lead, is then placed in baking oven, toast at 140 DEG C 18 hours and dry；After drying, high-voltage connection and low-voltage lead are connected with the case lid of fuel tank respectively；
B) after the thick offset plate of 10mm is placed in the bottom of fuel tank, iron core and winding coil entirety are hung in fuel tank, and with bolt, fuel tank is sealed fastening；
C) inside of fuel tank is carried out evacuation, then vacuum is 50Pa in fuel tank, carry out vacuum oil operation。
The beneficial effects of the present invention is: contrast with existing amorphous alloy oil immersion type transformator, transformator provided by the present invention improves it and to noise and bears two performance levels of sudden short circuit aspect, it is ensured that transformator passes through examination and the safe operation of type approval test。
Accompanying drawing explanation
Fig. 1 is axonometric chart unshakable in one's determination single in the transformator of embodiment；
Fig. 2 be embodiment transformator in the top view of winding coil；
Fig. 3 be embodiment transformator in the axonometric chart of winding coil；
Fig. 4 be embodiment transformator in the structural representation of iron yoke cushion block；
Fig. 5 be embodiment transformator in the structure chart of the first folder；
Fig. 6 be embodiment transformator in the structure chart of the second folder；
Fig. 7 be embodiment transformator in the structure chart of fuel tank；
Fig. 8 is the schematic diagram of the three-phase windings coil in the transformator of embodiment；
Fig. 9 is the structural representation of the three-phase windings coil in the transformator of embodiment and suit unshakable in one's determination；
Figure 10 is the structural representation after the three-phase windings coil in the transformator of embodiment, iron core and folder are installed；
Figure 11 is the schematic diagram after the transformator assembling of embodiment；
Accompanying drawing labelling: 1-is unshakable in one's determination；101-iron core splicing mouth；2-insulate glue-line；3-insulation framework；401-A phase winding coil；402-B phase winding coil；403-C phase winding coil；5-stay；6-is without latitude band；7-iron yoke cushion block；8-the first folder；801-the first folder strengthens plate；9-the second folder；902-the second folder strengthens plate；10-fuel tank；1001-strengthens band steel；11-the second insulating barrier；12-the first insulating barrier；13-high-voltage connection；14-low-voltage lead。
Detailed description of the invention
The present embodiment, in conjunction with accompanying drawing, describes technical scheme in detail:
As shown in Figure 1 to 11, for the amorphous alloy oil immersion type transformator of a kind of noise reduction of technical solution of the present invention and anti-short circuit。The primary structure of described transformator includes: several iron cores 1, A phase winding coil 401, B phase winding coil 402, C phase winding coil 403 and fuel tank 10。
As it is shown in figure 1, be the single structural representation of unshakable in one's determination 1。Unshakable in one's determination 1 is prepared from by amorphous alloy strips, rectangle in the form of a ring。Splicing mouth 101 unshakable in one's determination it is preset with on unshakable in one's determination 1；The cutting plane up and down of unshakable in one's determination 1, avoid splicing mouth 101 place unshakable in one's determination and be coated with insulation glue-line 2。The material of described insulation glue-line 2 is the 3M glue that retractility is good。
As shown in Figures 2 and 3, each described winding coil all in insulation framework 3 coiling form, the surface of described winding coil is provided with the stay 5 of reinforcing, and the surface of winding coil is banded with the band without latitude 6 of reinforcing, without latitude with 6 thickness be no less than 1.2mm。The material of described insulation framework 3 is expoxy glass Steel material。Described stay 5 is preferably paper phenol panel material。The winding coil being equipped with stay 5 has preferably anti-short circuit capability。
As shown in Figure 5 and Figure 6, the structural representation of respectively the first folder 8 and the second folder 9。Visible as shown, the surface of the first folder 8 is provided with some first folders and strengthens plate 801, and the surface of the second folder also is provided with some second folders and strengthens plate 901。First folder 8 and the second folder 9 are formed after all have employed the carbon steel plate bending and molding that 8mm is thick。Being welded with folder and strengthen the folder of plate, the holding capacity of himself is strengthened, it is ensured that indeformable under the interference of external force。
As it is shown in fig. 7, described fuel tank 10 is to adopt corrugated steel composition。The inner surface of described fuel tank 10 and outer surface are equipped with some reinforcement band steels 1001。The length of described reinforcement band steel 1001 × wide is of a size of 10mm × 50mm。Fuel tank 10 add strengthen band steel be designed to prevent corrugated steel from deforming when there being external force in process of the test, it is to avoid the problem of fuel tank leakage of oil occurs。
The amorphous alloy oil immersion type distribution transformer that the present embodiment provides, is prepared from particular by following steps:
(1) preparation 1:a unshakable in one's determination) amorphous alloy strips is fixed into ring-type rectangle by template after shearing；B) be then passed through annealing temperature be 340 DEG C～380 DEG C, annealing time 6～7 hours, temperature retention time 2 hours, the technique of 1.5 hours cool times, complete annealing insulation refrigerating work procedure；C) iron core after cooling is except spelling seam, is coated with at surface unshakable in one's determination insulating cement material, and the iron core being coated with insulation glue-line is dried on streamline baking oven, and oven temperature is 70 DEG C～90 DEG C, and drying time is 2 hours；
(2) winding coil is prepared: a) adopt expoxy glass Steel material heating moulding by casting, shape all-in-one-piece insulation framework 3 after cooling；B) Copper Foil turns to the winding of ring-type rectangle by the regulation number of turn in insulation framework 3, and the coiling height of winding is highly consistent with insulation framework 3；C) on the surface of two relative narrower in outside of winding coil, place 5 stays 5 respectively, then compress stay 5 colligation of band without latitude adopting width to be 10mm at four angles place of winding coil with the band without latitude 6 that 1.2mm is thick, winding coil is shaped；D) toast 8 hours in the environment of 140 DEG C, make winding coil drying forming；Described stay 5 is paper phenol panel material；
(3) such as Fig. 8, A phase winding coil 401, B phase winding coil 402 and C phase winding coil 403 are set together, good with tape colligation；And on the bottom and top of winding coil, be respectively arranged with iron yoke cushion block 7, and it is provided with the thickness the second insulating barrier 11 no less than 6mm in the opposition side of the side that iron yoke cushion block 7 and winding coil are affixed；The material of described second insulating barrier 11 is the epoxy plate material through processed molding；
(4) such as Fig. 9, several 1 point of two-layers unshakable in one's determination are stacked, the thickness the first insulating barrier 12 no less than 6mm it is provided with between the iron core 1 of two-layer, open splicing mouth 11 unshakable in one's determination, several iron cores 1 are set with A phase winding coil 401, B phase winding coil 402 and C phase winding coil 403, then iron core are spelled seam and close；It is set with two-layer successively unshakable in one's determination；The material of described first insulating barrier 12 is the epoxy plate material through processed molding；
(5) such as Figure 10, overlapping the iron core 1 and the overall periphery of A phase winding coil 401, B phase winding coil 402 and C phase winding coil 403 that install, it is fixedly clamped with the first folder 8 and the second folder 9 respectively；First folder 8 and the second folder 9 are fixed each through tie-rod；Described first folder 8 has the first folder to strengthen plate 801 for surface soldered, and the second folder 9 has the second folder to strengthen plate 901 for surface soldered；
(6) high-voltage connection 13 and low-voltage lead 14:a are installed) then on A phase winding coil 401, B phase winding coil 402 and C phase winding coil 403, it is respectively mounted high-voltage connection 13 and low-voltage lead 14, it is then placed in baking oven, toasts at 140 DEG C 18 hours and dry；B) after the thick offset plate of 10mm is placed in the bottom of fuel tank 10, it is positioned over again in fuel tank 10 after the volume drying with winding coil unshakable in one's determination, and makes described high-voltage connection 13 and low-voltage lead 14 be connected with the case lid of fuel tank 10 respectively；C) with bolt, fuel tank 10 is sealed fastening, the inside of fuel tank 10 is carried out evacuation, then vacuum is 50Pa in fuel tank 10, carries out vacuum oil operation。
Claims (10)
1. an amorphous alloy oil immersion type transformator for noise reduction and anti-short circuit, including iron core, in insulation framework the folder of the winding coil of coiling, fixed iron core and winding coil and fuel tank；It is characterized in that: described iron core has even numbers, each iron core to be prepared from by amorphous alloy strips, rectangle in the form of a ring；The cutting plane up and down of each iron core is coated with insulation glue-line；A described even numbers point two-layer unshakable in one's determination stacks, and is provided with the first insulating barrier between the iron core of two-layer；The surface of described winding coil is provided with the stay of reinforcing, and winding coil surface is banded with the band without latitude of reinforcing；Bottom and top on described winding coil are equipped with iron yoke cushion block；Described two-layer is unshakable in one's determination and described winding coil is set in together mutually；The surface that described iron yoke cushion block is relative with iron core is additionally provided with the second insulating barrier。
2. the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 1 and anti-short circuit, it is characterised in that: the thickness of described first insulating barrier and the second insulating barrier is no less than 6mm。
3. the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 1 and anti-short circuit, it is characterised in that: the material of described folder is carbon steel plate；The surface soldered of described folder has some folders to strengthen plate。
4. the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 1 and anti-short circuit, it is characterised in that: described fuel tank is to adopt corrugated steel composition；The inner surface of described fuel tank and outer surface are equipped with some reinforcement band steels。
5. the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 1 and anti-short circuit, it is characterised in that: described in be coated on the cutting plane up and down of described iron core insulation glue-line be 3M glue。
6. the manufacture method of the amorphous alloy oil immersion type transformator of a noise reduction and anti-short circuit, it is characterised in that comprise the following steps:
(1) iron core of ring-type rectangle is made of amorphous alloy strips；And on cutting plane up and down unshakable in one's determination, avoid splicing mouth place and be respectively coated with insulation glue-line；
(2) coiling winding coil in insulation framework, the coiling height of described winding coil is highly consistent with insulation framework；After winding coil coiling, stay prepared by paper phenol panel material is arranged on the surface of winding coil, then compresses and colligation coiling with without latitude band；
(3) adopt even numbers unshakable in one's determination, even numbers iron core is divided into two-layer and stacks, between the iron core of two-layer, place the thickness the first insulating barrier no less than 6mm；Iron yoke cushion block is bound on the surface of winding coil；It is adjacent to the opposite side surface of the side of winding coil at iron yoke cushion block, the second insulating barrier is set；The winding coil of the iron core of two-layer Yu respective numbers is set in together mutually；Then the folder adopting reinforcement will overlap the iron core installed and winding coil clamping and fixes with tie-rod；The folder of described reinforcement refers to that the surface of folder is provided with some folders and strengthens plate；
(4) on the winding coil of step (3) gained, high-voltage connection and low-voltage lead are installed, it is then placed in fuel tank, and make described high-voltage connection and low-voltage lead be connected with the case lid of fuel tank respectively, then by fuel tank joint sealing evacuation and injection transformer oil。
7. the manufacture method of the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 6 and anti-short circuit, it is characterised in that the iron core described in step (1), is prepared from the following manner:
A) iron core of ring-type rectangle it is fixed into after amorphous alloy strips shearing by template；
B) annealed temperature be 340 DEG C～380 DEG C, annealing time 6～7 hours, temperature retention time 2 hours, the technique of 1.5 hours cool times, complete annealing insulation refrigerating work procedure；
C) iron core after cooling is except spelling seam, is coated with at surface unshakable in one's determination insulating cement material, and the iron core being coated with insulation glue-line is dried on streamline baking oven, and oven temperature is 70 DEG C～90 DEG C, and drying time is 2 hours。
8. the manufacture method of the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 6 and anti-short circuit, it is characterised in that the winding coil described in step (2), is prepared from the following manner:
A) expoxy glass Steel material heating moulding by casting, shape all-in-one-piece insulation framework after cooling are adopted；
B) Copper Foil is turned in insulation framework by the regulation number of turn winding coil of ring-type rectangle；The colligation of band without latitude that four angles place of winding coil adopts width to be 10mm；5 stays are placed on the surface of two relative narrower in outside of winding coil respectively, then compresses stay with band without latitude thick for 1.2mm, winding coil is shaped, toast 8 hours in the environment of 140 DEG C, make winding coil drying forming。
9. the manufacture method of the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 6 and anti-short circuit, it is characterised in that the assembling method of the iron core described in step (3) and winding coil is:
A) winding coil is put in assembly bench, iron yoke cushion block is tied up respectively the upper and lower end at winding coil, then the winding coil of A, B, C three-phase is pasted together, good with tape colligation；
B) open the splicing mouth of iron core, first the iron core of ground floor is overlapped successively in loading winding coil；Spelling seam unshakable in one's determination is closed after installing by unshakable in one's determination and winding coil set；The first insulating barrier sheared is laid on the surface unshakable in one's determination of ground floor；
C) according to the method for step b), the set unshakable in one's determination of the second layer is loaded in winding coil by the surface of the first insulating barrier；
D) insulating board is wrapped on surface unshakable in one's determination；The entirety that the iron core of described two-layer and winding coil set are formed after installing, is respectively mounted folder on each side that surface is unshakable in one's determination and with screw rod, the folder of each side is connected fastening。
10. the manufacture method of the amorphous alloy oil immersion type transformator of a kind of noise reduction as claimed in claim 6 and anti-short circuit, it is characterised in that the concrete operations of described step (4) are as follows:
A) on described winding coil, it is respectively mounted high-voltage connection and low-voltage lead, is then placed in baking oven, toast at 140 DEG C 18 hours and dry；After drying, high-voltage connection and low-voltage lead are connected with the case lid of fuel tank respectively；
B) after the thick offset plate of 10mm is placed in the bottom of fuel tank, iron core and winding coil entirety are hung in fuel tank, and with bolt, fuel tank is sealed fastening；
C) the inside evacuation to fuel tank, then vacuum is 50Pa in fuel tank, carries out vacuum oil operation。
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Address after: 528241 No. 15, Shunjing Avenue, zone B, Lishui hegui Industrial Park, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Zhongyan Magnetoelectric Technology Co.,Ltd. Address before: 528241 No. 15, Shunjing Avenue, zone B, Lishui hegui Industrial Park, Nanhai District, Foshan City, Guangdong Province Patentee before: FOSHAN ZHONGYAN AMORPHOUS TECHNOLOGY Co.,Ltd. |
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