CN107833728B - Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab - Google Patents
Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab Download PDFInfo
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- CN107833728B CN107833728B CN201711039350.9A CN201711039350A CN107833728B CN 107833728 B CN107833728 B CN 107833728B CN 201711039350 A CN201711039350 A CN 201711039350A CN 107833728 B CN107833728 B CN 107833728B
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- hemicone
- metab
- welding
- transformer oil
- oil filled
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- 239000012212 insulator Substances 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003466 welding Methods 0.000 claims abstract description 56
- 239000003921 oil Substances 0.000 claims description 41
- 229910052573 porcelain Inorganic materials 0.000 claims description 22
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 229920002521 macromolecule Polymers 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 229910001283 5083 aluminium alloy Inorganic materials 0.000 claims description 3
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000003746 surface roughness Effects 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 239000004576 sand Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
- F16L5/10—Sealing by using sealing rings or sleeves only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- 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
-
- 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
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
Abstract
The sealing structure and encapsulating method of a kind of transformer oil filled bushing insulator with metab, comprising: hemicone I, hemicone II, positioning mechanism, the gap site between cone I and hemicone II is by being welded and fixed.Due to the semicircle wimble structure similar with hemicone II of hemicone I, according to the size of ceramic tube and metab, each hemicone I is linked together with metal base by welding manner with hemicone II, it is ensured that transformer oil will not be leaked from this side.Later, by complete two semicircle wimble structures butt welding, have block it is high-efficient, bond strength is high, the characteristics of can implementing under non-power failure.
Description
Technical field
The present invention relates to transformer technology fields, and in particular to a kind of transformer oil filled bushing insulator is the same as the close of metab
Seal structure and encapsulating method.
Background technique
Bushing shell for transformer is one of main component of transformer, is the primary insulation device outside transformer tank, transformer around
The lead-out wire of group has to pass through insulating sleeve, makes to insulate between lead-out wire and between lead-out wire and transformer case, while rising solid
Determine the effect of lead-out wire.Oil filled bushing is mostly used in 35kV grades of transformers, it be it is oil-filled in porcelain bushing shell, conduction is installed in porcelain bushing shell
Copper bar, porcelain bushing shell are connected with Al-alloy metal pedestal, and metab passes through flange again and connects with transformer-cabinet.
However in practical applications, it due to manufacturing quality, operation oil temperature and variation of ambient temperature etc., frequently results in
Insulator not only causes oily pollution to transformer, but also return transformer with there is permeability phenomenon at aluminum alloy base combination interface
Normal operation causes security risk.It is main at present that closure processing is carried out using high-intensitive macromolecule glue, using macromolecule glue coating
It is prevented at permeability at faying face of the metab with porcelain bushing shell.But due to the area of the position metal part faying face compared with
It is small, and an angle of 90 degrees degree is formed with porcelain bushing shell, constructional difficulties are often resulted in, glue is inadequate with the bond strength of matrix, causes to block
Failure.
Summary of the invention
Have to overcome the above deficiencies, the invention provides one kind and blocks that high-efficient, bond strength is high, it can be
Sealing structure and encapsulating method of the transformer oil filled bushing insulator implemented under non-power failure with metab.
The present invention overcomes the technical solution used by its technical problem to be:
A kind of sealing structure of transformer oil filled bushing insulator with metab, comprising:
Hemicone I is set on the outside of porcelain bushing shell, and lower end is fixedly welded on metab；
Hemicone II is set on the outside of porcelain bushing shell, and lower end is fixedly welded on metab；
Hemicone I is connect relatively and is sealingly fastened on the outside of porcelain bushing shell, the half cone with hemicone II by positioning mechanism
After body I is connect with hemicone II by positioning mechanism, circular cone structure is formed, it is internal to form taper hole；
Gap site between the hemicone I and hemicone II is by being welded and fixed.
Further, above-mentioned positioning mechanism includes being respectively arranged at the locating piece I of I left and right sides of hemicone and setting respectively
It is placed in the locating piece II of II left and right sides of hemicone, is fastened after screw bolt passes locating piece I and locating piece II by nut lock
It is fixed.
It further, further include the glue-line for being set to hemicone I and hemicone II and metab faying face position.
It further, further include the industrial oil suction cotton pad for the leak source being layed on metab.
Further, above-mentioned hemicone I and hemicone II are made of 5083 aluminium alloys or 6061 aluminium alloys.
A kind of transformer oil filled bushing insulator includes the following steps: with the encapsulating method of metab
A) inner wall of the hemicone I of the sealing structure in claim 1 and hemicone II is subjected to sandblasting using quartz sand
Processing, makes Ry50-100 μm of its surface roughness；
B) hemicone I and hemicone II are installed on around porcelain bushing shell relatively, are fixed by positioning mechanism；
C) hemicone I and II lower end of hemicone are connected and fixed with metab by welding；
D) hemicone I and hemicone II are subjected to butt welding；
E) weld after the completion of after the temperature of metab and sealing structure is cooled to 40 DEG C or less, by macromolecule glue into
Row leak stopping operation.
Further, ER5356 welding wire, gage of wire 2.0mm, using exchange tungsten electrode argon are selected in step c) when welding
Arc welding, welding current 150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
Further, ER5356 welding wire, gage of wire 2.0mm, using exchange tungsten electrode argon are selected in step d) when welding
Arc welding, welding current 150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
It further, further include being laid with after step e) in hemicone I and hemicone II and metab faying face position
Industry oil suction cotton pad made of polypropylene non-woven fabric.
Further, further include after being laid with industrial oil suction cotton pad the coating of the binding site of porcelain bushing shell and metab by
The adhesive layer that modified epoxy base-material and curing agent are formed, after adhesive layer solidification, by the modified epoxy base of silicon containing steel
The coating uniform that material and curing agent are formed is applied on adhesive layer, and coating extends 2-10cm to porcelain bushing shell side, to hemicone I and
The inner wall side of hemicone II extends 2-15cm.
The beneficial effects of the present invention are: due to the semicircle wimble structure similar with hemicone II of hemicone I, according to ceramic tube and gold
Belong to the size of pedestal, each hemicone I is linked together with metal base by welding manner with hemicone II, it is ensured that transformer
Oil will not be leaked from this side.Later, by completing the butt welding of two semicircle wimble structures, have and block high-efficient, knot
It is high to close intensity, the characteristics of can implementing under non-power failure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transformer oil filler pipe insulator and pedestal position；
Fig. 2 is the structural schematic diagram of sealing device of the invention；
In figure, 1. porcelain bushing shell, 2. metab, 3. hemicone, I 4. hemicone, II 5. locating piece, I 6. locating piece II 7.
8. nut of bolt.
Specific embodiment
With reference to the accompanying drawing 1, the present invention will be further described for attached drawing 2.
The sealing structure of a kind of transformer oil filled bushing insulator with metab, comprising: hemicone I 3 is set to insulator
1 outside of pipe, lower end is fixedly welded on metab 2；Hemicone II 4, is set to 1 outside of porcelain bushing shell, and lower end welding is solid
Due on metab 2；Hemicone I 3 connect relatively with hemicone II 4 and is sealingly fastened in porcelain bushing shell 1 by positioning mechanism
Outside after hemicone I 3 is connect with hemicone II 4 by positioning mechanism, forms circular cone structure, internal to form taper hole；Half
Gap site between cone I 3 and hemicone II 4 is by being welded and fixed.Due to hemicone I 3 similar with hemicone II 4 half
Conical structure, according to the size of ceramic tube 1 and metab 2, each hemicone I 3 passes through with hemicone II 4 with metal base
Welding manner links together, it is ensured that transformer oil will not be leaked from this side.Later, by completing two semicircle wimble structures
Butt welding, have block it is high-efficient, bond strength is high, the characteristics of can implementing under non-power failure.Entire method be
After completion hemicone I and hemicone II pass through welding with metal base, the butt welding of two semicircle wimble structures, Zhi Houzai are completed
It completes macromolecule glue to block, the description of the preceding paragraph has ambiguity, it is proposed that should be " each hemicone I and the same metal base of hemicone II
It is linked together by welding manner, completes the butt welding of two semicircle wimble structures later, then leakage is blocked using macromolecule glue
Oily position, it is ensured that transformer oil will not be leaked from this side.It is high-efficient with closure, bond strength is high, can be in non-power failure shape
The characteristics of implementing under state.
Preferably, positioning mechanism includes being respectively arranged at the locating piece I 5 of I 3 left and right sides of hemicone and being respectively set
Locating piece II 6 in II 4 left and right sides of hemicone, bolt 7 pass through nut after sequentially passing through locating piece I 5 and locating piece II 6
8 are locked.Hemicone I 3 is fixedly connected with hemicone II 4 with nut 8 by bolt 7, structure is simple, install convenient.
It preferably, further include the glue-line for being set to hemicone I 3 and hemicone II 4 and 2 faying face position of metab.
Closure at face is combined using macromolecule glue, increases the bond strength of macromolecule glue by semicircle wimble structure.This method is logical
Design specialized plugging device is crossed, the bonded area for blocking glue is expanded.It can also include the leak source being layed on metab 2
Industrial oil suction cotton pad.Using oil sucting pad buffering oil liquid exudation, can to avoid exudation oil directly with high-molecule metal be glued touching and
Leading to the bond strength of plugged zone reduces.
Preferably, above-mentioned hemicone I 3 and hemicone II 4 are made of 5083 aluminium alloys or 6061 aluminium alloys.
Specifically realized to transformer oil filled bushing insulator using above-mentioned sealing structure with the encapsulating method of metab, packet
Include following steps:
A) inner wall of the hemicone I 3 of the sealing structure in claim 1 and hemicone II 4 is carried out using quartz sand
Blasting treatment makes Ry50-100 μm of its surface roughness.
B) hemicone I 3 and hemicone II 4 are installed on around porcelain bushing shell 1 relatively, are fixed by positioning mechanism.
C) hemicone I 3 and II 4 lower end of hemicone are connected and fixed with metab 2 by welding.
D) hemicone I 3 and hemicone II 4 are subjected to butt welding.
E) after the completion of welding after the temperature of metab 2 and sealing structure is cooled to 40 DEG C or less, pass through macromolecule glue
Leak stopping operation is carried out, using the temperature of infrared temperature-measuring gun measurement metab.
Preferably, ER5356 welding wire, gage of wire 2.0mm, using exchange tungsten argon arc are selected in step c) when welding
Weldering welding, welding current 150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
Preferably, ER5356 welding wire, gage of wire 2.0mm, using exchange tungsten argon arc are selected in step d) when welding
Weldering welding, welding current 150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
It further, further include after step e) at hemicone I 3 and hemicone II 4 and 2 faying face position of metab
It is laid with industry oil suction cotton pad made of polypropylene non-woven fabric.Using industrial oil suction cotton pad make casing during permeability first by
The oil absorbent material adsorbs the transformer oil leaked out, and the oil of exudation is avoided directly to be glued touching with high-molecule metal and lead to plugged zone
Bond strength reduce.
It further, further include being coated after being laid with industrial oil suction cotton pad in the binding site of porcelain bushing shell 1 and metab 2
The adhesive layer formed by modified epoxy base-material and curing agent, after adhesive layer solidification, by the modified epoxy of silicon containing steel
The coating uniform that base-material and curing agent are formed is applied on adhesive layer, and coating extends 2-10cm to 1 side of porcelain bushing shell, to hemicone
I 3 and hemicone II 4 inner wall side extend 2-15cm.Further increase sealing effect.Entire method is to complete hemicone I
After passing through welding with metal base with hemicone II, the butt welding of two semicircle wimble structures is completed, completes macromolecule again later
Glue blocks, it is ensured that transformer oil will not be leaked from this side.It is high-efficient with closure, bond strength is high, can be in non-power failure shape
The characteristics of implementing under state.
Claims (10)
1. a kind of transformer oil filled bushing insulator is the same as the sealing structure of metab characterized by comprising
Hemicone I (3) is set on the outside of porcelain bushing shell (1), and lower end is fixedly welded on metab (2)；
Hemicone II (4) is set on the outside of porcelain bushing shell (1), and lower end is fixedly welded on metab (2)；
Hemicone I (3) is connect relatively and is sealingly fastened on the outside of porcelain bushing shell (1), institute with hemicone II (4) by positioning mechanism
It states after hemicone I (3) connect with hemicone II (4) by positioning mechanism, forms circular cone structure, it is internal to form taper hole；
Gap site between the hemicone I (3) and hemicone II (4) is by being welded and fixed.
2. transformer oil filled bushing insulator according to claim 1 is the same as the sealing structure of metab, it is characterised in that: institute
Positioning mechanism is stated including being respectively arranged at the locating piece I (5) at left and right sides of hemicone I (3) and being respectively arranged at hemicone II
(4) locating piece II (6) at left and right sides of, bolt (7) sequentially pass through locating piece I (5) and locating piece II (6) afterwards by nut (8)
It is locked.
3. transformer oil filled bushing insulator according to claim 1 or 2 exists with the sealing structure of metab, feature
In: it further include the glue-line for being set to hemicone I (3) and hemicone II (4) and metab (2) faying face position.
4. transformer oil filled bushing insulator according to claim 1 or 2 exists with the sealing structure of metab, feature
In: it further include the industrial oil suction cotton pad for the leak source being layed on metab (2).
5. transformer oil filled bushing insulator according to claim 1 is the same as the sealing structure of metab, it is characterised in that: institute
Hemicone I (3) and hemicone II (4) is stated to be made of 5083 aluminium alloys or 6061 aluminium alloys.
6. a kind of transformer oil filled bushing insulator is the same as the encapsulating method of metab, which comprises the steps of:
A) inner wall of the hemicone I (3) of the sealing structure in claim 1 and hemicone II (4) is sprayed using quartz sand
Sand processing, makes Ry50-100 μm of its surface roughness；
B) hemicone I (3) and hemicone II (4) are installed on around porcelain bushing shell (1) relatively, are fixed by positioning mechanism；
C) hemicone I (3) and hemicone II (4) lower end are connected and fixed with metab (2) by welding；
D) hemicone I (3) and hemicone II (4) are subjected to butt welding；
E) weld after the completion of after the temperature of metab (2) and sealing structure is cooled to 40 DEG C or less, by macromolecule glue into
Row leak stopping operation.
7. transformer oil filled bushing insulator according to claim 6 is the same as the encapsulating method of metab, it is characterised in that: step
ER5356 welding wire is selected when rapid c) middle welding, gage of wire 2.0mm is welded using ac tungsten inert gases welding, and welding current is
150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
8. transformer oil filled bushing insulator according to claim 7 is the same as the encapsulating method of metab, it is characterised in that: step
ER5356 welding wire is selected when rapid d) middle welding, gage of wire 2.0mm is welded using ac tungsten inert gases welding, and welding current is
150A-220A, protective gas use 99.99% argon gas, and water cooled welding torch is used when welding.
9. transformer oil filled bushing insulator according to claim 7 is the same as the encapsulating method of metab, it is characterised in that: also
It is included in after step e) and is laid with polypropylene non-woven in hemicone I (3) and hemicone II (4) and metab (2) faying face position
Industry oil suction cotton pad made of cloth.
10. transformer oil filled bushing insulator according to claim 9 is the same as the encapsulating method of metab, it is characterised in that:
It further include being coated in porcelain bushing shell (1) and the binding site of metab (2) by modified epoxy tree after being laid with industrial oil suction cotton pad
The adhesive layer that aliphatic radical material and curing agent are formed, after adhesive layer solidification, by the modified epoxy base-material and curing agent of silicon containing steel
The coating uniform of formation is applied on adhesive layer, and extends 2-15cm to the inner wall side of hemicone I (3) and hemicone II (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039350.9A CN107833728B (en) | 2017-10-31 | 2017-10-31 | Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711039350.9A CN107833728B (en) | 2017-10-31 | 2017-10-31 | Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107833728A CN107833728A (en) | 2018-03-23 |
| CN107833728B true CN107833728B (en) | 2019-05-07 |
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| CN201711039350.9A Active CN107833728B (en) | 2017-10-31 | 2017-10-31 | Sealing structure and encapsulating method of the transformer oil filled bushing insulator with metab |
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| CN110822082B (en) * | 2019-11-27 | 2021-06-22 | 国网山东省电力公司电力科学研究院 | Oil leakage plugging device and method for coil equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202817215U (en) * | 2012-10-10 | 2013-03-20 | 盐城市勇驰汽车电器有限公司 | Insulating sleeve pipe |
| US9450164B2 (en) * | 2013-03-13 | 2016-09-20 | Varian Semiconductor Equipment Associates, Inc. | High voltage busing for cryogenics applications |
| CN103850653B (en) * | 2014-02-17 | 2016-04-20 | 胜利油田孚瑞特石油装备有限责任公司 | The manufacture method of insulation oil sleeve pipe |
| CN203941800U (en) * | 2014-07-21 | 2014-11-12 | 红旗集团温州变压器有限公司 | The sleeve pipe of oil-filled transformer and the hermetically-sealed construction of case lid |
| CN206471791U (en) * | 2017-01-24 | 2017-09-05 | 常州安凯特电缆有限公司 | Prefabricated sealing insulating oil structure for oil-filled outdoor cable terminal |
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2017
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| Publication number | Publication date |
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| CN107833728A (en) | 2018-03-23 |
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