CN105355344A - High-voltage bushing and processing technology thereof - Google Patents
High-voltage bushing and processing technology thereof Download PDFInfo
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- CN105355344A CN105355344A CN201510964821.1A CN201510964821A CN105355344A CN 105355344 A CN105355344 A CN 105355344A CN 201510964821 A CN201510964821 A CN 201510964821A CN 105355344 A CN105355344 A CN 105355344A
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- conducting rod
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- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- 239000004744 fabric Substances 0.000 claims abstract description 57
- 239000003822 epoxy resin Substances 0.000 claims abstract description 18
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 18
- 239000000835 fiber Substances 0.000 claims description 40
- 239000007769 metal material Substances 0.000 claims description 36
- 239000011248 coating agent Substances 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 24
- 239000004593 Epoxy Substances 0.000 claims description 22
- 239000012774 insulation material Substances 0.000 claims description 21
- 238000007747 plating Methods 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 241000196324 Embryophyta Species 0.000 claims description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000011135 tin Substances 0.000 claims description 12
- 229910052718 tin Inorganic materials 0.000 claims description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 10
- 238000001879 gelation Methods 0.000 claims description 10
- 238000007654 immersion Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 238000005238 degreasing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 7
- 229920000742 Cotton Polymers 0.000 claims description 6
- 235000010469 Glycine max Nutrition 0.000 claims description 6
- 244000068988 Glycine max Species 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 6
- 239000006229 carbon black Substances 0.000 claims description 6
- 239000004745 nonwoven fabric Substances 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 5
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- 235000014692 zinc oxide Nutrition 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 206010020843 Hyperthermia Diseases 0.000 claims description 4
- 230000036031 hyperthermia Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 4
- 238000004804 winding Methods 0.000 abstract 2
- 238000005470 impregnation Methods 0.000 abstract 1
- 239000005030 aluminium foil Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/26—Lead-in insulators; Lead-through insulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
Landscapes
- Insulators (AREA)
Abstract
The invention relates to a high-voltage bushing and a processing technology thereof. A capacitor electrode of the high-voltage bushing adopts one or more of conductive fabric, a conductive net and conductive yarn. The processing technology of the high-voltage bushing comprises steps as follows: an insulating layer is prepared in a winding manner firstly, and a capacitor electrode layer is prepared in a winding manner; the steps are repeated alternately until a core is formed; finally, vacuum impregnation is performed, and the high-voltage bushing is formed. According to the high-voltage bushing and the processing technology thereof, the conductive fabric, the conductive net or the conductive yarn is adopted as the capacitor electrode, and epoxy resin or insulating oil can smoothly run through the capacitor electrode and is fused with the insulating layer; the dielectric loss of the high-voltage bushing is reduced from 5 permillage to 3 permillage, the magnitude of partial discharge is reduced from the value lower than 10 pC to the value lower than5 pC, the insulating property is improved by higher than 10%, and the qualified rate of production is increased to be higher than 90% from 40%.
Description
Technical field
The present invention relates to bushing and the processing technology thereof of power transmission and transformation industry.
Background technology
At present, power transmission and transformation industry bushing used has oil immersed type and dry type two kinds of structures, and the insulating barrier of dry sleeve structure mainly contains the modes such as glue leaching wrinkle paper mold, glue leaching glass fiber winding-type and glue leaching synthetic fiber cloth.The capacitance electrode that the fuse of these products adopts is aluminium foil, and when fuse rolls, capacitance electrode and insulating barrier are alternately arranged.Because aluminium foil is easy to break, easily tear, the tightness rolled is difficult to control, all require very high to the performance of equipment and the operant level of workman, more seriously insulating oil or epoxy resin can not pass aluminium foil, aluminium foil can not well and insulating barrier melt and form an entirety, fuse inside easily produces the defect such as bubble, layering, increases dielectric loss and partial discharge quantity, bad mechanical property, therefore needs the fuse making to be set with insulating coating outward.
Summary of the invention
The invention provides a kind of bushing and processing technology thereof, when mainly solving rolled fuse filling epoxy resin or insulating oil in background technology, the capacitance electrode of its inside and insulating barrier can not melt very well forms an overall problem.
Technical solution of the present invention is as follows:
A kind of bushing, comprise the insulating barrier between conducting rod, capacitance electrode and capacitance electrode, its special character is: described capacitance electrode is one or more in conductive fabric, conductive mesh or conductive yam; Described conductive fabric, conductive mesh or conductive yam are nonwoven fabrics or fiber cloth immersion plating or metal brush-plating electric conducting material or non-metallic conducting material, or are made up of metal material silk, metallic material, or are mixed by metal material silk and plant fiber; Epoxy insulation material or insulating oil is soaked with in described capacitance electrode.
If desired, described gland pipe also can comprise insulating coating.
The water absorption rate of above-mentioned conductive fabric, conductive mesh or conductive yam is less than 0.1%; The thickness of described conductive fabric, conductive mesh or conductive yam is 0.01mm ~ 1mm; Described epoxy insulation material is that epoxy resin or epoxy resin add modified filler, described modified filler comprise in aluminium hydroxide, antimonous oxide, zinc oxide or white carbon one or more; The mass ratio of described epoxy resin and modified filler is 1: 0.02 ~ 1: 4.
The conductive metal material of above-mentioned immersion plating or brush plating comprises copper or tin, and described non-metallic conducting material comprises carbon black, and described metal material silk, metallic material comprise copper, tin, stainless steel or aluminium; Described plant fiber is cotton fiber or fibre and soya; Described conductive fabric, conductive mesh or conductive yam are through dewaxing, degreasing, preimpregnation or coated with coupling agent process.
The first processing technology of above-mentioned bushing, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] vacuum-latexed
2.1] fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] adopt pressure gelation process or hyperthermia drying technique to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature, forms bushing.
The second processing technology of above-mentioned bushing, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, form ground floor fuse;
2] vacuum-latexed
2.1] the ground floor fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] pressure gelation process or hyperthermia drying technique is adopted to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature;
3] alternately repeat step 1.2 to step 2.2, form second layer fuse successively ..., until form the bushing meeting electric pressure and require after outermost layer fuse curing molding.
The third processing technology of above-mentioned bushing, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] will roll on conducting rod after dipped to fiber cloth, silvalin or fleece epoxy insulation material;
1.3] by after direct or dipped for the capacitance electrode of conductive fabric, conductive mesh or conductive yam material epoxy insulation material, roll on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] solidify
Fuse after step 1 being processed is put into baking oven and is heating and curing, and forms the bushing meeting electric pressure and require.
4th kind of processing technology of above-mentioned bushing, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] dry, vacuum impregnating insulating oil
2.1] fuse after step 1 being processed carries out drying process;
2.2] after the fuse handled well being assemblied in insulating coating inside, carry out vacuum impregnating insulating oil, form the bushing meeting electric pressure and require.
The processing technology of above-mentioned bushing, also can comprise: to the sleeve pipe after curing molding, or directly assemble insulating coating, or directly make insulating coating, or first carries out refilling after machine adds profile joining insulating coating, or first carries out making insulating coating again after machine adds profile.
Above-mentioned epoxy insulation material is that epoxy resin or epoxy resin add modified filler, described modified filler comprise in aluminium hydroxide, antimonous oxide, zinc oxide or white carbon one or more; The mass ratio of described epoxy resin and modified filler is 1: 0.02 ~ 1: 4.
Above-mentioned pressure gelation process parameter request is as follows: a, vacuum degree are less than 500pa; B, mixing time are greater than 20min; Described fiber cloth, silvalin or fleece filament diameter are 0.05 ~ 2mm, and order number is 10 ~ 200 orders, and water absorption rate is less than 0.1%, through dewaxing, degreasing, preimpregnation or coated with coupling agent process before rolling use; The water absorption rate of described conductive fabric, conductive mesh or conductive yam is less than 0.1%, and thickness is 0.01mm ~ 1mm, through dewaxing, degreasing, preimpregnation or coated with coupling agent process before rolling use; Described conductive fabric, conductive mesh or conductive yam are nonwoven fabrics or fiber cloth immersion plating or metal brush-plating electric conducting material or non-metallic conducting material, or are made up of metal material silk, metallic material, or are mixed by metal material silk and plant fiber; The conductive metal material of described immersion plating or brush plating comprises copper or tin, and described non-metallic conducting material comprises carbon black, and described metal material silk, metallic material comprise copper, tin, stainless steel or aluminium; Described plant fiber is cotton fiber or fibre and soya; Described conducting rod surface sand-blasting or coated with coupling agent.
The invention has the advantages that:
1, bushing capacitance electrode is conductive fabric, conductive mesh or conductive yam, breach the defect that aluminum current foil matter exists completely, adopt conductive fabric, conductive mesh or conductive yam to be capacitance electrode, epoxy resin or insulating oil can run through this capacitance electrode smoothly, combine together with insulating barrier.In addition, adding of modified filler and coupling agent, also make the test data of the electric properties such as dielectric loss, partial discharge quantity and insulation, improve a lot than like product.The dielectric loss of its bushing is reduced to 3 ‰ by 5 ‰, and partial discharge quantity is by 10pC to drop to below 5pC, and insulation property improve more than 10%.
2, improve the mechanical performance of sleeve pipe, the bushing made by this technique, no longer assembles insulating coating, just can meet requirement of mechanical strength.
3, improve high and low temperature resistance, resistance to low temperature brings up to subzero 60 degree by original 40 degrees below zero, and resistance to elevated temperatures brings up to 90 degree by original 60 degree.
4, the qualification rate that bushing is produced brings up to more than 90% by 40%, and production cost reduces by more than 50%.
5, bushing of the present invention, can oil immersed type and dry type two kinds of structures.
Accompanying drawing explanation
Fig. 1 is the structural representation of bushing of the present invention;
Be labeled as in figure: 1-conducting rod; 2-insulating barrier; 3-capacitance electrode; 4-insulating coating.
Embodiment
See Fig. 1, bushing of the present invention, comprises the insulating barrier between conducting rod, capacitance electrode and capacitance electrode, and capacitance electrode is one or more in conductive fabric, conductive mesh or conductive yam.If desired, also can comprise and be arranged on outermost insulating coating.
Conductive fabric, conductive mesh or conductive yam are through dewaxing, degreasing, preimpregnation or coated with coupling agent process; Water absorption rate is less than 0.1%; Thickness is 0.01mm ~ 1mm; Material is nonwoven fabrics or other non-metallic conducting material such as conductive metal material or carbon black such as fiber cloth immersion plating or brush plating copper, tin, also can be made by metal material silk, metallic material or is mixed by metal material silk and plant fiber.Metal material silk, metallic material comprise copper, tin, stainless steel or aluminium etc.; Plant fiber is cotton fiber or fibre and soya etc.Epoxy insulation material or insulating oil is soaked with in insulating barrier and capacitance electrode.
The first embodiment of bushing processing technology of the present invention, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] vacuum-latexed
2.1] fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] adopt pressure gelation process to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature, form sleeve pipe.
Insulating coating can be assembled outside sleeve pipe after curing molding or directly make insulating coating.
The second embodiment of bushing processing technology of the present invention, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, form ground floor fuse;
2] vacuum-latexed
2.1] the ground floor fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] pressure gelation process is adopted to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature;
3] alternately repeat step 1.2 to step 2.2, form second layer fuse successively ..., until form the sleeve pipe meeting electric pressure and require after outermost layer fuse curing molding.
Insulating coating can be assembled outside sleeve pipe after curing molding or directly make insulating coating.
The third embodiment of bushing processing technology of the present invention, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] vacuum-latexed
2.1] fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] adopt pressure gelation process to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature, parallel operation forms sleeve pipe after adding profile.
Insulating coating can be assembled outside sleeve pipe after machine adds profile or directly make insulating coating.
4th kind of embodiment of bushing processing technology of the present invention, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] will roll on conducting rod after dipped to fiber cloth, silvalin or fleece epoxy insulation material;
1.3] by after direct or dipped for the capacitance electrode of conductive fabric, conductive mesh or conductive yam material epoxy insulation material, roll on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] solidify
Fuse after step 1 being processed is put into baking oven and is heating and curing;
3] sharp processing
Fuse step 2 be cured overall dimension as requested carries out machining, forms the bushing meeting electric pressure and require.
Insulating coating can be assembled outside sleeve pipe after machine adds profile or directly make insulating coating.
5th kind of embodiment of bushing processing technology of the present invention, comprises the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] dry, vacuum impregnating insulating oil
2.1] fuse after step 1 being processed carries out drying process;
2.2] after the fuse handled well being assemblied in insulating coating inside, carry out vacuum impregnating insulating oil, form the bushing meeting electric pressure and require.
In the embodiment of above five kinds of processing technologys, except particular/special requirement, be below General Requirement:
1, epoxy insulation material is ordinary epoxy resin or adds modified filler in the epoxy, modified filler comprise in aluminium hydroxide, antimonous oxide, zinc oxide or white carbon one or more; The mass ratio of epoxy resin and modified filler is 1: 0.02 ~ 1: 4.
2, pressure gelation process parameter request is as follows: a, vacuum degree are less than 500pa; B, mixing time are greater than 20min.
3, fiber cloth, silvalin or fleece are before rolling use, and through dewaxing, degreasing, preimpregnation or coated with coupling agent process, its water absorption rate is less than 0.1%, and filament diameter is 0.05 ~ 2mm, and order number is 10 ~ 200 orders.
4, conductive fabric, conductive mesh or conductive yam are through dewaxing, degreasing, preimpregnation or coated with coupling agent process; Water absorption rate is less than 0.1%; Thickness is 0.01mm ~ 1mm; Material is nonwoven fabrics or other non-metallic conducting material such as conductive metal material or carbon black such as fiber cloth immersion plating or brush plating copper, tin, also can be made by metal material silk, metallic material or is mixed by metal material silk and plant fiber.Metal material silk, metallic material comprise copper, tin, stainless steel or aluminium etc.; Plant fiber is cotton fiber or fibre and soya etc.
5, conducting rod surface sand-blasting or coated with coupling agent.
Table 1 is the test data of bushing of the present invention.
Table 1
Claims (11)
1. a bushing, comprises the insulating barrier between conducting rod, capacitance electrode and capacitance electrode, it is characterized in that: described capacitance electrode is one or more in conductive fabric, conductive mesh or conductive yam; Described conductive fabric, conductive mesh or conductive yam are nonwoven fabrics or fiber cloth immersion plating or metal brush-plating electric conducting material or non-metallic conducting material, or are made up of metal material silk, metallic material, or are mixed by metal material silk and plant fiber; Epoxy insulation material or insulating oil is soaked with in described capacitance electrode.
2. bushing according to claim 1, is characterized in that: also comprise insulating coating.
3. bushing according to claim 1 or 2, is characterized in that: the water absorption rate of described conductive fabric, conductive mesh or conductive yam is less than 0.1%; The thickness of described conductive fabric, conductive mesh or conductive yam is 0.01mm ~ 1mm; Described epoxy insulation material is that epoxy resin or epoxy resin add modified filler, described modified filler comprise in aluminium hydroxide, antimonous oxide, zinc oxide or white carbon one or more; The mass ratio of described epoxy resin and modified filler is 1: 0.02 ~ 1: 4.
4. bushing according to claim 3, it is characterized in that: the conductive metal material of described immersion plating or brush plating comprises copper or tin, and described non-metallic conducting material comprises carbon black, described metal material silk, metallic material comprise copper, tin, stainless steel or aluminium; Described plant fiber is cotton fiber or fibre and soya; Described conductive fabric, conductive mesh or conductive yam are through dewaxing, degreasing, preimpregnation or coated with coupling agent process.
5. the processing technology of bushing described in Claims 1-4, is characterized in that: comprise the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] vacuum-latexed
2.1] fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] adopt pressure gelation process or hyperthermia drying technique to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature, forms bushing.
6. the processing technology of bushing described in Claims 1-4, is characterized in that: comprise the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, form ground floor fuse;
2] vacuum-latexed
2.1] the ground floor fuse after step 1 being processed loads in totally enclosed mould and vacuumizes;
2.2] pressure gelation process or hyperthermia drying technique is adopted to inject mold curing shaping by epoxy insulation material, the demoulding after Temperature fall to room temperature;
3] alternately repeat step 1.2 to step 2.2, form second layer fuse successively ..., until form the bushing meeting electric pressure and require after outermost layer fuse curing molding.
7. the processing technology of bushing described in Claims 1-4, is characterized in that: comprise the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] will roll on conducting rod after dipped to fiber cloth, silvalin or fleece epoxy insulation material;
1.3] by after direct or dipped for the capacitance electrode of conductive fabric, conductive mesh or conductive yam material epoxy insulation material, roll on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] solidify
Fuse after step 1 being processed is put into baking oven and is heating and curing, and forms the bushing meeting electric pressure and require.
8. the processing technology of bushing described in Claims 1-4, is characterized in that: comprise the following steps:
1] fuse rolls
1.1] conducting rod is prepared;
1.2] insulating paper, crimped paper, fiber cloth, silvalin or fleece are rolled on conducting rod;
1.3] capacitance electrode of conductive fabric, conductive mesh or conductive yam material is rolled on the conducting rod after processing through step 1.2;
1.4] alternately repeat step 1.2 and step 1.3, until meet electric pressure requirement, form fuse;
2] dry, vacuum impregnating insulating oil
2.1] fuse after step 1 being processed carries out drying process;
2.2] after the fuse handled well being assemblied in insulating coating inside, carry out vacuum impregnating insulating oil, form the bushing meeting electric pressure and require.
9. the processing technology of bushing according to claim 5 or 6 or 7, it is characterized in that: also comprise the sleeve pipe after to curing molding, or directly assemble insulating coating, or directly make insulating coating, or first carry out refilling after machine adds profile joining insulating coating, or first carry out making insulating coating again after machine adds profile.
10. the processing technology of bushing according to claim 5 or 6 or 7, it is characterized in that: described epoxy insulation material is that epoxy resin or epoxy resin add modified filler, described modified filler comprise in aluminium hydroxide, antimonous oxide, zinc oxide or white carbon one or more; The mass ratio of described epoxy resin and modified filler is 1: 0.02 ~ 1: 4.
11. according to claim 5 or 6 or 7 or 8 processing technology of bushing, it is characterized in that:
Described pressure gelation process parameter request is as follows: a, vacuum degree are less than 500pa; B, mixing time are greater than 20min;
Described fiber cloth, silvalin or fleece filament diameter are 0.05 ~ 2mm, and order number is 10 ~ 200 orders, and water absorption rate is less than 0.1%, through dewaxing, degreasing, preimpregnation or coated with coupling agent process before rolling use;
The water absorption rate of described conductive fabric, conductive mesh or conductive yam is less than 0.1%, and thickness is 0.01mm ~ 1mm, through dewaxing, degreasing, preimpregnation or coated with coupling agent process before rolling use;
Described conductive fabric, conductive mesh or conductive yam are nonwoven fabrics or fiber cloth immersion plating or metal brush-plating electric conducting material or non-metallic conducting material, or are made up of metal material silk, metallic material, or are mixed by metal material silk and plant fiber; The conductive metal material of described immersion plating or brush plating comprises copper or tin, and described non-metallic conducting material comprises carbon black, and described metal material silk, metallic material comprise copper, tin, stainless steel or aluminium; Described plant fiber is cotton fiber or fibre and soya;
Described conducting rod surface sand-blasting or coated with coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964821.1A CN105355344A (en) | 2015-12-20 | 2015-12-20 | High-voltage bushing and processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510964821.1A CN105355344A (en) | 2015-12-20 | 2015-12-20 | High-voltage bushing and processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105355344A true CN105355344A (en) | 2016-02-24 |
Family
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| CN107871569A (en) * | 2017-11-15 | 2018-04-03 | 孟繁恒 | The method for coiling of dry-type capacitance type bushing core body |
| CN108133812A (en) * | 2017-12-18 | 2018-06-08 | 中国西电电气股份有限公司 | A kind of method for reducing high current Oil-impregnated Paper Condenser Bushing in History dielectric loss |
| CN108735560A (en) * | 2017-04-21 | 2018-11-02 | 浙江和泰电器有限公司 | Compound fuser casing and its processing method |
| CN109872848A (en) * | 2017-12-01 | 2019-06-11 | 江苏神马电力股份有限公司 | Composite insulator and manufacturing method thereof, composite bushing |
| US10937597B2 (en) | 2017-06-30 | 2021-03-02 | Abb Schweiz Ag | High voltage capacitive device |
| CN112927932A (en) * | 2021-01-22 | 2021-06-08 | 江苏思源赫兹互感器有限公司 | Novel dry RIP (RIP) sleeve core and winding process thereof |
| CN113125918A (en) * | 2021-04-14 | 2021-07-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Preparation method of sample wafer for testing insulation performance of capacitor core of epoxy glue impregnated paper sleeve |
| CN113948257A (en) * | 2021-09-13 | 2022-01-18 | 江苏金安电气有限公司 | A kind of porcelain structure glue-impregnated fiber capacitive bushing and using method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108735560A (en) * | 2017-04-21 | 2018-11-02 | 浙江和泰电器有限公司 | Compound fuser casing and its processing method |
| US10937597B2 (en) | 2017-06-30 | 2021-03-02 | Abb Schweiz Ag | High voltage capacitive device |
| CN107871569A (en) * | 2017-11-15 | 2018-04-03 | 孟繁恒 | The method for coiling of dry-type capacitance type bushing core body |
| CN109872848A (en) * | 2017-12-01 | 2019-06-11 | 江苏神马电力股份有限公司 | Composite insulator and manufacturing method thereof, composite bushing |
| CN109872848B (en) * | 2017-12-01 | 2024-12-13 | 江苏神马电力股份有限公司 | Composite insulator and manufacturing method thereof, composite bushing |
| CN108133812A (en) * | 2017-12-18 | 2018-06-08 | 中国西电电气股份有限公司 | A kind of method for reducing high current Oil-impregnated Paper Condenser Bushing in History dielectric loss |
| CN108133812B (en) * | 2017-12-18 | 2019-09-13 | 中国西电电气股份有限公司 | A method of reducing high current Oil-impregnated Paper Condenser Bushing in History dielectric loss |
| CN112927932A (en) * | 2021-01-22 | 2021-06-08 | 江苏思源赫兹互感器有限公司 | Novel dry RIP (RIP) sleeve core and winding process thereof |
| CN112927932B (en) * | 2021-01-22 | 2022-05-31 | 江苏思源赫兹互感器有限公司 | Novel dry RIP (RIP) sleeve core and winding process thereof |
| CN113125918A (en) * | 2021-04-14 | 2021-07-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Preparation method of sample wafer for testing insulation performance of capacitor core of epoxy glue impregnated paper sleeve |
| CN113125918B (en) * | 2021-04-14 | 2022-05-17 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Preparation method of samples for insulation performance test of epoxy adhesive-impregnated paper bushing capacitor core |
| CN113948257A (en) * | 2021-09-13 | 2022-01-18 | 江苏金安电气有限公司 | A kind of porcelain structure glue-impregnated fiber capacitive bushing and using method thereof |
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