CN205319004U - Vacuum rubber soaks fibre explosion -proof type oil paper capacitance graded bushing - Google Patents
Vacuum rubber soaks fibre explosion -proof type oil paper capacitance graded bushing Download PDFInfo
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- CN205319004U CN205319004U CN201521103693.3U CN201521103693U CN205319004U CN 205319004 U CN205319004 U CN 205319004U CN 201521103693 U CN201521103693 U CN 201521103693U CN 205319004 U CN205319004 U CN 205319004U
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Abstract
The utility model discloses a vacuum rubber soaks fibre explosion -proof type oil paper capacitance graded bushing, including voltage -sharing ball, electric capacity core, full skirt, flange, conservator, wiring board, the electric capacity core be cylindrical, the inside central conductor leader that is equipped with of electric capacity core, and the package is around insulating layer and aluminium foil in turn in the central conductor leader outside, and the electric capacity core outside is equipped with insulating layer, insulating layer down, and upward the insulating layer passes through epoxy connection full skirt, the flange sets up at electric capacity core middle part, and the flange side is equipped with the relief plug, and the conservator setting is in the full skirt top, and the wiring board setting sets up in electric capacity core the latter half at conservator top, voltage -sharing ball, the utility model discloses through the science preparation, electric capacity core insulating properties is high, the insulating layer has replaced original breakable insulator, has good antidetonation and explosion -proof function, and the sleeve pipe adopts full seal structure, and it is inside to fill transformer oil, prevents insulation ageing, has light in weight, easy transportation and installation, and mechanical strength is high, is difficult to brokenly, and surperficial hydrophobicity, resistant pollution flashover can the reinforces, long service life's advantage.
Description
Technical field
The invention belongs to technical field of electric equipment, be specifically related to vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History.
Background technology
Fast development along with China's economy, the scale of electrical network constantly expands, the uncertain factor and the potential risk that affect safe operation of power system increase therewith, thus user is more and more higher to security reliability and the prescription of supply of electric power, bushing is mainly used in high-voltage electrical equipment and connects and draw link, and restrict equipment reliability of operation, existing domestic bushing, antidetonation poor in anti-explosion property, if can not find in time inside pipe casing defect or safeguard improper, insulation damages even breakdown and explosion accident very easily occurs, and service life is not long, changes maintenance period short.
Summary of the invention
For solving the problems referred to above, the invention discloses vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, lightweight, easily transport and installation, mechanical strength is high, it is not easy to broken, and manufacturing process is simple, has surface hydrophobicity, resistance to pollution flashover ability is strong, few maintenance, has good antidetonation and explosion prevention function.
For reaching above-mentioned purpose, technical scheme is as follows:
Vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, it is characterized in that: include voltage equalizing ball, capacitor core, full skirt, flange, conservator, patch panel, described capacitor core is cylindrical, central conductor leader it is provided with inside capacitor core, outside described central conductor leader, alternating packets is around insulating barrier and aluminum paper tinsel, insulating barrier it is provided with outside capacitor core, lower insulating barrier, described upper insulating barrier connects full skirt by epoxy resin, described flange is arranged in the middle part of capacitor core, flange side is provided with air relief cock, described conservator is arranged on above full skirt, conservator is provided with fuel feed hole, described patch panel is arranged on above conservator, described voltage equalizing ball is arranged on capacitor core the latter half.
As a modification of the present invention, described conservator is provided with oil level indicating gage.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, comprises the following steps:
(1) capacitor core rolls;
(2) capacitor core vacuum drying;
(3) upper insulating barrier, lower insulating barrier, full skirt make;
(4) sleeve pipe general assembly;
(5) bobbin seal test;
(6) vacuum oil immersion;
(7) sleeve pipe is tested.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, it is become series capacitor with central conductor leader for concentric cylindrical with aluminium foil by cable paper that capacitor core described in step (1) rolls, cable thickness of paper is 0.08-0.15mm paper tape, 2-10 layer is rolled according to the mode of circulation 50% crimping, after one layer of resin of brush is then covered by last layer 0.1-0.15mm aluminium foil circulation overlap joint, alternately and repeatedly operation has been until the design size rolling regulation and has rolled.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, capacitor core vacuum drying described in step (2) is to be put into capacitor core to be dried in the container of a vacuum-pumping, first to this container vacuum-pumping, vacuum is between 0-40Pa, product is made to be in certain vacuum state, then by heating temperatures in the container of vacuum to 90-100 DEG C, it is incubated 1-3h.
Described capacitor core vacuum drying refers to the moisture got rid of in capacitor core, improve the electric property of product, owing to capacitor core is in negative pressure in container, so being discharged by air in the hole of pressure entrance capacitor core, and the environment damp eliminating efficiency being in high temperature is greatly improved.
Capacitor core inner drying degree reference value is in Table 1:
The sorption data of table 1 wood pulp
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, upper insulating barrier described in step (3), lower insulating barrier make, glass fibre direct impregnation resin is carried out bidirectional crossed winding, until being wound into the size of regulation, glass fibre intersecting angle is 90 °, put into 120-140 DEG C of baking oven after completing to carry out solidification and form, have steel to touch tool in fiberglass insulation and carry out the demoulding, form the sheath with certain wall thickness; Full skirt is through the high temperature vulcanized machine sulfidization molding of silicone rubber, curing temperature 110-130 DEG C, cure time 30-40min.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, sleeve pipe general assembly described in step (4), first vertically being fixed by capacitor core, lower end set loads insulating barrier, mounting flange, insulating barrier loaded onto by upper end set, flange and upper and lower insulation interlayer are sealed by seal washer, and bolt is fixed, capacitor core voltage equalizing ball mounted below, conservator, oil level indicating gage, patch panel are installed in upper insulating barrier upper end, apply 0.5-0.8 ton pressure clamping screw and are fixed.
During work, the effect of conservator is to be exactly tubular fuel reserve tank above transformator, transformator increases due to load, oil temperature raises, in fuel tank, oil expands, and at this moment too much oil will flow into conservator, when temperature reduces, oil in conservator can flow into fuel tank again, playing the effect automatically adjusting pasta, conservator is divided into corrugated, capsule-type, three kinds of forms of diaphragm type, has ripple expansion, capsule-type two kinds.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, bobbin seal test described in step (5) is to applying 0.2-0.3Mpa nitrogen pressure in test product, and maintaining 1-1.5h, each sealing surface of test product, without any leakage phenomenon, is this experiment and passes through.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, vacuum oil immersion described in step (6) refers to that the product after by step (5) is put in vacuum-pumping container, first to this container vacuum-pumping, vacuum is at 1333-3999.6Pa(10-30mmHg) between, make product be in certain vacuum state, then the oil of 40-80 DEG C is injected capacitor core.
Owing to product is in negative pressure, so the 10GBX transformer oil of the high-quality through special handling injected can enter with very big pressure in the hole of capacitor core, vacuum oil immersion is conducive to all of interconnected pore of oil saturated, and immersion oil speed improves 50%.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, sleeve pipe is tested described in step (7), assay is as follows:
Table 2: sleeve pipe oiliness can recommend reference value
Table 3: sleeve pipe oiliness can actual control table
From table 2 and table 3 it can be seen that the breakdown voltage of oil of described sleeve pipe, high-temperature medium, water content and solution gas body burden Properties Control value are all lower than standard recommendation reference value, also just describe sleeve pipe oil Properties Control when dispatching from the factory stricter than standard-required.
Performance test: test method and capital equipment require:
1, instrument is used: 2500v insulation measurement instrument
2, measurement requirement: the exhausted resistance of major insulation; The exhausted resistance that condenser bushing end is flat
Atmospheric condition:
Temperature: 26 DEG C
Relative humidity: 65%
One, product nominal parameter
| System nominal voltage kV(virtual value) | Nominal voltage of a system kV(virtual value) | Product rated current A |
| 126 | 110 | 1250 |
Two, insulation resistance test
Three, insulation resistance test
| Once M Ω over the ground | Measurement terminal tap M Ω over the ground |
| +∞ | >1000 |
Four, dielectric dissipation factor test, capacitance test:
| Apply voltage kV | Dielectric loss tan δ % | Capacitance pF |
| 10 | 0.330 | 542 |
| 77 | 0.330 | 542 |
| 126 | 0.330 | 542 |
Five, partial discharge quantity test
| Apply voltage Test voltage kV | Partial discharge quantity Partial discharge pC |
| 77 | 4 |
| 126 | 9 |
Six, leakage test: 0.2MPa/15min air seal is tested, and passes through.
The invention has the beneficial effects as follows:
Vacuum glue of the present invention leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, capacitor core is the concentric cylindrical series capacitor wound on conducting rod by insulating paper foil electrode, in order to uniform electric field, through vacuum drying, immersion oil becomes, after processing, the paper oil insulation body that electric property is high, and insulating properties are high; Insulating barrier adopts that glass fiber impregnated resin is bidirectional crossed is entwined, instead of originally frangible insulator, there is good antidetonation and explosion prevention function, insulating barrier is as external insulation simultaneously, capacitor core can be protected, the spacer flanger of sleeve pipe is provided with air relief cock, the gas of release power transformer enclosure residual; Sleeve pipe adopts all-sealed structure, is filled with the 10GBX transformer oil of high-quality through special handling inside it, the capacitor core of sleeve pipe completely not with atmosphere, the nuisance in the irradiation of sunlight and air can be avoided to immerse inside pipe casing, and make insulation ag(e)ing, and all connector weatherproofs, have lightweight, easily transport and installation, mechanical strength is high, it is not easy to broken, manufacturing process is simple, surface hydrophobicity, resistance to pollution flashover ability is strong, the advantage of long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is capacitor core schematic diagram of the present invention.
Reference numerals list:
1, voltage equalizing ball, 2, capacitor core, 3, full skirt, 4, flange, 5, conservator, 6, patch panel, 7, central conductor leader, 8, insulating barrier, 9, aluminium foil, 10, upper insulating barrier, 11, lower insulating barrier, 12, epoxy resin, 13, air relief cock, 14, fuel feed hole, 15, oil level indicating gage.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is merely to illustrate the present invention rather than restriction the scope of the present invention.It should be noted that, the word "front", "rear" of use is described below, direction that "left", "right", "up" and "down" refer in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
As shown in the figure, vacuum glue of the present invention leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, including voltage equalizing ball 1, capacitor core 2, full skirt 3, flange 4, conservator 5, patch panel 6, described capacitor core 1 is cylindrical, capacitor core 1 is internal is provided with central conductor leader, outside central conductor leader 7 described in 7, alternating packets is around insulating barrier 8 and aluminium foil 9, insulating barrier 10 it is provided with outside capacitor core 2, lower insulating barrier 11, described upper insulating barrier 10 connects full skirt 3 by epoxy resin 12, described flange is arranged in the middle part of capacitor core 2, flange side is provided with air relief cock 13, described conservator 5 is arranged on above full skirt 3, conservator 5 is provided with fuel feed hole 14, described patch panel 6 is arranged on above conservator 5, described voltage equalizing ball 1 is arranged on capacitor core 2 the latter half, described conservator is provided with oil level indicating gage 15.
The preparation method of described vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, comprises the following steps:
(1) capacitor core rolls: become series capacitor with central conductor leader for concentric cylindrical with aluminium foil by cable paper, cable thickness of paper is 0.12mm paper tape, 6 layers are rolled according to the mode of circulation 50% crimping, after one layer of resin of brush is then covered by last layer 0.1mm aluminium foil circulation overlap joint, alternately and repeatedly operation has been until the design size rolling regulation and has rolled;
(2) capacitor core vacuum drying: capacitor core 2 is put in the container of vacuum-pumping, first to this container vacuum-pumping, vacuum, at 20Pa, makes product be in vacuum state, then by heating temperatures in the container of vacuum to 95 DEG C, is incubated 2h;
(3) upper insulating barrier 10, lower insulating barrier 11 make: glass fibre direct impregnation resin is carried out bidirectional crossed winding, until being wound into the size of regulation, glass fibre intersecting angle is 90 °, put into 130 DEG C of baking ovens after completing to carry out solidification and form, there is steel to touch tool in fiberglass insulation and carry out the demoulding, form the sheath with certain wall thickness; Full skirt 3 is through the high temperature vulcanized machine sulfidization molding of silicone rubber, curing temperature 125 DEG C, cure time 38min;
(4) sleeve pipe general assembly; First capacitor core is vertically fixed, lower end set loads insulating barrier, mounting flange 4, insulating barrier loaded onto by upper end set, flange and upper and lower insulation interlayer are sealed by seal washer, and bolt is fixed, capacitor core voltage equalizing ball 1 mounted below, conservator 5, oil level indicating gage 15, patch panel 6 are installed in upper insulating barrier upper end, apply 0.6 ton of pressure clamping screw and are fixed;
(5) bobbin seal test: to applying 0.3Mpa nitrogen pressure in test product, maintain 1.5h;
(6) vacuum oil immersion: product is put in vacuum-pumping container, first to this container vacuum-pumping, vacuum, at 2450Pa, makes product be in certain vacuum state, then the oil of 65 DEG C is injected capacitor core;
(7) sleeve pipe is tested.
Vacuum glue of the present invention leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, prepares through science, and capacitor core insulating properties are high; Insulating barrier instead of originally frangible insulator, there is good antidetonation and explosion prevention function, sleeve pipe adopts all-sealed structure, transformer oil is filled inside it, the capacitor core of sleeve pipe completely not with atmosphere, the nuisance in the irradiation of sunlight and air can be avoided to immerse inside pipe casing, and make insulation ag(e)ing, and all connector weatherproofs, have lightweight, easily transport and installation, mechanical strength is high, it is not easy to broken, manufacturing process is simple, surface hydrophobicity, resistance to pollution flashover ability is strong, the advantage of long service life.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.
Claims (2)
1. vacuum glue leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, it is characterized in that: include voltage equalizing ball, capacitor core, full skirt, flange, conservator, patch panel, described capacitor core is cylindrical, central conductor leader it is provided with inside capacitor core, outside described central conductor leader, alternating packets is around insulating barrier and aluminum paper tinsel, insulating barrier it is provided with outside capacitor core, lower insulating barrier, described upper insulating barrier connects full skirt by epoxy resin, described flange is arranged in the middle part of capacitor core, flange side is provided with air relief cock, described conservator is arranged on above full skirt, conservator is provided with fuel feed hole, described patch panel is arranged on above conservator, described voltage equalizing ball is arranged on capacitor core the latter half.
2. vacuum glue according to claim 1 leaching fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History, it is characterised in that: described conservator is provided with oil level indicating gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103693.3U CN205319004U (en) | 2015-12-28 | 2015-12-28 | Vacuum rubber soaks fibre explosion -proof type oil paper capacitance graded bushing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521103693.3U CN205319004U (en) | 2015-12-28 | 2015-12-28 | Vacuum rubber soaks fibre explosion -proof type oil paper capacitance graded bushing |
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|---|---|
| CN205319004U true CN205319004U (en) | 2016-06-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469957A (en) * | 2015-12-28 | 2016-04-06 | 南京电气高压套管有限公司 | Vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing |
| CN106093725A (en) * | 2016-06-23 | 2016-11-09 | 中国电力科学研究院 | Bushing electric capacity core body insulation performance testing device |
| CN111161946A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Anti-seismic transformer bushing with oil pressure compensation and monitoring and protecting method |
| CN114334310A (en) * | 2021-12-30 | 2022-04-12 | 江苏昆泰科技有限公司 | Casing and method for manufacturing the same |
-
2015
- 2015-12-28 CN CN201521103693.3U patent/CN205319004U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469957A (en) * | 2015-12-28 | 2016-04-06 | 南京电气高压套管有限公司 | Vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing |
| CN105469957B (en) * | 2015-12-28 | 2018-04-24 | 南京电气高压套管有限公司 | Vacuum glue soaks fiber explosion-proof type Oil-impregnated Paper Condenser Bushing in History |
| CN106093725A (en) * | 2016-06-23 | 2016-11-09 | 中国电力科学研究院 | Bushing electric capacity core body insulation performance testing device |
| CN111161946A (en) * | 2020-01-03 | 2020-05-15 | 云南电网有限责任公司电力科学研究院 | Anti-seismic transformer bushing with oil pressure compensation and monitoring and protecting method |
| CN111161946B (en) * | 2020-01-03 | 2023-10-27 | 云南电网有限责任公司电力科学研究院 | Shock-resistant transformer bushing with oil pressure compensation and monitoring and protecting method |
| CN114334310A (en) * | 2021-12-30 | 2022-04-12 | 江苏昆泰科技有限公司 | Casing and method for manufacturing the same |
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