CN104934220A - Breaker capacitor - Google Patents
Breaker capacitor Download PDFInfo
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- CN104934220A CN104934220A CN201510361381.0A CN201510361381A CN104934220A CN 104934220 A CN104934220 A CN 104934220A CN 201510361381 A CN201510361381 A CN 201510361381A CN 104934220 A CN104934220 A CN 104934220A
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- breaker capacitor
- valve
- circuit
- breaker
- end cover
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Abstract
The invention relates to a breaker capacitor which comprises a porcelain sleeve, wherein an upper end cover and a lower end cover are respectively and fixedly connected at the two ends of the porcelain sleeve, and a breaker capacitor body and two expanders are arranged in the porcelain sleeve. In the invention, a technology of direct lapping of aluminum foils is adopted among elements of the breaker capacitor body, the breaker capacitor is simple and reliable in structure and is convenient to maintain without welding spots and welding, working efficiency is improved, production cost is reduced, the loss of the breaker capacitor per se is effectively reduced, the rise rate of recovering power grid voltage is ensured to be reduced, and a voltage equalization effect is achieved; and moreover, inflatable expanders are adopted above the breaker capacitor body, a micro-positive pressure state in the breaker capacitor can be kept at a low-temperature environment, oil leakage at the low-temperature environment is effectively reduced, partial discharge is ensured to be smaller than 5PC, all performance indexes of the capacitor are stabilized, the quality of the breaker capacitor is guaranteed, and the breaker capacitor can safely and stably run in the power grid for a long time.
Description
Technical field
The present invention relates to a kind of fixed capacitor, especially relate to a kind of circuit-breaker capacitor.
Background technology
Along with expanding economy, the electricity capacity of electrical network day by day increases, and during primary cut-out separating brake, the fluctuation of voltage becomes large, very not steady.Circuit-breaker capacitor is mainly used to improve voltage's distribiuting, reduces recovery voltage climbing, the effect of equal piezoelectricity pressure, and therefore this loss objective for circuit-breaker capacitor requires just more and more higher.Adopt rosin solder technology between every piece element in the device body of existing circuit-breaker capacitor, have solder joint, solder side has the welding things such as rosin, and rosin can incorporate along with the time in impregnating agent, and dielectric loss is exceeded standard.Along with device frequent loss in actual moving process of some soldered elements exceeds standard, make line voltage unstable, and the effect of equal piezoelectricity pressure cannot be played, thus directly affect the normal electricity consumption of electricity consumption user.In addition, adopt expander as the device changing internal negative pressure in the high voltage porcelain bushing of circuit-breaker capacitor, its basic structure is the welding cappings of bellows two ends, becomes all-sealed expander, but the negative pressure produced when its inside is supplied to oil cooling contracting without any pressure.All-sealed expander in actual motion, because circuit-breaker capacitor requires that internal pressure ensures at slight positive pressure state, when the ambient temperature of actual motion is spent at subzero 20-30, circuit-breaker capacitor interior oil shrinkage, thus make inner to produce negative pressure.The internal pressure of all-sealed expander itself is not enough, thus the negative pressure that cannot compensate after oil cooling contracting, like this, product just there will be oil seepage phenomena, partial discharge becomes large, and all other performances are also unstable simultaneously, thus directly affect the quality of product, product cannot be worked safely and steadly, thus directly affects the safety of electric power system and normal use.
Summary of the invention
The applicant, for above-mentioned problem, is studied improvement, provides a kind of circuit-breaker capacitor, structure is simple, effectively reduces the loss of circuit-breaker capacitor itself, reduces production cost, increase work efficiency, ensure to reduce the climbing recovering line voltage, play the effect of equal piezoelectricity pressure; Further, compensate circuit-breaker capacitor internal negative pressure, keep inner slight positive pressure state, effectively reduce the leakage of oil situation of circuit-breaker capacitor, reduce partial discharge, stablize the properties of circuit-breaker capacitor, ensure the quality of circuit-breaker capacitor; Make circuit-breaker capacitor for a long time in electrical network safety, run stably, guarantee the normal electricity consumption of user.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of circuit-breaker capacitor, comprise porcelain bushing, upper end cover and bottom end cover are fixedly connected on the upper of described porcelain bushing respectively, lower two ends, the central authorities of described upper end cover are provided with oil sealing screw, circuit-breaker capacitor device body and two expanders are arranged in described porcelain bushing, two expanders are separately positioned on the two ends of described circuit-breaker capacitor device body, described expander is type inflatable expander, described type inflatable expander comprises the body be made up of bellows, two cappings are sealedly connected on described body two ends respectively, the described capping of one end is provided with valve stud, described valve stud is provided with valve, described valve is communicated with the inner chamber of described body by the through hole in described capping, valve inside is arranged in the valve on described valve stud, the outer wall of described valve is provided with external screw thread, the valve of described valve stud is threaded described upper end cover, described circuit-breaker capacitor device body comprises and is stacked with by some lamellas the element group that the element that connects forms, the two ends of described element group are provided with liner, described liner is wound with at least two-layer aluminium foil, the liner that two pieces of foursquare pressing plates are pressed on described element group two ends makes to compress between the element of described element group and liner, four block filling plates are separately positioned on the surrounding of described pressing plate, and the two ends of described infill panel are fixedly connected with the side of described square pressing plate, and the cross section of described infill panel is arc-shaped, and the device body contour that four pieces of described infill panels are formed after installing is cylindrical.
Valve and the described oil sealing screw thread of described valve stud are connected in the same screwed hole of described upper end cover.
Two described cappings are welded on described body two ends.
The outer coaxial sleeve of described expander is equipped with support cylinder.
Described liner is wound with three layers of aluminium foil.
Technique effect of the present invention is:
A kind of circuit-breaker capacitor disclosed by the invention, the technology adopting aluminium foil directly to overlap between the element of circuit-breaker capacitor device body, simple and reliable for structure, easy to maintenance, no-welding-spot and welding, increase work efficiency, save welding material, cost of labor and the electricity charge, reduce production cost; The loss of effective reduction circuit-breaker capacitor itself, ensures to reduce the climbing recovering line voltage, plays the effect of equal piezoelectricity pressure; In addition, an expander in circuit-breaker capacitor adopts type inflatable expander, the slight positive pressure state of circuit-breaker capacitor inside can be kept at low ambient temperatures, effective minimizing circuit-breaker capacitor leakage of oil situation at low ambient temperatures, ensure that partial discharge is less than 5PC, the property indices of stabilising condenser; Ensure the quality of circuit-breaker capacitor, make circuit-breaker capacitor for a long time in electrical network safety, run stably, guarantee the normal electricity consumption of user.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of circuit-breaker capacitor device body.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the overlap joint enlarged drawing of element.
Fig. 5 is the structural representation of expander.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the present invention includes porcelain bushing 3, upper end cover 6 and bottom end cover 4 are fixedly connected on the upper/lower terminal of porcelain bushing 3 respectively by screw, upper end cover 6 and be respectively equipped with sealing ring 7 between bottom end cover 4 and porcelain bushing 3, make the bore seal of porcelain bushing 3, the central authorities of upper end cover 6 are provided with oil sealing screw 5, and the outside of oil sealing screw 5 is provided with sealing ring 9.Circuit-breaker capacitor device body 2 and two expanders 1 are arranged in porcelain bushing 3, and two expanders 1 are separately positioned on the two ends of circuit-breaker capacitor device body 2, and the outer coaxial sleeve respectively of expander 1 is equipped with support cylinder 8.As shown in Fig. 1 ~ 4, circuit-breaker capacitor device body 2 comprises element group 203, element group 203 is stacked with by some lamellas that the element 208 that connects forms, the two ends of element group 203 are provided with liner 201, liner 201 is wound around the aluminium foil that haves three layers, the liner 201 that two pieces of foursquare pressing plates 202 are pressed on element group 203 two ends makes to compress between the element 208 of element group 203 and liner 201, pressing plate 202 is made up of aluminium sheet, four block filling plates 205 are separately positioned on the surrounding of pressing plate 202, the cross section of infill panel 205 is arc-shaped, two ends are provided with screw counter bore, the two ends of infill panel 205 are fixedly connected on the side of square pressing plate 202 by screw 204, the device body contour that four block filling plates 205 install rear formation is cylindrical, infill panel 205 adopts polypropylene material, disposable tool injection mo(u)lding, do not absorb impregnating agent, do not react with impregnating agent, the heat expansion pressure of impregnating agent can be reduced in using, save impregnating agent.Circuit-breaker capacitor device body 2 is when assembling, the two ends screw 204 of 3 block filling plates 205 is tightened in respectively on the corresponding side of three of pressing plate 202, form the container that has a lateral opening, this lateral opening is used for putting into element group 203; Element group 203 is loaded in groove that three infill panels 205 form, every piece element 208 in element group 203, as shown in the element overlap joint enlarged drawing of Fig. 4, directly overlap by the material of aluminum foil gapless of element itself, then liner 201 is wound around the two ends being placed on the element group 203 of compression after 3 layers of aluminium foil, just in time the another side of liner 201 and pressing plate 202 contact; Finally tighten last block filling plate 205, complete the assembling of circuit-breaker capacitor device body.Whole assembling process is without the need to welding, and also no-welding-spot, increases work efficiency, and saves welding material, cost of labor and the electricity charge, reduces production cost.In the present embodiment, aluminium foil overlapping technology is directly used between every piece element 208, without any solder joint, welding thing, device body entirety superposes mutually for every piece element, and two ends pressing plate 202 and aluminium foil directly compress, add compression coefficient, guarantee that the Contact of each element is good.
In the present embodiment, expander 1 above circuit-breaker capacitor device body 2 is type inflatable expander, as Fig. 1, shown in 5, type inflatable expander comprises body 102, body 102 is made up of bellows, 2 capping 101 difference seal weldings are at the two ends of body 102, a seal chamber is formed by body 102 and 2 cappings 101, a capping 101 wherein offers a through hole and is welded with valve stud 103, valve stud 103 is provided with valve 105, valve 105 is communicated with the inner chamber of body by the through hole in capping 101, tighten in the valve that valve inside 104 is arranged on valve stud 103, thus by the valve inside 104 on valve stud 103, can to injecting gas in seal chamber.The outer wall of valve 105 is provided with external screw thread, can conveniently be threaded with the upper end cover 6 of circuit-breaker capacitor, in the present embodiment, valve 105 and the oil sealing screw 5 of valve stud 103 are threaded in the same screwed hole of upper end cover 6, the valve 105 of valve stud 103 is positioned at the below of oil sealing screw 5, conveniently can open oil sealing screw 5 at the scene of facility, inflate in type inflatable expander.
As shown in Figure 1, when type inflatable expander is arranged in circuit-breaker capacitor, type inflatable expander is contained in the below of the upper end cover 6 of circuit-breaker capacitor, the valve 105 of the valve stud 103 of type inflatable expander is screwed in upper end cover 6, valve 105 is positioned at the below of oil sealing screw 5, install when circuit-breaker capacitor entirety and after vacuum impregnation, just directly to valve gas injection, its internal pressure can be increased.Such circuit-breaker capacitor just can keep the state of inner pressure-fired when temperature is low.Owing to adopting type inflatable expander, can environmentally situation inflate the expander in circuit-breaker capacitor, increase expander internal pressure, make it under corresponding environment, can normally reduce circuit-breaker capacitor internal negative pressure, make circuit-breaker capacitor keep slight positive pressure state, guarantee the stable of product properties, partial discharge ensures be less than 5PC.
Claims (5)
1. a circuit-breaker capacitor, it is characterized in that: comprise porcelain bushing, upper end cover and bottom end cover are fixedly connected on the upper of described porcelain bushing respectively, lower two ends, the central authorities of described upper end cover are provided with oil sealing screw, circuit-breaker capacitor device body and two expanders are arranged in described porcelain bushing, two expanders are separately positioned on the two ends of described circuit-breaker capacitor device body, described expander is type inflatable expander, described type inflatable expander comprises the body be made up of bellows, two cappings are sealedly connected on described body two ends respectively, the described capping of one end is provided with valve stud, described valve stud is provided with valve, described valve is communicated with the inner chamber of described body by the through hole in described capping, valve inside is arranged in the valve on described valve stud, the outer wall of described valve is provided with external screw thread, the valve of described valve stud is threaded described upper end cover, described circuit-breaker capacitor device body comprises and is stacked with by some lamellas the element group that the element that connects forms, the two ends of described element group are provided with liner, described liner is wound with at least two-layer aluminium foil, the liner that two pieces of foursquare pressing plates are pressed on described element group two ends makes to compress between the element of described element group and liner, four block filling plates are separately positioned on the surrounding of described pressing plate, and the two ends of described infill panel are fixedly connected with the side of described square pressing plate, and the cross section of described infill panel is arc-shaped, and the device body contour that four pieces of described infill panels are formed after installing is cylindrical.
2. according to circuit-breaker capacitor according to claim 1, it is characterized in that: the valve of described valve stud and described oil
Envelope screw thread is connected in the same screwed hole of described upper end cover.
3. according to circuit-breaker capacitor according to claim 1, it is characterized in that: two described cappings are welded on described body
Two ends.
4. according to circuit-breaker capacitor according to claim 1, it is characterized in that: the outer coaxial sleeve of described expander is equipped with support cylinder.
5. according to circuit-breaker capacitor according to claim 1, it is characterized in that: described liner is wound with three layers of aluminium foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361381.0A CN104934220A (en) | 2015-06-28 | 2015-06-28 | Breaker capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510361381.0A CN104934220A (en) | 2015-06-28 | 2015-06-28 | Breaker capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104934220A true CN104934220A (en) | 2015-09-23 |
Family
ID=54121345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510361381.0A Pending CN104934220A (en) | 2015-06-28 | 2015-06-28 | Breaker capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104934220A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788858A (en) * | 2016-04-19 | 2016-07-20 | 无锡市联达电器有限公司 | GIS voltage sharing capacitor |
| CN109616337A (en) * | 2018-12-14 | 2019-04-12 | 西安西电电力电容器有限责任公司 | Capacitive means and its manufacturing process and capacitance type potential transformer |
| CN116316169A (en) * | 2023-05-18 | 2023-06-23 | 四川省青珑电气设备有限公司 | Low-voltage reactive power compensation device |
-
2015
- 2015-06-28 CN CN201510361381.0A patent/CN104934220A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788858A (en) * | 2016-04-19 | 2016-07-20 | 无锡市联达电器有限公司 | GIS voltage sharing capacitor |
| CN105788858B (en) * | 2016-04-19 | 2018-06-12 | 无锡市联达电器有限公司 | GIS equalizing capacitors |
| CN109616337A (en) * | 2018-12-14 | 2019-04-12 | 西安西电电力电容器有限责任公司 | Capacitive means and its manufacturing process and capacitance type potential transformer |
| CN116316169A (en) * | 2023-05-18 | 2023-06-23 | 四川省青珑电气设备有限公司 | Low-voltage reactive power compensation device |
| CN116316169B (en) * | 2023-05-18 | 2023-07-25 | 四川省青珑电气设备有限公司 | Low-voltage reactive power compensation device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |