CN203931812U - Circuit-breaker capacitor - Google Patents
Circuit-breaker capacitor Download PDFInfo
- Publication number
- CN203931812U CN203931812U CN201420395336.8U CN201420395336U CN203931812U CN 203931812 U CN203931812 U CN 203931812U CN 201420395336 U CN201420395336 U CN 201420395336U CN 203931812 U CN203931812 U CN 203931812U
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- Prior art keywords
- circuit
- breaker capacitor
- valve
- breaker
- end cover
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of circuit-breaker capacitor, comprises porcelain bushing, and upper end cover and bottom end cover are fixedly connected on respectively porcelain bushing two ends, and circuit-breaker capacitor device body and two expanders are arranged in porcelain bushing.Between the element of the circuit-breaker capacitor device body that the utility model adopts, adopt the directly technology of overlap joint of aluminium foil, simple and reliable for structure, easy to maintenance, no-welding-spot and welding, increase work efficiency, and reduces production costs; Effectively reduce the loss of circuit-breaker capacitor itself, guarantee to reduce the climbing that recovers line voltage, play the effect that equal piezoelectricity is pressed; In addition, circuit-breaker capacitor device just adopts type inflatable expander with it, can keep the slight positive pressure state of circuit-breaker capacitor inside under low temperature environment, effectively reduces the leakage of oil situation under low temperature environment, guarantee that partial discharge is less than 5PC, the property indices of stabilising condenser; Guarantee the quality of circuit-breaker capacitor, make circuit-breaker capacitor safety, operation stably in electrical network for a long time.
Description
Technical field
The utility model relates to a kind of fixed capacitor, especially relates 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, it is large, very not steady that the fluctuation of voltage becomes.Circuit-breaker capacitor is mainly used to improve voltage and distributes, and reduces recovery voltage climbing, the effect that all piezoelectricity is pressed, so this loss objective for circuit-breaker capacitor requires just more and more higher.In the device body of existing circuit-breaker capacitor, between every piece element, adopt rosin solder technology, have solder joint, on solder side, have 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 the device of some soldered elements in actual moving process often loss exceed standard, make line voltage unstable, and cannot play the effect that equal piezoelectricity is pressed, thereby directly affect electricity consumption user's normal electricity consumption.In addition, in the high voltage porcelain bushing of circuit-breaker capacitor, adopt expander as the device that changes internal negative pressure, its basic structure is bellows two ends welding cappings, becomes all-sealed expander, but the negative pressure of its inside generation while offering oil cooling contracting without any pressure.All-sealed expander, in actual motion, guarantees at slight positive pressure state because circuit-breaker capacitor requires internal pressure, when the ambient temperature of actual motion is when subzero 20-30 spends, and the shrinkage of circuit-breaker capacitor interior oil, thus make the inner negative pressure that produces.The internal pressure of all-sealed expander itself is not enough, thereby cannot compensate the negative pressure after oil cooling contracting, like this, product just there will be oil seepage phenomena, it is large that partial discharge becomes, and all other performances are also unstable simultaneously, thereby directly affect the quality of product, product cannot be worked safely and steadly, thereby directly affected safety and normal use of electric power system.
Utility model content
The applicant, for above-mentioned problem, is studied improvement, and a kind of circuit-breaker capacitor is provided, simple in structure, effectively reduce the loss of circuit-breaker capacitor itself, reduce production costs, increase work efficiency, guarantee to reduce the climbing that recovers line voltage, play the effect that equal piezoelectricity is pressed; Further, compensation circuit-breaker capacitor internal negative pressure, keeps inner slight positive pressure state, effectively reduces the leakage of oil situation of circuit-breaker capacitor, reduces partial discharge, stablizes the properties of circuit-breaker capacitor, guarantees the quality of circuit-breaker capacitor; Make circuit-breaker capacitor safety, operation stably in electrical network for a long time, guarantee user's normal electricity consumption.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of circuit-breaker capacitor, comprise porcelain bushing, upper end cover and bottom end cover are fixedly connected on respectively the upper of described porcelain bushing, 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 circuit-breaker capacitor device body comprises by some lamellas and is stacked with the element group that the element that connects forms, the two ends of described element group are provided with liner, on described liner, be wound with at least two-layer aluminium foil, two foursquare pressing plates be pressed on the liner at described element group two ends and make the element of described element group and liner between compress, 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 circular-arc, and the device body contour that four described infill panels form after installing is cylindrical.
Further:
The described circuit-breaker capacitor device with it described expander of side is type inflatable expander, described type inflatable expander comprises the body of being made by bellows, two cappings are sealedly connected on respectively described body two ends, the described capping of one end is provided with valve double-screw bolt, described valve double-screw bolt 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 double-screw bolt, and the outer wall of described valve is provided with external screw thread; The valve of the described valve double-screw bolt described upper end cover that is threaded.
The valve of described valve double-screw bolt and described oil sealing screw thread 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.
On described liner, be wound with three layers of aluminium foil.
Technique effect of the present utility model is:
The disclosed a kind of circuit-breaker capacitor of the utility model, adopts the directly technology of overlap joint of aluminium foil 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 costs; Effectively reduce the loss of circuit-breaker capacitor itself, guarantee to reduce the climbing that recovers line voltage, play the effect that equal piezoelectricity is pressed; In addition, an expander in circuit-breaker capacitor adopts type inflatable expander, under low temperature environment, can keep the slight positive pressure state of circuit-breaker capacitor inside, effectively reduce the leakage of oil situation of circuit-breaker capacitor under low temperature environment, guarantee that partial discharge is less than 5PC, the property indices of stabilising condenser; Guarantee the quality of circuit-breaker capacitor, make circuit-breaker capacitor safety, operation stably in electrical network for a long time, guarantee user's normal electricity consumption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
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, embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model comprises porcelain bushing 3, upper end cover 6 and bottom end cover 4 are fixedly connected on respectively the upper/lower terminal of porcelain bushing 3 by screw, between upper end cover 6 and bottom end cover 4 and porcelain bushing 3, be respectively equipped with sealing ring 7, 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, on liner 201, be wound around the aluminium foil that haves three layers, two foursquare pressing plates 202 be pressed on the liner 201 at element group 203 two ends and make the element 208 of element group 203 and liner 201 between compress, pressing plate 202 is made by 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 circular-arc, 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 form after installing 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, in use, can reduce the heat expansion pressure of impregnating agent, save impregnating agent.Circuit-breaker capacitor device body 2, when assembling, is tightened in the two ends of 3 block filling plates 205 respectively with screw 204 on three corresponding sides of pressing plate 202, forms a container with a lateral opening, and this lateral opening is used for putting into element group 203; Element group 203 is packed in the groove of three infill panels, 205 formations, every piece element 208 in element group 203, as shown in the element overlap joint enlarged drawing of Fig. 4, directly by the material of aluminum foil gapless of element itself, overlap, then on liner 201, be wound around the two ends that are 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 welding, and also no-welding-spot, increases work efficiency, and saves welding material, cost of labor and the electricity charge, reduces production costs.In the present embodiment, between every piece element 208, directly use aluminium foil overlapping technology, without any solder joint, welding thing, device body is whole to superpose mutually for every piece element, and two ends directly compress with pressing plate 202 and aluminium foil, have increased compression coefficient, guarantee that between each element, contact is good.
In the present embodiment, the expander 1 of circuit-breaker capacitor device body 2 tops is type inflatable expander, as Fig. 1, shown in 5, type inflatable expander comprises body 102, body 102 is made by bellows, 2 cappings 101 are distinguished seal weldings at the two ends of body 102, by body 102 and 2 cappings 101, form a seal chamber, in a capping 101 therein, offer a through hole and be welded with valve double-screw bolt 103, valve double-screw bolt 103 is provided with valve 105, valve 105 is communicated with the inner chamber of body by the through hole in capping 101, valve inside 104 is arranged in the valve on valve double-screw bolt 103 and tightens, thereby by the valve inside 104 on valve double-screw bolt 103, can be 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 double-screw bolt 103 are threaded in the same screwed hole of upper end cover 6, the valve 105 of valve double-screw bolt 103 is positioned at the below of oil sealing screw 5, can conveniently at the scene of facility, open oil sealing screw 5, to inflating 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 to the below of the upper end cover 6 of circuit-breaker capacitor, the valve 105 of the valve double-screw bolt 103 of type inflatable expander is screwed in upper end cover 6, valve 105 is positioned at the below of oil sealing screw 5, when circuit-breaker capacitor integral body installs after also vacuum impregnation, just can, directly to valve gas injection, increase its internal pressure.Circuit-breaker capacitor just can keep the state of inner pressure-fired in the situation that temperature is low like this.Owing to adopting type inflatable expander, can to the expander in circuit-breaker capacitor, inflate according to ambient conditions, 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 guarantees be less than 5PC.
Claims (6)
1. a circuit-breaker capacitor, comprise porcelain bushing, upper end cover and bottom end cover are fixedly connected on respectively the upper of described porcelain bushing, 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, it is characterized in that: described circuit-breaker capacitor device body comprises by some lamellas and is stacked with the element group that the element that connects forms, the two ends of described element group are provided with liner, on described liner, be wound with at least two-layer aluminium foil, two foursquare pressing plates be pressed on the liner at described element group two ends and make the element of described element group and liner between compress, 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 circular-arc, and the device body contour that four described infill panels form after installing is cylindrical.
2. according to circuit-breaker capacitor claimed in claim 1, it is characterized in that: the described circuit-breaker capacitor device with it described expander of side is type inflatable expander, described type inflatable expander comprises the body of being made by bellows, two cappings are sealedly connected on respectively described body two ends, the described capping of one end is provided with valve double-screw bolt, described valve double-screw bolt 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 double-screw bolt, and the outer wall of described valve is provided with external screw thread; The valve of the described valve double-screw bolt described upper end cover that is threaded.
3. according to circuit-breaker capacitor claimed in claim 2, it is characterized in that: the valve of described valve double-screw bolt and described oil sealing screw thread are connected in the same screwed hole of described upper end cover.
4. according to circuit-breaker capacitor claimed in claim 2, it is characterized in that: two described cappings are welded on described body two ends.
5. according to circuit-breaker capacitor claimed in claim 1, it is characterized in that: the outer coaxial sleeve of described expander is equipped with support cylinder.
6. according to circuit-breaker capacitor claimed in claim 1, it is characterized in that: on described liner, be wound with three layers of aluminium foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395336.8U CN203931812U (en) | 2014-07-16 | 2014-07-16 | Circuit-breaker capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420395336.8U CN203931812U (en) | 2014-07-16 | 2014-07-16 | Circuit-breaker capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203931812U true CN203931812U (en) | 2014-11-05 |
Family
ID=51827585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420395336.8U Expired - Fee Related CN203931812U (en) | 2014-07-16 | 2014-07-16 | Circuit-breaker capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203931812U (en) |
Cited By (2)
| 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 |
-
2014
- 2014-07-16 CN CN201420395336.8U patent/CN203931812U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| WO2020119270A1 (en) * | 2018-12-14 | 2020-06-18 | 西安西电电力电容器有限责任公司 | Capacitor apparatus and manufacturing method therefor, and capacitance type voltage transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20180716 |