CN1103487C - Internal fuse protected dry self-healing high-voltage capacitor element - Google Patents
Internal fuse protected dry self-healing high-voltage capacitor element Download PDFInfo
- Publication number
- CN1103487C CN1103487C CN 98114200 CN98114200A CN1103487C CN 1103487 C CN1103487 C CN 1103487C CN 98114200 CN98114200 CN 98114200 CN 98114200 A CN98114200 A CN 98114200A CN 1103487 C CN1103487 C CN 1103487C
- Authority
- CN
- China
- Prior art keywords
- electric capacity
- voltage capacitor
- capacitor element
- dry self
- fuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 30
- 239000006004 Quartz sand Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011347 resin Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 5
- 239000005030 aluminium foil Substances 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 6
- 239000011104 metalized film Substances 0.000 claims description 6
- 238000001465 metallisation Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 239000011888 foil Substances 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 11
- 238000000576 coating method Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 11
- 239000010408 film Substances 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000016571 aggressive behavior Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000035876 healing Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- BSWGGJHLVUUXTL-UHFFFAOYSA-N silver zinc Chemical compound [Zn].[Ag] BSWGGJHLVUUXTL-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to a dry-type self-healing high-voltage capacitor element protected by inner fuses, which can reliably extinguish arc after stricken and quit operation quickly, and has the advantages of high voltage level, small loss and long service life. The present invention is formed by element bodies, each of which is composed of a metal spraying layer, electrode lead wires, and rolling elements that internally comprise metallized capacitors and aluminum foil capacitors, wherein the element bodies are arranged in a casing, resin is filled between the element bodies, and inner fuses which are connected in series with electrodes of the elements are arranged in the elements. The present invention is characterized in that metal films in the metallized capacitors have multi-string structures, at least two inner string capacitors are formed, and quartz sand is filled at the peripheries of the inner fuses.
Description
Technical field
The capacitor element of the present invention for using in the electric power system, particularly a kind of internal fuse protected dry self-healing high-voltage capacitor element.
Background technology
The coating of existing self-healing capacitor component is aluminium film or zinc-aluminium film, when such element is made capacitor, is oil immersion or half dry type (waxdip) structure, and the problem of its existence is an easy firing; Because this capacitor must be put into hermetically sealed container, adopts pressure protective device more, when higher working voltage, the arcing distance is not enough, arc light may occur.Therefore, above-mentioned capacitor is unsuitable for the higher occasion use of security requirement.Occur a kind of dry-type self-healing capacitor element at home, it is the suit heat-shrink tube on capacitor element, to get rid of the air in the element.Because it can't the emptying air, coating is oxidation very easily, causes loss big, and the life-span is low; And after puncturing, can not be in time out of service reliably, cause temperature to raise, easily cause fire trouble.A kind of " self healing capacitor and manufacture method thereof " is provided in U.S. Pat 4509234, it has one deck oil film (vacuumizing the back immersion oil) on element body, to prevent the coating oxidation, reduce condenser capacity loss and capacity loss, said capacitor constitutes main capacitor by silver-zinc coating and polypropylene screen, roll an aluminium foil electric capacity in parallel with main capacitance in the main capacitance outside, in skeleton, be placed with the interior fuse of connecting and with resin-sealed with main capacitance, so that behind the capacitor breakdown, interior fuse failure makes capacitor out of service.Because its silver-colored zinc coating is a whole plate, make its main capacitance that one group of pole plate only be arranged, add that it adopts single-layer medium, so its voltage etc. is extremely low, can only be for below the 1000KV.If it is use, necessary with a plurality of self healing capacitor foreign aggressions as the high pressure occasion.After its foreign aggression, contact increases greatly, and reliability is reduced.In addition, during owing to fuse failure, with at first the weakness from fuse is disconnected strong, when overtension, the phenomenon of restriking will appear.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of electric pressure height is provided, punctures reliable arc extinguishing in back and internal fuse protected dry self-healing high-voltage capacitor element out of service rapidly and that loss is little, the life-span is long.
The present invention is such: it is by the element that rolls that includes metallization electric capacity and aluminium foil electric capacity, gilding layer and contact conductor composed component body, described metallization electric capacity and aluminium foil electric capacity roll on skeleton and are in parallel, described gilding layer be arranged on roll element on, on the lower surface, and electrode is drawn by gilding layer, element body is placed in the enclosure, be filled with resin therebetween, in element, be placed with the interior fuse of connecting with this element electrode, it is characterized in that, metalized film in the said metallization electric capacity constitutes at least two inner series electric capacity, is filled with quartz sand around the said interior fuse.
Internal fuse protected dry self-healing high-voltage capacitor element according to above-mentioned is respectively installed with shielding cap on upper and lower gilding layer, come off to prevent gilding layer.
According to above-mentioned internal fuse protected dry self-healing high-voltage capacitor element, on contact conductor, be set with heat-shrink tube, to improve local discharging level and insulation property.
Advantage of the present invention is:
1, because the present invention has realized the small components cascaded structure at element internal, the element rated voltage is brought up to more than the 1000V, thereby, reduced the series connection quantity of making power capacitor of this element, greatly improved the reliability of capacitor.
2, interior fuse is placed in the quartz sand with arc extinguishing effect, can guarantees the reliable disjunction under high voltage more of this element, the generation of the phenomenon that prevents to restrike and other electrical equipment is exerted an influence.
3, gilding layer there is protective effect, and can further reduces loss, reduce capacitance loss, improve the anti-ability of shoving; Also can improve local discharging level and insulation property.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 rolls element (three inner series electric capacity) among the present invention
Launch schematic diagram;
Fig. 3 is metalized film among the present invention (two an inner series electric capacity)
Structural representation.
Fig. 4 is a C portion amplification view among Fig. 1;
Fig. 5 is a D portion enlarged diagram among Fig. 1.
Embodiment
Embodiment 1:
As Fig. 1,3,4, shown in 5, it has a skeleton 3, ' on skeleton 3 ', roll element 3, the said element 3 that rolls comprises metalized film 31, aluminium foil 32 and polypropylene screen 33, constitute main capacitance and aluminium foil electric capacity respectively, an electric isolating bar 31A is arranged on the coating of metalized film 31 wherein, making this coating is two sections pole plates, constitute two groups of pole plates of connecting with its existing adjacent coating, thereby form two inner series electric capacity, fuse 4 in skeleton 3 ', being placed with, and be filled with quartz sand 5, use rubber cushion 1 at skeleton 3 ' two ends, 6 seal, said in fuse 4 be connected on the electrode of this element, roll element 3 on, gilding layer 7 is arranged on the lower surface, make main capacitance and the parallel connection of aluminium foil electric capacity, and extraction electrode 10, suit heat-shrink tube 11 on contact conductor 10, above composed component body, on element body, be soaked with one deck oil film, on gilding layer 7, be set with shielding cap 8, above element body be placed in the shell 9, be filled with resin 2 therebetween.
Embodiment 2:
As Fig. 1,2,4, shown in 5, it has a skeleton 3 ', on skeleton 3 ', roll element 3, the said element 3 that rolls comprises metalized film 31, aluminium foil 32 and polypropylene screen 33, constitute main capacitance and aluminium foil electric capacity respectively, wherein the coating on the adjacent metal film 31 has an electric isolating bar 31A who staggers respectively, making coating is two sections pole plates, make the coating on the adjacent metal film 31 form three groups of pole plates of connecting, thereby form three inner series electric capacity, fuse 4 in being placed with in skeleton 3 ', and be filled with quartz sand 5, use rubber cushion 1 at skeleton 3 ' two ends, 6 seal, fuse 4 is connected on the electrode of this element in said, roll element 3 on, gilding layer 7 is arranged on the lower surface, make main capacitance and the parallel connection of aluminium foil electric capacity, extraction electrode lead-in wire 10 on gilding layer 7, suit heat-shrink tube 11 on contact conductor 10, insulate and local discharging level to improve, above composed component body, said element body is soaked in oil after vacuumizing, to form oil film on the surface, on gilding layer 7, be set with shielding cap 8, above element body be placed in the shell 9, be filled with resin 2 therebetween.
Interior fuse 4 among the embodiment 1,2 also can be placed on and roll outside the element.
Claims (4)
1; a kind of internal fuse protected dry self-healing high-voltage capacitor element; it is by the element that rolls that includes metallization electric capacity and aluminium foil electric capacity; gilding layer and contact conductor composed component body; described metallization electric capacity and aluminium foil electric capacity roll on skeleton and are in parallel; described gilding layer be arranged on roll element on; on the lower surface; and electrode is drawn by gilding layer; element body is placed in the enclosure; be filled with resin therebetween; in element, be placed with the interior fuse of connecting with this element electrode; it is characterized in that; metalized film in the said metallization electric capacity constitutes at least two inner series electric capacity, is filled with quartz sand around the said interior fuse.
2, internal fuse protected dry self-healing high-voltage capacitor element according to claim 1 is characterized in that, is respectively installed with shielding cap on upper and lower gilding layer.
3, internal fuse protected dry self-healing high-voltage capacitor element according to claim 1 and 2 is characterized in that, is set with heat-shrink tube on contact conductor.
4, internal fuse protected dry self-healing high-voltage capacitor element according to claim 1 is characterized in that, said interior fuse is placed in the skeleton that rolls element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98114200 CN1103487C (en) | 1998-07-29 | 1998-07-29 | Internal fuse protected dry self-healing high-voltage capacitor element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98114200 CN1103487C (en) | 1998-07-29 | 1998-07-29 | Internal fuse protected dry self-healing high-voltage capacitor element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1207568A CN1207568A (en) | 1999-02-10 |
| CN1103487C true CN1103487C (en) | 2003-03-19 |
Family
ID=5223875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98114200 Expired - Fee Related CN1103487C (en) | 1998-07-29 | 1998-07-29 | Internal fuse protected dry self-healing high-voltage capacitor element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103487C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4698474B2 (en) * | 2006-04-28 | 2011-06-08 | 双信電機株式会社 | Film capacitor |
| CN101339846B (en) * | 2008-08-12 | 2011-03-23 | 中国西电电气股份有限公司 | Self-healing capacitor component having internal protection |
| CN106328375B (en) * | 2016-10-19 | 2018-05-22 | 华中科技大学 | A kind of fuse parameter acquiring method for DC filter capacitors |
-
1998
- 1998-07-29 CN CN 98114200 patent/CN1103487C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1207568A (en) | 1999-02-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 98114200.1 of the invention patents in the current issue of authorization announcement, and at the same time corresponding to the 98238427 utility model patent to be given up, and in the 19 volume of the 12 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |