CN101577179A - Low-noise high-voltage power capacitor unit - Google Patents
Low-noise high-voltage power capacitor unit Download PDFInfo
- Publication number
- CN101577179A CN101577179A CNA2008103014602A CN200810301460A CN101577179A CN 101577179 A CN101577179 A CN 101577179A CN A2008103014602 A CNA2008103014602 A CN A2008103014602A CN 200810301460 A CN200810301460 A CN 200810301460A CN 101577179 A CN101577179 A CN 101577179A
- Authority
- CN
- China
- Prior art keywords
- capacitor unit
- plate
- voltage power
- sound
- noise high
- 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.)
- Pending
Links
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention provides a low-noise high-voltage power capacitor unit, which comprises a mandril, a box shell and a wire connecting terminal, wherein the upper end and the lower end in the box shell are provided with sound-absorbing devices; the sound-absorbing devices are sound-absorbing cavities and/or vibration energy-dissipating devices; the sound-absorbing cavities are cavities of which the upper ends and the lower ends in the box shell are parallel to the placement direction of an element and the inner height divided by a partition plate is 1 to 100 mm, and the inner wall can adhere a sound-absorbing material with the thickness of 0.1 to 10 mm; the vibration energy-dissipating device is 5 to 8 layers of overlapping insulation frame plates and insulation vibrating plates, one vibrating plate is arranged between each two frame plates, and the frame plate is a porous plate with the thickness of 1 to 5 mm, and holes accounts for 50 to 90 percent of the total area; the frame plates are provided with rectangular frames with the same tops and bottoms as the mandril; and the vibrating plate is a rectangular plate with the same thickness of 0.1 to 0.8 mm as the top and the bottom of the mandril; and the vibration energy-dissipating device is fixed on the top and the bottom of the mandril, and the outside of the vibration energy-dissipating device is a splint of the mandril of a capacitor. The low-noise high-voltage power capacitor unit obviously reduces noise of the mandril of the capacitor, and prevents the spreading of the noise in running; and the sound-absorbing device is positioned in the box shell of the capacitor unit and does not need arranging additionally.
Description
(1) technical field:
The present invention relates to high-voltage power capacitor, be specially a kind of low noise high-voltage power capacitor unit that is used for general electric power system and super high voltage direct current electricity transmission system.
(2) background technology:
In electric power system, particularly in the super high voltage direct current electricity transmission system,, need to use the ac filter capacitor for the harmonic component of bucking-out system lagging reactive power, filtering appts AC side.For the alternating current component of filtering appts DC side, need to use DC filter capacitors.This class capacitor device is made up of a plurality of capacitor units, and it is big to have a capacity, and floor space is big, the characteristics that pylon is high.The fuse that a plurality of capacity cell strings is arranged in the case shell of capacitor unit and constitute.The super high voltage direct current electricity transmission system is in the AC and DC conversion process, DC side and AC side all produce a large amount of harmonic waves, when harmonic current passes through to exchange parallel connection, filtering capacitor and DC filter capacitors, medium is subjected to the effect of alternating electric field power and produces vibration in the capacitor unit, cause the surface vibration of capacitor unit case shell, the air on next-door neighbour's capacitor unit case shell surface vibrates generation sound thereupon.
Because the harmonic content of super high voltage direct current electricity transmission system is bigger, capacitor device is equipped with intensive relatively capacitor unit, makes that the noise pollution problem of capacitor unit is very outstanding.Under certain condition, near the synthetic back sense of hearing noise that produces capacitor device of the noise of all capacitor units may be greater than 60dB.
Along with the raising of environmental requirement, " People's Republic of China's pollution from environmental noise is prevented therapy " issuing and implementation, to electric power system, particularly to carry out noise abatement imperative for the AC and DC filtering capacitor that uses in the super high voltage direct current electricity transmission system.The national environmental protection method requires the noise of super high voltage direct current electricity transmission current conversion station must not surpass 55 decibels daytime, and night must not be above 45 decibels.Go up the high-voltage power capacitor of producing at present both at home and abroad and all do not take effective noise reduction measure, make that the noise problem of current conversion station is very outstanding.
In order to reach the requirement of environmental law, reduce the AC and DC parallel capacitor device running noises of super high voltage direct current electricity transmission system, the utility application 200820104113.6 of my company " capacitor device " with sound absorption cover, designed the sound absorption cover on the capacitor unit case shell that is installed in capacitor device, to stop the noise that produces with the absorption capacitor unit.Though the effect of noise reduction is arranged, installation workload increases, and device volume strengthens, and cost improves.
(3) summary of the invention:
The objective of the invention is to design a kind of electric power system that is used for, the low noise high-voltage power capacitor unit of super high voltage direct current electricity transmission system particularly, sound absorber is set up at two ends in capacitor unit case shell, the noise that produces when reducing the capacitor device operation effectively.
The low noise high-voltage power capacitor unit of the present invention's design, comprise fuse, case shell and binding post, fuse mainly is made of a plurality of capacitor element series connection and/or parallel connection, is immersed in the impregnating agent in the case shell, and the output of fuse is drawn by the binding post at case shell top.Two ends install sound absorber additional up and down in capacitor unit case shell.
Sound absorber is sound absorption cavity and/or vibration energy dissipator.
Sound absorption cavity in capacitor unit case shell up and down two ends be parallel to the placement direction of element, the cavity that dividing plate is separated, the height in the sound absorption cavity is 1mm～100mm.The inwall of sound absorption cavity can attach sound-absorbing material, and sound-absorbing material can be aluminum filament abatvoix or wooden abatvoix or polyester abatvoix or cloth art abatvoix etc., and sound-absorbing material thickness is 0.1mm～10mm.
The vibration energy dissipator is the Insulating frame plate and the insulation oscillating plate of 5～8 plies, be one deck oscillating plate between every two-layer frame plate, frame plate is a porous plate, the thickness of plate is 1mm～5mm, the area in hole accounts for 50%～90% of the gross area, can be square opening, also can be circular port, and the rectangular shaped rim identical with bottom rectangle with the fuse top arranged, can be paper porous plate or epoxy porous plate or phenolic aldehyde porous plate.The insulation oscillating plate is the rectangular slab identical with bottom rectangle with the fuse top, and its thickness is 1mm～0.8mm, can be cardboard or epoxy plate or phenolic board.The vibration energy dissipator is fixed in the top and the bottom of fuse, and it is outer to be the clamping plate of capacitor body.
The advantage of low noise high-voltage power capacitor unit of the present invention is: 1, obviously reduce the noise that the capacitor body vibration produces, the propagation of noise that stops capacitor unit to produce when charging operation; 2, sound absorber is in the capacitor unit case shell, does not need to install separately, and is easy to use.
(4) description of drawings:
Fig. 1 is the structural representation of this low noise high-voltage power capacitor unit embodiment 1;
Fig. 2 is the enlarged diagram of the top sound absorption cavity of Fig. 1;
Fig. 3 is the enlarged diagram of the bottom sound absorption cavity of Fig. 1;
Fig. 4 is the structural representation of this low noise high-voltage power capacitor unit embodiment 2;
Fig. 5 is the vibration energy dissipator enlarged diagram of Fig. 4;
Fig. 6 is Fig. 5 A-A schematic cross-section;
Fig. 7 is the structural representation of this low noise high-voltage power capacitor unit embodiment 3.
(5) embodiment:
The embodiment 1 of this low noise high-voltage power capacitor unit comprises the binding post 1 of capacitor unit as shown in Figure 1 to Figure 3, and tank of power capacitor 3 mainly is positioned at the case shell by capacitor element string and the fuse 7 that is formed by connecting, impregnated in the insulation impregnating agent.The cavity that top in the capacitor unit case shell 3 and bottoms have dividing plate to separate is respectively sound absorption cavity 2 and 4, and sound absorption cavity 2 and 4 dividing plate 2-1 and 4-2 and tank of power capacitor 3 employings electric welding or argon arc welding or other welding manner are connected; The sound absorption cavity 2 at top has the hole that cooperates with the binding post 1 of capacitor unit, binding post 1 passes sound absorption cavity 2, the sealing of the dividing plate 2-1 of lower floor and binding post 1 base portion, adhesive such as employing epoxy is bonding between the dividing plate 2-1 of this routine sound absorption cavity 2 and binding post 1 base portion, as shown in Figure 2.Also available card cover be tightly connected dividing plate 2-1 and case shell 3 upper ends reliably are connected 3 on sound absorption cavity 2 and case shell. Sound absorption cavity 2 and 4 internal height are 10mm.The inwall of sound absorption cavity 2,4 is pasted with sound-absorbing material 2-2 and the 4-1 that thickness is 2mm, and sound-absorbing material 2-2,4-1 are the aluminum filament abatvoixs, also can be wooden abatvoix or polyester abatvoix or cloth art abatvoix.
The embodiment 2 of this low noise high-voltage power capacitor unit as shown in Figs. 4-6, capacitor unit comprises binding post 1 equally, tank of power capacitor 3 and interior capacitor body 7 and impregnating agent thereof.Top in the capacitor unit case shell 3 and bottom respectively are equipped with vibration energy dissipator 6, vibration energy dissipator 6 is a kind of combined insulation plates, be the Insulating frame plate 6-1 and the insulation oscillating plate 6-2 of 6 plies, be one deck oscillating plate 6-2 between every two-layer frame plate 6-1, frame plate 6-1 is a porous plate, its thickness is 3mm, the area of square opening accounts for 80% of the gross area, and the rectangular shaped rim identical with bottom rectangle with fuse 7 tops arranged, this routine frame plate 6-1 is the paper porous plate, also can be epoxy porous plate or phenolic aldehyde porous plate.Insulation oscillating plate 6-2 is the rectangular slab identical with bottom rectangle with fuse 7 tops, and its thickness is 0.5mm, and this routine oscillating plate 6-2 is a cardboard, also epoxy available plate or phenolic board.Vibration energy dissipator 6 is fixed in the top and the bottom of fuse 7, and it is outer to be the clamping plate 5 of capacitor body 7.
The embodiment 3 of this low noise high-voltage power capacitor unit as shown in Figure 7, top in the capacitor unit case shell 3 and bottoms are provided with sound absorption cavity 2,4 simultaneously and vibration energy dissipator 6 are installed, other structure of capacitor unit is identical with embodiment 1 and 2.
Claims (9)
1. a low noise high-voltage power capacitor unit comprises fuse (7), case shell (3) and binding post (1), and fuse (7) mainly is made of a plurality of capacitor element series connection and/or parallel connection, is immersed in the impregnating agent in the case shell (3); The output of fuse (7) is drawn by the binding post (1) at case shell (3) top; It is characterized in that: two ends install sound absorber additional up and down in capacitor unit case shell (3); Described sound absorber is sound absorption cavity (2,4) and/or vibration energy dissipator (6).
2. low noise high-voltage power capacitor unit according to claim 1, it is characterized in that: described sound absorption cavity (2,4) for capacitor unit case shell (3) in up and down two ends be parallel to the placement direction of element, the cavity that dividing plate (2-1,4-2) is separated, the interior height of sound absorption cavity (2,4) is 1mm～100mm.
3. low noise high-voltage power capacitor unit according to claim 2 is characterized in that: the inwall of described sound absorption cavity (2,4) is pasted with sound-absorbing material (2-2,4-1), and its thickness is 1mm～5mm.
4. low noise high-voltage power capacitor unit according to claim 3 is characterized in that: described sound-absorbing material (2-2,4-1) is aluminum filament abatvoix or wooden abatvoix or polyester abatvoix or cloth art abatvoix.
5. according to each described low noise high-voltage power capacitor unit in the claim 2 to 4, it is characterized in that: the sound absorption cavity (2) of described capacitor unit case shell (3) inner top has the hole that cooperates with the binding post (1) of capacitor unit, binding post (1) passes sound absorption cavity (2), lower floor's dividing plate (2-1) of sound absorption cavity (2) and the sealing of binding post (1) base portion.
6. low noise high-voltage power capacitor unit according to claim 1, it is characterized in that: described vibration energy dissipator (6) is the insulation compoboard, be the Insulating frame plate (6-1) and the insulation oscillating plate (6-2) of 5～8 plies, between every two-layer frame plate (6-1) one deck oscillating plate (6-2), frame plate (6-1) is a porous plate, the thickness of frame plate (6-1) is 1mm～5mm; Insulation oscillating plate (6-2) is the rectangular slab identical with bottom rectangle with fuse (7) top, and its thickness is 0.1mm～0.8mm, and vibration energy dissipator (6) is fixed in the top and the bottom of fuse (7), and it is outer to be the clamping plate (5) of capacitor body (7).
7. low noise high-voltage power capacitor unit according to claim 6 is characterized in that: described frame plate (6-1) has the rectangular shaped rim identical with bottom rectangle with fuse (7) top, and the area in its hole accounts for 50%～90% of the gross area.
8. according to claim 6 or 7 described low noise high-voltage power capacitor units, it is characterized in that: the hole on the described frame plate (6-1) is square opening or circular port.
9. according to claim 6 or 7 described low noise high-voltage power capacitor units, it is characterized in that: described frame plate (6-1) is paper porous plate or epoxy porous plate or phenolic aldehyde porous plate; Described oscillating plate (6-2) is cardboard or epoxy plate or phenolic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103014602A CN101577179A (en) | 2008-05-07 | 2008-05-07 | Low-noise high-voltage power capacitor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103014602A CN101577179A (en) | 2008-05-07 | 2008-05-07 | Low-noise high-voltage power capacitor unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101577179A true CN101577179A (en) | 2009-11-11 |
Family
ID=41272075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103014602A Pending CN101577179A (en) | 2008-05-07 | 2008-05-07 | Low-noise high-voltage power capacitor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101577179A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937770A (en) * | 2010-08-31 | 2011-01-05 | 西安交通大学 | Low-noise power capacitor using interior compressible space structure of capacitor |
| CN101976102A (en) * | 2010-11-22 | 2011-02-16 | 东莞市金河田实业有限公司 | Computer case |
| CN102315016A (en) * | 2011-07-08 | 2012-01-11 | 日新电机（无锡）有限公司 | Power capacitor possessing noise shield device |
| CN103065790A (en) * | 2012-12-31 | 2013-04-24 | 桂林电力电容器有限责任公司 | High voltage power capacitor integrated sound insulation cover plate |
| CN103456491A (en) * | 2013-08-07 | 2013-12-18 | 国家电网公司 | Novel parallel capacitor for restraining switching surge of vacuum circuit breaker |
| CN104465079A (en) * | 2014-11-21 | 2015-03-25 | 西安交通大学 | Low noise power capacitor adopting double casing structure with damping |
| CN104705878A (en) * | 2013-12-14 | 2015-06-17 | 郑州市娅丽达服饰有限公司 | Epoxy glass fabric base plate |
| US9396875B2 (en) | 2013-06-14 | 2016-07-19 | Abb Technology Ltd | Terminal bushing sealing element |
| CN106910625A (en) * | 2017-02-28 | 2017-06-30 | 桂林电子科技大学 | A kind of low-noise power capacitor of use damping steel plate |
-
2008
- 2008-05-07 CN CNA2008103014602A patent/CN101577179A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937770A (en) * | 2010-08-31 | 2011-01-05 | 西安交通大学 | Low-noise power capacitor using interior compressible space structure of capacitor |
| CN101937770B (en) * | 2010-08-31 | 2012-05-23 | 西安交通大学 | Low-noise power capacitor using interior compressible space structure of capacitor |
| CN101976102A (en) * | 2010-11-22 | 2011-02-16 | 东莞市金河田实业有限公司 | Computer case |
| CN102315016A (en) * | 2011-07-08 | 2012-01-11 | 日新电机（无锡）有限公司 | Power capacitor possessing noise shield device |
| CN102315016B (en) * | 2011-07-08 | 2013-02-27 | 日新电机（无锡）有限公司 | Power capacitor possessing noise shield device |
| CN103065790A (en) * | 2012-12-31 | 2013-04-24 | 桂林电力电容器有限责任公司 | High voltage power capacitor integrated sound insulation cover plate |
| US9396875B2 (en) | 2013-06-14 | 2016-07-19 | Abb Technology Ltd | Terminal bushing sealing element |
| CN103456491A (en) * | 2013-08-07 | 2013-12-18 | 国家电网公司 | Novel parallel capacitor for restraining switching surge of vacuum circuit breaker |
| CN104705878A (en) * | 2013-12-14 | 2015-06-17 | 郑州市娅丽达服饰有限公司 | Epoxy glass fabric base plate |
| CN104465079A (en) * | 2014-11-21 | 2015-03-25 | 西安交通大学 | Low noise power capacitor adopting double casing structure with damping |
| CN106910625A (en) * | 2017-02-28 | 2017-06-30 | 桂林电子科技大学 | A kind of low-noise power capacitor of use damping steel plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101577179A (en) | Low-noise high-voltage power capacitor unit | |
| US20080089009A1 (en) | Storage device | |
| CN201199484Y (en) | Low-noise high-voltage power capacitor unit | |
| CN201893688U (en) | Megawatt power conversion component | |
| CN209388889U (en) | A kind of electrolytic capacitor | |
| CN205828579U (en) | A kind of coiled lithium ion battery | |
| CN103065805B (en) | A kind of rectangular block shape has the aluminium electrolutic capacitor module and structure of radiating surface | |
| CN201178032Y (en) | Capacitor device having noise absorption cover | |
| CN107170936A (en) | Lightweight electrokinetic cell bag | |
| JP2005093515A (en) | Metallized film capacitor, its manufacturing method, inverter circuit for driving automobile, and automobile using the same | |
| CN208329236U (en) | Substation's aluminum fiber multiple resonance Felt | |
| CN201518280U (en) | Capacitor device with noise reduction function | |
| CN206871071U (en) | A kind of train and railway car | |
| CN203026367U (en) | Explosion-proof type series capacitor with inductor internally connected in series | |
| CN104780749A (en) | Insulation shielding supporting plate and stacked power module | |
| CN107946081B (en) | Aluminium electrolutic capacitor and thin film capacitor parallel connection compound die group | |
| CN111370611A (en) | Power battery module | |
| CN207542081U (en) | A kind of low spurious inductance DC filter capacitors | |
| CN110767446A (en) | Noise reduction device and noise reduction method for power filter capacitor | |
| CN207052652U (en) | Lightweight electrokinetic cell bag | |
| CN201622936U (en) | DC support filter capacitor for automobile | |
| CN101615511B (en) | Low-noise power capacitor with microperforated panel and solid panel combining structure | |
| CN210443429U (en) | Filtering power capacitor | |
| CN103531355A (en) | Power capacitor with core vibration absorbers | |
| CN208093965U (en) | A kind of gas-filling cabinet and its cabinet, cable clip mounting bracket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091111 |