CN201918736U - High-voltage power capacitor - Google Patents
High-voltage power capacitor Download PDFInfo
- Publication number
- CN201918736U CN201918736U CN201020639921XU CN201020639921U CN201918736U CN 201918736 U CN201918736 U CN 201918736U CN 201020639921X U CN201020639921X U CN 201020639921XU CN 201020639921 U CN201020639921 U CN 201020639921U CN 201918736 U CN201918736 U CN 201918736U
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- China
- Prior art keywords
- voltage power
- power capacitor
- vibration
- capacitor
- core body
- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model relates to a capacitor unit of a power transmission and distribution system and particularly discloses a high-voltage power capacitor with low noise. The high-voltage power capacitor comprises a capacitor core and a metal casing for packaging the capacitor core, wherein two vibration damping muffler devices are also packaged in the metal casing; and the two vibration damping muffler devices are respectively arranged at the top and bottom of the capacitor core. The high-voltage power capacitor achieves the purpose of effectively suppressing the vibration of the capacitor core through the vibration damping muffler devices arranged at the top and bottom of the capacitor core, and also realizes the effect of reducing the noise and muffling for the product while the product performance is not affected.
Description
Technical field
The utility model relates to a kind of capacitor unit of electrical power trans mission/distribution system, is specifically related to a kind of low noise high-voltage power capacitor.
Background technology
As shown in Figure 1, existing high-voltage power capacitor comprises capacitor core body 1, be provided with one deck insulating oil 2 at described capacitor core body 1 outer surface, described capacitor core body 1 is installed in the metal box shell 3, described metal box shell 3 is generally stainless steel, is provided with the insulator 4 that is connected with capacitor core body 1 on the top of described metal box shell 3.
In electric power system, particularly use a large amount of high-voltage power capacitors in the super high voltage direct current electricity transmission system.The effect of power capacitor comprises:
1, electric power system provides reactive power compensation;
2, in the electric power system that has harmonic wave, the harmonic component that exists in the filtering electric power system.
In super high voltage direct current electricity transmission system, large-scale iron and steel enterprise using electricity system, there is a large amount of harmonic waves, when harmonic current flows through power capacitor, power capacitor internal electrode and insulating material are subjected to the influence of the distortion field of electric force that harmonic wave produces and vibrate, and cause the also vibration simultaneously of power capacitor integral body.Harmonic component is serious more, and the influence of distortion electric field power is big more, and the vibration of power capacitor is also big more, so the sound that power capacitor sends is also big more.
Noise is a kind of environmental pollution, along with the raising gradually of Environmental Protection in China consciousness, and the issuing and implementation of relevant laws and regulations simultaneously, to electric power system, the particularly big electric power system of harmonic content, carrying out the noise pollution control is the task of top priority.
In order to reduce the noise pollution of power capacitor, take following two kinds of schemes usually:
1, at the outside radome of installing of power capacitor, be used for noise reduction, but because volume is big, exists and install, difficulty improves, maintenance is complicated, cost increases, and is unfavorable for the capacitor heat radiation simultaneously, influences life of product.
2, be coated with in the capacitor outside and wrap up in acoustic damping materials or increase material with complex, constructional device etc. in inside.At the surface-coated other materials, influence the heat radiation of product when increasing cost, properties of product are caused bad influence.Add devices such as speciality elastic damping in inside, implement difficulty, effect is also not obvious.
The utility model content
In order to address the above problem, the high-voltage power capacitor that provides a kind of noise low is provided the purpose of this utility model.
For achieving the above object, technical scheme that the utility model adopts is as follows:
A kind of high-voltage power capacitor, comprise the capacitor core body, and the metal box shell that encapsulates described capacitor core body, in described metal box shell, also being packaged with two vibration-absorbing and silencing devices, described two vibration-absorbing and silencing devices are located at the top and bottom of described capacitor core body respectively.
Described high-voltage power capacitor, its vibration-absorbing and silencing device and described capacitor core body by integral forming or separate.
Described high-voltage power capacitor, its vibration-absorbing and silencing device comprises top board, side plate, base plate and embedded element, and described top board, side plate, base plate enclose and form a protection box, and described embedded element is installed in the described protection box.
Preferably, described embedded element is Biaxially oriented polypropylene (BOPP) film and aluminium foil.
Preferably, described top board is provided with sound-absorption hole.
Preferably, the punching rate of described top board is 0.05%～0.2%.
Preferably, described sound-absorption hole diameter is 0.02～2 millimeter.
Preferably, described top board is the insulating board of 4～5 millimeters thick.
Preferably, described side plate is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 2～4 layers.
Preferably, described base plate is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 1～5 layer.
The utility model reaches the vibration of effective suppression capacitor core body by at capacitor core body top and bottom the vibration-absorbing and silencing device being set, and realizes the quiet effect of product noise reduction when not influencing properties of product.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
Fig. 1 is the structural representation of existing high-voltage power capacitor unit;
Fig. 2 is an overall structure schematic diagram of the present utility model;
Fig. 3 is a vibration-absorbing and silencing device generalized section of the present utility model;
Fig. 4 is a vibration-absorbing and silencing device external structure schematic diagram of the present utility model.
Among the figure:
1, capacitor core body 2, insulating oil
3, metal box shell 4, insulator
5, vibration-absorbing and silencing device 51, top board
52, side plate 53, base plate
54, embedded element 511, sound-absorption hole
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Embodiment 1:
As shown in Figure 2, the open example of this enforcement a kind of high-voltage power capacitor, comprise capacitor core body 1 and two vibration-absorbing and silencing devices 5, these two vibration-absorbing and silencing devices 5 are located at the top and bottom of capacitor core body 1 respectively, vibration-absorbing and silencing device 5 and described capacitor core body 1 are one-body molded or separate, capacitor core body 1 is encapsulated in the metal box shell 3 with vibration-absorbing and silencing device 5, metal box shell 3 is generally stainless steel, be provided with one deck insulating oil 2 at capacitor core body 1 outer surface, be provided with the insulator 4 that is connected with capacitor core body 1 on the top of described metal box shell 3.
As shown in Figure 3 and Figure 4, vibration-absorbing and silencing device 5 comprises top board 51, side plate 52, base plate 53 and embedded element 54; Described top board 51 is the insulating board of 4～5 millimeters thick; Base plate 53 is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 1～5 layer; Side plate 52 is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 2～4 layers; Base plate 53 is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 1～5 layer.Top board 51, side plate 52, base plate 53 enclose and form a protection box, and embedded element 54 is installed in the described protection box, and top board 51 is provided with sound-absorption hole 511, and the punching rate of top board 51 is 0.05%～0.2%, and sound-absorption hole 511 diameters are 0.02～2 millimeter.
Wherein, embedded element 54 materials are selected Biaxially oriented polypropylene (BOPP) film and aluminium foil.
Wherein, during side plate 52 height change, can protect the embedded element 54 of different-thickness, embedded element 54 different sizes, different-thickness can be adjusted the effect of vibration damping, reach quiet effect by absorption of noise.
The utility model indoor design has increased the vibration damping silencing means, effectively the vibration of suppression capacitor core body.Simultaneously, the vibration-absorbing and silencing device is installed in the upper and lower of core body, forms an integral body with the capacitor core body, and the whole erection process press-fits in the process at common core body and just can realize, does not need additionally to increase personnel and equipment is operated.
The utility model can effectively suppress to cause because of harmonic component the vibration of core body by increasing the vibration-absorbing and silencing device, and is quiet respond well; Embedded element the selection of material is capacitor self material, when not influencing the requirement of product compatibility, conveniently draws materials; Vibration-absorbing and silencing device and power capacitor core body form one/or core body annex, reduce operation, produces easy, easily realization.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a high-voltage power capacitor comprises capacitor core body (1), and the metal box shell (3) that encapsulates described capacitor core body (1), it is characterized in that:
In described metal box shell (3), also be packaged with two vibration-absorbing and silencing devices (5);
Described two vibration-absorbing and silencing devices (5) are located at the top and bottom of described capacitor core body (1) respectively.
2. high-voltage power capacitor according to claim 1 is characterized in that:
Described vibration-absorbing and silencing device (5) is one-body molded or separate with described capacitor core body (1).
3. high-voltage power capacitor according to claim 1 and 2 is characterized in that:
Described vibration-absorbing and silencing device (5) comprises top board (51), side plate (52), base plate (53) and embedded element (54);
Described top board (51), side plate (52), base plate (53) enclose and form a protection box, and described embedded element (54) is installed in the described protection box.
4. high-voltage power capacitor according to claim 3 is characterized in that:
Described embedded element (54) is Biaxially oriented polypropylene (BOPP) film and aluminium foil.
5. high-voltage power capacitor according to claim 3 is characterized in that:
Described top board (51) is provided with sound-absorption hole (511).
6. high-voltage power capacitor according to claim 5 is characterized in that:
The punching rate of described top board (51) is 0.05%～0.2%.
7. high-voltage power capacitor according to claim 5 is characterized in that:
Described sound-absorption hole (511) diameter is 0.02～2 millimeter.
8. high-voltage power capacitor according to claim 3 is characterized in that:
Described top board (51) is the insulating board of 4～5 millimeters thick.
9. high-voltage power capacitor according to claim 3 is characterized in that:
Described side plate (52) is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 2～4 layers.
10. high-voltage power capacitor according to claim 3 is characterized in that:
Described base plate (53) is the insulating board of 1～5 millimeters thick, and the flaggy number of described insulating board is 1～5 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020639921XU CN201918736U (en) | 2010-11-30 | 2010-11-30 | High-voltage power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020639921XU CN201918736U (en) | 2010-11-30 | 2010-11-30 | High-voltage power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918736U true CN201918736U (en) | 2011-08-03 |
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ID=44418526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020639921XU Expired - Lifetime CN201918736U (en) | 2010-11-30 | 2010-11-30 | High-voltage power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480129A (en) * | 2010-11-30 | 2012-05-30 | 无锡赛晶电力电容器有限公司 | High voltage power capacitor |
| CN105140026A (en) * | 2015-09-18 | 2015-12-09 | 中国西电电气股份有限公司 | Mute power capacitor |
-
2010
- 2010-11-30 CN CN201020639921XU patent/CN201918736U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480129A (en) * | 2010-11-30 | 2012-05-30 | 无锡赛晶电力电容器有限公司 | High voltage power capacitor |
| CN105140026A (en) * | 2015-09-18 | 2015-12-09 | 中国西电电气股份有限公司 | Mute power capacitor |
| CN105140026B (en) * | 2015-09-18 | 2017-09-26 | 中国西电电气股份有限公司 | A kind of Jing Yin power capacitor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |