CN201994654U - 110kV resistance-capacitance absorber - Google Patents
110kV resistance-capacitance absorber Download PDFInfo
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- CN201994654U CN201994654U CN2011201465328U CN201120146532U CN201994654U CN 201994654 U CN201994654 U CN 201994654U CN 2011201465328 U CN2011201465328 U CN 2011201465328U CN 201120146532 U CN201120146532 U CN 201120146532U CN 201994654 U CN201994654 U CN 201994654U
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Abstract
The utility model discloses a resistance-capacitance absorber for a 110kV system so as to limit various switching overvoltages generated in a 110kV power system. In a technical scheme provided by the utility model, the resistance-capacitance absorber is formed by serially connecting a high-power ceramic noninductive resistor and a 110kV dry-type high-voltage capacitor which is formed by serially connecting a plurality of dry-type capacitors, the 110kV dry-type high-voltage capacitor is arranged in a shell internally filled with epoxy resin, the high-power ceramic noninductive resistor is arranged in a resistor cover and connected with 110kV equipment to be protected, and the 110kV dry-type high-voltage capacitor is grounded directly. The resistance-capacitance absorber disclosed by the utility model can be used for effectively limiting the switching overvoltage of the 110kV system so as to smooth the waveforms and decrease the gradient and amplitude of the switching overvoltage, has the advantages of stable property, simple structure, small size and the like, and is convenient to install and popularize.
Description
Technical field
The utility model relates to a kind of 110kV high-voltage electric power system rc absorber, be specifically related to can to suppress cut-off overvoltage effectively in a kind of 110kV electric power system, the overvoltage of restriking, three-phase cut-off the rc absorber of switching overvoltages such as overvoltage simultaneously, belongs to the power transmission and distribution field.
Background technology
In China 110kV electric power system, have advantages such as volume is little, in light weight, high-performance, high reliability, convenient, the suitable frequent operation of maintenance test because of vacuum switchgear, obtained popularization and application energetically.But what bring is that various switching overvoltages are walked crosswise thereupon, the power equipment of many high values is constantly burnt, damage, serious harm the safe operation of electrical network.In the 110kV electric power system, the main no gap MOA lightning arrester that adopts is limited, and is well-known at present; a zinc oxide arrester amplitude limit is not limit frequently; belonging to the pressure sensitive element, can't effectively protect the insulation of 110kV power equipment, is the main cause that power equipment damages.
At present, in the 110kV electric power system, owing to reasons such as technology, technologies, still not having a kind of protection electrical equipment to accomplish can the over-voltage amplitude, rc absorber that again can the over-voltage frequency.
The utility model content
The purpose of this utility model is all kinds of switching overvoltages that produce in the 110kV electric power system in order effectively to be limited in, and discloses a kind of 110kV rc absorber, and this absorber can effectively absorb the switching overvoltage that produces in the 110kV electrical network.
The technical solution of the utility model is as described below:
110kV system rc absorber, comprise 110kV dry-type high-voltage capacitor 5 and high-power ceramic noninductive resistor 1,110kV dry-type high-voltage capacitor 5 is to be in series by several dry-type capacitors, and 110kV dry-type high-voltage capacitor 5 and high-power ceramic noninductive resistor 1 are in series with each other.
Its feature also is: described 110kV dry-type high-voltage capacitor 5 is arranged on inner embedding to be had in the housing of epoxy resin 6, and epoxy tube 4 surfaces are once molding formed with silicon rubber to be silicone rubber sleeve 3.
Its feature also is: high-power ceramic noninductive resistor 1 is installed in the resistance cover 2.
Its feature also is: described high-power ceramic noninductive resistor 1 connects the protected equipment of 110kV, described 110kV dry-type high-voltage capacitor 5 direct ground connection.
The utility model is after having adopted technique scheme, it is by means of the acting in conjunction of high-power ceramic noninductive resistor 1 and 110kV dry-type high-voltage capacitor 5, it can effectively limit superpotential moment vibration of 110kV system operation and high-frequency current, the waveform of switching overvoltage is slowed down, steepness and amplitude reduce, have stable performance, simple in structure, advantage such as volume is little, be convenient to install and promote.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model 110kV rc absorber.
Accompanying drawing 2 is circuit theory diagrams of the utility model 110kV rc absorber.
Description of reference numerals is as follows: high-power ceramic noninductive resistor 1, resistance cover 2, silicone rubber sleeve 3, epoxy tube 4,110kV dry-type high-voltage capacitor 5, epoxy resin 6.
Embodiment
In conjunction with the accompanying drawings the utility model is described, makes above-mentioned feature and advantage become clear more and understanding easily, the utility model is described in detail below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, the utility model 110kV rc absorber comprises that a high-power ceramic noninductive resistor 1 and a 110kV dry-type high-voltage capacitor 5 are in series.
Described 110kV dry-type high-voltage capacitor is to be in series by 14 dry-type capacitors.
It is solid dielectric that described 110kV dry-type high-voltage capacitor is selected high-quality, High Performance Insulation material polypropylene metallic film for use.
Described 110kV dry-type high-voltage capacitor 5 is arranged on epoxy tube 4 inside that inner embedding has epoxy resin 6, and this 110kV dry-type high-voltage capacitor 5 is encapsulated among the epoxy resin, and described epoxy tube 4 is once molding formed through silicone rubber sleeve 3.
As shown in Figure 2; described high-power ceramic noninductive resistor 1 is in series with each other with 110kV dry-type high-voltage capacitor 6, and wherein, high-power ceramic noninductive resistor 1 connects the protected equipment of high pressure; 110kV dry-type high-voltage capacitor 6 direct ground connection, the two is combined mutually.
The utility model is after having taked technique scheme, can effectively limit the 110kV switching overvoltage, the waveform of switching overvoltage is slowed down, steepness and amplitude reduce, and adds the damping action of high-power ceramic noninductive resistor, and the higher-order of oscillation is decayed rapidly, epoxy resin has high insulation, advantage such as fire-retardant, it is big that high-power ceramic noninductive resistor has an energy tolerance, and no inductance is high pressure resistant, volume is little, steady performance.The design of this 110kV dry-type high-voltage capacitor has reached the requirement of GB311.1 standard fully.
It should be noted that; top specific descriptions are just in order to explain the utility model; be not to be used to limit the utility model; specific embodiment is exemplary; any improvement and distortion that those skilled in the art carries out on the basis of the foregoing description all can drop in the protection range of the present utility model.Protection range of the present utility model is limited by claim and equivalent thereof.
Claims (5)
1.110kV rc absorber, it is characterized in that: comprise 110kV dry-type high-voltage capacitor (5) and high-power ceramic noninductive resistor (1), 110kV dry-type high-voltage capacitor (5) is to be in series by several dry-type capacitors, 110kV dry-type high-voltage capacitor (5) is in series with each other with high-power ceramic noninductive resistor (1), 110kV dry-type high-voltage capacitor (5) is arranged on inner embedding to be had in the housing of epoxy resin (6), epoxy tube (4) surface is once molding formed with silicon rubber to be silicone rubber sleeve (3), and high-power ceramic noninductive resistor (1) is installed in the resistance cover (2).
2. 110kV rc absorber according to claim 1 is characterized in that: 110kV dry-type high-voltage capacitor is to be in series by 14 dry-type capacitors.
3. 110kV rc absorber according to claim 1 is characterized in that: high-power ceramic noninductive resistor (1) connects the protected equipment of 110kV, and 110kV dry-type high-voltage capacitor (5) is ground connection directly.
4. 110kV rc absorber according to claim 1 is characterized in that: it is solid dielectric that 110kV dry-type high-voltage capacitor is selected high-quality, High Performance Insulation material polypropylene metallic film for use.
5. 110kV rc absorber according to claim 1 is characterized in that: high-power ceramic noninductive resistor (1) connects the protected equipment of high pressure, and 110kV dry-type high-voltage capacitor (6) is ground connection directly, and the two is combined mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201465328U CN201994654U (en) | 2011-05-11 | 2011-05-11 | 110kV resistance-capacitance absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201465328U CN201994654U (en) | 2011-05-11 | 2011-05-11 | 110kV resistance-capacitance absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994654U true CN201994654U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201465328U Expired - Fee Related CN201994654U (en) | 2011-05-11 | 2011-05-11 | 110kV resistance-capacitance absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010351A (en) * | 2019-04-26 | 2019-07-12 | 无锡市联达电器有限公司 | A kind of extra-high voltage equalizing capacitor capacitance-resistance device |
-
2011
- 2011-05-11 CN CN2011201465328U patent/CN201994654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010351A (en) * | 2019-04-26 | 2019-07-12 | 无锡市联达电器有限公司 | A kind of extra-high voltage equalizing capacitor capacitance-resistance device |
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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 |
Granted publication date: 20110928 Termination date: 20150511 |
|
| EXPY | Termination of patent right or utility model |