CN2935583Y - AC, DC filter capacitance for ultra-high voltage DC transmission system - Google Patents
AC, DC filter capacitance for ultra-high voltage DC transmission system Download PDFInfo
- Publication number
- CN2935583Y CN2935583Y CNU2006200353451U CN200620035345U CN2935583Y CN 2935583 Y CN2935583 Y CN 2935583Y CN U2006200353451 U CNU2006200353451 U CN U2006200353451U CN 200620035345 U CN200620035345 U CN 200620035345U CN 2935583 Y CN2935583 Y CN 2935583Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- capacity cell
- capacitor
- transmission system
- high voltage
- 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 - Lifetime
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 15
- 239000011810 insulating material Substances 0.000 claims description 11
- 238000002955 isolation Methods 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- QWUWMCYKGHVNAV-UHFFFAOYSA-N 1,2-dihydrostilbene Chemical compound C=1C=CC=CC=1CCC1=CC=CC=C1 QWUWMCYKGHVNAV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G17/00—Structural combinations of capacitors or other devices covered by at least two different main groups of this subclass with other electric elements, not covered by this subclass, e.g. RC combinations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/40—Structural combinations of fixed capacitors with other electric elements, the structure mainly consisting of a capacitor, e.g. RC combinations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
An improved AC/DC filter capacitor for the extra high voltage DC transmission system includes a plurality of parallel serial full-film media capacitor components in the shell of the main insulation shell, which are soaked in the soaker, and line terminals positioned at the top end of the capacitor. The internal fuse is positioned between two adjacent capacitor components, the adjacent two capacitor components are separated by a double-layer compound envelop, two insulating layers of each capacitor arranged between the two components. The main insulation of the capacitance to the shell is one envelop structure. High temperature sintered sleeve is positioned out of the line terminals. The internal fuse works correctly and reliably, which extends the service life of the capacitor; the fuse has a wide range of operating voltage and high residual voltage and the internal fuse has strong short-circuit proof discharge ability; operation of the fuse has little pollution to the oil, the compound envelop between elements and the main insulation one envelop improve the insulation performance, which is good for the flow production and improves the production efficiency; the high temperature sintered sleeve out of the line terminals is not only good for environmental protection but also helps anti-leakage and improves the product reliability.
Description
(1) technical field
The utility model relates to the AC and DC filtering capacitor, is specially a kind of AC and DC filtering capacitor that is used for the super high voltage direct current electricity transmission system.
(2) technical background
In the super high voltage direct current electricity transmission system,, need to use the ac filter capacitor for the harmonic component of filtering appts AC side; For the alternating current component of filtering appts DC side, need to use DC filter capacitors.Be at present the all-film dielectric structure capacitors of a plurality of elder generations and back string in the AC and DC filtering capacitor main insulation shell that uses in the super high voltage direct current electricity transmission system, in it fuse adopt in traditional open type fuse-wires structure or single in fuse-wires structure.The shortcoming of existing this type of AC and DC filter capacitor be the traditional anti-impulse electricity ability of interior fuse-wires structure a little less than, the voltage range of fuse action is limited; Influence the operational reliability and the useful life of capacitor, also reduced the coefficient of safety of capacitor operation.There is the problem that the incompatibility automatic production line is produced in isolation structure between its element in addition, the structure production efficiency of the double-contracting sealing structure of main insulation or takeup type encapsulation piece structure is lower, line terminal adopt by the silver brazing sleeve pipe, be unfavorable for environmental protection, the antiseep effect is not good yet.These problems all await solving.
(3) utility model content
The purpose of this utility model is a kind of improved AC and DC filtering capacitor that is used for the super high voltage direct current electricity transmission system of design, adopts concealed two and interior fuse, and adopts combined type to seal isolation structure between the element, improves the operational reliability of capacitor effectively.
The improved AC and DC filtering capacitor that is used for the super high voltage direct current electricity transmission system of the present utility model comprises in the main insulation shell being the stacked all-film dielectric structure capacity cell of a plurality of elder generations and back string, the line terminal that capacity cell a plurality of and string picks out is positioned at capacitor top, and the capacity cell in the shell is dipped in the impregnating agent.Its fuse places between two adjacent capacity cells, the combined type that comprises two-layer insulation that is isolated between two adjacent capacity cells is sealed isolation structure, be that each capacity cell is sealed the ground floor insulation, it is second layer insulation that two ground floors insulate between the capacity cell of sealing.Capacity cell is the single type encapsulating structure to the main insulation of shell, promptly the insulating material of an integral body is sealed the fuse that stacked a plurality of capacity cells constitute, insulating material as an integral body is centered around outside the fuse, the insulating material two ends of side is overlapping, the insulating material of top and bottom is turned back to cover and is pressed on the fuse upper and lower side, constitutes integral type and seal outside fuse.The line terminal on shell top has the high temperature sintering sleeve pipe outward.
The advantage that the utility model is used for the improved AC and DC filtering capacitor of super high voltage direct current electricity transmission system is: 1, be in the interior fuse action accuracy reliability height between the capacity cell, can excise fault element accurately and reliably, protect intact element, prolong the useful life of capacitor; The voltage range of fuse action is wide, is 0.5 U
N~ 3.0 U
N, be better than international standard 0.9 U
N~ 2.0 U
NRequirement; Interior fuse has the strong characteristics of anti-short circuit dischange ability, can pass through 3.5U
NDirect voltage under the short circuit dischange that carries out, be better than international standard 2.5U
NRequirement; The residual voltage height of fuse action, the residual voltage during its upper limit isolation experiment reaches 90%, is better than the requirement of international standard 70%; And the fuse action is little to the pollution of oil, thereby improves this capacitor reliability of operation, has prolonged useful life; 2, the combined type encapsulating structure between the capacity cell had both improved the isolation performance of capacity cell effectively, can adapt to the isolation of the capacity cell that the foil flanging projective structure is arranged again, and was beneficial to automatic production line production; 3, adopt integral type to seal to the main insulation of shell and both be convenient to automatic production line production, be convenient to vanning, improved production efficiency again, insulation property also further improve the requirement that meets international standards; 4, line terminal adopts the high temperature sintering sleeve pipe both to help environmental protection, helps antiseep again, has improved reliability of products.
(4) description of drawings
Fig. 1 is the capacitor overall structure schematic diagram of the utility model embodiment;
Fig. 2 is that the capacitor internal circuit of the utility model embodiment connects schematic diagram;
Fig. 3 is the capacity cell combined type encapsulating structure schematic diagram of the utility model embodiment;
Fig. 4 is the integral type encapsulating structure schematic diagram between interior capacity cell of the capacitor of the utility model embodiment and the shell main insulation.
(5) embodiment
Embodiment of improved AC and DC filtering capacitor that is used for the super high voltage direct current electricity transmission system of the present utility model as shown in Figure 1, comprise in the main insulation shell 2 being the stacked all-film dielectric structure capacity cell 5 of a plurality of elder generations and back string, the line terminal 1 that capacity cell 5 a plurality of and string picks out is positioned at capacitor top, capacity cell 5 in the shell 2 is dipped in the impregnating agent 4, and impregnating agent 4 is the benzyl toluene of excellent performance.Its fuse 6 places between two adjacent capacity cells 5, and as shown in Figure 2, each capacity cell 5 connects the fuse 6 of two parallel connections, and capacity cell 5 elder generations and back polyphone connect.As shown in Figure 3, the combined type that comprises two-layer insulation that is isolated between two adjacent capacity cells 5 is sealed isolation structure, be each capacity cell 5 outer ground floor insulation 7-1 that seal, each capacity cell 5 can and be sealed with two fuses 6 that it joins, and perhaps capacity cell 5 is sealed separately.Two adjacent having sealed are second layer insulation 7-2 between the ground floor insulation 7-1 capacity cell 5.As shown in Figure 4, the main insulation 3 of 5 pairs of shells 2 of capacity cell is the single type encapsulating structure, promptly the insulating material 3 of an integral body encloses outside the fuse that wraps in stacked a plurality of capacity cells 5 formations, insulating material two ends in the side is overlapping, the insulating material of top and bottom is turned back to cover and is pressed on the fuse upper and lower side, constitutes integral type and seal outside fuse.Outside the line terminal 1 on shell top the high temperature sintering sleeve pipe is arranged.
Claims (6)
1 one kinds of improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system, comprise in the main insulation shell (2) being the stacked all-film dielectric structure capacity cell (5) of a plurality of elder generations and back string, the line terminal (1) that capacity cell (5) a plurality of and string picks out is positioned at capacitor top, capacity cell (5) in the shell (2) is dipped in the impregnating agent (4), it is characterized in that:
Its fuse (6) places between adjacent two capacity cells (5), and each capacity cell (5) connects the fuse (6) of two parallel connections.
The 2 improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system according to claim 1 is characterized in that:
The combined type that comprises two-layer insulation that is isolated between adjacent two capacity cells (5) is sealed isolation structure, be that the outer ground floor of sealing of each capacity cell (5) insulate (7-1), two adjacent having sealed between ground floor insulation (7-1) capacity cell (5) are second layer insulation (7-2).
The 3 improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system according to claim 2 is characterized in that:
Each capacity cell (5) and seal with two fuses (6) that it joins, perhaps capacity cell (5) is sealed separately.
The 4 improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system according to claim 1 and 2 is characterized in that:
Capacity cell (5) is the single type encapsulating structure to the main insulation (3) of shell (2), and promptly the insulating material of an integral body is sealed the fuse that stacked a plurality of capacity cells constitute.
The 5 improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system according to claim 4 is characterized in that:
The insulating material of an integral body (3) encloses outside the fuse that wraps in stacked a plurality of capacity cells (5) formation, and is overlapping in the insulating material two ends of side, and the insulating material of top and bottom is turned back to cover and is pressed on the fuse upper and lower side, constitutes integral type and seal outside fuse.
The 6 improved AC and DC filtering capacitors that are used for the super high voltage direct current electricity transmission system according to claim 1 and 2 is characterized in that:
Outside the line terminal (1) on shell top the high temperature sintering sleeve pipe is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200353451U CN2935583Y (en) | 2006-08-14 | 2006-08-14 | AC, DC filter capacitance for ultra-high voltage DC transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200353451U CN2935583Y (en) | 2006-08-14 | 2006-08-14 | AC, DC filter capacitance for ultra-high voltage DC transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935583Y true CN2935583Y (en) | 2007-08-15 |
Family
ID=38352267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200353451U Expired - Lifetime CN2935583Y (en) | 2006-08-14 | 2006-08-14 | AC, DC filter capacitance for ultra-high voltage DC transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935583Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036499A1 (en) * | 2015-08-28 | 2017-03-09 | Siemens Aktiengesellschaft | Capacitor assembly, high-voltage direct current transmission |
| WO2019197060A1 (en) * | 2018-04-11 | 2019-10-17 | Eaton Intelligent Power Limited | Adaptor for a capacitor |
| CN114156085A (en) * | 2021-10-19 | 2022-03-08 | 安徽铜峰电子股份有限公司 | DC-Link capacitor with safety device and processing method thereof |
-
2006
- 2006-08-14 CN CNU2006200353451U patent/CN2935583Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036499A1 (en) * | 2015-08-28 | 2017-03-09 | Siemens Aktiengesellschaft | Capacitor assembly, high-voltage direct current transmission |
| US10204738B2 (en) | 2015-08-28 | 2019-02-12 | Siemens Aktiengesellschaft | Capacitor assembly, high-voltage direct-current transmission |
| WO2019197060A1 (en) * | 2018-04-11 | 2019-10-17 | Eaton Intelligent Power Limited | Adaptor for a capacitor |
| US10818434B2 (en) | 2018-04-11 | 2020-10-27 | Eaton Intelligent Power Limited | Adaptor for a capacitor |
| CN111971768A (en) * | 2018-04-11 | 2020-11-20 | 伊顿智能动力有限公司 | Adapter for capacitor |
| CN111971768B (en) * | 2018-04-11 | 2022-04-29 | 伊顿智能动力有限公司 | Adapter for capacitor |
| CN114156085A (en) * | 2021-10-19 | 2022-03-08 | 安徽铜峰电子股份有限公司 | DC-Link capacitor with safety device and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070815 |
|
| EXPY | Termination of patent right or utility model |