CN204578078U - Coupling capacitance apparatus - Google Patents
Coupling capacitance apparatus Download PDFInfo
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- CN204578078U CN204578078U CN201520168596.6U CN201520168596U CN204578078U CN 204578078 U CN204578078 U CN 204578078U CN 201520168596 U CN201520168596 U CN 201520168596U CN 204578078 U CN204578078 U CN 204578078U
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- 230000008878 coupling Effects 0.000 title claims abstract description 21
- 238000010168 coupling process Methods 0.000 title claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 51
- 239000012212 insulator Substances 0.000 claims abstract description 31
- 230000003373 anti-fouling effect Effects 0.000 claims description 6
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
A kind of coupling capacitance apparatus disclosed in the utility model, comprise support, Capacitor banks, post insulator and grading ring, it is characterized in that: Capacitor banks and post insulator splice in aggregates, grading ring is separately positioned on the top of Capacitor banks, bottom and flange connections, be respectively equipped with end of incoming cables and leading-out terminal at the upper wiring board of Capacitor banks, lower terminal block place, the lower flange of post insulator is earth terminal.The problem that coupling capacitance apparatus of the present utility model and the complete use of current limiting reactor exceed standard for solving large capacity transmission system short-circuit electric current, reduces the cost of investment of electric power enterprise greatly; Property safe and reliable to operation is high, and cost performance is high, and voltage endurance capability is strong, and anti-seismic performance is good, and radio interference voltage is low, and high voltage, bulky capacitor, volume are little, and multicolumn multilayer coordinates feature accurately.
Description
Technical field
The present invention relates to power capacitor, being specially a kind of and the complete use of current limiting reactor, for solving the coupling capacitance apparatus that grid short circuit electric current exceeds standard.
Background technology
Along with the development of electric power system, Power System Interconnection, electromagnetic looped network run, nearly load center source continues to increase, unit and generator capacity growing etc., the short circuit current problem of electric power system voltage Grid at different levels is on the rise.This just requires that various transmitting and transforming equipment in electrical network (all in the switchgears such as circuit breaker, transformer, bus, supporting insulator and even ground network and framework etc.) must meet short-circuit current level and improve the more exacting terms brought.Be limited to current technical merit, carft of construction etc., be difficult to the circuit breaker developing larger rupturing capacity further, in other words, the development speed of current circuit breaker has not caught up with the growth rate of system short circuit capacity.Therefore, how to take effective short-circuit current limiting measure and the corresponding fault current limiter of research and development, become industry scientific and technical personnel and paid close attention to and one of the focus tried to explore.
Current limiting reactor of connecting in transmission line is the way suppressing of short circuit current effective and feasible, but installing another problem that current limiting reactor brings additional is exactly that reactor can cause transient recovery voltage of circuit breaker (TRV) steepness to raise, after TRV steepness raises, can breaking capacity of breaker be caused conversely to decline, even may cause when situation is serious normally can not cut-offfing fault current.Therefore employing measure is needed to reduce TRV steepness.
Reduce TRV steepness, by reducing the oscillation circuit natural frequency of vibration way realization of cut-offfing moment bus bar side residual voltage or going here and there anti-participation after reducing blow-out.By analysis, cut-off moment bus bar side residual voltage and be difficult to reduce, measure of need finding reduces to go here and there the oscillation circuit natural frequency of vibration of anti-participation after blow-out.
Summary of the invention
The object of the invention is the problem exceeded standard for solving grid short circuit electric current, and design coupling capacitance apparatus that is a kind of and the complete use of current limiting reactor, this device can reduce circuit breaker and cut-off the oscillation circuit natural frequency of vibration that current limiting reactor participates in after moment blow-out, thus reaches the object reducing transient recovery voltage of circuit breaker (TRV) steepness.
The technical scheme realizing the object of the invention is:
A kind of coupling capacitance apparatus, comprise support, Capacitor banks, post insulator and grading ring, unlike the prior art: Capacitor banks and post insulator splice in aggregates, grading ring is separately positioned on the top of Capacitor banks, bottom and flange connections, be respectively equipped with end of incoming cables and leading-out terminal at the upper wiring board of Capacitor banks, lower terminal block place, the lower flange of post insulator is earth terminal.
Described Capacitor banks is composed in parallel by 2-10 post capacitor, and every post capacitor is in series by 2-5 economize on electricity container unit, to meet creep distance, insulation and requirement of mechanical strength.
Described capacitor unit comprises the fuse, expander and the lid that are formed by connecting by sleeve, element, is filled with insulating oil in capacitor unit.Sleeve is porcelain or composite, adopts anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure.
The top of described Capacitor banks and bottom connect into an entirety by Y type support and post insulator, but avoid the formation of closed circuit on electrical property, prevent circulation from causing heating while ensureing mechanical strength.
Described post insulator post becomes circumferential to arrange with capacitor column framework according to concrete quantity, specifically can be divided into interior, in, outer or internal and external circumference arranges.
Same post insulator post circumferentially or the capacitor column line of centres are formed as equilateral triangle or square or regular pentagon or positive n limit shape.
Described post insulator is composed in parallel by 2 ~ 20 posts, every column insulator is composed in series by 2 ~ 5 joint elements, post insulator is porcelain or composite, adopt anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure, to meet creep distance, insulation and requirement of mechanical strength.
Described grading ring is annular segmentation composition, and grading ring is in the same plane with capacitor column framework respectively, and is interconnected; The inside radius of grading ring is greater than framework external diameter, has at least three intercell connectors to be connected between grading ring with framework.
Described grading ring respectively establishes 1 ~ 2 at the top of Capacitor banks, bottom and flange connections, to reduce the generation of corona.
Coupling capacitance apparatus of the present invention is used for the electric power system of 220kV and above, and rated capacity is 20nF ~ 400nF.
Coupling capacitance apparatus of the present invention has following advantage: the problem 1, exceeded standard for solving large capacity transmission system short-circuit electric current with the complete use of current limiting reactor, greatly reduces the cost of investment of electric power enterprise; 2, property safe and reliable to operation is high, and cost performance is high; 3, voltage endurance capability is strong; 4, anti-seismic performance is good; 5, radio interference voltage is low; 6, high voltage, bulky capacitor, volume are little; 7, multicolumn multilayer coordinates feature accurately.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment of this coupling capacitance apparatus;
Fig. 2 is the vertical view of the embodiment of this coupling capacitance apparatus;
Fig. 3 is capacitor unit structural representation in Fig. 1;
In figure: 1, grading ring; 2, Sign Board; 3, Capacitor banks; 4, support; 5, post insulator; 6, end of incoming cables (or leading-out terminal); 7, leading-out terminal (or end of incoming cables); 8, intercell connector; 9, single-column capacitor.10, capacitor unit, 10-1, lid, 10-2, expander, 10-3, fuse, 10-4, sleeve.
Embodiment
As shown in Fig. 1 ~ 2, coupling capacitance apparatus is by grading ring 1, and Sign Board 2, Capacitor banks 3, support 4, post insulator 5, end of incoming cables (or leading-out terminal) 6, leading-out terminal (or end of incoming cables) 7, intercell connector 8 is formed.Splice into an entirety with the top of post insulator 5 by Y type support 4 bottom Capacitor banks 3, electrical property avoids the formation of closed circuit, while ensureing mechanical strength, prevent circulation from causing heating.Grading ring 1 respectively arranges 1-2 at the top of Capacitor banks 3, bottom and flange connections, to reduce the generation of corona, end of incoming cables (or leading-out terminal) 6 is the terminal block on Capacitor banks top, leading-out terminal (or end of incoming cables) 7 is the terminal block of Capacitor banks bottom, and earth terminal is the lower flange of post insulator 5.
As shown in Figure 3, Capacitor banks 3 is composed in parallel by 2 ~ 10 post capacitors 9, every post capacitor 9 is composed in series by 2 ~ 5 economize on electricity container units 10, capacitor unit 10 comprises fuse 10-3, the expander 10-2 and lid 10-1 that are formed by connecting by sleeve 10-4, element, be filled with insulating oil in capacitor unit 10, make creep distance, insulation and mechanical strength engineering demands.
Post insulator 5 is composed in parallel by 2 ~ 20 post single-column post insulators, and every column insulator is composed in series by 2 ~ 5 joint elements, makes creep distance, insulation and mechanical strength engineering demands.Post insulator 5 and capacitor 9 framework according to concrete quantity by interior, in, outer or internal and external circumference arranges.Same post insulator 5 circumferentially or capacitor 9 line of centres are formed as equilateral triangle or square or regular pentagon or positive n limit shape.
Grading ring 1 is annular segmentation composition, and grading ring 1 is in the same plane and be interconnected with the framework of this layer.The inside radius of grading ring 1 is greater than framework external diameter, and grading ring 1 is connected with there being at least three intercell connectors 8 between framework.
Capacitor unit 10 sleeve material can be porcelain or compound, adopts anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure.Post insulator 5 material can be porcelain or compound, adopts anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure.
Above-described embodiment, be only the specific case further described object of the present invention, technical scheme and beneficial effect, the present invention is not defined in this.All make within scope of disclosure of the present invention any amendment, equivalent replacement, improvement etc., be all included within protection scope of the present invention.
Claims (8)
1. a coupling capacitance apparatus, comprise support, Capacitor banks, post insulator and grading ring, it is characterized in that: Capacitor banks and post insulator splice in aggregates, grading ring is separately positioned on the top of Capacitor banks, bottom and flange connections, be respectively equipped with end of incoming cables and leading-out terminal at the upper wiring board of Capacitor banks, lower terminal block place, the lower flange of post insulator is earth terminal.
2. coupling capacitance apparatus according to claim 1, is characterized in that: described Capacitor banks is composed in parallel by 2-10 post capacitor, and every post capacitor is in series by 2-5 economize on electricity container unit.
3. coupling capacitance apparatus according to claim 2, is characterized in that: described capacitor unit comprises the fuse, expander and the lid that are formed by connecting by sleeve, element, is filled with insulating oil in capacitor unit; Sleeve is porcelain or composite, adopts anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure.
4. coupling capacitance apparatus according to claim 1, it is characterized in that: described post insulator is composed in parallel by 2 ~ 20 posts, every column insulator is composed in series by 2 ~ 5 joint elements, post insulator is porcelain or composite, adopt anti-fouling type or the large umbellule of large distance, or isometrical or waney dark rib type beveled structure.
5. coupling capacitance apparatus according to claim 1, it is characterized in that: described post insulator post and capacitor column framework according to concrete quantity circumferentially shape arrange, same post insulator post circumferentially or the capacitor column line of centres are formed as equilateral triangle or square or regular pentagon or positive n limit shape.
6. coupling capacitance apparatus according to claim 1, is characterized in that: described grading ring is annular segmentation composition, and grading ring is in the same plane with capacitor column framework respectively, and is interconnected; The inside radius of grading ring is greater than framework external diameter, has at least three intercell connectors to be connected between grading ring with framework.
7. coupling capacitance apparatus according to claim 1, is characterized in that: described grading ring respectively establishes 1 ~ 2 at the top of Capacitor banks, bottom and flange connections.
8. coupling capacitance apparatus according to claim 1, is characterized in that: this coupling capacitance apparatus is used for the electric power system of 220kV and above, and rated capacity is 20nF ~ 400nF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168596.6U CN204578078U (en) | 2015-03-25 | 2015-03-25 | Coupling capacitance apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168596.6U CN204578078U (en) | 2015-03-25 | 2015-03-25 | Coupling capacitance apparatus |
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| CN204578078U true CN204578078U (en) | 2015-08-19 |
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| CN201520168596.6U Active CN204578078U (en) | 2015-03-25 | 2015-03-25 | Coupling capacitance apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753051A (en) * | 2015-03-25 | 2015-07-01 | 桂林电力电容器有限责任公司 | Coupling capacitor device |
| CN108288539A (en) * | 2018-02-12 | 2018-07-17 | 桂林电力电容器有限责任公司 | A kind of column support type high-voltage alternating filter condenser |
| CN109494075A (en) * | 2018-12-20 | 2019-03-19 | 桂林电力电容器有限责任公司 | A kind of high-voltage capacitor device inhibiting TRV |
-
2015
- 2015-03-25 CN CN201520168596.6U patent/CN204578078U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753051A (en) * | 2015-03-25 | 2015-07-01 | 桂林电力电容器有限责任公司 | Coupling capacitor device |
| CN108288539A (en) * | 2018-02-12 | 2018-07-17 | 桂林电力电容器有限责任公司 | A kind of column support type high-voltage alternating filter condenser |
| CN109494075A (en) * | 2018-12-20 | 2019-03-19 | 桂林电力电容器有限责任公司 | A kind of high-voltage capacitor device inhibiting TRV |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Mo Huaming Inventor after: Mo Guoping Inventor after: Huang Ying Inventor after: Qiu Wei Inventor after: Li Xiaoyan Inventor after: Xiao Xiaohong Inventor after: Wang Zengwen Inventor after: Tan Yanmin Inventor after: Song Shoulong Inventor after: Gu Fengbiao Inventor after: Li Bichun Inventor after: Tang Wangxian Inventor before: Mo Huaming Inventor before: Mo Guoping Inventor before: Li Xiaoyan Inventor before: Xiao Xiaohong Inventor before: Wang Zengwen Inventor before: Tan Yanmin Inventor before: Song Shouhua Inventor before: Gu Fengbiao Inventor before: Li Bichun Inventor before: Tang Wangxian |
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| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160113 Address after: Huang Tong Road Qixing District, Guilin city 541004 No. 28 the Guangxi Zhuang Autonomous Region Patentee after: GUILIN POWER CAPACITOR Co.,Ltd. Patentee after: China South Power Grid International Co.,Ltd. Address before: Huang Tong Road Qixing District, Guilin city 541004 No. 28 the Guangxi Zhuang Autonomous Region Patentee before: GUILIN POWER CAPACITOR Co.,Ltd. |