CN203910669U - 252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker - Google Patents
252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker Download PDFInfo
- Publication number
- CN203910669U CN203910669U CN201420357543.4U CN201420357543U CN203910669U CN 203910669 U CN203910669 U CN 203910669U CN 201420357543 U CN201420357543 U CN 201420357543U CN 203910669 U CN203910669 U CN 203910669U
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- CN
- China
- Prior art keywords
- circuit breaker
- porcelain
- contact
- contact system
- outdoor high
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- 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
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 47
- 239000003595 mist Substances 0.000 claims description 23
- 239000012212 insulator Substances 0.000 claims description 17
- 230000003068 static effect Effects 0.000 claims description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000003463 adsorbent Substances 0.000 claims description 3
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 229910018503 SF6 Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
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- Circuit Breakers (AREA)
Abstract
The utility model discloses a 252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker which adopts a split-pole single-fracture structure. The circuit breaker comprises three single poles. Each single pole comprises a single pole circuit breaker, a mechanism box, a busbar control cabinet and a support. The mechanism box and the busbar control cabinet are installed on two sides of the support separately. The single pole circuit breaker is arranged above the support. The single pole circuit breaker comprises an arc extinguish chamber porcelain shell, a fixed contact system, a moving contact system, a supporting pillar porcelain shell and a transmission pull rod. The arc extinguish chamber is filled with SF6 and CF4 mixed gas used as insulating medium. According to the utility model, advantages of low operation noise, high mechanical reliability, single-pole operation, three-phase electrical linkage, simple structure and convenient installation can be realized. The SF6 and CF4 mixed gas is used as the insulating medium, so the 50kA short-circuit breaking current can be broken in the low-temperature environment (-45-+40 DEG C) condition. According to the utility model, only related connection and gas supplement need to be performed in the field installation, and advantages of convenient debugging process and less operation and maintenance workload can be realized.
Description
Technical field
The utility model belongs to field of circuit breakers, relates to a kind of high voltage electric power equip ment and circuit device, and relating in particular to is a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker.
Background technology
The generation of LW25-252 outdoor high-voltage AC porcelain knob type sulfur hexafluoride breaker, though improved the properties of product of 252kV electric pressure circuit breaker, but the 252kV circuit breaker of extremely frigid zones is still taking pure SF6 gas as dielectric, and the product that installs insulation belt and reduction breaking capacity of breaker additional is main.At present, temporarily without the ripe 252kV of resistance to thermal insulation type outdoor AC porcelain knob mist circuit breaker, so be necessary to provide a kind of porcelain knob mist circuit breaker that meets large capacity drop-out current requirement under low temperature environment.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, and a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker is provided, and it can meet the requirement of large capacity drop-out current under low temperature environment.
For achieving the above object, the utility model adopts following technical scheme: adopt split pole single break structure, comprise three one poles, each one pole comprises single-pole circuit breaker, mechanism case, convergence control cabinet and support; Described mechanism case and convergence control cabinet are arranged on respectively support both sides, and described single-pole circuit breaker is arranged on support top;
Described single-pole circuit breaker comprises interrupting porcelain insulator, static contact system, movable contact system, strut porcelain bushing and shackle rod, interrupting porcelain insulator is arranged on strut porcelain bushing upper end, static contact system and movable contact system are all arranged on interrupting porcelain insulator inside, static contact system top is provided with adsorbent, movable contact system is connected with shackle rod, interrupting porcelain insulator inside is arc control device, is filled with the SF as dielectric in arc control device
6and CF
4mist.
Described strut porcelain bushing is binodal or single-unit insulator.
In described strut porcelain bushing, be also filled with SF
6with CF
4mist.
Described static contact system comprises fixed contact pedestal, is provided with fixed contact on fixed contact pedestal, and the end of fixed contact is provided with arcing contact.
Described moving contact, fixed contact all adopt Self-help contact terminal, and arcing contact adopts integral sintered copper tungsten contact.
Described movable contact system comprises supporter, spout, moving contact, air cylinder, middle fingertip, pull bar, piston and piston rod; Fingertip in the middle of described supporter front end outer setting, supporter front end inside arranges piston; Air cylinder front end is provided with cylinder supporter, on cylinder supporter, moving contact is set, and in cylinder supporter, spout is set, and arcing contact is set in spout; Whole air cylinder is set between middle fingertip and piston, and is connected with the piston rod one end through internal piston, and the piston rod other end is connected with pull bar.
Spring operating mechanism and outer connecting lever are installed in described mechanism case, and spring operating mechanism is connected with the interior connecting lever being arranged on shackle rod by outer connecting lever.
Compared with prior art, the beneficial effect the utlity model has:
The utility model improves arc control device, adopts SF
6, CF
4mist, as dielectric, can cut-off 50kA operation-current under low temperature environment (45～+ 40) DEG C condition.In addition, the utility model is simple in structure, and on-the-spot installation only need to be carried out about connecting and make-up gas, and debug process is convenient, and operation maintenance workload is few, easy for installation.
Further, the utility model adopts matched with spring operating mechanism to be applicable to buffer and certain force value spring that low temperature environment uses, makes operation noise low, and Mechanical Reliability is high, can monopolar operation, and also three-phase is electric-linked, simple in structure, easy for installation.
Further, the utlity model has the connecting-disconnecting function of 50kA under low temperature environment, when separating brake, spring operating mechanism drives movable contact system to move downward by pull bar, arcing contact departs from before spout, rely on the cooperation blockage effect of arcing contact and spout, the blockage effect of electric arc after arcing contact disengaging spout, utilize the thermal expansion of electric arc to gas simultaneously, make the gas pressure in upstream and air cylinder continue to raise, thereby make arc control device obtain high gas eruption pressure, so both reduced the requirement to operating work, improved again the arc-rupturing capacity of circuit breaker.
Further, in the utility model, can determine suitable nozzle configuration according to the drop-out current electric arc feature of mist, accelerate temperature and energy exchange between arc column, the ablation that has improved arc-rupturing capacity and alleviated nock.
Brief description of the drawings
Fig. 1 is the utility model outdoor high-voltage AC porcelain knob type mist breaker structure schematic diagram;
Fig. 2 is single-pole circuit breaker structural representation of the present utility model;
Fig. 3 is arc control device static contact system structural representation of the present utility model;
Fig. 4 is movable contact system structural representation of the present utility model;
Wherein: 1 is convergence control cabinet; 2 is support; 3 is mechanism case; 4 is spring operating mechanism; 5 is single-pole circuit breaker; 6 is interrupting porcelain insulator; 7 is static contact system; 8 is movable contact system; 9 is strut porcelain bushing; 10 is shackle rod; 11 is fixed contact pedestal; 12 is fixed contact; 13 is arcing contact; 14 is spout; 15 is moving contact; 16 is air cylinder; 17 is middle fingertip; 18 is supporter; 19 is pull bar.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Referring to Fig. 1, a kind of outdoor high-voltage AC porcelain knob type mist circuit breaker, adopts split pole single break structure, comprises three one poles, and each one pole comprises single-pole circuit breaker 5, mechanism case 3, convergence control cabinet 1 and support 2; Described mechanism case 3 and convergence control cabinet 1 are arranged on respectively support 2 both sides, and described single-pole circuit breaker 5 is arranged on support top.Referring to Fig. 2, described single-pole circuit breaker 5 comprises interrupting porcelain insulator 6, static contact system 7, movable contact system 8, strut porcelain bushing 9 and shackle rod 10, and wherein, strut porcelain bushing 9 is binodal or single-unit insulator; Interrupting porcelain insulator 6 is arranged on strut porcelain bushing 9 upper ends, static contact system 7 and movable contact system 8 are all arranged on interrupting porcelain insulator 6 inside, static contact system 7 tops are provided with adsorbent, movable contact system 8 is connected with shackle rod 10, interrupting porcelain insulator 6 inside are arc control device, in arc control device and strut porcelain bushing 9, are filled with the SF as dielectric
6and CF
4mist.
Referring to Fig. 3, described static contact system comprises fixed contact pedestal 11, is provided with fixed contact 12 on fixed contact pedestal 11, and the end of fixed contact is provided with arcing contact 13.
Referring to Fig. 4, described movable contact system comprises supporter 18, spout 14, moving contact 15, air cylinder 16, middle fingertip 17, pull bar 19, piston and piston rod; Fingertip 17 in the middle of described supporter 18 front end outer setting, supporter 18 front end inside arrange piston; Air cylinder 16 front ends are provided with cylinder supporter, and moving contact 15 is installed on cylinder supporter, and spout 14 is set in cylinder supporter, and arcing contact is arranged in spout 14; Whole air cylinder 16 is set between middle fingertip 17 and piston, and is connected with the piston rod one end through internal piston, and the piston rod other end is connected with pull bar 19.Described moving contact 15, fixed contact 12 all adopt Self-help contact terminal, and arcing contact 13 adopts integral sintered copper tungsten contact.
Spring operating mechanism 4 and outer connecting lever are installed in described mechanism case 3, spring operating mechanism 4 is connected with the interior connecting lever being arranged on shackle rod 10 by outer connecting lever, the joint of interior connecting lever drives air cylinder 16 downwards with certain speed rectilinear motion by shackle rod 10, pull bar 19, thereby realizes movable contact system and static contact system divides closing operation.
The course of work of the present utility model and principle: the connecting-disconnecting function that the utlity model has 50kA, when separating brake, spring operating mechanism is connected with interior connecting lever by outer connecting lever, and drive it to rotatablely move, the joint of interior connecting lever drives the air cylinder 16 of movable contact system 8 downwards with certain speed rectilinear motion by shackle rod 10, pull bar 19, thereby realizes movable contact system and static contact system divides closing operation; The utility model relies on arcing contact 13 to depart from before spout 14, the cooperation blockage effect of arcing contact 13 and spout 14, arcing contact 13 departs from the blockage effect of spout 14 rear electric arcs, utilize the thermal expansion of electric arc to gas simultaneously, make the gas pressure in upstream and air cylinder 16 continue to raise, blow out electric arc thereby make arc control device obtain high gas eruption pressure, so both reduced the requirement to operating work, improved again the arc-rupturing capacity of circuit breaker.
In described interrupting porcelain insulator 6 and strut porcelain bushing 9, be filled with SF
6, CF
4mist.
This mist circuit breaker passes through prototype tests 5～August in 2011 at Xian High voltage Apparatus Research Institute.Product testing program and parameter all meet the test requirements document of IEC62271-100 " ac hv breaker " and GB/T1984 " high-voltage AC breaker ", and successfully obtain test certificate.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model; can not assert that embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by submitted to claims.
Claims (7)
1. a 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker, it is characterized in that, adopt split pole single break structure, comprise three one poles, each one pole comprises single-pole circuit breaker (5), mechanism case (3), convergence control cabinet (1) and support (2); Described mechanism case (3) and convergence control cabinet (1) are arranged on respectively support (2) both sides, and described single-pole circuit breaker (5) is arranged on support top;
Described single-pole circuit breaker (5) comprises interrupting porcelain insulator (6), static contact system (7), movable contact system (8), strut porcelain bushing (9) and shackle rod (10), interrupting porcelain insulator (6) is arranged on strut porcelain bushing (9) upper end, static contact system (7) and movable contact system (8) are all arranged on interrupting porcelain insulator (6) inside, static contact system (7) top is provided with adsorbent, movable contact system (8) is connected with shackle rod (10), interrupting porcelain insulator (6) inside is arc control device, in arc control device, be filled with the SF as dielectric
6and CF
4mist.
2. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 1, is characterized in that, described strut porcelain bushing (9) is binodal or single-unit insulator.
3. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 1 and 2, is characterized in that, described strut porcelain bushing is also filled with SF in (9)
6with CF
4mist.
4. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 1 and 2, it is characterized in that, described static contact system (7) comprises fixed contact pedestal (11), on fixed contact pedestal (11), be provided with fixed contact (12), the end of fixed contact (12) is provided with arcing contact (13).
5. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 4, it is characterized in that, described moving contact (15), fixed contact (12) all adopt Self-help contact terminal, and arcing contact (13) adopts integral sintered copper tungsten contact.
6. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 1 and 2, it is characterized in that, described movable contact system (8) comprises supporter (18), spout (14), moving contact (15), air cylinder (16), middle fingertip (17), pull bar (19), piston and piston rod; Fingertip (17) in the middle of described supporter (18) front end outer setting, supporter (18) front end inside arranges piston; Air cylinder (16) front end is provided with cylinder supporter, and moving contact (15) is set on cylinder supporter, and spout (14) is set in cylinder supporter, and spout arranges arcing contact in (14); Whole air cylinder (16) is set between middle fingertip (17) and piston, and is connected with the piston rod one end through internal piston, and the piston rod other end is connected with pull bar (19).
7. a kind of 252kV outdoor high-voltage AC porcelain knob type mist circuit breaker according to claim 1 and 2, it is characterized in that, spring operating mechanism (4) and outer connecting lever are installed in described mechanism case (3), and spring operating mechanism (4) is connected with the interior connecting lever being arranged on shackle rod (10) by outer connecting lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357543.4U CN203910669U (en) | 2014-06-30 | 2014-06-30 | 252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420357543.4U CN203910669U (en) | 2014-06-30 | 2014-06-30 | 252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910669U true CN203910669U (en) | 2014-10-29 |
Family
ID=51784924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420357543.4U Expired - Lifetime CN203910669U (en) | 2014-06-30 | 2014-06-30 | 252kV outdoor high-voltage alternating-current porcelain column type mixed gas circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910669U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390329A (en) * | 2015-11-19 | 2016-03-09 | 平高集团有限公司 | Column type circuit breaker housing and column type circuit breaker using column type circuit breaker housing |
-
2014
- 2014-06-30 CN CN201420357543.4U patent/CN203910669U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390329A (en) * | 2015-11-19 | 2016-03-09 | 平高集团有限公司 | Column type circuit breaker housing and column type circuit breaker using column type circuit breaker housing |
| CN105390329B (en) * | 2015-11-19 | 2018-03-23 | 平高集团有限公司 | A kind of column type circuit breaker housing and the column type circuit breaker using the Shell of circuit breaker |
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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: 20141029 |