CN203812796U - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN203812796U CN203812796U CN201420152802.XU CN201420152802U CN203812796U CN 203812796 U CN203812796 U CN 203812796U CN 201420152802 U CN201420152802 U CN 201420152802U CN 203812796 U CN203812796 U CN 203812796U
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- Prior art keywords
- pole body
- breaking
- breaker
- energy storage
- vacuum circuit
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Abstract
The utility model discloses a vacuum circuit breaker. Each lower wire base is connected with a current transformer, each current transformer is connected with a pole body, each lower wire terminal is arranged on the pole body, each pole body is arranged on a box, two linkage shafts are arranged on two side surfaces of the box, a breaking and closing operation handle, an energy storage signboard, an energy storage operation handle and a breaking and closing signboard are all arranged on the front side surface of the box; four suspension rings are symmetrically arranged on the upper side surface of the box, and a grounding nut is arranged on the lower right corner of the box. The breaking and closing operation handle, the energy storage signboard, the energy storage operation handle and the breaking and closing signboard which are employed by the vacuum circuit breaker can monitor the working conditions of the breaker and can operate the breaker more easily, the maloperation phenomenon does not appear, ineffective operation cases due to abrasion for a long time are not liable to appear, and the service life of the vacuum circuit breaker is longer than that of a breaker of another kind.
Description
Technical field
The utility model relates to breaker technical field, is specially a kind of vacuum circuit-breaker.
Background technology
Circuit breaker is generally two kinds at present, and one is oil-minimum breaker: be generally made up of parts such as arc extinguishing unit, framework, control cabinet and supporting legs.The arc-extinguishing medium of arc extinguishing unit is transformer oil, and it is that arc-rupturing capacity is poor, easy to leak oil, contaminated environment by oil gas arc blow-out or cold oil arc blow-out.Framework is to be connected together three, realized the breaking-closing operating of circuit breaker by the hydraulic mechanism actuating three-phase ganged in control cabinet, the general oil pressure of its hydraulic mechanism is between 24Mpa to 30Mpa, and pressure is higher, sealing difficulty is larger, oil seepage phenomena is serious, contaminated environment, and switch need overhaul every year, expense is high, electric life is generally at 6-8 time, and mechanical endurance 2000 times, its technical parameter is lower.Another kind is SF6 circuit breaker: structure and oil-minimum breaker are basic identical, and the arc-extinguishing medium of arc extinguishing unit is SF6 gas, and in the time that circuit breaker cut-offs, dynamic and static arcing contact produces electric arc, and now SF6 sprays arc extinction from spout with ultrasonic speed.A kind of hypertoxic fluoride owing to decomposing in the presence of metal, steam and moisture under SF6 gas high temperature, can produce SOF2, contaminated environment.This circuit breaker institute fitting mechanism has hydraulic mechanism, spring mechanism, electric life is generally 16-20 time, be 2000-6000 mechanical endurance, prior art is on to the control of circuit breaker, also there is some problems, in the process of closing a floodgate, closing lock and energy storage, there will be standing state not clear, the situation that conversion operations process is invalid, for this reason, we propose a kind of vacuum circuit-breaker.
Utility model content
The purpose of this utility model is to provide a kind of vacuum circuit-breaker, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of vacuum circuit-breaker, comprise the seat that rolls off the production line, current transformer, casing, chain axle, breaking-closing operating handle, energy storage Sign Board, suspension ring, stored energy operation handle, deciliter Sign Board, grounding nut, nameplate, pole body and lower place line terminals, a described summation current transformer that rolls off the production line connects, described current transformer is connected with pole body, described lower place line terminals is positioned at the top of pole body, and described pole body is positioned on casing, described chain axle has two two sides that are positioned at casing, and described breaking-closing operating handle, energy storage Sign Board, stored energy operation handle and deciliter Sign Board are all positioned on the leading flank of casing, described suspension ring have four symmetries to be positioned on casing upper side, and described grounding nut is positioned on the lower right corner of casing, pole body comprises outlet column, vacuum interrupter, upper supporting column insulating cylinder, conductive clip, lower supporting rod insulating cylinder, touch spring, connecting rod, radiation fins, body is flexible coupling, flange and insulated tension pole, described upper outlet column is positioned at the top of vacuum interrupter, described upper supporting column insulating cylinder is wrapped in vacuum extinction outdoor, described conductive clip, touch spring is connected from top to bottom successively with connecting rod, described lower supporting rod insulating cylinder is wrapped in the outside of conductive clip and touch spring, described radiation fins is wrapped in the outside of upper supporting column insulating cylinder, the described body that is flexible coupling is positioned at the centre of radiation fins and insulated tension pole, described flange is connected to the side of the body that is flexible coupling.
Preferably, described pole body has three, and middle pole body no current instrument transformer structure.
Preferably, described breaking-closing operating handle is connected with energy storage Sign Board and a deciliter Sign Board by travelling gear respectively with stored energy operation handle.
Preferably, described breaking-closing operating handle is all connected with pole body by power line with stored energy operation handle.
Preferably, described in, be flexible coupling on body and leave two connecting holes.
Operation principle: man-operating mechanism operating principle: closing operation, first pull stored energy operation handle to carry out energy storage, the operational torque of executing changes from small to big, it is instantaneous in switching-in spring is crossed, switching-in spring releases energy, and impels energy-storage system to be rotated counterclockwise and drives connecting lever to rotate, and drives power transmission shaft to make breaker closing, separating brake connecting lever fastens separating brake semiaxis simultaneously, makes circuit breaker in "on" position; Mechanism is under "on" position, and cam and rotary axle box depart from, and mechanism can not close a floodgate again.Sub-switching operation, after breaker closing, pull separating brake handle or in the time that line current exceedes the set point of inrush current prevention device overcurrent coil driven, all make separating brake semiaxis rotate, separating brake connecting lever is triped, drive link makes breaker open operation under the drive of tripping spring.Stored energy operation: draw stored energy operation handle, or energy storage motor rotate, under the drive of travelling gear, make cam rotate, switching-in spring is elongated gradually, in spring is crossed after, cam is kept no longer rotating by keeper, circuit breaker in prepare "on" position; Cam and power transmission shaft depart from simultaneously, make mechanism's energy storage again.Motor mechanism operating principle: electric brake operation, after energy storage, pulls breaking-closing operating handle or apply voltage to closing coil, the semiaxis that makes to close a floodgate rotates, and combined floodgate connecting lever and combined floodgate semiaxis are triped, and switching-in spring releases energy, drive power transmission shaft to make breaker closing, tripping spring is by energy storage simultaneously.Mechanism, under "on" position, then carries out stored energy operation, and switching-in spring is elongated again, spring cross in after, combined floodgate semiaxis is fastened by interlock, avoids mechanism's false switching.At the energy storage state that closes a floodgate, mechanism, in reclosing state, can realize the operation of " O-0.3S-CO " single shot reclosing.Sub-switching operation, after breaker closing, pull breaking-closing operating handle or to switching winding apply voltage or in the time that line current exceedes the set point of inrush current prevention device overcurrent coil driven, all make separating brake semiaxis rotate, separating brake connecting lever is triped, and drive link makes breaker open operation under the drive of tripping spring.
Compared with prior art, the beneficial effects of the utility model are: this vacuum circuit-breaker, the breaking-closing operating handle, energy storage Sign Board, stored energy operation handle and deciliter Sign Board that adopt can not only can well be monitored the operating state of circuit breaker, also be more prone to operating it, there will not be misoperation phenomenon, and be not easy to occur the invalid situation of operation after long-time wearing and tearing, and it is also than long many in the useful life of the circuit breaker of other kind.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the cutaway view of the utility model pole body;
Fig. 3 is the utility model pole body internal structure schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1-3, in the utility model embodiment, a kind of vacuum circuit-breaker, comprise the seat 1 that rolls off the production line, current transformer 2, casing 3, chain axle 4, breaking-closing operating handle 5, energy storage Sign Board 6, suspension ring 7, stored energy operation handle 8, deciliter Sign Board 9, grounding nut 10, nameplate 11, pole body 12 and lower place line terminals 13, described seat 1 summation current transformer 2 that rolls off the production line connects, described current transformer 2 is connected with pole body 12, described lower place line terminals 13 is positioned at the top of pole body 12, described pole body 12 is positioned on casing 3, described pole body 12 has three, and middle pole body 12 no current instrument transformer 2 structures, described chain axle 4 has two two sides that are positioned at casing 3, described breaking-closing operating handle 5, energy storage Sign Board 6, stored energy operation handle 8 and deciliter Sign Board 9 are all positioned on the leading flank of casing 3, described breaking-closing operating handle 5 is all connected with pole body 12 by power line with stored energy operation handle 8, and described breaking-closing operating handle 5 is connected with energy storage Sign Board 6 and deciliter Sign Board 9 by travelling gear respectively with stored energy operation handle 8, described suspension ring 7 have four symmetries to be positioned on casing 3 upper sides, and described grounding nut 10 is positioned on the lower right corner of casing 3, pole body 12 comprises outlet column 121, vacuum interrupter 122, upper supporting column insulating cylinder 123, conductive clip 124, lower supporting rod insulating cylinder 125, touch spring 126, connecting rod 127, radiation fins 128, body 129 is flexible coupling, flange 130 and insulated tension pole 131, described upper outlet column 121 is positioned at the top of vacuum interrupter 122, described upper supporting column insulating cylinder 123 is wrapped in vacuum interrupter 122 outsides, described conductive clip 124, touch spring 126 is connected from top to bottom successively with connecting rod 127, described lower supporting rod insulating cylinder 125 is wrapped in the outside of conductive clip 124 and touch spring 126, described radiation fins 128 is wrapped in the outside of upper supporting column insulating cylinder 123, the described body 129 that is flexible coupling is positioned at the centre of radiation fins 128 and insulated tension pole 131, on the described body 129 that is flexible coupling, leave two connecting holes, described flange 130 is connected to the side of the body 129 that is flexible coupling.
Operation principle: man-operating mechanism operating principle: closing operation, first pull stored energy operation handle 8 to carry out energy storage, the operational torque of executing changes from small to big, it is instantaneous in switching-in spring is crossed, switching-in spring releases energy, and impels energy-storage system to be rotated counterclockwise and drives connecting lever to rotate, and drives power transmission shaft to make breaker closing, separating brake connecting lever fastens separating brake semiaxis simultaneously, makes circuit breaker in "on" position; Mechanism is under "on" position, and cam and rotary axle box depart from, and mechanism can not close a floodgate again.Sub-switching operation, after breaker closing, pull separating brake handle or in the time that line current exceedes the set point of inrush current prevention device overcurrent coil driven, all make separating brake semiaxis rotate, separating brake connecting lever is triped, drive link makes breaker open operation under the drive of tripping spring.Stored energy operation: draw stored energy operation handle 8, or energy storage motor rotate, under the drive of travelling gear, make cam rotate, switching-in spring is elongated gradually, in spring is crossed after, cam is kept no longer rotating by keeper, circuit breaker in prepare "on" position; Cam and power transmission shaft depart from simultaneously, make mechanism's energy storage again.Motor mechanism operating principle: electric brake operation, after energy storage, pulls breaking-closing operating handle 5 or apply voltage to closing coil, the semiaxis that makes to close a floodgate rotates, and combined floodgate connecting lever and combined floodgate semiaxis are triped, and switching-in spring releases energy, drive power transmission shaft to make breaker closing, tripping spring is by energy storage simultaneously.Mechanism, under "on" position, then carries out stored energy operation, and switching-in spring is elongated again, spring cross in after, combined floodgate semiaxis is fastened by interlock, avoids mechanism's false switching.At the energy storage state that closes a floodgate, mechanism, in reclosing state, can realize the operation of " O-0.3S-CO " single shot reclosing.Sub-switching operation, after breaker closing, pull breaking-closing operating handle 5 or to switching winding apply voltage or in the time that line current exceedes the set point of inrush current prevention device overcurrent coil driven, all make separating brake semiaxis rotate, separating brake connecting lever is triped, and drive link makes breaker open operation under the drive of tripping spring.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this specification is described according to execution mode, but be not that each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other execution modes that it will be appreciated by those skilled in the art that.
Claims (5)
1. a vacuum circuit-breaker, comprise the seat that rolls off the production line, current transformer, casing, chain axle, breaking-closing operating handle, energy storage Sign Board, suspension ring, stored energy operation handle, deciliter Sign Board, grounding nut, nameplate, pole body and lower place line terminals, it is characterized in that: described in roll off the production line summation current transformer connect, described current transformer is connected with pole body, described lower place line terminals is positioned at the top of pole body, and described pole body is positioned on casing, described chain axle has two two sides that are positioned at casing, and described breaking-closing operating handle, energy storage Sign Board, stored energy operation handle and deciliter Sign Board are all positioned on the leading flank of casing, described suspension ring have four symmetries to be positioned on casing upper side, and described grounding nut is positioned on the lower right corner of casing, pole body comprises outlet column, vacuum interrupter, upper supporting column insulating cylinder, conductive clip, lower supporting rod insulating cylinder, touch spring, connecting rod, radiation fins, body is flexible coupling, flange and insulated tension pole, described upper outlet column is positioned at the top of vacuum interrupter, described upper supporting column insulating cylinder is wrapped in vacuum extinction outdoor, described conductive clip, touch spring is connected from top to bottom successively with connecting rod, described lower supporting rod insulating cylinder is wrapped in the outside of conductive clip and touch spring, described radiation fins is wrapped in the outside of upper supporting column insulating cylinder, the described body that is flexible coupling is positioned at the centre of radiation fins and insulated tension pole, described flange is connected to the side of the body that is flexible coupling.
2. a kind of vacuum circuit-breaker according to claim 1, is characterized in that: described pole body has three, and middle pole body no current instrument transformer structure.
3. a kind of vacuum circuit-breaker according to claim 1, is characterized in that: described breaking-closing operating handle is connected with energy storage Sign Board and a deciliter Sign Board by travelling gear respectively with stored energy operation handle.
4. a kind of vacuum circuit-breaker according to claim 1, is characterized in that: described breaking-closing operating handle is all connected with pole body by power line with stored energy operation handle.
5. a kind of vacuum circuit-breaker according to claim 1, is characterized in that: described in be flexible coupling on body and leave two connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152802.XU CN203812796U (en) | 2014-04-01 | 2014-04-01 | Vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152802.XU CN203812796U (en) | 2014-04-01 | 2014-04-01 | Vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812796U true CN203812796U (en) | 2014-09-03 |
Family
ID=51451515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152802.XU Expired - Fee Related CN203812796U (en) | 2014-04-01 | 2014-04-01 | Vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812796U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321765A (en) * | 2015-09-22 | 2016-02-10 | 苏州普京真空技术有限公司 | Electric power vacuum switch |
| CN106128844A (en) * | 2016-08-22 | 2016-11-16 | 屈荐映 | A kind of outdoor AC high-voltage porcelain knob breaker |
| CN108807065A (en) * | 2017-05-05 | 2018-11-13 | 人民电器集团上海有限公司 | It is a kind of to be conveniently operated and the vacuum circuit breaker of overvoltage protection |
-
2014
- 2014-04-01 CN CN201420152802.XU patent/CN203812796U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321765A (en) * | 2015-09-22 | 2016-02-10 | 苏州普京真空技术有限公司 | Electric power vacuum switch |
| CN106128844A (en) * | 2016-08-22 | 2016-11-16 | 屈荐映 | A kind of outdoor AC high-voltage porcelain knob breaker |
| CN108807065A (en) * | 2017-05-05 | 2018-11-13 | 人民电器集团上海有限公司 | It is a kind of to be conveniently operated and the vacuum circuit breaker of overvoltage protection |
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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: 20140903 Termination date: 20150401 |
|
| EXPY | Termination of patent right or utility model |