CN103681098A - Circuit breaker with isolation stations and switchgear utilizing circuit breaker - Google Patents
Circuit breaker with isolation stations and switchgear utilizing circuit breaker Download PDFInfo
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- CN103681098A CN103681098A CN201310622689.7A CN201310622689A CN103681098A CN 103681098 A CN103681098 A CN 103681098A CN 201310622689 A CN201310622689 A CN 201310622689A CN 103681098 A CN103681098 A CN 103681098A
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- Prior art keywords
- isolation
- control device
- arc control
- moving contact
- station
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
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- Arc-Extinguishing Devices That Are Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention discloses a circuit breaker with isolation stations and switchgear utilizing the circuit breaker. The circuit breaker with the isolation station comprises an arc suppressing chamber with two electrodes. Two isolation dynamic contacts are assembled on the arc suppressing chamber in a linear guiding movable manner. An ON station and an isolation station are set on the linear moving stroke of each isolation dynamic contact. The two isolation dynamic contacts are conducted with the two electrodes of the arc suppressing chamber correspondingly. Each isolation dynamic contact is provided with a contact part for conduction between the ON station and the corresponding isolation static contact. As the circuit breaker is provided with the isolation dynamic contacts capable of conducting the corresponding isolation static contacts movably, the isolation stations are added, the main circuit of the switchgear can be cut off completely during maintenance and potential safety hazards are eliminated during use of the switchgear.
Description
Technical field
The present invention relates to power transmission and distribution switch cubicle and circuit breaker thereof.
Background technology
Whether current switch cubicle both domestic and external can shift out and be divided into fixed and withdraw-type according to circuit breaker, and fixed cabinet exists the very problem of inconvenience of maintenance owing to being difficult to dismounting, withdraw-type cabinet of the prior art is as the disclosed a kind of switch cubicle of CN 203260933 U, the wallboard made from steel plate in its cabinet is separated and is formed a plurality of compartments, generally comprise the bus-bar room at top, the breaker chamber at middle part, the cable vault of bottom, handcart type breaker is housed in breaker chamber, handcart type breaker comprises along moving forward and backward the handcart on assembling guide rail in the horizontal direction and being fixed on the circuit breaker on handcart, circuit breaker comprises the arc control device of setting and the contact of breaker conducting electricity respectively with the two poles of the earth of arc control device, the contact of breaker of horizontal expansion is arranged on arc control device and along up and down and column distribution, contact of breaker can move back and forth with before and after handcart, when handcart ecto-entad enters in breaker chamber and while moving to working position, two contact of breaker can be respectively and bus-bar room, fixed contact on the wallboard of cable vault in set contact box is pegged graft and is coordinated conduction, and these two fixed contacts are respectively and a bus, one time cable connects.Therefore cut-offfing of a major loop of handcart type breaker of the prior art and switch cubicle is to carry out with the movement of handcart, although withdraw-type cabinet maintains easily and overhauls, but coefficient of safety is lower, particularly, in the switch cubicle of large electric current, exist the hidden danger that security incident and loss of life or personal injury occur while shaking out handcart.
In addition, circuit breaker inner wire majority is copper bar at present, but because the arc control device of existing vertical layout have again horizontal contact of breaker, and cause the galvanic circle route of circuit breaker to arrange irregularity, therefore expend a lot of copper products.And cause cabinet transverse gage size larger.
Summary of the invention
The object of the present invention is to provide a kind of circuit breaker that improves the band isolation station of fail safe.The switch cubicle that uses this circuit breaker is provided simultaneously.
A kind of circuit breaker technical scheme with isolation station of the present invention is: a kind of circuit breaker with isolation station, comprise arc control device, arc control device have two electrodes, on arc control device, along straight-line guidance, move and be equipped with two isolation moving contacts, each is isolated and on the traveling priority stroke of moving contact, has the station of connection and isolation station, two isolation moving contacts are answered conducting with two electrode pairs of arc control device respectively, and each is isolated and on moving contact, is also respectively equipped with for connecting station and isolating accordingly the contact portion that fixed contact contacts conducting.
Described arc control device arrange and to have upper electrode and a lower electrode for erectting, described two isolation moving contacts be respectively along the vertical direction guiding movement be assemblied in upper isolation moving contact, the lower isolation moving contact of arc control device top and arc control device bottom, upper isolation moving contact, lower isolation moving contact respectively with upper electrode, the lower electrode conducting of arc control device; Described upper isolation moving contact is mobile along the vertical direction and descend thereon on shift motion, to have top connection station and isolation station on the lower, the described lower isolation moving contact connection station that movement descending thereon has on shift motion on the lower along the vertical direction and top isolation station.
Station is being connected in arc control device over top in described upper isolation moving contact top, and upper isolation moving contact bottom is isolating station below arc control device top.
Station is being connected below arc control device bottom in described lower isolation moving contact bottom, and lower isolation moving contact top is isolating station above arc control device bottom.
Described arc control device top, bottom is fixed with respectively with the upper wire outlet seat of upper electrode conducting, with the lower wire outlet seat of lower electrode conducting, the upper and lower guiding movement of described upper isolation moving contact be assemblied in wire outlet seat and with upper wire outlet seat conductive contact, the upper and lower guiding movement of lower isolation moving contact be assemblied in lower wire outlet seat and with lower wire outlet seat conductive contact.
Described circuit breaker comprises holder or handcart, described arc control device have three-phase and are fixed on holder or handcart along fore-and-aft direction column distribution, described upper and lower isolation moving contact is distributed in the left and right sides of arc control device side by side, and holder or handcart bottom are provided with the hole being passed down through for isolation moving contact.
The technical scheme of switch cubicle of the present invention is: a kind of switch cubicle, comprise cabinet, in cabinet, be provided with breaker chamber, bus-bar room, cable vault, circuit breaker is housed in breaker chamber, circuit breaker comprises arc control device, each arc control device have two electrodes, on each arc control device, along straight-line guidance, move and be equipped with two isolation moving contacts, each is isolated and on the traveling priority stroke of moving contact, has the station of connection and isolation station, two isolation moving contacts are answered conducting with two electrode pairs of arc control device respectively, in switch cubicle, be also provided with the upper isolation fixed contact for the bus conducting with bus-bar room, lower isolation fixed contact for a cable conducting with cable vault, described two isolation be respectively equipped with on moving contacts for connect station respectively with, the contact portion of lower isolation fixed contact contact conducting.
Described arc control device arrange and to have upper electrode and a lower electrode for erectting, described two isolation moving contacts be respectively along the vertical direction guiding movement be assemblied in upper isolation moving contact, the lower isolation moving contact of arc control device top and arc control device bottom, upper isolation moving contact, lower isolation moving contact respectively with upper electrode, the lower electrode conducting of arc control device; Described upper isolation moving contact is mobile along the vertical direction and descend thereon on shift motion, to have top connection station and isolation station on the lower, the described lower isolation moving contact connection station that movement descending thereon has on shift motion on the lower along the vertical direction and top isolation station; Described upper and lower isolation fixed contact correspondence is arranged at the upper and lower of the breaker chamber in switch cubicle.
Described circuit breaker comprises holder or moves forward and backward the handcart being assemblied in breaker chamber, arc control device have three-phase and are fixed on holder or handcart along fore-and-aft direction column distribution, described upper and lower isolation moving contact is distributed in the left and right sides of arc control device side by side, and holder or handcart bottom are provided with the hole being passed down through for isolation moving contact.
The circuit breaker of band isolation station of the present invention has the isolation moving contact of the corresponding isolation fixed contact of removable conducting, has so just increased isolation station, while using in switch cubicle, can guarantee that complete when maintenance and major loop disconnects, and not have potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of circuit breaker of the present invention;
Fig. 2 is the view at another visual angle of circuit breaker in Fig. 1;
Fig. 3 be circuit breaker of the present invention isolation moving contact in isolation station schematic diagram;
Fig. 4 is that the isolation moving contact of circuit breaker of the present invention is in connecting the schematic diagram of station;
Fig. 5 is the structural representation of the embodiment of switch cubicle of the present invention.
Embodiment
As Figure 1-Figure 4, the embodiment of circuit breaker of the present invention, it is a kind of handcart type breaker, comprise handcart 27, that erects is fixed on the arc control device 23 that three front and back on handcart 27 are set up in parallel, arc control device 23 have two electrodes up and down that cut-off under the driving of corresponding mechanism, and arc quenching chamber structure belongs to routine techniques and repeats no more.Each arc control device 23 tops and bottom are moved and are equipped with paired upper isolation moving contact 21, lower isolation moving contact 24 along straight-line guidance respectively, upper isolation moving contact 21, lower isolation moving contact 24 respectively with upper electrode, the lower electrode conducting of arc control device 23.
Upper and lower isolation moving contact drives and moves up and down in corresponding mechanism, and contacts with upper and lower wire outlet seat all the time in whole motion process.Drive dynamic/static contact in arc control device to cut-off (breaker arc extinguishing is indoor has the contact that can cut-off, and this belongs to prior art, and its structure repeats no more) and the straight moving operating mechanism moving of upper and lower isolation moving contact is arranged in mechanism case 26.Fig. 3, Figure 4 shows that circuit breaker is respectively in isolation and schematic diagram during on-state.Upper isolation moving contact 21 and lower isolation moving contact 24 have respectively operating mechanism separately to drive, and type of drive is for directly moving longitudinally.Connect the approximate linear that is arranged to of rear conductor, as shown in Figure 5.
Upper wire outlet seat 22, arc control device part 23 and the equal sealing of lower wire outlet seat 25 are as a whole.The integral body of sealing and mechanism case 26 are fixed on handcart 27.Handcart 27 is different from existing chassis vehicle, and because longitudinal layout of conductor makes will pass handcart at the conductor of isolating up and down moving contact during in work, so handcart 27 is provided with the frame structure in the hole that the lower isolation moving contact 24 of confession passes through for bottom.
Shown in Fig. 1-Fig. 5, the embodiment of the switch cubicle of the circuit breaker of the above-mentioned circuit breaker embodiment of use of the present invention, comprises cabinet 1, is provided with breaker chamber 2 and the bus-bar room in breaker chamber upper and lower 3, cable vault 4 respectively in cabinet.
Wherein in breaker chamber 2, be equipped with as Figure 1-Figure 4 and the embodiment of above-mentioned circuit breaker described in circuit breaker, circuit breaker moves on the track that is assemblied in breaker chamber 2 bottoms along the fore-and-aft direction of cabinet, three arc control device 23 erectting are set up in parallel along cabinet fore-and-aft direction, upper and lower wire outlet seat 22,25 left and right directions at cabinet on each arc control device 23 are distributed in the both sides of arc control device 23, and on two wire outlet seats, the upper and lower isolation moving contact of mobile assembling is also distributed in the left and right sides of arc control device relatively.The front panel of cabinet 1 is provided with the observation window 14 of observing isolation moving contact state.
In bus-bar room 3, be equipped with the three-phase main bus bar that is arranged in juxtaposition along cabinet fore-and-aft direction in bus-bar room and with the upper isolation fixed contact 32 of each bus conducting, each main bus bar is along left and right directions horizontal-extending, each main bus bar is " two D type " bus, on main bus bar, have bolt hole, upper isolation fixed contact 32 the first half are square-section, by two D type buses, are clamped and adopt bolt to fix, and upper isolation fixed contact 32 bottoms are downward opening tubular, the axis of pipe is vertical direction, and inside is provided with spring touch finger.Lower isolation fixed contact 41 with a cable conducting of cable vault is housed in cable vault 4, and the lower end of lower isolation fixed contact 41 coaxially arranges with corresponding lower isolation moving contact 24, and upper and lower isolation fixed contact is tubular.
Each major loop in this switch cubicle embodiment mainly consists of main bus bar, upper isolation fixed contact 32, upper isolation moving contact 21, upper wire outlet seat 22, arc control device 23, lower wire outlet seat 25, lower isolation moving contact 24, lower isolation fixed contact 41, a cable.Three-phase major loop is arranged in juxtaposition along cabinet fore-and-aft direction (being the larger-size depth direction of cabinet) level, compare along cabinet left and right directions (being the Width that cabinet size the is less) mode of being arranged in juxtaposition with common three-phase major loop, this scheme can reduce the width of cabinet.
The embodiment course of work of above-mentioned switch cubicle is as follows, circuit breaker is when on-state, upper isolation moving contact contacts with the spring touch finger in upper wire outlet seat 22 with upper isolation fixed contact 32 respectively at two ends Shang Xia 21, lower isolation moving contact contacts with the spring touch finger in lower wire outlet seat 25 with lower isolation fixed contact 41 respectively at two ends Shang Xia 24, now by cut-offfing of circuit breaker, can control cut-offfing of major loop.Circuit breaker is by on-state during to isolation, and upper isolation moving contact 21 moves downward, and lower isolation moving contact 24 moves upward, separated with upper and lower isolation fixed contact 32,41 respectively, forms isolation fracture.When isolated location, upper and lower isolation moving contact still contacts with the spring touch finger in upper and lower wire outlet seat near one end of isolation fracture, away from isolation fracture one end unsettled and with arc control device 23 column distribution, thereby taken the space of arc control device 23 left and right sides, take full advantage of clear position, thereby can reduce the size of cabinet.
In other embodiments of the invention, the main bus bar of switch cubicle can also adopt other shape bus, such as rectangle, grooved or circular busbar, circuit breaker also can adopt fixed, all electric-conductors on major loop also can adopt other shape, and particularly hour, upper and lower isolation moving contact adopts circle more suitable to switch cubicle electric current, between upper and lower wire outlet seat and arc control device, also can not adopt the mode of bolt or cast to fix, such as welding, upper and lower isolation moving contact can not be connected by spring touch finger with upper and lower isolation fixed contact yet, such as connecting with bolt, and watchband-shaped contactor, the connected modes such as blade type contact, the insulation mode of same cabinet also can adopt gas-insulated, by circuit breaker with to isolate up and down the isolating switch that fixed contact forms jointly can be both two station disconnecting switchs, also can be by upper, lower isolation method is revised through simple, become three station isolation grounding switchs, to be suitable for multi-form switch cubicle, and circuit breaker also can be for being fixed on fixed in breaker chamber, now handcart being replaced with to holder is fixed on the devices such as arc control device on holder, the isolation moving contact of circuit breaker also can change horizontal direction movable type according to actual needs into, can directly coordinate with the isolation fixed contact of horizontal expansion of the prior art like this to realize and connect and isolation, use in addition the switch cubicle of circuit breaker not only can realize fixed but also can realize withdraw-type.Under normal circumstances, circuit breaker is without shifting out, and can realize the function such as connection, isolation of circuit by the action of circuit breaker and insulating contact; Without dismounting, by framework handcart, circuit breaker can be shifted out when overhaul of line breaker or while safeguarding, make maintenance or safeguard convenient.
Claims (9)
- One kind with isolation station circuit breaker, comprise arc control device, arc control device have two electrodes, it is characterized in that: on arc control device, along straight-line guidance, move and be equipped with two isolation moving contacts, each is isolated and on the traveling priority stroke of moving contact, has the station of connection and isolation station, two isolation moving contacts are answered conducting with two electrode pairs of arc control device respectively, and each is isolated and on moving contact, is also respectively equipped with for connecting station and isolating accordingly the contact portion that fixed contact contacts conducting.
- 2. circuit breaker according to claim 1, it is characterized in that: described arc control device arrange and to have upper electrode and a lower electrode for erectting, described two isolation moving contacts be respectively along the vertical direction guiding movement be assemblied in upper isolation moving contact, the lower isolation moving contact of arc control device top and arc control device bottom, upper isolation moving contact, lower isolation moving contact respectively with upper electrode, the lower electrode conducting of arc control device; Described upper isolation moving contact is mobile along the vertical direction and descend thereon on shift motion, to have top connection station and isolation station on the lower, the described lower isolation moving contact connection station that movement descending thereon has on shift motion on the lower along the vertical direction and top isolation station.
- 3. circuit breaker according to claim 2, is characterized in that: station is being connected in arc control device over top in described upper isolation moving contact top, and upper isolation moving contact bottom is isolating station below arc control device top.
- 4. circuit breaker according to claim 2, is characterized in that: station is being connected below arc control device bottom in described lower isolation moving contact bottom, and lower isolation moving contact top is isolating station above arc control device bottom.
- 5. circuit breaker according to claim 2, it is characterized in that: described arc control device top, bottom is fixed with respectively with the upper wire outlet seat of upper electrode conducting, with the lower wire outlet seat of lower electrode conducting, the upper and lower guiding movement of described upper isolation moving contact be assemblied in wire outlet seat and with upper wire outlet seat conductive contact, the upper and lower guiding movement of lower isolation moving contact be assemblied in lower wire outlet seat and with lower wire outlet seat conductive contact.
- 6. circuit breaker according to claim 2, it is characterized in that: described circuit breaker comprises holder or handcart, described arc control device have three-phase and are fixed on holder or handcart along fore-and-aft direction column distribution, described upper and lower isolation moving contact is distributed in the left and right sides of arc control device side by side, and the bottom of holder or handcart is provided with the hole being passed down through for isolation moving contact.
- 7. a switch cubicle, comprise cabinet, in cabinet, be provided with breaker chamber, bus-bar room, cable vault, circuit breaker is housed in breaker chamber, circuit breaker comprises arc control device, each arc control device have two electrodes, it is characterized in that: on each arc control device, along straight-line guidance, move and be equipped with two isolation moving contacts, each is isolated and on the traveling priority stroke of moving contact, has the station of connection and isolation station, two isolation moving contacts are answered conducting with two electrode pairs of arc control device respectively, in switch cubicle, be also provided with the upper isolation fixed contact for the bus conducting with bus-bar room, lower isolation fixed contact for a cable conducting with cable vault, described two isolation be respectively equipped with on moving contacts for connect station respectively with, the contact portion of lower isolation fixed contact contact conducting.
- 8. switch cubicle according to claim 7, it is characterized in that: described arc control device arrange and to have upper electrode and a lower electrode for erectting, described two isolation moving contacts be respectively along the vertical direction guiding movement be assemblied in upper isolation moving contact, the lower isolation moving contact of arc control device top and arc control device bottom, upper isolation moving contact, lower isolation moving contact respectively with upper electrode, the lower electrode conducting of arc control device; Described upper isolation moving contact is mobile along the vertical direction and descend thereon on shift motion, to have top connection station and isolation station on the lower, the described lower isolation moving contact connection station that movement descending thereon has on shift motion on the lower along the vertical direction and top isolation station; Described upper and lower isolation fixed contact correspondence is arranged at the upper and lower of the breaker chamber in switch cubicle.
- 9. according to the switch cubicle described in claim 7 or 8, it is characterized in that: described circuit breaker comprises holder or moves forward and backward the handcart being assemblied in breaker chamber, arc control device have three-phase and are fixed on holder or handcart along fore-and-aft direction column distribution, described upper and lower isolation moving contact is distributed in the left and right sides of arc control device side by side, and holder or handcart bottom are provided with the hole being passed down through for isolation moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622689.7A CN103681098B (en) | 2013-11-30 | 2013-11-30 | A kind of with isolating the chopper of station and using the switch cubicle of this chopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622689.7A CN103681098B (en) | 2013-11-30 | 2013-11-30 | A kind of with isolating the chopper of station and using the switch cubicle of this chopper |
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| Publication Number | Publication Date |
|---|---|
| CN103681098A true CN103681098A (en) | 2014-03-26 |
| CN103681098B CN103681098B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310622689.7A Active CN103681098B (en) | 2013-11-30 | 2013-11-30 | A kind of with isolating the chopper of station and using the switch cubicle of this chopper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105633847A (en) * | 2016-03-30 | 2016-06-01 | 东电电气科技（杭州）股份有限公司 | High-voltage enclosed switch cabinet |
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| CN1885465A (en) * | 2006-06-12 | 2006-12-27 | 宁波天安（集团）股份有限公司 | Vacuum switch with up and low isolations |
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| CN105633847A (en) * | 2016-03-30 | 2016-06-01 | 东电电气科技（杭州）股份有限公司 | High-voltage enclosed switch cabinet |
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| CN103681098B (en) | 2016-07-06 |
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