CN203882864U - Outdoor high-voltage vacuum circuit breaker - Google Patents
Outdoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN203882864U CN203882864U CN201420179953.4U CN201420179953U CN203882864U CN 203882864 U CN203882864 U CN 203882864U CN 201420179953 U CN201420179953 U CN 201420179953U CN 203882864 U CN203882864 U CN 203882864U
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- China
- Prior art keywords
- current transformer
- circuit breaker
- pillar
- connecting rod
- breaker
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- Expired - Fee Related
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Abstract
The utility model discloses an outdoor high-voltage vacuum circuit breaker, which comprises a box body, three supporting columns arranged on the box body and an operating mechanism, wherein the top part of the supporting column is provided with an upper outgoing line terminal, the side wall of the supporting column is provided with a lower outgoing line terminal, the lower outgoing line terminal is provided with a current transformer, the current transformer is electrically connected with a body of the supporting column, a vacuum arc-extinguishing chamber, an insulating pull rod and a connecting rod are connected in the supporting column from top to bottom, the vacuum arc-extinguishing chamber is connected with the upper outgoing line terminal, the connecting rod extends to the internal part of the box body, a connecting part of the vacuum arc-extinguishing chamber and the insulating push rod is provided with a connecting base, the connecting base is connected with the lower outgoing line terminal through a flange, the insulating push rod and the connecting rod are provided with a contact spring therebetween, the box body is provided with an opening-closing operating handle and an energy storage operating handle, and the opening-closing operating handle and the energy storage operating handle are connected with the connecting rods through the operating mechanism. The circuit breaker is further provided with a two-phase or three-phase current transformer, additionally provided with a current transformer for measurement, and externally provided with a three-phase linkage isolating switch. The outdoor high-voltage vacuum circuit breaker reduces the failure rate and prolongs the service life.
Description
Technical field
The utility model relates to a kind of circuit breaker, particularly a kind of outdoor high-voltage vacuum breaker.
Background technology
Vacuum circuit-breaker because of its arc-extinguishing medium and arc extinguishing after the dielectric in contact gap be all that high vacuum is gained the name; It has advantages of that volume is little, lightweight, be applicable to frequent operation, arc extinguishing need not overhaul, and in power distribution network, application is comparatively universal.Vacuum circuit-breaker is 3～10kV; indoor distribution in 50Hz three-phase alternating current system; in Ke Gong industrial and mining enterprises, power plant, transformer station as the use of protection and the control of electric equipment; be specially adapted to require the field of employment without oiling, few maintenance and frequent operation, circuit breaker is configurable at middle-placed switch cabinet, double-layer cabinet, fixedly use as control and protection high voltage electric equipment in cabinet.
Vacuum circuit-breaker is arranged on behind open air, affected by extraneous adverse circumstances, often breaks down, and particularly some vacuum circuit-breakers are arranged on eminence, and it is very inconvenient to repair.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of outdoor high-voltage vacuum breaker, reduces failure rate, increases the service life, to solve the above-mentioned multinomial defect causing in prior art.
For achieving the above object, the utility model provides following technical scheme: a kind of outdoor high-voltage vacuum breaker, comprise casing, be placed in three pillars and operating mechanism on casing, the napex of described pillar is provided with outlet terminal, the sidewall of pillar is provided with lower wire end, lower wire end is provided with current transformer, current transformer is electrically connected to pillar body, in pillar, be connected with from top to down vacuum interrupter, insulated tension pole and connecting rod, vacuum interrupter is connected with upper outlet terminal, connecting rod extends in casing, the junction of vacuum interrupter and insulated tension pole is provided with Connection Block, Connection Block is connected with lower wire end by flange, between insulated tension pole and connecting rod, be provided with touch spring, described casing is provided with breaking-closing operating handle and stored energy operation handle, breaking-closing operating handle is connected with connecting rod respectively by operating mechanism with stored energy operation handle, described circuit breaker is equiped with two-phase or threephase current transformer, described circuit breaker adds current transformer for metering, the outer isolating switch with three-phase ganged of described circuit breaker, described isolating switch have and breaker body between anti-mistaken interlocking device.
Preferably, the lateral wall cover of described vacuum interrupter has radiation fins.
Preferably, described pillar outside is enclosed with the insulation of epoxy resin solid.
Preferably, described pillar is comprised of upper supporting column insulating cylinder and lower supporting rod insulating cylinder, and described upper outlet terminal is arranged on the Xiang Duan of upper supporting column insulating cylinder, and described lower wire end is arranged on the sidewall of lower supporting rod insulating cylinder.
Adopt the beneficial effect of above technical scheme to be: circuit breaker adopts three-phase column support type structure, have break performance reliable and stable, without burning and explosion hazard, freedom from repairs, volume is little, lightweight and the feature such as long service life, circuit breaker adopts full-closed structure, good seal performance, contribute to improve moistureproof, anti-condensation performance, being specially adapted to severe cold or humid area uses, three-phase pillar and current transformer adopt the outdoor epoxy resin solid insulation of import, or adopt indoor epoxy resin outsourcing organic silicon rubber solid insulation; Have high-low temperature resistant, UV resistant, the feature such as ageing-resistant, operating mechanism adopts small size spring operating mechanism, and energy storage motor power is little, and divide-shut brake energy consumption is low; Mechanism driving adopts straight moving transmission means, and amount of parts is few, and reliability is high.Operating mechanism is placed in the mechanism case of sealing, has solved the problem of operating mechanism corrosion, has improved the reliability of mechanism, circuit breaker minute, closing operation can adopt manually or electric operating and remote control operation.Can with the supporting power distribution automation of realizing of intelligent controller, also can with reclosing controller mix proportion automatic recloser, sectionalizer, circuit breaker can be installed two-phase or threephase current transformer, for overcurrent or short-circuit protection, also can provide current acquisition signal to intelligent controller; According to user, require to install current transformer for metering additional, circuit breaker is the isolating switch of three-phase ganged in addition, has obviously visible fracture under isolating switch gate-dividing state, and possess and breaker body between anti-mistaken interlocking device.When circuit breaker is in closing position, isolating switch can not divide, closing operation; Only have isolation knife to close a floodgate completely or completely just can operating breaker during separating brake, can even fill lightning arrester post insulator, easy to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of outdoor high-voltage vacuum breaker of the utility model;
Fig. 2 is the structural representation of pillar shown in Fig. 1;
Fig. 3 is the structural representation of pillar inside.
Wherein, the upper outlet terminal of 1--, 2--vacuum interrupter, 3--upper supporting column insulating cylinder, 4--conductive clip, 5--lower supporting rod insulating cylinder, 6--touch spring, 7--connecting rod, 8--radiation fins, 9--Connection Block, 10--flange, 11--insulated tension pole, 12--lower wire end, 13--current transformer, 14--casing, 15--pillar, 16--breaking-closing operating handle, 17--stored energy operation handle.
Embodiment
Below in conjunction with accompanying drawing, describe a kind of preferred implementation of the present utility model in detail.
Fig. 1 has shown embodiment of the present utility model: a kind of outdoor high-voltage vacuum breaker, comprise casing 14, be placed in three pillars 15 and operating mechanism on casing 14, the top of described pillar 15 is provided with outlet terminal 1, the sidewall of pillar 15 is provided with lower wire end 12, lower wire end is provided with current transformer 13, current transformer 13 is electrically connected to pillar 15 bodies, and described casing 14 is provided with breaking-closing operating handle 16 and stored energy operation handle 17.
In conjunction with Fig. 2 and Fig. 3, in pillar 15, be connected with from top to down vacuum interrupter 2, insulated tension pole 11 and connecting rod 7, vacuum interrupter 2 is connected with upper outlet terminal 1, connecting rod 7 extends in casing 14, vacuum interrupter 2 is provided with Connection Block 9 with the junction of insulated tension pole 11, Connection Block 9 is connected with lower wire end by flange 10, between Connection Block 9 and vacuum interrupter 2, be provided with conductive clip 4, between insulated tension pole 11 and connecting rod 7, be provided with touch spring 6, the lateral wall cover of vacuum interrupter 2 has radiation fins 8, pillar 15 outsides are enclosed with the insulation of epoxy resin solid, pillar 15 is comprised of upper supporting column insulating cylinder 3 and lower supporting rod insulating cylinder 5, upper outlet terminal 1 is arranged on the top of upper supporting column insulating cylinder 3, lower wire end 12 is arranged on the sidewall of lower supporting rod insulating cylinder 5, breaking-closing operating handle 16 is connected with connecting rod 7 respectively by operating mechanism with stored energy operation handle 17.
Circuit breaker adopts three-phase column support type structure, have break performance reliable and stable, without burning and explosion hazard, freedom from repairs, volume is little, lightweight and the feature such as long service life, circuit breaker adopts full-closed structure, good seal performance, contribute to improve moistureproof, anti-condensation performance, be specially adapted to severe cold or humid area and use, three-phase pillar and current transformer adopt the outdoor epoxy resin solid insulation of import, or adopt indoor epoxy resin outsourcing organic silicon rubber solid insulation; Have high-low temperature resistant, UV resistant, the feature such as ageing-resistant, operating mechanism adopts small size spring operating mechanism, and energy storage motor power is little, and divide-shut brake energy consumption is low; Mechanism driving adopts straight moving transmission means, and amount of parts is few, and reliability is high.Operating mechanism is placed in the mechanism case of sealing, has solved the problem of operating mechanism corrosion, has improved the reliability of mechanism, circuit breaker minute, closing operation can adopt manually or electric operating and remote control operation.Can with the supporting power distribution automation of realizing of intelligent controller, also can with reclosing controller mix proportion automatic recloser, sectionalizer, circuit breaker can be installed two-phase or threephase current transformer, for overcurrent or short-circuit protection, also can provide current acquisition signal to intelligent controller; According to user, require to install current transformer for metering additional, circuit breaker is the isolating switch of three-phase ganged in addition, has obviously visible fracture under isolating switch gate-dividing state, and possess and breaker body between anti-mistaken interlocking device.When circuit breaker is in closing position, isolating switch can not divide, closing operation; Only have isolation knife to close a floodgate completely or completely just can operating breaker during separating brake, can even fill lightning arrester post insulator, easy to maintenance.
In implementation process, man-operating mechanism operating principle, closing operation: first pull energy accumulation handle to carry out energy storage, the operational torque of executing changes from small to big, and instantaneous in switching-in spring is crossed, switching-in spring releases energy, impel energy-storage system to be rotated counterclockwise and drive connecting lever to rotate, drive 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 when line current surpasses 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.
Motor drive mechanism operating principle, stored energy operation: pull energy accumulation handle, or energy storage motor rotates, 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, and circuit breaker is in preparing "on" position; Cam and power transmission shaft depart from simultaneously, make mechanism's energy storage again.
Closing operation: after energy storage, pull closing by hand 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, drives power transmission shaft to make breaker closing, and 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 " 0-0.3S-CO " single shot reclosing.
Sub-switching operation: after breaker closing, pull separating brake handle or to switching winding apply voltage or when line current surpasses 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.
Note: operating mechanism overcurrent coil is short time duty, can not be through-flow for a long time.
Above-described is only preferred implementation of the present utility model, it should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement.
Claims (4)
1. an outdoor high-voltage vacuum breaker, comprise casing, be placed in three pillars and operating mechanism on casing, it is characterized in that: the top of described pillar is provided with outlet terminal, the sidewall of pillar is provided with lower wire end, lower wire end is provided with current transformer, current transformer is electrically connected to pillar body, in pillar, be connected with from top to down vacuum interrupter, insulated tension pole and connecting rod, vacuum interrupter is connected with upper outlet terminal, connecting rod extends in casing, the junction of vacuum interrupter and insulated tension pole is provided with Connection Block, Connection Block is connected with lower wire end by flange, between insulated tension pole and connecting rod, be provided with touch spring, described casing is provided with breaking-closing operating handle and stored energy operation handle, breaking-closing operating handle is connected with connecting rod respectively by operating mechanism with stored energy operation handle, described circuit breaker is equiped with two-phase or threephase current transformer, described circuit breaker adds current transformer for metering, the outer isolating switch with three-phase ganged of described circuit breaker, described isolating switch have and breaker body between anti-mistaken interlocking device.
2. outdoor high-voltage vacuum breaker according to claim 1, is characterized in that: the lateral wall cover of described vacuum interrupter has radiation fins.
3. outdoor high-voltage vacuum breaker according to claim 2, is characterized in that: described pillar outside is enclosed with the insulation of epoxy resin solid.
4. according to the outdoor high-voltage vacuum breaker described in claim 1 or 3, it is characterized in that: described pillar is comprised of upper supporting column insulating cylinder and lower supporting rod insulating cylinder, described upper outlet terminal is arranged on the top of upper supporting column insulating cylinder, and described lower wire end is arranged on the sidewall of lower supporting rod insulating cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179953.4U CN203882864U (en) | 2014-04-08 | 2014-04-08 | Outdoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179953.4U CN203882864U (en) | 2014-04-08 | 2014-04-08 | Outdoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882864U true CN203882864U (en) | 2014-10-15 |
Family
ID=51683338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179953.4U Expired - Fee Related CN203882864U (en) | 2014-04-08 | 2014-04-08 | Outdoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203882864U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
- 2014-04-08 CN CN201420179953.4U patent/CN203882864U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20160408 |