CN104064397B - The rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch - Google Patents
The rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch Download PDFInfo
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- CN104064397B CN104064397B CN201310091123.6A CN201310091123A CN104064397B CN 104064397 B CN104064397 B CN 104064397B CN 201310091123 A CN201310091123 A CN 201310091123A CN 104064397 B CN104064397 B CN 104064397B
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Abstract
The present invention relates to a kind of rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch, high-pressure conductive loop is electrically connected into by conductive seat, vacuum interrupter and conductive tube, and with coaxial cylindrical earth shield cylinder solid insulating material integral packaging, pole both ends are equipped with the dynamic fingertip of rotation, in conductive tube built with sliding spring fingertip and direct acting disc spring cylinder combined member bar.Pole is fixed for lumbar support, both ends inlet-outlet line.Under the straight line and rotation driven of the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four, vacuum interrupter separating brake or the combined floodgate in pole can be made, realize breaker function, positive and negative 90 ° of rotations can also be carried out, high pressure vacuum isolation circuit breakers three-phase pole is set to realize the conversion of operating position and isolated location, disconnecting switch function is realized, there are high-visible double isolation fractures in isolated location.Product design has the advantages that compact-sized, small volume, non-maintaining, function and service, reliable.
Description
Technical field
The invention belongs to high-voltage electrical equipment field, is related to a kind of for protecting and controlling the high pressure of high-voltage electric power system true
The pole of empty isolation circuit breakers.The innovative development of the present invention also relates to current this area high-tension switch gear, especially
It is that solid-state insulated switchgear is pressed to the faced high voltage electric field of miniaturization, multistation, compact, highly reliable development, insulated
Coordinate, the relevant art countermeasure of structure design studies a question with pressure and sealing material therefor physical property, therefore has popularity
Technological difficulties breakthrough.
Background technology
The pole overwhelming majority of high-pressure vacuum breaker only has simple function at present, that is, divides or close function (see Fig. 1).
To meet high-voltage isulation function, the high-visible isolation fracture of major loop of switchgear is realized, frequently with by high pressure vacuum
Breaker makes handcart form, and to move to cabinet outer (see Fig. 2), realizes the disconnection of major loop of switchgear, both added operation into
This, operation is also troublesome, causes to send out during misoperation fault.Though indivedual pole products employ the knot of three station vacuum interrupters
Structure, but still it is not carried out the high-visible isolation fracture of integration, it is difficult to meet the requirement to high-voltage isulation.
The content of the invention
It is an object of the invention to solve the problems, such as that prior art is present and bottlenecks, a kind of compact-sized, behaviour is proposed
Make easy, safe and reliable, cost it is low there is the difunctional lumbal branch rotatably earth-shielded high voltage vacuum interrupter of equal pressure zone
Pole.
In order to solve the above technical problems, the implementation of the present invention is such：
A kind of rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch, including conductive seat, high pressure are true
Empty arc-chutes, earth shield cylinder, rotatably conductive tube, dynamic fingertip, sliding spring fingertip and direct acting disc spring cylinder combined member bar, wherein
Conductive seat, high voltage vacuum interrupter, earth shield cylinder and conductive tube are fixed as one, and its structure arrangement is followed successively by from top to bottom：
Conductive seat, high voltage vacuum interrupter, earth shield cylinder and conductive tube；The upper end of conductive seat and the lower end of conductive tube are respectively fixed with
Rotatably dynamic fingertip, is used for pole inlet wire and outlet；
Sliding spring fingertip and direct acting disc spring cylinder combined member bar are arranged on the inside of conductive tube, and sliding spring fingertip tapered sleeve
It is fastened on vacuum interrupter moving conductive rod, the screw-contact on spring touch finger can be abutted against with conductive tube internal chamber wall
Touch, direct acting disc spring cylinder combined member bar upper end and be threadedly coupled fixation on vacuum interrupter moving conductive rod, lower end by driving-chain and
The station integrated operating mechanism of high pressure vacuum isolation circuit breakers four couples, and is grasped in the station integratedization of high pressure vacuum isolation circuit breakers four
Moving contact in vacuum extinction room is turned on or off with static contact under the driving of motivation structure, realize vacuum interrupter in pole
Combined floodgate or separating brake；
Pole, which is arranged on, to be had on the longitudinal rotary high pressure vacuum isolation circuit breakers handcart of pivot point, it is not necessary to mobile hand
Car, you can positive and negative 90 ° of rotations can be carried out under the driving of the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four, it is real
Now a major loop is high-visible switches on and off.
Above-mentioned lumbal branch is rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, earth shield cylinder with it is conductive
Seat, high voltage vacuum interrupter and conductive tube are coaxial configuration, and are solid between earth shield cylinder and vacuum interrupter, conductive tube
Insulating materials.
Rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, earth shield cylinder is used and led above-mentioned lumbal branch
The carbon fiber of electricity adds nylon syringe to be molded, and turnup is in bell shape slightly outwards at cylinder both ends, and two-port crimping is the milli of radius 2
The spherical structure of rice.
For above-mentioned lumbal branch rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, earth shield cylinder barrel is thick
Spend for 1.5~2 millimeters, its material is consistent with solid insulating material thermal coefficient of expansion.
Above-mentioned lumbal branch is rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, pole waist outer ring
A boss is provided with, respectively there is the alternate full skirt of several sizes between boss and the upper and lower ends face of pole.
Rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, conductive tube includes pressure and adjusted above-mentioned lumbal branch
Flange and conductive cylinder are solved, it is that bowl structure outer surface cambered surface is smooth that the pressure, which reconciles flange, and set by bowl bottom
Screw thread combines as a whole with conductive cylinder.
Above-mentioned lumbal branch is rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, and pressure is reconciled flange and used
Aluminium alloy is made.
For above-mentioned lumbal branch rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, conductive seat is that indent is cylindrical
Barrel-like structure, the outer ring of its staving is smooth arc transition.
Above-mentioned lumbal branch is rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, and sliding spring fingertip is by spiral shell
Turn and fluting cylinder touch base composition are revolved, the V-groove that fluting cylinder touch base outer ring is machined with respective amount supplies spiral elastic ring
Installation is fixed, and the inside of the fluting cylinder touch base is up big and down small conical bore.
Rotatably in equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole, fluting cylinder touch base uses above-mentioned lumbal branch
T2 copper forges shaping, and described spiral elastic ring is formed by the beryllium material coiling of copper cobalt two, described spiral elastic ring quantity be 2~
3.
It is the device have the advantages that as follows：
1st, rotatably equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole makes high pressure vacuum break to lumbal branch of the invention
Road device and two difference in functionality equipment independent of each other of high voltage isolator, pole is rotated by lumbal branch and is combined into one, letter
Changed a main equipment arrangement and number, and make compact-sized complete set of equipments, small volume, easy to operate, operation expense is low,
Security reliability is high.
2nd, isolation circuit breakers handcart of the invention need not be moved to outside switch cubicle, pass through four station integrateds on circuit breaker cart
The isolator operation functional module for changing operating mechanism can be achieved with the isolation fracture that a major loop is high-visible in switch cubicle,
Meet requirement of the high-tension apparatus to insulation.
3rd, the structure design of the invention for using earth shield cylinder effectively to shield fixed bearing pole metal parts is comprehensive
Closing improves the Electric Field Distribution of pole waist concentration, has captured disconnecting switch under high voltage and has realized integral type work(with breaker
Can compound restriction difficult point, its is simple in construction, easy for installation, improves the withstanding voltage of product, is high-tension switch gear to work(
The breakthrough of one core of energy Composite designs.
4th, the setting of the conductive cartridge unit of the present invention had both made pole electric field press, pole mechanical intensity is improved, again
Solves the heat dissipation problem of galvanic circle in pole.
Brief description of the drawings
Fig. 1 is circuit breaker polar separating brake structural representation in the prior art.
Fig. 2 is circuit breaker polar combined floodgate structural representation in the prior art.
Fig. 3 moves to the outer operation principle schematic diagram of cabinet for circuit breaker cart in the prior art.
Fig. 4 is pole operation principle schematic diagram of the present invention.
Fig. 5 is that pole of the present invention couples schematic diagram with handcart, four station integrated operating mechanisms.
Fig. 6 is high voltage vacuum interrupter combined floodgate structural representation of the present invention.
Fig. 7 is high voltage vacuum interrupter separating brake structural representation of the present invention.
Fig. 8 is pole separating brake structural representation of the present invention.
Fig. 9 is pole combined floodgate structural representation of the present invention.
Figure 10 is structural representation (90 ° of angles) when pole of the present invention is connected.
Figure 11 is structural representation (0 ° of angle) when pole of the present invention disconnects.
Figure 12 is four station integrated operating mechanism schematic diagrames.
Figure 13 is pole earth shield barrel structure schematic diagram of the present invention.
Figure 14 is pole conductive tube structural representation of the present invention.
Figure 15 is pole conductive seat structural representation of the present invention.
Figure 16 is pole sliding spring contact finger structure schematic diagram of the present invention.
Reference is as follows：
1- conductive seats, 2- high voltage vacuum interrupters, 3- earth shield cylinders, 4- conductive tubes, the rotary fingertips of 5-, 6- slide bullet
Spring fingertip, 7- direct acting disc spring cylinder combined member bars, 8- spiral elastic rings, 9- fluting cylinder touch bases, 10- press conciliation flange, and 11- is led
Torch body, 12- handcart framves, 13- pivot points, major loop upper static contact of 14-, major loop lower static contact of 15-, 16-
Metal longeron, 17- driving-chains, the station integrated operating mechanisms of 18- tetra-, 19- breaker operator function modules, 20- disconnecting switch
Operating function module, static contact in 21- high voltage vacuum interrupters, moving contact in 22- high voltage vacuum interrupters, 23- high pressure vacuums
Arc-chutes moving conductive rod.
Embodiment
As shown in figure 4, rotatably equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole is main for the lumbal branch of the present invention
Including conductive seat 1, high voltage vacuum interrupter 2, earth shield cylinder 3, rotatably conductive tube 4, dynamic fingertip 5, the and of sliding spring fingertip 6
Direct acting disc spring cylinder combined member bar 7, conductive seat 1, high voltage vacuum interrupter 2, earth shield cylinder 3 and the solid insulation material of conductive tube 4
Expect integral packaging, earth shield cylinder 3 is arranged in pole loins, is coaxial configuration with high voltage vacuum interrupter 2, conductive tube 4,
It is solid insulating material between earth shield cylinder 3 and vacuum interrupter 2, conductive tube 4.At pole both ends equipped with rotary
Dynamic fingertip 5 is for inlet-outlet line.
Conductive tube 4 built with pole in the slip bullet that is directly connected to of the moving conductive rod of high voltage vacuum interrupter 2
Spring fingertip 6 and direct acting disc spring cylinder combined member bar 7.Sliding spring fingertip 6 electrically connects as high voltage vacuum interrupter 2 with conductive tube 4
Between bridge, direct acting disc spring cylinder combined member bar 7 be as driving high voltage vacuum interrupter 2 in dynamic/static contact splitting or integrating lock and combined floodgate
Pressure needed for dynamic/static contact is used afterwards.The tapered sleeve of sliding spring fingertip 6 is fastened on the moving conductive rod of vacuum interrupter 2, spring
Screw-contact 8 and the internal chamber wall reliable contacts of conductive tube 4 on fingertip 6, the upper end of direct acting disc spring cylinder combined member bar 7 is gone out with vacuum
It is threadedly coupled and fixes on the moving conductive rod of arc chamber 2, lower end is grasped by driving-chain and the station integratedization of high pressure vacuum isolation circuit breakers four
Motivation structure couples, and makes to move in vacuum interrupter 2 under the driving of the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four
Contact 22 is turned on or off with static contact 21, realizes the combined floodgate or separating brake of vacuum interrupter 2 in pole；
Pole waist has a boss, and raised head face shares eight screw thread down parts, wherein 4 solid for pole installation
Surely it is used, 4 confession earth shield cylinders are connected with the metal parts being grounded in addition is used.When pole band high pressure, earthing
Influence of the fixed pole metal parts of shielding installation to pole insulating properties can be played by covering cylinder 3, improve sealing pole
High voltage electric field distribution in post, improves pole withstanding voltage.Respectively there is number between boss and the upper and lower ends face of pole
The alternate full skirt of individual size, to increase pole outer surface along face creep age distance, improve pole outer surface dielectric level.
There is the high pressure vacuum isolation of pivot point disconnected as shown in figure 5, pole is fixed to by the installation of its waist boss
On the device handcart of road, while shielding cylinder 3 is connected reliably with the metal longeron 16 being grounded.In the station one of high pressure vacuum isolation circuit breakers four
Under the driving of body operating mechanism 18, direct acting disc spring cylinder combined member bar 7 is pushed and pulled by driving-chain 17 so that in pole
Moving contact 22 is turned on or off (as shown in Figure 6,7) with static contact 21 in vacuum interrupter 2, so as to realize vacuum in pole
The combined floodgate or separating brake (as shown in Figure 8,9) of arc-chutes 2, realize breaker function.
As shown in Figure 10 and Figure 11, need to move handcart with prior art and distinguish, pole of the invention is in high pressure
Under the driving of the station integrated operating mechanism 18 of vacuum isolation circuit breakers four, rotation of the pole on circuit breaker cart
Fulcrum 13 can carry out positive and negative 90 ° of rotations, make high pressure vacuum isolation circuit breakers three-phase pole realize operating position (connection) with isolating
The conversion of position (disconnection), realizes disconnecting switch function, has high-visible double isolation fractures in isolated location.
As shown in figure 12, the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four is high pressure vacuum isolation circuit breakers
Core component.It has two functional modules, i.e. breaker actuating functional module and disconnecting switch actuating functional module.Breaker
Actuating：Breaker actuating functional module acts, and operating mechanism output shaft pushes and pulls direct acting disc spring cylinder compound rod by driving-chain
Part realizes true arc-chutes separating brake or combined floodgate in pole, realizes breaker function.Disconnecting switch actuating：Disconnecting switch actuating work(
Energy module action, pivot point of the operating mechanism rotation driving pole on high pressure vacuum isolation circuit breakers handcart enter
The positive and negative 90 ° of rotations of row, make high pressure vacuum isolation circuit breakers three-phase pole realize operating position (connection) and isolated location (disconnection)
Conversion, realize disconnecting switch function, and there are high-visible double isolation fractures in isolated location.Breaker actuating function mould
Have between block and disconnecting switch actuating functional module and tightly reliably mechanically and electrically interlock.
Figure 13 is the structural representation of pole earth shield cylinder 3 of the present invention, and earth shield cylinder 3 is fine using conductive carbon
Dimension plus nylon syringe shaping, turnup is in bell shape slightly outwards at cylinder both ends, and two-port crimping is the sphere of 2 millimeters of radius
Structure；The wall thickness of earth shield cylinder 3 is 1.5~2 millimeters, and its material is consistent with solid insulating material thermal coefficient of expansion.
Figure 14 show the structural representation of pole conductive tube 4 of the present invention, including presses and reconcile flange 10 and conduction
It is that bowl structure outer surface cambered surface is smooth that cylinder 11, pressure, which reconcile flange 10, and the screw thread and conductive tube set by bowl bottom
Body 11 combines as a whole；Pressure is reconciled flange 10 and is made of aluminium alloy.
Figure 15 is pole conductive seat structural representation of the present invention, and conductive seat 1 is the cylindrical barrel-like structure of indent, its staving
Outer ring be smooth arc transition.
As shown in figure 16, pole sliding spring fingertip 6 of the present invention is by 9 groups of spiral elastic ring 8 and fluting cylinder touch base
Into the V-groove that the outer ring of fluting cylinder touch base 9 is machined with respective amount is fixed for spiral elastic ring installation, fluting cylinder touch base 9
Inside is up big and down small conical bore.Cylinder touch base 9 of wherein slotting forges shaping using T2 copper, and spiral elastic ring is by the beryllium of copper cobalt two
Material coiling forms, and the quantity of spiral elastic ring 8 is 2~3.
The pole of the present invention realizes high-pressure vacuum breaker and two kinds of functions of high voltage isolator simultaneously, makes complete
Compact equipment, small volume, easy to operate, operation expense is low, security reliability is high；In addition need not will be every in use
Moved to from circuit breaker cart outside switch cubicle, pass through the isolator operation work(of four station integrated operating mechanisms on circuit breaker cart
Energy module can be achieved with the isolation fracture that a major loop is high-visible in switch cubicle, meets high-tension apparatus and insulation is wanted
Ask.
Claims (8)
1. a kind of rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch, including conductive seat (1), high pressure are true
Empty arc-chutes (2), earth shield cylinder (3), rotatably conductive tube (4), dynamic fingertip (5), sliding spring fingertip (6) and direct acting disc spring
Cylinder combined member bar (7), it is characterised in that：
Described conductive seat (1), high voltage vacuum interrupter (2), earth shield cylinder (3) and conductive tube (4) is fixed as one, and it is tied
Structure arrangement is followed successively by from top to bottom：Conductive seat (1), high voltage vacuum interrupter (2), earth shield cylinder (3) and conductive tube (4)；Lead
The upper end of electric seat (1) and the lower end of conductive tube (4) are respectively fixed with rotatably dynamic fingertip (5), for pole inlet wire and outlet
It is used；
Described sliding spring fingertip (6) and direct acting disc spring cylinder combined member bar (7) is arranged on the inside of conductive tube (4), and slides
Spring touch finger (6) tapered sleeve is fastened on vacuum interrupter (2) moving conductive rod, the helical spring on sliding spring fingertip (6)
Enclose (8) and conductive tube (4) internal chamber wall reliable contacts, direct acting disc spring cylinder combined member bar (7) upper end and vacuum interrupter (2) moving conductive
It is threadedly coupled and fixes on bar, lower end is coupled by driving-chain with the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four,
Make under the driving of the station integrated operating mechanism of high pressure vacuum isolation circuit breakers four vacuum interrupter (2) interior moving contact (22) with
Static contact (21) is turned on or off, and realizes the combined floodgate or separating brake of vacuum interrupter in pole (2)；
Described pole, which is arranged on, to be had on the longitudinal rotary high pressure vacuum isolation circuit breakers handcart of pivot point, it is not necessary to mobile
Handcart, you can positive and negative 90 ° of rotations can be carried out under the driving of the station integrated operating mechanism (18) of high pressure vacuum isolation circuit breakers four
Turn, realize that a major loop is high-visible and switch on and off；
Described earth shield cylinder (3) and conductive seat (1), high voltage vacuum interrupter (2) and conductive tube (4) they are coaxial configuration, and
It is solid insulating material between earth shield cylinder (3) and vacuum interrupter (2), conductive tube (4)；
Described earth shield cylinder (3) wall thickness is 1.5~2 millimeters, its material and solid insulating material thermal coefficient of expansion one
Cause.
2. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 1, it is special
Sign is：Described earth shield cylinder (3) adds nylon syringe to be molded using conductive carbon fiber, cylinder both ends turnup slightly outwards
In bell shape, two-port crimping is the spherical structure of 2 millimeters of radius.
3. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 1, it is special
Sign is：The pole waist outer ring is provided with a boss, respectively has number between boss and the upper and lower ends face of pole
The alternate full skirt of individual size.
4. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 1, it is special
Sign is：Described conductive tube (4) includes pressure and reconciles flange (10) and conductive cylinder (11), and the pressure reconciles flange (10)
It is smooth for bowl structure outer surface cambered surface, and the screw thread set by bowl bottom combines as a whole with conductive cylinder (11).
5. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 4, it is special
Sign is：Described pressure is reconciled flange (10) and is made of aluminium alloy.
6. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 1, it is special
Sign is：Described conductive seat (1) is the cylindrical barrel-like structure of indent, and the outer ring of its staving is smooth arc transition.
7. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 1, it is special
Sign is：Described sliding spring fingertip (6) is made up of spiral elastic ring (8) and fluting cylinder touch base (9), described fluting circle
The V-groove that post touch base (9) outer ring is machined with respective amount is fixed for spiral elastic ring installation, the fluting cylinder touch base (9)
Inside is up big and down small conical bore.
8. the rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch according to claim 7, it is special
Sign is：Described fluting cylinder touch base (9) forges shaping using T2 copper, described spiral elastic ring by the beryllium material of copper cobalt two around
System forms, and described spiral elastic ring (8) quantity is 2~3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091123.6A CN104064397B (en) | 2013-03-20 | 2013-03-20 | The rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310091123.6A CN104064397B (en) | 2013-03-20 | 2013-03-20 | The rotary equal pressure zone earth shield high-tension vacuum arc-extinguishing chamber solid sealed pole of lumbal branch |
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| CN104064397A CN104064397A (en) | 2014-09-24 |
| CN104064397B true CN104064397B (en) | 2018-01-05 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106024499A (en) * | 2016-08-04 | 2016-10-12 | 天津市先智电气设备有限公司 | Side line outgoing type vacuum post terminal and handcart type side-mounted circuit breaker |
| CN108766831B (en) * | 2018-07-09 | 2023-09-15 | 广东维能电气有限公司 | High-voltage isolation vacuum circuit breaker solid-sealed pole |
| CN110718415B (en) * | 2018-07-12 | 2021-11-16 | 平高集团有限公司 | Vacuum circuit breaker |
| CN110718414B (en) * | 2018-07-12 | 2021-11-16 | 平高集团有限公司 | Vacuum circuit breaker |
| CN109036951B (en) * | 2018-08-29 | 2024-04-16 | 浙江紫光电器有限公司 | Module of multi-fracture high-voltage circuit breaker |
| CN111627782A (en) * | 2020-06-24 | 2020-09-04 | 正泰电气股份有限公司 | Combination of three-station disconnecting switch and circuit breaker suitable for inflating cabinet |
| CN114121545A (en) * | 2021-10-28 | 2022-03-01 | 协成科技股份有限公司 | A circuit breaker with a direct-acting double isolating switch transmission device |
| CN114360959A (en) * | 2021-12-21 | 2022-04-15 | 北京中车赛德铁道电气科技有限公司 | Vacuum insulation transmission rod and miniaturized vacuum circuit breaker |
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| CN203339047U (en) * | 2013-03-20 | 2013-12-11 | 广东维能电气有限公司 | Voltage-sharing ground-shield high-voltage vacuum arc-extinguishing chamber embedded pole of lumbar support rotation type |
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| US3562457A (en) * | 1967-11-14 | 1971-02-09 | Allis Chalmers Mfg Co | Combined vacuum circuit breaker and current transformer device |
| FR2683939B1 (en) * | 1991-11-20 | 1993-12-31 | Gec Alsthom Sa | MEDIUM VOLTAGE SELF-DISCONNECTING CIRCUIT BREAKER AND APPLICATION TO A CELL AND A MEDIUM VOLTAGE STATION. |
| CN200990333Y (en) * | 2006-07-31 | 2007-12-12 | 厦门华电开关有限公司 | Vacuum circuit breaker pole column |
| CN101178989B (en) * | 2006-11-08 | 2010-10-27 | 西安维能电气有限公司 | Longitudinal rotary type function composite type vacuum isolation circuit breakers |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203339047U (en) * | 2013-03-20 | 2013-12-11 | 广东维能电气有限公司 | Voltage-sharing ground-shield high-voltage vacuum arc-extinguishing chamber embedded pole of lumbar support rotation type |
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