CN100369172C - Vacuum circuit breaker - Google Patents
Vacuum circuit breaker Download PDFInfo
- Publication number
- CN100369172C CN100369172C CNB028238729A CN02823872A CN100369172C CN 100369172 C CN100369172 C CN 100369172C CN B028238729 A CNB028238729 A CN B028238729A CN 02823872 A CN02823872 A CN 02823872A CN 100369172 C CN100369172 C CN 100369172C
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- China
- Prior art keywords
- side terminal
- vacuum valve
- terminal conductor
- electrode side
- contact
- Prior art date
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- Expired - Fee Related
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- 230000008093 supporting effect Effects 0.000 claims abstract description 44
- 239000004020 conductor Substances 0.000 claims description 48
- 239000000758 substrate Substances 0.000 claims description 33
- 238000000926 separation method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 9
- 230000005684 electric field Effects 0.000 description 20
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000000116 mitigating effect Effects 0.000 description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002040 relaxant effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/66223—Details relating to the sealing of vacuum switch housings
Landscapes
- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The present invention relates to a vacuum circuit breaker, wherein a base plate is clamped in the middle of the present invention; a vacuum valve is arranged on one side of the base plate; a fixed electrode side terminal on the fixed electrode side end of the vacuum valve and a mobile electrode side terminal of the mobile electrode side terminal part are supported by a pair of insulation supporting bodies erected on the base plate; the base plate is clamped in the middle of the present invention; an operation mechanism is arranged on the opposite side of the vacuum valve; a link mechanism is opened and closed by driving components arranged in the insulation supporting body along the supporting direction and contacts connected with the operation mechanism and the mobile electrode side.
Description
Technical field
The present invention relates to vacuum circuit-breaker, especially relate to the vacuum circuit-breaker that is applicable to the switching device that carries out power switch control.
Background technology
Fig. 8 and Fig. 9 show the example of gas-insulated switchgear device of vacuum circuit-breaker of having understood a kind of use in the past, and Fig. 8 is the rated voltage 72kV that is disclosed in electric equipment association will (put down in October, 13 number) or the side cross-sectional view of other gas-insulated switchgear device of 84kV level.Among the figure, 1 is gas-insulated switchgear device, and 2 for enclosing the SF as the insulation medium
6The bulk container of gas, 3 is bus-bar room, wherein takes in the three-phase bus 4 of distribution between several devices that are set up in parallel.5 block for being used to, connection is from the circuit breaker of branch's major loop of bus 4 branches, 6 vacuum circuit-breakers that are connected with circuit breaker 5 by bonding conductor 5a for upper terminal, 7 for being connected with the lower terminal of circuit breaker 6 by bonding conductor 7a, the loop blocked the circuit breaker that is connected with following bonding conductor 8 contact separations, 8 for the rear portion that is positioned at bulk container 2 with upper and lower to the three-phase bonding conductor that sets, 9 for being assemblied in the cable socket connecting portion at bonding conductor 8 tops, 10 cable sockets that are connected with cable socket connecting portion 9 for the wall that runs through bulk container 2,11 is the cable that end insertion cable socket 10 is attached thereto.In addition, will be called major loop in the loop to cable 11 from bus 4 usually.12 for being assemblied in the CT of cable 11 peripheries, and 13 for carrying out the grounding opening-closing device of major loop ground connection with bonding conductor 8 contact separations, and 14 is lightning arrester.
As mentioned above, capital equipments such as the circuit breaker 5 of gas-insulated switchgear device, vacuum circuit-breaker 6, circuit breaker 7 and cable socket 10 are all by bonding conductor 5a, 7a and 8 and link to each other with other equipment.
Fig. 9 is the end view of vacuum circuit-breaker 6 that is used for the device of Fig. 8.Among the figure, 15 is substrate, 16 is vacuum valve, 17 is the movable electrode side terminal that is assemblied in the movable electrode side end of vacuum valve 16,18 is the fixed electrode side terminal that is assemblied in the fixed electrode side end of vacuum valve 16,19 insulating supporting bodies for supporting movable electrode side terminal 17 and fixed electrode side terminal 18,20,21 is the connection contact that is used for being connected with major loop, 22 the linkages that press for the movable electrode (not illustrating) that drives vacuum valve 16,23 for being assemblied in the operating mechanism on the substrate 15,24 for connecting the drive rod that presses linkage 22 and operating mechanism 23, and 25 for being covered in the electric field mitigation shielding case that presses the linkage periphery.
In the above-mentioned vacuum circuit-breaker 6 in the past, the drive rod 24 that is positioned at vacuum circuit-breaker 6 tops or bottom is exposed to the bulk container 2 of the gas-insulated switchgear device of taking in this drive rod 24, must guarantee that this part has insulation distance between enough chambers, become the reason that bulk container 2 must strengthen thus.Therefore, because need to strengthen bulk container 2, and have the maximization such as gas-insulated switchgear device integral body, freight increases, and increase and to cause electric panel room construction cost to increase because of the space is set, in addition because the maximization of bulk container 2 increases the medium that insulate is SF
6The problem of the use amount of gas.
The present invention makes for solving above-mentioned problem, and its purpose is to obtain the vacuum circuit-breaker of miniaturization.In addition, the objective of the invention is to obtain to dwindle and surrounding devices between the vacuum circuit-breaker of space insulation distance.Another purpose beyond this is to obtain the vacuum circuit-breaker that is easy to assemble.
Summary of the invention
(1) vacuum circuit-breaker of the present invention, can also possess: substrate, be arranged at the vacuum valve of a side of aforesaid substrate, be connected in the fixation side terminal conductor of the fixed electrode side end of vacuum valve, the contact that is connected in the movable electrode side of vacuum valve opens and closes linkage, be connected in the movable side terminal conductor of the movable electrode side of vacuum valve, be erected on the aforesaid substrate and respectively said fixing side terminal conductor and above-mentioned movable side terminal conductor distinguished a pair of insulating supporting body that is supported, aforesaid substrate is sandwiched in the middle operating mechanism that is assemblied in the opposition side of above-mentioned vacuum valve, in above-mentioned insulating supporting body inside along supporting direction assembling and connect aforesaid operations mechanism and driver part that above-mentioned contact opens and closes linkage and drives, the operating mechanism installation side of described substrate is provided with the sealed chamber that is connected with the hollow hole of the insulating supporting body that supports movable side terminal conductor, dispose lever shaft therein, its drive member to attended operation mechanism and contact switching connecting rod machine is connected and drives, and an end of action bars runs through the locular wall of described sealed chamber and is connected with operating mechanism.
(2) the fixation side terminal conductor also can possess: bump the support that connects and vacuum valve is supported with the fixed electrode side end of vacuum valve, and to this support supported and simultaneously with the open container shape to the encirclement portion that is surrounded, and and the portion of terminal of other major loop contact separations.
(3) movable side terminal conductor also can possess, with the open container shape to the contact of the movable electrode side that is connected in vacuum valve open and close linkage surrounded, with the portion of terminal of other major loop contact separations.
(4) outer peripheral face of fixation side terminal conductor and movable side terminal conductor also can be connected between Different Plane by curved surface.
(5) the two ends outer diameter part of the cylindrical portion of vacuum valve also can the fixation side terminal conductor and movable side terminal conductor covered.
(6) substrate also can constitute the part of the chamber wall of gas-insulated switchgear device.
(7) contact opens and closes linkage, also can be the linkage that presses by movable side terminal conductor supporting.
(8) insulating supporting body of the movable side terminal conductor of supporting also can be hollow tube-shape, portion's driver part of attended operation mechanism and contact switching linkage being set and driving within it.
Brief Description Of Drawings
Fig. 1 is the side cross-sectional view of taking in the gas-insulated switchgear device of vacuum circuit-breaker of the present invention.
Fig. 2 is the side cross-sectional view under the state behind the taking-up vacuum circuit-breaker from the gas-insulated switchgear device of Fig. 1.
Fig. 3 is the side cross-sectional view of the vacuum circuit-breaker of Fig. 1.
Fig. 4 is the dorsal view of the vacuum circuit-breaker of Fig. 3.
Fig. 5 is the vertical view of the vacuum circuit-breaker of Fig. 3.
Fig. 6 is the stereogram of movable electrode side terminal of the circuit breaker of Fig. 3.
Fig. 7 is for seeing the figure of bar axle of the circuit breaker of Fig. 3 from the A-A direction of Fig. 3.
Fig. 8 is the sectional view of gas-insulated switchgear device in the past.
Fig. 9 is the end view of vacuum circuit-breaker that is shown in the gas-insulated switchgear device of Fig. 8.
Embodiment
Fig. 1 to Fig. 7 has represented to use the gas-insulated switchgear device of vacuum circuit-breaker of the present invention.Among the figure, 50 is with SF
6Gas is enclosed inner bulk container as the insulation medium, 51a is the 1st bus-bar room that is arranged at above-mentioned bulk container 50 tops, 51b be and the 1st bus-bar room 51a in abutting connection with the 2nd bus-bar room of assembling, 52a, 52b are for connecting the bus that distribution becomes the gas-insulated switchgear device that the Betti number platform is set up in parallel.Among the bus-bar room 51a, go up by bolt etc. from the qi line 52b of branch of bus 52a and to be connected with circuit breaker 53.Circuit breaker 53, by make movable contact site 53a in Fig. 1 towards about action make it with fixed contact 53b between contact and separate, thereby branch's major loop is cut off connection.Fixed contact 53b is assemblied in the leading section that connects conductor 54a by bolt etc., connects conductor 54a and extends in the lining 54 that connects and be supported on the next door between bulk container 50 and bus-bar room 51a.
In the bulk container 50, be provided with the 1st grounding opening-closing device 55 by the following end bearing of the perforation conductor 54a of lining 54, lining 54 is by the next door supporting of 50 of bus-bar room 51a and bulk container.The electric field that is roughly hollow that grounding opening-closing device 55 possesses the fixed contact 55b of bulk container be located at 50, movable contact 55a that relative fixed contact 55b carries out contact separation, drive the linkage 55d of movable contact 55a and cover linkage 55d relaxes with conductivity housing 55c.The conductivity housing 55c of grounding opening-closing device 55 with connect conductor 54a mechanically, electrically directly link to each other.This direct connection can be passed through, for example, to run through the bolt (illustrate) that conductivity housing 55c extends from the inboard and screw in the bolt hole of being located at perforation conductor 54a lower end, and conductivity housing 55c be remained between the lower end of perforation conductor 54a and the bolt head realize.Movable contact 55a, (fore-and-aft direction of gas-insulated switchgear device) action to left and right direction to fixed contact 55b contact separation, is carried out the ground connection of major loop in Fig. 1.The bottom of the conductivity housing 55c of grounding opening-closing device 55, be fixed with the bonding conductor 56 that is the L font when seeing from the side by bolt etc., and being provided with the connecting portion 57 that is connected in splicing ear 82 (with reference to Fig. 3) to the front face side of bulk container in its lower end, splicing ear 82 is arranged on the portion of terminal 71a of the vacuum circuit-breaker 58 that is described in detail below in conjunction with Fig. 3 to Fig. 5.
The relevant details that is connected in the vacuum circuit-breaker 58 of grounding opening-closing device 55 by connecting portion 57 is illustrated in conjunction with Fig. 3 to Fig. 5.Vacuum circuit-breaker 58 possesses: be mounted to substrate 74, the operating mechanism 77 of being located at substrate 74 outsides that the front openings 50a to bulk container 50 covered, the insulating supporting body 75 that is installed on substrate 74 inner faces and 76 and the vacuum valve with fixed electrode and movable electrode 70 that supports by insulating supporting body 75 and the 76 fixed electrode side terminal 70a of portion and movable electrode side portion of terminal 70b.Support each portion of terminal 70a of vacuum valve 70 and fixed electrode side terminal 71 and the movable electrode side terminal 72 of 70b respectively, possess for relaxing the electric field periphery and make the electric field mitigation shell of curve form.Fixed electrode side terminal 71 and movable electrode side terminal 72 are installed on insulating supporting body 75 and 76 with suitable fixing meanss such as bolts respectively.
The movable electrode side portion of terminal 70b of the downside of vacuum circuit-breaker 58 is connected with the connector 59d of grounding opening-closing device 59 by the connector of being located at movable electrode side terminal 72, and movable electrode side terminal 72 is installed on the insulating supporting body 76 by bolt etc.Grounding opening-closing device 59 possesses because of operating axis 59c rotates the movable contact 59a that the fore-and-aft direction (about among the figure being) of bulk container 50 moves in Fig. 1, and this movable contact 59a and fixed contact 59b contact separation make major loop ground connection.Towards the front face side of bulk container 50, the movable contact side of grounding opening-closing device 59 is relaxed to hide with conductive shell 59e by electric field carries out, connector 59d be installed on this conductive shell 59e the front, join with the terminal of vacuum circuit-breaker 58.
The rear wall of bulk container 50 is provided with circuit breaker 60.Circuit breaker 60 possesses: movable contact site 60a, fixed contact 60b; In between movable contact site 60a and fixed contact 60b, in Fig. 1, carry out knee-action, major loop cut off the movable contact 60c that is connected with movable contact site 60a contact separation because of operating axis 60f rotates; And be assemblied in the insulating supporting body 60d that pedestal 60e goes up, respectively movable contact site 60a and fixed contact 60b supported.Movable contact site 60a and fixed contact 60b are relaxed by the electric field that is installed on insulating supporting body 60d and cover with conductive shell 60g and conductive shell 60h.Circuit breaker 60 because of pedestal 60e is fixed on the rear wall of bulk container 50, and is assemblied in the bulk container 50.In addition, between the conductive shell 60h of circuit breaker 60 and the conductive shell 59e of grounding opening-closing device 59, connect and be electrically connected by bolt (not illustrating).
On the rear wall of bulk container 50, be positioned at circuit breaker 60 tops, be provided with the grounding opening-closing device 61 that makes major loop ground connection by bulk container 50.Because of the rotation of operating axis 61c, movable contact 61a that in Fig. 1, to about the rear of bulk container 50, moves and fixed contact 61b contact separation and make major loop ground connection.The periphery of these grounding opening-closing device 61 operation parts is also covered by the conductive shell 61d that electric field relaxes usefulness equally with circuit breaker 60, this conductive shell 61d directly and the conductive shell 60g of circuit breaker 60 bump and connect and combine by bolt etc.
Above circuit breaker 61, also be provided with cable socket link 62.Cable socket link 62 has: contact 62a, the operating axis 62c that the front end connecting portion of the cable socket 63 that inserts with the rear wall that runs through bulk container 50 is connected, rotate and the contact lever 62b of the lower end contact separation that is installed on the lightning arrester 65 on the bulk container 50 and the electric field that covers the periphery of cable socket link 62 relax and use conductive shell 62d because of operating axis 62c.Cable 64 extends from cable socket 63.
In addition, cover conductivity housing 59e, 60g, 60h, 61d and the 62d of the periphery of grounding opening-closing device 59, circuit breaker 60, grounding opening-closing device 61 and cable socket link 62, both can be covered independently respectively the periphery of each parts as shown in the figure, also can be that the peripheral part of each equipment is handled the framework that forms through the electric field mitigation with shape.
In addition, as shown in Figure 1, grounding opening-closing device 59 uses bolt etc. to be connected with the bottom of the fixed contact 60b of circuit breaker 60 securely with the form that each conductive shell is engaged.In addition, grounding opening-closing device 61 with the form that each conductive shell is engaged use bolt etc. securely with the upper bond of the movable contact site 60a of circuit breaker 60.Cable socket connecting elements 62 uses bolt etc. to be connected with the top of grounding opening-closing device 61 securely with the form that each conductive shell is engaged.
Because of the conductive shell with grounding opening-closing device 59, circuit breaker 60, grounding opening-closing device 61 and cable socket link 62 so directly firmly links each other, so must not have the part that bonding conductor just can constitute major loop in addition, can make each equipment constitute compactization.And then, because of pedestal 60e being arranged at the bottom of circuit breaker 60,, a pedestal that can be independent forms shutter unit 66 so being combined into one grounding opening-closing device 59, circuit breaker 60, grounding opening-closing device 61.In addition, also can with on shutter unit 66 as shown in Figure 1 and Figure 2, further append into the structure of cable socket link 62 and treat as shutter unit 66.As long as removal bulk container 50 is connected with pedestal 60e's, shutter unit 66 can be used as a module units and pulls down from bulk container 50 easily.
Fig. 2 represents to remove state behind the vacuum circuit-breaker 58 from Fig. 1 state.50a is the circuit breaker installation opening of bulk container front among the figure.The direction of insertion of facing circuit breaker 58 is provided with the 1st connector 57 and the 2nd connector 59d, also is easy to install when circuit breaker 58 inserts bulk container 50.
In addition, the bottom of the position after circuit breaker 58 dismountings is not provided with any parts, and operating personnel can enter easily, the easy access operation.
In addition, make the direction of action of the circuit breaker movable contact 60c of shutter unit 66 be arranged to above-below direction, and the direction of action of movable contact 59a, 61a that makes bottom grounding opening-closing device 59 and top grounding opening-closing device 61 is towards the rear of bulk container 50, so the height that can reduce shutter unit 66 is (as its result, can dwindle bulk container 50), and can make the dismounting insertion operation of shutter unit become easy simultaneously.
Fig. 3 to Fig. 7 represents the details of vacuum circuit-breaker 58.Among the figure, 70 have the vacuum valve of movable fixed electrode for portion within it; 71 is the fixed electrode side terminal of above-mentioned vacuum valve 70, periphery is electric field and relaxes and use curve form, inside to possess as the bridge shape to be across between fixed electrode side terminal 71 left and right sides walls, to bump with the excellent 70a of fixed electrode of vacuum valve 70 fixation side ends and connect and to it support that supports.72 is the movable electrode side terminal of vacuum valve 70, periphery is electric field mitigation curve form, inside possesses as the bridge shape and is across flexible conductor coupling portion between the left and right sides wall of movable electrode side terminal 72, and the movable electrode portion of vacuum valve 70 is connected by flexible conductor 73 with this flexible conductor coupling portion 72a.
74 is the tabular substrate of a part of the sidewall of double as bulk container 50,75 is to erect to be arranged on the face of substrate, the insulating supporting body that fixed electrode side terminal 71 is supported, 76 have through hole 76a for inside, with the insulating supporting body 75 same insulating supporting bodies of erectting the supporting movable electrode side terminal 72 on the face that is arranged at aforesaid substrate 74,77 in the middle of being sandwiched in substrate 74, be assemblied in the operating mechanism of circuit breaker of the opposition side of vacuum valve 70, thereby 78 is by give as security the air-tightness action bars chamber that forms on the face of operating mechanism 77 installation sides of substrate 74 with box-shaped body, be communicated with through hole 76a by being formed at the hole 74a on the substrate.
79 for lever shaft that the actuating force of operating mechanism 77 is distributed to the movable electrode of vacuum valve 70 with each corresponding lever 79a, supported in the mode that can rotate the bearing on the substrate 74 that is assemblied in action bars chamber 78, the one end runs through the top wall of action bars chamber 78 and derives and be connected with operating mechanism 77 by action bars 77a to the outside.80 for the movable electrode rod 70b that is connected in vacuum valve 70, with the axle 80a of movable electrode side terminal 72 supportings be fulcrum rotate press linkage, possessing with axle 80a is the lever 80b that rotating shaft rotates, and an end can swing be assemblied in freely that this lever 80b, the other end be connected in movable electrode rod 70b press spring 80c.
81 for connect lever 79a and press linkage 80 lever 80b the other end and carry out driven drive rod, 82 go up, contact towards the outstanding splicing ear of circuit breaker 77 direction of insertion, with the 1st contact 57 and separate for being installed on the section part of upwards erectting of seeing the fixed electrode side terminal 71 that is the L font substantially from the side.83 for being arranged to from the bottom of movable electrode side terminal 72 towards the outstanding splicing ear of the direction of insertion of circuit breaker 77, being connected with the 2nd contact 59d.84 for being covered tube to the periphery of the pars intermedia of vacuum valve 70 with what tubular covered.
In addition, as shown in Figure 6, movable electrode side terminal 72 possesses outer surface and almost all forms conductivity electric field mitigation housing curved surface, hollow, wrapping into up and down wherein of linkage 80 will be pressed, and, because the two side is than flexible conductor 73 or press linkage 80 and more extend to the direction of insertion of circuit breaker 58, the electric field alleviation effects of this part strengthens, and can dwindle the space insulation distance between this movable electrode side terminal 72 and near the miscellaneous part on every side.Have on the movable electrode side terminal 72 and be used for by bolt it being mounted to the required flange part 72b of insulating supporting body 76, drive rod 81 runs through wherein by flange part 72b.Movable electrode side terminal 72, have the circular open 72c that holds vacuum valve 70 lower ends in addition at its top, be used for deriving and the opening 72d (Fig. 4) of other bonding conductors (the connector 59d of Fig. 1 etc.) in conjunction with the connector 83 that is connected on also electric and have in its underpart.In addition, the electric field side of relaxing housing 72a is provided with the pivot that is accommodated in inner linkage etc. is assembled the opening 72d that regulates usefulness.
Fixed electrode side terminal 71 also has the extremely similar structure that electric field relaxes housing that possesses as shown in Figure 6, by bolt in insulating supporting body 75, the upper end of covering vacuum valve 70 and to supported, and also have and make it to pass through the opening 71c that connector 82 is connected with bonding conductor (connector 57 of Fig. 1 etc.), in addition, have for relaxing the curved surface structure of electric field on every side of fixed electrode side terminal 71.
The skeleton diagram of Fig. 7 when the left side of lever shaft 79 from Fig. 3 of vacuum circuit-breaker shown in Figure 3 58 seen.Lever shaft 79 is by the rotatable supporting freely of the bearing 79d that is provided with in the air-tightness action bars chamber 78 that is installed on the substrate 74.Fixing lever 79b on this lever shaft 79, by connecting rod 79f be connected from operating mechanism 77 extended actuating strut 77a.Can keep by actuating strut 77a seal 79e and to run through action bars chamber 78 under the bubble-tight state, lever shaft 79 rotates because of operating mechanism 77.Be fixed with the arm shape spare 79a that its front end is connected with drive rod 81 separately on the lever shaft 79 in the action bars chamber 78, drive rod 81 operated by lever shaft 79 rotations.
As mentioned above, vacuum circuit-breaker 58 of the present invention for example, possesses the substrate 74 that is seal-installed on as the part of the bulk container 50 of gas-insulated switchgear device in the bulk container 50, and is located at a pair of insulating supporting body 75 and 76 of substrate 74 lateral surfaces.Also be provided with on the substrate 74 by this insulating supporting body 75 and 76 and be supported on the vacuum valve 70 of fixed electrode side terminal 71 and movable electrode side terminal 72.The substrate medial surface is provided with operating mechanism 77, between the movable electrode side terminal 72 of operating mechanism 77 and vacuum valve 70, is provided with the drive rod 81 that makes vacuum valve 70 switchings and presses linkage 80.In addition, drive rod 81 runs through the insulating supporting body 76 of supporting movable electrode side terminal 72 and extends, and is insulated supporting mass 76 and covers.
In addition, the fixed electrode side terminal 71 of vacuum valve 70 and movable electrode side terminal 72 have the connector 82 and 83 that can be connected with the main circuit conductor of gas-insulated switchgear device respectively.In addition, fixed electrode side terminal 71 and movable electrode side terminal 72 have electric field mitigation housing respectively.
Constituted as stated above, can be obtained following effect.
Because of with the through hole 76a of driver part 81 through insulating supporting body 76, example in the past that must be not as shown in Figure 8 is assemblied in drive rod 24 like that than top insulating supporting body 19 position of top more, thereby the height of circuit breaker is compared and can be reduced significantly with the formation of Fig. 8.In addition, because of having strengthened the electric field alleviation effects around fixed electrode side terminal 71 and the movable electrode side terminal 72, can dwindle each alternate or over the ground between the space insulation distance of (each and bulk container 50 between), thereby can make device formation compactization.
Further, as Fig. 1 or shown in Figure 3, the both ends of vacuum valve 70 are inserted respectively in fixed electrode side terminal 71 and the movable electrode side terminal 72, the end periphery of vacuum valve 70 is covered by fixed electrode side terminal 71 and movable electrode side terminal 72.Because of adopting such formation, thereby can obtain to relax significantly the concentrated vacuum circuit-breaker of electric field that is easy to generate the end of the vacuum valve 70 that electric field concentrates because of the junction surface that has pottery tube and metallic end plate.
As mentioned above, vacuum circuit-breaker of the present invention possesses a part as the chamber wall of gas-insulated switchgear device and is seal-installed on substrate on the said vesse wall; Be arranged at a pair of insulating supporting body on the aforesaid substrate; Have fixed electrode side terminal and movable electrode side terminal, vacuum valve on the aforesaid substrate is supported, is installed in above-mentioned two-terminal portion by above-mentioned insulating supporting body; Be arranged at the operating mechanism on the aforesaid substrate; And be connected in operator link mechanism between the above-mentioned movable electrode side terminal of aforesaid operations mechanism and above-mentioned vacuum valve, that above-mentioned vacuum valve is opened and closed, it is characterized in that, the aforesaid operations linkage extends through above-mentioned insulating supporting body, is covered by above-mentioned insulating supporting body.Therefore, can be with the vacuum circuit-breaker miniaturization, and can dwindle and surrounding devices between the space insulation distance.
The possibility that industrially is utilized
As mentioned above, the vacuum circuit breaker that the present invention relates to is as especially opening applicable to the employing gas-insulated The power switch control of pass device etc. is useful with the vacuum circuit breaker in the panel.
Claims (8)
1. a vacuum circuit-breaker is characterized in that, comprising:
Substrate;
Be arranged at the vacuum valve of described substrate one side;
Be connected in the fixation side terminal conductor of the fixed electrode side of vacuum valve;
The contact that is connected in the movable electrode side of vacuum valve opens and closes linkage;
Be connected in the movable side terminal conductor of the movable electrode side of vacuum valve;
The a pair of insulating supporting body that is erected on the described substrate, respectively described fixation side terminal conductor and described movable side terminal conductor is supported;
In the middle of described substrate is sandwiched in and be assemblied in the operating mechanism of the opposition side of described vacuum valve;
In described insulating supporting body inside along supporting direction assembling, connect that described operating mechanism and described contact open and close linkage and the driver part that drives;
The operating mechanism installation side of described substrate is provided with the sealed chamber that is connected with the hollow hole of the insulating supporting body that supports movable side terminal conductor, dispose lever shaft therein, its drive member that attended operation mechanism and contact are opened and closed the connecting rod machine is connected and drives and an end of action bars runs through the locular wall of described sealed chamber and is connected with operating mechanism.
2. vacuum circuit-breaker according to claim 1 is characterized in that, described fixation side terminal conductor possesses: with the fixed electrode side terminal butt of described vacuum valve and the support that vacuum valve is supported; This support is supported and with the encirclement portion of open container shape with its encirclement; Reach splicing ear with other major loop contact separations.
3. vacuum circuit-breaker according to claim 1, it is characterized in that described movable side terminal conductor possesses: the contact that will be connected in the movable electrode side of vacuum valve with the open container shape open and close that linkage surrounds and with other major loops contacts, the splicing ear that separates.
4. vacuum circuit-breaker according to claim 2 is characterized in that, the outer peripheral face of described fixation side terminal conductor and described movable side terminal conductor is with the curved surface that is connected to form between Different Plane with curved surface.
5. vacuum circuit-breaker according to claim 4 is characterized in that, the two ends outer diameter part of the cylindrical portion of described vacuum valve is covered by fixation side terminal conductor and movable side terminal conductor.
6. vacuum circuit-breaker according to claim 1 is characterized in that, described substrate constitutes the part of the bulk container of gas-insulated switchgear device.
7. vacuum circuit-breaker according to claim 3 is characterized in that, described contact switching linkage is the linkage that presses by movable side terminal conductor supporting.
8. vacuum circuit-breaker according to claim 1 is characterized in that the insulating supporting body that supports described movable side terminal conductor is hollow tube-shape, and portion is provided with attended operation mechanism and contact and opens and closes the driver part that linkage drives within it.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2002/010171 WO2004032169A1 (en) | 2002-09-30 | 2002-09-30 | Vacuum beaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1596453A CN1596453A (en) | 2005-03-16 |
| CN100369172C true CN100369172C (en) | 2008-02-13 |
Family
ID=32051274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028238729A Expired - Fee Related CN100369172C (en) | 2002-09-30 | 2002-09-30 | Vacuum circuit breaker |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP4246151B2 (en) |
| KR (1) | KR100554629B1 (en) |
| CN (1) | CN100369172C (en) |
| AU (1) | AU2002335467A1 (en) |
| TW (1) | TW563149B (en) |
| WO (1) | WO2004032169A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5297682B2 (en) * | 2008-04-24 | 2013-09-25 | 株式会社明電舎 | Vacuum circuit breaker |
| JP4693193B1 (en) * | 2010-05-20 | 2011-06-01 | 株式会社日本Ａｅパワーシステムズ | Cubicle type gas insulated switchgear |
| CN102262975A (en) * | 2010-05-26 | 2011-11-30 | 沈阳飞驰电气设备有限公司 | Heavy current vacuum circuit breaker |
| CN103227072A (en) * | 2012-09-11 | 2013-07-31 | 中骏电气（厦门）有限公司 | Integrated environment-friendly solid-sealed polar pole |
| CN104718675B (en) * | 2013-01-07 | 2017-08-11 | 三菱电机株式会社 | Vacuum circuit breaker |
| JP7226650B2 (en) * | 2020-12-23 | 2023-02-21 | 三菱電機株式会社 | vacuum circuit breaker |
| EP4050634B1 (en) * | 2021-02-25 | 2023-11-15 | Siemens Aktiengesellschaft | Switching device for electric power distribution |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622017A (en) * | 1979-07-25 | 1981-03-02 | Westinghouse Electric Corp | Electric device |
| JPH10247444A (en) * | 1997-03-04 | 1998-09-14 | Toshiba Corp | Gas insulation vacuum circuit breaker |
-
2002
- 2002-09-30 JP JP2004525635A patent/JP4246151B2/en not_active Expired - Fee Related
- 2002-09-30 AU AU2002335467A patent/AU2002335467A1/en not_active Abandoned
- 2002-09-30 CN CNB028238729A patent/CN100369172C/en not_active Expired - Fee Related
- 2002-09-30 KR KR1020047007918A patent/KR100554629B1/en not_active IP Right Cessation
- 2002-09-30 WO PCT/JP2002/010171 patent/WO2004032169A1/en active Application Filing
- 2002-10-04 TW TW091122968A patent/TW563149B/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5622017A (en) * | 1979-07-25 | 1981-03-02 | Westinghouse Electric Corp | Electric device |
| JPH10247444A (en) * | 1997-03-04 | 1998-09-14 | Toshiba Corp | Gas insulation vacuum circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004032169A1 (en) | 2004-04-15 |
| AU2002335467A1 (en) | 2004-04-23 |
| KR100554629B1 (en) | 2006-02-22 |
| KR20040068157A (en) | 2004-07-30 |
| JPWO2004032169A1 (en) | 2006-02-02 |
| JP4246151B2 (en) | 2009-04-02 |
| CN1596453A (en) | 2005-03-16 |
| TW563149B (en) | 2003-11-21 |
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