EP0843330B1 - Vakuumschalter mit Trennschalter - Google Patents

Vakuumschalter mit Trennschalter Download PDF

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Publication number
EP0843330B1
EP0843330B1 EP19970304550 EP97304550A EP0843330B1 EP 0843330 B1 EP0843330 B1 EP 0843330B1 EP 19970304550 EP19970304550 EP 19970304550 EP 97304550 A EP97304550 A EP 97304550A EP 0843330 B1 EP0843330 B1 EP 0843330B1
Authority
EP
European Patent Office
Prior art keywords
disconnector
vacuum
fitted
vacuum breaker
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19970304550
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English (en)
French (fr)
Other versions
EP0843330A2 (de
EP0843330A3 (de
Inventor
Junichi Ikeda
Osamu Sakaguchi
Masaru Miyagawa
Tomio Gou
Katsuyuki Ueda
Takafumi Nagata
Shigeo Nomiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP0843330A2 publication Critical patent/EP0843330A2/de
Publication of EP0843330A3 publication Critical patent/EP0843330A3/de
Application granted granted Critical
Publication of EP0843330B1 publication Critical patent/EP0843330B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • 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
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches

Definitions

  • This invention relates to vacuum breakers which break main circuits.
  • it concerns disconnector-fitted vacuum breakers which are provided with disconnectors which are connected in series with the vacuum breakers, and which are fitted in insulating gas chambers.
  • Fig. 10 shows an example of a gas-insulated switchgear in which is housed a prior art vacuum breaker together with a disconnector.
  • Partition 51a which divides box 51 into front and rear gas compartments, is provided vertically and slightly forward (to the left in the drawing) of the center of metal box 51 which is of hermetically sealed construction.
  • Partition 51b which is designed with a difference in level, is mounted in the horizontal direction on the upper part of the rear side of partition 51a.
  • Partition 51c is also mounted vertically on the rear end of this partition 51b.
  • Low voltage chamber 51f is constructed in front of partition 51a.
  • Front door 51d is provided at the front end of box 51, while rear door 51e is mounted at the rear end of box 51.
  • Sulphur hexafluoride gas (hereafter called “insulating gas”) is sealed between partition 51a and partition 51c.
  • Three-phase disconnector 54A is mounted on the upper part of partition 51a with its rear side connected to insulated bushings 57 via conductor 60A.
  • Disconnector unit 54a is mounted at the rear of disconnector 54A.
  • Earth disconnector 54b is assembled on the upper part of this disconnector unit 54a.
  • Beneath disconnector 54A, mechanism 55a which operates vacuum breaker 52 is provided on the front side of partition 51a and projecting through it.
  • disconnector unit 54a is connected to the upper pole of vacuum breaker 52 via insulated spacer 58 which is thrust through the bottom of partition 51b.
  • Bus chamber 64A is formed between partition 51a and partition 51c and the upper side of partition 51b.
  • Cable chamber 64C is formed on the rear side of partition 51c.
  • disconnector 54B which is connected to the lower pole of vacuum breaker 52, is mounted on the lower part of partition 51a.
  • a disconnector unit 54a and an earth disconnector unit 54b are also assembled on the rear part of this disconnector 54B.
  • Lightning arrester 53 is provided through the bottom end of partition 51a. This lightning arrester 53 is connected by a conductor to the front end of cable head 65 which is secured to the upper part of the rear side of partition 51c.
  • a pair of current transformers 56B are mounted one above the other in the center part of cable chamber 64C.
  • High-voltage bridging polyethylene cable 64 which rises from the back of the installation surface with which metal box 51 is provided, passes through these current transformers 56B.
  • 66 is a metal fitting for securing the cable.
  • the aim of this invention is to provide a disconnector-fitted vacuum breaker assembly which can be housed in multiple stages vertically in boxes and can lead to the designing of smaller-sized main distribution equipment by arranging a set of vacuum breakers and disconnectors in the horizontal plane and enabling it to perform the respective switching operation.
  • the present invention provides a disconnector-fitted vacuum breaker comprising an insulating gas chamber housing a vacuum breaker which breaks a main circuit and a disconnector fitted in series with said vacuum breaker; characterised in that said vacuum breaker comprises multiplevacuum bulbs, horizontally mounted on a slidably movable insulating frame, each vacuum bulb having one movable conductive shaft and one fixed conductive shaft, and also characterised in that said disconnector comprises first main disconnector units mounted on each fixed conductive shaft, and fixed side contacts mounted on the wall of the insulating chamber via a mounting plate, whereby said vacuum bulbs are switched by sliding the movable shaft and the disconnector is switched by linear motion of the insulating frame.
  • the vacuum breaker further comprises second main disconnector units connected to the movable conductive shafts of said vacuum bulbs.
  • the insulating frame is driven by sliding rods and the movable shaft is driven by operating rods, the rods passing through airtight shaft bearing sleeves fitted in a mounting plate.
  • the insulating frame comprises a backplate having a pair of rearwardly extending connector members connected to one set of sliding rods, an upwardly extending portion connected to another set of sliding rods, and a pair of forwardly extending flanges forming a housing for the vacuum bulbs.
  • the vacuum breaker may also comprise :
  • a main circuit disconnector may be provided on the rear end of the insulating frame which houses the vacuum bulbs and, at the same time, the vacuum bulb operating drive mechanism and the disconnector operating mechanism are assembled together in the mechanism frame Thus, it is possible to operate respectively the vacuum bulbs and the disconnector.
  • a second main circuit disconnector may be provided which is secured to the movable side of the conductive shafts of the vacuum bulbs; a mechanism frame, which is pierced by the other ends of driving rods, of each of which one end is secured to the said mounting plate, and which is secured to the other sides of the said sliding rods; disconnector unit drive mechanisms which are housed in this mechanism frame and which engage with the other ends of the driving rods, and cause the sliding rods and the insulating frame to move forwards and backwards via the mechanism frame and operating unit drive mechanisms which are housed in the mechanism frame and switch the vacuum bulbs by driving the movable shafts of the vacuum bulbs via operating rods which pass through the mounting plate.
  • the disconnector-fitted vacuum breaker may have the characteristic of the sliding rods and the operating rods passing hermetically through airtight shaft bearing sleeves which are hermetically passed through the mounting plate.
  • Fig.1 is a front elevation showing an actual configuration of a disconnector-fitted vacuum breaker of this invention.
  • Fig. 2 is an enlarged cross-section of Fig.1 at A - A.
  • Fig.3 is an enlarged cross-section of Fig.1 at B - B(Note: Between phases).
  • Fig.4 is an enlarged cross-section of Fig.1 at C - C(Note: In the center of the phase).
  • Fig. 5 is an enlarged cross-section of Fig.1 at D - D.
  • Fig. 6 is a partial enlarged detailed drawings showing the main parts of a disconnector-fitted vacuum breaker of this invention.
  • (a) is a front elevation
  • (b) is a plan
  • (c) is a right side elevation.
  • Fig. 7 is a partial enlarged detailed drawing showing part of a component of a disconnector-fitted vacuum breaker of this invention.
  • Fig. 8 is a partial enlarged oblique drawing showing part of a component of a disconnector-fitted vacuum breaker of this invention.
  • Fig.9 is a cross-section showing a second actual configuration of the disconnector-fitted vacuum breaker of this invention.
  • Fig. 10 is a drawing showing an example of a prior art disconnector-fitted vacuum breaker and the gas-insulated metal enclosed type switchgear in which this disconnector-fitted vacuum breaker is housed.
  • the vacuum bulbs are shown in the open state, the main circuit disconnector unit in the open state except in Fig.4, and the earth disconnector unit in the closed state except in Fig. 4. They are shown housed in an insulated metal enclosed type switchgear box.
  • the disconnector-fitted vacuum breaker is mounted on rectangular mounting plate 3 which is the base for this assembled disconnector-fitted vacuum breaker.
  • Mounting plate 3 is hermetically mounted on partition 18A (shown in Fig.2 ⁇ Fig.5) of the front end of an insulating gas chamber provided in an insulated metal enclosed type switchgear box (not illustrated) via O-ring 3a which is inserted into an O-ring channel formed on the outer periphery of the rear face of mounting plate 3.
  • the high voltage parts which compose the breaker units such as insulating frame 13 in which three vacuum bulbs 1 are assembled horizontally, are assembled as described later.
  • the operating mechanism parts which operate the breaker unit are assembled in mechanism frame 4 as explained below.
  • Shafts which support mechanism frame 4 and shafts which switch the vacuum bulbs, etc., are provided between mounting plate 3 and mechanism frame 4,these shafts are hermetically passed through the mounting plate 3,as described below.
  • supporting frame 10 is secured on the left side of the center front of mechanism frame 4.
  • Speed reducer-fitted first motor 2 which closes and opens the main circuit disconnector units described below, is mounted on the left side of supporting frame 10.
  • Driving screw gear 23A is press-fitted on the output shaft of motor 2 with the aid of a key which is not illustrated.
  • Supporting frames 11 are secured to both the top and the bottom of mechanism frame 4, as shown in Fig.1 and Fig.3.
  • Driving shaft 7 is passed vertically through supporting frame 10 and supporting frames 11.
  • the center part of driving shaft 7 is supported via thrust bearings which are inserted in the top and bottom of supporting frame 10. Its top and bottom are supported via radial bearings inserted in the tops and bottoms of supporting frames 11.
  • Screw gear 23B which is of slightly larger diameter than and engages with driving screw gear 23A, is press-fitted on the center part of driving shaft 7 with the aid of a key.
  • Small diameter screw gears 23C are press-fitted on both the top and bottom ends of driving shaft 7 with the aid of keys.
  • Fixed rods 21, shown in Fig. 1, Fig.2 and Fig.3 are passed in the fore and aft direction through top and bottom supporting frames 11.
  • the central parts of these fixed rods 21 pass through through-holes (shown in Fig. 3) formed in mechanism frame 4, and their rear ends are secured to mounting plate 3.
  • Screw gears 23D are supported so that they are free to rotate on the center parts of fixed rods 21 by bearings in a state in which movement in the axial direction is restricted.
  • the left sides of screw gears 23D (shown in Fig. 1) engage with the above-mentioned screw gears 23C.
  • a second motor (not illustrated), for the drive which switches the vacuum bulbs, is mounted in mechanism frame 4 via a supporting frame in a position above motor 2 in Fig. 1.
  • Main shaft 30, for driving the vacuum bulbs and shown in Fig.4, is provided transversely in the lower part of mechanism frame 4.
  • Main shaft 30 is supported via bearings (not illustrated) which are secured to the left and right of mechanism frame 4.
  • a screw gear (not illustrated) is press-fitted to the central part of main shaft 30.
  • This driving screw gear engages with the screw gear at the bottom end of a transmission shaft which is provided vertically in mechanism frame 4.
  • a screw gear is also press-fitted to the top end of this transmission shaft, and this screw gear engages with a driving screw gear press-fitted to the output shaft of the above-mentioned second motor.
  • levers 31 for each phase are secured via pins 33 to main shaft 30 in positions corresponding to couplings 28 shown in Fig4.
  • Airtight bearing sleeves 22A are secured to mounting plate 3 by keep plates (not illustrated) which hold down flanges formed on their center parts.
  • lower side short sliding rods 20B pass through mounting holes in the center parts of fixed rods 19, shown in Fig. 3, at the front ends of trapezoidal divided parts 13c which project on the left and right in front of insulating frame 13,and are secured from behind by screwed nuts.
  • Insulating frame 13 is produced by injection-moulding epoxy resin. Rectangular bulb housing plates 13a1 and 13a2, which form groove 13d which houses vacuum bulb 1, project horizontally on the rear of securing part 13b.
  • a pair of divided parts 13c are formed vertically on the lower part of the front face of securing part 13b. Also, through-hole 13e, through which vacuum bulb movable conductive shaft 1a passes, is formed in the lower part of securing part 13b.
  • a pair of metal fillers 13g1 are buried vertically at the front end of each divided parts 13c.
  • 3 sets of metal fillers 13g2 are also buried at the rear ends of vacuum bulb housing plates 13a1 and 13a2.
  • Countersunk holes are formed in the front faces of the top and bottom ends of fixed rods 19. Bolts are inserted in these countersunk holes, and rods 19 are secured to divided parts 13c by screwing these bolts into metal fillers 13g1 buried at the top and bottom of divided parts 13c of insulating frame 13.
  • a compression coil spring 35 is loosely fitted in each above-mentioned coupling 28 in Fig. 4.
  • the front end of a sliding coupling 26 is linked via a pin 26a to the rear end of each coupling 28.
  • the rear part of this sliding coupling 26 passes through airtight bearing sleeve 22A, which is inserted from the front of mounting plate 3, and is secured to the front end of insulated operating rod 25 behind this.
  • Airtight bearing sleeve 22A passes from front to rear through rectangular hole 4a, shown in Fig.1 and Fig.4, formed in mechanism frame 4.
  • the rear end of insulated operating rod 25 is secured to the front end of large diameter connecting copper rod 5.
  • the rear end of connecting copper rod 5 is connected to the front end of movable conductive shaft 1a of vacuum bulb 1 which is housed in groove 13d formed on the back of insulating frame 13.
  • Strip-shaped supporting plate 27, shown in Fig. 7, is spliced transversely to the rear face of mounting plate 3. Its top and bottom are secured to mounting plate 3 by eight bolts (not illustrated) which are inserted from the back side of securing holes 27a of supporting plate 27.
  • the loosely-fitting holes shown in Fig.3 and Fig.4 are formed in supporting plate 27 below motor 2 shown in Fig.1 in the positions of the five airtight bearing sleeves 22A.
  • countersunk holes 27b are formed in supporting plate 27 from its front side, and grooved parts 27c are formed to the left and right of its center.
  • Insulated supporting base 32 which is formed in a U-shape as shown in the oblique view in Fig.8, is spliced to the rear face of supporting plate 27. Insulated supporting base 32 is secured to supporting plate 27 by bolts (not illustrated) inserted from countersunk holes 27b formed in supporting plate 27. Each above-mentioned insulated operating rod 25 fits loosely in the center of an insulated supporting base 32.
  • Insulated supporting base 32 is formed by a rectangular base part 32a and supporting columns 32b which project from each corner of the back face of base part 32a. Meanwhile, circular through-hole 32c is formed in the center of base part 32a. Metal fillers 32d are buried in each corner of the front face of base part 32a and in the rear end of each supporting column 32b.
  • Movable side conductor 6A is provided as shown in Fig. 4 on the rear face of insulated supporting base 32. Movable side conductor 6A is secured by bolts inserted in metal fillers 32d in the rear ends of insulated supporting base 32 from countersunk holes formed in its rear face. A through-hole in which connecting copper rod 5 loosely fits is provided in movable side conductor 6A. Contact piece 6a, produced by press-punching from beryllium-copper, is installed in a groove (not illustrated) formed on the inner periphery of this through-hole. Connecting copper rod 5, while free to slide in the axial direction, is thus electrically connected to movable side conductor 6A by the contact pressure due to the elastic reciprocal force of contact piece 6a.
  • the lower end of belt-shaped copper strip 12 is connected, as shown in Fig.4, to the upper part of the front face of movable side conductor 6A.
  • the rear end of insulating rod 16, in which metal fillers are secured to both ends, is secured to the front side of the upper end of copper strip 12.
  • the front end of insulating rod 16 is secured to the upper part of mounting plate 3.
  • contact 14 for the main circuit disconnector is secured to the rear end of support 12a which projects from the rear face of copper strip 12.
  • Copper strip 15 normally engages with the rear part of contact 14.
  • support insulator 29, shown by single-dot chain lines, is shown in the state in which its top is mounted on mounting metal fitting 18C of the metal box.
  • Fixed side conductor 6B is provided, as shown in Fig.2, Fig.3, Fig.4 and Fig.5, on the rear faces of vacuum bulb housing plates 13a1 and 13a2 which are formed at the top and bottom of the back of insulating frame 13. Fixed side conductor 6B is secured by bolts to metal fillers 13g2 buried in the rear ends of insulating frame 13. Fixed side conductor 6B is connected to fixed side conductive shaft 1b of vacuum bulb 1. Disconnector movable side contact base 8 is secured to its rear face. Multiple movable side contact pieces 8a project in a ring-shape on the back of movable side contact base 8.
  • Small airtight bearing sleeve 22B is press-fitted and secured in the front of mounting plate 3 slightly above the center of the left end, as shown in Fig.1 and Fig.5.
  • Manual shaft 38 is provided through airtight bearing sleeve 22B.
  • Tab 38a is press-fitted on the front end of manual shaft 38 with the aid of a key (shown by broken lines).
  • Small diameter bevel gear 24A is press-fitted with the aid of a key (not illustrated) on the rear end of manual shaft 38.
  • Supporting plate 39a which is formed in a L-shape as shown in Fig.2, is provided on the left side of bevel gear 24A. Its front end is secured to the rear face of mounting plate 3. Supporting plates 39a are mounted symmetrically, as shown by the broken lines in Fig.1 and the solid lines in Fig.2, on both the left side and the right side of the center part of mounting plate 3.
  • the base ends of a pair of earthing blades 17, shown in Fig.2 as L-shaped and in Fig.4 and Fig.5 as rectangular, are secured to main earthing shaft 39.
  • the tips of earthing blades 17 face the lower ends of earthing terminal plate 40 which is brazed to the lower front face of copper strip 12.
  • Main earthing shaft 39 is connected via an earth conductor which is not illustrated to an earth bus provided transversely in the bottom of the metal box.
  • the switching of vacuum bulb 1 is performed by the forward and reverse rotation of the second motor (not illustrated) which is mounted on the upper left side of mechanism frame 4. That is to say, it is closed by movable conductive shaft 1a traveling backward when main shaft 30 shown in Fig.4 is driven clockwise, and it is opened by movable conductive shaft 1a traveling forward when main shaft 30 is driven anticlockwise.
  • sliding rods 20A and 20B which are secured to the front end of mechanism frame 4, are simultaneously pushed backward.
  • insulating frame 13 which is secured to the rear ends of sliding rods 20A and 20B, is driven backward.
  • the main circuit disconnector unit composed by movable side contact pieces 8a and movable side contact base 8 is connected or broken by linear motion forwards and backwards. Therefore, its composition is simple and it is possible to reduce the size of its external configuration.
  • copper strip 12 is arranged at a right angle to the axial line of vacuum bulb 1, avoiding other copper strips, etc., inside the metal box in which this disconnector-fitted vacuum breaker is housed. Therefore, the degree of freedom in positioning other devices and copper strips inside the metal box can be increased.
  • the space for housing a disconnector-fitted vacuum breaker which includes this interlock can be greatly reduced when compared with the space inside gas-insulated switchgear taken up by both the vacuum breaker and the disconnector previously described in Fig.10. It can be housed in multiple stages vertically in relation to the inside of the box. Therefore, the floor area for installing gas-insulated metal enclosed type switchgear can be reduced. Also, in the case of providing insulated bushings in the sides of the box, which are passed through the box, connection work between boxes becomes easier. Therefore, in particular, in cases such as installation in the low-ceilinged underground switch rooms of large buildings in cities, the requirements of the users can be met.
  • Fig.9 is a vertical cross-section showing a second actual configuration of this invention. This drawing corresponds to Fig.4 which shows the first actual configuration.
  • the points which differ from Fig.4 are that the structure of contact 14 of the main circuit disconnector above vacuum bulb 1 is composed of the same components as movable side contact base 8 and movable side contact pieces 8a of the vacuum bulb side, and that this contact can make and break contact with copper strip 15 at the same time as movable side contact pieces 8a.
  • the remainder is identical to Fig.4. Consequently, components which are the same as in Fig.4 have been given the same symbols and their descriptions have been omitted.
  • the front end of insulating pedestal 33 which is formed roughly in a Z-shape is secured to the central part of the top end rear face of mounting part 13b which projects from the top of insulating frame 13.
  • the bottom of supporting metal fitting 34 which is formed in a U-shape in plan view (not illustrated) is secured to the rear end face of insulating pedestal 33.
  • the brazed part of the front end of flexible conductor 35 which is formed in a rough U-shape, is secured to the back of the upper end of copper strip 12.
  • the brazed part of the rear end of flexible conductor 35 is secured to the back face of supporting metal fitting 34.
  • Flexible conductor 35 is a laminate of thin soft copper plates bent in a U-shape, with end plates laminated on the outsides of both ends, while both ends are brazed.
  • Movable side contact base 36 and movable side contact pieces 36a are secured to the end face of the rear side of flexible conductor 35.
  • Copper strip 15B is shown arranged on the gas-insulated metal enclosed type switchgear box, on the lower end of insulator 29.
  • An insulating frame which houses multiple vacuum bulbs horizontally is secured on the one side of multiple sliding rods which are passed through from one side of a mounting plate.
  • Main circuit disconnector units which are connected to the fixed side conductive shafts of the vacuum bulbs are secured to the rear end of this insulating frame.
  • a mechanism frame through which passes the other side of a driving rod of which one side is secured to the mounting plate, is secured to the other sides of the sliding rods.
  • a disconnector unit drive mechanism which causes the sliding rods and the insulating frame to move forwards and backwards via the other side of the driving rod and the mechanism frame, is housed in the mechanism frame.
  • An operating unit drive mechanism which drives the movable shafts of the vacuum bulbs via an operating rod which is passed through the mounting plate and thus opens and closes the vacuum bulbs, is housed in the mechanism frame.
  • the vacuum bulb operating unit drive mechanism and the disconnector unit drive mechanism are assembled as one in the mechanism frame.
  • the vacuum bulbs are arranged horizontally. Therefore, multiple disconnector-fitted vacuum breakers can be housed in multiple stages vertically in metal boxes. Thus, it is possible to obtain disconnector-fitted vacuum breakers which will enable size reduction of main distribution equipment.
  • An insulating frame which houses multiple vacuum bulbs horizontally is secured on the one sides of multiple sliding rods which are passed through from one side to the other of a mounting plate.
  • First main circuit disconnector units which are connected to the fixed side conductive shafts of the vacuum bulbs are secured to the rear end of this insulating frame.
  • Second main circuit disconnector units are provided which are secured to the insulating frame and are connected to the movable side conductive shafts of the vacuum bulbs.
  • a disconnector unit drive mechanism which causes the sliding rods and the insulating frame to move forwards and backwards via the other side of the driving rod and the mechanism frame, is housed in the mechanism frame.
  • An operating rod drive mechanism which drives the movable shafts of the vacuum bulbs via an operating rod which is passed through the mounting plate and thus opens and closes the vacuum bulbs, is housed in the mechanism frame. Therefore, multiple disconnector-fitted vacuum breakers can be housed in multiple stages vertically in metal boxes. Thus, it is possible to obtain disconnector-fitted vacuum breakers which will enable size reduction of main distribution equipment. At the same time, it is possible to obtain disconnector-fitted vacuum breakers which will enable simultaneous closing and opening of the power source side and load side circuits of vacuum bulbs.

Claims (4)

  1. Vakuumschalter mit Trennschalter, umfassend eine Isolationsgaskammer, in der ein Trennschalter untergebracht ist, der einen Hauptschaltkreis trennt und die einen Vakuumschalter aufnimmt, der in Reihe angeordnet mit dem Vakuumschalter verbunden ist;
    dadurch gekennzeichnet, daß der Vakuumschalter eine Vielzahl Vakuumkolben (1) umfaßt, die horizontal an einem gleitverschieblichen Isolationsgestell (13) befestigt sind, wobei jeder Vakuumkolben (1) eine bewegliche leifähige Welle (1a) und eine ortsfeste leitfähige Welle (1b) aufweist,
    und daß der Vakuumschalter eine erste Hauptvakuumschaltereinheit (8, 8a) aufweist, die auf jeder ortsfesten leitfähigen Welle (1b) befestigt ist, und ortsfeste Seitenkontakte (9a) an einer Wand des Isolationsgestells über Befestigungsplatten (18b) befestigt sind, wobei die Vakuumkolben (1) durch Verschieben der beweglichen Welle (1a) geschaltet werden und der Vakuumschalter durch eine lineare Bewegung des Isolationsgestells geschaltet wird.
  2. Vakuumschalter mit Trennschalter nach Anspruch 1, weiter umfassend zweite Hauptvakuumschaltereinheiten, die mit den beweglichen leitfähigen Wellen (1a) der Vakuumkolben verbunden sind.
  3. Vakuumschalter mit Trennschalter nach Anspruch 1 oder 2, bei dem das Isolationsgestell durch Schubstangen (20a, 20b) angetrieben ist und eine bewegliche Welle durch Steuerstangen (26) angetrieben ist, wobei die Stangen durch luftdichte Wellenlagerbuchsen (22a) geführt sind, die in der Befestigungsplatte (3) befestigt sind.
  4. Vakuumschalter mit Trennschalter nach einem der Ansprüche 1 bis 3, bei dem das Isolationsgestell eine Rückseitenplatte (3b, 13b) umfaßt, die ein Paar sich rückwärts erstreckender Kontaktmittel (13c) aufweist, die mit einem Satz Schubstangen (20b) verbunden sind, wobei ein sich aufwärts erstreckender Abschnitt (13b) mit einem anderen Satz Schubstangen (20a) verbunden ist, und ein Paar sich vorwärts erstreckender Flansche (13a1, 13a2) ein Gehäuse für die Vakuumkolben bildet.
EP19970304550 1996-11-15 1997-06-26 Vakuumschalter mit Trennschalter Expired - Lifetime EP0843330B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8304522A JPH10144188A (ja) 1996-11-15 1996-11-15 断路器付真空遮断器
JP304522/96 1996-11-15
JP30452296 1996-11-15

Publications (3)

Publication Number Publication Date
EP0843330A2 EP0843330A2 (de) 1998-05-20
EP0843330A3 EP0843330A3 (de) 1999-03-03
EP0843330B1 true EP0843330B1 (de) 2004-10-06

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Application Number Title Priority Date Filing Date
EP19970304550 Expired - Lifetime EP0843330B1 (de) 1996-11-15 1997-06-26 Vakuumschalter mit Trennschalter

Country Status (4)

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EP (1) EP0843330B1 (de)
JP (1) JPH10144188A (de)
DE (1) DE69731058T2 (de)
MY (1) MY123118A (de)

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DE10354595B4 (de) * 2003-11-21 2005-09-22 Abb Technology Ag Spindelantrieb für einen Trenn- und/oder Erdungsschalter
US7186942B1 (en) * 2006-02-23 2007-03-06 Eaton Corporation Three-position vacuum interrupter disconnect switch providing current interruption, disconnection and grounding
JP4906892B2 (ja) 2009-08-12 2012-03-28 株式会社日立製作所 スイッチギヤ
CN104134555B (zh) * 2013-07-16 2017-06-30 国家电网公司 断路器用操动机构及使用该操动机构的断路器
CN104505301B (zh) * 2014-11-11 2017-04-19 江苏南瑞帕威尔电气有限公司 一种户内真空断路器弹簧操动机构
EP3032666B1 (de) * 2014-12-12 2019-09-11 ABB Schweiz AG Druckdurchführung für gasisolierte Mittelspannungsschaltanlage
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CN106783353A (zh) * 2016-11-28 2017-05-31 唐恩(厦门)电气有限公司 一种隔离开关的操作机构
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DE69731058D1 (de) 2004-11-11
EP0843330A2 (de) 1998-05-20
DE69731058T2 (de) 2005-02-17
JPH10144188A (ja) 1998-05-29
EP0843330A3 (de) 1999-03-03
MY123118A (en) 2006-05-31

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