EP0655761A2 - Dispositif hydraulique pour la commande d'au moins un élément linéairement mobile - Google Patents

Dispositif hydraulique pour la commande d'au moins un élément linéairement mobile Download PDF

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Publication number
EP0655761A2
EP0655761A2 EP94118333A EP94118333A EP0655761A2 EP 0655761 A2 EP0655761 A2 EP 0655761A2 EP 94118333 A EP94118333 A EP 94118333A EP 94118333 A EP94118333 A EP 94118333A EP 0655761 A2 EP0655761 A2 EP 0655761A2
Authority
EP
European Patent Office
Prior art keywords
hydraulic device
piston
rail
hydraulic
hydraulic fluid
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.)
Granted
Application number
EP94118333A
Other languages
German (de)
English (en)
Other versions
EP0655761B1 (fr
EP0655761A3 (fr
Inventor
Horst Plettner
Rudi Weingärtner
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.)
ABB Patent GmbH
Original Assignee
ABB Patent GmbH
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
Application filed by ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0655761A2 publication Critical patent/EP0655761A2/fr
Publication of EP0655761A3 publication Critical patent/EP0655761A3/fr
Application granted granted Critical
Publication of EP0655761B1 publication Critical patent/EP0655761B1/fr
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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
    • 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
    • H01H33/64—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas

Definitions

  • the invention relates to a hydraulic device according to the preamble of claim 1.
  • Such a hydraulic device is used in particular to actuate the movable contact pieces of a high-voltage circuit breaker, high voltage also being understood to mean the medium-voltage range.
  • a circuit breaker can be designed as a gas-insulated, in particular SF6-insulated, as a metal-encapsulated switch or as an outdoor switch.
  • the drives for actuating each circuit breaker or the movable contact piece in each case one pole or several poles of the circuit breaker have an energy store which can be designed as a spring accumulator, the energy of which is released for actuating the movable contact piece.
  • the energy store is integrated in a hydraulic device, and the movable contact (s) are each connected to a working piston.
  • the hydraulic energy is fed on both sides to the working piston both in the room with the larger area and in the room with the smaller area, so that the piston is moved in a switching position.
  • actuating a suitable changeover valve the space, which is limited by the larger piston area, is connected to a low-pressure container, as a result of which the piston can suddenly move and move the movable contact piece into the switched-off position.
  • the object of the invention is to provide a hydraulic device of the type mentioned, which is considerably simplified compared to the known device.
  • the central distribution device is designed as a distribution rail which has a rectangular cross section and is elongated; the lines for high-pressure and low-pressure hydraulic fluid are formed by two parallel longitudinal bores within the distribution rail.
  • the distribution rail has a further advantage that it can also be used to hold the individual components at the same time.
  • the piston-cylinder arrangements d. H. the working pistons, on a first side surface, the control valves for actuating the piston-cylinder arrangements on the opposite, second side surface and the high-pressure accumulator or the pump attached to a third side surface of the distribution rail running perpendicular thereto; cross holes connected to the individual components and introduced into the distribution rail then open into the associated longitudinal holes.
  • the distribution rail is not only used to distribute the hydraulic fluid, but also to hold the individual components, so that the individual components together with the distribution rail form a preassembled unit.
  • the piston-cylinder arrangement is located between the distributor rail and the flange; the control valves are attached to the flange side of the distributor rail.
  • a further simplification of the invention can be that the individual components are of modular design and on the distribution rail with the interposition of a seal that is the same for all connections for the connecting lines leading to the high-pressure and low-pressure lines are attached. As a result, assembly and warehousing can be considerably simplified.
  • the storage space of the energy or high-pressure storage can directly adjoin the distribution rail, the end wall of the storage space opposite the larger piston surface being formed by the adjoining side wall of the distribution rail. So that the assembly at this point and the seal are simplified, the high-pressure accumulator has a collar which engages in a recess in the side wall with the interposition of a seal.
  • the distribution rail can preferably consist of aluminum. As a result, it has a relatively low weight with sufficient strength.
  • the distribution rail can be an extruded profile with prepared and made longitudinal bores, so that only the cross bores with the associated seals and other connections have to be made for further processing.
  • Adjusting slides can be introduced into the longitudinal bores or certain transverse bores, with which the flow of the hydraulic fluid within the longitudinal or transverse bores can be opposed by an adjustable resistance, so that on the one hand the movement of the working piston is adjusted and on the other hand shocks within the pressure fluid are reduced or damped can.
  • a housing 11 On a flange plate 10, against an open flange (not shown) of a metal-encapsulated, gas-insulated switchgear in the area of the circuit breaker can be screwed, a housing 11 is fixed, in which a hydraulic device for actuating the circuit breaker is arranged.
  • the flange plate 10 has openings 16 (of which only one opening is visible in FIG. 2), through which a drive linkage 17 extends, which is connected to the respective movable contact pieces of the individual circuit breaker poles.
  • the hydraulic device which, as can be seen from FIG. 3, has a distribution rail 18 which is essentially square in cross section, sits on the flange plate 10, on its flange plate-side side surface 19 in each case a working piston unit 20 and on its opposite side surface 21, which is located on the flange side, a switching valve 22 are fixed for each circuit breaker pole. Since a circuit breaker has a total of three circuit breaker poles, there are also three working piston units and three changeover valves 22a, 22b and 22c, wherein, as can be seen more clearly from FIG. 3, the individual changeover valves 22a, b and c each have an electromagnetic system 23, 24 for two breaking circuits and an electromagnet system 25 are assigned for a starting circuit.
  • Pump block 31 with connection bores 32, 33 arranged therein are each connected to a longitudinal bore 34 or 35 within the distribution rail 18.
  • the longitudinal bore 34 is connected to a low-pressure collecting tank (not shown) and the longitudinal bore 35 to an energy store (see below), so that the pump from one Low-pressure tank sucks in hydraulic fluid via the connecting line or connecting bore 32 and supplies pressure fluid to the longitudinal bore 35 via the connecting line 33.
  • Said energy store 36 which is shown in more detail in FIG. 4, is located on the side surface 26 in the area between the changeover valves 22b and 22c.
  • the storage elements 37 of the energy store are a plurality of disc springs which are connected in series one behind the other.
  • the piston 40 is arranged in a cylinder space 41, the space 41a to the left of the piston, that is to say the one with the smaller piston area, and the space 41b to the right of the piston 40 , i.e. the pressure fluid with a larger piston area on both sides.
  • the piston chamber 41 and the bore 42 which guides the piston rod 39 are accommodated in a cylinder block 43 which is fastened to the distributor rail 18, the distributor rail itself delimiting the piston chamber 41 on the side opposite the larger piston surface.
  • the cylinder block 43 has a collar-like projection 44 which delimits the piston chamber 41 and engages in a recess 45 on the side surface 26 of the distribution rail 18.
  • the collar or the collar-like projection 44 has an annular seal 46 on its outside with which a seal is produced.
  • 5 shows the longitudinal bore 34 which is connected to the low-pressure container.
  • a transverse bore 47 runs from the space 41b to the longitudinal bore 35.
  • the longitudinal bore 34 is connected to the space 41a via additional transverse bores (without reference numbers) in the distribution rail 18 and in the cylinder block 43, so that leaking oil escaping from the piston 40 is discharged to the low-pressure container becomes.
  • the seal between two components is provided by a bushing 56 that connects or separates the parting line 57 between the two parts overlaps, ring seals 58, 59 being introduced on both sides of the joint 57 in the bushing 56.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Actuator (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Chairs Characterized By Structure (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Vehicle Body Suspensions (AREA)
EP94118333A 1993-11-25 1994-11-22 Dispositif hydraulique pour la commande d'au moins un élément linéairement mobile Expired - Lifetime EP0655761B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4340142A DE4340142C2 (de) 1993-11-25 1993-11-25 Hydraulikeinrichtung zur Betätigung wenigstens eines linear beweglichen Bauteils
DE4340142 1993-11-25

Publications (3)

Publication Number Publication Date
EP0655761A2 true EP0655761A2 (fr) 1995-05-31
EP0655761A3 EP0655761A3 (fr) 1997-05-02
EP0655761B1 EP0655761B1 (fr) 1999-07-28

Family

ID=6503393

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118333A Expired - Lifetime EP0655761B1 (fr) 1993-11-25 1994-11-22 Dispositif hydraulique pour la commande d'au moins un élément linéairement mobile

Country Status (7)

Country Link
US (1) US5584180A (fr)
EP (1) EP0655761B1 (fr)
JP (1) JPH07217603A (fr)
KR (1) KR950015443A (fr)
CN (1) CN1107998A (fr)
AT (1) ATE182716T1 (fr)
DE (2) DE4340142C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19637050A1 (de) * 1996-09-12 1998-03-19 Abb Patent Gmbh Hydraulischer Antrieb
CN100474472C (zh) * 2006-01-25 2009-04-01 西安西开高压电气股份有限公司 大功率液压操动机构
DE102007062291A1 (de) * 2007-10-16 2009-04-23 Abb Technology Ag Hydraulischer Federspeicherantrieb
DE102008032143A1 (de) * 2008-07-08 2010-01-14 Abb Technology Ag Hydraulischer Federspeicherantrieb
DE102008061238B4 (de) * 2008-12-09 2010-10-28 Abb Technology Ag Vorrichtung für einen hydraulischen Antrieb für eine elektrische Schaltanlage
DE102010054665B3 (de) * 2010-12-15 2012-02-02 Abb Technology Ag Speichermodul für einen hydraulischen Federspeicherantrieb

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1423882A (fr) * 1964-11-24 1966-01-07 Commande hydraulique pour disjoncteur électrique
FR2209997A1 (fr) * 1972-12-12 1974-07-05 Merlin Gerin
US4894988A (en) * 1986-10-10 1990-01-23 Turner Electric Corporation Hydraulic system for operating switching or like devices
FR2685541A1 (fr) * 1991-12-23 1993-06-25 Alsthom Gec Commande de disjoncteur.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1037554B (de) * 1956-03-10 1958-08-28 Licentia Gmbh Hydraulisch betaetigte elektrische Mehrfach-Schalteinrichtung
DE3613747A1 (de) * 1986-04-23 1987-10-29 Concordia Fluidtechnik Gmbh 5/3-ventil
US4748897A (en) * 1986-09-05 1988-06-07 Hoge Ned W Subbase for a pneumatic control assembly for a pneumatic cylinder
JPH01281626A (ja) * 1988-05-06 1989-11-13 Meidensha Corp 開閉部の操作装置
US5018431A (en) * 1988-12-09 1991-05-28 Quadrastat Corporation Apparatus for positioning a work implement
DE59002832D1 (de) * 1989-09-28 1993-10-28 Kugelfischer G Schaefer & Co Hydraulikaggregat.
DE4000221A1 (de) * 1990-01-05 1991-07-11 Siemens Ag Verfahren zur steuerung eines ueber ein proportionalventil verstellbaren stellgliedes
DE4011445A1 (de) * 1990-04-09 1991-10-10 Abb Patent Gmbh Hydraulischer antrieb
JPH0487125A (ja) * 1990-07-27 1992-03-19 Hitachi Ltd 遮断器用操作装置
US5236057A (en) * 1990-09-07 1993-08-17 Nsk Ltd. Rear wheel steering apparatus for vehicle
JPH04126321A (ja) * 1990-09-17 1992-04-27 Hitachi Ltd 地下変電所用開閉機器
JPH05298969A (ja) * 1992-04-21 1993-11-12 Fuji Electric Co Ltd 遮断器用油圧操作器の主制御弁

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1423882A (fr) * 1964-11-24 1966-01-07 Commande hydraulique pour disjoncteur électrique
FR2209997A1 (fr) * 1972-12-12 1974-07-05 Merlin Gerin
US4894988A (en) * 1986-10-10 1990-01-23 Turner Electric Corporation Hydraulic system for operating switching or like devices
FR2685541A1 (fr) * 1991-12-23 1993-06-25 Alsthom Gec Commande de disjoncteur.

Also Published As

Publication number Publication date
EP0655761B1 (fr) 1999-07-28
KR950015443A (ko) 1995-06-16
US5584180A (en) 1996-12-17
CN1107998A (zh) 1995-09-06
DE4340142C2 (de) 1995-11-23
DE4340142A1 (de) 1995-06-01
DE59408541D1 (de) 1999-09-02
ATE182716T1 (de) 1999-08-15
EP0655761A3 (fr) 1997-05-02
JPH07217603A (ja) 1995-08-15

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