EP0332145B1 - Steuervorrichtung eines Lastschalters - Google Patents

Steuervorrichtung eines Lastschalters Download PDF

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Publication number
EP0332145B1
EP0332145B1 EP89104014A EP89104014A EP0332145B1 EP 0332145 B1 EP0332145 B1 EP 0332145B1 EP 89104014 A EP89104014 A EP 89104014A EP 89104014 A EP89104014 A EP 89104014A EP 0332145 B1 EP0332145 B1 EP 0332145B1
Authority
EP
European Patent Office
Prior art keywords
spring
cylinder
cylindrical body
frame
piston
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
EP89104014A
Other languages
English (en)
French (fr)
Other versions
EP0332145A1 (de
Inventor
Michel Perret
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.)
Alstom Holdings SA
Original Assignee
GEC Alsthom SA
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 GEC Alsthom SA filed Critical GEC Alsthom SA
Priority to AT89104014T priority Critical patent/ATE92669T1/de
Publication of EP0332145A1 publication Critical patent/EP0332145A1/de
Application granted granted Critical
Publication of EP0332145B1 publication Critical patent/EP0332145B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence

Definitions

  • the present invention relates to a circuit breaker control device, of the type comprising a tripping spring and a latching spring.
  • a motor supplies energy to a latching spring.
  • the engagement spring then supplies part of its energy to a release spring; this energy transfer requires the presence of various mechanical organs and in particular a cam which at the end of energy transfer, must be erased to allow the subsequent operation of the trigger spring.
  • An object of the invention is to provide a control device in which the majority of the parts has a common axis of symmetry, which provides advantages in terms of economy of construction and assembly.
  • FIG. 1 there is a movable part 1 comprising a rod 1A connected to the control rod not shown of the circuit breaker to be controlled.
  • the movable part further comprises a cylinder 1B, of internal diameter D1, provided with an outer ring 1C serving to support a first end of a spring 2 which constitutes the trigger spring.
  • the other end of the spring rests on a frame 3 serving also of guide piece for the cylinder 1B and the rod 1A.
  • a crown 1D on the rod 1A serves as an end-of-travel stop for the movable part during the tripping phase of the circuit breaker.
  • a part 4 which comprises a body of revolution consisting of a cylindrical body having two coaxial cylindrical portions 4A, 4'A and a piston 4B.
  • the piston 4B defines with the cylinder 1B a variable volume V1.
  • the piston is sealed using a sliding seal 5.
  • the cylindrical portion 4A is guided by a fixed part 7 secured to the frame of the device and carrying a crown 7A sliding in the cylindrical portion 4'A and serving firstly to support a first end of a second spring 8 and on the other hand for sealing tight to the volume V2 delimited by the cylindrical portion 4A and the piston 4B.
  • the diameter D2 of the crown 7A is equal to the internal diameter D1 of the cylinder 1B.
  • the diameter of the cylindrical portion 4′A is greater than that of the cylindrical portion 4A.
  • the seal is ensured by a seal 9.
  • the spring 8 is the engagement spring; its second end rests on the piston 4B.
  • the piston 4B has an opening 10 which can be closed by a valve 11 pushed by a spring 12 resting on the fixed part 7 and guided by a rod 11A sliding in the part 7 in leaktight manner thanks to a seal 7B.
  • the piston 4B further comprises a valve 13 allowing passage from volume V2 to volume V1 and preventing passage in the opposite direction.
  • the volumes V1 and V2 are filled with a liquid 6 such as cylinder oil.
  • control device The operation of the control device is described below.
  • the trigger spring is relaxed (the circuit breaker is open) and the stop 1D is supported on the frame; the volumes V1 and V2 are filled with liquid, the valve 11 is closed by pressing the spring 12; the interlocking spring 8 is bandaged and the cylindrical portion 4A is maintained by the attachment of the electromagnet 20.
  • the electromagnet 20 which releases the pin 4C is actuated, the spring 8 expands (FIG. 2) and pushes the piston 4B which, by relying on the liquid of the volume V1, drives the moving part 1 which causes the drive of the rod 1A (closing of the circuit breaker) and the compression of the trigger spring 2.
  • the spring 12 pressed the valve against its seat, thus ensuring the tightness of the volume V1.
  • the stroke of the valve 11 is less than the compression stroke of the spring 8; as soon as the stroke of the valve 11 is finished, by contacting an end-of-stroke stop 11A against the fixed part 7, the opening 10 is released and the liquid of the volume V1 passes into the volume V2. The passage is accelerated thanks to the vacuum created under the piston 4B.
  • the oil has completely filled volume V2. Its surface 22 is surmounted by a vacuum height H equal to the stroke of the piston, itself equal to the stroke of the rod 1A.
  • the electromagnet 18 is actuated and releases the attachment of the stop 1C.
  • the spring 2 relaxes and drives the movable part 1 secured to the operating rod of the circuit breaker.
  • the cam 16 drives the stop 4D causing the part 4 to move with compression of the springs 8 and 12 until the part 4 is hooked by its stop 4C to the electromagnet 20.
  • valve 11 is again pressed against its seat, the liquid passing from the volume V2 to the volume V1 by the valve 13.
  • the circuit breaker In the position of FIG. 5, the circuit breaker is ready to carry out an open-close-open cycle (OFO), the first opening taking place as described with reference to FIG. 4, the closing being carried out as described with reference to the figures. 2 and 3, the second opening operating as described with reference to FIG. 4.
  • OFO open-close-open cycle
  • the device of the invention achieves the goals set and in particular a simple and reliable construction and high efficiency.
  • the device can be coupled to the mechanical energy storage device with low latching force described in French patent application No. 87 03 037 filed March 17, 1987 in the name of the applicant.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Electronic Switches (AREA)

Claims (4)

  1. Mechanische Steuervorrichtung für einen Trennschalter mit einer Einschaltfeder (8) und einer Auslösefeder (2), wobei die Einschaltfeder (8) eine größere Federkraft als die Auslösefeder (2) besitzt, mit hydraulischen Mitteln, um einen Teil der Energie der Einschaltfeder (8) auf die Auslösefeder (2) zu übertragen, und mit einem bezüglich eines festen Gerüsts (3) beweglichen Bauteil (1), das eine Stange (1A) enthält, die mit einem Betätigungsgestänge des Trennschalters verbunden ist, dadurch gekennzeichnet, daß die Stange (1A) koaxial von einem Zylinder (1B) verlängert ist, der von einem Kolben (4B) verschlossen wird, wobei der Kolben auf der der Stange (1A) abgewandten Seite und koaxial zu dieser Stange in einem zylindrischen Körper (4A, 4'A) übergeht, der dicht um einen mit dem Gerüst (3) fest verbundenen Kragen (7A) herum gleiten kann, wobei die Auslösefeder (2) den Zylinder (1B) umgibt und sich einerseits auf dem Gerüst (3) und andererseits auf einem Kranz (1C) abstützt, der fest mit dem Zylinder (1B) verbunden ist, während die Einschaltfeder (8) in dem zylindrischen Körper (4A, 4'A) liegt und sich einerseits auf dem Kolben (4B) und andererseits au dem Kragen (7A) des Gerüsts (3) abstützt, wobei die Innenvolumina (V1, V2) des Zylinders (11) und des zylindrischen Körpers (4A, 4'A) mit einer Flüssigkeit (6) gefüllt sind und miteinander einerseits über eine durch ein Ventil (11) verschließbare Öffnung (10) im Kolben (4B) und andererseits über eine Rückschlagklappe (13) in Verbindung treten können, die den Durchgang der Flüssigkeit nur in Richtung vom zylindrischen Körper (4A, 4'A) zum Zylinder (1B) zuläßt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der zylindrische Körper einen zylindrischen Abschnitt (4'A) enthält, in dem der mit dem Gerüst (3) fest verbundene Kragen (7A) gleitet und dessen Innendurchmesser (D2) gleich dem Innendurchmesser (D1) des Zylinders (1B) ist.
  3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Ventil (11) im zylindrischen Körper (4A, 4'A) angeordnet ist und der Ventilkörper von einer sich auf einem feststehenden Bereich des Gerüsts (3) abstützenden Feder (12) gegen seinen Sitz gedrückt wird, wobei der Hub dieser Feder (12) geringer als der des Kolbens (4B) ist, so daß am Ende des Schließens des Trennschalters das Ventil die Öffnung freigibt.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Zylinder (1B) und der zylindrische Körper (4A, 4'A) Anschlagmittel (1C, 4C) aufweisen, die mit Steuerorganen (18, 20) zusammenwirken, wobei der Kranz (1C) des Zylinders (1B) eines der Anschlagmittel bildet, und daß der zylindrische Körper (4A, 4'A) einen Vorsprung (4D) aufweist, der mit Spannorganen (15, 16) zusammenwirkt.
EP89104014A 1988-03-09 1989-03-07 Steuervorrichtung eines Lastschalters Expired - Lifetime EP0332145B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104014T ATE92669T1 (de) 1988-03-09 1989-03-07 Steuervorrichtung eines lastschalters.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8803028 1988-03-09
FR8803028A FR2628566A1 (fr) 1988-03-09 1988-03-09 Dispositif de commande d'un disjoncteur

Publications (2)

Publication Number Publication Date
EP0332145A1 EP0332145A1 (de) 1989-09-13
EP0332145B1 true EP0332145B1 (de) 1993-08-04

Family

ID=9364087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89104014A Expired - Lifetime EP0332145B1 (de) 1988-03-09 1989-03-07 Steuervorrichtung eines Lastschalters

Country Status (8)

Country Link
US (1) US4952759A (de)
EP (1) EP0332145B1 (de)
JP (1) JPH01265418A (de)
AT (1) ATE92669T1 (de)
CA (1) CA1307308C (de)
DE (1) DE68907955T2 (de)
ES (1) ES2041858T3 (de)
FR (1) FR2628566A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2025453A6 (es) * 1990-07-26 1992-03-16 Pujol & Tarago Dispositivo autorregulador hidraulico para cables de mando de embragues.
CN102354635B (zh) * 2011-08-31 2014-01-22 张明军 大功率液压操动机构
DE102013203557A1 (de) * 2013-03-01 2014-09-04 Siemens Aktiengesellschaft Verfahren zur Erzeugung einer Relativbewegung sowie Vorrichtung zur Durchführung des Verfahrens
JP5418715B1 (ja) * 2013-07-30 2014-02-19 株式会社安川電機 開閉器
JP6417242B2 (ja) * 2015-03-06 2018-10-31 株式会社日立製作所 開閉装置用駆動装置
DE102019205576B4 (de) * 2019-04-17 2023-02-02 Siemens Energy Global GmbH & Co. KG Auslösevorrichtung für eine elektrische Schalteinrichtung und eine elektrische Schalteinrichtung mit einer solchen Auslösevorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH566639A5 (de) * 1973-11-19 1975-09-15 Bbc Brown Boveri & Cie
US4387280A (en) * 1978-05-29 1983-06-07 General Electric Company High speed hydraulically-actuated operating system for an electric circuit breaker
GB2027160B (en) * 1978-06-14 1983-03-23 Secoh Giken Kk Hydraulic piston-cylinder damper
SE424483B (sv) * 1980-11-27 1982-07-19 Asea Ab Dempdon for elektriska brytare
DE3140800A1 (de) * 1981-10-14 1983-04-21 Alfred Teves Gmbh, 6000 Frankfurt Elektrohydraulische schaltvorrichtung
US4424952A (en) * 1982-03-31 1984-01-10 Waltec Inc. Metering unit
GB2191843B (en) * 1986-06-12 1989-12-20 Hollingsworth Uk Ltd Vibration damper

Also Published As

Publication number Publication date
CA1307308C (fr) 1992-09-08
ATE92669T1 (de) 1993-08-15
ES2041858T3 (es) 1993-12-01
US4952759A (en) 1990-08-28
EP0332145A1 (de) 1989-09-13
JPH01265418A (ja) 1989-10-23
DE68907955D1 (de) 1993-09-09
FR2628566A1 (fr) 1989-09-15
DE68907955T2 (de) 1993-11-11

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