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EP0541078A2 - Interrupteur polyphasé à haute tension - Google Patents

Interrupteur polyphasé à haute tension Download PDF

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Publication number
EP0541078A2
EP0541078A2 EP92118932A EP92118932A EP0541078A2 EP 0541078 A2 EP0541078 A2 EP 0541078A2 EP 92118932 A EP92118932 A EP 92118932A EP 92118932 A EP92118932 A EP 92118932A EP 0541078 A2 EP0541078 A2 EP 0541078A2
Authority
EP
European Patent Office
Prior art keywords
breaker
poles
circuit breaker
phase
crank lever
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
EP92118932A
Other languages
German (de)
English (en)
Other versions
EP0541078A3 (en
EP0541078B1 (fr
Inventor
Ulf Akesson
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 AB
Original Assignee
Asea Brown Boveri AB
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 Asea Brown Boveri AB filed Critical Asea Brown Boveri AB
Publication of EP0541078A2 publication Critical patent/EP0541078A2/fr
Publication of EP0541078A3 publication Critical patent/EP0541078A3/en
Application granted granted Critical
Publication of EP0541078B1 publication Critical patent/EP0541078B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle
    • H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the AC cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing

Definitions

  • the invention relates to a polyphase, preferably three-phase, high-voltage circuit breaker according to the precharacterising part of claim 1.
  • the invention relates to a device for synchronous closing or opening of such a breaker.
  • synchronous closing or opening is meant that a defined time-lag between the instants of closing or opening of the breaker's poles (breaker units) in the different phases is obtained.
  • the instants of closing or opening of the breaker units are usually selected in relation to the phase position of voltage or current in the respective phase.
  • the invention aims at developing a polyphase, preferably threephase, high-voltage circuit breaker of the afore-mentioned kind arranged for synchronous closing or opening, which in comparison with corresponding prior art circuit breakers is less expensive and more reliable.
  • the invention suggests a polyphase, preferably threephase, high-voltage circuit breaker according to the introductory part of claim 1, which is characterized by the features of the characterizing part of claim 1.
  • the circuit breaker according to the invention is designed for polyphase operation with an operating device, in which the time-lag between the instants of contact make or contact break in different phases is also brought about by mechanical means which links up contacts and operating device.
  • mechanical means which links up contacts and operating device.
  • a considerable simplification of the mentioned mechanical means is achieved by the use of a rotary shaft which is common to all the breaker poles and which, via only one crank lever and an electrically insulating operating rod, is connected to the movable contact in the respective pole (breaker unit).
  • the drawing schematically shows, in perspective, an embodiment of a threephase high-voltage circuit breaker according to the invention.
  • the contacts and operating mechanism in the three poles (breaker units) of the circuit breaker are intended to be switched into a respective one of the phases R, S, T in a high-voltage network.
  • the breaker may, for example, be an SF6 circuit breaker of the kind described in ASEA Journal 1983, No. 3, pp. 16-21, and it is intended for three-pole operation, that is, the movable contacts in the three poles of the circuit breaker are mechanically connected to a common operating device.
  • Each breaker pole comprises one fixed contact 1 and one rod-shaped or tubular, axially movable contact 2.
  • the movable contact 2 is connected via an electrically insulating operating rod 3 and a crank lever 4, to a shaft 5, which is common to all the poles.
  • the current path through the circuit breaker passes via the fixed contact 1, the movable contact 2 and a sliding contact 6.
  • a guide bearing 7 is provided for alignment of the movable contact.
  • the operating shaft 5 is connected via a crank lever 8 and an operating rod 9, to an operating device which is able to rotate the operating shaft through a certain angle ⁇ . Opening of the circuit breaker is performed by displacing the rod 9 downwards (direction of arrow D), and closing is performed by displacing the rod upwards (direction of arrow E).
  • the movable contact 2 then moves between the closed position, where the contact tip lies on the line C, and the open position, where the contact tip lies on the line A.
  • the position of the contact tip at the instant of contact make or contact break is marked in the drawing by the line B.
  • the operating device For synchronous closing of the circuit breaker, the operating device receives a closing impulse from an electronic control device which may be of conventional design. The operating shaft 5 is then rotated to the closed position. With knowledge of the closing time of the circuit breaker, the closing impulse can be chosen such that synchronous closing of the contacts in phases R, S, and T is obtained. Since the operating system in the three poles is mechanically connected through the operating shaft 5, a distinct time difference upon contact make or contact break between the three breaker units is always ensured. The time difference can be arbitrarily chosen by a suitable choice of the angles ⁇ R , ⁇ S and ⁇ T between the respective crank lever when the circuit breaker is in the closed position and the direction of movement of the movable contact.
  • ⁇ R is greater than ⁇ S , which in turn is greater than ⁇ T .
  • crank levers 4 are suitably fixed to the shaft 5 by splines, whereby the angles ⁇ R , ⁇ S and ⁇ T can be easily adapted to the use of the circuit breaker.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Circuit Breakers (AREA)
EP19920118932 1991-11-08 1992-11-05 Interrupteur polyphasé à haute tension Expired - Lifetime EP0541078B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9103300A SE468872B (sv) 1991-11-08 1991-11-08 Trepolig hoegspaenningsbrytare
SE9103300 1991-11-08

Publications (3)

Publication Number Publication Date
EP0541078A2 true EP0541078A2 (fr) 1993-05-12
EP0541078A3 EP0541078A3 (en) 1993-09-22
EP0541078B1 EP0541078B1 (fr) 1996-07-31

Family

ID=20384271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920118932 Expired - Lifetime EP0541078B1 (fr) 1991-11-08 1992-11-05 Interrupteur polyphasé à haute tension

Country Status (4)

Country Link
EP (1) EP0541078B1 (fr)
DE (1) DE69212563T2 (fr)
ES (1) ES2092616T3 (fr)
SE (1) SE468872B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663675A1 (fr) * 1994-01-12 1995-07-19 Gec Alsthom T&D Ag Interrupteur multipolaire pour en- ou déclenchementéchelonné
FR2760125A1 (fr) * 1997-02-27 1998-08-28 Gec Alsthom T & D Sa Commutateur pour sectionneur a cinq poles a usage inverseur de phases

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH337907A (de) * 1955-03-08 1959-04-30 Sprecher & Schuh Ag Mehrpoliger Trennschalter
EP0094858A1 (fr) * 1982-05-10 1983-11-23 Merlin Gerin Dispositif de commande des pôles d'un disjoncteur multipolaire haute tension
EP0197339A1 (fr) * 1985-03-27 1986-10-15 BBC Brown Boveri AG Interrupteur à haute tension avec résistance de fermeture
DE3810453A1 (de) * 1987-04-09 1988-10-27 Asea Brown Boveri Mehrphasiger hochspannungsschalter
US4788392A (en) * 1986-12-30 1988-11-29 Hitachi, Ltd. Tank type gas circuit breaker

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH337907A (de) * 1955-03-08 1959-04-30 Sprecher & Schuh Ag Mehrpoliger Trennschalter
EP0094858A1 (fr) * 1982-05-10 1983-11-23 Merlin Gerin Dispositif de commande des pôles d'un disjoncteur multipolaire haute tension
EP0197339A1 (fr) * 1985-03-27 1986-10-15 BBC Brown Boveri AG Interrupteur à haute tension avec résistance de fermeture
US4788392A (en) * 1986-12-30 1988-11-29 Hitachi, Ltd. Tank type gas circuit breaker
DE3810453A1 (de) * 1987-04-09 1988-10-27 Asea Brown Boveri Mehrphasiger hochspannungsschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0663675A1 (fr) * 1994-01-12 1995-07-19 Gec Alsthom T&D Ag Interrupteur multipolaire pour en- ou déclenchementéchelonné
US5510590A (en) * 1994-01-12 1996-04-23 Gec Alsthom T&D Ag Multipole switch with common polyphase operating mechanism characterized by staggered connection or disconnection
FR2760125A1 (fr) * 1997-02-27 1998-08-28 Gec Alsthom T & D Sa Commutateur pour sectionneur a cinq poles a usage inverseur de phases
EP0863524A1 (fr) * 1997-02-27 1998-09-09 Gec Alsthom T & D Sa Commutateur pour sectionneur à cinq poles à usage d'inverseur de phases
US5936213A (en) * 1997-02-27 1999-08-10 Gec Alsthom T & D Sa Operating mechanism for a five-pole phase inverter isolating switch

Also Published As

Publication number Publication date
DE69212563D1 (de) 1996-09-05
SE9103300L (sv) 1993-03-29
EP0541078A3 (en) 1993-09-22
EP0541078B1 (fr) 1996-07-31
DE69212563T2 (de) 1997-03-06
SE9103300D0 (sv) 1991-11-08
ES2092616T3 (es) 1996-12-01
SE468872B (sv) 1993-03-29

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