EP0157922A1 - Interrupteur à haute tension - Google Patents

Interrupteur à haute tension Download PDF

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Publication number
EP0157922A1
EP0157922A1 EP84114953A EP84114953A EP0157922A1 EP 0157922 A1 EP0157922 A1 EP 0157922A1 EP 84114953 A EP84114953 A EP 84114953A EP 84114953 A EP84114953 A EP 84114953A EP 0157922 A1 EP0157922 A1 EP 0157922A1
Authority
EP
European Patent Office
Prior art keywords
contact
switch
movable
current
fixed
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
EP84114953A
Other languages
German (de)
English (en)
Other versions
EP0157922B1 (fr
Inventor
Walter Bischofberger
Heinz Eichholzer
Werner Graber
Jiri Talir
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of EP0157922A1 publication Critical patent/EP0157922A1/fr
Application granted granted Critical
Publication of EP0157922B1 publication Critical patent/EP0157922B1/fr
Expired 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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/16—Impedances connected with contacts
    • H01H33/166—Impedances connected with contacts the impedance being inserted only while closing the switch

Definitions

  • the invention relates to a high-voltage switch according to the preamble of claim 1. Such switches are used to connect high voltage to longer transmission lines.
  • a high-voltage switch according to the preamble of claim 1 is known (US Pat. No. 4,338,500), in which, in addition to a fixed and a movable rated current contact and a fixed and a movable erosion contact, a third pair of contacts is used to interpose the on-resistance.
  • the object of the invention is to simplify the construction of generic switches and to make them cheaper.
  • 1, 2a-c, 3a-c show an essentially axially symmetrical high-voltage switch which, in its basic construction in a porcelain housing 1, has a fixed contact piece 2 with a nominal current contact and a fixed erosion contact 3 arranged in the area of the switch axis and surrounded by the nominal current contact contains as well as a movable switch piece 4 with a movable nominal current contact 5 and a movable erosion contact 6.
  • a switch-on resistor 8 Arranged between the fixed contact piece 2 and a flange 7 forming a first electrical connection is a switch-on resistor 8, which is electrically connected between a resistance contact 9 and the flange 7 and which is bridged in the course of the switch-on process.
  • the movable contact piece 4 is in an electrically conductive connection via a fixed piston 10, with which it forms a blowing device, with a second flange 11 forming a second electrical connection. At its end facing the fixed contact piece 2, it carries an insulating nozzle 12 coaxially surrounding the movable erosion contact 6.
  • the rated current contact of the fixed contact 2 has a ring of contact fingers 13 at its end facing the movable contact 2. It is in the switched-on position with the first flange 7 in an electrically conductive connection.
  • the nominal current contact of the fixed contact 2 is designed as a sliding nominal current contact 14, which can be displaced to a limited extent in the switch-on direction from a basic position assumed in the switch-off position against the force of a spring 15.
  • the movable nominal current contact 5 has a stop 16 which interacts with the ends of the contact fingers 13 in the course of the switching-on movement of the movable contact piece 4.
  • a vacuum damper 17 with a valve 18, which opens when the sliding current contact 14 is pushed back is closed and is otherwise only slightly or only slightly permeable to gas, ensures that the return of the sliding nominal current contact 14 to the basic position during the switching-off process is delayed compared to the switching-off movement of the movable switching element 4.
  • a nominal current bridging contact 19 which is arranged within the area surrounded by the sliding nominal current contact 14 and is in electrical contact with the same in the switched-on position, but is insulated from it when it is in the basic position, is isolated by means of an insulated through an axial bore in the switch-on resistor 8 guided conductor 20 with the first flange 7 electrically connected.
  • the resistance contact 9 is constantly in electrical contact with the sliding current contact 14.
  • the fixed erosion contact 3 like the rated current bypass contact 19, is connected in an electrically conductive manner to the first flange 7 by means of the conductor 20. It is insulated from the resistance contact 9 in the switched-on position and can only make an electrically conductive connection with the same via the nominal current bridging contact 19 and the sliding nominal current contact 14.
  • the nominal sliding current contact 14 and the nominal current bridging contact 19 are arranged relative to one another in such a way that the electrical contact which occurs between them in the course of the switch-on movement in the course of the switching-on movement in the switching-on direction occurs between them only after the fixed erosion contact 3 has been contacted by the movable erosion contact 6. As a result, pre-ignitions between the nominal slide current contact 14 and the nominal current bridging contact 19 are avoided.
  • the contact surfaces of the nominal current bridging contact 19 and the resistance contact 9 are cylindrical in shape formed and cooperate with likewise cylindrical jacket-shaped contact zones 21, 22 on the inner surface of the sliding current contact 14.
  • the resistance contact 9 is arranged on the switch-on side of the nominal current bridging contact 19, its contact surface has a larger radius than that of the nominal current bridging contact 9.
  • an insulating ring 23 is attached to the sliding nominal current contact 14, the inner surface of which if the Nominal slide current contact 14 is in the basic position or is only slightly displaced relative to the same, surrounds the nominal current bridging contact 19 and isolates it from the nominal slide current contact 14.
  • the time is plotted on the abscissa in FIG. 4 and the stroke of the movable switching element 2 (solid line) and the displacement of the sliding current contact 14 from the basic position (dashed line) are plotted on the ordinate.
  • the designations 1, o, 1, u, 2a, 2b, 2c, 3a, 3b, 3c below the abscissa refer to the figures 1, upper and lower halves, 2a-c, 3a, which represent the state of the switch reached at the given time - c.
  • FIG. 1 upper half, shown in FIG. 1, in which the sliding nominal current contact 14 is in the basic position and is insulated from the nominal current bridging contact 19, the contact surface 21 of which is surrounded by the inner surface of the insulating ring 23 movable switching piece 2 brought into a first intermediate state reached at time B, shown in FIG. 2a, in which the movable nominal current contact 5 and the contact fingers 13 of Sehiebenennstromnaps 14 just touch, pre-ignition occurring before the edge contact is absorbed by the erosion-proof ends of said contacts. From then on there is a continuous current path from the first flange 7 via the switch-on resistor 8, the resistance contact 9, the sliding current contact 14, the movable contact piece 4 and the piston 10 to the second flange 11.
  • the switch reaches a second intermediate state, shown in FIG. 2b, in which the movable erosion contact 6 just reaches the fixed erosion contact 3, whereby the pre-ignition which occurs again due to the voltage drop across the switch-on resistor 8 occurs anyway Burn-resistant ends of the erosion contacts are caught.
  • a further electrically conductive connection is established between the first flange 7 and the second flange 11. It includes the conductor 20, the fixed erosion contact 3, the movable contact piece 4 and the piston 10.
  • the on-resistance 8 is thus bridged.
  • the stop 16 abuts the tips of the contact fingers 13 of the sliding current contact 14, which is still in the basic position.
  • the sliding current contact 14 is carried along by it and moved against the force of the spring 15 in the switch-on direction.
  • the switch reaches an intermediate state shown in FIG. 2c, in which the contact zone 21 of the sliding nominal current contact 14 just reaches the contact lamella of the nominal current bridging contact 19, with which one leads the conductor 20 via the nominal current bridging contact 19 and the nominal current path connecting the sliding nominal current contact 14 to the movable contact piece 4 is established.
  • the further course of the switch-on movement brings the switch at a time E into the switch-on position shown in FIG. 1, lower half.
  • the switch reaches a fourth intermediate state - shown in FIG. 3a - at a point in time F, in which the movable nominal current contact 5 just separates from the delayed sliding nominal current contact 14.
  • the nominal current path is interrupted from then on.
  • FIG. 3b a fifth intermediate state is reached - shown in FIG. 3b - in which the movable erosion contact 6 just separates from the stationary erosion contact 3. An arc is drawn between them, which is blown and the extinguishing of which is completed at a point in time H.
  • FIG. 3c a sixth intermediate state is shown in which the movable switching element 4 has almost again reached the position assumed in the switch-off position and the contact zone 21 on the sliding current contact 14 in the course of the return of the latter to the basic position of the contact lamella of the nominal current bridging contact 19 expires.
  • the movable contact piece 4 reaches the position assumed in the switch-off position, and a little later also the delayed sliding nominal current contact 14.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP84114953A 1984-02-06 1984-12-08 Interrupteur à haute tension Expired EP0157922B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH54884 1984-02-06
CH548/84 1984-02-06

Publications (2)

Publication Number Publication Date
EP0157922A1 true EP0157922A1 (fr) 1985-10-16
EP0157922B1 EP0157922B1 (fr) 1989-03-08

Family

ID=4189536

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114953A Expired EP0157922B1 (fr) 1984-02-06 1984-12-08 Interrupteur à haute tension

Country Status (3)

Country Link
US (1) US4608470A (fr)
EP (1) EP0157922B1 (fr)
DE (2) DE3411445A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612683A1 (fr) * 1987-03-18 1988-09-23 Alsthom Disjoncteur a haute tension a resistance de fermeture
FR2654251A1 (fr) * 1989-11-03 1991-05-10 Alsthom Gec Disjoncteur limiteur de surtensions.
FR2657459A1 (fr) * 1990-01-19 1991-07-26 Alsthom Gec Disjoncteur a haute tension a resistance de fermeture.
EP0461629A1 (fr) * 1990-06-14 1991-12-18 Gec Alsthom Sa Disjoncteur à varistance incorporée
EP0560665A1 (fr) * 1992-03-10 1993-09-15 Gec Alsthom T & D Sa Contact à inertie
DE19547098A1 (de) * 1995-12-16 1997-06-19 Asea Brown Boveri Leistungsschalter mit einem Einschaltwiderstand

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704088B1 (fr) * 1993-04-13 1995-05-19 Gec Alsthom T & D Sa Dispositif d'insertion pour disjoncteur.
FR2748597B1 (fr) * 1996-05-13 1998-06-12 Gec Alsthom T & D Sa Disjoncteur a haute tension avec insertion de resistance a la fermeture
FR2751781B1 (fr) * 1996-07-24 1998-09-04 Gec Alsthom T & D Sa Disjoncteur avec insertion temporaire de resistance a la fermeture
FR2764728B1 (fr) * 1997-06-12 1999-09-24 Gec Alsthom T & D Sa Disjoncteur a resistance de fermeture
DE102006014286A1 (de) * 2006-03-24 2007-10-11 Siemens Ag Unterbrechereinheit mit Einschaltwiderstand
EP2932507A4 (fr) * 2012-12-12 2016-12-14 Southern States Llc Commutateur de puissance électrique haute tension à fonctionnement magnétique à solénoïde scellé
FR3051594B1 (fr) * 2016-05-19 2020-04-24 Hager-Electro Sas Cartouche fusible
DE102017221783A1 (de) * 2017-12-04 2019-06-06 Siemens Aktiengesellschaft Anordnung und Verfahren zum Schalten hoher Spannungen mit einer Schalteinrichtung und genau einem Widerstandsstapel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2188284A1 (fr) * 1972-06-14 1974-01-18 Coq Bv
FR2450501A1 (fr) * 1979-03-02 1980-09-26 Alsthom Cgee Dispositif d'insertion de resistance a la fermeture d'un appareil d'interruption
US4324959A (en) * 1978-10-16 1982-04-13 S&C Electric Company Pre-insertion resistor mechanism for a circuit interrupting device
FR2503448A2 (fr) * 1981-03-31 1982-10-08 Alsthom Atlantique Disjoncteur a gaz comprime

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1144419B (it) * 1980-07-23 1986-10-29 Alsthom Atlantique Interruttore a gas compresso
JPS58165221A (ja) * 1982-03-25 1983-09-30 三菱電機株式会社 断路器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2188284A1 (fr) * 1972-06-14 1974-01-18 Coq Bv
US4324959A (en) * 1978-10-16 1982-04-13 S&C Electric Company Pre-insertion resistor mechanism for a circuit interrupting device
FR2450501A1 (fr) * 1979-03-02 1980-09-26 Alsthom Cgee Dispositif d'insertion de resistance a la fermeture d'un appareil d'interruption
FR2503448A2 (fr) * 1981-03-31 1982-10-08 Alsthom Atlantique Disjoncteur a gaz comprime

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2612683A1 (fr) * 1987-03-18 1988-09-23 Alsthom Disjoncteur a haute tension a resistance de fermeture
US5262605A (en) * 1989-11-03 1993-11-16 Gec Alsthom Sa Surge-limiting circuit breaker
FR2654251A1 (fr) * 1989-11-03 1991-05-10 Alsthom Gec Disjoncteur limiteur de surtensions.
EP0431306A1 (fr) * 1989-11-03 1991-06-12 Gec Alsthom Sa Disjoncteur limiteur de surtensions
FR2657459A1 (fr) * 1990-01-19 1991-07-26 Alsthom Gec Disjoncteur a haute tension a resistance de fermeture.
FR2663456A1 (fr) * 1990-06-14 1991-12-20 Alsthom Gec Disjoncteur a varistance incorporee.
US5164559A (en) * 1990-06-14 1992-11-17 Gec Alsthom Sa Circuit breaker with an incorporated varistor
EP0461629A1 (fr) * 1990-06-14 1991-12-18 Gec Alsthom Sa Disjoncteur à varistance incorporée
EP0560665A1 (fr) * 1992-03-10 1993-09-15 Gec Alsthom T & D Sa Contact à inertie
FR2688624A1 (fr) * 1992-03-10 1993-09-17 Alsthom Gec Contact a inertie pour disjoncteur permettant l'insertion temporaire d'une impedance.
US5302784A (en) * 1992-03-10 1994-04-12 Gec Alsthom T&D Sa Circuit breaker inertia contact assembly for resistance insertion during opening and closing operations
DE19547098A1 (de) * 1995-12-16 1997-06-19 Asea Brown Boveri Leistungsschalter mit einem Einschaltwiderstand
US5814782A (en) * 1995-12-16 1998-09-29 Asea Brown Boveri Ag Rower circuit-breaker having a closing resistor
EP0779637A3 (fr) * 1995-12-16 1998-11-25 Asea Brown Boveri Ag Disjoncteur avec résistance de fermeture

Also Published As

Publication number Publication date
US4608470A (en) 1986-08-26
DE3477088D1 (en) 1989-04-13
DE3411445A1 (de) 1985-08-08
EP0157922B1 (fr) 1989-03-08

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