EP0157922B1 - Interrupteur à haute tension - Google Patents
Interrupteur à haute tension Download PDFInfo
- Publication number
- EP0157922B1 EP0157922B1 EP84114953A EP84114953A EP0157922B1 EP 0157922 B1 EP0157922 B1 EP 0157922B1 EP 84114953 A EP84114953 A EP 84114953A EP 84114953 A EP84114953 A EP 84114953A EP 0157922 B1 EP0157922 B1 EP 0157922B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- rated
- current
- switching
- sliding
- 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
Links
Images
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-A-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 contact 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 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 slide rated 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 be used with the same via the nominal current bridging contact 19 and the Slide nominal current contact 14 make an electrically conductive connection.
- the nominal sliding current contact 14 and the nominal current bridging contact 19 are arranged relative to one another such that the electrical contact occurring between them due to the displacement of the nominal sliding current contact 14 in the switch-on direction in the course of the switch-on movement is only established after the fixed erosion contact 3 has been contacted by the movable erosion contact 6. As a result, pre-ignition between the nominal slide current contact 14 and the nominal current bridging contact 19 are avoided.
- the contact surfaces of the rated current bridging contact 19 and the resistance contact 9 are cylindrical in shape and interact with contact zones 21, 22 in the form of cylindrical jackets on the inner surface of the nominal 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.
- the insulating zone 23 is connected to the contact zone 21 interacting with the nominal current bridging contact 19, the inner surface of which is attached when 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 (broken 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.
- 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 nominal sliding current contact 14 just reaches the contact lamella of the nominal current bridging contact 19, with which one connects the conductor 20 via the nominal current bridging contact 19 and the nominal sliding current contact 14 to the movable contact piece 4 Nominal current path 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.
- a fifth intermediate state is reached - shown in FIG. 3b - in which the movable erosion contact 6 just separates from the fixed 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.
- a sixth intermediate state shown in FIG. 3c, in which the movable contact piece 4 has almost again reached the position assumed in the switch-off position and the contact zone 21 on the nominal sliding current contact 14 runs from the contact lamella of the nominal current bridging contact 19 in the course of returning the latter to the basic position.
- the movable contact piece 4 reaches the position assumed in the switch-off position, and a little later the delayed sliding nominal current contact 14.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Claims (8)
caractérisé en ce que
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 EP0157922A1 (fr) | 1985-10-16 |
EP0157922B1 true 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) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2612683B1 (fr) * | 1987-03-18 | 1994-06-03 | 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. |
FR2663456B1 (fr) * | 1990-06-14 | 1996-04-26 | Alsthom Gec | Disjoncteur a varistance incorporee. |
FR2688624A1 (fr) * | 1992-03-10 | 1993-09-17 | Alsthom Gec | Contact a inertie pour disjoncteur permettant l'insertion temporaire d'une impedance. |
FR2704088B1 (fr) * | 1993-04-13 | 1995-05-19 | Gec Alsthom T & D Sa | Dispositif d'insertion pour disjoncteur. |
DE19547098A1 (de) * | 1995-12-16 | 1997-06-19 | Asea Brown Boveri | Leistungsschalter mit einem Einschaltwiderstand |
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 |
US8957342B2 (en) * | 2012-12-12 | 2015-02-17 | Southern States Llc | Sealed solenoid magnetically operated high voltage electric power switch |
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 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL148179B (nl) * | 1972-06-14 | 1975-12-15 | Coq Bv | Elektrische vermogensschakelaar voor hoge spanning met een overbruggingsweerstand, die is aangebracht op een uit delen samengestelde isolator. |
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 |
IT1144419B (it) * | 1980-07-23 | 1986-10-29 | Alsthom Atlantique | Interruttore a gas compresso |
FR2503448B1 (fr) * | 1981-03-31 | 1986-04-18 | Alsthom Atlantique | Disjoncteur a gaz comprime |
JPS58165221A (ja) * | 1982-03-25 | 1983-09-30 | 三菱電機株式会社 | 断路器 |
-
1984
- 1984-03-28 DE DE19843411445 patent/DE3411445A1/de not_active Withdrawn
- 1984-12-08 DE DE8484114953T patent/DE3477088D1/de not_active Expired
- 1984-12-08 EP EP84114953A patent/EP0157922B1/fr not_active Expired
-
1985
- 1985-01-30 US US06/696,265 patent/US4608470A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US4608470A (en) | 1986-08-26 |
EP0157922A1 (fr) | 1985-10-16 |
DE3411445A1 (de) | 1985-08-08 |
DE3477088D1 (en) | 1989-04-13 |
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