EP0723280A1 - Lasttrennschalter für Hochspannung - Google Patents

Lasttrennschalter für Hochspannung Download PDF

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Publication number
EP0723280A1
EP0723280A1 EP96400104A EP96400104A EP0723280A1 EP 0723280 A1 EP0723280 A1 EP 0723280A1 EP 96400104 A EP96400104 A EP 96400104A EP 96400104 A EP96400104 A EP 96400104A EP 0723280 A1 EP0723280 A1 EP 0723280A1
Authority
EP
European Patent Office
Prior art keywords
assembly according
column
cable
disconnector
connecting rod
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
EP96400104A
Other languages
English (en)
French (fr)
Other versions
EP0723280B1 (de
Inventor
Edmond Thuries
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D 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 T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0723280A1 publication Critical patent/EP0723280A1/de
Application granted granted Critical
Publication of EP0723280B1 publication Critical patent/EP0723280B1/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
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
    • H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
    • H01H31/30—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact actuated through the movement of one or more insulators

Definitions

  • the present invention relates to high voltage electrical substations.
  • a first object of the invention is to design a circuit breaker-disconnector assembly of lower cost than that of the current assemblies, in particular by replacing the rotary column disconnectors, of high cost, by more rustic construction switches and consequently, more economical. .
  • a second object of the present invention is to define a circuit breaker-disconnector assembly requiring a reduced floor area.
  • the present invention relates to a circuit breaker-disconnector assembly for a high-voltage electrical substation, characterized in that it comprises, by pole, at least one breaking chamber placed at the end of a first insulating column and comprising a first and a second socket, and a disconnector comprising a second fixed column and a pivoting column which can pivot around a shaft in the vertical plane containing the first and second columns and at the end of which is placed a connecting member which can cooperate with said second outlet, a cable connecting said end of the pivoting column to the top of the second column, an anti-roll rod connecting the top of the second column to a point of the cable.
  • the point of attachment between the connecting rod and the cable is situated substantially in the middle of the cable.
  • the connecting rod comprises two arms connected by a horizontal pivot axis.
  • the connecting rod is metallic with an insulated pin.
  • the fixing point between the connecting rod and the cable is provided with a corona guard.
  • a counterweight is attached to the rotation shaft of the pivoting column.
  • the end of the counterweight is embedded.
  • the assembly includes an earthing switch having the same rotation shaft as the pivoting column and which can pivot in a vertical plane.
  • the earthing switch comprises a connection member capable of cooperating with a complementary connection member at the end of the pivoting column.
  • the earthing switch includes a counterweight.
  • the earthing switch In the non-use position, the earthing switch partially rests in a floor channel.
  • the disconnector is with horizontal racking.
  • the disconnector is with vertical racking.
  • the second column is that of an intensity transformer.
  • the cable is multiple.
  • the reference 1 designates a breaking chamber of a circuit breaker; the breaking chamber is arranged vertically at the top of an insulating column 2 placed on a metal structure 3 carrying a control 4.
  • circuit breaker is given only by way of example, the invention applying to any type of circuit breaker, and in particular to circuit breakers with several breaking chambers per pole, arranged horizontally or in a V.
  • the breaking chamber has a first socket 5 which connects it to an overhead cable 6 or to a rigid bar. It includes a second socket 7 for its connection to a disconnector.
  • This disconnector comprises a pivoting column 11 and a fixed column 21. These columns are arranged in the same vertical plane also containing the column of the circuit breaker.
  • the column 11 comprises a metal portion 11A extended by an insulating part 11B terminated by electrical connection members 12 which can cooperate with the second socket 7 of the circuit breaker.
  • the column 11 can pivot in the above-mentioned vertical plane, around a shaft 13 carried by a block 14.
  • a counterweight 15 allows the pivoting column to be balanced. When the disconnector is in the closed position (which is shown in solid lines in FIG. 1) this counterweight can be embedded at least partially in the block 14, which increases the rigidity of the assembly.
  • the column 21 comprises a metal support structure 21A above which is placed an insulating portion 21B at the end of which is placed a socket 22 which is for example connected to a cable 23 or to a bar for the junction other substation devices (measuring transformers, etc.).
  • the station comprises, no longer a flexible cable 23, but a set of rigid bars, the column 21 constitutes the first support for the busbar.
  • an electric cable 30, which may consist of several elementary cables (multiple cable), connects the connection member 12 of the pivoting column and the socket 22.
  • An anti-roll rod 35 connects the top of the column 21 to a point on the cable situated substantially towards its middle.
  • This connecting rod may be constituted by a bar, but preferably this connecting rod comprises (see FIG. 2), two rigid arms 35A and 35B forming, with a horizontal pivot axis 36, a triangle whose apex is connected to the cable 30.
  • This axis is made of insulating material, but can be metallic provided that it is insulated from its support.
  • the anti-roll bar prevents the cable 30 from coming dangerously close, under the effect of electrodynamic forces, to the cables of the neighboring phases.
  • a corona element 40 is advantageously placed at the junction between the cable 30 and the anti-roll bar 35.
  • the assembly is completed by an earthing switch 45, which can pivot in a vertical plane parallel to the aforementioned vertical plane and advantageously having the same rotation shaft as the pivoting column 11.
  • This earthing switch has at its end a connection member 46 which can cooperate with the connection member 12. It also includes a counterweight 48.
  • the disconnector is disconnected by pivoting in the direction of the arrow. At the end of pivoting, it comes to occupy a position, shown in dashed lines in FIG. 1, where the isolation distances are respected. The cable then takes a hairpin position.
  • the disconnector can be earthed by pivoting, in the opposite direction to that of arrow F, of the earthing disconnector 45, the connection member 46 of which is copied with a complementary member at the end of the swivel column 11.
  • the embedding of the earthing switch counterweight strengthens its rigidity in the event of a short circuit.
  • the fixed column 21 may be the column 49 of an intensity transformer 50 fitted to the electrical station.
  • disconnector 12 can be with horizontal plugging in (Fig. 3) or with vertical plugging in (Fig. 4).
  • Horizontal racking can be advantageous in the event of a short circuit, since the vibrations then produce only friction, without the risk of separation of the contacts which would generate sparks, as can occur in the case of vertical racking.
  • the item of the invention is of reduced cost, thanks in particular to the simplicity of the main disconnector.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Studio Devices (AREA)
EP96400104A 1995-01-20 1996-01-16 Lasttrennschalter für Hochspannung Expired - Lifetime EP0723280B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9500647 1995-01-20
FR9500647A FR2729787A1 (fr) 1995-01-20 1995-01-20 Ensemble disjoncteur-sectionneur pour poste electrique a haute tension

Publications (2)

Publication Number Publication Date
EP0723280A1 true EP0723280A1 (de) 1996-07-24
EP0723280B1 EP0723280B1 (de) 2002-03-20

Family

ID=9475338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96400104A Expired - Lifetime EP0723280B1 (de) 1995-01-20 1996-01-16 Lasttrennschalter für Hochspannung

Country Status (5)

Country Link
EP (1) EP0723280B1 (de)
AT (1) ATE214841T1 (de)
DE (1) DE69619881T2 (de)
ES (1) ES2170840T3 (de)
FR (1) FR2729787A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017114928B4 (de) * 2017-07-04 2019-07-18 Spie Sag Gmbh Umspannwerkvorrichtung sowie Verfahren zur Herstellung derselbigen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006866A (en) * 1931-12-30 1935-07-02 George N Lemmon Electric switch
US2354991A (en) * 1943-02-06 1944-08-01 Southern States Equipment Corp Electric switch
DE2202972A1 (de) * 1972-01-21 1973-07-26 Driescher Eltech Werk Schaltungsanordnung zum abschalten einer an einer hauptleitung zwischen zwei hauptschaltern angeschlossenen zweigleitung eines stromversorgungsnetzes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2006866A (en) * 1931-12-30 1935-07-02 George N Lemmon Electric switch
US2354991A (en) * 1943-02-06 1944-08-01 Southern States Equipment Corp Electric switch
DE2202972A1 (de) * 1972-01-21 1973-07-26 Driescher Eltech Werk Schaltungsanordnung zum abschalten einer an einer hauptleitung zwischen zwei hauptschaltern angeschlossenen zweigleitung eines stromversorgungsnetzes

Also Published As

Publication number Publication date
ES2170840T3 (es) 2002-08-16
FR2729787A1 (fr) 1996-07-26
ATE214841T1 (de) 2002-04-15
DE69619881T2 (de) 2002-07-18
EP0723280B1 (de) 2002-03-20
FR2729787B1 (de) 1997-02-21
DE69619881D1 (de) 2002-04-25

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