WO2011020511A1 - Moyen de liaison - Google Patents

Moyen de liaison Download PDF

Info

Publication number
WO2011020511A1
WO2011020511A1 PCT/EP2009/060775 EP2009060775W WO2011020511A1 WO 2011020511 A1 WO2011020511 A1 WO 2011020511A1 EP 2009060775 W EP2009060775 W EP 2009060775W WO 2011020511 A1 WO2011020511 A1 WO 2011020511A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
connecting means
contact
switch
switchgear
Prior art date
Application number
PCT/EP2009/060775
Other languages
German (de)
English (en)
Inventor
Gerhard Drechsler
Tushar Maruti Rane
Matthias Gerstner
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/EP2009/060775 priority Critical patent/WO2011020511A1/fr
Publication of WO2011020511A1 publication Critical patent/WO2011020511A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • H01H2001/5827—Laminated connections, i.e. the flexible conductor is composed of a plurality of thin flexible conducting layers
    • 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
    • H01H31/003—Earthing switches
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/6606—Terminal arrangements
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches

Definitions

  • the invention relates to a connecting means for electrically connecting in each case a contact of a power or load switch, a circuit breaker and a grounding switch of a switchgear.
  • Switchgear are power or load switch, circuit breaker and earthing switch of the switchgear busbars, for example in the form of rigid copper lines, connected to each other, wherein a movable contact of a switch is usually connected via a flexible power band with another contact of the other switch.
  • the object of the invention is to form a connecting means with which a space-saving and compact construction of a switchgear is made possible.
  • this object is achieved by a connecting means for electrically connecting in each case a contact of a power or load switch, a circuit breaker and a grounding switch of a switchgear, wherein at least one of the contacts is designed to be movable relative to the respective other contacts, wherein the connecting means formed as a flexible current band is and has fastening means for attaching the contacts.
  • Circuit breaker or circuit breaker, a circuit breaker and a Earthing switch are electrically connected to each other, so that different states of the switchgear are in different switch positions of earthing switch, circuit breaker and disconnect switch are ingestible.
  • a connecting means to ground a grounded or closed earthing switch and open disconnector via the connecting means a circuit breaker and connected cable outlet area of the switchgear; It is also possible, with the disconnector and the grounding switch open a current path over a
  • the current band consists of individual stacked copper lamellae, which are plated through to the fastening means for the contacts.
  • the stacked flexible copper lamellae form a current band, wherein an effective electrical connection is formed by through-contacting the fastening means, ie conducting the individual lamellae together, which ensures a necessary flexibility by using the copper lamellae to one of the contacts, which is movably formed relative to the other contacts, to be attached to the connecting means and to allow its relative movement to the other contacts.
  • the connecting means on two flexible portions, wherein the connecting means at a first end with a Erdungsschalter- fixed contact and connected at a second end with a TrennschalterbewegCount and between the two flexible terminals with a circuit breaker moving contact.
  • FIG. 1 shows a perspective view of a switchgear with a connecting means according to the invention.
  • Figure 2 is a side view of a switchgear with a connecting means according to the invention.
  • FIG. 1 shows a perspective partial view of a three-phase switchgear 1, in which a three-phase circuit breaker 8, a three-phase isolating switch 9 and a three-phase earthing switch 10 are arranged between busbar connections 2, 3 and 4 and cable outlet terminals 5, 6 and 7.
  • a three-phase switchgear 1 shows a perspective partial view of a three-phase switchgear 1, in which a three-phase circuit breaker 8, a three-phase isolating switch 9 and a three-phase earthing switch 10 are arranged between busbar connections 2, 3 and 4 and cable outlet terminals 5, 6 and 7.
  • the current path of switchgear 1 is determined by phase Ll in the following described in more detail, wherein the sake of clarity switchgear walls of the switchgear 1 figuratively not shown.
  • the current path is formed via the busbar connection 2, which extends through a bushing 11 to a disconnector fixed contact 12, which forms the disconnector 9 together with a TrennschalterbewegCount 13.
  • the disconnector switch contact is conductively connected to a circuit breaker moving contact 15 of a vacuum interrupter 16 and to a grounding switch fixed contact 17.
  • the circuit breaker moving contact 15 of the vacuum interrupter 16 forms, with a circuit breaker fixed contact 18, the circuit breaker 8, the circuit breaker fixed contact 18 being connected to the cable outlet connection 5 via a feedthrough support 19.
  • the earthing switch fixed contact 17 forms the grounding switch 10 with a grounding switch moving contact 20.
  • the TrennschalterbewegCount 13 of the circuit breaker 9 is mechanically connected to a circuit breaker drive shaft 21 so that a drive movement in the TrennschalterbewegMap 13 for opening or closing the circuit breaker 9 to form a separation path for dielectric isolation of the cable outlet portion of the busbar connection area can be introduced via a not shown.
  • the circuit breaker moving contact 15 is mechanically connected through a circuit breaker drive rod 22 to a power switch drive shaft 23 for initiating drive movement into the circuit breaker moving contact 15 so that the power switch 8 can be actuated via the power switch drive shaft 23.
  • the earthing switch way contact 20 is mechanically connected to a grounding switch drive shaft 24 to drive, via the grounding switch drive shaft 24, a drive movement into the earthing switch shaft. to form the contact 20 for closing or establishing a connection with the earthing switch fixed contact 17, to allow grounding, for example, the cable outlet connection portion of the cable outlet terminals 5, 6 and 7 when the disconnector 9 is open.
  • the circuit breaker 8 is used, for example, for switching in a present in a power transmission system short circuit, the circuit breaker 9 is provided for dielectric separation between busbar terminal 2 and cable outlet terminal 5, wherein when the disconnector 9 is open via the grounding switch 10 a
  • Grounding of the cable outlet connection is possible, for example, to perform maintenance.
  • the disconnector switch contact 13, the circuit breaker moving contact 15 and the earthing switch fixed contact 17 are carried on a holding element 25, wherein for the phases L2 and L3 further holding elements 26 and 27 are provided.
  • the holding member 25 in this case has a double U-shape with in the embodiment upwardly extending legs 28 and 29, downwardly extending legs 30 and 31 and cross struts 32 and 33.
  • the legs 28, 29, 30 and 31 and the cross struts 32 and 33 are used for the mechanical stabilization of the holding element 25 and the dielectric isolation or formation of creepage distances by the holding element 25, which is formed from an insulating material.
  • the holding element 25 furthermore has fastening means 34, 35, 36 and 37, in the exemplary embodiment in the form of holes, by means of which the holding element 25 attaches to switchgear walls of the switchgear 1, which are not shown in FIG. taken, for example, can be screwed to unbent edges of a mounting hole.
  • FIG. 2 shows a side view of the switchgear 1 from FIG. 1, in which the side walls 39 and 40 of the switchgear 1 are schematically illustrated, and the upper and lower walls 41 and 42 of the switchgear 1 with switches arranged therein, as already described with reference to FIG described, as well as the holding element 25 according to the invention, to which the earthing switch fixed contact 17 is fixed and carried therewith and the circuit breaker moving contact 15 and the TrennschalterbewegCount 13 out and worn therewith.
  • the holding element 25 is fixed to the side walls 39 and 40 of the switchgear 1 by fittings, not shown figuratively, in the embodiment at unbent edges of the side walls 39 and 40.
  • the connecting means 14 in Form of a flexible current band which is provided for the electrically conductive connection between earthing switch fixed contact 17, circuit breaker moving contact 15 and disconnector moving contact 13, via which the current path between busbar connection 2 and cable outlet connection 5 is formed when the earthing switch 10 and the disconnector 9 and the circuit breaker 8 are closed and via which connection means 14 when the disconnector is open and the earthing switch 10 is closed and the circuit breaker 8 is closed, a grounding of the cable outlet connection 5 is made possible.
  • the connecting means 14 has for this purpose two flexible sections 43 and 44 which are each conductively connected to the circuit breaker movement contact 15 and on the other hand to the Erdungsschalterfestkon- contact 17 and the TrennschalterbewegCount 13 are conductively connected.
  • the connecting means 14 with its two flexible sections 43 and 44 is electrically connected via fastening means 45 to the earthing switch fixed contact 17 and fastened thereto and electrically connected via the fastening means 46 to the isolating switch movement contact 13 and fixed thereto and via the fastening means 47 between the two flexible portions 43 and 44 are electrically connected to and fixed to the circuit breaker moving contact 15.
  • the connecting means 14 is a flexible current band of individual, stacked copper fins, which are connected to the fastening means 45, 46, 47 in each case connected to each other and thus plated. LIST OF REFERENCE NUMBERS

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

L'invention vise à créer un moyen de liaison (14), destiné à relier électriquement un contact respectivement d'un disjoncteur de puissance ou d'un interrupteur de puissance (8), d'un sectionneur (9) et d'un sectionneur de terre (10) d'un appareillage de commutation (1), qui permette un montage compact et peu encombrant de l'appareillage (1). A cet effet, pour le moyen de liaison (14) selon l'invention, destiné à relier électriquement un contact respectivement d'un disjoncteur de puissance ou d'un interrupteur de puissance (8), d'un sectionneur (9) et d'un sectionneur de terre (10) d'un appareillage de commutation (1), au moins un des contacts est conçu mobile par rapport aux autres contacts, le moyen de liaison (14) ayant la forme d'un ruban électrique souple et comportant des moyens de fixation (45, 46, 47) pour fixer les contacts.
PCT/EP2009/060775 2009-08-20 2009-08-20 Moyen de liaison WO2011020511A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/060775 WO2011020511A1 (fr) 2009-08-20 2009-08-20 Moyen de liaison

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2009/060775 WO2011020511A1 (fr) 2009-08-20 2009-08-20 Moyen de liaison

Publications (1)

Publication Number Publication Date
WO2011020511A1 true WO2011020511A1 (fr) 2011-02-24

Family

ID=42035508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/060775 WO2011020511A1 (fr) 2009-08-20 2009-08-20 Moyen de liaison

Country Status (1)

Country Link
WO (1) WO2011020511A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957098A (zh) * 2011-08-31 2013-03-06 湖南丰日电源电气股份有限公司 用于高压开关柜的小型化一体式开关
CN103618215A (zh) * 2013-11-30 2014-03-05 国家电网公司 一种开关柜及其主回路结构

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1381064A1 (fr) * 2002-07-12 2004-01-14 Hitachi, Ltd. Commutateur à vide
US20040256360A1 (en) * 2002-04-16 2004-12-23 Shuuichi Kikukawa Vacuum switchgear
US20050153534A1 (en) * 2004-01-08 2005-07-14 Shigeru Kikuchi Electric contacts and method of manufacturing thereof, and vacuum interrupter and vacuum circuit breaker using thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040256360A1 (en) * 2002-04-16 2004-12-23 Shuuichi Kikukawa Vacuum switchgear
EP1381064A1 (fr) * 2002-07-12 2004-01-14 Hitachi, Ltd. Commutateur à vide
US20050153534A1 (en) * 2004-01-08 2005-07-14 Shigeru Kikuchi Electric contacts and method of manufacturing thereof, and vacuum interrupter and vacuum circuit breaker using thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102957098A (zh) * 2011-08-31 2013-03-06 湖南丰日电源电气股份有限公司 用于高压开关柜的小型化一体式开关
CN103618215A (zh) * 2013-11-30 2014-03-05 国家电网公司 一种开关柜及其主回路结构

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