EP1367616A1 - Appareil de commutation électrique - Google Patents

Appareil de commutation électrique Download PDF

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Publication number
EP1367616A1
EP1367616A1 EP03090108A EP03090108A EP1367616A1 EP 1367616 A1 EP1367616 A1 EP 1367616A1 EP 03090108 A EP03090108 A EP 03090108A EP 03090108 A EP03090108 A EP 03090108A EP 1367616 A1 EP1367616 A1 EP 1367616A1
Authority
EP
European Patent Office
Prior art keywords
contact piece
pressure spring
switching
rod
drive element
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.)
Withdrawn
Application number
EP03090108A
Other languages
German (de)
English (en)
Inventor
Thomas Chyla
Gunnar Lutzke
Bernd-Ulrich Dr. Habedank
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Publication of EP1367616A1 publication Critical patent/EP1367616A1/fr
Withdrawn legal-status Critical Current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
    • H01H33/60—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
    • H01H3/605—Mechanical arrangements for preventing or damping vibration or shock making use of a fluid damper

Definitions

  • the invention relates to an electrical switching device with a first switching contact piece, which by means of a one-part or multi-part, rod-shaped drive element relative to a second switching contact piece in the longitudinal direction of the rod-shaped drive element is movable and with forms a switching path for the second switching contact piece, the first switch contact piece in the switched-on state of the electrical switching device by means of a pressure spring the second switching contact piece can be pressed.
  • Such an electrical switching device is known for example from the German patent DE 693 07 506 T2.
  • the electrical switching device there is designed as a switch disconnector for medium-voltage systems, the switching path of which is formed by a vacuum interrupter.
  • the vacuum interrupter has a first switching contact piece and a second switching contact piece, the second switching contact piece being arranged in a stationary manner and the first switching contact piece being movable relative to the stationary switching contact piece.
  • the movement of the movable switching contact piece takes place by means of a drive.
  • the second switch contact piece and the drive are connected to each other via a kinematic chain. Part of this kinematic chain is a rod-shaped drive element which is attached to the first switch contact piece.
  • a contact spring is inserted into the rod-shaped drive element there.
  • this pressure spring should be placed anywhere in the kinematic chain. Due to the currents to be switched in the medium and high voltage range, it is necessary that switching movements take place in the shortest possible time. It is therefore necessary that movable switch contact pieces are transferred almost suddenly from their on position to their off position and vice versa. Due to the elasticity of the pressure spring and the other elements of the kinematic chain, undesirable oscillations or vibrations can occur during these sudden movements.
  • the present invention is based on the object to design electrical switching device of the type mentioned in the introduction, that oscillations or vibrations of the kinematic Chain can be reduced.
  • the task is the beginning of an electrical switching device mentioned type according to the invention solved in that the Pressure spring at the end facing away from the switching path of the rod-shaped drive element is arranged.
  • the task can be solved by using the pressure spring is combined with a damping device, which influences the spring behavior of the pressure spring.
  • the rod-shaped drive element usually has one relatively large length.
  • By arranging the pressure spring at the end facing away from the switching path is almost the entire length of the rod-shaped drive element by the Spring before a strong dynamic load during a Switching process protected.
  • the rod-shaped drive element and the unsprung mass is opposite the first switch contact the known arrangements reduced.
  • the opposite end of the rod-shaped drive element comprises approximately the last quarter of the total length of the rod-shaped Drive element.
  • the damping device affects the spring behavior of the pressure spring such that a bouncing of the two contact pieces during a switch-on process is reduced. This is due to the reduced bouncing Arcing occurs between the switch contact pieces is reduced and thereby the switching distance is reduced Scope thermally stressed. When switching off is a reverberation of the relaxing spring dampened.
  • the effectiveness of the combination of the damping device and the pressure spring is independent of the installation location given the pressure spring. However, it is particularly advantageous the arrangement of the pressure spring on the of the switching path opposite end of the rod-shaped drive element in combination with a damping device.
  • Pressure spring is arranged on a coupling piece, which the rod-shaped drive element on a pivotable drive crank couples.
  • pivotable drive cranks are rod-shaped Drive elements coupled to a rotary To translate movement into a translatory movement.
  • the coupling of the rod-shaped drive element to the pivotable Drive crank can be by means of a so-called coupling piece be done to redirect and deflect the mechanical Forces in a permanent mechanical construction perform.
  • the pressure spring With an arrangement of the pressure spring on one Coupling piece, it is possible in a simple manner, the pressure spring at the end of the rod-shaped end facing away from the switching path Arrange drive element. Additional components, which is used to insert the pressure spring into the course of the rod-shaped drive element would be necessary not mandatory.
  • An advantageous embodiment provides for the presence a damping device also before that the pressure spring as well as the damping device within a common Housing are arranged.
  • the Damping device with respect to the direction of the switch-on movement of the first switching contact piece behind a rod-shaped Drive element is arranged.
  • FIG. 1 In the figure is a section through an electrical switching device 1 shown.
  • the electrical switching device 1 instructs a transmission housing 2 at its base.
  • a hollow post insulator 3 On the gearbox 2, a hollow post insulator 3 is mounted.
  • the post insulator 3 carries a hollow insulating housing 4 of the electrical Switchgear 1.
  • the gear housing 2, the support insulator 3 and the insulating housing 4 are connected to one another in a gastight manner and form an enclosed space inside.
  • the encapsulated space 5 is at the free end of the insulating housing 4 closed with a fitting 6.
  • To increase the Dielectric strength is the encapsulated space 5 with an insulating gas fillable.
  • the support insulator 3 and the insulating housing 4 have a shield 7 on their outer circumference Mistake.
  • the vacuum interrupter 8 is essentially formed from a hollow insulating body 8a, the Ends are closed by cover plates 9a and 9b.
  • cover plates 9a and 9b By one cover plate 9a is a first switch contact piece 10 using a bellows 11 movable and gas-tight passed.
  • cover plate 9b Through the other cover plate 9b is a second one Switching contact piece 12 passed gas-tight.
  • the second Switch contact piece 12 is mounted on the fitting 6 in a stationary manner and electrically contacted with it.
  • the vacuum interrupter 8 Over the other Cover plate 9b and the connection to the second switching contact piece 12 is the vacuum interrupter 8 in the interior of the insulating housing 4 positioned.
  • the electrical contact of the first switching contact piece 10 takes place, for example by means of a flexible conductor cable 13 which is spaced apart to the valve 6 in the area of the joint from the post insulator 3 and the insulating housing 4 using a connector is gas-tight to the outside.
  • the drive is able to rotate a drive shaft 14 to move.
  • the drive shaft 14 is gas-tight passed through a wall of the gear housing 2.
  • a drive crank 15 angularly rigid connected to the drive shaft 14.
  • the rod-shaped drive element 17 is in turn on the first switch contact piece 10 coupled.
  • the rod-shaped drive element 17 can for example as an insulating drive element in the form of a Tube be formed. This tube is out, for example made of a glass fiber reinforced plastic. by virtue of the length of the rod-shaped drive element 17 certain elasticity.
  • the coupling piece 16 has an essentially cylindrical shape Outer contour. There are several inside Arranged chambers in which further components are arranged are.
  • the coupling piece 16 Piston 19 movable relative to the housing of the coupling piece 16 on. That facing away from the rod-shaped drive element 17 The end of the piston 19 projects into a first chamber 20.
  • the first chamber 20 is partially with a hydraulic fluid 21 filled.
  • the first chamber 20 is through the piston 19 divided into a pressure space 20a and a relaxation space 20b.
  • the pressure space 20a and the relaxation space 20b are connected to one another by means of an overflow channel 22.
  • the dimensioning of the cross section of the overflow channel 22 is the overflowing volume of hydraulic fluid 21 per unit of time from the pressure space 20a into the relaxation space 20b and vice versa.
  • the piston 19 has between the stop 25 and the collar 24 a thickening 26.
  • the thickening 26 acts with the stop 25 together, so that the piston 19 in the operating state is not removable from the housing of the coupling piece 16.
  • a spring element for example a disc spring
  • a pressure spring 27 coaxial with the Piston 19 arranged.
  • the pressure spring 27 is a coil spring designed.
  • the pressure spring 27 is between the collar 24 of the housing of the coupling piece 16 and the thickening 26 of the piston 19 pressed in, so that the piston 19 in the direction of the rod-shaped drive element 17 is pressed.
  • the Stop 25 limits the mobility of the piston 19 in Direction of the rod-shaped drive element 17.
  • the pressure spring 27 is in the switched-off state of the electrical Switching device 1 biased in the second chamber 23.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP03090108A 2002-05-29 2003-04-11 Appareil de commutation électrique Withdrawn EP1367616A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10224449 2002-05-29
DE2002124449 DE10224449B3 (de) 2002-05-29 2002-05-29 Elektrisches Schaltgerät

Publications (1)

Publication Number Publication Date
EP1367616A1 true EP1367616A1 (fr) 2003-12-03

Family

ID=29414300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03090108A Withdrawn EP1367616A1 (fr) 2002-05-29 2003-04-11 Appareil de commutation électrique

Country Status (3)

Country Link
EP (1) EP1367616A1 (fr)
JP (1) JP2004071540A (fr)
DE (1) DE10224449B3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100307893A1 (en) * 2007-09-11 2010-12-09 Siemens Aktiengesellschaft Insulating switching rod
EP2460637A1 (fr) * 2010-12-03 2012-06-06 ABB Technology AG Procédé de fabrication de tige de poussée d'un interrupteur sous vide
US8916790B1 (en) 2013-07-30 2014-12-23 Kabushiki Kaisha Yaskawa Denki Switchgear
CN110739176A (zh) * 2019-09-27 2020-01-31 国网河南省电力公司商丘供电公司 一种电力输送用高压真空断路器

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4752678B2 (ja) * 2006-08-25 2011-08-17 三菱電機株式会社 開閉装置
DE102007058449A1 (de) * 2007-12-05 2009-06-10 Siemens Ag Kontaktanordnung eines Schaltgerätes sowie Schaltgerät
JP2011238453A (ja) * 2010-05-10 2011-11-24 Mitsubishi Electric Corp 固体絶縁開閉装置
JP5989445B2 (ja) * 2012-07-31 2016-09-07 株式会社東芝 開閉装置用操作機構の緩衝装置
SE541880C2 (sv) * 2015-01-19 2020-01-02 Noditech Ab Anordning i en värmecykel för omvandling av värme till elektrisk energi
CN109285725B (zh) * 2018-11-09 2024-03-22 国网浙江淳安县供电有限公司 一种35kV及以下高压真空断路保护装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535208A (en) * 1983-01-25 1985-08-13 Sprecher & Schuh Ag Actuating device for a high-voltage switch
DE3445359A1 (de) * 1984-12-12 1986-06-12 Brown, Boveri & Cie Ag, 6800 Mannheim Mit einer pneumatischen daempfungsvorrichtung ausgestatteter mechanischer kraftspeicherantrieb fuer einen leistungsschalter einer mittelspannungs- oder hochspannungsschaltanlage
EP0559552A1 (fr) * 1992-03-03 1993-09-08 Gec Alsthom T & D Sa Disjoncteur auto-sectionneur à intensité nominale élevée et application à une cellule et à un poste à moyenne tension
DE4430579A1 (de) * 1994-08-18 1996-02-22 Siemens Ag Hochspannungsschalter mit einem Hauptschaltkontakt und einer Hilfsschalteinrichtung
DE19631533A1 (de) * 1996-07-24 1998-01-29 Siemens Ag Lastschaltanlagen zur hochspannungsseitigen Abschaltung von Verteiltransformatoren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE376612C (de) * 1921-04-23 1923-06-01 Klein Peter Daempfungseinrichtung fuer Schwingungssysteme mit raschem Geschwindigkeitswechsel, insbesondere fuer schwingende Kontakte
DE1081547B (de) * 1954-11-03 1960-05-12 Ite Circuit Breaker Ltd Mit Zusatzmasse ausgestattete Daempfungsvorrichtung zur Verhuetung des Prellens elektrischer Schaltkontaktstuecke
DE3726739A1 (de) * 1987-08-07 1988-03-03 Slamecka Ernst Kontaktdruckerzeugungsvorrichtung insbesondere fuer vakuumschalter in einfach- oder zweifach-reihen-anordnung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535208A (en) * 1983-01-25 1985-08-13 Sprecher & Schuh Ag Actuating device for a high-voltage switch
DE3445359A1 (de) * 1984-12-12 1986-06-12 Brown, Boveri & Cie Ag, 6800 Mannheim Mit einer pneumatischen daempfungsvorrichtung ausgestatteter mechanischer kraftspeicherantrieb fuer einen leistungsschalter einer mittelspannungs- oder hochspannungsschaltanlage
EP0559552A1 (fr) * 1992-03-03 1993-09-08 Gec Alsthom T & D Sa Disjoncteur auto-sectionneur à intensité nominale élevée et application à une cellule et à un poste à moyenne tension
DE4430579A1 (de) * 1994-08-18 1996-02-22 Siemens Ag Hochspannungsschalter mit einem Hauptschaltkontakt und einer Hilfsschalteinrichtung
DE19631533A1 (de) * 1996-07-24 1998-01-29 Siemens Ag Lastschaltanlagen zur hochspannungsseitigen Abschaltung von Verteiltransformatoren

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100307893A1 (en) * 2007-09-11 2010-12-09 Siemens Aktiengesellschaft Insulating switching rod
US8309872B2 (en) * 2007-09-11 2012-11-13 Siemens Aktiengesellschaft Insulating switching rod
EP2460637A1 (fr) * 2010-12-03 2012-06-06 ABB Technology AG Procédé de fabrication de tige de poussée d'un interrupteur sous vide
WO2012072261A1 (fr) * 2010-12-03 2012-06-07 Abb Technology Ag Procédé de fabrication d'une tige de poussée d'un interrupteur à vide
CN103282182A (zh) * 2010-12-03 2013-09-04 Abb技术股份公司 用于制造真空灭弧室的推杆的方法
US9336960B2 (en) 2010-12-03 2016-05-10 Abb Technology Ab Method of manufacturing a push rod of a vacuum interrupter
CN103282182B (zh) * 2010-12-03 2017-01-18 Abb技术股份公司 用于制造真空灭弧室的推杆的方法
US8916790B1 (en) 2013-07-30 2014-12-23 Kabushiki Kaisha Yaskawa Denki Switchgear
CN110739176A (zh) * 2019-09-27 2020-01-31 国网河南省电力公司商丘供电公司 一种电力输送用高压真空断路器
CN110739176B (zh) * 2019-09-27 2022-03-04 国网河南省电力公司商丘供电公司 一种电力输送用高压真空断路器

Also Published As

Publication number Publication date
JP2004071540A (ja) 2004-03-04
DE10224449B3 (de) 2004-02-05

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