EP2016601A1 - Power switch, especially high-current switch - Google Patents
Power switch, especially high-current switchInfo
- Publication number
- EP2016601A1 EP2016601A1 EP07728946A EP07728946A EP2016601A1 EP 2016601 A1 EP2016601 A1 EP 2016601A1 EP 07728946 A EP07728946 A EP 07728946A EP 07728946 A EP07728946 A EP 07728946A EP 2016601 A1 EP2016601 A1 EP 2016601A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pole
- busbar
- fixed contact
- connection means
- welded
- 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
Links
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
-
- 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
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- 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
- H01H2001/5894—Electric connections to or between contacts; Terminals the extension of the contact being welded to a wire or a bus
Definitions
- the invention relates to a circuit breaker, in particular a high-current switch, having at least one pole unit with a pole head and a pole carrier and a vacuum interrupter arranged therebetween with a fixed contact and a moving contact, wherein the fixed contact via a first connection means with a first busbar of the pole unit and the moving contact are connected via a second connection means with a second bus bar of the pole unit.
- Such a circuit breaker is known for example from Siemens publication "Siemens HG 11.11 1999" is known.
- the disclosed therein high-current switch as the power switch includes fully three pole units, each with a pole head and a pole base and one each interposed vacuum ⁇ interrupter.
- a fixed contact and a moving contact In order to connect the contacts to the busbars, in this previously known circuit breaker connecting means are screwed on the one hand to the respective contact and on the other hand to the respective busbar.
- Object of the present invention is to develop a circuit breaker of the type mentioned, which has a higher current carrying capacity.
- this object is, are that the first terminal means to the first power rail and the fixed contact and the second connection means rail to the second power ⁇ and welded to the moving contact at a power scarf ⁇ ter of the aforementioned type characterized.
- the second busbar to a flexible conductor and is welded to the flexible conductor and the second connection means.
- the attachment means are electron beam welded. Electron beam welding is particularly advantageous because the weld seams ⁇ be executed in high precision.
- Figure 1 is a cross-sectional view of a power switch according to the invention
- Figure 2 is a detail view in the region of the fixed contact
- FIG. 1 shows a high current switch as a circuit breaker for high current applications in a cross-sectional view.
- the circuit breaker 1 comprises three pole units for the three phases of an alternating current to be switched, of which only one polar unit is shown in FIG. 2.
- the pole unit 2 comprises a pole head 3 and a Polträ ⁇ ger 4, between which a contact system 5 in the form of a vacuum interrupter 5 for switching a current between a first bus bar 6 and a second bus bar 7 of the pole unit 2 is arranged.
- a moving contact 8 of the vacuum ⁇ interrupter 5 is connected via a drive linkage with a drive unit 9 to ⁇ 10 coupled to the circuit breaker, wherein the drive unit 10 is formed for initiating a shifting movement into the moving contact 8 of the contact system.
- the Be ⁇ wegtern 8 is connected by means of second connection means 11 with the second busbar 7.
- a fixed contact 12 of the Va ⁇ kuumschaltrschreibe 5 is electrically connected via first connection means 13 to the first bus bar 6.
- the poi-unit is fixed by means of support means 14 and 15 to a retaining wall 16 of the circuit breaker 1.
- Figure 2 shows a cross-sectional view of a Detaildarstel ⁇ development in the area of the fixed contact 12 of the vacuum interrupter 5.
- the fixed contact 12 of the vacuum interrupter is 5-cylindrical in form of a zy ⁇ bolt with the first connecting means 13 in the form of a copper shaped plate having a bolt of the fixed contact 12 has corresponding recess in the Be ⁇ rich 17 encircling electron beam welded , creating a non-positive and cohesive connection between the fixed contact 12 and the second connection means 13 is formed.
- the second connection means 13 is also electron beam welded to the first busbars 6 in the region 18.
- To stabilize an aluminum spacer 19 is disposed between the busbars.
- FIG 3 shows a detailed view in the region of Bewegkontak ⁇ tes of the vacuum interrupter 5 of the Figure 1.
- the movable contact 8 is connected at its tapered end 20 in the area 21 circumferentially to the second connection means 11 in form of a kupferförmi- gen plate with a bolt 20 of the Moving contact 8 ent ⁇ speaking recess electron beam welded.
- Flexible current conductors 22 and 23 are also electron beam-welded in the areas 24 to the second connection means 11 and beam welded at 26 and 27 electrons with the second bus bar 7 ⁇ .
- the pole head 3 and the pole carrier 4 are provided with cooling bodies 3a and 4a, respectively, which serve to dissipate the heat generated by the high currents in the region of the fixed contact 12 and the moving contact 8, respectively.
- fastening means 28 are provided on the first current ⁇ rail 6 and fastening means 29 on the second current ⁇ rail 7, which are respectively provided for screwing the first busbar 6 and the second busbar 7, for example with busbars of a switchgear.
- the heat sinks 3a and 4a the temperature of the current-carrying parts is lowered such that in the region of the screw 28 and 29, the Temperature is in the required range of less than 65 to 75 degrees Kelvin above ambient temperature.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202006007973U DE202006007973U1 (en) | 2006-05-10 | 2006-05-10 | Power circuit breaker to act as full-load switch has pole unit with pole head and pole carrier and vacuum switching tube in-between with fixed and moving contacts |
PCT/EP2007/054494 WO2007128831A1 (en) | 2006-05-10 | 2007-05-09 | Power switch, especially high-current switch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2016601A1 true EP2016601A1 (en) | 2009-01-21 |
EP2016601B1 EP2016601B1 (en) | 2010-06-30 |
Family
ID=36848650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07728946A Active EP2016601B1 (en) | 2006-05-10 | 2007-05-09 | Power switch, especially high-current switch |
Country Status (10)
Country | Link |
---|---|
US (1) | US20100059479A1 (en) |
EP (1) | EP2016601B1 (en) |
JP (1) | JP2009536429A (en) |
KR (1) | KR20090014291A (en) |
CN (2) | CN201015105Y (en) |
AT (1) | ATE472811T1 (en) |
CA (1) | CA2652047A1 (en) |
DE (2) | DE202006007973U1 (en) |
RU (1) | RU2008148581A (en) |
WO (1) | WO2007128831A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602007013785D1 (en) * | 2007-12-07 | 2011-05-19 | Abb Technology Ag | Low, medium or high voltage gearbox assembly with at least one movable contact |
GB2511569B (en) * | 2013-03-08 | 2015-05-06 | Christopher John Stanton | Improved switch and associated methods |
US9330867B2 (en) * | 2014-05-13 | 2016-05-03 | Eaton Corporation | Vacuum switching apparatus, and electrode extension assembly and associated assembly method therefor |
US9767978B1 (en) * | 2016-05-17 | 2017-09-19 | Eaton Corporation | Medium voltage breaker conductor with an electrically efficient contour |
DE102020210183A1 (en) * | 2020-08-12 | 2022-02-17 | Siemens Energy Global GmbH & Co. KG | High voltage circuit breaker and method of making a high voltage circuit breaker |
DE102020211516A1 (en) * | 2020-09-14 | 2022-03-17 | Siemens Energy Global GmbH & Co. KG | High voltage circuit breaker with contact sleeve and method of manufacturing the high voltage circuit breaker |
DE102020211514B4 (en) * | 2020-09-14 | 2024-02-01 | Siemens Energy Global GmbH & Co. KG | High voltage circuit breaker with shrink connection and method of manufacturing the high voltage circuit breaker |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4153827A (en) * | 1976-01-26 | 1979-05-08 | Merlin Gerin | Magnetic blow-out arc extinguishing device |
FR2339243A1 (en) * | 1976-01-26 | 1977-08-19 | Merlin Gerin | Arc extinguishing device using electromagnetic blowing - has two pairs of mechanically separable contacts and blowing coil |
DE19636237A1 (en) * | 1996-06-21 | 1998-01-02 | Siemens Ag | Low-voltage circuit-breaker switching contact system |
DE19712182A1 (en) * | 1997-03-22 | 1998-09-24 | Abb Patent Gmbh | Vacuum chamber |
DE19819163A1 (en) * | 1998-04-24 | 1999-10-28 | Siemens Ag | Switch contact system for LV load switch |
US6444939B1 (en) * | 2000-05-09 | 2002-09-03 | Eaton Corporation | Vacuum switch operating mechanism including laminated flexible shunt connector |
-
2006
- 2006-05-10 DE DE202006007973U patent/DE202006007973U1/en not_active Expired - Lifetime
- 2006-08-08 CN CNU2006201647734U patent/CN201015105Y/en not_active Expired - Lifetime
-
2007
- 2007-05-09 CA CA002652047A patent/CA2652047A1/en not_active Abandoned
- 2007-05-09 AT AT07728946T patent/ATE472811T1/en active
- 2007-05-09 CN CNA2007800155886A patent/CN101432832A/en active Pending
- 2007-05-09 JP JP2009508384A patent/JP2009536429A/en not_active Withdrawn
- 2007-05-09 US US12/300,130 patent/US20100059479A1/en not_active Abandoned
- 2007-05-09 RU RU2008148581/09A patent/RU2008148581A/en not_active Application Discontinuation
- 2007-05-09 EP EP07728946A patent/EP2016601B1/en active Active
- 2007-05-09 WO PCT/EP2007/054494 patent/WO2007128831A1/en active Application Filing
- 2007-05-09 KR KR1020087030037A patent/KR20090014291A/en not_active Application Discontinuation
- 2007-05-09 DE DE502007004262T patent/DE502007004262D1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2007128831A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20100059479A1 (en) | 2010-03-11 |
DE502007004262D1 (en) | 2010-08-12 |
DE202006007973U1 (en) | 2006-08-03 |
WO2007128831A1 (en) | 2007-11-15 |
CN201015105Y (en) | 2008-01-30 |
EP2016601B1 (en) | 2010-06-30 |
CN101432832A (en) | 2009-05-13 |
KR20090014291A (en) | 2009-02-09 |
RU2008148581A (en) | 2010-06-20 |
JP2009536429A (en) | 2009-10-08 |
CA2652047A1 (en) | 2007-11-15 |
ATE472811T1 (en) | 2010-07-15 |
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