EP1095389A1 - Stromkontaktanordnungen eines stromschalters - Google Patents
Stromkontaktanordnungen eines stromschaltersInfo
- Publication number
- EP1095389A1 EP1095389A1 EP99926225A EP99926225A EP1095389A1 EP 1095389 A1 EP1095389 A1 EP 1095389A1 EP 99926225 A EP99926225 A EP 99926225A EP 99926225 A EP99926225 A EP 99926225A EP 1095389 A1 EP1095389 A1 EP 1095389A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- contact
- conductor loop
- switch
- current conductor
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 230000003628 erosive effect Effects 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 abstract 2
- 238000010606 normalization Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/38—Plug-and-socket contacts
- H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
- H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
Definitions
- the invention is based on current contact arrangements of a current switch according to the preamble of patent claim 1.
- the invention relates to a prior art, as is known from DE 2925162 C2.
- a high-voltage switch is described with a movable contact between an inner and outer fixed contact.
- a contact finger with a contact loop is inserted, which presses against a contact ring of the movable contact piece of the current switch in its closed state by means of a leaf spring.
- a loop contact is arranged on the movable contact piece, which presses against the inner contact piece when the current switch is closed and opens when the current switch is opened after the contact finger has been opened.
- the invention solves the problem of further developing current contact arrangements of a current switch of the type mentioned at the outset in such a way that the current switch can be produced more easily and more cost-effectively.
- An advantage of the invention is that no additional power current path is required in addition to the nominal current path.
- the arc length can be increased with simple means and thus the commutation voltage increased, the switch-off behavior improved and the erosion of the current contacts reduced.
- Fig. 1 in a section a cross section of the upper
- FIG. 2 Current switch in the closed position and FIG. 2 current contact arrangements according to FIG. 1 in the open
- Fig. 1 shows a section of a sectional view of a circular cylindrical rated current contact arrangement of a circuit breaker or current switch in the closed state, with (1) the longitudinal axis is designated.
- a tubular, movable 1st current contact arrangement (K1) and a tubular, fixed 2nd current contact arrangement (K2) have switching contacts (P4) or (Pl) at the end, which can be produced inexpensively by welding profile rings.
- a U-shaped arcing horn (R1) made of an electrically highly conductive material is also arranged at the end of the first current contact arrangement (K1) and an arcing horn or a U-shaped current conductor loop (R2) at the end of the 2nd current contact arrangement (K2) to opposite switching contacts (P2) and (P3) consists of a bimetal.
- the inner part of the bimetal consists of a material with a high elastic constant, preferably of steel (2), and the outer part of an electrically highly conductive material, preferably of copper (3) or a copper alloy.
- the steel component of the current loop (R2) ensures its high radial elasticity; it is shaped so that the current conductor loop (R2) relaxes after a contact separation in the form shown in FIG. 2.
- the current conductor loop (R2) can follow it be sawn on the inside in the radial direction.
- the copper component of the bimetal ensures high electrical conductivity.
- the switching contacts (Pl) - (P4) which lie one above the other in the closed state of the current switch and are pressed by an elastic deformation of the first and second current contact arrangements (Kl, K2), are subjected to different levels of stress by arcing. A silver coating is sufficient for the little stressed switching contacts (Pl) and (P2), while the switching contacts (P3) and (P4) have a coating made of a consumable material.
- the current conductor loop (R2) has a contact end or an arcing horn (3 ') made of copper at the end behind the switch contacts (Pl) and (P2).
- a dashed line (4) through the 1st current contact arrangement (Kl), the switch contacts (Pl) - (P4) and the 2nd current contact arrangement (K2) indicates a symmetrical current path.
- FIG. 2 shows current contact arrangements of the current switch according to FIG. 1 in the open state, the first current contact arrangement (K1) being shifted to the right in the direction of an arrow (5).
- the contact pairs (Pl, P2) are first separated, as a result of which the current commutates into the current conductor loop (R2), as shown in broken lines.
- the contact pair (P3, P4) also disconnects, so that an arc ( ⁇ ) is created, which is driven by the asymmetrical current flow in the current loop (R2) onto the arcing horns (3 *, R1) becomes.
- the arc is thus quickly driven away from the original contact point and is increasingly magnetically blown asymmetrically, so that its operating voltage increases rapidly.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Contacts (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19830232A DE19830232A1 (de) | 1998-07-07 | 1998-07-07 | Stromkontaktanordnungen eines Stromschalters |
DE19830232 | 1998-07-07 | ||
PCT/CH1999/000301 WO2000003406A1 (de) | 1998-07-07 | 1999-07-06 | Stromkontaktanordnungen eines stromschalters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1095389A1 true EP1095389A1 (de) | 2001-05-02 |
EP1095389B1 EP1095389B1 (de) | 2002-03-06 |
Family
ID=7873172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99926225A Expired - Lifetime EP1095389B1 (de) | 1998-07-07 | 1999-07-06 | Stromkontaktanordnungen eines stromschalters |
Country Status (5)
Country | Link |
---|---|
US (1) | US6320149B1 (de) |
EP (1) | EP1095389B1 (de) |
CN (1) | CN1146930C (de) |
DE (2) | DE19830232A1 (de) |
WO (1) | WO2000003406A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6823946B2 (en) | 2000-08-08 | 2004-11-30 | Cera Handelsgesellschaft Mbh | Horse-shoe type, plate-shaped, plastic hoof fitting |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10065091A1 (de) | 2000-12-21 | 2002-06-27 | Siemens Ag | Kontaktanordnung für eine Vakuumschaltröhre |
DE102005004872A1 (de) | 2005-02-03 | 2006-08-10 | Degussa Ag | Wässrige Emulsionen von funktionellen Alkoxysilanen und deren kondensierten Oligomeren, deren Herstellung und Verwendung zur Oberflächenbehandlung |
EP1926112A1 (de) * | 2006-11-23 | 2008-05-28 | ABB Technology AG | Elektrisches Kontaktsystem für ein elektrisches Schaltgerät |
EP2741305A1 (de) * | 2012-12-07 | 2014-06-11 | ABB Technology AG | Hochspannungs-Trenner |
CN104766770B (zh) | 2014-01-07 | 2017-09-08 | 西门子公司 | 断路器的静触头支架及其断路器 |
GB2531349A (en) * | 2014-10-17 | 2016-04-20 | Hawker Siddeley Switchgear Ltd | Circuit breaker with coil for arc displacement |
ES2711795T3 (es) | 2016-05-12 | 2019-05-07 | Evonik Degussa Gmbh | Uso de emulsiones acuosas a base de oligómeros de propiletoxisilano como aditivo en mezclas de cemento que fraguan hidráulicamente para reducir el comportamiento de la contracción |
DE102018216723A1 (de) * | 2018-09-28 | 2020-04-02 | Siemens Aktiengesellschaft | Kontaktanordnung für einen Trennschalter und Verfahren zum elektrischen Kontaktieren der Kontaktanordnung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE480164C (de) | 1927-07-28 | 1929-07-27 | Calor Elek Zitaets Akt Ges | Kontaktanordnung an Selbstschaltern |
US1942678A (en) | 1930-05-20 | 1934-01-09 | Westinghouse Electric & Mfg Co | Circuit interrupter |
US3499126A (en) * | 1968-07-24 | 1970-03-03 | Litton Precision Prod Inc | Electrical contact assembly with ramp guide |
CH645204A5 (de) * | 1979-05-25 | 1984-09-14 | Bbc Brown Boveri & Cie | Elektrischer schalter fuer grosse stroeme. |
DE19517615A1 (de) * | 1995-05-13 | 1996-11-14 | Abb Research Ltd | Leistungsschalter |
DE19816506B4 (de) * | 1998-04-14 | 2008-04-30 | Abb Research Ltd. | Leistungsschalter |
-
1998
- 1998-07-07 DE DE19830232A patent/DE19830232A1/de not_active Withdrawn
-
1999
- 1999-07-06 EP EP99926225A patent/EP1095389B1/de not_active Expired - Lifetime
- 1999-07-06 US US09/743,138 patent/US6320149B1/en not_active Expired - Fee Related
- 1999-07-06 CN CNB998079979A patent/CN1146930C/zh not_active Expired - Fee Related
- 1999-07-06 DE DE59900953T patent/DE59900953D1/de not_active Expired - Fee Related
- 1999-07-06 WO PCT/CH1999/000301 patent/WO2000003406A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0003406A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6823946B2 (en) | 2000-08-08 | 2004-11-30 | Cera Handelsgesellschaft Mbh | Horse-shoe type, plate-shaped, plastic hoof fitting |
Also Published As
Publication number | Publication date |
---|---|
CN1146930C (zh) | 2004-04-21 |
EP1095389B1 (de) | 2002-03-06 |
CN1307726A (zh) | 2001-08-08 |
WO2000003406A1 (de) | 2000-01-20 |
DE19830232A1 (de) | 2000-01-13 |
DE59900953D1 (de) | 2002-04-11 |
US6320149B1 (en) | 2001-11-20 |
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