EP1105898A1 - Hochspannungsleistungsschalter mit einer unterbrechereinheit - Google Patents
Hochspannungsleistungsschalter mit einer unterbrechereinheitInfo
- Publication number
- EP1105898A1 EP1105898A1 EP99945882A EP99945882A EP1105898A1 EP 1105898 A1 EP1105898 A1 EP 1105898A1 EP 99945882 A EP99945882 A EP 99945882A EP 99945882 A EP99945882 A EP 99945882A EP 1105898 A1 EP1105898 A1 EP 1105898A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- flow
- circuit breaker
- voltage circuit
- extinguishing gas
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/7015—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H2033/888—Deflection of hot gasses and arcing products
-
- 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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Definitions
- the invention relates to a high-voltage circuit breaker with an interrupter unit, which is enclosed at a distance by a gas-tight, extinguishing gas-filled housing, the interrupter unit having two arcing contacts, at least one of which can be driven in the switching case
- Such a high-voltage circuit breakers for example, from German Utility Model G 93 14 779.1 German Offenlegungsschrift DE 29 47 957. and from '20th
- an arc which arises between the arcing contacts is usually blown with an extinguishing gas, for example sulfur hexafluoride, which is usually also used as an extinguishing gas.
- an extinguishing gas for example sulfur hexafluoride, which is usually also used as an extinguishing gas.
- the quenching gas flowing over the arc is strongly heated in the area of the arc and thereafter at least partially flows out into an expansion space in the axial direction of the arc contacts.
- the expansion space is limited by the housing of the scanner, which consists, for example, of a porcelain or a composite insulation material.
- the quenching gas can still contaminate the inner wall of the housing even after passing through such a cow device, for example by conductive layers being deposited on the inner wall of the housing.
- the present invention is therefore based on the object to provide a switch of the type mentioned, in which the quenching gas is sufficiently cooled after blowing the arc before it flows into the expansion space.
- the object is achieved according to the invention in that the flow deflection device deflects the flow of extinguishing gas radially outwards by more than 90 °.
- the extinguishing gas is not directed radially outward directly onto the inner wall of the housing, but rather flows axially out of the flow deflection device, at least with a component directed backwards, out of it. This considerably extends the flow path until it strikes the inner wall of the housing. There is therefore sufficient cooling of the extinguishing gas until it hits the inner wall of the housing.
- An advantageous embodiment of the invention provides that a nozzle body is integrated in the flow deflection device.
- the extinguishing gas flows out of the flow deflection device at high speed and can thus be effectively distributed in the expansion space.
- the nozzle body achieves targeted control of the flow of extinguishing gas, thereby preventing turbulence or back pressure of the extinguishing gas in the flow deflection device.
- a further advantageous embodiment of the invention provides that the flow deflecting device is designed to be cylindrically symmetrical and arranged coaxially with the license arc contacts.
- a cylinder-symmetrical design of the flow deflection device is particularly advantageous both in terms of production technology and construction.
- a further advantageous embodiment of the invention provides that the nozzle body is fastened to a cylindrical partition wall which separates the flow of extinguishing gas before the deflection from the flow of extinguishing gas after the deflection.
- the entire amount of extinguishing gas is to be forced through the flow deflection device.
- the invention can also advantageously be designed in such a way that the nozzle body has a convex region which faces a concave region of the flow deflection device and that a narrow-gap nozzle constriction is formed between these regions.
- This construction forms a simple and effective nozzle to accelerate the gas flow.
- a further advantageous embodiment of the invention provides that a deflection gas cooling device in the form of a body having openings is arranged downstream of the deflection device in the sense of the flow of extinguishing gas.
- the extinguishing gas flow is further cooled by such an extinguishing gas cooling device.
- cooling should also be understood to mean deionization of the extinguishing gas.
- An extinguishing gas cooling device can be implemented, for example, by a sponge-like metallic body, which can be designed to be particularly cylinder-symmetrical.
- the quenching gas cooling device is followed by a further deflection device for the quenching gas.
- the extinguishing gas is cooled further before it hits the inner wall of the housing.
- the flow deflection device and / or the nozzle body consists of an insulating material, in particular PTFE or PVDF.
- the ionized extinguishing gas strikes the insulating material, it can, particularly if it is PTFE (polytetrafluoroethylene), also add additional gas which cools the extinguishing gas.
- PTFE polytetrafluoroethylene
- the figure shows schematically in longitudinal section the interrupter unit of a high-voltage circuit breaker.
- the figure shows an interrupter unit of a high-voltage circuit breaker with a first, drivable arcing contact 1, to which a second, fixed the arcing contact 2 faces.
- the first arcing contact 1 is coaxially surrounded by a first nominal current contact 3, which can also be driven, while the second arcing contact 2 is coaxially surrounded by a fixed second nominal current contact 4.
- An insulating material nozzle 5 which has a channel 6 in the form of an annular gap, is firmly connected to the first arcing contact 1.
- a mechanical compression device for the extinguishing gas can be provided, which ensures extinguishing gas blowing of the arc, in particular in the case of low-current arcs.
- the quenching gas begins to flow out of the insulating material nozzle 5 in the axial direction in the direction of the second arcing contact. On Part of the extinguishing gas flows out in the opposite direction through the hollow first arcing contact.
- the extinguishing gas flow which takes place in the direction of the fixed arcing contact 2 leads the extinguishing gas to a flow deflection device 9 which has a first PTFE body 10 and a nozzle body 11 likewise made of PTFE.
- the nozzle body is attached to a partition wall 12 which coaxially surrounds the fixed arcing contact 2.
- An annular gap-shaped nozzle constriction 12 is formed between the nozzle body 11 and the body 10. There, the flow of degassing gas has the highest speed, in order to then expand when the cross section of the nozzle is expanded, which leads to a reduction in the speed and to an impact on the extinguishing gas cooling device 13 at a reduced speed.
- the quenching gas cooling device 13 is formed by a hollow cylindrical metal braid which has passage openings for the quenching gas.
- the quenching gas cooling device can advantageously consist of copper, for example.
- the flow deflection device 9 causes the flow of extinguishing gas to be deflected by approximately 180 °.
- the quenching gas then flows tangentially past and partly through the quenching gas cooling device.
- the passage through the quench gas cooling device takes place at a reduced radial speed, so that effective cooling is ensured.
- a further deflection device 14 in the form of a cylindrical partition wall is provided behind the quenching gas cooling device 13, which prevents the outgoing gas from flowing directly out of the quenching gas cooling device 13 to the inner wall 15 of the housing 16.
- the extinguishing gas can thus enter the expansion space 17 occur in a pre-cooled state and at a reduced radial speed.
Landscapes
- Circuit Breakers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19832709 | 1998-07-14 | ||
DE19832709A DE19832709C5 (de) | 1998-07-14 | 1998-07-14 | Hochspannungsleistungsschalter mit einer Unterbrechereinheit |
PCT/DE1999/002031 WO2000004565A1 (de) | 1998-07-14 | 1999-06-30 | Hochspannungsleistungsschalter mit einer unterbrechereinheit |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1105898A1 true EP1105898A1 (de) | 2001-06-13 |
EP1105898B1 EP1105898B1 (de) | 2002-09-18 |
Family
ID=7874769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99945882A Expired - Lifetime EP1105898B1 (de) | 1998-07-14 | 1999-06-30 | Hochspannungsleistungsschalter mit einer unterbrechereinheit |
Country Status (4)
Country | Link |
---|---|
US (1) | US6717791B1 (de) |
EP (1) | EP1105898B1 (de) |
DE (2) | DE19832709C5 (de) |
WO (1) | WO2000004565A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2608173C2 (ru) * | 2011-09-28 | 2017-01-17 | Сименс Акциенгезелльшафт | Размыкающий блок силового выключателя |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10156535C1 (de) * | 2001-11-14 | 2003-06-26 | Siemens Ag | Leistungsschalter |
DE10221580B3 (de) | 2002-05-08 | 2004-01-22 | Siemens Ag | Unterbrechereinheit eines Hochspannungs-Leistungsschalters |
DE502004004571D1 (de) | 2004-06-07 | 2007-09-20 | Abb Technology Ag | Leistungsschalter |
US7292422B2 (en) * | 2004-11-29 | 2007-11-06 | Siemens Energy & Automation, Inc. | Occupancy-based circuit breaker control |
DE502005009041D1 (de) | 2005-09-26 | 2010-04-01 | Abb Technology Ag | Hochspannungsschalter mit verbesserter Schaltleistung |
ATE407442T1 (de) * | 2006-02-28 | 2008-09-15 | Abb Research Ltd | Schaltkammer eines hochspannungsschalters mit einem heizvolumen zur aufnahme von schaltlichtbogenerzeugtem löschgas |
ATE508466T1 (de) | 2006-03-14 | 2011-05-15 | Abb Technology Ag | Schaltkammer für einen gasisolierten hochspannungsschalter |
DE102006019383A1 (de) * | 2006-04-24 | 2007-10-25 | Siemens Ag | Unterbrechereinheit eines elektrischen Schaltgerätes |
ATE457520T1 (de) * | 2006-12-06 | 2010-02-15 | Abb Research Ltd | Hochspannungsschalter mit einem isoliergasgefüllten metallbehälter |
DE102008039813A1 (de) * | 2008-08-25 | 2010-03-04 | Siemens Aktiengesellschaft | Hochspannungs-Leistungsschalter mit einer Schaltstrecke |
EP2180492B1 (de) * | 2008-10-22 | 2013-12-04 | ABB Technology AG | Schaltkammer für einen Hochspannungsschalter sowie Hochspannungsschalter |
WO2017032667A1 (en) | 2015-08-21 | 2017-03-02 | Abb Schweiz Ag | Electrical switching device and process for cooling a switching medium in an electrical switching device |
EP3503153B1 (de) * | 2017-12-22 | 2021-09-01 | ABB Power Grids Switzerland AG | Gasisolierter hoch- oder mittelspannungsleistungsschalter |
RU186667U1 (ru) * | 2018-08-27 | 2019-01-29 | Закрытое акционерное общество "Завод электротехнического оборудования" (ЗАО "ЗЭТО") | Выключатель с газовой изоляцией |
RU186703U1 (ru) * | 2018-10-16 | 2019-01-30 | Закрытое акционерное общество "Завод электротехнического оборудования" (ЗАО "ЗЭТО") | Высоковольтный выключатель с газовой изоляцией |
DE102018219832A1 (de) | 2018-11-20 | 2020-05-20 | Siemens Aktiengesellschaft | Unterbrechereinheit eines Leistungsschalters |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1334851A (fr) * | 1961-10-02 | 1963-08-09 | Thomson Houston Comp Francaise | Disjoncteur à soufflage de gaz équipé d'un pot d'échappement pour réduire le bruit |
CH556602A (de) * | 1973-01-12 | 1974-11-29 | Sprecher & Schuh Ag | Druckgasschalter. |
JPS5438572A (en) * | 1977-09-02 | 1979-03-23 | Hitachi Ltd | Buffer type gas circuit breaker |
DE2819599A1 (de) | 1978-05-05 | 1979-11-08 | Licentia Gmbh | Elektrischer leistungsschalter mit rotierendem lichtbogen |
CH645753A5 (en) * | 1979-05-22 | 1984-10-15 | Sprecher & Schuh Ag | Gas-blast circuit breaker |
CH643087A5 (en) * | 1979-11-30 | 1984-05-15 | Sprecher & Schuh Ag | Gas-blast circuit breaker |
CH655612B (de) * | 1981-09-18 | 1986-04-30 | ||
DE3275041D1 (en) * | 1981-09-30 | 1987-02-12 | Sprecher Energie Ag | Compressed-gas circuit breaker |
NO855379L (no) * | 1985-02-27 | 1986-08-28 | Bbc Brown Boveri & Cie | Trykkgassbryter. |
DE9314779U1 (de) * | 1993-09-24 | 1993-11-25 | Siemens AG, 80333 München | Hochspannungs-Leistungsschalter mit einer Kühleinrichtung zur Kühlung des Löschgases |
DE19517540A1 (de) * | 1995-05-12 | 1996-11-14 | Abb Research Ltd | Löschgasabgebender Werkstoff und Druckgasschalter mit einem solchen Werkstoff |
-
1998
- 1998-07-14 DE DE19832709A patent/DE19832709C5/de not_active Expired - Fee Related
-
1999
- 1999-06-30 US US09/743,417 patent/US6717791B1/en not_active Expired - Fee Related
- 1999-06-30 EP EP99945882A patent/EP1105898B1/de not_active Expired - Lifetime
- 1999-06-30 DE DE59902781T patent/DE59902781D1/de not_active Expired - Lifetime
- 1999-06-30 WO PCT/DE1999/002031 patent/WO2000004565A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO0004565A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2608173C2 (ru) * | 2011-09-28 | 2017-01-17 | Сименс Акциенгезелльшафт | Размыкающий блок силового выключателя |
Also Published As
Publication number | Publication date |
---|---|
DE59902781D1 (de) | 2002-10-24 |
DE19832709C5 (de) | 2006-05-11 |
DE19832709A1 (de) | 2000-01-27 |
EP1105898B1 (de) | 2002-09-18 |
DE19832709C2 (de) | 2000-12-07 |
US6717791B1 (en) | 2004-04-06 |
WO2000004565A1 (de) | 2000-01-27 |
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