WO2004032167A1 - Anordnung mit einem niederspannungs-leistungsschalter und einem mit einem trageelement versehenen schaltgasdämpfer für den niederspannungs-leistungsschalter - Google Patents
Anordnung mit einem niederspannungs-leistungsschalter und einem mit einem trageelement versehenen schaltgasdämpfer für den niederspannungs-leistungsschalter Download PDFInfo
- Publication number
- WO2004032167A1 WO2004032167A1 PCT/DE2003/002882 DE0302882W WO2004032167A1 WO 2004032167 A1 WO2004032167 A1 WO 2004032167A1 DE 0302882 W DE0302882 W DE 0302882W WO 2004032167 A1 WO2004032167 A1 WO 2004032167A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas damper
- switching
- switching gas
- low
- voltage circuit
- Prior art date
Links
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
- H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
- H01H9/342—Venting arrangements for arc chutes
Definitions
- the invention is in the field of electrical switches and can be used in the design of a switching gas damper for low-voltage circuit breakers, in particular for low-voltage circuit breakers that can be inserted in low-voltage switchgear.
- Air-switching low-voltage circuit breakers require an arc extinguishing device to operate in order to extinguish switching arcs without affecting the circuit breaker itself and adjacent system parts or other assemblies.
- an arc extinguishing device to operate in order to extinguish switching arcs without affecting the circuit breaker itself and adjacent system parts or other assemblies.
- Flow path of the switching gases is arranged downstream of the quenching chamber.
- DE 35 41 514 C2 proposes to place an attachment on the arc quenching chamber that receives a number of perforated inserts, which can be, for example, sheets or sections of a wire mesh provided with closely adjacent perforations.
- a number of perforated inserts can be, for example, sheets or sections of a wire mesh provided with closely adjacent perforations.
- From DE 19 54 066 A an arrangement with a low-voltage circuit breaker and a switching gas damper provided with a supporting element for the low-voltage circuit breaker is known, in which the switching gas damper is located above an arc quenching chamber of the low-voltage circuit breaker.
- Circuit breaker is arranged and has at least one inlet opening for switching gases and at least one outlet opening for damped or endionized switching gases and in which the support element directly adjacent to the arc quenching chamber can be fastened to a housing receiving the low-voltage circuit breaker and at least one receiving space for a flow resistance for the Forming switching gas flow element, wherein the support element forms the at least one inlet opening.
- the invention has for its object to provide a switching gas damper of the generic type, which is characterized by a simple and compact structure and does not enlarge the intended blow-out space (expansion space above the arc chamber).
- this object is achieved by a switching gas damper with the features mentioned in claim 1.
- the switching gas damper can be easily equipped with the flow element and in a confined space Precautions for safe damping and endionization of the switching gases can be taken.
- the support element of the switching gas damper and thus the switching gas damper as a whole is preferably fastened to a slide-in frame for the circuit breaker.
- the switching gas damper is designed independently of the low-voltage circuit breaker and regardless of the design of the interior of a switching cell above the slide-in frame and can be attached to the north. In this respect, it is easy to adapt the design and size to different plug-in frames or to different low-voltage
- the switching gas damper according to the invention is characterized by great flexibility in terms of its structure and arrangement.
- the receiving space for the flow element is formed by a trough-shaped depression of the support element.
- the trough-shaped depression serves at the same time to position the at least one flow element in a precise position, so that functional impairments due to displacement or incorrect placement of the flow elements are prevented.
- a base of the trough-shaped depression forms an inlet opening for the switching gases into the switching gas damper at the same time, forming an at least partially circumferential retaining web.
- the at least one flow element is formed by steel wire nets which are preferably arranged in layers.
- the support element forms a number of receiving spaces for flow elements that corresponds to the number of switching poles of the low-voltage circuit breaker. This enables each switching pole to be assigned its own switching gas damper, which can be integrated into the low-voltage switchgear as a common, compact component.
- the support element on its side facing the arc quenching chamber has at least one groove-like depression, preferably encircling the inlet openings for the switching gases.
- These at least one, preferably several, in particular also intersecting depressions increase the creepage distances, so that sufficient insulation strength is maintained between the poles of the switching gas damper even after sooting of the support element, for example in the event of a short-circuit shutdown.
- an improper gas labyrinth is created for the switching gas, which forms a flow resistance for the switching gases, so that they are thus reliably fed to the at least one inlet opening of the switching gas damper.
- the arrangement of additional baffles or the like, which may require additional installation space, is therefore not necessary. Further, preferred embodiments of the invention result from the other features mentioned in the subclaims.
- FIG. 1 shows a perspective view of an arrangement which comprises a slide-in frame provided with a switching gas damper and a pushed-out low-voltage circuit breaker;
- Figure 2 is an exploded view of a switching gas damper
- the low-voltage circuit breaker 1 shows a slide-in frame designated by 10 and a low-voltage circuit breaker designated by 1.
- the low-voltage circuit breaker 1 can be inserted into a switch cell (not shown) of a low-voltage switchgear cabinet or a low-voltage switchgear assembly by means of the slide-in frame 10.
- Circuit breaker itself is not shown completely because its structure and mode of operation are generally known.
- the arc quenching chambers 2 of the low-voltage circuit breaker 1 are assigned a switching gas damper, designated as a whole by 12.
- the switching gas damper 12 is arranged above the arc quenching chamber, directly adjacent to it, in such a way that outlet openings 5 of the arc quenching chamber 2 face the switching gas damper.
- the switching gas damper 12 itself is provided with fastening elements 14, which can be formed, for example, by screw connections, snap-in connections or the like Side walls 3, 4 of the slide-in frame 10 are non-positively connected.
- FIG. 2 shows an exploded view of the shift gas damper 12.
- the shift gas damper 12 comprises a support element 16, via which the shift gas damper 12 is fastened to the slide-in frame 10 by means of the fastening elements 14.
- the switching gas damper 12 can be positioned by means of spacer elements 18. By choosing the size, in particular the height, of the spacer elements 18, a distance of
- Switching gas damper 12 here in particular the underside 20 of the switching gas damper 12, to the arc quenching chamber of the low-voltage circuit breaker is possible.
- This distance is chosen as small as possible and is, for example, approximately 1 mm.
- the support element 16 consists, for example, of a hardboard or a thermoset material.
- the support element 16 has three openings 22. On the underside 20 of the support element 16, the openings 22 form inlet openings 24 for the switching gases emerging from the arc quenching chamber.
- the inlet openings 24 are delimited by a web 26 on the edge. According to the embodiment variant shown, the web 26 is formed all around the edge of the openings 22. This results in the formation of trough-shaped depressions 28 within the support element 16. At their bottom, the trough-shaped depressions 28 are thus delimited by the web 26 and the inlet openings 24.
- a web 26 can be provided, for example, only on opposite narrow sides or long sides. It is also possible not to form the web 26 continuously, but to form it from spaced apart, jagged projections or the like. This will increase the ef- fective entry opening 24 possible without the openings 22 are enlarged.
- Flow elements 30 of substantially planar design are introduced into the trough-shaped depressions 28.
- the flow elements 30 are formed, for example, by steel wire networks. These can be single-layer or multi-layer. If appropriate, the steel wire nets are folded in a meandering manner and are introduced into the trough-shaped depressions 28 on a block. Instead of the steel wire nets, other flow elements, for example perforated plates, mat elements or the like, can also be introduced.
- the height of the flow elements 30 corresponds to the height of the trough-shaped recesses 28. That is, the flow elements 30 lie within the trough-shaped recess 28 on the webs 26 and their surface is essentially flush with the surface of the support element 16.
- the switching gas damper 12 also includes closing elements 32 which can be non-positively connected to the supporting element 16 by means of fastening elements 34, for example screws.
- the flow elements 30 are fixed in the trough-shaped depressions 28 by means of the closing elements 32.
- the closure elements 32 have openings 36, which can be designed, for example, as slots (as shown), as holes, elongated holes or the like. The sum of the areas of the openings 36 of a closing element 32 thus forms the outlet opening for the switching gases from the switching gas damper 12.
- the switching gas damper 12 has an overall very compact, in particular a structure that requires a small installation height.
- the switching gas damper 12 is thus also in low-voltage Switchgear, especially in slide-in frames for low-voltage circuit breakers, can be integrated, which only have a limited installation space available.
- Switching gas damper 12 three flow paths for switching gases, for example for a three-pole low-voltage circuit breaker.
- the number of flow paths can vary. It is therefore conceivable to also provide a flow path for a multi-pole low-voltage circuit breaker. The number of openings 22 as well as the flow elements 30 and the closing elements 32 would be reduced accordingly.
- FIG. 3 again shows different views of the switching gas damper 12, a side view being shown in FIG. 3a, a bottom view in FIG. 3b, a front view in FIG. 3c and a top view in FIG. 3d.
- the same parts as in the previous figures are provided with the same reference numerals and are not explained again.
- groove-like depressions 38 are provided on the underside 20 of the support element 16, which enclose the inlet opening 24.
- two depressions 38 arranged parallel to one another are provided in the longitudinal extent of the switching gas damper 12 and three depressions 38 arranged parallel to one another in the transverse extent. These cross accordingly.
- Example with short-circuit shutdowns sufficient insulation strength between the poles of the switching gas damper preserved.
- a fake gas labyrinth is formed for the switching gas for the switching gases emerging from the arc quenching chambers of the low-voltage circuit breakers.
- the depressions 38 thus form a flow resistance for the switching gases and thus form quasi guiding elements for the switching gases, so that they can flow into the respectively assigned inlet opening 24.
Landscapes
- Circuit Breakers (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03753267A EP1547108B1 (de) | 2002-09-30 | 2003-08-28 | Anordnung mit einem niederspannungs-leistungsschalter und einem mit einem trageelement versehenen schaltgasd mpfer f r d en niederspannungs-leistungsschalter |
US10/529,499 US7368679B2 (en) | 2002-09-30 | 2003-08-28 | Arrangement comprising a low voltage power switch and a switching gas damper provided with a carrier element and used for the low voltage power switch |
DE50306598T DE50306598D1 (de) | 2002-09-30 | 2003-08-28 | Anordnung mit einem niederspannungs-leistungsschalter und einem mit einem trageelement versehenen schaltgasd mpfer f r d en niederspannungs-leistungsschalter |
HK05111313A HK1079334A1 (en) | 2002-09-30 | 2005-12-09 | Arrangement comprising a low voltage power switch and a switching gas damper provided with a carrierelement and used for the low voltage power switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20215343U DE20215343U1 (de) | 2002-09-30 | 2002-09-30 | Anordnung mit einem Niederspannungs-Leistungsschalter und einem mit einem Trageelement versehenen Schaltgasdämpfer für den Niederspannungs-Leistungsschalter |
DE20215343.6 | 2002-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004032167A1 true WO2004032167A1 (de) | 2004-04-15 |
Family
ID=7975728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002882 WO2004032167A1 (de) | 2002-09-30 | 2003-08-28 | Anordnung mit einem niederspannungs-leistungsschalter und einem mit einem trageelement versehenen schaltgasdämpfer für den niederspannungs-leistungsschalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US7368679B2 (de) |
EP (1) | EP1547108B1 (de) |
CN (1) | CN100358066C (de) |
DE (2) | DE20215343U1 (de) |
HK (1) | HK1079334A1 (de) |
WO (1) | WO2004032167A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2149893A1 (de) * | 2008-07-30 | 2010-02-03 | EATON Corporation | Elektrische Schaltvorrichtung sowie Bogenschachtbaugruppe und Lichtbogenbaugruppe dafür |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004053613B4 (de) * | 2004-11-02 | 2006-09-28 | Siemens Ag | Schaltanlage mit einer entriegelnden Lichtbogenbegrenzung |
US7488915B2 (en) * | 2006-09-20 | 2009-02-10 | Eaton Corporation | ARC baffle, and ARC chute assembly and electrical switching apparatus employing the same |
US7586058B2 (en) * | 2007-04-27 | 2009-09-08 | Eaton Corporation | Electrical switching apparatus, and ARC hood assembly and chimney therefor |
EP3278411B1 (de) * | 2015-04-03 | 2021-05-26 | Eaton Intelligent Power Limited | Niederspannungs-schaltschrank mit verringertem risiko für das auftreten eines störlichtbogens |
CN107171191B (zh) | 2016-03-07 | 2021-02-26 | Abb瑞士股份有限公司 | 具有互连的排气系统的开关装置封壳 |
FR3098008A1 (fr) * | 2019-06-26 | 2021-01-01 | Schneider Electric Industries Sas | Appareil électrique de commutation comportant un dispositif de filtrage |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1954066A1 (de) * | 1969-10-23 | 1971-04-29 | Siemens Ag | Elektrische Kontaktanordnung zur Unterbrechung eines Stromkreises unter Lichtbogenbildung |
DE3541514A1 (de) * | 1985-11-21 | 1987-05-27 | Siemens Ag | Lichtbogenloeschkammer mit einem aufsatz zur weiteren abkuehlung austretender gase |
EP0437151A1 (de) * | 1989-12-11 | 1991-07-17 | Schneider Electric Sa | Mehrpoliger Ausschalter mit einem allen Polen gemeinsamen Gasfilter |
DE29807119U1 (de) * | 1998-04-09 | 1998-06-18 | Siemens AG, 80333 München | Niederspannungs-Leistungsschalter mit einer Lichtbogenlöscheinrichtung |
US6248971B1 (en) * | 1998-05-12 | 2001-06-19 | Schneider Electric Sa | Circuit breaker with parallel connected pole compartments |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2165942A1 (de) | 1971-12-30 | 1973-07-05 | Siemens Ag | Elektrische schaltanlage mit einem ein- und ausfahrbaren leistungsschalter |
FR2624649B1 (fr) * | 1987-12-10 | 1990-04-06 | Merlin Gerin | Disjoncteur multipolaire de calibre eleve constitue par deux boitiers accoles |
US4876424A (en) * | 1988-09-19 | 1989-10-24 | Siemens Energy & Automation, Inc. | Barrier with a venting scheme for a circuit breaker |
DE19638948A1 (de) | 1996-09-16 | 1998-03-19 | Siemens Ag | Fahrbar angeordneter Leistungsschalter mit einem Ausblasdämpfer |
DE19920042C1 (de) | 1999-04-23 | 2001-01-18 | Siemens Ag | Schaltgasdämpfer für Niederspannungs-Leistungsschalter |
DE10033936A1 (de) * | 2000-07-05 | 2002-01-17 | Siemens Ag | Niederspannungs-Leistungsschalter mit einer Lichtbogenlöschkammer und mit einem Schaltgasdämpfer |
DE10036370B4 (de) | 2000-07-18 | 2009-07-09 | Siemens Ag | Lichtbogenlöscheinrichtung mit einem Aufsatz für Niederspannungs-Schaltgeräte |
US6762389B1 (en) * | 2003-04-17 | 2004-07-13 | Eaton Corporation | Gas discharge filter for electrical switching apparatus |
-
2002
- 2002-09-30 DE DE20215343U patent/DE20215343U1/de not_active Expired - Lifetime
-
2003
- 2003-08-28 US US10/529,499 patent/US7368679B2/en not_active Expired - Lifetime
- 2003-08-28 CN CNB038231794A patent/CN100358066C/zh not_active Expired - Fee Related
- 2003-08-28 EP EP03753267A patent/EP1547108B1/de not_active Expired - Fee Related
- 2003-08-28 WO PCT/DE2003/002882 patent/WO2004032167A1/de active IP Right Grant
- 2003-08-28 DE DE50306598T patent/DE50306598D1/de not_active Expired - Lifetime
-
2005
- 2005-12-09 HK HK05111313A patent/HK1079334A1/xx not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1954066A1 (de) * | 1969-10-23 | 1971-04-29 | Siemens Ag | Elektrische Kontaktanordnung zur Unterbrechung eines Stromkreises unter Lichtbogenbildung |
DE3541514A1 (de) * | 1985-11-21 | 1987-05-27 | Siemens Ag | Lichtbogenloeschkammer mit einem aufsatz zur weiteren abkuehlung austretender gase |
EP0437151A1 (de) * | 1989-12-11 | 1991-07-17 | Schneider Electric Sa | Mehrpoliger Ausschalter mit einem allen Polen gemeinsamen Gasfilter |
DE29807119U1 (de) * | 1998-04-09 | 1998-06-18 | Siemens AG, 80333 München | Niederspannungs-Leistungsschalter mit einer Lichtbogenlöscheinrichtung |
US6248971B1 (en) * | 1998-05-12 | 2001-06-19 | Schneider Electric Sa | Circuit breaker with parallel connected pole compartments |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2149893A1 (de) * | 2008-07-30 | 2010-02-03 | EATON Corporation | Elektrische Schaltvorrichtung sowie Bogenschachtbaugruppe und Lichtbogenbaugruppe dafür |
Also Published As
Publication number | Publication date |
---|---|
EP1547108A1 (de) | 2005-06-29 |
US20060138089A1 (en) | 2006-06-29 |
DE50306598D1 (de) | 2007-04-05 |
EP1547108B1 (de) | 2007-02-21 |
US7368679B2 (en) | 2008-05-06 |
CN1685457A (zh) | 2005-10-19 |
DE20215343U1 (de) | 2003-01-30 |
CN100358066C (zh) | 2007-12-26 |
HK1079334A1 (en) | 2006-03-31 |
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