WO1995033274A1 - Druckgas-leistungsschalter mit einer isolierstoffdüse - Google Patents
Druckgas-leistungsschalter mit einer isolierstoffdüse Download PDFInfo
- Publication number
- WO1995033274A1 WO1995033274A1 PCT/DE1995/000631 DE9500631W WO9533274A1 WO 1995033274 A1 WO1995033274 A1 WO 1995033274A1 DE 9500631 W DE9500631 W DE 9500631W WO 9533274 A1 WO9533274 A1 WO 9533274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- insulating material
- plastic tube
- circuit breaker
- voltage
- Prior art date
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
- H01H33/7076—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by the use of special materials
-
- 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
- H01H33/7061—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid characterised by flow directing elements associated with contacts characterised by use of special mounting means
Definitions
- the invention relates to a compressed gas circuit breaker, in particular for high voltage, with two mutually coaxial switching pieces, at least one of which can be driven in the axial direction, and which limit a switching path in the switched-off state and with at least part of the switching path surrounding insulating nozzle connected to the drivable switching element.
- Such a pressure gas circuit breaker is known for example from US Pat. No. 4,163,131.
- the extinguishing gas pressure in the region of the insulating material nozzle becomes so strong that there is a risk of the nozzle body expanding. This cannot easily be counteracted by producing the nozzle from a more stable material or with a greater wall thickness, since on the one hand the nozzle material is intended to release extinguishing gas even under the action of the arc and on the other hand the extinguishing gas nozzle with the drivable switching element at least when Switch off as quickly as possible, d. H. should be low in mass.
- the invention is therefore based on the object of providing a high-voltage circuit breaker of the type mentioned at the beginning to design that damage to the insulating material nozzle is avoided and the switching speed which is nevertheless as high as possible is ensured.
- the object is achieved according to the invention by a high-strength plastic tube lying on the outer circumference of the insulating material nozzle in its area exposed to the extinguishing gas pressure coaxially with it.
- the pipe according to the invention stabilizes the insulating material nozzle against radial widening as a result of the pressure loads caused by the expanding extinguishing gas.
- the high-strength plastic tube does not have to be made of the same material as the insulating nozzle, since it does not come into contact with the arc and should not release any quenching gas under the influence of the arc.
- a more expensive material can be selected than for the insulating material nozzle, since the plastic pipe has only mechanical stabilization tasks and can accordingly be made small.
- the plastic pipe only needs to be large enough to support the insulating nozzle in the areas of particularly thin walls.
- the plastic tube can also be integrated in the outer periphery of the nozzle body, so that there is little possible protrudes beyond the outer contour of the nozzle. This increases the dielectric strength.
- plastic tube consists of a fiber-reinforced plastic.
- Such a fiber-reinforced plastic tube has a particularly high mechanical stability, in particular against expansion.
- Aramid fibers, glass fibers or plastic fibers can be provided as reinforcing fibers.
- the reinforcement fibers run in the circumferential direction of the plastic tube.
- the reinforcing effect against radial expansion of the plastic pipe is particularly effective.
- the invention can also be advantageously configured in that the plastic tube is arranged in a region of the insulating nozzle with a reduced wall thickness compared to other regions.
- Stabilization of the insulating material nozzle is particularly efficient in this area, whereas it does not appear necessary in other areas in which the wall thickness of the insulating material nozzle is already greater due to thickenings which are provided for fluidic reasons.
- the plastic tube can also advantageously be glued to the insulating nozzle.
- the plastic tube can also advantageously be shrunk onto the insulating nozzle.
- a further advantageous embodiment of the invention provides that the insulating material nozzle is biased radially inwards by the plastic tube.
- the insulating material nozzle then withstands higher pressure loads in its interior particularly well, since the pretension is only released and the neutral form of the insulating material nozzle is achieved with an increased pressure load. As a result, the insulating material nozzle withstands particularly high extinguishing gas pressures.
- the plastic tube is produced by applying a fiber fabric to the insulating nozzle and then impregnating it with an impregnating resin.
- the above-mentioned plastic pipe can be manufactured particularly easily and at the same time be firmly connected to the insulating material nozzle.
- the figure shows schematically a Isolierstoffdüsen- Lei ⁇ tungsschalter in a longitudinal section.
- the figure shows a high-voltage circuit breaker with two coaxially opposed contact pieces 1, 2, of which the second contact piece 2 can be driven in a manner not shown.
- the circuit breaker is shown in the switched-off state.
- the Process pulled an arc, which heats up extinguishing gas, in particular SFg, and thus increases the extinguishing gas pressure.
- the insulating material nozzle 4 is firmly connected to the movable switching element 2, so that it moves with it during the switching-off process.
- the insulating material nozzle 4 delimits an arc space in its interior, as a result of which hot and extinguishing gas which is under high pressure takes place and which later flows back to the area of the arc and into one when the current to be switched is zero Extinguishing the arc or a dielectric solidification of the switching path 3 contributes.
- the insulating material nozzle 4 can advantageously be made of PTFE (polytetrafluoroethylene), since this material releases gases under the action of an arc, which aids in extinguishing the arc.
- PTFE polytetrafluoroethylene
- the insulating material nozzle 4 carries on its outside a plastic tube 9 made of a fiber-reinforced plastic, which is glued onto the insulating material nozzle.
- the plastic tube 9 extends over the area of the insulating material nozzle 4, in which it is particularly thin-walled.
Landscapes
- Circuit Breakers (AREA)
- Cable Accessories (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9507792A BR9507792A (pt) | 1994-05-31 | 1995-05-08 | Interrupter de potência de gás comprimido com um bocal de material isolante |
US08/737,910 US5739495A (en) | 1994-05-31 | 1995-05-08 | Puffer-type circuit breaker and nozzle emitting gas with coaxial abutting plastic tube |
EP95917902A EP0763250B1 (de) | 1994-05-31 | 1995-05-08 | Druckgas-leistungsschalter mit einer isolierstoffdüse |
DE59501227T DE59501227D1 (de) | 1994-05-31 | 1995-05-08 | Druckgas-leistungsschalter mit einer isolierstoffdüse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4420386.1 | 1994-05-31 | ||
DE4420386A DE4420386C2 (de) | 1994-05-31 | 1994-05-31 | Druckgas-Leistungsschalter mit einer Isolierstoffdüse |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995033274A1 true WO1995033274A1 (de) | 1995-12-07 |
Family
ID=6520325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1995/000631 WO1995033274A1 (de) | 1994-05-31 | 1995-05-08 | Druckgas-leistungsschalter mit einer isolierstoffdüse |
Country Status (9)
Country | Link |
---|---|
US (1) | US5739495A (de) |
EP (1) | EP0763250B1 (de) |
CN (1) | CN1068965C (de) |
AT (1) | ATE162007T1 (de) |
BR (1) | BR9507792A (de) |
CA (1) | CA2191590A1 (de) |
DE (2) | DE4420386C2 (de) |
ES (1) | ES2113199T3 (de) |
WO (1) | WO1995033274A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016013022A1 (en) | 2014-07-22 | 2016-01-28 | Bharat Heavy Electricals Limited | Interrupter device with relative dual motion contact system |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29812361U1 (de) | 1998-07-03 | 1998-09-17 | Siemens AG, 80333 München | Hochspannungsschalter |
EP2223308A1 (de) * | 2007-12-21 | 2010-09-01 | ABB Research Ltd. | Schwachleitende düse für einen gasunterbrecherschalter und auf ptfe basierendes material dafür |
WO2013153110A1 (en) * | 2012-04-11 | 2013-10-17 | Abb Technology Ag | Circuit breaker |
WO2018015436A1 (en) * | 2016-07-21 | 2018-01-25 | Abb Schweiz Ag | Gas-insulated high-voltage switching device with improved main nozzle |
DE102018211621A1 (de) * | 2018-07-12 | 2020-01-16 | Siemens Aktiengesellschaft | Gasisolierter Schalter |
EP3618088A1 (de) | 2018-08-30 | 2020-03-04 | ABB Schweiz AG | Düse für hoch- oder mittelspannungsschalter |
EP4187567B1 (de) | 2021-11-24 | 2024-06-12 | General Electric Technology GmbH | Elektrische lichtbogenstrahldüse mit verbesserter mechanischer festigkeit und leistungsschalter mit einer solchen düse |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE733282C (de) * | 1939-09-08 | 1943-03-23 | Aeg | Loeschduese fuer Druckgasschalter |
FR2532779A1 (fr) * | 1982-09-04 | 1984-03-09 | Licentia Gmbh | Buse de soufflage d'arc pour un disjoncteur a gaz comprime autopneumatique |
DE3822410C1 (en) * | 1988-07-01 | 1989-10-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | Sulphur hexa:fluoride compressed gas switch - has thread between nozzle and cylinder to better withstand force and temp. loading without enlargement of actual mass of nozzle |
DE4111932A1 (de) * | 1991-04-12 | 1992-10-15 | Asea Brown Boveri | Isolierstoffduese und verwendung der isolierduese in einem druckgasschalter |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2209287C3 (de) * | 1972-02-22 | 1974-12-12 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Elektrischer Druckgasschalter |
JPS5732451B2 (de) * | 1974-01-16 | 1982-07-10 | ||
US4163131A (en) * | 1977-08-11 | 1979-07-31 | Westinghouse Electric Corp. | Dual-compression gas-blast puffer-type interrupting device |
DE3750514T2 (de) * | 1986-06-06 | 1995-05-04 | Mitsubishi Electric Corp | Schaltvorrichtung. |
DE69113349T2 (de) * | 1990-07-27 | 1996-05-15 | Hitachi Ltd | Gasisolierter Schalter mit Selbstbeblasung. |
JPH0495322A (ja) * | 1990-08-03 | 1992-03-27 | Hitachi Ltd | ガス遮断器 |
-
1994
- 1994-05-31 DE DE4420386A patent/DE4420386C2/de not_active Expired - Fee Related
-
1995
- 1995-05-08 CN CN95192958A patent/CN1068965C/zh not_active Expired - Lifetime
- 1995-05-08 WO PCT/DE1995/000631 patent/WO1995033274A1/de active IP Right Grant
- 1995-05-08 ES ES95917902T patent/ES2113199T3/es not_active Expired - Lifetime
- 1995-05-08 EP EP95917902A patent/EP0763250B1/de not_active Expired - Lifetime
- 1995-05-08 CA CA002191590A patent/CA2191590A1/en not_active Abandoned
- 1995-05-08 AT AT95917902T patent/ATE162007T1/de not_active IP Right Cessation
- 1995-05-08 BR BR9507792A patent/BR9507792A/pt not_active IP Right Cessation
- 1995-05-08 DE DE59501227T patent/DE59501227D1/de not_active Expired - Lifetime
- 1995-05-08 US US08/737,910 patent/US5739495A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE733282C (de) * | 1939-09-08 | 1943-03-23 | Aeg | Loeschduese fuer Druckgasschalter |
FR2532779A1 (fr) * | 1982-09-04 | 1984-03-09 | Licentia Gmbh | Buse de soufflage d'arc pour un disjoncteur a gaz comprime autopneumatique |
DE3822410C1 (en) * | 1988-07-01 | 1989-10-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt, De | Sulphur hexa:fluoride compressed gas switch - has thread between nozzle and cylinder to better withstand force and temp. loading without enlargement of actual mass of nozzle |
DE4111932A1 (de) * | 1991-04-12 | 1992-10-15 | Asea Brown Boveri | Isolierstoffduese und verwendung der isolierduese in einem druckgasschalter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016013022A1 (en) | 2014-07-22 | 2016-01-28 | Bharat Heavy Electricals Limited | Interrupter device with relative dual motion contact system |
Also Published As
Publication number | Publication date |
---|---|
ATE162007T1 (de) | 1998-01-15 |
DE4420386C2 (de) | 1998-07-02 |
EP0763250B1 (de) | 1998-01-07 |
BR9507792A (pt) | 1997-09-23 |
ES2113199T3 (es) | 1998-04-16 |
EP0763250A1 (de) | 1997-03-19 |
DE59501227D1 (de) | 1998-02-12 |
CA2191590A1 (en) | 1995-12-07 |
CN1068965C (zh) | 2001-07-25 |
DE4420386A1 (de) | 1995-12-07 |
CN1147878A (zh) | 1997-04-16 |
US5739495A (en) | 1998-04-14 |
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