SK287234B6 - Arcing chamber of breaker - Google Patents
Arcing chamber of breaker Download PDFInfo
- Publication number
- SK287234B6 SK287234B6 SK5099-2005A SK50992005A SK287234B6 SK 287234 B6 SK287234 B6 SK 287234B6 SK 50992005 A SK50992005 A SK 50992005A SK 287234 B6 SK287234 B6 SK 287234B6
- Authority
- SK
- Slovakia
- Prior art keywords
- housing
- openings
- extinguishing chamber
- chamber according
- deionization plates
- Prior art date
Links
- 238000002242 deionisation method Methods 0.000 claims abstract description 27
- 239000003302 ferromagnetic material Substances 0.000 claims abstract description 5
- 238000010791 quenching Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 238000010891 electric arc Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
Classifications
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- 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
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- 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
-
- 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
-
- 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
- H01H33/02—Details
- H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
- H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
-
- 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
-
- 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
- H01H2009/348—Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber
-
- 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
- H01H9/36—Metal parts
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Breakers (AREA)
Abstract
Description
Vynález sa týka prúdových ističov, ktoré automaticky prerušujú elektrický obvod potom, keď hodnota priechodu prúdu prekročí určitú, pre tento istič nastavenú hranicu. Osobitne ide o zhášacie komory pre také ističe, kde má v týchto komorách dôjsť k urýchlenému zhášaniu elektrického oblúka, ktorý sa vytvorí po vzájomnom oddialení kontaktov spínača v tomto ističi.The invention relates to circuit breakers which automatically interrupt the electrical circuit when the current passage value exceeds a certain threshold set for that circuit breaker. In particular, they are quenching chambers for such circuit breakers, where in these chambers there is to be an accelerated quenching of the electric arc which is formed after the contacts of the switch in the circuit breaker have been spaced apart.
Doterajší stav technikyBACKGROUND OF THE INVENTION
V súčasnosti sú známe mnohé zhášacie komory prúdových ističov, pričom obvyklou konštrukciou býva vyhotovenie zhášacích komôr ako skrine, rozdelené do viacerých oddielov, medzi ktorými ležia priehradky v tvare doštičiek. Taká komora býva spravidla na vstupnej strane otvorená, pričom k otvoreniu je smerovaný elektrický oblúk od prúdových kontaktov. Pri rozpojení kontaktov dôjde k zapáleniu elektrického oblúka, kde ionizované plyny jednak expandujú v priestore okolo kontaktov, jednak elektrický oblúk postupuje do zhášacej komory, kde je snaha čo najrýchlejšie oblúk zahasiť. Ku zhášaniu oblúka dochádza práve v jednotlivých oddieloch zhášacej komory, kde sa pôvodne vyššie napätie rozdelí na sériu nižších napätí na jednotlivých oddieloch, pričom tieto nižšie napätia už neumožnia udržanie oblúka, ktorý sa takto zháša. Pre odolnosť a životnosť celého ističa je dôležité, aby bol oblúk zhášaný čo najrýchlejšie, k čomu pri známych konštrukciách prispieva vytvorenie výfukových otvorov v zhášacej komore. Tieto otvory bývajú vytvorené buď v zadnej stene zhášacej komory, alebo v bočných stenách zhášacej komory, pričom odvod plynov sa uskutočňuje v oboch menovaných variantoch mimo vnútorný priestor ističa. Tak sa síce dosahujú pomerne dobré výsledky v rýchlosti zhášania oblúkov, resp. v dosahovaných časoch rozpojenia obvodu, ale stále tu existujú rezervy v rýchlosti odvodu plynov zo zhášacej komory, kde by také zlepšenie mohlo ešte zvýšiť skratovú zaťažiteľnosť ističa a tiež jeho živnostnosť z pohľadu opakovaných rozopnutí pri skratovej situácii.At present, many arc breaker chambers are known, and the common design is to design arc chambers as cabinets, divided into a number of compartments between which the plate-shaped compartments lie. Such a chamber is generally open on the inlet side, with an electric arc from the current contacts directed towards the opening. When the contacts are disconnected, the electric arc ignites, where the ionized gases expand both in the space around the contacts and the electric arc proceeds to the arc quenching chamber, where the arc is to be quenched as quickly as possible. The arc quenching takes place in particular sections of the arc chute, where initially higher voltages are divided into a series of lower voltages in each compartment, and these lower voltages no longer allow the arc to be quenched. For the durability and durability of the entire circuit breaker, it is important that the arc be quenched as quickly as possible, which in known constructions contributes to the creation of exhaust openings in the quench chamber. These openings are provided either in the rear wall of the arc chute or in the side walls of the arc chute, the gas being discharged in both variants outside the interior of the circuit breaker. Thus, relatively good results are achieved in the arc quenching rate, respectively. however, there are still reserves in the rate of gas evacuation from the arc chute where such an improvement could further increase the short circuit load capacity of the circuit breaker as well as its service life in terms of repeated opening in the short circuit situation.
Podstata vynálezuSUMMARY OF THE INVENTION
Uvedené časové a prúdové obmedzenia sa redukujú a vytvorenie prúdového ističa so skrátenými rozpínacími dobami, so zvýšenou skratovou zaťažíteľnosťou a s dlhšou životnosťou sa dosahuje pri ističi so zhášacou komorou, podľa predkladaného vynálezu, kde je zhášacia komora vytvorená v podobe skrine, umiestnenej vedľa rozpínacích kontaktov a tvorenej aspoň bočnými stenami a zadnou stenou, kde sú v tejto skrini kolmo na tieto steny uložené deionizačné doštičky na báze feromagnetického materiálu a kde sú v stenách skrine vytvorené otvory, upravené na odvod plynov zo zhášacej komory, a kde podstata spočíva v tom, že otvory sú vytvorené v dvoch skupinách, kde prvá skupina otvorov je vytvorená v oboch bočných stenách skrine, pričom na otvory v prvej skupine nadväzujú výfukové kanály, prepojujúce priestor v skrini s priestorom rozopínaných kontaktov, a druhá skupina otvorov je vytvorená v zadnej stene skrine, s voľným výfukom mimo zhášaciu komoru. Deionizačné doštičky sú výhodne vytvorené z feromagnetického materiálu, osobitne výhodne potom s povrchovou úpravou z materiálu odolnému proti vysokým teplotám a proti oxidácii. Osobitne potom je výhodné, ak majú deionizačné doštičky povrchovú úpravu vytvorenú povlakom z medi. Deionizačné doštičky majú v prednej časti výhodne vytvorený uhlový výrez. Uhlový výrez je vyhotovený výhodne s vychýlením osi svojho uhla striedavo na jednu a na druhú stranu od pozdĺžnej osi skrine zhášacej komory. Otvory v skrini v prvej skupine, vytvorené v bočných stenách skrine, sú výhodne umiestnené, postupne v jednotlivých priestoroch medzi deionizačnými doštičkami, striedavo v jednej a v druhej bočnej stene skrine. Otvory v skrini sú v druhej skupine, vytvorené v zadnej stene skrine, výhodne umiestnené, postupne v jednotlivých priestoroch medzi deionizačnými doštičkami, striedavo bližšie k jednej a bližšie k druhej bočnej stene. Prednostne je výhodné, ak v každom priestore medzi deionizačnými doštičkami je vytvorený práve jeden otvor v bočnej stene a jeden otvor v zadnej stene skrine. V takom prípade je výhodné, ak v jednom priestore medzi deionizačnými doštičkami je zadný otvor, vytvorený v zadnej stene skrine, umiestnený ďalej od tej bočnej steny, v ktorej je v tomto priestore vytvorený druhý, teda bočný otvor. Výhodne môžu mať ešte bočné i zadné otvory obdĺžnikový prierez, čím sa pri malej výške priestoru medzi deionizačnými doštičkami dosiahne optimálny prierez týchto otvorov. Konečne ešte môže byť výhodné aj to, ak celková plocha bočných otvorov bude menšia než celková plocha zadných otvorov. V takom prípade bude rozhodujúci pokles tlaku v skrini zabezpečený priamym výfukom z tejto skrine, ale súčasne stále tiež prefuk plynov späť ku kontaktom bude zabezpečený v účinnom množstve na podporu odchodu, resp. vytlačenie oblúkov z týchto kontaktov.Said time and current limitations are reduced, and a circuit breaker having a shortened breaking time, an increased short-circuit load and a longer lifetime is achieved with a circuit breaker with a quenching chamber according to the present invention, wherein the quenching chamber is formed as a housing next to the break contacts. at least the side walls and the rear wall, in which the ferro-magnetic deionization plates are arranged perpendicularly to these walls, and where openings are provided in the walls of the cabinet, adapted to evacuate the gases from the arc chute, and wherein the openings are formed in two groups, the first group of apertures being formed in both side walls of the cabinet, the apertures in the first group being connected to the exhaust ducts connecting the cabinet space to the open contact area, and the second group of apertures formed in the rear wall of the cabinet; exhaust outside the arc chute. The deionization plates are preferably formed of a ferromagnetic material, particularly preferably a surface treatment of a material resistant to high temperatures and to oxidation. In particular, it is preferred that the deionization plates have a copper coating. The deionizing plates preferably have an angular cut-out in the front part. The angular cut-out is preferably made with a deflection of its angle axis alternately to one side and the other from the longitudinal axis of the arc chute box. The openings in the housing in the first group, formed in the side walls of the housing, are preferably located, sequentially in individual spaces between the deionization plates, alternately in one and the other side walls of the housing. The openings in the housing in the second group formed in the rear wall of the housing are preferably located sequentially in individual spaces between the deionization plates, alternately closer to one and closer to the other side wall. Preferably, it is advantageous if in each space between the deionization plates, exactly one opening in the side wall and one opening in the rear wall of the housing are provided. In such a case, it is advantageous if, in one space between the deionization plates, the rear opening formed in the rear wall of the housing is located further away from the side wall in which the other, i.e. side opening, is formed in this space. Advantageously, the lateral and rear openings can also have a rectangular cross-section, whereby an optimum cross-section of these openings is achieved at a small height of the space between the deionization plates. Finally, it may still be advantageous if the total area of the side openings is smaller than the total area of the rear openings. In such a case, the decisive pressure drop in the housing will be provided by direct exhaust from the housing, but at the same time, the gas backflow to the contacts will also be provided in an effective amount to support the exit, respectively. forcing the arcs out of these contacts.
Tým sa celkovo dosiahne vytvorenie prúdového ističa so zlepšenou zhášacou komorou, ktorý má pri malých rozmeroch vysokú odolnosť proti skratovým prúdovým záťažiam, relatívne dlhú životnosť a súčasne pri prerušení prúdu sa dosahujú značne skrátené časy, v porovnaní s doterajšími špičkovými vyhotoveniami.As a result, a circuit breaker with an improved arc quenching chamber is obtained, which has a high resistance to short-circuit current loads, a relatively long lifetime at the small dimensions and at the same time a considerably shortened time is achieved when the current is interrupted compared to the prior art designs.
Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS
Vynález je ďalej podrobnejšie popísaný a vysvetlený na príkladnom vyhotovení, tiež pomocou priložených výkresov, kde na obr. 1 je v perspektívnom pohľade rez časti ističa so skriňou zhášacej komory, na obr. 2 je potom v pozdĺžnom vodorovnom reze viditeľný ten istý istič, pričom rez je vedený cez priestor medzi deionizačnými doštičkami.The invention is further described and explained in more detail by way of example, also with reference to the accompanying drawings, in which: FIG. 1 is a cross-sectional perspective view of a portion of the circuit breaker with the arc chute housing; FIG. 2, the same circuit breaker is visible in a longitudinal horizontal section, the section being guided through the space between the deionization plates.
Príklady uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION
Prúdový istič 100 obsahuje zhášaciu komoru 10, ktorej podstatnou časťou je skriňa 1. Táto skriňa 1 je vymedzená bočnými stenami 11a zadnou stenou 12 a je umiestnená vedľa rozpínacích kontaktov, tu znázornených. V tejto skrini 1 sú kolom na tieto steny 11, 12 uložené deionizačné doštičky 13, vyrobené z feromagnetického materiálu, pričom ich povrch má úpravu vyhotovenú medeným povlakom. V stenách 11, 12 skrine 1 sú vytvorené otvory 111, 121, upravené na odvod plynov zo zhášacej komory 10, pričom otvory 111, 121 sú vytvorené v dvoch skupinách, kde prvá skupina otvorov 111 je vytvorená v oboch bočných stenách 11 skrine 1 a kde na otvory 111 v tejto prvej skupine nadväzujú výfukové kanály 101, prepájajúce priestor v skrini 1 s priestorom rozopínaných kontaktov, tu neznázomených, zatiaľ čo druhá skupina otvorov 121 je vytvorená v zadnej stene 12 skrine 1 s voľným výfukom mimo zhášaciu komoru 10. Deionizačné doštičky 13 majú v tomto vyhotovení vo svojej prednej časti vytvorený uhlový výrez 131. Uhlový výrez 131 je tu symetrický podľa pozdĺžnej osi svojho uhla striedavo na jednu a na druhú stranu od pozdĺžnej osi skrine 1 zhášacej komory 10. Otvory 111 v skrini 1 v prvej skupine, vytvorené v bočných stenách 11 skrine 1 sú umiestnené postupne v jednotlivých priestoroch medzi deionizačnými doštičkami 13, a to striedavo v jednej a v druhej bočnej stene 11 skrine 1. Otvory 121 v skrini 1 sú v druhej skupine vytvorené v zadnej stene 12 skrine 1, umiestnené postupne v jednotlivých priestoroch medzi deionizačnými doštičkami 13, striedavo bližšie k jednej a bližšie k druhej bočnej stene 11. Konkrétne potom v tomto prevedení je v každom priestore medzi deionizačnými doštičkami 13 vytvorený práve jeden bočný otvor 111 v bočnej stene 11 a práve jeden zadný otvor 121 v zadnej stene 12 skrine 2. Usporiadanie otvorov lll,121jetu také, že v jednom priestore medzi deionizačnými doštičkami 13 je zadný otvor 121 v zadnej stene 12 skrine 1 umiestnený ďalej od tej z bočných stien 11, v ktorej je v tomto priestore vytvorený bočný otvor 111. Čo sa týka konkrétneho vyhotovenia tvaru a rozmerov otvorov 111, 121, potom prierez všetkých je obdĺžnikový a plocha bočných otvorov 111 je tu v súčte väčšia než plocha zadných otvorov 121.The circuit breaker 100 comprises a quenching chamber 10, a substantial part of which is a housing 1. This housing 1 is delimited by the side walls 11a by the rear wall 12 and is located next to the break contacts shown here. In this housing 1, deionization plates 13 made of ferromagnetic material are deposited around these walls 11, 12, the surface of which is treated with a copper coating. Apertures 111, 121 are provided in the walls 11, 12 of the housing 1, adapted to evacuate gases from the arc chute 10, wherein the apertures 111, 121 are formed in two groups, the first group of apertures 111 being formed in both side walls 11 of the housing 1; openings 111 in this first group are followed by exhaust ducts 101 interconnecting the space in the housing 1 with the open contact area (not shown here), while the second group of openings 121 is formed in the rear wall 12 of the free exhaust housing 1 outside the quench chamber 10. Deionization plates 13 in this embodiment, an angular cutout 131 is formed in the front thereof. The angular cutout 131 is here symmetrical about the longitudinal axis of its angle alternately to one side and the other from the longitudinal axis of the box 1 of the arc chute. in the side walls 11 of the cabinet 1, they are placed sequentially in individual spaces between the deionization plates 13, namely alternately in one and the other side walls 11 of the cabinet 1. The openings 121 in the cabinet 1 are formed in a second group in the rear wall 12 of the cabinet 1, positioned sequentially in individual spaces between the deionization plates 13, alternately closer to one and closer to the other side wall 11. Specifically, in this embodiment, in each space between the deionization plates 13, exactly one side opening 111 is formed in the side wall 11 and just one rear opening 121 in the rear wall 12 of the housing 2. The arrangement of the openings 111, 121 is such that in one space between the deionization plates 13, the rear opening 121 in the rear wall 12 of the housing 1 is located further away from the side walls 11 in which a side opening 111 is formed therein. With respect to the particular embodiment of the shape and dimensions of the openings 111, 121, the cross-section is all rectangular; here, the area of the side openings 111 is in sum greater than the area of the rear openings 121.
Funkcia zariadenia je nasledujúca. Elektrický oblúk, vzniknutý následkom rozpojenia kontaktov ističa, sa pohybuje zhášacou komorou do priestoru deionizačných doštičiek. Rast pretlaku plynov v zhášacej komore, ktorý by bránil odchodu elektrického oblúka od týchto kontaktov, sa redukuje odchodom plynov otvormi v skrini zhášacej komory, pričom tento odchod plynov je urýchlený jednak vytvorením otvorov súčasne v bočných stenách i v zadnej stene skrine zhášacej komory, jednak tým, že plyny odvádzané bokom zo skrine zhášacej komory sa vedú bočnými vodorovnými kanálmi 8 späť do priestoru kontaktov, kde vďaka rýchlosti, ktorou sa v tomto okamihu plyny už pohybujú, pomáhajú ešte viac urýchľovať odchod elektrického oblúka od kontaktov, čím sa ešte ďalej skracuje vypínacia doba a ešte ďalej sa zvyšuje maximálna skratová zaťažiteľnosť ističa.The function of the device is as follows. The electric arc generated as a result of the circuit breaker contacts opening moves the arc quenching chamber into the space of the deionization plates. The growth of the gas overpressure in the arc chute, which would prevent the electric arc from escaping from these contacts, is reduced by the exit of the gas through the openings in the arc chute, and this gas exit is accelerated by creating holes simultaneously in the side walls and the rear wall of the arc chute. that the gases discharged sideways from the arc chute cabinet are routed through the lateral horizontal channels 8 back to the contact area, where, thanks to the speed at which the gases are moving at this point, they help further accelerate the arc exit from the contacts. the maximum short circuit load of the circuit breaker is further increased.
Priemyselná využiteľnosťIndustrial usability
Zariadenie podľa vynálezu je využiteľné predovšetkým v prúdovom ističi, ale analogicky by samotná zhášacia komora opísaného typu a usporiadania mohla byť využiteľná aj pri iných zariadeniach s rozopínacími kontaktmi, ktoré majú odolávať veľkým skratovým záťažiam.The device according to the invention is particularly useful in a circuit breaker, but by analogy the arc chute of the described type and arrangement could also be applicable to other opening contact devices intended to withstand high short-circuit loads.
Claims (12)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CZ20041197A CZ20041197A3 (en) | 2004-12-08 | 2004-12-08 | Extinguishing chamber for current circuit-breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SK50992005A3 SK50992005A3 (en) | 2006-07-07 |
| SK287234B6 true SK287234B6 (en) | 2010-04-07 |
Family
ID=35451610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SK5099-2005A SK287234B6 (en) | 2004-12-08 | 2005-12-08 | Arcing chamber of breaker |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100568431C (en) |
| CZ (1) | CZ20041197A3 (en) |
| DE (1) | DE202005019323U1 (en) |
| GB (1) | GB2421119B (en) |
| SK (1) | SK287234B6 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005022213A1 (en) * | 2005-05-13 | 2006-11-16 | Abb Patent Gmbh | Electrical installation device with arc prechamber space, prechamber plates and current limiting arc quenching device |
| CN102013356B (en) * | 2010-11-30 | 2012-12-19 | 中国西电电气股份有限公司 | Arc extinguish chambers of high voltage alternating current SF6 pot-type breaker |
| EP2648199A3 (en) * | 2012-04-05 | 2014-03-12 | ABB Schweiz AG | Arc quenching device and installation switch device with same |
| CN104091734B (en) * | 2014-07-16 | 2016-04-13 | 德力西电气有限公司 | A kind of arc-control device of circuit breaker |
| GB2606543A (en) * | 2021-05-12 | 2022-11-16 | Eaton Intelligent Power Ltd | Switchgear |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4229630A (en) * | 1980-03-17 | 1980-10-21 | Westinghouse Electric Corp. | Circuit breaker utilizing improved arc chambers |
| JPS63292543A (en) * | 1987-05-25 | 1988-11-29 | Matsushita Electric Works Ltd | Arc extinguishing device |
| JPH04255623A (en) * | 1991-02-07 | 1992-09-10 | Fuji Electric Co Ltd | Circuit breaker |
| JP3250620B2 (en) * | 1991-04-11 | 2002-01-28 | 富士電機株式会社 | Circuit breaker arc-extinguishing room shielding device |
| JPH05135680A (en) * | 1991-11-11 | 1993-06-01 | Matsushita Electric Works Ltd | Device for extinguishing arc |
| JPH08249989A (en) * | 1995-03-08 | 1996-09-27 | Toshiba Corp | Puffer type gas-blast circuit-breaker |
| DE19920042C1 (en) * | 1999-04-23 | 2001-01-18 | Siemens Ag | Switching gas damper for low-voltage circuit breakers |
| US6222147B1 (en) * | 2000-03-09 | 2001-04-24 | General Electric Company | Circuit breaker arc exhaust baffle with variable aperture |
| JP4524534B2 (en) * | 2001-05-28 | 2010-08-18 | 富士電機機器制御株式会社 | Circuit breaker dustproof structure |
| CN2586244Y (en) * | 2002-08-29 | 2003-11-12 | 浙江德力西电器股份有限公司 | Zero flashover arc deflector of plastic hull breaker |
| CN1242436C (en) * | 2002-09-28 | 2006-02-15 | 上海电器科学研究所 | Device for eliminating free gas and arc extinguishing chamber equipped with this device |
-
2004
- 2004-12-08 CZ CZ20041197A patent/CZ20041197A3/en unknown
-
2005
- 2005-10-12 GB GB0520745A patent/GB2421119B/en active Active
- 2005-12-08 SK SK5099-2005A patent/SK287234B6/en not_active IP Right Cessation
- 2005-12-08 DE DE202005019323U patent/DE202005019323U1/en not_active Expired - Lifetime
- 2005-12-08 CN CNB2005101310896A patent/CN100568431C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB0520745D0 (en) | 2005-11-23 |
| CZ20041197A3 (en) | 2006-07-12 |
| CN1787139A (en) | 2006-06-14 |
| CN100568431C (en) | 2009-12-09 |
| GB2421119A (en) | 2006-06-14 |
| GB2421119B (en) | 2009-02-04 |
| DE202005019323U1 (en) | 2006-02-09 |
| SK50992005A3 (en) | 2006-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PC4A | Assignment and transfer of rights |
Owner name: JOVEAN & ROGY ELECTRICAL HOLDING CO., LTD, LIU, CN Free format text: FORMER OWNER: HESS TRADING SR, SPOL. S R. O., SKALICA, SK; JOVEAN & ROGY ELECTRICAL HOLDING CO., LTD, LIUSHI WENZHOU, CN Effective date: 20100728 Owner name: HESS R&D, S. R. O., SUDOMERICE, CZ Free format text: FORMER OWNER: HESS TRADING SR, SPOL. S R. O., SKALICA, SK; JOVEAN & ROGY ELECTRICAL HOLDING CO., LTD, LIUSHI WENZHOU, CN Effective date: 20100728 |
|
| MM4A | Patent lapsed due to non-payment of maintenance fees |
Effective date: 20131208 |