EP0118333B1 - Dispositif interrupteur muni d'un écran isolant s'interposant entre les contacts lors de la coupure et de moyens de cisaillement de l'arc entre cet écran et une paroi isolante - Google Patents
Dispositif interrupteur muni d'un écran isolant s'interposant entre les contacts lors de la coupure et de moyens de cisaillement de l'arc entre cet écran et une paroi isolante Download PDFInfo
- Publication number
- EP0118333B1 EP0118333B1 EP84400204A EP84400204A EP0118333B1 EP 0118333 B1 EP0118333 B1 EP 0118333B1 EP 84400204 A EP84400204 A EP 84400204A EP 84400204 A EP84400204 A EP 84400204A EP 0118333 B1 EP0118333 B1 EP 0118333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screen
- contacts
- arc
- switch
- contact
- 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.)
- Expired
Links
- 230000004888 barrier function Effects 0.000 title 2
- 230000000694 effects Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 abstract description 12
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 10
- 230000008033 biological extinction Effects 0.000 description 9
- 239000003380 propellant Substances 0.000 description 6
- 238000007872 degassing Methods 0.000 description 5
- 239000008188 pellet Substances 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001687 destabilization Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005520 electrodynamics Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000010603 pastilles Nutrition 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- H01H9/32—Insulating body insertable between contacts
Definitions
- the invention relates to the extinction of the electric arc which arises when a circuit is opened by a switch device, operating on direct or alternating current.
- low and medium voltage breaking devices ranging for example from 110 V to 5 KV
- the discharge occurs in the air and more especially, those in which an electrically insulating screen is interposed between the contacts in order to favor the rapid extinction of the arc and to avoid its re-ignition.
- limiters where the separation of the contacts is for example obtained by means of electrodynamic repulsion forces which are exerted in conductive portions of contact support when the current which crosses them exceeds a predetermined threshold
- circuit breakers where contact separation is achieved by releasing accumulated mechanical energy or by magnetic energy developed by the short circuit, and even some contactors.
- the arrangement is such that the flaps take their folded position in a time equal to the contact opening time, which is also relatively long, because this opening is controlled by mechanical means.
- the arc can therefore stabilize and it is neither indicated nor probable, that its extinction is caused by the subsequent interposition of the screen, rather than by the passage of current through zero.
- This device seems in fact intended to prevent a rearming of the arc; before the arc is extinguished, it is in contact with the screen for a relatively long time, from which it follows that a significant risk of metallization of the screen by the arc exists.
- strangulation is not completely ensured and escape routes are not avoided; finally, the entire structure is neither reliable nor likely to allow efficient and long-term operation.
- the screen subjected to a translation perpendicular to the direction of spacing of the contacts, does not come between the contact pads until after those -these have been separated from one another by the cooperation, with their support blades, of bosses with which it is provided.
- the means for opening the contacts merges here with the means for propelling the screen and the latter must completely overcome the pressure for maintaining the contacts in the closed state. It necessarily follows that the interposition on the path of the arc of the screen thus braked in its translation occurs after a relatively long time, so that the arc will have had time to stabilize.
- a blowing coil is also arranged in the vicinity of the contact pads to drive the arc thus formed towards a slot into which the edge of the screen penetrates.
- FR-A-1 541 810 describes the use of a contact separation piece interposed between them, either to cause it to open, or after said opening, and the wedge-shaped end of which engages at the end in a groove in a wall of the contact chamber. This part drives out the arc of the contacts by laminating it and it causes an elongation. The arc is therefore not sheared before it can stabilize, the groove being too far from the contact zone for this result to be obtained.
- FR-A-1 238 660 describes a device for lengthening the electric arcs in which its contacts are opened by the movement of a screen.
- the values proposed in this patent for the speeds of the screen are chosen as a function of the j lengthening speed of the arc which it is desired to obtain, and not with a view to shearing the arc before its stabilization.
- the substantially complete shearing of the arc before it has had time to stabilize is obtained by controlling a sufficiently rapid movement of the screen by means of a member separate from the control member of the separation of the contacts and by arranging the cooperating surfaces of the terminal edge of the screen and the insulating wall so that a substantially complete seal is obtained between them when the screen has come into abutment position against said wall.
- the linear speed of movement of the screen is greater than 2m / s.
- the screen is guided in its movement by a groove arranged to provide a lateral seal.
- FIG. 1 to 4 there is shown a switch device comprising, housed in a housing 1, two contact supports 2 and 3 provided with contact pads 201 and 301 and able to pivot around two points 202-302. The latter is connected to a conductor 303 which leads to a connection terminal 304. A coil 4 is supplied from a connection terminal 204.
- contact opening control lock 2-201 and 3-301.
- these means will respond for example to a predetermined current overcurrent, corresponding to a short circuit and may be of different known types: thermal response members such as bimetallic strips, electromagnetic response members such as coils or electrodynamic response (repulsive forces exerted between the conductive supports of the contacts).
- the front edge 601 of this screen is located a short distance d 1 behind the point of contact.
- This screen is propelled forward by means which have been symbolized here by the coil 4 and a system of levers 401-402 connected to a plunger core 403 with which it is provided.
- These means are, in the illustrated example, electromagnetic and actuated by the effect of the short-circuit current. However, they could be of various types: for example, armed spring triggered at the desired moment, or others.
- propellant means must be able to communicate on the screen a considerable translation speed, at least equal to 2 m / s and which will often, in practice, of the order of 10 to 20 m / s , as will be explained below.
- the slot 603 communicates with the outside by degassing means, such as baffles 604 and channels 605 forming expansion chambers 606.
- the distance d 2 between the point of contact of the pellets and the bottom of the slot is relatively small, so that the path of the arc which forms between the pellets is not considerably lengthened when the screen pushes it towards slot.
- the essential phenomenon is that the arc is completely sheared without ever having had time to stabilize and experience shows that this results in a growth in the arc voltage as brutal as that which occurs in a fuse, therefore an extremely rapid extinction and a considerable reduction (by a factor given as an indication of the order of 2 to 3) of the energy of the arc compared to what happens in the absence of this phenomenon of abrupt reduction of section S of the arc to a practically zero value.
- the arc does not have time to stabilize between the contacts, because it would more or less quickly cause their deterioration; experience has shown that this result is obtained if the speed of movement of the screen exceeds 2 m / s and is preferably of the order of 10 m / s. It will be noted that a speed that is too high (for example, greater than 20 m / s) would cause a derivative of too high power, with the generation of shock waves capable of causing the case to explode.
- the front edge of the screen must have reached the appropriate speed when it touches the arc: this is why the distance d, mentioned above, must have an appropriate value.
- Another essential condition for producing the critical phenomenon of very rapid extinction of the arc by complete shear is that no escape route is offered to it; hence the importance of the sealing arrangements and low lateral clearance mentioned above.
- the screen completely isolates the contact supports from one another, thus eliminating any risk of welding: this function of the screen is previously known.
- the screen cannot be metallized by the arc and, consequently, the performance of the device will not be degraded by repetitive cuts. Such a device can thus be used even in contactors.
- the degassing means are obviously intended to prevent an excessive increase in the pressure inside the arc chamber.
- the device described can be the subject of very diverse applications and present a very wide variety of embodiments.
- the receiving slot of the front edge of the screen may be eliminated in certain cases, the screen then abutting against a flat surface or otherwise shaped to ensure adequate mechanical contact, with sealing between the screen edge and said surface. Note, however, that the use of a slot, associated with degassing means, prevents the rebound of the screen which arrives at high speed on the wall.
- the screen can receive different profiles and, for example, include, at its front edge, a blade of thinner thickness which extends it and comes into the slot.
- Said strip can be located in the longitudinal plane of symmetry of the screen, as shown in FIG. 5, where there has been shown such a middle strip, 607 on the lateral faces of which the contact pads 201 and 301 are in support in the closed state of the switch: contact is then ensured by a conductive pad 608 incorporated in the blade 607. The cut is made when this pad has moved relative to the pads 201 and 301.
- the device of Figure 5 also includes the same members, not shown, as that of Figures 1 to 4 and the contact supports 2 and 3 are pivotable.
- FIG 22 there is shown a screen 6 in the form of a cylindrical crown guided by an insulating cylindrical column 6081 in which is embedded a fixed contact 3 which leads to a surface conductive pad 6080 in the form of a ring.
- the front end of this column is integral with the wall 102 of the housing surrounded by a groove 1023 into which penetrates the front edge of the screen 6 when the latter is propelled by means not shown, at the time of pivoting of a movable contact 2 which deviates from the range 6080.
- the screen 6 thus completely separates the two contacts from one another and the arc is throttled inside the groove 1023.
- the latter communicates with degassing channels 605 on each side of the column 6081.
- the blade 607a extends the base of the thick body of the screen and thus forms a stair step which enters the slot 603 and abuts (by the surface 6072a) against the wall 102 as indicated above.
- the conductive pad 608a embedded in the blade is then connected to an electrical connection 609 embedded in the screen, to constitute the fixed contact.
- the degassing channels are designated by 610.
- the contact 2 pivots upwards while the pellet 608a undergoes translation and is received in the slot 603.
- the position of the fixed contact pad 301 is shown in dotted lines in FIG. 8 when the arc arises: it can be seen that it is then sheared by oblique shearing, in the vicinity of the lower edge. of the partition 1020 and between the lower surface of this partition and the upper surface very close to the screen (the clearance between these two surfaces is for example less than 2/10 mm).
- FIG. 10 and 11 schematically illustrate an embodiment of the device of Figures 7 to 9, where the terminal part of the screen has a portion of smaller thickness 613 connected to the main body by an inclined ramp 614. This arrangement improves the shearing of the arc, the main body of the screen and the ramp then ensuring its stopping and the shoulder 6120 of FIG. 9 is unnecessary here.
- FIG. 12 to 14 a device comprising two screens 6a and 6b movable in translation relative to the housing 1 and whose opposite end portions have a complementary shape, so that the front edge of the thin screen 6b will come, at the end of the open position of the pivoting contacts 2-3, engage to the bottom of the narrow open housing 600a of the screen 6a.
- the contacts 2 and 3 are moved aside and arranged on either side of the end of the two end portions, nested one inside the other, of the two screens, so that the housing is divided into two airtight chambers relative to each other (the screens sliding, for this purpose, in appropriate housing grooves).
- a means of propelling the screens comprising two pivoting levers 601 a and 601 b, normally returned to the separated position by respective springs 602a and 602b and which approach each other under the action of two magnetic cores 603a, 603b controlled by a coil 825, until they come into contact with each other.
- At at least one of the contacts is pivotable or moves away elastically to let the screen pass.
- FIGS. 15 and 16 show a comb screen structure intended to be interposed between fixed contacts such as 20-21 and contacts such as 30-31 movable by translation perpendicular to the screen.
- This structure makes it possible to produce devices with multiple contact couples (mobile contact bridge 32).
- Each tooth of the comb that forms the screen is guided by its lateral edges in grooves such as 622-623 formed in partitions arranged in the housing 1.
- the bottom of the intervals 624 between fingers stops the screen by abutting against narrow parts 100 of these partitions.
- FIGS. 17 and 18 An axis 616 whose ends rotate in two walls of the housing 1 supports a stirrup 617 whose legs 6170-6171 carry a screen 6 in the form of a portion of cylindrical crown capable of moving in a groove 620, the bottom of which communicates with the outside via vents such as 621.
- the propulsion of the assembly is provided by a spiral spring 619 pre-armed and triggered by means figured symbolically at 40.
- the movable contact 22 is pivotally mounted about an axis 220 parallel to the axis 616 and which also pivots in two walls of the housing. The end of the contact 22 enters the groove when the screen is in the rest position to come, in the closed position shown, in contact with the fixed contact 3.
- FIGs 19 to 21 there is shown a device composed of two screens 6c and 6d which is interposed between two contacts 2 and 3, which, when the complete device is opened, (not shown) move apart. one of the other perpendicular to the screens.
- Each screen has two integral parts, each a little smaller than a semicircle, namely an external part and a base. The latter has a pivot axis, such as 6000a, fixed to the housing, not shown, of the device.
- a ring 40 itself mounted in the housing so as to be able to turn on itself when it is actuated by a non-illustrated propellant means, comprises two diametrically opposed pins 401 and 402 which are respectively engaged in notches 403 and 404 contained in the respective external parts of the two screens.
- the rotation of the ring therefore has the effect of rotating each of the two screens around an eccentric fixed axis.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Push-Button Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Switches With Compound Operations (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Saccharide Compounds (AREA)
- Glass Compositions (AREA)
- Road Signs Or Road Markings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Circuit Breakers (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Air Bags (AREA)
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84400204T ATE22503T1 (de) | 1983-02-04 | 1984-01-31 | Schalter mit einer sich beim ausschalten zwischen den kontakten einschiebenden isolierstoffwand und mit lichtbogenabquetschmittel zwischen der isolierstoffwand und einem isolierstoffgehaeuse. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8301749A FR2540665B1 (fr) | 1983-02-04 | 1983-02-04 | Dispositif interrupteur muni d'un ecran isolant s'interposant entre les contacts lors de la coupure et de moyen de cisaillement de l'arc entre cet ecran et une paroi isolante |
FR8301749 | 1983-02-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0118333A1 EP0118333A1 (fr) | 1984-09-12 |
EP0118333B1 true EP0118333B1 (fr) | 1986-09-24 |
Family
ID=9285597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84400204A Expired EP0118333B1 (fr) | 1983-02-04 | 1984-01-31 | Dispositif interrupteur muni d'un écran isolant s'interposant entre les contacts lors de la coupure et de moyens de cisaillement de l'arc entre cet écran et une paroi isolante |
Country Status (14)
Country | Link |
---|---|
US (1) | US4562323A (ja) |
EP (1) | EP0118333B1 (ja) |
JP (1) | JPS59148220A (ja) |
AT (1) | ATE22503T1 (ja) |
AU (1) | AU564257B2 (ja) |
BR (1) | BR8400485A (ja) |
CA (1) | CA1204136A (ja) |
DE (2) | DE3460784D1 (ja) |
DK (1) | DK50684A (ja) |
ES (1) | ES8500504A1 (ja) |
FR (1) | FR2540665B1 (ja) |
GR (1) | GR81697B (ja) |
NO (1) | NO161024C (ja) |
ZA (1) | ZA84797B (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823790A1 (de) * | 1988-07-14 | 1990-01-18 | Asea Brown Boveri | Elektrisches installationsgeraet mit kontakttrennwand |
Families Citing this family (38)
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FR2561816B1 (fr) * | 1984-03-20 | 1988-06-10 | Telemecanique Electrique | Combine pour la coupure en charge et le sectionnement visible d'un circuit electrique |
FR2573914B1 (fr) * | 1984-11-26 | 1987-02-06 | Telemecanique Electrique | Interrupteur electrique a ecran |
FR2573912B1 (fr) * | 1984-11-26 | 1987-01-09 | Telemecanique Electrique | Interrupteur electrique a ecran |
FR2573913B1 (fr) * | 1984-11-26 | 1987-01-09 | Telemecanique Electrique | Interrupteur electrique a ecran |
FR2575589B1 (fr) * | 1984-12-28 | 1987-02-06 | Telemecanique Electrique | Interrupteur electrique a ecran |
FR2581477B1 (fr) * | 1985-05-06 | 1989-01-13 | Telemecanique Electrique | Appareil interrupteur protege contre les courants de court-circuit |
EP0236576B1 (en) * | 1986-01-10 | 1991-08-14 | Matsushita Electric Works, Ltd. | Circuit breaker |
ES2022388B3 (es) * | 1986-04-04 | 1991-12-01 | Telemecanique | Interruptor electrico para aparato de proteccion, como un disyuntor. |
EP0450104B1 (de) * | 1990-03-28 | 1995-08-09 | Siemens Aktiengesellschaft | Schnellschalter |
US5126517A (en) * | 1990-09-11 | 1992-06-30 | Square D Company | Arc suppressing current interrupter |
US5933311A (en) * | 1998-04-02 | 1999-08-03 | Square D Company | Circuit breaker including positive temperature coefficient resistivity elements having a reduced tolerance |
WO1999010903A1 (en) * | 1997-08-25 | 1999-03-04 | Square D Company | Current limiting circuit breakers with ptc (positive temperature coefficient resistivity) elements and arc extinguishing capabilities |
US5886860A (en) * | 1997-08-25 | 1999-03-23 | Square D Company | Circuit breakers with PTC (Positive Temperature Coefficient resistivity |
US6020802A (en) * | 1998-04-02 | 2000-02-01 | Square D Company | Circuit breaker including two magnetic coils and a positive temperature coefficient resistivity element |
US6430019B1 (en) * | 1998-06-08 | 2002-08-06 | Ferraz S.A. | Circuit protection device |
US6084193A (en) * | 1998-10-07 | 2000-07-04 | Texas Instruments Incorporated | Electrical circuit interruption device having improved arc extinguishing apparatus including an arc paddle |
SE9901150D0 (sv) * | 1999-03-30 | 1999-03-30 | Asea Brown Boveri | A switching device and the use thereof |
US6414256B1 (en) * | 2000-12-20 | 2002-07-02 | Square D Company | Current limiting circuit breaker |
US6839209B2 (en) * | 2002-06-14 | 2005-01-04 | Eaton Corporation | Shorting switch and system to eliminate arcing faults in power distribution equipment |
JP4396204B2 (ja) * | 2003-09-24 | 2010-01-13 | パナソニック電工株式会社 | 回路遮断器 |
JP4251092B2 (ja) * | 2004-02-23 | 2009-04-08 | パナソニック電工株式会社 | 回路遮断器 |
ES2399966T3 (es) * | 2004-10-08 | 2013-04-04 | Abb France | Dispositivo de protección contra sobretensiones provisto de medios de corte de arco y procedimiento correspondiente |
US7483252B2 (en) * | 2006-12-05 | 2009-01-27 | Ferraz Shawmut S.A. | Circuit protection device |
US8040664B2 (en) | 2008-05-30 | 2011-10-18 | Itron, Inc. | Meter with integrated high current switch |
WO2011041260A1 (en) * | 2009-09-30 | 2011-04-07 | Itron, Inc. | Utility remote disconnect from a meter reading system |
CA2716046C (en) | 2009-09-30 | 2016-11-08 | Itron, Inc. | Gas shut-off valve with feedback |
US8890711B2 (en) | 2009-09-30 | 2014-11-18 | Itron, Inc. | Safety utility reconnect |
DE102010061110A1 (de) * | 2010-12-08 | 2012-06-14 | Phoenix Contact Gmbh & Co. Kg | Thermische Abtrennvorrichtung |
US8810988B2 (en) | 2011-11-04 | 2014-08-19 | Mersen Usa Newburyport-Ma, Llc | Circuit protection device |
US8477468B2 (en) | 2011-11-04 | 2013-07-02 | Mersen Usa Newburyport-Ma, Llc | Circuit protection device |
US9005423B2 (en) | 2012-12-04 | 2015-04-14 | Itron, Inc. | Pipeline communications |
CN103943426A (zh) * | 2014-05-04 | 2014-07-23 | 郑品章 | 电涌保护器故障脱扣和指示机构 |
CN104022002B (zh) * | 2014-05-27 | 2015-12-02 | 通能顺达科技国际有限公司 | 一种快速切弧断路器 |
JP2016100108A (ja) * | 2014-11-19 | 2016-05-30 | Nkkスイッチズ株式会社 | 消弧装置付き直流電流遮断用小形スイッチ |
CN104916474B (zh) * | 2015-05-08 | 2017-10-27 | 上海电机学院 | 一种永磁接触器灭弧装置 |
DE102016119202B4 (de) * | 2016-10-10 | 2019-12-05 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
LU93253B1 (de) * | 2016-10-10 | 2018-04-17 | Phoenix Contact Gmbh & Co Kg Intellectual Property Licenses & Standards | Überspannungsschutzelement |
EP3709325B1 (en) | 2019-03-13 | 2023-05-03 | ABB S.p.A. | Breaking device |
Family Cites Families (22)
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US751028A (en) * | 1904-02-02 | Means for extinguishing electric arcs | ||
DE654657C (de) * | 1937-12-28 | Ellinger & Geissler | Kipp- oder Druckknopfschalter | |
DE472305C (de) * | 1927-10-30 | 1929-02-26 | Siemens Schuckertwerke Akt Ges | Loeschkammer fuer Schalter |
US1833173A (en) * | 1928-07-10 | 1931-11-24 | Metropolitan Device Corp | Circuit breaking apparatus |
DE591598C (de) * | 1931-08-19 | 1934-01-24 | Aeg | Elektrischer Schalter mit Lichtbogenloeschung durch ein stroemendes, gasfoermiges Medium |
DE574960C (de) * | 1931-10-02 | 1933-04-21 | Siemens Schuckertwerke Akt Ges | Entionisierungsvorrichtung zum Loeschen des Unterbrechungslichtbogens von Schaltern |
US2178600A (en) * | 1937-07-06 | 1939-11-07 | Cutler Hammer Inc | Safety switch |
DE678744C (de) * | 1937-07-17 | 1939-07-20 | Aeg | Elektrischer Schalter, insbesondere Installationsselbstschalter |
US2254347A (en) * | 1938-04-27 | 1941-09-02 | George R Blakesley | Electric switch |
BE436328A (ja) * | 1938-09-08 | |||
US2477837A (en) * | 1944-08-25 | 1949-08-02 | Westinghouse Electric Corp | Circuit interrupter |
FR1238660A (fr) * | 1958-10-16 | 1960-08-12 | Siemens Ag | Dispositif pour allonger les arcs électriques |
FR1217162A (fr) * | 1958-12-02 | 1960-05-02 | Parisienne De Const Electro Me | Interrupteur électrique à écran |
GB930980A (en) * | 1960-04-13 | 1963-07-10 | Jose Munoz De Vargas | Improvements in electric switches |
BE635001A (ja) * | 1962-07-16 | |||
FR1541810A (fr) * | 1967-09-01 | 1968-10-11 | Comp Generale Electricite | Appareil électrique de coupure à rupture rapide |
US3842228A (en) * | 1973-08-27 | 1974-10-15 | Us Navy | Circuit breaker assembly with interposed wedge non-conductor and complementary housing arc-prevention structure |
JPS5818246Y2 (ja) * | 1978-08-10 | 1983-04-13 | アルプス電気株式会社 | 電気部品の回転体 |
JPS5787029A (en) * | 1980-11-19 | 1982-05-31 | Mitsubishi Electric Corp | Current limiting device |
JPS5787033A (en) * | 1980-11-19 | 1982-05-31 | Mitsubishi Electric Corp | Current limiting device |
FR2511185A1 (fr) * | 1981-08-07 | 1983-02-11 | Telemecanique Electrique | Dispositif automatique de limitation de courants de court-circuit |
US4426562A (en) * | 1981-10-06 | 1984-01-17 | Westinghouse Electric Corp. | Rotary switch for switching very large DC currents |
-
1983
- 1983-02-04 FR FR8301749A patent/FR2540665B1/fr not_active Expired
-
1984
- 1984-01-31 DE DE8484400204T patent/DE3460784D1/de not_active Expired
- 1984-01-31 EP EP84400204A patent/EP0118333B1/fr not_active Expired
- 1984-01-31 AT AT84400204T patent/ATE22503T1/de not_active IP Right Cessation
- 1984-01-31 DE DE198484400204T patent/DE118333T1/de active Pending
- 1984-01-31 CA CA000446397A patent/CA1204136A/fr not_active Expired
- 1984-02-01 AU AU23964/84A patent/AU564257B2/en not_active Ceased
- 1984-02-02 ZA ZA84797A patent/ZA84797B/xx unknown
- 1984-02-02 GR GR73693A patent/GR81697B/el unknown
- 1984-02-03 NO NO840417A patent/NO161024C/no unknown
- 1984-02-03 US US06/576,983 patent/US4562323A/en not_active Expired - Lifetime
- 1984-02-03 ES ES529454A patent/ES8500504A1/es not_active Expired
- 1984-02-03 BR BR8400485A patent/BR8400485A/pt not_active IP Right Cessation
- 1984-02-03 DK DK50684A patent/DK50684A/da not_active Application Discontinuation
- 1984-02-04 JP JP59019298A patent/JPS59148220A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3823790A1 (de) * | 1988-07-14 | 1990-01-18 | Asea Brown Boveri | Elektrisches installationsgeraet mit kontakttrennwand |
Also Published As
Publication number | Publication date |
---|---|
AU564257B2 (en) | 1987-08-06 |
NO840417L (no) | 1984-08-06 |
AU2396484A (en) | 1984-08-09 |
US4562323A (en) | 1985-12-31 |
ES529454A0 (es) | 1984-10-01 |
ES8500504A1 (es) | 1984-10-01 |
DK50684D0 (da) | 1984-02-03 |
JPH0547926B2 (ja) | 1993-07-20 |
CA1204136A (fr) | 1986-05-06 |
DE118333T1 (de) | 1984-12-20 |
FR2540665A1 (fr) | 1984-08-10 |
GR81697B (ja) | 1984-12-12 |
NO161024C (no) | 1989-06-21 |
BR8400485A (pt) | 1984-09-11 |
FR2540665B1 (fr) | 1987-02-27 |
ATE22503T1 (de) | 1986-10-15 |
ZA84797B (en) | 1984-09-26 |
NO161024B (no) | 1989-03-13 |
DE3460784D1 (en) | 1986-10-30 |
DK50684A (da) | 1984-08-05 |
JPS59148220A (ja) | 1984-08-24 |
EP0118333A1 (fr) | 1984-09-12 |
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