EP1544879A1 - Schneller Leistungsschalter für Hoch-oder Mittelspannung - Google Patents
Schneller Leistungsschalter für Hoch-oder Mittelspannung Download PDFInfo
- Publication number
- EP1544879A1 EP1544879A1 EP03405906A EP03405906A EP1544879A1 EP 1544879 A1 EP1544879 A1 EP 1544879A1 EP 03405906 A EP03405906 A EP 03405906A EP 03405906 A EP03405906 A EP 03405906A EP 1544879 A1 EP1544879 A1 EP 1544879A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- switching
- rotational
- torsion spring
- switch
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/20—Bridging contacts
- H01H1/2041—Rotating bridge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H2003/3084—Kinetic energy of moving parts recuperated by transformation into potential energy in closing or opening spring to be used in next operation
Definitions
- the invention relates to the field of primary technology for electrical circuit breakers, in particular for Power circuit in high and medium voltage technology. It is based on a method and a device for power switching as well as a switchgear with such a circuit breaker according to the preamble of independent claims.
- the invention relates to a prior art, such as it is known from EP 1 180 776 A1.
- There will be one High or medium voltage switch with an electrodynamic rotationally driven bridge contact piece discloses that in the contact-closed state the distance bridged between the two fixed contacts and opens two contact gaps when opening contact.
- the two resulting partial arcs lie in series and are characterized Easier erasable than a single arc.
- the Electrodynamic drive each includes a coil for Contact opening and closing contact, each by electromagnetic repulsion between the coil current and the eddy current induced in the bridge contact piece Bridge contact piece in a contact-opening or contact-closing Rotation is offset.
- EP 1 067 569 a high or medium voltage switch is used with an electrodynamically translatory driven ring contact disclosed.
- U.S. Pat. 3'268'687 becomes a high voltage circuit breaker specified that an electrodynamic Thomson drive for very fast opening of the contacts having.
- the drive comprises a conductive disc, the electromagnetically by coil-induced eddy current forces is driven while a fast contact opening or contact closing translational movement performs.
- the necessary switching speed is through achieved a capacitor discharge, which is close to a Current zero crossing is started.
- Other embodiments relate to a translatory movement of a tubular, axially displaceable contact piece and a Bending movement of a resilient contact sheet clamped on one side, supported by the spring restoring force is moved by a Thomson drive.
- the bending elastic spring oscillates during the switching process through the neutral position and into a counter-deflection, causing a part of the spring energy recovered and is stored.
- the object of the present invention is to provide a method a device and an electrical switchgear with Such a device for power switching with a rotary Specify contact drive, which is characterized by short Switching time and low switching energy requirements.
- This object is achieved according to the invention by the features of solved independent claims.
- the invention is a method for power switching, in particular in a switch for medium or high voltage, with between two spaced fixed electrodes a rotationally movable Switching contact piece is arranged, which by a rotary drive in a first rotational switching direction for Purpose of the contact opening and in a second rotational shift direction for the purpose of contact closure of the fixed electrodes is placed in a rotary motion, the Switch contact piece by mechanical torsion spring force is rotated and the Torsionsfederkraft open to contact and the torsional spring force to contact closure of one common mechanical torsion spring mechanism applied become.
- this becomes rotational movable contact piece during the switching process is not more by an electrodynamic but by one mechanical torsion drive in contact-opening or contact-closing Rotation offset.
- This will be the first and the second rotation switching direction by the same Torsion spring mechanism driven.
- a Thomson drive that is low energy efficient and often large-volume, omitted or only as a small one Support unit are designed. This is eliminated or also reduces the need for large capacitors and switches, z. B. thyristors, for driving of the Thomson drive. So be with little constructional Effort and with little need for switching energy very fast on and off switching power switch created.
- a rotational energy of the switching contact piece when opening contact and / or Kunststoffschliessen partially recovered.
- the Rotary drive thus includes a device for recovery and storing excess torsional stress from a previous shift.
- the torsion spring mechanism in opposite Overshoot direction to original bias direction and block him in as far as possible Overshoot deflected position. This way will a much better energy efficiency in terms of achieved switching energy reached.
- rotational energy losses of the switching contact piece when opening contact and / or at the contact closure by a Torsionsspannvorraum recharged can be a Torsion clamping device.
- the torsion clamping device can be a Thomson drive or a stepper motor. This can be done with relatively small electric boost drives high switching energies and therefore very fast Switching times can be achieved.
- the required capacitors, Thyristors or general switch and / or Stepper motors can be designed much more compact and economical become.
- the invention relates to a Power switch for power switching, in particular for Execution of the method described above, comprising two spaced solid electrodes, a rotationally movable Switch contact piece and a rotary drive for Turning the switching contact piece in a first rotational switching direction for the purpose of establishing contact and in one second rotational shift direction for the purpose of contact closure the fixed electrodes, wherein the rotary drive a common mechanical torsion spring mechanism for rotating the switching contact piece in both the first rotational switching direction as well as in the second rotational shift direction having.
- the rotary drive comprises a latching device for partial recovery mechanical rotational switching energy and a torsional clamping device for mechanical recharging of rotational switching energy losses.
- Fig. 1a, 1b shows schematically in plan view a power switch 1 with two fixed electrodes 2a, 2b and a switching contact piece 2c, here a bridge contact piece 2c, which is about a rotation axis 4, here a symmetry or central axis 4, is rotatably supported and by a rotary drive 3, 6-9 is driven.
- the desk 1 is in an encapsulated and optionally evacuated or isoliergastellen switch housing 5 is arranged.
- the Rotary drive is typically, but not necessarily, arranged outside and above a gas-tight Rotary feedthrough 6, z.
- B. a magnetic rotary feedthrough or a metal bellows bushing, with the switching contact piece 2c mechanically connected.
- the rotary drive 3, 6-9 a mechanical torsion spring mechanism 3, the Turning the switching contact piece 2c both in a first Rotation switch 30 for contact opening as well as in a second rotational shift direction 31 for contact closure serves.
- the rotary drive 3, 6-9 comprises a latching device 7 to partial recovering mechanical rotational switching energy and / or a Torsionsspannvortechnisch 9 for mechanical recharging of rotational switching energy losses. These arise through Friction and other irreversible processes. Further is a switch controller 8 for controlling the latching device 7 by means of switching commands 8a and Torsionsspannvortechnisch 9 by means of Torsionsspannbeplane 8b available.
- Fig. 2a and Fig. 2b show in detail in plan view and Side view of the functioning of the rotating bridge contact 2c of length 1 and width b.
- the width b or more precisely the conductor cross section is according to the required Current carrying capacity of the circuit breaker 1 selected.
- At the fixed electrodes 2a, 2b are resilient contacts 10, z. B.
- multicontact springs 10 present, the one resilient behavior of the fixed electrodes 2a, 2b, symbolized through 10 ', cause and ensure that a high Contact force, a low contact resistance and a low impedance Current transfer between the electrodes 2a, 2b, 2c is guaranteed. This also prevents that the contacts 2a, 2b, 2c at nominal current excessive heat up and overflow through the contact closed Weld switch 1 together. In addition, will be by the spring contacts 10, the dynamic reaction forces collected and compensated at the contact closure 31.
- Fig. 2b shows four angular positions of the bridge contact piece 2c and thus of the torsion spring mechanism 3, namely a force-free neutral angular deflection 11b of Torsion spring mechanism 3, which between a contact-closed Angular displacement 11a and a contact-opened Angle deflection 11c is located, as well as a through the Torsionsspannvorraum 9 (not visible here) biased contact-opened angular deflection 11d.
- the switching contact piece 2c always in the same direction rotates and, if necessary, the biasing and direction of rotation of the torsion spring mechanism 3 is alternated.
- the contact opening typically draws an arc.
- a bridge contact switching piece 2c in the contact columns 13a, 13b two Partial arcs 12a, 12b, which are in series with each other. This allows currents at higher voltage levels and with less effort in arc extinguishing switched off and be turned on.
- the power switch 1 for both rotational switch directions 30, 31 fast switching and in particular a fast-switching synchronous switch 1.
- Fig. 3a-3d show schematically an embodiment of the operation of the latching device 7, d. H. their latching means 7a, 7b, 11a, 11b, 11c, 11d, for a contact-opening rotational switching direction 30.
- the Verklinkungsstoff 7a, 7b, 11a, 11b, 11c, 11d serve for partial recovery mechanical rotary switching energy when opening contact.
- the latching device 7 has: in Fig. 3a, a contact-closed Torsionsarret ist 7a, 11a (comprising a rotatable opening pawl 7a for engagement in a counterpart 11a) for contact closure the torsion spring mechanism 3 and for storing the contact-opening rotational switching energy; in Fig. 3b and Fig.
- a contact-opened Torsionsarrettechnik 7b, 11c (comprising a rotatable closure pawl 7b for engagement in a counterpart 11c) for partially recovering the contact-opening rotational switching energy; and in Fig. 3d a preloaded contact-opened Torsionsarret réelle 7b, 11d (comprising the rotatable Closing pawl 7b for engagement in a counterpart 11d) for recharging rotational losses and for storing the entire contact-closing rotational switching energy of the torsion spring mechanism 3.
- the closure pawl 7b prevents the snapback 30 'of the overshooting torsion spring mechanism 3.
- the Torsionsspannvorraum 9 only has the energy loss for example, about 36% of the stored total rotational switching energy (corresponding to a constant friction torque of 10% of the maximum torque) compensate and recharge.
- the torsion spring 3 which is in particular a torsion spring 3 can be reduced in size.
- the frictional losses in this case are estimated to be 14 J for a contact-opening switching operation.
- the invention also provides a method for current switching, in particular in a switch 1 for medium or high voltage of the type described, wherein between two spaced fixed electrodes 2a, 2b a rotatably movable switching contact piece 2c is arranged by a rotary drive 3, 6-9 in a first Rotation switching direction 30 for the purpose of contact opening and in a second rotational switching direction 31 for the purpose of contact closure of the fixed electrodes 2a, 2b is set in a rotary motion, wherein the switching contact piece 2c by mechanical torsion spring force F f0 , F fs is rotated and the torsional spring force F f0 for contact opening and the Torsion spring force F fs for contact closure by a single common mechanical torsion spring mechanism 3 are applied.
- a rotatably movable switching contact piece 2c is arranged by a rotary drive 3, 6-9 in a first Rotation switching direction 30 for the purpose of contact opening and in a second rotational switching direction 31 for the purpose of contact closure of the fixed electrodes 2a
- the rotational energy of the switching contact piece is preferred 2c when opening contact and / or contact closure partially recovered.
- the first and second rotation switching directions 30, 31 are typically opposite each other.
- the switching contact piece 2c at the contact opening and / or Contact closure a force-free neutral angular deflection 11b of the torsion spring mechanism 3 or the switching contact piece Go through 2c.
- the contact opening and the Contact closure should be synchronous and at high speed while avoiding or reducing arcing 12a, 12b are performed.
- inventions relate u.a. the use as a switch 1 for medium or high voltages and / or Currents, as circuit breaker 1, disconnector, current limiter or current-limiting switch in power supply networks.
- the invention also includes an electrical switchgear, in particular a high or medium voltage switchgear, characterized by a device 1 as previously described.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Mechanisms For Operating Contacts (AREA)
Abstract
Description
- Fig. 1
- zeigt in Draufsicht ein Ausführungsbeispiel eines erfindungsgemässen Rotations-Stromschalters mit elektrodynamischem Antrieb und Rotationsfederkraftunterstützung;
- Fig. 2a, 2b
- zeigen die Kontaktanordnung aus Fig. 1 vergrössert in Draufsicht und Seitenansicht;
- Fig. 3a-3d
- zeigt die Verklinkungsvorrichtung in geschlossener Schalterstellung (Fig. 3a), beim Öffnen (Fig. 3b), in offener Schalterposition (Fig. 3c) und in vorgespannter offener Schalterposition (Fig. 3d); und
- Fig. 4
- zeigt den Torsionswinkel als Funktion der Zeit beim Kontaktöffnen des Brückenkontakts.
- 1
- Leistungsschalter, Synchronschalter
- 2a, 2b
- feststehende Elektroden, Metallplatten
- 2c
- rotierende Elektrode, Brückenkontaktstück
- 20
- Strompfad, Nennstrompfad
- 3
- Torsionsfedermechanismus, Drehstabfeder
- 30
- erste Rotationsschaltrichtung zum Kontaktöffnen
- 30'
- Rückschlagbewegung beim Kontaktöffnen
- 31
- zweite Rotationsschaltrichtung zum Kontaktschliessen
- 4
- Rotationsachse
- 5
- gekapseltes Schaltergehäuse
- 6
- Durchführung für Rotationsantrieb
- 7
- Verklinkungsvorrichtung
- 7a
- Öffnungsklinke
- 7b
- Verschliessungsklinke
- 8
- Schaltersteuerung
- 8a
- Schaltbefehl, Öffnungssignal, Schliesssignal
- 8b
- Torsionsspannbefehl, Energienachladung
- 9
- Torsionsspannvorrichtung, Thomson Antrieb, Schrittmotor
- 10
- Federkontakt, Multikontaktfedern
- 10'
- Federverhalten der Fixkontakte (symbolisch)
- 11a
- kontaktgeschlossene Winkelauslenkung (Schalterposition) oder Winkelhalterung
- 11b
- neutrale (kräftefreie) Winkelauslenkung
- 11c
- kontaktgeöffnete Winkelauslenkung oder Winkelhalterung
- 11d
- vorgespannte kontaktgeöffnete Winkelauslenkung oder Winkelhalterung
- 7a, 11a
- kontaktgeschlossene Torsionsarretierung
- 7b, 11c
- kontaktgeöffnete Torsionsarretierung
- 7b, 11d
- vorgespannte kontaktgeöffnete Torsionsarretierung
- 12a, 12b
- Teillichtbögen
- 13a, 13b
- Kontaktspalte
- b
- Breite des Brückenkontakts
- 1.
- Länge des Brückenkontakts
- 11, 12
- Länge der Kontaktspalte
- FfO
- Torsionsfederkraft auf Brückenkontaktstück beim Öffnen
- FfS
- Torsionsfederkraft auf Brückenkontaktstück beim Schliessen
- ϕ
- Torsionswinkel
- t
- Zeit
Claims (11)
- Verfahren zur Stromschaltung, insbesondere in einem Schalter (1) für Mittel- oder Hochspannung, wobei zwischen zwei beabstandeten Festelektroden (2a, 2b) ein rotatorisch bewegliches Schaltkontaktstück (2c) angeordnet ist, das durch einen Rotationsantrieb (3, 6-9) in eine erste Rotationsschaltrichtung (30) zum Zwecke des Kontaktöffnens und in eine zweite Rotationsschaltrichtung (31) zum Zwecke des Kontaktschliessens der Festelektroden (2a, 2b) in eine Drehbewegung versetzt wird, dadurch gekennzeichnet, dassa) das Schaltkontaktstück (2c) durch mechanische Torsionsfederkraft (FfO, FfS) gedreht wird undb) die Torsionsfederkraft (FfO) zum Kontaktöffnen und die Torsionsfederkraft (FfS) zum Kontaktschliessen von einem gemeinsamen mechanischen Torsionsfedermechanismus (3) aufgebracht werden.
- Das Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass eine Rotationsenergie des Schaltkontaktstücks (2c) beim Kontaktöffnen und/oder Kontaktschliessen teilweise wiedergewonnen wird.
- Das Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass Rotationsenergieverluste des Schaltkontaktstücks (2c) beim Kontaktöffnen und/oder Kontaktschliessen durch eine Torsionsspannvorrichtung (9), insbesondere durch einen Thomson Antrieb (9) oder einen Schrittmotor (9), wiederaufgeladen werden.
- Das Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dassa) die erste und die zweite Rotationsschaltrichtung (30, 31) einander entgegengesetzt sind und/oderb) vom Schaltkontaktstück (2c) beim Kontaktöffnen und/oder Kontaktschliessen eine kräftefreie neutrale Winkelauslenkung (11b) des Torsionsfedermechanismus (3) durchlaufen wird und/oderc) das Kontaktöffnen und das Kontaktschliessen synchron und mit hoher Geschwindigkeit unter Vermeidung oder Reduktion von Lichtbogenbildung (12a, 12b) durchgeführt wird.
- Stromschalter (1) zur Leistungsschaltung, insbesondere zur Ausführung des Verfahren nach einem der vorangehenden Ansprüche, umfassend zwei beabstandete Festelektroden (2a, 2b), ein rotatorisch bewegliches Schaltkontaktstück (2c) und einen Rotationsantrieb (3, 6-9) zum Drehen des Schaltkontaktstücks (2c) in eine erste Rotationsschaltrichtung (30) zum Zwecke des Kontaktöffnens und in eine zweite Rotationsschaltrichtung (31) zum Zwecke des Kontaktschliessens der Festelektroden (2a, 2b), dadurch gekennzeichnet, dass der Rotationsantrieb (3, 6-9) einen gemeinsamen mechanischen Torsionsfedermechanismus (3) zum Drehen des Schaltkontaktstücks (2c) in die erste Rotationsschaltrichtung (30) und in die zweite Rotationsschaltrichtung (31) aufweist.
- Stromschalter (1) nach Anspruch 5, dadurch gekennzeichnet, dass der Rotationsantrieb (3, 6-9) eine Verklinkungsvorrichtung (7) zum teilweisen Wiedergewinnen mechanischer Rotationsschaltenergie und eine Torsionsspannvorrichtung (9) zum mechanischen Wiederaufladen von Rotationsschaltenergieverlusten umfasst.
- Stromschalter (1) nach einem der Ansprüche 5-6, dadurch gekennzeichnet, dassa) eine kräftefreie neutrale Winkelauslenkung (11b) des Torsionsfedermechanismus (3) vorhanden ist, die zwischen einer kontaktgeschlossenen Winkelauslenkung (11a) und einer kontaktgeöffneten Winkelauslenkung (11c) des Torsionsfedermechanismus (3) liegt und/oderb) die erste und die zweite Rotationsschaltrichtung (30, 31) einander entgegengesetzt sind.
- Stromschalter (1) nach einem der Ansprüche 5-7, dadurch gekennzeichnet, dassa) die Verklinkungsvorrichtung (7) Verklinkungsmittel (7a, 7b, 11a, 11b, 11c, 11d) zum teilweisen Wiedergewinnen mechanischer Rotationsschaltenergie für beide Rotationsschaltrichtungen (30, 31) aufweist und/oderb) die Torsionsspannvorrichtung (9) Torsionsspannmittel (9) zum mechanischen Wiederaufladen von Rotationsenergieverlusten für beide Rotationsschaltrichtungen (30, 31) umfasst,c) insbesondere dass der Rotationsantrieb (3, 6-9) eine Schaltersteuerung (8) zur Steuerung der Verklinkungsvorrichtung (7) und der Torsionsspannvorrichtung (9) umfasst.
- Stromschalter (1) nach einem der Ansprüche 5-8, dadurch gekennzeichnet, dass die Verklinkungsvorrichtung (7) eine kontaktgeschlossene Torsionsarretierung (7a, 11a) zum Kontaktschliessen des Torsionsfedermechanismus (3) und zum Speichern der kontaktöffnenden Rotationsschaltenergie, eine kontaktgeöffnete Torsionsarretierung (7b, 11c) zum teilweisen Wiedergewinnen der kontaktöffnenden Rotationsschaltenergie und eine vorgespannte kontaktgeöffnete Torsionsarretierung (7b, 11d) zum Wiederaufladen von Rotationsenergieverlusten und zum Speichern der gesamten kontaktschliessenden Rotationsschaltenergie des Torsionsfedermechanismus (3) aufweist.
- Stromschalter (1) nach einem der Ansprüche 5-9, dadurch gekennzeichnet, dassa) der mechanische Torsionsfedermechanismus (3) eine Drehstabfeder (3) ist und/oderb) die Torsionsspannvorrichtung (9) ein Thomson Antrieb (9) oder ein Schrittmotor (9) ist und/oderc) das Schaltkontaktstück (2c) ein Brückenschaltkontaktstück (2c) ist, das um eine Mittelachse (4) rotierend gelagert ist und das beim Kontaktöffnen zu jeder Festelektrode (2a, 2b) jeweils einen Kontaktspalt (13a, 13b) freigibt und/oderd) der Stromschalter (1) in einem gekapselten Schaltergehäuse (5) angeordnet ist und für den Rotationsantrieb (3, 6-9) eine gasdichte Rotationsdurchführung (6) aufweist und/odere) der Stromschalter (1) für beide Rotationsschaltrichtungen (30, 31) schnell schaltend ist und insbesondere ein schnell schaltender Synchronschalter (1) ist.
- Elektrische Schaltanlage, insbesondere Hoch- oder Mittelspannungsschaltanlage, gekennzeichnet durch einen Stromschalter (1) nach einem der Ansprüche 5-10.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03405906A EP1544879B1 (de) | 2003-12-18 | 2003-12-18 | Schneller Leistungsschalter für Hoch-oder Mittelspannung |
| DE50306400T DE50306400D1 (de) | 2003-12-18 | 2003-12-18 | Schneller Leistungsschalter für Hoch-oder Mittelspannung |
| AT03405906T ATE352851T1 (de) | 2003-12-18 | 2003-12-18 | Schneller leistungsschalter für hoch-oder mittelspannung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP03405906A EP1544879B1 (de) | 2003-12-18 | 2003-12-18 | Schneller Leistungsschalter für Hoch-oder Mittelspannung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1544879A1 true EP1544879A1 (de) | 2005-06-22 |
| EP1544879B1 EP1544879B1 (de) | 2007-01-24 |
Family
ID=34486554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03405906A Expired - Lifetime EP1544879B1 (de) | 2003-12-18 | 2003-12-18 | Schneller Leistungsschalter für Hoch-oder Mittelspannung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1544879B1 (de) |
| AT (1) | ATE352851T1 (de) |
| DE (1) | DE50306400D1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887594A2 (de) | 2006-08-09 | 2008-02-13 | Siemens Aktiengesellschaft | Antrieb für einen elektromechanischen Schalter |
| US9431184B2 (en) | 2013-11-06 | 2016-08-30 | Lsis Co., Ltd. | Circuit breaker |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101522266B1 (ko) * | 2013-11-06 | 2015-05-21 | 엘에스산전 주식회사 | 회로 차단기 |
| KR101522267B1 (ko) * | 2013-11-06 | 2015-05-21 | 엘에스산전 주식회사 | 회로 차단기 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB561590A (en) * | 1942-11-20 | 1944-05-25 | Reyrolle A & Co Ltd | Improvements in or relating to operating means for electric switchgear |
| US2846622A (en) * | 1956-09-21 | 1958-08-05 | Gen Electric | Operating mechanism for an electric circuit breaker |
| US3268687A (en) * | 1963-05-20 | 1966-08-23 | Waghorne John Henry | High speed device for interrupting and completing high voltage power circuits |
| US5777404A (en) * | 1994-11-07 | 1998-07-07 | Has; Peter Victor | Rotating actuator |
-
2003
- 2003-12-18 AT AT03405906T patent/ATE352851T1/de not_active IP Right Cessation
- 2003-12-18 EP EP03405906A patent/EP1544879B1/de not_active Expired - Lifetime
- 2003-12-18 DE DE50306400T patent/DE50306400D1/de not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB561590A (en) * | 1942-11-20 | 1944-05-25 | Reyrolle A & Co Ltd | Improvements in or relating to operating means for electric switchgear |
| US2846622A (en) * | 1956-09-21 | 1958-08-05 | Gen Electric | Operating mechanism for an electric circuit breaker |
| US3268687A (en) * | 1963-05-20 | 1966-08-23 | Waghorne John Henry | High speed device for interrupting and completing high voltage power circuits |
| US5777404A (en) * | 1994-11-07 | 1998-07-07 | Has; Peter Victor | Rotating actuator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1887594A2 (de) | 2006-08-09 | 2008-02-13 | Siemens Aktiengesellschaft | Antrieb für einen elektromechanischen Schalter |
| EP1887594A3 (de) * | 2006-08-09 | 2008-05-07 | Siemens Aktiengesellschaft | Antrieb für einen elektromechanischen Schalter |
| US9431184B2 (en) | 2013-11-06 | 2016-08-30 | Lsis Co., Ltd. | Circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE352851T1 (de) | 2007-02-15 |
| DE50306400D1 (de) | 2007-03-15 |
| EP1544879B1 (de) | 2007-01-24 |
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