EP1564773B1 - Mehrpoliger Schutzschalter mit einpoligen Schalteinheiten - Google Patents

Mehrpoliger Schutzschalter mit einpoligen Schalteinheiten Download PDF

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Publication number
EP1564773B1
EP1564773B1 EP05354003.5A EP05354003A EP1564773B1 EP 1564773 B1 EP1564773 B1 EP 1564773B1 EP 05354003 A EP05354003 A EP 05354003A EP 1564773 B1 EP1564773 B1 EP 1564773B1
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EP
European Patent Office
Prior art keywords
circuit breaker
units
layer
blocks
breaking
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Active
Application number
EP05354003.5A
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English (en)
French (fr)
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EP1564773A1 (de
Inventor
Henri Schneider Electric Industries SAS Auque
Marc Schneider Electric Industries SAS Serpinet
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP1564773A1 publication Critical patent/EP1564773A1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to a multipole circuit breaker, comprising unipolar breaking blocks in the form of housings with two large lateral faces and having at least one movable contact which cooperates with at least one fixed contact, a control mechanism common to a set breaking blocks for controlling the opening or closing of the contacts of said blocks, first upstream electrical connection means, second downstream electrical connection means.
  • Each unipolar breaking block constitutes a breaking subassembly housed in an envelope constituting the housing of the multipole circuit breaker.
  • Each pole of the circuit breaker comprises at least one unipolar block with at least one rotary contact associated with a breaking chamber.
  • the unipolar break block is contained in a molded plastic housing. The electrical connection of the block to the rest of the device is effected by means of two connection pads connected to the fixed contacts.
  • the arrangement or positioning of unipolar break blocks within the multipole circuit breaker may vary from one embodiment to another. Depending on the position of the breaking blocks, there may be strong constraints for positioning the blocks together. In addition, the control mechanism blocks as well as mechanical links between the moving parts of the different blocks sometimes require achievements of great precision.
  • the patent WO00 / 30228 A1 has a multipole circuit breaker with cutoff blocks aligned with each other. This alignment is performed along an axis perpendicular to the set of mains connection bars to which the multipole circuit breaker is connected.
  • This arrangement of the unipolar blocks makes it possible to reduce the bulk of the multipole circuit breaker according to its width but imposes significant construction and operating constraints. This arrangement involves an increase in the lengths of copper necessary for the connection of the different blocks to the connection clamps fixing on the corresponding bars. These excessive lengths of conductive wire are responsible for heating the device when it is traversed by strong electric currents.
  • the control of the blocks is performed by a mechanically controlled system consisting of connecting rods whose excessive lengths make the system mechanically more complex, less reliable and having a longer response time.
  • each block of cut must necessarily be associated with an evacuation system.
  • the distance between the bars of the mains connection busbar is greater than that of a circuit breaker whose blocks are placed side by side.
  • Licences FR-A-2682531 or US6448522 B1 have multipole circuit breakers where all break blocks are positioned side by side. These solutions have the advantage of having control mechanisms for cutoff blocks having simplified and reliable mechanical connections. However, increasing the width of this type of multipole circuit breaker in comparison with the solution described in the document WO00 / 30228 A1 , may be a disadvantage when the electrical panels are limited in size and must contain several multipole circuit breakers.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide a multipolar circuit breaker reduced size and simplified manufacturing.
  • Another object of the invention is to provide a circuit breaker whose mechanical connection between the blocks is simplified.
  • a multipolar circuit breaker according to the invention comprises breaking blocks grouped on two superimposed layers, at least one layer comprising at least one pair of blocks, the control mechanism comprising mechanical connection means for simultaneously operating the unipolar cutoff blocks of each layer.
  • the cutoff block or blocks of each layer comprise at least one connecting rod coupled to at least one crank, the cranks of each layer are interconnected by a control rod, the control mechanism actuating simultaneously the cranks of unipolar break blocks.
  • the circuit breaker consists of at least three unipolar breaking blocks grouped by a pair of blocks on a first layer and a block on a second layer.
  • the circuit breaker consists of four unipolar breaking blocks grouped by a first pair of blocks on a first layer of blocks and a second pair of blocks on a second layer.
  • the lower surfaces of the cutoff blocks of a first layer are respectively contiguous to the lower surfaces of the cutoff blocks of a second layer.
  • the two block layers are shifted relative to each other along the longitudinal axis of the blocks to form a gas evacuation column from low exhaust openings of the cutoff blocks.
  • the longitudinal axis of the gas evacuation column is perpendicular to the longitudinal axes of the cutoff blocks.
  • the difference in the respective lengths of the connecting bars to the mains connection busbar of the blocks of the same pair is substantially equal to the distance separating said bars.
  • a tenon placed on the lower part of the front face of the circuit breaker housing allows on the one hand the positioning of circuit breaker in a location of an electrical panel and on the other hand a rotation of said circuit breaker in order to gradually connect the clamps on the mains connection bars, the axis of rotation around which the circuit breaker moves then extending perpendicularly to the side faces of the circuit breaker.
  • the terminals or the terminal lugs are connected and positioned relative to the first connecting bars so that there is a clearance angle between the plane of the front surface of the circuit breaker and the axis of the conductors connected to said terminals or pod.
  • the multipole circuit breaker 1 comprises four blocks 2 of unipolar cutoff.
  • Each cutoff block 2 comprises a molded casing of parallelepipedal overall shape having an upper surface 3 and a lower surface 4 as well as two large parallel lateral faces 44.
  • a movable contact bridge is housed inside said blocks. Said bridge is carried by a bar 5 extending perpendicularly to the large parallel side faces 44. This type of cutoff block is widely described in FIG. FR-A-2622347 of the plaintiff.
  • a double-cut rotary contact pivotable about an axis of rotation 6 between a closed position and an open position is traditionally observed.
  • the rotary contact is constituted by a pair of lever arms 7 extending between the axis of rotation 6 and two opposed movable contacts 8 cooperating respectively with two fixed contacts 9. There are thus two pairs of each formed contact of a fixed contact 9 and a movable contact 8.
  • the contact bridge can pivot about an axis of rotation 6 whose axis is perpendicular to the two large parallel side faces 44 of the cutoff block 2.
  • the movable contact bridge is mounted floating on the bar 5 by means of two opposite springs.
  • each pair of contacts is associated with a breaking chamber 10 with a deionization sheet.
  • a gas exhaust opening At the rear of each interrupting chamber is provided a gas exhaust opening to the outside of the cutoff block 2.
  • each cutoff block comprises two openings.
  • a first opening 12 is located near the upper surface 3 and a second opening, called the bottom opening 11, is located near the lower surface 4 of the cutoff block 2.
  • the unipolar breaking block is an independent unit constituting one of the poles of the circuit breaker 1.
  • the combination of four unipolar blocks 2 allows the realization of a quadrupole circuit breaker.
  • the combination of three unipolar blocks allows the realization of a tripolar circuit breaker.
  • the unipolar cutoff blocks 2 are arranged side by side in pairs, contiguous to their large lateral faces 44.
  • the bars 5 of two breaking blocks of the same pair are mechanically connected to the less a connecting rod 13 which extends parallel to the axis of rotation 6 of said bars 5.
  • two connecting rods 13 are used. Said rods 13 are eccentric with respect to the axis of rotation 6.
  • the connecting rods 13 are connected by means of a crank 14 comprising two opposite arms, each traversed by a connecting rod 13. The axis of rotation of the crank is aligned with the axis of rotation 6 of the bars 5.
  • the two pairs of unipolar break blocks are themselves contiguous with the lower surfaces 4 of the cutoff blocks 2.
  • the four blocks unipolar cutoff assemblies on two superimposed layers thus form a compact module of parallelepipedal overall shape composed of two upper blocks and two lower blocks respectively disposed on an upper layer and a lower layer.
  • the blocks of the upper layer are opposite with the rear face 15 of the casing of the circuit breaker 1 and conversely the blocks of the lower layer will be opposite with the anterior face 16 of the circuit breaker 1.
  • a control mechanism 17 is attached to the upper face 3 of one of the unipolar cutoff blocks of the upper layer.
  • This mechanism 17 has a joystick 18 and a toggle.
  • it comprises two outer metal flanges extending parallel and spaced apart by a distance substantially corresponding to the width of a unipolar breaking block.
  • the control mechanism 17 is accessible through an opening 70 made on the rear face 15 of the housing of the multipole circuit breaker 1.
  • the opening or closing control mechanism 17 comprises mechanical connection means for simultaneously actuating the unipolar breaking blocks of each layer. Said mechanism acts directly on the crank 14 of the cutting blocks of the upper layer placed in contact with said mechanism. The control of the cutoff blocks of the lower layer is done by means of a control rod 20 respectively connecting the cranks 14 of the cutoff blocks of the two layers. Said mechanism 17 thus controls the simultaneous opening or closing of the contacts 8, 9 of all the cutoff blocks 2.
  • the two layers of cutoff blocks 2 are shifted in relation to each other in a direction parallel to the longitudinal axis Y of the breaking blocks. This shifting of the blocks creates a free space having a column-like shape extending between the lateral faces 40 of the casing of the circuit-breaker 1.
  • the axis X of the column 21 is perpendicular to the longitudinal axis Y of said blocks.
  • the low gas exhaust openings 11 placed near the four lower surfaces 4 of the cutoff blocks 2 are in direct connection with said column 21. The gases are thus collected, channeled and discharged outside the casing of the circuit breaker 1.
  • a first series of fixed contacts 9 of the unipolar cutoff blocks 2 is connected to terminals or terminal lugs 22 by first connection bars 28. These terminals or terminal lugs 22 are used for the downstream electrical connection with, for example, starting lines. In addition, they are accessible from the lower part of the rear face 15 of the circuit breaker 1.
  • the terminals or the terminal lugs 22 are connected and positioned with respect to the first connecting bars 28 in such a way that there exists a clearance angle ⁇ between the plane formed by the anterior surface 16 of the circuit breaker 1 and the axis of the conductors. connected to said terminals or terminal 22.
  • the contact surface 60 of the terminal lugs 22 on which the conductors is positioned is not parallel to the plane formed by the anterior face 16 of the circuit breaker 1. Said contact surface 60 forms then an angle ⁇ with said surface 16.
  • connection terminals 22 of cylindrical or quasi-cylindrical shape the longitudinal axis of said terminals 22 form an angle ⁇ with the front surface 16 of the circuit breaker 1.
  • terminals or terminal lugs 22 make it possible to reduce the distance between the posterior and anterior surfaces 16 of said circuit breaker 1.
  • a second series of fixed contacts of the unipolar cutoff blocks 9 is connected to connection clamps 25 by second connecting bars 27.
  • the two connecting bars 27 of the blocks of the same pair are of different lengths. The difference in length is substantially equal to the distance D2 separating said mains connecting bars 26.
  • the connecting bars 27 of the same pair of blocks consist of a first part of the same length and length. same shape and a second portion of different length, said difference is equal to the distance D2 separating the mains connection bars 26.
  • connection clamps 25 are intended for the upstream electrical connection of the circuit breaker to the power supply system. They are placed on the front face 16 of the circuit breaker box. Furthermore, said clips 25 of the circuit breaker are in direct contact with a set of busbar 26 sector located in the electrical supply panel. These connection bars 26, generally made of aluminum or copper, are perpendicular to the lateral faces 40 of said circuit breaker case 1.
  • the installation of the circuit breaker in the electrical supply panel takes place as follows.
  • a tenon 30 placed on the lower part of the front face 16 of the circuit breaker 1 housing is plugged into a location 31 of the electrical panel.
  • a rotation of the circuit breaker in the direction of the arrow 32 of the figure 5 is performed in order to connect the clamps 25 to the bars 26 of the mains connection busbar.
  • the axis of rotation around which the circuit breaker moves, then extends perpendicular to the side faces 40 of the circuit breaker 1.
  • the clamps 25 of the circuit breaker are arranged in such a way that they come to connect successively and progressively to the busbar mains connection. This progressive connection reduces the useful effort for the installation of the circuit breaker in the electrical panel.
  • locking means positioned opposite the tenon 30 on the upper part of the rear face 15 of the casing of the circuit breaker 1 can rigidly fix the circuit breaker to the electrical panel.
  • the number of clamps per pole is adjustable according to the size of the circuit breaker. For example, as shown on the Figures 5 to 7 two clamps 25 are used per pole for a 630 amp circuit breaker 1 and only a 250 clamp for a 250 amp 250 circuit breaker.
  • the distance between these clamps is equal to D1.
  • the distances separating respectively all the tongs skewered on the same connection bar 26 will always be equal to an integer multiple of the distance D1.
  • connection clamps 25 are then connected to the connection bars 26 through openings 52 made on The openings 52 are substantially rectangular in shape and are aligned above the mains connection bars 26.
  • At least three series of parallel apertures 52 for a three-pole circuit breaker and four parallel series for a four-pole circuit breaker are then observed.
  • a strip 51 of insulating material protrudes from the upper plane of the protective rail 50. This band 51 allows better isolation of the clamps 25 at the time of their insertion on the connecting bars 26.
  • the rectangular openings of the same series are spaced from each other by a step whose value corresponding to the distance D1 separating the clamps 25 a circuit breaker pole.
  • the same protection rail 50 accepts circuit breakers of different sizes placed side by side.
  • the circuit breaker comprises a trip unit which is either integrated in the circuit breaker housing or is attached to the rear surface of said housing.
  • the trigger of electronic or electromechanical type can be common to all the cutoff blocks.
  • the multipole breaking device consists of three unipolar cutoff blocks 2 thus forming a tripolar circuit breaker. Unlike the quadrupole circuit breaker described above, the volume occupied by the fourth break block is left vacant or occupied by a substitute spacer. In the embodiment of this variant according to the figure 8 one of the two blocks of the upper layer is then deleted.
  • the unipolar block isolated from the upper layer comprises a connecting rod 13 which extends parallel to the axis of rotation 6 of the bar supporting the movable contacts 8.
  • two connecting rods 13 are used. Said rods are eccentric with respect to the axis of rotation of said rod 5.
  • the connecting rods are connected by means of a crank 14 having two opposite arms, each traversed by a connecting rod.
  • the axis of rotation of the crank is aligned with the axis of rotation of the bar 5.
  • the control mechanism is directly placed on the isolating block isolated from the upper layer.
  • the opening or closing control mechanism 17 acts directly on the crank of the upper block.
  • the control of the lower cutoff blocks is done by means of a control rod 20 respectively connecting the crank of the cutoff block of the upper layer and that of the lower layer. Said mechanism thus controls the simultaneous opening or closing of the contacts of all the breaking blocks.
  • the terminals 22 or terminal lugs are used for the upstream electrical connection with, for example, the supply lines of the power supply system.
  • the connection clamps 25 in direct contact with a set of connecting rod 26 are then intended for the downstream electrical connection of the circuit breaker.
  • the first series of fixed contacts 9 of the unipolar breaking blocks is connected to clamps 25 by the first connecting bars 28.
  • the second series of fixed contacts of the unipolar breaking blocks is also connected to clips by the second connecting bars 27. Clamps are therefore used for downstream and upstream connections.

Landscapes

  • Breakers (AREA)
  • Patch Boards (AREA)
  • Distribution Board (AREA)

Claims (10)

  1. Mehrpoliger Leistungsschalter (1) mit einpoligen Schaltblöcken, die in kastenförmigen Gehäusen mit zwei großen Seitenwänden (44) angeordnet sind und mindestens einen beweglichen Kontakt (8), welcher mit mindestens einem feststehenden Kontakt (9) zusammenwirkt, einen mehreren Schaltblöcken (2) zugeordneten gemeinsamen Schaltmechanismus (17) zur Steuerung der Ausschaltung bzw. Einschaltung der Kontakte der genannten Schaltblöcke sowie erste, einspeiseseitige Anschlussmittel und zweite, abgangsseitige Anschlussmittel umfasst, dadurch gekennzeichnet, dass die Schaltblöcke (2) in zwei übereinander liegenden Lagen angeordnet sind, wobei mindestens eine Lage mindestens ein Schaltblockpaar umfasst und der Schaltmechanismus (17) mechanische Verbindungsmittel (13, 20) zur gleichzeitigen Betätigung der einpoligen Schaltblöcke (2) jeder Lage umfasst.
  2. Leistungsschalter nach Anspruch 1, dadurch gekennzeichnet dass der Schaltblock/die Schaltblöcke jeder Lage mindestens eine Verbindungsstange (13) umfasst/umfassen, die an mindestens einen Drehhebel (14) angekoppelt ist und dass die Drehhebel (14) jeder Lage über eine Treibstange (20) miteinander verbunden sind, wobei der Schaltmechanismus (17) die Drehhebel (14) der einpoligen Schaltblöcke (2) gleichzeitig beaufschlagt.
  3. Leistungsschalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass er aus mindestens drei einpoligen Schaltblöcken (2) besteht, wobei ein Schaltblockpaar in einer ersten Lage und ein Schaltblock in einer zweiten Lage angeordnet sind.
  4. Leistungsschalter nach Anspruch 3, dadurch gekennzeichnet, dass er aus vier einpoligen Schaltblöcken (2) besteht, wobei ein erstes Schaltblockpaar in einer ersten Schaltblocklage und ein zweites Schaltblockpaar in einer zweiten Lage angeordnet sind.
  5. Leistungsschalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Unterseiten (4) der Schaltblöcke (2) einer ersten Lage an die Unterseiten (4) der Schaltblöcke (2) einer zweiten Lage angebaut sind.
  6. Leistungsschalter nach Anspruch 5, dadurch gekennzeichnet, dass die beiden Schaltblocklagen in einer Längsachse (Y) der Schaltblöcke versetzt gegeneinander angeordnet sind, um einen Ableitkanal (21) für die aus unteren Auslassöffnungen (11) der Schaltblöcke (2) austretenden Gase zu bilden.
  7. Mehrpoliger Leistungsschalter nach Anspruch 6, dadurch gekennzeichnet, dass die Längsachse (X) des Gasableitkanals (21) senkrecht zu den Längsachsen (Y) der Schaltblöcke angeordnet ist.
  8. Leistungsschalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Längenunterschied zwischen den Verbindungsschienen (27) zum Anschluss eines Schaltblockpaars an die Einspeise-Sammelschienen (26) annähernd dem Abstand (D2) zwischen den genannten Sammelschienen entspricht.
  9. Leistungsschalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein im unteren Bereich der Vorderseite (16) des Gehäuses des Leistungsschalters (1) ausgebildeter Steckfuß (30) einerseits die Positionierung des Leistungsschalters in einem Einbauplatz (31) einer elektrischen Schaltanlage und andererseits die Drehung des genannten Leistungsschalters erlaubt, um ein sukzessives Aufschieben der Kontaktzangen (25) auf die Einspeise-Sammelschienen (26) zu bewirken, wobei die Drehachse, um die herum der Leistungsschalter verschwenkt wird, senkrecht zu den Seitenwänden (40) des Leistungsschalters (1) verläuft.
  10. Leistungsschalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anschlussklemmen oder Steckhülsen (22) relativ zu den ersten Verbindungsschienen (28) so angeordnet sind, dass zwischen der Ebene der Vorderseite (16) des Leistungsschalters (1) und der Achse der an die genannten Anschlussklemmen oder Steckhülsen (22) angeschlossenen Leiter ein Öffnungswinkel (β) ausgebildet ist.
EP05354003.5A 2004-02-10 2005-01-11 Mehrpoliger Schutzschalter mit einpoligen Schalteinheiten Active EP1564773B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0401248 2004-02-10
FR0401248A FR2866152B1 (fr) 2004-02-10 2004-02-10 Disjoncteur multipolaire a blocs de coupure unipolaire

Publications (2)

Publication Number Publication Date
EP1564773A1 EP1564773A1 (de) 2005-08-17
EP1564773B1 true EP1564773B1 (de) 2014-05-21

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Application Number Title Priority Date Filing Date
EP05354003.5A Active EP1564773B1 (de) 2004-02-10 2005-01-11 Mehrpoliger Schutzschalter mit einpoligen Schalteinheiten

Country Status (5)

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US (1) US7323958B2 (de)
EP (1) EP1564773B1 (de)
JP (1) JP4549879B2 (de)
CN (1) CN1655306B (de)
FR (1) FR2866152B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101004982B (zh) * 2006-01-17 2013-08-14 叶可 带接触器功能的小型双极断路器
US7915558B2 (en) * 2007-08-13 2011-03-29 Mitsubishi Electric Power Products, Inc. Circuit breaker with articulating control cabinet
CN104409293A (zh) * 2014-12-12 2015-03-11 常熟市通润开关厂有限公司 一种多极断路器的辅助机构
DE102015108629A1 (de) * 2015-06-01 2016-12-01 Eaton Electrical Ip Gmbh & Co. Kg Mehrpoliges Schaltgerät in Leistenbauform mit verbesserter Abschaltung
CN108933050B (zh) * 2017-05-29 2020-06-09 西门子股份公司 电气开关装置

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Publication number Priority date Publication date Assignee Title
US3614687A (en) * 1968-08-28 1971-10-19 Tokyo Shibaura Electric Co Circuit interrupting apparatus
JPS58131631A (ja) * 1982-01-30 1983-08-05 松下電工株式会社 回路遮断器
US4724513A (en) * 1982-04-19 1988-02-09 General Electric Company Method of retaining molded case circuit breakers
DE3242062A1 (de) * 1982-11-13 1984-05-17 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer schalter
DE3431288A1 (de) * 1984-08-23 1986-03-06 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer niederspannungs-leistungsschalter mit einem zweiarmigen kontakthebel
JPH0643989Y2 (ja) * 1985-06-03 1994-11-14 三菱電機株式会社 多極形回路しや断器の警報装置
JPH01265423A (ja) * 1988-04-18 1989-10-23 Fuji Electric Co Ltd 回路遮断器
JPH0810923Y2 (ja) * 1990-02-15 1996-03-29 日東工業株式会社 多極型回路遮断器
FR2682531B1 (fr) 1991-10-15 1993-11-26 Merlin Gerin Disjoncteur multipolaire a blocs unipolaires.
FR2682530B1 (fr) * 1991-10-15 1993-11-26 Merlin Gerin Gamme de disjoncteurs basse tension a boitier moule.
IT1292453B1 (it) * 1997-07-02 1999-02-08 Aeg Niederspannungstech Gmbh Gruppo rotante di contatti per interrutttori di alta portata
JP2001143597A (ja) * 1999-11-15 2001-05-25 General Electric Co <Ge> 遮断器の回転式接点集成体
US6924721B2 (en) * 2003-07-14 2005-08-02 Eaton Corporation Gas segregator barrier for electrical switching apparatus

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Publication number Publication date
CN1655306A (zh) 2005-08-17
EP1564773A1 (de) 2005-08-17
US7323958B2 (en) 2008-01-29
US20050174203A1 (en) 2005-08-11
CN1655306B (zh) 2011-06-08
JP2005251742A (ja) 2005-09-15
FR2866152A1 (fr) 2005-08-12
FR2866152B1 (fr) 2006-03-17
JP4549879B2 (ja) 2010-09-22

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