EP0693763A1 - Mittelspannung elektrischer Schalter - Google Patents

Mittelspannung elektrischer Schalter Download PDF

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Publication number
EP0693763A1
EP0693763A1 EP95410067A EP95410067A EP0693763A1 EP 0693763 A1 EP0693763 A1 EP 0693763A1 EP 95410067 A EP95410067 A EP 95410067A EP 95410067 A EP95410067 A EP 95410067A EP 0693763 A1 EP0693763 A1 EP 0693763A1
Authority
EP
European Patent Office
Prior art keywords
contact
fixed
switch
movable
contacts
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
Application number
EP95410067A
Other languages
English (en)
French (fr)
Other versions
EP0693763B1 (de
Inventor
Gabriel Balsarin
Hugues Filiputti
Jacques Quenin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0693763A1 publication Critical patent/EP0693763A1/de
Application granted granted Critical
Publication of EP0693763B1 publication Critical patent/EP0693763B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H01H33/122—Load break switches both breaker and sectionaliser being enclosed, e.g. in SF6-filled container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches

Definitions

  • the present invention relates to medium voltage rotary multipole electric switches or circuit breakers.
  • a medium voltage electric circuit breaker as described in document FR 2 655 766 of the applicant, comprising a sealed enclosure filled with a gas such as sulfur hexafluoride in which are arranged a pair of main contacts and a vacuum cartridge containing a pair of respectively fixed and movable aligned arcing contacts electrically connected in parallel with said main contacts.
  • the aforementioned movable contact is slidably mounted in the cartridge while being connected to a control mechanism cooperating with the control mechanism of the main contacts so as to open the arcing contacts after the main contacts and close them before the main contacts.
  • the circuit is closed by the cut-off member, that is to say the vacuum cartridge, which causes significant design constraints at the level of the cartridge.
  • a multipole rotary switch as described in document FR 2 668 851 of the applicant, which consists mainly of a sealed revolution envelope filled with a gas with high dielectric strength, the inner periphery of which carries, by pole , a fixed input contact, a fixed output contact and a fixed earth contact. These contacts are angularly spaced and cooperate with a pivoting knife-shaped contact bridge carried by a rotary control shaft extending in the axis of the envelope, said shaft being able to selectively occupy three positions corresponding respectively to a position of opening, closing position, and grounding position of the switch.
  • this switch does not use the technique of vacuum cutting having the known advantages.
  • the present invention solves the problem which consists in creating a multipolar rotary switch (or circuit breaker), using the technique of vacuum cutting, which is of simple design and of reduced bulk, and eliminating the design constraints, mainly dimensional, linked to the passage of the nominal current through the cut-off member and to the operation of closing the switch on this same cut-off member.
  • the switching means comprise a switching pad electrically connected to the second contact of the bulb and a switching finger, one of the ends of which is articulated around an axis substantially parallel to or concurrent with the axis of rotation of the conductive bridge, said finger electrically connecting the bridge to the aforementioned stud during switching of the arc and breaking of the circuit.
  • one of the ends of the switching finger is connected in an articulated and electrically manner to the bridge, at an intermediate point thereof, while its other end is liable to come and remain in contact with the switching pad during switching and power failure.
  • the conductive bridge comprises means for driving the finger in rotation, during the opening of the switch, after the switching and breaking of the circuit, and during closing, until the moment when the first main mobile contact passes in front of the switching pad before the switch is completely closed.
  • the switching finger is articulated and electrically connected by one of its ends to the switching pad, while its other end cooperates with the first movable contact of the bridge.
  • the switch comprises means for automatically returning the finger to the position of contact with the first fixed contact of the switch, and means for temporarily attaching the finger to the first movable contact of the bridge.
  • one of the fixed contacts of the switch is electrically connected to electric cables, while the other is electrically connected to a busbar.
  • the switch further comprises a fourth fixed contact connected to the ground capable of being electrically connected by the conductive bridge to the fixed contact connected to the electric cables.
  • the aforementioned sequencing means comprise an extended fixed range provided on the aforementioned second fixed contact and a restricted fixed range provided on the first fixed contact.
  • the above-mentioned sequencing means comprise two extended fixed areas provided respectively on the two fixed contacts.
  • the mechanism for actuating the movable contact of the bulb comprises a cam driven in rotation by a shaft coupled to the drive mechanism of the driver bridge, said cam acting on two levers articulated by one of their ends around a same axis, said levers acting on an assembly slidably mounted in a support and integral with the movable contact of the bulb, the profile of the cam defining the opening and closing sequences of the bulb contacts.
  • the mobile assembly comprises two cylinders, respectively exterior and interior, provided with a bottom, said cylinders sliding one inside the other and comprising facing openings intended for the passage of the two levers between two axes integral with the interior cylinder. on which they are supported, said axes being slidably mounted by their ends in openings made on the one hand in the outer cylinder, and on the other part in two flanges supporting the mechanism, elastic washers being compressed during assembly between the bottom of the inner cylinder and the bottom of the outer cylinder, said outer cylinder carrying the movable contact of the bulb.
  • the actuation mechanism comprises a stud secured to the movable arcing contact and actuated by a drive mechanism cooperating with a dead center passage system comprising two links, each of the links having one end housed in an articulated manner in a semi-spherical housing belonging to a first part integral in translation with the movable arcing contact and one end housed in an articulated manner in a housing also semi-spherical belonging to a second fixed part, said links being resiliently held between these two parts , so as to be able to pivot around the axis of the semi-spherical housing provided in the fixed part when the movable contact moves.
  • the two links are housed in an articulated manner, by one of their ends, in two semi-sherical recesses provided respectively in two opposite walls of the stud, and by their opposite end, in two semi-spherical recesses provided in two contact blades mounted in opposition, on which spring blades are applied, the contact and spring blades being fixed relative to the movable contact.
  • the links are housed in an articulated manner, by one of their ends, in two semi-spherical recesses provided in a fixed support and by their opposite ends, in two semi-spherical recesses provided respectively in two contact blades mounted in opposition and fixed on the latter.
  • the subject of the invention is also a vacuum interrupter intended in particular for cutting off in a interrupter, of the type comprising a substantially cylindrical envelope closed by two bottoms containing a fixed contact and a movable contact mu in translation by an actuating mechanism, this mechanism comprising the previously mentioned characteristics taken alone or in combination.
  • FIGS. 1 to 5 illustrate a first embodiment of a rotary switch according to the invention in different positions corresponding respectively to a closed position, an intermediate open position, an open position, an intermediate closed position, and a switch ground position.
  • FIG. 6 illustrates an alternative embodiment of a switch according to the invention, in different positions corresponding to the different opening and closing stages previously mentioned.
  • FIG. 7 illustrates a perspective view of a first embodiment of the mechanism for actuating the contacts of the vacuum interrupter used in the invention.
  • Figure 8 illustrates a sectional view of the previous figure.
  • Figure 9 illustrates in a sectional view, an alternative embodiment of the actuation mechanism of the bulb contacts.
  • Figures 10 to 12 respectively illustrate a perspective view, a perspective view with cutaway, and a sectional view of the previous mechanism and Figures 13 and 14 two views in partial section of the same mechanism.
  • FIG. 1 to 6 we see a three-pole medium voltage switch with gas isolation.
  • This switch I is housed in an insulating enclosure E containing the active parts of the switch, which is placed in a sealed steel or metallized tank (not shown).
  • the aforementioned tank contains an insulating gas preferably maintained at a pressure close to atmospheric pressure, while the pressure prevailing inside the insulating envelope E will preferably be equal to or greater than this pressure.
  • the wall of the enclosure E can be that of a gas-insulated installation or station or that of a pole or of the three poles of the switch I.
  • this switch I mainly comprises inside the above-mentioned insulating enclosure E and by pole: three studs 1, 2, 3 passing in leaktight manner through the wall of the enclosure E, a disconnector or conductive bridge 4, consisting of two non-parallel blades 5, 6, carried by a control shaft A extending in the axis of the envelope E, said shaft A being connected to an external control mechanism (not shown), and a vacuum interrupter 8 comprising a fixed contact 9 and a movable contact 10 electrically connected respectively to two interior studs 12 and 11 of the enclosure E, said movable contact 10 being connected to an actuation mechanism M.
  • the first 1 of the studs passing through the enclosure wall E is connected electrically inside the enclosure to an interior stud 11, carrying a first fixed contact 1a and forms outside the enclosure, a connection pad 1b to a busbar B.
  • the second stud 2 forms at outside the enclosure, a connection range 2b to electric cables C and inside a second fixed contact 2a.
  • the third stud 3 passing through the wall of the enclosure forms, outside this enclosure, a connection pad 3b to earth T and inside the enclosure a third fixed contact 3a.
  • These three fixed contacts 1a, 2a, 3a are intended to cooperate with two movable contacts 5a, 6a formed respectively at the free ends of the blades 5, 6 of the conductive bridge 4.
  • the switch I further comprises a switching finger 7, one of the ends 7a of which is articulated around the same axis X as the disconnector 4 and the other end of which 7b is capable of coming into contact with the pad 12 called a switching pad, said pad 12 being placed inside of the enclosure E and electrically connected to the fixed contact 9 of the bulb 8.
  • This switching finger 7 is mechanically connected to the bridge 4 so as to be rotated by said bridge, in the direction of opening of the switch I, as soon as the movable contact 5a exceeds the switching pad 12 and, in the closing direction, until the same contact 5a again passes in front of the switching pad 12.
  • the above-mentioned second fixed contact 2a has a greater contact area 2c than the first fixed contact 1, this making it possible to establish the opening and closing sequences of the first and second movable contacts 5a, 6a.
  • the actuation mechanism M of the vacuum interrupter 8 mainly consists of a cam 13 driven by a control mechanism (not shown) mechanically connected to the drive shaft A of the driver bridge 4, said cam 13 actuating two levers 14, 15 acting on a movable assembly N carrying the movable contact 10 of the vacuum interrupter 8.
  • this switch I comprises substantially the same elements as that of the previous embodiment with a few differences. These differences are mainly due to the fact that the switching finger 16, of a length shorter than that of the previous embodiment, is mounted articulated by one of its ends 16a directly on the switching pad 12, while its opposite end 16b , cooperates with the first fixed contact 1a and the conductive bridge 4.
  • the ground connection pad 3 is located between the two fixed contacts 1a, 2a on the side of the switching pad 12, unlike in the first embodiment in which it is located on the side opposite to the switching pad 12, and the two fixed contacts 1a, 2a, have extended contact pads 1c, 2c.
  • the conductive bridge consists of two parallel blades 5, 6, and that the first fixed contact 1a is connected to the cables C while the second fixed contact 2a is connected to the busbar B.
  • This switch I also includes snap-in means or for hooking (not shown) the movable contact Sa on the switching finger 16 allowing the disconnector 4 to drive said finger 16 over a certain rotational stroke of the disconnector 4, and means for automatically returning this finger 16 to a position in which it is again in contact with the first fixed contact 1a.
  • this vacuum interrupter D comprises a bulb 8 consisting mainly of a substantially cylindrical envelope 8a containing two respectively fixed and movable contacts 9, 10, the fixed contact 9 being electrically connected to the switching pad 12 previously mentioned, while the movable contact 10 is slidably mounted through one 8b of the bottoms of the casing 8a while being connected to an actuation mechanism M.
  • a bulb 8 consisting mainly of a substantially cylindrical envelope 8a containing two respectively fixed and movable contacts 9, 10, the fixed contact 9 being electrically connected to the switching pad 12 previously mentioned, while the movable contact 10 is slidably mounted through one 8b of the bottoms of the casing 8a while being connected to an actuation mechanism M.
  • this mechanism M comprises a cam 13 driven in rotation by a shaft 21 coupled to the control shaft A of the driver bridge 4, said cam 13 acting on two levers 14, 15 mounted articulated by one of their ends 14a, 15a, around the same axis Y and whose two opposite ends 14b, 15b form two arms in opposition cooperating with the cam 13.
  • These two levers 14, 15 act on a movable assembly N connected to the contact mob island 10 of the bulb 8.
  • This movable assembly N comprises two pieces of substantially cylindrical shape 22, 23 respectively exterior and interior, provided with a bottom 22a, 23a, sliding one inside the other, said parts 22, 23 having orifices 22b, 23b facing each other intended to allow the passage of the two aforementioned levers 14, 15, said levers 14, 15 being supported on two axes 30, 31 integral with the inner cylinder 23 and sliding through other lights 22c formed in the outer cylinder 22.
  • a set of elastic washers 32 is interposed between the two cylinders 22, 23, having been compressed during mounting between the two bottoms 22a, 23a of said parts 22, 23.
  • This movable assembly N is guided in translation by means of two slots 33a respectively machined in two flanges 33, 34 located on either side of the mechanism M and serving as its support.
  • the actuation mechanism M of the bulb comprises, a pad 40 secured to the movable contact 10 of the bulb 8, said pad 40 being provided on its two upper and lower faces 40a, 40b respectively, of a semi-spherical recess intended to accommodate one of the ends of the two links 41, 42, the two opposite ends 41a, 42a of which are held by two blades flexible contacts 43, 44 mounted in opposition.
  • these parts are preferably made of copper alloy.
  • Blades forming a spring 45, 46 are applied to the contact blades 43, 44 and maintain the pressure of the flexible contacts 43, 44 on the links 41, 42 and on the stud 40.
  • FIGs 10 to 14 we see another embodiment of an actuating mechanism M operating on the same principle as that of Figure 9 but whose structure differs significantly from that of this figure.
  • all of the aforementioned components are housed in a support 70 which also performs the function of guiding the movable contact 10, and the stud 40.
  • the two links 41, 42 each have one end housed in a semi-spherical housing 60a provided in a fixed support 60 and one end housed in a recess 63a, 64a provided in two contact blades 63, 64 belonging to the same part.
  • the links 41, 42 are held elastically between the support 60 and the contact blades 63, 64 by the spring blades 61, 62.
  • the switch I is in the closed position.
  • the two movable contacts 5a, 6a of the disconnector 4 are positioned respectively on the two fixed contacts 1a and 2a and the switching finger 7 is in contact with the switching pad 12.
  • the vacuum interrupter 8 is in position closed, however, the main part of the current from the electric cables C passes through the fixed stud 2, the conductive bridge 4, the fixed stud 11 and the stud 1 connected to the busbar B, without passing through the switch at vacuum D.
  • the conductive bridge 4 having been driven in the direction of opening of the switch I (see arrow), the first movable contact Sa of the bridge 4 is no longer in contact with the first contact fixed 1a, while the second movable contact 6a is still in contact with the second fixed contact 2a thanks to its extended contact range.
  • the switching finger 7 is always in contact with the switching pad 12, so that as soon as the first movable contact 5a has left the first fixed contact 1a, the current flows through the switching finger 7, the pad switching 12, the vacuum interrupter 8, to the fixed pad 1.
  • this movable contact 5a is at a sufficient distance from the fixed contact 1a, so that there is no priming during cutting, the vacuum interrupter 8 opens and interrupts the nominal current.
  • the first movable contact Sa of the bridge 4 is superimposed on the switching finger 7 and drives the latter towards the open position, at the same time as the second movable contact 6a leaves the second fixed contact 2a a in order to obtain the disconnection ( figure 3). In this position the disconnector 4 and the bulb 8 are open.
  • the conductive bridge 4 is driven in the opposite direction to the previous one. In the process of closing, when the second movable contact 6a comes into contact with the fixed contact 2a, the first movable contact 5a, driving the switching finger 7 in its travel, passes in front of the switching pad 12 without touching it, while the switching finger 7 enters contact with this pad 12.
  • the switching finger 7 is detached from the movable contact 5a which continues its course of rotation until the first fixed contact 1a, while the second movable contact 6a slides on the second fixed contact 2a.
  • the vacuum interrupter 8 which has remained open until this moment, closes (FIG. 1).
  • the movable contacts 5a, 6a of the bridge 4 and the finger 7 are simultaneously driven towards the closed earthing disconnector position, illustrated in FIG. 5, from the open position illustrated on Figure 3. In this position, it is the two movable contacts 5a, 6a which carry out the closure, the switching finger 7 playing no role, just like the vacuum interrupter 8 which remains open.
  • the switch I is closed when the conductive bridge 4 connects the first and second fixed contacts 1a, 2a, as illustrated in A, the vacuum interrupter 8 remaining closed, the main current flowing from the first fixed contact 1a connected to the cables C, through the bridge 4 and the second contact 2a connected to the busbar B.
  • the conductive bridge 4 is driven in the direction of the arrow and in its course drives the switching finger 16 which was in position D, to a position E.
  • the vacuum interrupter 8 opens and interrupts the nominal current.
  • the movable contact 5a arrives in position B and the switching finger 16 in position E, the finger 16 is detached from the movable contact 5a and is brought back by means of a return system in contact with the first fixed contact 1a.
  • the movable contact 5a then continues its travel to the open position shown in C to obtain the isolation.
  • the movable contacts 5a, 6a of the bridge 4 rotate in the closing direction up to position A.
  • the movable contact Sa of the bridge 4 passes at the level of the switching finger 16, an attachment of the Sa contact on finger 16 is made, of the ratchet type, allowing a new drive of finger 16 during a new opening maneuver.
  • the vacuum interrupter 8 closes.
  • the closing operation of the earthing switch is carried out when the conductive bridge 4 connects the stud 3 connected to the earth, to the fixed contact 1a connected to the cables having, like the second fixed contact 2a, an extended contact area 1c.
  • FIGS. 1 to 6 have been described as illustrating a switch integrating a vacuum bulb designed to ensure the breaking of the nominal current, these figures can also be considered as describing a circuit breaker in which the vacuum bulb is designed to ensure the breaking of a short-circuit current.
  • the lower axis 31 drives the inner cylinder 23 downward, which via the elastic washers 32, drives the movable contact 10 and the outer cylinder 22.
  • the cam 13 When the movable contact 10 comes into contact with the fixed contact 9 of the vacuum interrupter 8, it cannot move any more. From this position of the contacts, the cam 13 generates compression of the elastic washers 32 to ensure the contact pressure. During this compression of the elastic washers 32, the inner cylinder 23 slides in the outer cylinder 22.
  • the displacement of the stud 40 causes the displacement of the rods 41,42, of the contact blades 43,44, of the spring blades 45,46, and of the movable contact 10 up to the position shown in dotted lines.
  • This assembly constitutes a device for passing through neutral where the extreme positions A and B are stable, and where the closing pressure of the movable contact on the fixed contact is independent of the drive mechanism. This mechanism also allows the passage of current.
  • the form of flexible contacts could be arranged so as to generate an attraction between said contacts, as a function of the intensity which passes through them, this in order to cause a force antagonistic to the force of repulsion of the contacts of the bulb.
  • a medium-voltage electric circuit breaker or switch has therefore been produced, making it possible to eliminate the design constraints linked to the passage of the nominal current and to the closing operation on the breaking device.
  • the invention has therefore made it possible to solve the problem of incorporating the cut-off member into the only opening (cut-off) operation which generates a sequence of particular operation, the realization of this sequence being made complex because of the significant deviations in the travel characteristics of the devices operating in an insulating gas at atmospheric pressure compared to the devices operating in vacuum.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP19950410067 1994-07-20 1995-07-04 Mittelspannung elektrischer Schalter Expired - Lifetime EP0693763B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409198 1994-07-20
FR9409198A FR2722912B1 (fr) 1994-07-20 1994-07-20 Interrupteurs electriques moyenne tension

Publications (2)

Publication Number Publication Date
EP0693763A1 true EP0693763A1 (de) 1996-01-24
EP0693763B1 EP0693763B1 (de) 2000-04-26

Family

ID=9465727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950410067 Expired - Lifetime EP0693763B1 (de) 1994-07-20 1995-07-04 Mittelspannung elektrischer Schalter

Country Status (3)

Country Link
EP (1) EP0693763B1 (de)
DE (1) DE69516461T2 (de)
FR (1) FR2722912B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849968A1 (fr) * 2003-01-14 2004-07-16 Grupo Ormazabal Sa Centre de transformation pour transformateur autoprotege
WO2011147717A1 (de) * 2010-05-25 2011-12-01 Siemens Aktiengesellschaft Lasttrennschalter
WO2011161121A1 (de) * 2010-06-23 2011-12-29 Ipt International Power & Technology Gmbh Hochspannungsschaltvorrichtung
WO2014001029A1 (de) * 2012-06-25 2014-01-03 Siemens Aktiengesellschaft Dreistellungslasttrennschalter für mittelspannungs-schaltanlagen
EP3046129A1 (de) * 2015-01-15 2016-07-20 Schneider Electric Industries SAS Lastschaltsystem mit parallelem strompfad
CN105990068A (zh) * 2015-02-10 2016-10-05 施耐德电器工业公司 分流断路系统
CN104054150B (zh) * 2012-01-24 2017-05-31 西门子公司 用于中压开关设备的开关装置尤其是负载分离开关
CN113826181A (zh) * 2019-03-29 2021-12-21 西门子股份公司 优化的三位开关

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008933B4 (de) * 2006-02-22 2009-06-18 Siemens Ag Elektrisches Schaltgerät
DE102013217834B4 (de) * 2013-09-06 2022-01-20 Siemens Aktiengesellschaft Schaltgerät und Verfahren zum Schalten eines solchen Schaltgerätes
DE102018109750B4 (de) * 2018-04-23 2023-11-23 Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co. Schaltvorrichtung
EP4276871A1 (de) * 2022-05-12 2023-11-15 ABB Schweiz AG Verfahren zum zusammenbauen eines schaltgeräts für elektrische mittelspannungssysteme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126362A (en) * 1965-07-06 1968-09-05 Ass Elect Ind Improvements in and relating to electric circuit breakers
GB1156919A (en) * 1965-12-23 1969-07-02 Ass Elect Ind Improvements in and relating to Circuit Breakers
FR2655766A1 (fr) 1989-12-11 1991-06-14 Merlin Gerin Disjoncteur hybride moyenne tension.
FR2668851A1 (fr) 1990-11-06 1992-05-07 Merlin Gerin Interrupteur rotatif multipolaire.
FR2682807A1 (fr) * 1991-10-17 1993-04-23 Merlin Gerin Disjoncteur electrique a deux cartouches a vide en serie.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126362A (en) * 1965-07-06 1968-09-05 Ass Elect Ind Improvements in and relating to electric circuit breakers
GB1156919A (en) * 1965-12-23 1969-07-02 Ass Elect Ind Improvements in and relating to Circuit Breakers
FR2655766A1 (fr) 1989-12-11 1991-06-14 Merlin Gerin Disjoncteur hybride moyenne tension.
FR2668851A1 (fr) 1990-11-06 1992-05-07 Merlin Gerin Interrupteur rotatif multipolaire.
FR2682807A1 (fr) * 1991-10-17 1993-04-23 Merlin Gerin Disjoncteur electrique a deux cartouches a vide en serie.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2849968A1 (fr) * 2003-01-14 2004-07-16 Grupo Ormazabal Sa Centre de transformation pour transformateur autoprotege
WO2011147717A1 (de) * 2010-05-25 2011-12-01 Siemens Aktiengesellschaft Lasttrennschalter
WO2011161121A1 (de) * 2010-06-23 2011-12-29 Ipt International Power & Technology Gmbh Hochspannungsschaltvorrichtung
CN102947914A (zh) * 2010-06-23 2013-02-27 Ipt国际电力技术有限公司 高压开关装置
CN104054150B (zh) * 2012-01-24 2017-05-31 西门子公司 用于中压开关设备的开关装置尤其是负载分离开关
WO2014001029A1 (de) * 2012-06-25 2014-01-03 Siemens Aktiengesellschaft Dreistellungslasttrennschalter für mittelspannungs-schaltanlagen
CN104335312A (zh) * 2012-06-25 2015-02-04 西门子公司 用于中压开关设备的三工位负荷隔离开关
CN104335312B (zh) * 2012-06-25 2017-05-24 西门子公司 用于中压开关设备的三工位负荷隔离开关
EP3046129A1 (de) * 2015-01-15 2016-07-20 Schneider Electric Industries SAS Lastschaltsystem mit parallelem strompfad
CN105990068A (zh) * 2015-02-10 2016-10-05 施耐德电器工业公司 分流断路系统
CN113826181A (zh) * 2019-03-29 2021-12-21 西门子股份公司 优化的三位开关
CN113826181B (zh) * 2019-03-29 2024-06-07 西门子股份公司 优化的三位开关

Also Published As

Publication number Publication date
FR2722912A1 (fr) 1996-01-26
EP0693763B1 (de) 2000-04-26
FR2722912B1 (fr) 1996-09-13
DE69516461T2 (de) 2000-10-12
DE69516461D1 (de) 2000-05-31

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