EP0794545A1 - Vakuumschalter oder Lastschalter - Google Patents

Vakuumschalter oder Lastschalter Download PDF

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Publication number
EP0794545A1
EP0794545A1 EP97410021A EP97410021A EP0794545A1 EP 0794545 A1 EP0794545 A1 EP 0794545A1 EP 97410021 A EP97410021 A EP 97410021A EP 97410021 A EP97410021 A EP 97410021A EP 0794545 A1 EP0794545 A1 EP 0794545A1
Authority
EP
European Patent Office
Prior art keywords
portions
turns
turn
switch according
cartridge
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
EP97410021A
Other languages
English (en)
French (fr)
Other versions
EP0794545B1 (de
Inventor
Roger Bolongeat
Hans Schellekens
Philippe Picot
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 EP0794545A1 publication Critical patent/EP0794545A1/de
Application granted granted Critical
Publication of EP0794545B1 publication Critical patent/EP0794545B1/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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6641—Contacts; Arc-extinguishing means, e.g. arcing rings making use of a separate coil

Definitions

  • the present invention relates to an electric vacuum switch intended to ensure breaking in an electric circuit in particular at low or medium voltage.
  • a circuit breaker is known as described in patent application FR-2,682,808 by the applicant comprising a vacuum interrupter in which two arcing contacts are housed, one of which is fixed, is secured to one of the bottoms while the other, mobile, is mounted to slide axially inside the cartridge between a closed position and a contact separation position causing the formation of an arc current.
  • This circuit breaker further comprises a coil arranged coaxially outside the cartridge in line with the separation interval of the arcing contacts, this coil being intended to produce an axial magnetic field in the arcing region.
  • One of the drawbacks of this type of circuit breaker is that the coil being in series with the arcing contacts, all of the main current flows through the coil.
  • the present invention solves these problems and proposes a vacuum interrupter or circuit breaker, of particularly simple design, making it possible to further reduce these losses.
  • the subject of the present invention is an electrical switch intended to ensure breaking in an electrical circuit, of the type comprising an elongated cartridge under vacuum with a cylindrical casing closed by two bottoms, in which are housed two arcing contacts intended for be electrically connected respectively to two current supply ranges, one of which, fixed, is integral with one of the bottoms while the other, mobile, is mounted with axial sliding inside the cartridge, and at least one means intended to produce an axial magnetic field in the zone of formation of the arc,
  • this switch being characterized in that the aforesaid means comprises at least two portions of turn mounted in parallel around the contacts, each comprising a first end electrically connected to one of the arcing contacts and a second end electrically connected to the current supply range of said contact, said portions being arranged outside the cartridge, in line with the separation gap between the arcing contacts.
  • the invention also relates to an electric switch intended to ensure breaking in an electrical circuit, of the type comprising an elongated cartridge under vacuum with a cylindrical envelope closed by two bottoms, in which are housed two arcing contacts intended to be electrically connected respectively to two current supply ranges, one of which is fixed, is secured to one of the aforementioned funds while the other, mobile, is mounted to slide axially inside the cartridge, and at least one means intended to produce an axial magnetic field in the arc formation zone,
  • the aforementioned means comprises at least two portions of turn mounted in parallel around the contacts, each comprising a first end electrically connected to the 'one of the arcing contacts and a second end electrically connected to the current supply range of said contact and in that the first and second ends of each turn portion are electrically connected by a bypass means for diverting a portion of the main current through the turn portions, during cutting.
  • each portion of turn forms a fraction of turn of length less than one complete turn.
  • all of the combined turn portions form a complete loop.
  • the turns are two in number.
  • the turns portions as well as the bypass means M are mounted coaxially outside the cartridge.
  • the turns portions as well as the bypass means are mounted coaxially inside the cartridge.
  • the turns portions as well as the bypass means are mounted between the fixed arcing contact and the corresponding current supply range.
  • the turns and the bypass means are an integral part of one or both of the arcing contacts.
  • the turns portions being two in number, the second end of one of the turns portions is superimposed on the first end of the other of the turns portions.
  • the switch comprises a first bell comprising several portions of turn connected electrically by one of their ends to the aforementioned area (or in arcing contact) and by their end opposite to a second conductive bell disposed coaxially with the cartridge and electrically connected to the arcing contact (or respectively to the aforementioned range).
  • the second bell also includes turns portions, the same number of turns portions as the first, electrically connected by one of their ends, respectively to the turns portions of the first bell and by their ends opposite to said contact d arc, the turns portions associated with the first and the second bell being arranged relative to each other so as to cancel the axial components of the currents passing through the portions of turns.
  • the aforementioned bypass means comprises a resistive element and / or an inductive element mounted in parallel with the turns portions.
  • a vacuum interrupter I comprising a vacuum bulb (or cartridge) C constituted mainly by a cylindrical casing 1 closed by two opposite bottoms in which are housed two arcing contacts 4 respectively fixed and movable 5 (not visible in this figure, but visible in Figure 5).
  • the fixed arcing contact 4 is integral with the bottom located at the top of the casing 1 while the movable arcing contact 5 is slidably mounted through the other of the two bottoms.
  • This switch I also comprises a means intended to create an axial magnetic field between the contacts 4, 5 in order to obtain a diffusion of the arc.
  • this means comprises two half-turns 2, 20 symmetrical such as that 2 illustrated in FIG. 2. These two half-turns 2, 20 are mounted outside of the bulb C in line with the separation gap of the arcing contacts 4, 5, so as to form a complete loop.
  • Each turn portion 2, 20 is constituted by a half-turn having two ends 2a, 20a and 2b, 20b extending parallel to the bottoms of the cartridge C.
  • first ends 2a, 20a intended to be electrically connected to the fixed contact 4
  • second end 2b, 20b intended to be electrically connected to the pad 19 (not shown in this figure) for supplying current to the fixed arcing contact 4.
  • the first two ends 2a, 20a, associated respectively with the two turns portions are of complementary shape and are arranged end to end, as are the two seconds ends 2b, 20b.
  • a layer of insulating material 22 with a thickness of approximately 1 mm is interposed between the first 2a, 20a and the second 2b, 20b, ends, said layer 22 extending to the bottom of the turns 2 , 20.
  • the first ends 2a, 20a of the turn portion are electrically connected to the second ends 2b, 20b by a bypass means M mounted in parallel with said portions and constituted in this particular embodiment, by a stud 23 made of stainless steel. This means is intended to divert a sufficient part of the current through the turns 2, 20.
  • bypass means M makes it possible to adjust the current to precise values, which makes it possible to precisely create the magnetic field necessary, thereby minimizing losses.
  • the bulb is equipped with three thirds of a turn, which are once again symmetrical.
  • a single piece is thus used (fig. 8) to make, after mounting several sectors, a complete turn.
  • the two aforementioned two half-turns 2, 20 are formed inside one 4 of the arcing contact elements. It will be noted that in this embodiment, the two arcing contacts 4, 5 may advantageously be equipped with such portions of turns.
  • the bulb C is surrounded by several portions of turns.
  • currents can be created whose axial component is capable of producing undesirable magnetic fields in the radial direction, these fields having the effect of repelling the arc outside the space situated between the arcing contacts.
  • the two ends 2a, 2b or 20a, 20b of each portion of turn 2, 20 are offset axially, and the two second ends 2b, 20b are superimposed respectively on the first two ends 20a and 2a.
  • the switch I comprises a first bell 14 comprising a certain number of portions of turns 18, for example seven.
  • turns portions include an end electrically connected to a current supply range 19 to the fixed contact 4 and an end electrically connected to a second conductive bell 15 mounted inside the first 14 and electrically connected to the arcing contact.
  • fixed 4 this second bell 15 compensating the above-mentioned axial current components.
  • this second bell 15 can advantageously be an integral part of the envelope 1 of the bulb as shown in Figure 5, and be fixed to the first by soldering. It will also be noted that this second bell 15 could also have been placed outside the first.
  • the bypass means M is constituted by a resistive element 6 in the form of a disc interposed between the two aforementioned bells 14, 15.
  • the switch I comprises, as in the previous embodiment, two coaxial bells 14, 16, electrically connected to their lower part, one of which is external 14 has portions of coil 18 electrically connected to the current supply range 19 of the fixed arcing contact 4.
  • the compensation of the axial current components is obtained by the fact that the internal bell 16 also includes portions of coil 17, said portions 17 being located in the extension of the turns portions 18 of the outer bell 14 and electrically connected to the fixed arcing contact 4.
  • the portions of turns belonging to the two bells are arranged relative to each other of so as to bring the current up so that the currents oriented in the axial direction cancel each other out.
  • the ratio between the radial field and the axial field is reduced, from which it follows that the effects of the above-mentioned axial components of current are reduced.
  • the current flowing through the turn can be adjusted and the desired axial magnetic field is obtained exactly.
  • the losses are 34 Watts.
  • the bypass means can be achieved by a simple stud which supports the two portions of the coil and the bulb, only 20% of the current passing through this stud, which further facilitates assembly.
  • the derivative current first passes through the turns 18 of the first bell 14 and then through the second bell 15, 16 before crossing the arcing contacts 4, 5.
  • an inductive shunt could just as well have been used instead of a resistive shunt or a combination of an inductive shunt and a resistive shunt.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP97410021A 1996-03-08 1997-02-24 Vakuumschalter oder Lastschalter Expired - Lifetime EP0794545B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603182A FR2745946B1 (fr) 1996-03-08 1996-03-08 Interrupteur ou disjoncteur electrique sous vide
FR9603182 1996-03-08

Publications (2)

Publication Number Publication Date
EP0794545A1 true EP0794545A1 (de) 1997-09-10
EP0794545B1 EP0794545B1 (de) 2004-04-21

Family

ID=9490161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97410021A Expired - Lifetime EP0794545B1 (de) 1996-03-08 1997-02-24 Vakuumschalter oder Lastschalter

Country Status (7)

Country Link
US (1) US5877466A (de)
EP (1) EP0794545B1 (de)
JP (1) JPH1031943A (de)
CN (1) CN1153236C (de)
DE (1) DE69728709T2 (de)
ES (1) ES2217379T3 (de)
FR (1) FR2745946B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1017985C2 (nl) * 2001-05-03 2002-11-05 Holec Holland Nv Vacuümonderbreker voorzien van een coaxiale spoel voor het opwekken van een axiaal magneetveld nabij de contactorganen van de onderbreker.

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012222328B4 (de) 2012-12-05 2021-06-02 Siemens Aktiengesellschaft Schaltgerät
ES2702906T3 (es) 2013-11-19 2019-03-06 Cleveland Clinic Found Sistema para tratar la apnea obstructiva del sueño utilizando un estimulador neuromuscula
EP3962593B1 (de) 2019-05-02 2023-07-26 XII Medical, Inc. Systeme zur verbesserung von atemstörungen im schlaf
WO2021076188A1 (en) 2019-10-15 2021-04-22 Enhale Medical, Inc. Biased neuromodulation lead and method of using same
US11691010B2 (en) 2021-01-13 2023-07-04 Xii Medical, Inc. Systems and methods for improving sleep disordered breathing

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186030A1 (de) * 1984-12-18 1986-07-02 Siemens Aktiengesellschaft Kontaktanordnung einer Vakuumschaltröhre
EP0208271A2 (de) * 1985-07-12 1987-01-14 Hitachi, Ltd. Vakuumschalter
SU1345271A1 (ru) * 1986-08-18 1987-10-15 Всесоюзный Электротехнический Институт Им.В.И.Ленина Контактна система вакуумной дугогасительной камеры
DE3823297A1 (de) * 1988-07-07 1989-05-11 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfelderregungsvorrichtung
DE3914967A1 (de) * 1989-05-03 1989-10-05 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfeld-erzeugungseinrichtung
DE4013903A1 (de) * 1990-04-25 1990-11-22 Slamecka Ernst Magnetfeld-kontaktanordnung fuer vakuumschalter
DE4014768A1 (de) * 1990-05-03 1990-11-29 Slamecka Ernst Axialmagnetfeld-schaltstueckanordnung in einer vakuumschaltkammer
EP0709867A1 (de) * 1994-10-31 1996-05-01 Schneider Electric Sa Elektrischer Vakuumschalter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411892A (en) * 1943-07-08 1946-12-03 Gerhard W Peters Circuit breaker with magnetic arc extinguishing means
US2439952A (en) * 1944-08-31 1948-04-20 Westinghouse Electric Corp Circuit interrupter
US3321599A (en) * 1966-04-20 1967-05-23 Gen Electric Vacuum-type circuit interrupter with means for reducing arc voltage during high instantaneous currents
ZA74382B (en) * 1973-01-30 1974-11-27 Hazemeijer Bv A vacuum circuit interrupter
NL162238C (nl) * 1976-02-19 1980-04-15 Hazemeijer Bv Vacuumschakelaar met coaxiale magneetspoel.
JPS6012626A (ja) * 1983-06-30 1985-01-23 三菱電機株式会社 しや断器の消弧装置
US4661665A (en) * 1986-07-10 1987-04-28 General Electric Company Vacuum interrupter and method of modifying a vacuum interrupter
DE8904071U1 (de) * 1989-04-03 1990-08-02 AEG Sachsenwerk AG, 93055 Regensburg Vakuumschalter
FR2682808B1 (fr) * 1991-10-17 1997-01-24 Merlin Gerin Disjoncteur hybride a bobine de soufflage axial.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186030A1 (de) * 1984-12-18 1986-07-02 Siemens Aktiengesellschaft Kontaktanordnung einer Vakuumschaltröhre
EP0208271A2 (de) * 1985-07-12 1987-01-14 Hitachi, Ltd. Vakuumschalter
SU1345271A1 (ru) * 1986-08-18 1987-10-15 Всесоюзный Электротехнический Институт Им.В.И.Ленина Контактна система вакуумной дугогасительной камеры
DE3823297A1 (de) * 1988-07-07 1989-05-11 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfelderregungsvorrichtung
DE3914967A1 (de) * 1989-05-03 1989-10-05 Slamecka Ernst Vakuumschalter mit aeusserer axialmagnetfeld-erzeugungseinrichtung
DE4013903A1 (de) * 1990-04-25 1990-11-22 Slamecka Ernst Magnetfeld-kontaktanordnung fuer vakuumschalter
DE4014768A1 (de) * 1990-05-03 1990-11-29 Slamecka Ernst Axialmagnetfeld-schaltstueckanordnung in einer vakuumschaltkammer
EP0709867A1 (de) * 1994-10-31 1996-05-01 Schneider Electric Sa Elektrischer Vakuumschalter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1017985C2 (nl) * 2001-05-03 2002-11-05 Holec Holland Nv Vacuümonderbreker voorzien van een coaxiale spoel voor het opwekken van een axiaal magneetveld nabij de contactorganen van de onderbreker.
WO2003056591A1 (en) * 2001-05-03 2003-07-10 Holec Holland N.V. Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker
US7038157B2 (en) 2001-05-03 2006-05-02 Eaton Electric N.V. Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker

Also Published As

Publication number Publication date
FR2745946A1 (fr) 1997-09-12
EP0794545B1 (de) 2004-04-21
DE69728709T2 (de) 2005-04-07
FR2745946B1 (fr) 1998-04-17
US5877466A (en) 1999-03-02
ES2217379T3 (es) 2004-11-01
DE69728709D1 (de) 2004-05-27
CN1165389A (zh) 1997-11-19
CN1153236C (zh) 2004-06-09
JPH1031943A (ja) 1998-02-03

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