EP0794545B1 - Vakuumschalter oder Lastschalter - Google Patents

Vakuumschalter oder Lastschalter Download PDF

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Publication number
EP0794545B1
EP0794545B1 EP97410021A EP97410021A EP0794545B1 EP 0794545 B1 EP0794545 B1 EP 0794545B1 EP 97410021 A EP97410021 A EP 97410021A EP 97410021 A EP97410021 A EP 97410021A EP 0794545 B1 EP0794545 B1 EP 0794545B1
Authority
EP
European Patent Office
Prior art keywords
turn
portions
switch according
electrically connected
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.)
Expired - Lifetime
Application number
EP97410021A
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English (en)
French (fr)
Other versions
EP0794545A1 (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 Industries SAS
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Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
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 the break in an electrical circuit especially in low or medium voltage.
  • circuit breaker as described in patent application FR-2,682,808 of the applicant comprising a vacuum interrupter in which are housed two arcing contacts, 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 envelope closed by two bottoms, in which two arcing contacts are intended intended for be electrically connected respectively to two power supply areas, one of which, fixed, is secured to one of the bottoms 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 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 portion of turn forming a fraction of a coil of length less than a full turn and each comprising a first end electrically connected to one of the arcing contacts and a second extrem ity electrically connected to the current supply range of said contact, said portions being arranged outside the cartridge, in line with the separation interval of the arcing contacts.
  • the invention also relates to an electrical 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 integral with one of the abovementioned bottoms 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,
  • this switch being characterized in that the aforementioned means comprises at least two portions of turn mounted in parallel around the contacts, each portion of turn forming a fraction of turn of length less than a full turn and 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 and in that the first and second ends of each portion of turn are electrically connected by means of bypass intended to divert part of the main current through the portions of turn, during the cut.
  • all of the combined turn portions form
  • the turns portions as well as the bypass means are mounted coaxially inside the cartridge.
  • the turns and the bypass means are mounted between the fixed arcing contact and the corresponding current supply range.
  • the turns portions as well as the bypass means are 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 is superimposed on the first end of the other of the portions of turn.
  • the switch comprises a first bell comprising several portions of whorl electrically connected by one of their ends to the aforementioned range (or in arcing contact) and by their end opposite to a second bell conductor arranged coaxially to the cartridge and electrically connected to the arcing contact (or respectively to the aforementioned range).
  • the second bell also includes portions of a coil, the same number of turn portions than the first, electrically connected by one of their ends, respectively to the turns of the first bell and by their ends opposite to said arcing contact, the turns of the coil associated with the first and the second bell being arranged in relation to each other so as to cancel the components axial 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 switch I comprising a bulb (or cartridge) to vacuum C mainly constituted by a cylindrical envelope 1 closed by two bottoms opposite in which are housed two arcing contacts respectively fixed 4 and movable 5 (not visible in this figure, but visible in Figure 5).
  • Fixed arcing contact 4 is secured to the bottom located at the top of the casing 1 while the arcing contact mobile 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 bulb C in line with the contact separation interval arc 4, 5, so as to form a complete loop.
  • Each portion of coil 2, 20 is constituted by a half-turn having two ends 2a, 20a and 2b, 20b extending parallel to the bottoms of cartridge C.
  • first ends 2a, 20a intended to be connected electrically at fixed contact 4
  • second end 2b, 20b intended to be electrically connected to the area 19 (not shown in this figure) for supplying the current at the fixed arcing contact 4.
  • the first two ends 2a, 20a associated respectively with the two portions of turns are of complementary shape and are arranged end to end, just like the two second ends 2b, 20b.
  • a layer of insulating material 22 with a thickness of about 1mm is interposed between the first 2a, 20a and the second 2b, 20b, ends, said layer 22 extending to the bottom of the portions of coil 2, 20.
  • the first ends 2a, 20a of portion of coil are connected electrically at 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 derive a part sufficient current through the coil portions 2, 20.
  • bypass means M makes it possible to adjust the current to precise values, which makes it possible to precisely create the necessary magnetic field 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 of the 4 arc contact elements.
  • the two contacts arc 4, 5 may advantageously be equipped with such portions of turns.
  • the bulb C is surrounded by several portions of turns. he as a result, currents can be created whose axial component is capable of produce unwanted magnetic fields in the radial direction, these fields having to repel the arc outside the space between the arcing contacts.
  • the two ends 2a, 2b or 20a, 20b of each portion of coil 2, 20 are axially offset, and the two second ends 2b, 20b are superimposed respectively at the first two ends 20a and 2a.
  • the switch I comprises a first bell 14 comprising a number of portions of turns 18, for example seven.
  • These coil portions include an end electrically connected to a pad supplying current 19 to fixed contact 4 and one end electrically connected to a second conductive bell 15 mounted inside the first 14 and connected electrically in contact with a fixed arc 4, this second bell 15 realizing the compensation of 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 brazing. Note also 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 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 the outer 14 of which has connected turns 18 electrically at 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 inner bell 16 also includes portions of coil 17, said portions 17 being located in the extension of the turns 18 of the bell external 14 and electrically connected to the fixed arcing contact 4.
  • the portions of turns belonging to the two bells are arranged in relation to each other of so as to bring the current up so that the currents oriented in the direction axial cancel each other out.
  • the ratio between the radial field and the axial field is reduced, whence it follows that the effects of the above-mentioned axial current components are reduced.
  • bypass means can be achieved by a simple stud that supports the two turns of the coil and the bulb, only 20% of the current passing through this stud, which further facilitates mounting.
  • the derivative current first passes to 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 easily 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)

Claims (12)

  1. Elektrischer Schalter, der dazu dient, die Abschaltung in einem Stromkreis zu gewährleisten, und der gattungsgemäß eine längliche Vakuumröhre (C) mit einem durch zwei Böden verschlossenen zylindrischen Gehäuse umfaßt, in dem zwei Lichtbogenkontakte (4, 5) angeordnet sind, die dazu dienen, mit je einem Stromzuführungsanschluß elektrisch verbunden zu werden, und von denen einer als feststehender Kontakt (4) ausgeführt sowie an einem der Böden befestigt ist, während der andere als beweglicher Kontakt (5) ausgeführt und in der Röhre (C) axial verschiebbar gelagert ist, sowie mindestens ein Mittel (2, 20) zur Erzeugung eines axialen Magnetfelds in der Lichtbogenzone umfaßt, welches Mittel mindestens zwei parallel angeordnete, um die Kontakte (4, 5) geführte Windungssegmente (2, 20) umfaßt, dadurch gekennzeichnet, daß jedes Windungssegment eine Teilwindung bildet, die kürzer ist als eine vollständige Windungsschleife und je ein, mit einem (4) der Lichtbogenkontakte (4, 5) elektrisch verbundenes erstes Ende (2a, 20a) sowie ein mit dem Stromzuführungsanschluß (19) des genannten Kontakts (4) elektrisch verbundenes zweites Ende (2b, 20b) aufweist und die genannten Windungssegmente (2, 20) außerhalb der Röhre C, in Höhe der Trennstrecke der Lichtbogenkontakte (4, 5) angeordnet sind.
  2. Elektrischer Schalter nach Anspruch 1, dadurch gekennzeichnet, daß das erste (2a,20a) und das zweite Ende (2b, 20b) jedes Windungssegments (2, 20) über ein Nebenschlußmittel M elektrisch miteinander verbunden sind, das dazu dient, während der Abschaltung einen Teil des Hauptstroms über die Windungssegmente (2, 20) zu leiten.
  3. Elektrischer Schalter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Anordnung der miteinander verbundenen Windungssegmente eine vollständige Windungsschleife bildet.
  4. Elektrischer Schalter nach irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Anzahl der Windungssegmente (2, 20) zwei beträgt.
  5. Elektrischer Schalter nach irgendeinem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Windungssegmente (2, 20) sowie das Nebenschlußmittel M außerhalb der Röhre C koaxial zueinander montiert sind.
  6. Elektrischer Schalter nach irgendeinem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Windungssegmente (2, 20) sowie das Nebenschlußmittel M innerhalb der Röhre C koaxial zueinander montiert sind.
  7. Elektrischer Schalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Windungssegmente (2, 20) sowie das Nebenschlußmittel M zwischen dem feststehenden Lichtbogenkontakt (4) und dem zugehörigen Stromzuführungsanschluß (19) angeordnet sind.
  8. Elektrischer Schalter nach irgendeinem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Windungssegmente (2, 20) sowie das Nebenschlußmittel M als Teil eines der beiden oder beider Lichtbogenkontakte (4, 5) ausgebildet sind.
  9. Elektrischer Schalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß bei der Anordnung mit zwei Windungssegmenten das zweite Ende (2b, 20b) jedes Windungssegments (2, 20) jeweils über dem ersten Ende (2a, 20a) des anderen Windungssegments angeordnet ist.
  10. Elektrischer Schalter nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er eine erste Glocke (14) mit mehreren Windungssegmenten umfaßt, die über eines ihrer Enden mit dem genannten Anschluß (19) (bzw. dem Lichtbogenkontakt 4) und über ihre gegenüberliegenden Enden mit einer zweiten leitenden Glocke (15, 16) elektrisch verbunden sind, welche koaxial zur Röhre angeordnet und mit dem Lichtbogenkontakt (4) (bzw. dem genannten Stromzuführungsanschluß (19)) elektrisch verbunden ist.
  11. Elektrischer Schalter nach Anspruch 10, dadurch gekennzeichnet, daß die zweite Glocke (16) die gleiche Anzahl von Windungssegmenten (17) wie die erste Glocke umfaßt, welche Segmente über eines ihrer Enden mit den Windungssegmenten (18) der ersten Glocke (14) und über ihre gegenüberliegenden Enden mit dem genannten Lichtbogenkontakt (4) elektrisch verbunden sind, wobei die der ersten (14) und der zweiten Glocke (16) zugeordneten Windungssegmente so zueinander angeordnet sind, daß sie die Axialanteile der über die Windungssegmente fließenden Ströme aufheben.
  12. Elektrischer Schalter nach irgendeinem der Ansprüche 2 bis 11, dadurch gekennzeichnet, daß das genannte Nebenschlußmittel ein ohmsches Widerstandselement und/oder ein induktives Widerstandselement umfaßt, das jeweils parallel zu den Windungssegmenten (2, 20) geschaltet ist.
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
FR9603182 1996-03-08
FR9603182A FR2745946B1 (fr) 1996-03-08 1996-03-08 Interrupteur ou disjoncteur electrique sous vide

Publications (2)

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

Families Citing this family (6)

* 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.
DE102012222328B4 (de) * 2012-12-05 2021-06-02 Siemens Aktiengesellschaft Schaltgerät
US9757560B2 (en) 2013-11-19 2017-09-12 The Cleveland Clinic Foundation System and method for treating obstructive sleep apnea
EP4272644A3 (de) 2019-05-02 2024-01-24 XII Medical, Inc. Implantierbarer stimulationsleistungsempfänger und systeme
EP4045134A1 (de) 2019-10-15 2022-08-24 XII Medical, Inc. Vorgespannte neuromodulationsleitung und verfahren zu ihrer verwendung
US11691010B2 (en) 2021-01-13 2023-07-04 Xii Medical, Inc. Systems and methods for improving sleep disordered breathing

Family Cites Families (17)

* 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
US4717797A (en) * 1984-12-18 1988-01-05 Siemens Aktiengesellschaft Contact arrangement for a vacuum switching tube
JPH0731966B2 (ja) * 1985-07-12 1995-04-10 株式会社日立製作所 真空しや断器
US4661665A (en) * 1986-07-10 1987-04-28 General Electric Company Vacuum interrupter and method of modifying a vacuum interrupter
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
DE8904071U1 (de) * 1989-04-03 1990-08-02 Sachsenwerk Ag, 8400 Regensburg, De
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
FR2682808B1 (fr) * 1991-10-17 1997-01-24 Merlin Gerin Disjoncteur hybride a bobine de soufflage axial.
FR2726396B1 (fr) * 1994-10-31 1996-12-13 Schneider Electric Sa Interrupteur electrique sous vide

Also Published As

Publication number Publication date
FR2745946A1 (fr) 1997-09-12
DE69728709D1 (de) 2004-05-27
ES2217379T3 (es) 2004-11-01
CN1153236C (zh) 2004-06-09
JPH1031943A (ja) 1998-02-03
EP0794545A1 (de) 1997-09-10
FR2745946B1 (fr) 1998-04-17
DE69728709T2 (de) 2005-04-07
CN1165389A (zh) 1997-11-19
US5877466A (en) 1999-03-02

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