EP1180776B1 - Interrupteur mécanique rapide - Google Patents

Interrupteur mécanique rapide

Info

Publication number
EP1180776B1
EP1180776B1 EP00810722A EP00810722A EP1180776B1 EP 1180776 B1 EP1180776 B1 EP 1180776B1 EP 00810722 A EP00810722 A EP 00810722A EP 00810722 A EP00810722 A EP 00810722A EP 1180776 B1 EP1180776 B1 EP 1180776B1
Authority
EP
European Patent Office
Prior art keywords
contact member
switching point
bridging contact
coil
bridging
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
EP00810722A
Other languages
German (de)
English (en)
Other versions
EP1180776A1 (fr
Inventor
Walter Holaus
Samuele Sartori
Michael Steurer
Klaus Fröhlich
Kurt Kaltenegger
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.)
ABB Schweiz AG
Original Assignee
ABB Schweiz AG
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
Priority to EP00810722A priority Critical patent/EP1180776B1/fr
Application filed by ABB Schweiz AG filed Critical ABB Schweiz AG
Priority to ES00810722T priority patent/ES2273658T3/es
Priority to DE50013565T priority patent/DE50013565D1/de
Priority to AT00810722T priority patent/ATE341824T1/de
Priority to KR1020010047866A priority patent/KR20020014701A/ko
Priority to JP2001245151A priority patent/JP2002117740A/ja
Priority to US09/929,029 priority patent/US6636134B2/en
Priority to CNB011254211A priority patent/CN1211820C/zh
Publication of EP1180776A1 publication Critical patent/EP1180776A1/fr
Application granted granted Critical
Publication of EP1180776B1 publication Critical patent/EP1180776B1/fr
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
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2041—Rotating bridge
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/222—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/222—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion
    • H01H2003/225—Power arrangements internal to the switch for operating the driving mechanism using electrodynamic repulsion with coil contact, i.e. the movable contact itself forms a secondary coil in which the repulsing current is induced by an operating current in a stationary coil

Definitions

  • a switching point of a high or medium voltage switch according to the preamble of claim 1.
  • Such switches are used in the high or medium voltage level as a mechanical power switch or as a mechanical circuit breaker with a arc duration of at most a few 100 microseconds.
  • the switching point of a high or medium voltage switch contains two fixed contact pieces, which are cylindrical and coaxially into one another form an annular gap.
  • a movable, formed in the form of a contact ring bridge switching piece is fitted in the closed state of the switching point in the annular gap.
  • Coils of an electro-dynamic drive are arranged on both sides of the contact ring in order to move the contact ring in the axial direction.
  • the invention as indicated in the claims, has the object of specifying a switching point of the type mentioned, which can be opened and closed quickly and with low energy consumption.
  • the bridge switching piece In the closed state of the switch closes a disk-shaped bridge bridge piece two fixed contact pieces in the rated current direction short.
  • the bridge switching piece is arranged rotatably about its own, perpendicular to the nominal direction extending central axis.
  • the eddy currents necessary for the formation of a force pair of an electrodynamic rotary contact drive are induced in the movable bridge contact.
  • the energy to be applied for the rotational movement of the bridge switching piece is lower than in the case of translationally moving contact pieces of comparable switching points. This reduces the energy required for opening and closing the switch point.
  • the switching point with the rotationally moving contact piece can be optimally utilized dielectrically, since the fixed contact pieces can be made rounder than switch points with translationally moving contact pieces.
  • Fig. 1 shows an embodiment of the inventive switching point of a high or medium voltage switch for a rated current I N in the range of 10 to some 1 '000 A.
  • the fixed contact pieces 1 and 2 form in the closed state of the switching point together with the electrically conductive bridge contact piece 3, the rated current path I N.
  • the bridge contact piece is disc-shaped and fitted between the two fixed contact pieces.
  • the bridge contactor 3 is rotatably mounted about the central axis A normal to the nominal current direction I N.
  • the bridge switching piece 3 is made of a light metal, in particular aluminum.
  • the contact points to the fixed contact pieces 1 and 2 are preferably formed from good electrical contact materials, such as silver.
  • the distance between the fixed contact pieces 1 and 2 is 10 to a few 10 mm.
  • the cross section normal to the rated current direction of the bridge contact piece 3 is determined by the rated current I N and by the current density allowed in the bridge contact block.
  • the length in the rated current direction and thus the distance between the two fixed contact pieces 1 and 2 is determined by the maximum occurring during operation voltage and the existing insulating medium.
  • Possible insulating media are air or SF 6 at atmospheric or elevated pressure.
  • an electrodynamic drive consisting of two coils 5 and 6 is provided.
  • the first coil 5 is provided for opening the switching point, the second coil 6 for closing the switching point.
  • the coils comprise the bridge contactor 3 and include several (for example 6-8) turns.
  • the coil for opening the switching point 5 is guided on one side of the central axis A below and on the other side above the bridge switching piece. These two coil sections 5 1 and 5 2 extending parallel to the center axis A are not mechanically connected to the bridge contact piece 3 and are also electrically insulated from it. In order to ensure optimum drive with the least possible energy, the coil sections 5 1 and 5 2 in the closed state of the switching point as close to the bridge contact piece 3 and in the region of the stationary contact pieces 1 and 2 facing ends of the bridge contact piece 3 are arranged.
  • the coil for closing the switching point 6 is also guided on one side of the central axis A above and on the other side below the Brückenschalt ceremoniess. These two parallel to the central axis A coil sections 6 1 and 6 2 are also not mechanically connected to the bridge contact piece 3 and electrically insulated from this. In order to ensure optimum drive with the least possible energy, the coil sections 6 1 and 6 2 are arranged in the open state of the switching point as close as possible to the bridge contact 3 and also in the region of the ends of the bridge contact 3.
  • the two coils 5 and 6 are formed substantially mirrored with respect to the bridge contact piece and arranged rotatably offset about the central axis A.
  • the coil sections 5 1 and 6 1 and 5 2 and 6 2 essentially limit the rotational range of movement of the bridge contact piece 3.
  • the coils 5 and 6 may be formed so wide that they act practically on the whole bridge contact.
  • the coil 5 may extend, for example, in the width of the fixed piece of scarf 1 to the axis of rotation A.
  • insulating bodies 7 in particular, in each case a fixed contact piece 1 rsp. 2 with the corresponding coil sections on the same side of the bridge switching piece 5 1 and 6 2 rsp. 5 2 and 6 1 firmly connected by means of an insulating body 7.
  • a power electronic control unit 9 For driving the coils 5 and 6, a power electronic control unit 9, as shown in Fig. 5, is provided.
  • the control unit 9 essentially contains a charging device Q, one drive capacitor C O rsp per coil. C S and each a thyristor T O rsp. T S.
  • To improve the drive efficiency can also ever a freewheeling diode D O rsp. D s be inserted in the drive circuit.
  • D O rsp. D s be inserted in the drive circuit.
  • Such circuits can sometimes be found in the aforementioned application EP 99810596.9.
  • the opening operation of the switching point is shown in Fig. 2.
  • the bridge switch 3 is fitted between the fixed contact pieces.
  • the drive capacitor C O is discharged via the coil 5.
  • the resulting drive current I O is typically a half-wave with a few 1000 A peak current at a frequency of a few 1000 Hz.
  • the drive current flows in the lower coil section 5 1 backwards (I O1 ) and in the upper coil section 5 2 forward (I O2 ).
  • I O1 backwards
  • I O2 forward
  • 3 eddy currents are induced in the still flown through by the rated current I N bridge contact piece, which are directed essentially opposite to the drive current.
  • the eddy currents I P1 caused by the backward-flowing drive current in the lower coil section I O1 thus flow forwards, the eddy currents I P2 caused by the forwardly flowing drive current in the lower coil section I O2 to the rear.
  • the resulting force pair F O1 and F O2 sets the bridge switching piece 3 in a clockwise rotational movement.
  • the bridge switching piece 3 dissolves to form two arcs of the fixed contact pieces 1 and 2 and moves rotationally about the central axis A.
  • the bridge contact piece is first braked by a mechanical braking and holding device 4, for example by mechanical friction and then held.
  • a mechanical braking and holding device 4 for example by mechanical friction and then held.
  • the angle of rotation is dictated by the dielectric strength to be achieved and is in the range of 30-90 °, preferably about 60 °.
  • the contact pieces in the bridge contact piece facing area with Slots 8 provided.
  • a fixed contact piece 1 with slots 8 is shown in Fig. 4.
  • the slots 8 are longer than the penetration depth of the magnetic field of the drive current in the material of the fixed contact piece 1.
  • the closing process of the switching point is shown in Fig. 3.
  • the bridge switching piece 3 is held by the holding device 4.
  • the drive capacitor C S is discharged via the coil 6.
  • the resulting drive current I S is typically a half-wave with several 1,000 A peak current at a frequency of a few 1,000 Hz.
  • the drive current flows in the lower coil section 6 2 to the rear (I S2 ) and in the upper coil section 6 1 forward (I S1 ).
  • eddy currents are induced in the bridge contact piece 3, which are directed essentially opposite to the drive current.
  • the resulting force pair F S1 and F S2 sets the bridge contact piece 3 in a counter-clockwise rotational movement.
  • the bridge contact piece 3 releases from the holding device 4 and rotates around the central axis A.
  • the bridge contact piece 3 rotates until it is decelerated by the fixed contact pieces and then held.
  • the switching point is closed again and the rated current I N flows through the bridge contact piece 3.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Vehicle Body Suspensions (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (5)

  1. Point de commutation d'un commutateur à haute ou moyenne tension, comprenant
    - deux éléments de commutation fixes (1, 2),
    - un cavalier de commutation (3) mobile électriquement conducteur qui, lorsque le point de commutation est en position fermée, vient s'adapter entre les éléments de commutation fixes (1, 2) et les court-circuite dans le sens du courant nominal (IN), et
    - un mécanisme d'entraînement destiné à déplacer le cavalier de commutation (3), lequel comprend au moins deux bobines (5, 6) disposées de manière à délimiter au moins partiellement la zone de déplacement du cavalier de contact (3) et une unité de commande (9) électronique de puissance destinée à alimenter les bobines (5, 6),
    - les éléments de contact fixes (1, 2) étant configurés et disposés de manière essentiellement symétrique l'un par rapport à l'autre et par rapport à un axe central (A) du cavalier de contact (3) qui est dans le normal sens du courant nominal (IN), caractérisé en ce que
    - le cavalier de contact (3) est disposé de manière à pouvoir tourner autour de l'axe central (A) pour l'ouverture et la fermeture du point de commutation.
  2. Point de commutation selon la revendication 1, caractérisé en ce que le cavalier de contact (3) est allongé en forme de plaquette dans le sens du courant nominal (IN) et en direction de l'axe central (A).
  3. Point de commutation selon la revendication 1, caractérisé en ce que
    - deux sections de bobine (51, 52) d'une première des deux bobines (5), lesquelles sont isolées électriquement par rapport au cavalier de contact (3) et s'étendent parallèlement à l'axe central (A), lorsque le point de commutation est en position fermée, sont à chaque fois disposées par rapport au cavalier de contact (3)
    - dans la zone des extrémités opposées du cavalier de contact et
    - décalées sur les côtés opposés du cavalier de contact (3) en sens inverse du sens de rotation du cavalier de contact lors de l'ouverture du point de commutation
    et que
    - deux sections de bobine (61, 62) de la deuxième bobine (6), lesquelles sont isolées électriquement par rapport au cavalier de contact (3) et s'étendent parallèlement à l'axe central (A), lorsque le point de commutation est en position ouverte, sont à chaque fois disposées par rapport au cavalier de contact (3)
    - dans la zone des extrémités opposées du cavalier de contact et
    - décalées sur les côtés opposés du cavalier de contact (3) dans le sens de rotation du cavalier de contact lors de l'ouverture du point de commutation.
  4. Point de commutation selon l'une des revendications 1 ou 2, caractérisé en ce qu'un dispositif de maintien (4) destiné à maintenir le cavalier de contact (3) en position ouverte du point de contact est disposé dans la zone de la bobine (6) qui délimite la zone de mouvement du cavalier de contact (3) lors de l'ouverture du point de commutation.
  5. Point de commutation selon l'une des revendications 1 à 3, caractérisé en ce que les éléments de contact fixes (1, 2) présentent chacun au moins une fente (S) qui s'éloigne du cavalier de contact (3) dans le sens du courant nominal.
EP00810722A 2000-08-15 2000-08-15 Interrupteur mécanique rapide Expired - Lifetime EP1180776B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ES00810722T ES2273658T3 (es) 2000-08-15 2000-08-15 Grupo mecanico de conmutacion rapida.
DE50013565T DE50013565D1 (de) 2000-08-15 2000-08-15 Schnelle mechanische Schaltstelle
AT00810722T ATE341824T1 (de) 2000-08-15 2000-08-15 Schnelle mechanische schaltstelle
EP00810722A EP1180776B1 (fr) 2000-08-15 2000-08-15 Interrupteur mécanique rapide
KR1020010047866A KR20020014701A (ko) 2000-08-15 2001-08-09 고속 기계 스위칭 포인트
JP2001245151A JP2002117740A (ja) 2000-08-15 2001-08-13 高速の機械的切換えポイント
US09/929,029 US6636134B2 (en) 2000-08-15 2001-08-15 High-speed mechanical switching point
CNB011254211A CN1211820C (zh) 2000-08-15 2001-08-15 高压或中压开关的断口

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00810722A EP1180776B1 (fr) 2000-08-15 2000-08-15 Interrupteur mécanique rapide

Publications (2)

Publication Number Publication Date
EP1180776A1 EP1180776A1 (fr) 2002-02-20
EP1180776B1 true EP1180776B1 (fr) 2006-10-04

Family

ID=8174858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810722A Expired - Lifetime EP1180776B1 (fr) 2000-08-15 2000-08-15 Interrupteur mécanique rapide

Country Status (8)

Country Link
US (1) US6636134B2 (fr)
EP (1) EP1180776B1 (fr)
JP (1) JP2002117740A (fr)
KR (1) KR20020014701A (fr)
CN (1) CN1211820C (fr)
AT (1) ATE341824T1 (fr)
DE (1) DE50013565D1 (fr)
ES (1) ES2273658T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050185364A1 (en) * 2004-01-05 2005-08-25 Jory Bell Docking station for mobile computing device
US8890019B2 (en) 2011-02-05 2014-11-18 Roger Webster Faulkner Commutating circuit breaker
WO2013007437A1 (fr) 2011-07-09 2013-01-17 Maschinenfabrik Reinhausen Gmbh Elément de commutation et changeur de prises en charge avec un tel élément de commutation
DE202011110140U1 (de) 2011-07-09 2012-12-07 Maschinenfabrik Reinhausen Gmbh Schaltelement und Laststufenschalter mit einem solchen Schaltelement
WO2014048483A1 (fr) * 2012-09-28 2014-04-03 Abb Technology Ag Interrupteur électrique à commande par bobine thomson
US11424093B2 (en) 2018-10-24 2022-08-23 The Florida State University Research Foundation, Inc. Direct current hybrid circuit breaker with reverse biased voltage source
US11646575B2 (en) 2018-10-24 2023-05-09 The Florida State University Research Foundation, Inc. Direct current hybrid circuit breaker with reverse biased voltage source
US11908649B2 (en) * 2021-10-21 2024-02-20 Eaton Intelligent Power Limited Actuator with Thomson coils

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1759933A (en) * 1928-03-02 1930-05-27 American Telephone & Telegraph Contact-making device
FR1168235A (fr) * 1955-12-28 1958-12-05 Siemens Ag Dispositif d'entraînement électrodynamique pour obtenir un mouvement de va-et-vient
US4134090A (en) * 1976-03-22 1979-01-09 Leach Corporation Electromagnetic actuator for a relay
GB8321724D0 (en) * 1983-08-12 1983-09-14 Delta Acc & Domestic Switch Switch mechanism
GB2150352A (en) * 1983-11-25 1985-06-26 Electricity Council Circuit breaker assembly
DD220846B5 (de) * 1984-01-31 1994-05-05 Oppach Schaltelektronik Schaltsystemanordnung fuer elektromagnetische Schaltgeraete
FR2688625B1 (fr) * 1992-03-13 1997-05-09 Merlin Gerin Contact d'un disjoncteur a boitier moule
EP0617449B1 (fr) * 1993-03-25 1997-10-22 Schneider Electric Sa Appareil interrupteur
JPH09321833A (ja) 1996-05-28 1997-12-12 Saitama Nippon Denki Kk 携帯電話機
DE19629867C2 (de) * 1996-07-24 2003-07-24 Moeller Gmbh Strombegrenzender Leistungsschalter
ITMI981161A1 (it) * 1998-05-26 1999-11-26 Aeg Niederspannugstechnik Gmbh Interruttore elettrico munito di complesso modulare di contatti consente differenti dimensioni di moduli unipolari di interruzione
US6396369B1 (en) * 1999-08-27 2002-05-28 General Electric Company Rotary contact assembly for high ampere-rated circuit breakers

Also Published As

Publication number Publication date
US6636134B2 (en) 2003-10-21
CN1211820C (zh) 2005-07-20
JP2002117740A (ja) 2002-04-19
US20020056703A1 (en) 2002-05-16
EP1180776A1 (fr) 2002-02-20
ES2273658T3 (es) 2007-05-16
DE50013565D1 (de) 2006-11-16
ATE341824T1 (de) 2006-10-15
KR20020014701A (ko) 2002-02-25
CN1338764A (zh) 2002-03-06

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