EP1180776A1 - Interrupteur mécanique rapide - Google Patents

Interrupteur mécanique rapide Download PDF

Info

Publication number
EP1180776A1
EP1180776A1 EP00810722A EP00810722A EP1180776A1 EP 1180776 A1 EP1180776 A1 EP 1180776A1 EP 00810722 A EP00810722 A EP 00810722A EP 00810722 A EP00810722 A EP 00810722A EP 1180776 A1 EP1180776 A1 EP 1180776A1
Authority
EP
European Patent Office
Prior art keywords
bridge contact
switching point
contact
bridge
central axis
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
EP00810722A
Other languages
German (de)
English (en)
Other versions
EP1180776B1 (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
ABB Hochspannungstechnik 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 ES00810722T priority Critical patent/ES2273658T3/es
Application filed by ABB Schweiz AG, ABB Hochspannungstechnik AG filed Critical ABB Schweiz AG
Priority to DE50013565T priority patent/DE50013565D1/de
Priority to AT00810722T priority patent/ATE341824T1/de
Priority to EP00810722A priority patent/EP1180776B1/fr
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

  • the invention is based on a switching point of a high or Medium-voltage switch according to the preamble of claim 1.
  • Such switches are in the high or medium voltage level as mechanical On switch or as mechanical off switch with an arc duration of used at most a few 100 ⁇ s.
  • the switching point of a high or medium voltage switch contains two fixed ones Switch pieces, which are cylindrical and coaxially one inside the other form an annular gap.
  • a movable, designed in the form of a contact ring Bridge switching piece is in the closed state of the switching point in the ring-shaped Gap fitted.
  • On both sides of the contact ring are coils of an electrodynamic Drive arranged to move the contact ring in the axial direction.
  • the object of the invention is as set out in the claims based on specifying a switching point of the type mentioned, which quickly and can be opened and closed with little energy.
  • a disc-shaped one closes Bridge contact piece two fixed contact pieces short in nominal current direction.
  • the Bridge contact is around its own, perpendicular to the nominal current direction Center axis rotatably arranged.
  • the one to form a pair of forces electrodynamic, rotary contact drive necessary eddy currents induced in the movable bridge contact.
  • the energy to be applied for the rotary movement of the bridge contact is less than with translationally moving contact pieces of comparable switching points. This reduces the energy required to open and close the Switching.
  • the switching point with the rotating moving contact piece can be dielectric make optimal use of it, since the fixed contact pieces are made rounder can be used as switching points with translationally moved contact pieces.
  • FIG. 1 shows an embodiment of the switching point according to the invention of a high or medium voltage switch for a nominal current I N in the range from 10 to a few 1,000 A.
  • the fixed contact pieces 1 and 2 together with the electrically conductive bridge contact piece 3 form the nominal current path I N.
  • the bridge contact is disc-shaped and fitted between the two fixed contact pieces.
  • the bridge contact piece 3 is rotatably mounted about the central axis A normal to the nominal current direction I N.
  • the bridge contact 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, for example silver.
  • the distance between the fixed contact pieces 1 and 2 is 10 to a few 10 mm.
  • the cross section normal to the nominal current direction of the bridge contact 3 is determined by the nominal current I N and by the current density permitted in the bridge contact.
  • the length in the nominal current direction and thus the distance between the two fixed contact pieces 1 and 2 is predetermined by the maximum voltage occurring during operation and the insulation medium present.
  • Possible insulating media are air or SF 6 at atmospheric or elevated pressure.
  • the first coil 5 is for opening the Switching point
  • the second coil 6 is provided for closing the switching point.
  • the Coils include the bridge contact 3 and contain several (e.g. 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 contact. These two coil sections 5 1 and 5 2 running parallel to the central axis A are not mechanically connected to the bridge contact 3 and are also electrically insulated from the latter. In order to ensure optimal drive with as little energy as possible, the coil sections 5 1 and 5 2 are arranged as close as possible to the bridge contact 3 and in the region of the ends of the bridge contact 3 facing the fixed contact 1 and 2 when the switching point is closed.
  • 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 bridge contact.
  • These two coil sections 6 1 and 6 2 running parallel to the central axis A are likewise not mechanically connected to the bridge contact 3 and are electrically insulated from it.
  • the coil sections 6 1 and 6 2 are arranged as close as possible to the bridge contact 3 and also in the region of the ends of the bridge contact 3 in the open state of the switching point.
  • the two coils 5 and 6 are essentially mirrored with respect to the bridge contact and are arranged in a rotationally offset manner about the central axis A.
  • the coil sections 5 1 and 6 1 and 5 2 and 6 2 essentially limit the rotational movement range of the bridge contact piece 3.
  • the coils 5 and 6 can be designed so wide that they act practically on the entire bridge contact piece.
  • the coil 5 can extend, for example, in width from the fixed formwork piece 1 to the axis of rotation A.
  • insulation bodies 7 in particular a fixed contact piece 1 rsp. 2 with the corresponding coil sections on the same side of the bridge contact 5 1 and 6 2 rsp. 5 2 and 6 1 firmly connected by means of an insulation body 7.
  • a power electronic control unit 9, as shown in FIG. 5, is provided for controlling the coils 5 and 6.
  • the control unit 9 essentially contains a charging device Q, a drive capacitor C O rsp per coil. C S and a thyristor T O rsp. T S. To improve the drive efficiency, a free-wheeling diode D O rsp. D S be inserted into the drive circuit.
  • a free-wheeling diode D O rsp. D S be inserted into the drive circuit.
  • Such circuits can sometimes be found in the mentioned application EP 99810596.9.
  • the opening process of the switching point is shown in Fig. 2.
  • the bridge contact piece 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 some 1,000 A current peak at a frequency of some 1000 Hz.
  • Fig. 2 shows the driving current flows in the lower coil portion 5 1 backwards (I O1) and in the upper coil section 5 2 forward (I O2 ). In this case, eddy currents are induced in the bridge contact piece through which the nominal current I N is still flowing, and are essentially directed in the opposite direction to the drive current.
  • the eddy currents I P1 caused by the drive current flowing backwards in the lower coil section I O1 thus flow to the front, the eddy currents I P2 caused by the drive current flowing in the lower coil section I O2 to the rear.
  • the resulting pair of forces F O1 and F O2 sets the bridge contact piece 3 in a clockwise rotational movement.
  • the bridge contact piece 3 detaches from the fixed contact pieces 1 and 2 with the formation of two arcs and moves rotationally around 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.
  • the switching point has thus reached the open state.
  • the angle of rotation is predetermined by the dielectric strength to be achieved and is in the range of 30-90 °, preferably approximately 60 °.
  • the closing process of the switching point is shown in Fig. 3.
  • the bridge contact 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 a few 1,000 A current peak at a frequency of a few 1,000 Hz.
  • the drive current flows to the rear in the lower coil section 6 2 (I S2 ) and in the upper coil section 6 1 forward (I S1 ). Eddy currents are again induced in the bridge contact 3, which are essentially directed in the opposite direction to the drive current.
  • the eddy currents I T2 caused by the backward flowing drive current in the lower coil section I S2 thus flow forward, the eddy currents I T1 caused by the forward flowing drive current in the lower coil section I S1 .
  • the resulting pair of forces F S1 and F S2 sets the bridge contact 3 in a counterclockwise rotary movement.
  • the bridge contact 3 detaches from the holding device 4 and rotates about the central axis A.
  • the bridge contact 3 rotates until it is braked by the fixed contact pieces and then held.
  • the switching point is closed again and the nominal current I N flows through the bridge contact 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)
EP00810722A 2000-08-15 2000-08-15 Interrupteur mécanique rapide Expired - Lifetime EP1180776B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
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
ES00810722T ES2273658T3 (es) 2000-08-15 2000-08-15 Grupo mecanico de conmutacion rapida.
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 true EP1180776A1 (fr) 2002-02-20
EP1180776B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011110140U1 (de) 2011-07-09 2012-12-07 Maschinenfabrik Reinhausen Gmbh Schaltelement und Laststufenschalter mit einem solchen Schaltelement
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
WO2023066526A1 (fr) * 2021-10-21 2023-04-27 Eaton Intelligent Power Limited Actionneur à bobines thomson

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005067604A2 (fr) * 2004-01-05 2005-07-28 Oqo Incorporated Station d'accueil pour dispositif informatique mobile
US8890019B2 (en) 2011-02-05 2014-11-18 Roger Webster Faulkner Commutating circuit breaker
WO2014048483A1 (fr) * 2012-09-28 2014-04-03 Abb Technology Ag Interrupteur électrique à commande par bobine thomson
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
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168235A (fr) * 1955-12-28 1958-12-05 Siemens Ag Dispositif d'entraînement électrodynamique pour obtenir un mouvement de va-et-vient
EP0147036A1 (fr) * 1983-11-25 1985-07-03 The Electricity Council Arrangement pour disjoncteur
US5313180A (en) * 1992-03-13 1994-05-17 Merlin Gerin Molded case circuit breaker contact
DE19629867A1 (de) * 1996-07-24 1998-02-05 Kloeckner Moeller Gmbh Strombegrenzender Leistungsschalter

Family Cites Families (8)

* 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
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
DD220846B5 (de) * 1984-01-31 1994-05-05 Oppach Schaltelektronik Schaltsystemanordnung fuer elektromagnetische Schaltgeraete
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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1168235A (fr) * 1955-12-28 1958-12-05 Siemens Ag Dispositif d'entraînement électrodynamique pour obtenir un mouvement de va-et-vient
EP0147036A1 (fr) * 1983-11-25 1985-07-03 The Electricity Council Arrangement pour disjoncteur
US5313180A (en) * 1992-03-13 1994-05-17 Merlin Gerin Molded case circuit breaker contact
DE19629867A1 (de) * 1996-07-24 1998-02-05 Kloeckner Moeller Gmbh Strombegrenzender Leistungsschalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011110140U1 (de) 2011-07-09 2012-12-07 Maschinenfabrik Reinhausen Gmbh Schaltelement und Laststufenschalter mit einem solchen Schaltelement
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
WO2023066526A1 (fr) * 2021-10-21 2023-04-27 Eaton Intelligent Power Limited Actionneur à bobines thomson
US11908649B2 (en) 2021-10-21 2024-02-20 Eaton Intelligent Power Limited Actuator with Thomson coils

Also Published As

Publication number Publication date
CN1338764A (zh) 2002-03-06
JP2002117740A (ja) 2002-04-19
KR20020014701A (ko) 2002-02-25
ATE341824T1 (de) 2006-10-15
CN1211820C (zh) 2005-07-20
US6636134B2 (en) 2003-10-21
EP1180776B1 (fr) 2006-10-04
US20020056703A1 (en) 2002-05-16
DE50013565D1 (de) 2006-11-16
ES2273658T3 (es) 2007-05-16

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