EP0663675B1 - Interrupteur multipolaire pour en- ou déclenchementéchelonné - Google Patents

Interrupteur multipolaire pour en- ou déclenchementéchelonné Download PDF

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Publication number
EP0663675B1
EP0663675B1 EP94100349A EP94100349A EP0663675B1 EP 0663675 B1 EP0663675 B1 EP 0663675B1 EP 94100349 A EP94100349 A EP 94100349A EP 94100349 A EP94100349 A EP 94100349A EP 0663675 B1 EP0663675 B1 EP 0663675B1
Authority
EP
European Patent Office
Prior art keywords
drive
switch
levers
interrupter
lever
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
EP94100349A
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German (de)
English (en)
Other versions
EP0663675A1 (fr
Inventor
Guido Hux
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.)
General Electric Switzerland GmbH
Original Assignee
GEC Alsthom T&D 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
Application filed by GEC Alsthom T&D AG filed Critical GEC Alsthom T&D AG
Priority to EP94100349A priority Critical patent/EP0663675B1/fr
Priority to AT94100349T priority patent/ATE146623T1/de
Priority to DE59401336T priority patent/DE59401336D1/de
Priority to US08/352,115 priority patent/US5510590A/en
Priority to JP7019652A priority patent/JPH07220584A/ja
Publication of EP0663675A1 publication Critical patent/EP0663675A1/fr
Application granted granted Critical
Publication of EP0663675B1 publication Critical patent/EP0663675B1/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • the present invention relates to a multi-pole switch for medium and high voltage according to the preamble of claim 1.
  • switches are switched on and / or off in synchronism with the mains voltage or with the mains current.
  • An optimal reduction of the transients results if, in the case of multi-pole switching, depending on the load to be switched, either all the poles are switched individually at different times or at least one pole is switched in a staggered manner with respect to the other poles.
  • the transient currents are reduced the most if the contact is made in the individual poles at the time when the applied voltage crosses zero.
  • the three poles of the switch are preferably closed at intervals of one sixth period, ie in a 50 Hz network at a distance of 3 1/3 ms. If, on the other hand, one of the star points is not grounded or only grounded via a high impedance, two poles are preferably closed first at the same time and with a quarter-period delay, ie in a 50 Hz network after 5 ms, the third pole. In analog In this way, optimal conditions for the suppression of transients when switching on transformers and inductors can be achieved if the phase voltage is switched on at the moment of the maximum value. Accordingly, overvoltages can also be reduced when switching off by staggered switching of poles.
  • each pole of a switch is driven by its own drive
  • the time staggering of the individual poles can be implemented in a simple manner using an electronic control device, for example a time relay. If, however, the individual poles of a switch are driven by a drive common to all poles, the staggering of the poles must be implemented by designing the mechanical transmission system for transmitting the switching movement from the drive to the moving switching contact pieces of the individual poles.
  • a switch of this type is disclosed in DE-A-38 10 453.
  • Each pole has an interrupter unit, the moving switching contact piece of which is articulated via an insulating rod to a tab-like connecting element which is connected at the other end to a double-arm angle lever which can be pivoted about an axis.
  • the double-arm angle levers are articulated on an actuating rod which is common to all poles and can be moved back and forth by means of a drive.
  • the staggering of the individual interrupter units is achieved in this known switch in that the angle of the toggle joint between the respective connecting link and the arm of the double-arm angle lever connected to it in an articulated manner is stretched differently for the various poles. This can stretch differently can be achieved by various measures, such as different lengths of the connecting links and differently angled double-arm angle levers.
  • the switch has a single continuous drive shaft which can be rotated back and forth by means of the drive.
  • Each pole is assigned a lever, which is arranged on this drive shaft in order to generate the staggering in a different angle of rotation.
  • the levers and the levers with the moving contact pieces must be used connecting insulating rods of different lengths are formed.
  • the breaker units of the switch also differ from one another here.
  • interrupter units In the case of a gas or liquid-insulated switch in which the drive shaft is inserted tightly into the poles, however, this difference from the outside of the interrupter units can only be recognized by appropriate designation or measurement. Here too there is a risk that interrupter units will be mixed up, in particular because four different switch variants, i.e. for 50 and 60 Hz, as well as staggered switching of all three poles or time-delayed switching of one pole compared to the two synchronously switching other poles, are implemented , up to 10 variants of different interrupter units are required. In addition, the construction with a continuous drive shaft is unsuitable for larger switches, since such drive shafts are not sufficiently torsionally rigid and give rise to vibrations.
  • All interrupter units of a switch consist of identical parts, only the drive levers may have to be designed differently, and even the drive levers of at least two poles can be identical, except that they have to point in different directions when the switch is switched on and / or off, which is particularly easy, for example, by using toothed shafts.
  • the transmission linkages of all interrupter units connecting the drive shafts to the moving switching contact pieces are identical. The risk of confusion that exists with switches with differently designed interrupter units has been eliminated.
  • the drive levers are articulated to one another via coupling.
  • the lever arms of all drive levers are preferably the same. If the switch according to the invention also has the features of claim 3, the same switch-on position, the same switch-off position and the same stroke of the switch contact pieces are achieved in a simple manner in all interrupter units with lever arms of the same length.
  • a particularly preferred embodiment of the switch according to the invention is specified in claim 4.
  • all parts of all interrupter units, including the position of the drive levers with respect to the shafts, can be identical. If all interrupter units are staggered, the couplers can also have the same length.
  • FIG. 1 schematically shows the three interrupter units 10, 12, 14 of a three-pole medium or high voltage switch.
  • the interrupter units 10, 12, 14 each have a fixed switch contact piece 16 and a switch contact piece 18 which is moved in the direction of the arrow 17 and switched off in the opposite direction. This interacts with a sliding contact piece 20, which is electrically conductively connected to a first connecting flange 22 in a known manner.
  • the fixed switching contact pieces 16 are also each electrically connected to a second connection flange 22 '.
  • the switching contact pieces 16, 18 are each arranged in the interior of a switching chamber insulator 24 which is supported on a metal mechanism housing 28 via a supporting insulator 26.
  • a drive shaft 30 is inserted, on the inside of the mechanism housing 28, a transmission lever 32 is non-rotatably, which is articulated via a tab-like connecting link 34 to an insulating rod 36, which is connected at the other end to the moving switching contact piece 18.
  • the insulating rod 36 is guided displaceably in the direction of movement 17 of the moving switching contact piece 18.
  • the transmission lever 32, the connecting member 34 and the isolating rod 36 form a transmission linkage 38 in each interrupter unit 10, 12, 14. All interrupter units 10, 12, 14, including the transmission linkage 38, are designed identically.
  • a drive lever 40 is seated on each drive shaft 30, the distance between which forms a lever arm 40 'between the axis of the drive shaft 30 and an articulation point 42.
  • a drive coupling 48 also acts, which is connected at the other end to a schematically indicated drive 50. Couplings 44, 46 and drive coupling 48 form a drive linkage 51.
  • the transmission linkage 38, the drive lever 40 and the first and second couplings 44, 46 are shown with solid lines in the ON position I and with dashed lines in the OFF position 0.
  • all drive shafts 30 assume the same rotational position in switch-on position I.
  • the drive levers 40 of the interrupter units 10 and 14 are placed in the same direction on the associated drive shafts 30, whereas the drive lever 40 of the interrupter unit 12 has a different rotational position with respect to its drive shaft 30.
  • angles ⁇ 1 and ⁇ 3 between the vertical 52 and the lever arms 40 'of the interrupter units 10 and 12 in the switch-off position 0 of the switch are equal to the negative angle ⁇ 2 between a vertical 52 and the lever arm 40' of the interrupter unit 12 when the switch is switched on, where the angles ⁇ 1 and ⁇ 3 are on the same with respect to the associated perpendicular 52, but the angle ⁇ 2 is on the other side.
  • the interrupter units 10, 12, 14 are of exactly the same design as in the switch shown in FIG. 1.
  • the same reference numerals are used for the same parts.
  • FIG. 1 On the drive shaft 30 of each interrupter unit 10, 12, 14, a drive double lever 56 with V-shaped mutually arranged lever arms 58, 58 'sits in a rotationally fixed manner. These are in the switched-on position I of the switch, as shown with solid lines, rectified to one another and arranged in the same rotational position with respect to the drive shafts 30. The same applies, as shown with dashed lines, in the off position 0 of the switch.
  • the lever arm 58 of the drive double lever 56 of the middle interrupter unit 10 is connected via a first coupling 44 to the lever arm 58 ′ of the drive double lever 56 of the interrupter unit 12, and the lever arm 58 ′ assigned to the middle interrupter unit 10 via a second coupling 46 to the lever arm 58 of the drive double lever 56 of the interrupter unit 14 connected.
  • the double drive levers 56 of the two outer interrupter units 12, 14 could be replaced by single-armed drive levers which correspond to the lever arms 58 'and 58, as is shown schematically in FIG. 3.
  • the interrupter units 10, 12, 14 are fastened to a frame 60 by means of their mechanism housing 28, on which the drive 50 is also arranged.
  • the output lever 62 of the drive 50 is articulated by means of the drive coupling 48 at the articulation point 42 of the lever arm 58 of the drive double lever 56 assigned to the middle interrupter unit 10.
  • the drive and the transmission linkages 51, 38 which have the couplings 44, 46 and the drive couplings 48, can be moved from the switch-on position I shown in solid lines to the switch-off position 0 indicated by dashed lines and back again.
  • the axis of rotation of the output lever 62 intersects the straight line 54 which intersects the axes of the parallel drive shafts 30. Since the lever arm of the output lever 62 is parallel to and of the same length as the lever arm 58 of the drive double lever 56 assigned to the middle interrupter unit 12, these lever arms make the switch on - and switch off the same swivel movement.
  • the lever arm 58 of the interrupter unit 10 closes with a perpendicular 52 to the straight line 54 in the switched-on position I, an angle ⁇ 1 'starting from the vertical 52 counterclockwise and in the switched-off position 0, an angle ⁇ 1 ' starting from the vertical 52 clockwise. a.
  • the angle ⁇ 1 is the same as this angle ⁇ 1 ', but denotes the position of the lever arm 58' in the switched-on position I pivoted with respect to the vertical 52 in the counterclockwise direction. In the switched-off position 0, this lever arm 58 'assumes a rotational position relative to the vertical 52 which is offset clockwise by the angle ⁇ 1 .
  • the drive double lever 56 assumes a position symmetrical to the switch-off position 0 in the switched-on position I with respect to the vertical 52.
  • the length of the first coupling 44 is selected such that the lever arm 58 'of the drive double lever 56 assigned to the interrupter unit 12 runs in the switched-on position I of the switch parallel and with respect to the drive shafts 30 in the same direction as the lever arm 58' of the drive double lever 56 of the interrupter unit 10. Since the lever arms 58,58 'of all the drive double levers 56 are of equal length, the lever arm takes 58' of the interrupter unit 12 in switch-off position 0 a to the vertical offset 52 counterclockwise angular position ⁇ 2 a. This angle ⁇ 2 corresponds to the angle ⁇ 1 and the negative angle ⁇ 1 '. Likewise, the angle ⁇ 2 between the lever arm 58 'and the vertical 52 corresponds to the angle ⁇ 1 and the negative angle ⁇ 1 '.
  • the length of the second coupling 46 is such that, in the switched-on position I, the lever 58 of the drive double lever 56 assigned to the interrupter unit 14 is arranged parallel to and pointing in the same direction with respect to the drive shafts 30.
  • the angle ⁇ 3 corresponds to the angle ⁇ 1 'and the negative angle ⁇ 2 .
  • the angle ⁇ 3 that the lever arm 58 makes with respect to the vertical 52 in the off position 0 corresponds to the angle ⁇ 1 ′ and the negative angle ⁇ 2 .
  • the lengths of the first and second couplers 44, 46 are the same, in contrast to the embodiment according to FIG. 1.
  • FIG. 4 shows the stroke of the moving switch contact pieces 18 of the interrupter units 10, 12, 14 of the switch shown in FIGS. 2 and 3 as a function of the angle of rotation of the drive double lever 56 of the middle interrupter unit 12.
  • “0" corresponds to the switch-on position I and "60" of the off position 0 of this double drive lever 56, degrees of angle being increasingly applied clockwise.
  • the stroke is indicated in percent on the ordinate axis, with "0" corresponding to the switch-on position I and "100" corresponding to the switch-off position 0.
  • the parallel 64 to the abscissa axis symbolizes the stroke at which the fixed and moving switch contact pieces 16, 18 separate from one another when switched off or touch when switched on.
  • each interrupter unit 10, 12, 14 has an interruption point shown by the switch contact pieces 16, 18. It is of course also possible to provide a plurality of interruption points per interrupter unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electronic Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Claims (4)

  1. Interrupteur multipolaire pour moyenne et haute tension, avec une unité de rupture (10, 12, 14) par pôle présentant un arbre moteur (30), une pièce de contact mobile (18), et une tige de transfert (38) reliant cette dernière à l'arbre moteur (30), et avec des leviers de commande (40, 56) solidaires des arbres moteurs (30) disposés parallèlement, ces leviers étant reliés, au moyen d'une tige d'entraînement (51), à une commande (50) commune à toutes les unités de rupture (10, 12, 14), caractérisé en ce que les tiges de transfert (38) de toutes les unités de rupture (10, 12, 14) ont une réalisation identique, en ce que la tige d'entraînement (51) présente des accouplements (44, 46) disposés entre les leviers de commande (40, 56), et en ce que les bras de levier (40', 58, 58'), reliés aux points d'articulation (42) d'au moins un accouplement (44, 46) et des leviers de commande correspondants (40, 56), présentent différentes positions de rotation par rapport aux arbres moteurs (30) de ces leviers.
  2. Interrupteur suivant la revendication 1, caractérisé en ce que les bras de levier (40', 58, 58'), reliés à tous les points d'articulation (42) des accouplements (44, 46) et des leviers de commande (40, 56), sont de longueur égale.
  3. Interrupteur suivant l'une des revendications 1 et 2, caractérisé en ce que l'angle (α1), compris entre une perpendiculaire (52) à une droite (54), reliant les axes des arbres moteurs (30) accouplés entre eux par l'intermédiaire d'un accouplement (44; 46), et le bras de levier (40'; 58') relié à un point d'articulation (42) de cet accouplement (44; 46), correspond, en position d'enclenchement (I) de l'interrupteur, à l'angle négatif correspondant (β2; β3) du bras de levier (40'; 58) relié à l'autre point d'articulation (42) en position de désenclenchement (0) de l'interrupteur, et inversement.
  4. Interrupteur suivant l'une des revendications 1 à 3, caractérisé en ce que des doubles leviers de commande (56), présentant sur les arbres moteurs (30) de toutes les unités de rupture (10, 12, 14) des bras de levier (58, 58') de même réalisation et de même longueur reliés aux points d'articulation (42), sont dirigés dans le même sens les uns par rapport aux autres en position d'enclenchement et de désenclenchement (I,0) et sont disposés dans la même position de rotation par rapport à leurs arbres moteurs (30), en ce que les doubles leviers de commande (56) occupent en position d'enclenchement (I), par rapport à une perpendiculaire (52) à une droite (54) reliant les axes des arbres moteurs (30), une position symétrique à la position de désenclenchement (0), et en ce qu'au moins un accouplement (44, 46) s'articule en différents points (42) des doubles leviers de commande (56) assemblés par ce dernier.
EP94100349A 1994-01-12 1994-01-12 Interrupteur multipolaire pour en- ou déclenchementéchelonné Expired - Lifetime EP0663675B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP94100349A EP0663675B1 (fr) 1994-01-12 1994-01-12 Interrupteur multipolaire pour en- ou déclenchementéchelonné
AT94100349T ATE146623T1 (de) 1994-01-12 1994-01-12 Mehrpoliger schalter zum gestaffelten ein- oder ausschalten
DE59401336T DE59401336D1 (de) 1994-01-12 1994-01-12 Mehrpoliger Schalter zum gestaffelten Ein- oder Ausschalten
US08/352,115 US5510590A (en) 1994-01-12 1994-12-01 Multipole switch with common polyphase operating mechanism characterized by staggered connection or disconnection
JP7019652A JPH07220584A (ja) 1994-01-12 1995-01-12 中電圧及び高電圧用の多極スイッチ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94100349A EP0663675B1 (fr) 1994-01-12 1994-01-12 Interrupteur multipolaire pour en- ou déclenchementéchelonné

Publications (2)

Publication Number Publication Date
EP0663675A1 EP0663675A1 (fr) 1995-07-19
EP0663675B1 true EP0663675B1 (fr) 1996-12-18

Family

ID=8215596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100349A Expired - Lifetime EP0663675B1 (fr) 1994-01-12 1994-01-12 Interrupteur multipolaire pour en- ou déclenchementéchelonné

Country Status (5)

Country Link
US (1) US5510590A (fr)
EP (1) EP0663675B1 (fr)
JP (1) JPH07220584A (fr)
AT (1) ATE146623T1 (fr)
DE (1) DE59401336D1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0817225A1 (fr) * 1996-06-26 1998-01-07 GEC Alsthom T&D AG Disjoncteur multipolaire, en particulier pour haute tension
FR2760125B1 (fr) * 1997-02-27 2003-08-22 Gec Alsthom T & D Sa Commutateur pour sectionneur a cinq poles a usage inverseur de phases
CA2355182C (fr) 1998-12-16 2007-11-27 Siemens Aktiengesellschaft Dispositif de transmission de mouvement entre des elements
DE19913059C2 (de) * 1999-03-17 2001-02-15 Siemens Ag Hochspannungsleistungsschalter, insbesondere in dreipoliger Ausführung
US6310311B1 (en) * 1999-08-05 2001-10-30 Gary Hakes Integrated bushing component
DE10261855B3 (de) * 2002-12-20 2004-08-05 Siemens Ag Leistungsschalter
US6956728B2 (en) * 2003-02-28 2005-10-18 Eaton Corporation Method and apparatus to control modular asynchronous contactors
JP4423598B2 (ja) * 2004-08-17 2010-03-03 株式会社日立製作所 真空スイッチギヤの単相モジュールおよび真空スイッチギヤ
WO2013154825A1 (fr) * 2012-04-13 2013-10-17 Abb Technology Ag Arbre d'entraînement flottant entre un ensemble de mise en œuvre et une structure de liaison d'un disjoncteur de type dead tank
DE102016205051B4 (de) * 2016-03-24 2019-09-12 Siemens Aktiengesellschaft Leistungsschalter
CN106158502B (zh) * 2016-09-07 2018-09-28 华仪电气股份有限公司 户外铁道用单极真空断路器
DE102019204443A1 (de) * 2019-03-29 2020-10-01 Siemens Aktiengesellschaft Stromunterbrechersystem
US11004633B1 (en) * 2019-11-04 2021-05-11 Celso Garcia Lellis Junior Three-pole polymeric switch having command and protection electronics integrated into a standalone device
CA3140012A1 (fr) * 2020-11-20 2022-05-20 Technologies Mindcore Inc. Systeme de coupe-circuit a gaz et methode connexe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025375A (en) * 1960-04-04 1962-03-13 Gen Electric Electric circuit breaker having a sealed interrupting unit
CA898314A (en) * 1969-11-12 1972-04-18 Butler James Operating mechanism for multiple circuit breakers
FR2568405B1 (fr) * 1984-07-25 1986-11-07 Alsthom Atlantique Disjoncteur a gaz sous pression pouvant etre assemble et desassemble sans perte de gaz
SE457582B (sv) * 1987-04-09 1989-01-09 Asea Ab Trepolig hoegspaenningsbrytare
US5107081A (en) * 1987-10-26 1992-04-21 Mitsubishi Denki Kabushiki Kaisha Operating mechanism for gas filled switchgear
EP0405253A1 (fr) * 1989-06-30 1991-01-02 Sprecher Energie AG Disjoncteur triphasé à isolation gazeuse
SE468872B (sv) * 1991-11-08 1993-03-29 Asea Brown Boveri Trepolig hoegspaenningsbrytare

Also Published As

Publication number Publication date
US5510590A (en) 1996-04-23
JPH07220584A (ja) 1995-08-18
EP0663675A1 (fr) 1995-07-19
DE59401336D1 (de) 1997-01-30
ATE146623T1 (de) 1997-01-15

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