EP1195788A1 - Schalterpol für Vakuumröhre - Google Patents

Schalterpol für Vakuumröhre Download PDF

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Publication number
EP1195788A1
EP1195788A1 EP01402501A EP01402501A EP1195788A1 EP 1195788 A1 EP1195788 A1 EP 1195788A1 EP 01402501 A EP01402501 A EP 01402501A EP 01402501 A EP01402501 A EP 01402501A EP 1195788 A1 EP1195788 A1 EP 1195788A1
Authority
EP
European Patent Office
Prior art keywords
flange
insulating
electrical connection
circuit breaker
linked
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.)
Withdrawn
Application number
EP01402501A
Other languages
English (en)
French (fr)
Inventor
Said Attak
Lucien Sannino
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.)
Alstom SA
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Publication of EP1195788A1 publication Critical patent/EP1195788A1/de
Withdrawn legal-status Critical Current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
    • H01H33/666—Operating arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66238—Specific bellows details
    • H01H2033/66246—Details relating to the guiding of the contact rod in vacuum switch belows
    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66238—Specific bellows details
    • H01H2033/66253—Details relating to the prevention of unwanted rotation of the contact rod in vacuum switch bellows
    • 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
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the present invention relates to a circuit breaker pole of the light bulb type.
  • vacuum said vacuum interrupter comprising a cylindrical insulating envelope closed by a first flange and by a second flange and containing a fixed contact linked to said first flange and a movable contact linked to a rod metallic sealingly passing through said second flange, said vacuum interrupter being supported by a support, said metal rod being electrically connected to a rigid electrical connection, via at least one flexible electrical connection and being mechanically connected to an operating rod.
  • the present invention provides another mounting for the connection between the rod metallic, linked to the movable contact, and the operating rod connected to one of its ends to a pivoting control lever.
  • the proposed assembly is simple, space-saving, ensures good guidance of the metal rod during of its movements and thereby ensures good mechanical strength during displacements of the rod and during the electrodynamic forces undergone by the vacuum interrupter taking into account the neighboring ampoules of the other poles of the breaker.
  • the subject of the invention is therefore a circuit breaker pole of the light bulb type.
  • vacuum said vacuum interrupter comprising a cylindrical insulating envelope closed by a first flange and by a second flange and containing a fixed contact linked to said first flange and a movable contact linked to a rod metallic sealingly passing through said second flange, said vacuum interrupter being supported by a support, the metal rod being electrically connected to a rigid electrical connection, via at least one flexible electrical connection and being mechanically connected to an operating rod, characterized in that one end of the operating rod maneuver is linked to an insulating connecting rod head articulated around an axis articulation inside a cylindrical articulation yoke linked to said metal rod, the axial movement, in the axis of the vacuum interrupter, of said yoke being guided inside an insulating guide passing through said rigid electrical connection and being attached thereto, said hinge pin being trapped in said insulating guide over the entire path of its displacement when opening or closing the contacts.
  • said insulating guide is immobilized axially, radially, and in rotation by means of two rigid tongues one of which is inserted into a first groove on the outer periphery said insulating guide, first groove allowing by its length circumferential a rotation of said guide of about a quarter turn and of which the other is inserted into a second groove on the outer periphery of said insulating guide, this second groove preventing any rotation of said guide insulator when a said tab is inserted therein, said tabs being attached to said rigid electrical connection.
  • Fig. 1 shows a perspective view of a vacuum interrupter circuit breaker pole according to the invention.
  • Fig. 2 shows in elevation the circuit breaker pole of FIG. 1 without sound support.
  • Fig. 3 is a partial sectional view showing the articulated connection between the connecting rod and metal rod.
  • Fig. 4 is a partial exploded view showing the different parts from the articulation rod up to a spacer coming to attach directly to the end of the metal rod.
  • Fig. 5 is a perspective view showing the insulating guide in isolation guiding the articulation yoke rigidly connected to the rod metallic.
  • Fig. 1 thus shows a pole of vacuum interrupter circuit breaker according to the invention.
  • the vacuum bulb 1 the connection assembly electric connecting the mobile electric contact and its metal rod, not visible in this figure, to a rigid electrical connection 2 by via two flexible electrical connections 3 and 4, all of mechanical joint connection between the same movable contact linked to its rod metal and an operating rod 5, an insulating guide 6 ensuring the axial guidance of the parts rigidly linked to the metal rod and to the contact mobile and finally an insulating support 7A, 7B supporting the vacuum interrupter 1 by one of its ends via a rigid electrical connection 8 fixed to a first end flange 9 to which is fixed, internally, a fixed electrical contact 10 (Fig. 2) by a metal rod 11.
  • a fixed electrical contact 10 Fig. 2 by a metal rod 11.
  • To this support insulator 7A, 7B is also fixed the rigid electrical connection 2 electrically connected to the movable contact via the connections flexible electrics 3 and 4.
  • insulating support 7A, 7B is also fixed a piece of material insulator 17 ensuring the radial maintenance of the bulb 1 on the side of its second end flange 13 (Fig. 2) opposite the first flange end 9.
  • the bulb at vacuum 1 comprising a cylindrical insulating envelope 14 closed at its ends by the first metal flange 9 and by the second flange metallic 13 and internally containing its fixed electrical contact 10 linked to the first flange 9 by a rod 11 and the movable electrical contact 15 linked to a metal rod 16 which passes through the second end flange 13 of sealingly thanks to a metal sealing bellows 17.
  • the contacts are in the closed position and the metal rod 16 can so slide down to separate the contacts.
  • a screw 18 (Fig. 3 and 4), a metal spacer 19, a metal contact flange 20 and a yoke of cylindrical articulation 21.
  • the electrical connection between the movable contact 15 and its rod 16 on the one hand and the rigid electrical connection 2 on the other hand is provided by both flexible electrical connections 3 and 4 fixed on the one hand, by screws and nuts 24, 25, to the rigid electrical connection 2, itself linked to the support 7A, 7B, and on the other hand, by screws 26, to the metal contact flange 20.
  • the hinge pin 22 When opening and closing the contacts, the hinge pin 22 remains trapped, throughout the journey, inside the insulating guide, which avoids any need to maintain this axis by a head on one side and a circlip or other equivalent retainer on the other side.
  • the bulb vacuum is supported by the support 7A, 7B at the level of the first flange 9 by the rigid electrical connection 8.
  • the bulb On the side of the second end flange 13, the bulb is simply held radially by a span of radial retention 30, integral with the flange 13, which penetrates into an orifice of the piece of insulating material 12 linked to the support 7A, 7B.
  • the rigid tabs 28 and 29 have a curved end in the shape of a horn, this is intended to maintain flexible electrical connections 3 and 4 in good position because indeed, during the flow of current, these flexible connections are subjected to approximating electrodynamic forces.
  • the insulating guide 6 has a first external peripheral groove 31 and a second external peripheral groove 32 into which are respectively inserted the rigid tabs 29 and 28.
  • the groove 31 has a large peripheral length and allows, once the tab 29 inserted, make at least a quarter turn with the insulating guide 6 while the groove 32 has a length corresponding to the width of the tab 28, so that, when inserted, the insulating guide 6 is immobilized in rotation.
  • the insulating guide further comprises two recesses 33 and 34. A alone is enough, but having two allows you to introduce the axis by either side depending on the space available.
  • the assembly is as follows: after having fixed the spacer 19, the flange of contact 20 and the yoke 21 on the movable metal rod 16 by the screw 18, we put the insulating guide 6 around the yoke 21 and then insert the rigid tongue 29 in the groove 31 and fixed, with the flexible connection 4, at the rigid connection 2 with a bolt 24-25; we present the connecting rod 23 in the yoke 21, the pin 22 is inserted in the yoke 21 and in the connecting rod 23 passing through one of the recesses 33 or 34 of the insulating guide 6; we then traps the axis 22 in the insulating guide 6 by making it make a quarter turn, then immobilize it in rotation by inserting the rigid tongue 28 in the groove 32. This tab 28 is then fixed, with the connection flexible 3, on the rigid connection 2 with a bolt 24-25.
  • the insulating guide 6 is well immobilized axially, radially and in rotation and the yoke 21 is well guided to inside this guide 6. Assembly is easy and has few parts; the whole is compact since the articulation and the guidance are done at the same level thanks to the use of a hollow cylindrical yoke with internal joint and whose external surface is guided by the insulating guide 6. No additional holding piece is required for the axle of articulation 22 since it is trapped in guide 6.
  • the insulating guide 6 is also a part low cost injected plastic.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP01402501A 2000-10-06 2001-09-28 Schalterpol für Vakuumröhre Withdrawn EP1195788A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0012824 2000-10-06
FR0012824A FR2815168B1 (fr) 2000-10-06 2000-10-06 Pole de disjoncteur du type a ampoule a vide

Publications (1)

Publication Number Publication Date
EP1195788A1 true EP1195788A1 (de) 2002-04-10

Family

ID=8855095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01402501A Withdrawn EP1195788A1 (de) 2000-10-06 2001-09-28 Schalterpol für Vakuumröhre

Country Status (2)

Country Link
EP (1) EP1195788A1 (de)
FR (1) FR2815168B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1381064A1 (de) * 2002-07-12 2004-01-14 Hitachi, Ltd. Vakuumschalter
EP2843678A4 (de) * 2012-04-25 2016-02-17 Hyun Dai Heavy Ind Co Ltd Struktur zur verhinderung der exzentrizität eines beweglichen kontakts in einem vakuumschutzschalter
CN105762011A (zh) * 2016-04-29 2016-07-13 句容华源电器设备有限公司 一种方便调试的真空断路器绝缘拉杆
US11688566B2 (en) 2021-01-07 2023-06-27 Abb Schweiz Ag Switching apparatus for electric systems

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060054A1 (de) * 1981-03-06 1982-09-15 Kabushiki Kaisha Toshiba Vakuumschalter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1403132A1 (ru) * 1986-11-28 1988-06-15 Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Производственного Объединения "Уралэлектротяжмаш" Вакуумный выключатель

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060054A1 (de) * 1981-03-06 1982-09-15 Kabushiki Kaisha Toshiba Vakuumschalter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET PATENTS ABSTRACTS Week 8851, 8 February 1989 Derwent World Patents Index; AN 1988-367351, XP002170518 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1381064A1 (de) * 2002-07-12 2004-01-14 Hitachi, Ltd. Vakuumschalter
EP2843678A4 (de) * 2012-04-25 2016-02-17 Hyun Dai Heavy Ind Co Ltd Struktur zur verhinderung der exzentrizität eines beweglichen kontakts in einem vakuumschutzschalter
CN105762011A (zh) * 2016-04-29 2016-07-13 句容华源电器设备有限公司 一种方便调试的真空断路器绝缘拉杆
US11688566B2 (en) 2021-01-07 2023-06-27 Abb Schweiz Ag Switching apparatus for electric systems

Also Published As

Publication number Publication date
FR2815168B1 (fr) 2002-12-20
FR2815168A1 (fr) 2002-04-12

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