EP3300097A1 - Einschaltsystem einer vakuumröhre - Google Patents

Einschaltsystem einer vakuumröhre Download PDF

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Publication number
EP3300097A1
EP3300097A1 EP17189168.2A EP17189168A EP3300097A1 EP 3300097 A1 EP3300097 A1 EP 3300097A1 EP 17189168 A EP17189168 A EP 17189168A EP 3300097 A1 EP3300097 A1 EP 3300097A1
Authority
EP
European Patent Office
Prior art keywords
adjusting nut
movable electrode
electrode
electrical connection
actuating
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
EP17189168.2A
Other languages
English (en)
French (fr)
Other versions
EP3300097B1 (de
Inventor
François Famy
Patrice Grosjean
Pierre Newinger
Daniel Reviron
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
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP3300097A1 publication Critical patent/EP3300097A1/de
Application granted granted Critical
Publication of EP3300097B1 publication Critical patent/EP3300097B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H33/6661—Combination with other type of switch, e.g. for load break switches
    • 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
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/003—Earthing switches
    • 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

Definitions

  • the present invention relates to a system for actuating a vacuum interrupter for the purpose of opening an electrical circuit in a medium voltage or high voltage electrical connection apparatus, that is to say an apparatus operating at a voltage greater than 1000V.
  • the invention also relates to an electrical connection apparatus comprising such an actuating system for at least one of its phases.
  • electrical connection apparatus includes indifferently several types of electrical devices such as a switch, a circuit breaker, a contactor, a fuse switch, a recloser, etc.
  • a medium voltage or high voltage electrical connection device of the type described in the document EP2182536 comprises a vacuum interrupter which is placed not in the main circuit comprising the main switch of a phase of the apparatus, but in a branch in parallel of this main switch.
  • a vacuum interrupter which is placed not in the main circuit comprising the main switch of a phase of the apparatus, but in a branch in parallel of this main switch.
  • the main switch In normal operation, when the main switch is closed, no current flows into the vacuum interrupter. It is requested only during an opening operation of the main circuit, with the aid of a mechanism for opening the main switch which first allows the flow to be switched gradually from the main circuit to the bypass. , which opens the main switch while the current flows completely into the vacuum bulb. This is then opened in turn by the opening mechanism. This avoids the occurrence of an electric arc cut at the main switch during the opening operation.
  • the vacuum bulb receives a current only during the opening phase of the main phase circuit, and not in normal operation.
  • the bulb is not solicited during a closing operation of the main circuit and it does not have to support any short-circuit current. It must just be able to withstand a Transient Recovery Voltage-TRV after the main circuit has been cut off.
  • the vacuum can advantageously be simplified and designed much smaller in size than a conventional architecture in which the vacuum interrupter is placed in the main circuit of the electrical connection apparatus.
  • the opening mechanism which makes it possible to gradually switch the current of the main circuit to the bypass and then to open the vacuum bulb placed in the bypass must be very precise and reproducible to ensure on the one hand that, for each phase, the opening of the vacuum interrupter is performed only once the main switch is already open enough to avoid arcing the main switch, and on the other hand that the bulbs empty the different phases of the device are open simultaneously.
  • One of the aims of the invention is to find a simple, reliable and economical system which makes it possible both to carry out the opening movement of a vacuum interrupter and to be able to easily and precisely adjust the moment of triggering of this opening movement.
  • the drive device comprises a hoop acting against a flange of the adjusting nut for driving the movable electrode to the open position.
  • the locking device comprises a locking screw for preventing the rotation of the adjusting nut.
  • the locking device comprises a locking ring removably mounted on the drive device and having notches which cooperate with the teeth of the adjusting nut. The detachable locking ring is snapped onto two lateral advances of the drive device.
  • the actuating system comprises a threaded ring and a sleeve which is fixed to the movable electrode and driven by the threaded ring, the threaded ring being provided with an external thread cooperating with an internal thread of the threaded ring.
  • adjusting nut to adjust the position of the adjusting nut relative to the moving electrode.
  • the sleeve is attached to the moving electrode by a transverse fixing screw which also serves to electrically connect the movable electrode to a connecting cable of the main circuit of the electrical connection apparatus.
  • the actuating system comprises a threaded ring, a bolt screwed to the end of the movable electrode and a fixing screw of the ring with the bolt, the threaded ring being provided with a cooperating external thread. with an internal thread of the adjusting nut to adjust the position of the adjusting nut relative to the moving electrode. It also includes an anti-torsion device with longitudinal grooves cooperating with corresponding grooves of the stud.
  • the invention also describes an electrical connection apparatus comprising a main phase switch and such a system for actuating a vacuum interrupter, the vacuum interrupter being placed in shunt of the main phase switch.
  • the drive device of the vacuum bulb moves under the action of an opening mechanism of the main phase switch.
  • an electrical connection apparatus comprises a main phase switch and a vacuum interrupter which is shunted from the main switch.
  • the vacuum bottle 1 is mounted in a support 5.
  • the vacuum bottle 1 comprises a movable electrode 2 conductive (also called movable rod) and a fixed conductive electrode 3 (also called fixed rod).
  • the movable electrode 2 is movable longitudinally between a so-called closed position in which the two electrodes 2, 3 are in contact with each other and a so-called open position in which the two electrodes 2, 3 are separated.
  • the vacuum interrupter 1 is shown in the closed position.
  • the movable electrode 2 of the vacuum bottle is driven by an actuating system that allows in particular to make an opening movement of the vacuum bottle 1, that is to say to move from the position closed in the open position.
  • the movable electrode 2 may for example be driven by a return spring not shown in the figures.
  • the actuating system comprises a driving device comprising a pallet 25, mobile in rotation about a transverse axis 26, and a ring 20 which is secured to the pallet 25 by means of two lateral rods 21.
  • this driving device moves under the action of a mechanism for opening the main phase switch (no represented in the figures) which acts on the pallet 25.
  • the various figures thus show an arrow schematically the thrust exerted by the opening mechanism on the pallet 25 and on the connecting rods 21 during the opening movement of the vacuum interrupter 1.
  • the apparatus preferably comprises a vacuum interrupter of each switch main and therefore a system of actuation of the vacuum bulb for each phase.
  • the opening mechanism acting on the actuating systems of such an apparatus may, however, be common to all main switches of the apparatus.
  • the actuating system also comprises an adjusting nut 10 which is connected to the movable electrode 2 and which is rotatable to adjust its position relative to the moving electrode 2.
  • the ring 20 of the drive device abuts against a flange 11 of the adjusting nut 10 so as to drive the movable electrode 2 to the open position of the vacuum bottle 1.
  • the adjusting nut 10 thus fulfills several functions, which makes the solution simple and economical to implement. It serves to transmit the movement of the opening mechanism of the connection apparatus to the moving electrode 2 of the vacuum interrupter 1. It also serves to regulate the precise instant when the fixed electrodes 3 and mobile 2 of the Vacuum bulb will separate by playing on the adjustment between the adjusting nut 10 and the moving electrode 2. Indeed, by slightly turning the adjusting nut 10 in one direction or another, is varied the distance between the ring 20 and the flange 11 of the adjusting nut 10, and therefore the moment when the moving electrode 2 will start its opening movement is varied.
  • the adjusting nut 10 thus serves to adjust the opening stroke of the vacuum bottle 1 and does not change the contact pressure.
  • the connection between the adjusting nut 10 and the moving electrode 2 is made in the following manner: the actuating system comprises a threaded ring 15, provided with an external thread cooperating with an internal thread of the nut of setting 10 to adjust the adjustment of the adjusting nut 10 relative to the movable electrode 2, and includes a sleeve 18 inserted inside the threaded ring 15 and attached to the movable electrode.
  • the sleeve 18 is fixed to the moving electrode 2 by a transverse fixing screw 19 which passes through the sleeve 18 and the moving electrode 2.
  • the fixing screw 19 is also used to fix a conductive cable (not shown on the FIG. figures) which electrically connects the movable electrode 2 of the vacuum bulb 1 to the electrical connection apparatus.
  • it also makes it possible to wedge the threaded ring 15 between the rim of the sleeve 18 and the screw 19.
  • the threaded ring 15 is arranged to be able to drive the sleeve 18 during the opening movement, for example by virtue of their respective rim as shown in FIG. figure 2 , but it is not fixed to the sleeve 18.
  • the threaded ring 15 is advantageously free in rotation with respect to the sleeve 18, which avoids any risk of torsion of the moving electrode 2 and therefore of the sealing bellows 4 of the vacuum bulb, when turning the adjusting nut 10.
  • the actuating system further comprises a locking device which makes it possible to freeze the position of the adjusting nut 10 relative to the moving electrode 2, once the adjustment has been made.
  • the locking device comprises a locking screw 12, for example of the needle screw which, once tightened, makes it possible to prevent the rotation of the adjusting nut 10 with respect to the threaded ring 15, and thus to block its position. relative to the moving electrode 2.
  • the electrical connection apparatus comprises a vacuum interrupter 1 identical to that previously described and mounted in a support 5.
  • the moving electrode 2 of the vacuum bulb is driven by an actuating system to effect an opening movement.
  • the movable electrode 2 can likewise be driven for example by a return spring not shown in the figures.
  • the actuating system comprises a driving device comprising a pallet 125, rotatable about a transverse axis 126, and a ring 120 which is actuated by the pallet 125 by means of two lateral rods 121.
  • this drive device moves under the action of the opening mechanism of the main phase switch (not shown in the figures) which acts on the pallet 125.
  • the actuating system also comprises an adjusting nut 110 which is connected to the movable electrode 2 and is rotatable to adjust its position relative to the moving electrode 2.
  • the ring 120 of the drive device abuts against a flange 111 of the adjusting nut 110 so as to drive the movable electrode 2 to the open position of the vacuum bottle 1.
  • This adjustment nut 110 thus serves to transmit the movement of the opening mechanism of the connection apparatus towards the moving electrode 2 of the vacuum ampoule 1 and to regulate the precise instant when the fixed and movable electrodes 2 of the vacuum bulb will separate by playing on the adjustment between the adjusting nut 110 and the movable electrode 2. Indeed, by slightly turning the adjusting nut 110 in one direction or another, we varies the distance between the flange 111 of the adjusting nut 110 and the ring 120, and thus the time is varied when the moving electrode 2 will begin its opening movement.
  • the connection between the adjusting nut 110 and the moving electrode 2 is made as follows: the actuating system comprises a threaded ring 115 having an external thread cooperating with an internal thread of the adjusting nut 110 to adjust the adjustment of the adjusting nut 110 relative to the moving electrode 2, and also comprises a pin 116, an anti-torsion device 118, a washer 119 and a fixing screw 117.
  • the stud 116 comprises an internal thread which on one side cooperates with an external thread on the end of the movable electrode 2 and which on the other side cooperates with the fixing screw 117.
  • the screw 117 is introduced in the ring 115, it is pressed against a flange of the ring 115 and, once screwed to the stud 116, allows to maintain the assembly composed of the ring 115, the pin 116, the anti-torsion device 118, the washer 119 and the moving electrode 2.
  • the washer 119 is used to fix a conductive cable (not shown in the figures) making it possible to electrically connect the mobile electrode 2 of the vacuum interrupter 1 to the electrical connection apparatus .
  • the anti-torsion device 118 is for example a fixed part which is wedged in the support 5 of the vacuum bottle 1 and which comprises internal longitudinal grooves cooperating with corresponding external splines on the stud 116, so that during the movements of the mobile electrode 2, the stud 116 can slide longitudinally but without risk of rotation relative to the support 5.
  • the actuating system further comprises a locking device which fixes the position of the adjusting nut 110 relative to the movable electrode 2, once the adjustment is made.
  • the locking device comprises a locking ring 112 which is removable. This locking ring 112 is introduced into two lateral projections 122 extending on either side of the ring 20.
  • These advances comprise, for example, clipping means which make it possible to easily snap the locking ring 112 to maintain it. in the locked position once the adjustment is made, and which also make it possible to remove it very easily when an operator wants to adjust the position of the adjusting nut 110.
  • the adjusting nut 110 optionally has at its end a shape that makes it possible to handle it with a key or a tool, such as a hexagonal shape in the example of the figure 3 .

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP17189168.2A 2016-09-23 2017-09-04 Einschaltsystem einer vakuumröhre Active EP3300097B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1658958A FR3056823B1 (fr) 2016-09-23 2016-09-23 Systeme d'actionnement d'une ampoule a vide

Publications (2)

Publication Number Publication Date
EP3300097A1 true EP3300097A1 (de) 2018-03-28
EP3300097B1 EP3300097B1 (de) 2021-11-03

Family

ID=57485705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17189168.2A Active EP3300097B1 (de) 2016-09-23 2017-09-04 Einschaltsystem einer vakuumröhre

Country Status (4)

Country Link
US (1) US10217581B2 (de)
EP (1) EP3300097B1 (de)
CN (1) CN107871640B (de)
FR (1) FR3056823B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3089342A1 (fr) 2018-12-04 2020-06-05 Schneider Electric Industries Sas Système d'actionnement pour une ampoule à vide
EP3699942A1 (de) 2019-02-25 2020-08-26 Schneider Electric Industries SAS Einschaltsystem einer vakuumlampe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4276871A1 (de) * 2022-05-12 2023-11-15 ABB Schweiz AG Verfahren zum zusammenbauen eines schaltgeräts für elektrische mittelspannungssysteme

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655930A (en) * 1970-05-07 1972-04-11 Powerdyne Inc Multiple vacuum switch apparatus having longitudinal actuator
SU1332407A1 (ru) * 1985-10-14 1987-08-23 Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Низковольтного Аппаратостроения Вакуумный выключатель
JPH117871A (ja) * 1997-06-18 1999-01-12 Meidensha Corp 開閉装置
EP1139367A1 (de) * 2000-03-31 2001-10-04 Schneider Electric Industries SA Unterbrechungseinheit mit Vakuumrohr und Befestigungsmitteln sowie eine solche Einheit benutzende Schaltanlage
EP2037475A1 (de) * 2007-09-13 2009-03-18 Eaton Electric B.V. Betriebsmechanismus mit Einstellung der Kontaktkraft

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1015410A (en) * 1911-02-06 1912-01-23 Lemuel A Thomas Oil-burner.
US5449868A (en) * 1992-08-07 1995-09-12 Square D Company Vacuum bottle contactor tip pressure adjuster
DE19959207C2 (de) * 1999-12-08 2001-10-18 Siemens Ag Vakuumschütz mit verschiebbarem Führungselement
FR2808117B1 (fr) * 2000-03-31 2003-01-24 Schneider Electric Ind Sa Appareillage electrique de coupure comportant une ampoule a vide et une liaison electrique flexible
JP2006310133A (ja) * 2005-04-28 2006-11-09 Mitsubishi Electric Corp 真空遮断器およびその接点のスロークローズ方法並びにそれを用いた接点の摩耗量測定方法および接点間のギャップ長さ設定方法
WO2008030606A2 (en) * 2006-09-08 2008-03-13 Stemco Lp Self-locking nut
FR2946180B1 (fr) * 2009-05-26 2012-12-14 Areva T & D Sa Dispositif d'accrochage et de verrouillage interne a un interrupteur ou a un disjoncteur.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655930A (en) * 1970-05-07 1972-04-11 Powerdyne Inc Multiple vacuum switch apparatus having longitudinal actuator
SU1332407A1 (ru) * 1985-10-14 1987-08-23 Всесоюзный Научно-Исследовательский,Проектно-Конструкторский И Технологический Институт Низковольтного Аппаратостроения Вакуумный выключатель
JPH117871A (ja) * 1997-06-18 1999-01-12 Meidensha Corp 開閉装置
EP1139367A1 (de) * 2000-03-31 2001-10-04 Schneider Electric Industries SA Unterbrechungseinheit mit Vakuumrohr und Befestigungsmitteln sowie eine solche Einheit benutzende Schaltanlage
EP2037475A1 (de) * 2007-09-13 2009-03-18 Eaton Electric B.V. Betriebsmechanismus mit Einstellung der Kontaktkraft

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3089342A1 (fr) 2018-12-04 2020-06-05 Schneider Electric Industries Sas Système d'actionnement pour une ampoule à vide
EP3664118A1 (de) 2018-12-04 2020-06-10 Schneider Electric Industries SAS Einschaltsystem einer vakuumlampe
CN111276364A (zh) * 2018-12-04 2020-06-12 施耐德电器工业公司 用于致动真空瓶的系统
US10879024B2 (en) 2018-12-04 2020-12-29 Schneider Electric Industries Sas System for actuating a vacuum bottle
EP3699942A1 (de) 2019-02-25 2020-08-26 Schneider Electric Industries SAS Einschaltsystem einer vakuumlampe
FR3093226A1 (fr) 2019-02-25 2020-08-28 Schneider Electric Industries Sas Système d'actionnement pour une ampoule à vide
US10916393B2 (en) 2019-02-25 2021-02-09 Schneider Electric Industries Sas Actuating system for a vacuum bottle

Also Published As

Publication number Publication date
CN107871640B (zh) 2021-04-09
CN107871640A (zh) 2018-04-03
FR3056823A1 (fr) 2018-03-30
US10217581B2 (en) 2019-02-26
EP3300097B1 (de) 2021-11-03
US20180090288A1 (en) 2018-03-29
FR3056823B1 (fr) 2018-10-12

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