EP0878817B1 - Disjoncteur de générateur - Google Patents

Disjoncteur de générateur Download PDF

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Publication number
EP0878817B1
EP0878817B1 EP98401151A EP98401151A EP0878817B1 EP 0878817 B1 EP0878817 B1 EP 0878817B1 EP 98401151 A EP98401151 A EP 98401151A EP 98401151 A EP98401151 A EP 98401151A EP 0878817 B1 EP0878817 B1 EP 0878817B1
Authority
EP
European Patent Office
Prior art keywords
contact
moving
fixed
main
arcing
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
EP98401151A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0878817A1 (fr
Inventor
Jean-Michel Plat
Jean-Marc Willieme
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.)
Grid Solutions SAS
Original Assignee
GEC Alsthom T&D 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 GEC Alsthom T&D SA filed Critical GEC Alsthom T&D SA
Publication of EP0878817A1 publication Critical patent/EP0878817A1/fr
Application granted granted Critical
Publication of EP0878817B1 publication Critical patent/EP0878817B1/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
    • 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

Definitions

  • the invention relates to a generator circuit breaker comprising a fixed tubular main contact and a tubular main contact movable relative to the main tubular contact fixed according to a certain longitudinal direction, the main contacts defining a volume inside which is placed a vacuum or gas bulb with a fixed arcing contact and an arcing contact movable relative to the fixed arcing contact in said longitudinal direction, a means of synchronization ensuring the separation of the main front contacts separation of arcing contacts.
  • a circuit breaker is known from document DE 3407858.
  • Such a circuit breaker is usually placed between a generator a power plant and a transformer connected to an energy transmission line.
  • the main contacts are massive enough to support high nominal currents without overheating. They define a relatively large volume important, which is more difficult to put under gas pressure or under empty, than a smaller bulb, placed inside of this volume.
  • the bulb includes a fixed arcing contact and a contact movable arc, less massive because supporting only the current breaker break.
  • the main contact and the movable arcing contact extending in the same direction longitudinal are moved in translation parallel to this steering, by pneumatic means with pistons and cylinders.
  • the object of the invention is to provide a generator circuit breaker in which the movable contacts are actuated by means mechanical in limited number and with synchronization simple.
  • the invention relates to a generator circuit breaker comprising a fixed tubular main contact and a main contact tubular movable with respect to the following main tubular contact a certain longitudinal direction, the main contacts defining a volume inside which is placed a vacuum or gas with a fixed arcing contact and an arcing contact movable relative in fixed arc contact in said longitudinal direction, a means of synchronization ensuring the separation of the main front contacts separation of arcing contacts, characterized in that the means of synchronization includes a lever, which is articulated by one of its ends at the fixed main contact, which is, on the one hand, linked in displacement with the main mobile contact, and on the other hand, linked in displacement with the movable arcing contact via a spring, and with a ramp having two connected horizontal levels between them by an inclined intermediate part, the ramp serving as sliding support to a triggering device which blocks the displacement of the movable arcing contact by sliding on one of the horizontal levels of the ramp, and unlocks the movement of the movable arcing
  • the invention also relates to a generator circuit breaker comprising a fixed tubular main contact and a main contact tubular movable with respect to the following main tubular contact a certain longitudinal direction, the main contacts defining a volume inside which is placed a vacuum or gas with a fixed arcing contact and an arcing contact movable relative in fixed arc contact in said longitudinal direction, a means of synchronization ensuring the separation of the main front contacts separation of arcing contacts, characterized in that the means of synchronization includes a lever which is articulated by one of its ends at the main fixed contact, which is linked in displacement, on the one hand, with the movable arcing contact and on the other hand, with the contact main mobile by means of a roller guided in a groove formed in the moving main contact and having two levels horizontal interconnected by an inclined intermediate part, the displacement of the driving main contact, when the roller is guided by the inclined intermediate part of the groove, the displacement of the movable arcing contact by means of rotation lever.
  • the lever common to the two moving contacts of the circuit breaker according to the invention makes it possible to move them in translation from a single mechanical control, reducing the number of means to implement for their displacement.
  • Synchronization of the movement of the mobile main contact with respect to the moving arcing contact is simply obtained using a ramp or groove with two horizontal levels interconnected by an inclined intermediate part. Contacts arc only open under the action of the inclined intermediate part. They allow to establish a distance between the main contacts sufficient to withstand a transient electrical voltage before opening arcing contacts.
  • the circuit breaker according to the invention is inserted between the portions 1 and 2 of a phase conductor of an electric line. Portions 1 and 2 of the conductor are mechanically connected and electrically to a main contact 5 and to a contact part 4 circuit breaker. These contacts cooperate with a main contact 6 movable relative to them in a longitudinal direction D.
  • the cooperation between the fixed main contact 5 and the main contact mobile 6 is provided by a ring of contact fingers 5A.
  • a sliding contact 4A ensures cooperation between the fixed contact part 4 and the mobile main contact 6.
  • the main contact 5 and the fixed contact part 4, and the movable main contact 6 have a tubular shape defining a volume inside which is placed a vacuum or gas bulb 15 such as sulfur hexafluoride SF 6 .
  • This bulb comprises a cylindrical insulating envelope 15A provided with a metal bottom 15B provided with a central hole 15C through which a movable arcing contact 15D slides.
  • the bulb is held fixed in the volume by arms not shown fixed on the bottom 15B.
  • the bulb is sealed at the central hole by a bellows 15E.
  • the vacuum or the gas being consigned in the bulb it reigns in the volume defined by the main contacts an equal pressure of preferably air pressure.
  • the bulb is closed on the side opposite the bottom 15B by a bottom metal 15F carrying a fixed arcing contact 15G mounted inside the bulb, and a crown of metal contact fingers 15H mounted on the outside of the bulb.
  • the movable main contact 6 is secured to a lever 171 by through a rigid rod 22.
  • One end of the lever 171 is articulated in rotation around a pivot 18 secured to the workpiece fixed contact 4.
  • the movable arcing contact 15D is connected to the same lever 171 by means of a spring 19.
  • a ramp 21 comprising two horizontal levels 21A and 21C, connected by an inclined intermediate part 21B, is integral with the lever 171 by one of its ends.
  • a trigger member 23, comprising a frame 23A accommodating a retractable hanging finger 23B mounted on a spring 23C and moving in translation perpendicular to the direction longitudinal D through a hole 25A formed in a fixed plane 25 in the volume of the circuit breaker, slides on the ramp 21, and is maintained in contact with the ramp under the action of a compressed 23D spring between the ramp 21 and the fixed plane 25.
  • a single control means allows move the main contact 6 in translation in direction D. It it is also possible to rotate the lever 171 to using this means.
  • the movable main contact 6 performs a stroke portion opening corresponding to a distance from the fixed main contact 5 sufficient to hold a transient electrical voltage in the air breaker. This distance having been crossed, the frame 23A approaches the part inclined intermediate 21B of the ramp 21, and passes on the level horizontal 21C of the ramp, under the action of spring 23D. The difference height of the two horizontal levels of the ramp 21 allows the hanging finger 23B to retract from the arcing contact 15D mobile, which unlocks and moves quickly in translation under the action of spring 19.
  • the translation of the following movable main contact 6 drives, via the rod 22 and the lever 171, the translation of the ramp 21 and the movable arcing contact 15D.
  • the frame 23A slides on the horizontal level 21C of the ramp, approaches the inclined intermediate part 21B, and passes on the horizontal level 21A.
  • the hanging finger 23B protrusion out of the fixed plane 25 under the joint action of the springs 23C and 23D.
  • the movable main contact 6 then completes the travel of closing.
  • the travel supplement of the mobile main contact 6 by report to the movable arcing contact 15D causes compression of the spring 19.
  • the circuit breaker has several advantages.
  • the translation speed of the movable main contact 6 is relatively slow, which, given the massive nature of parts, reduces the power of the mechanical control of displacement.
  • the translation of the movable arcing contact 15D is relatively fast, which minimizes exposure of arcing contacts at the breaking current.
  • the holding distance of the transient voltage of main contacts in the air is adjusted according to the voltage nominal of the power line, using the length of the levels horizontal of the ramp.
  • FIG. 2 illustrates a second particular embodiment of the invention, the elements of which are common with those of FIG. 1 have the same reference.
  • a lever 172 is articulated in rotation at one of its ends around a pivot 18 connected to the contact piece fixed 4.
  • An obviously 27 is provided in the movable main contact 6 to allow passage of the lever 172 without preventing the translation of the movable main contact 6.
  • the movable arcing contact 15D is secured to lever 172, by means of a rigid rod 24.
  • One or two identical grooves 29 are formed in the thickness of the lateral surface of the movable main contact 6 and arranged symmetrically with respect to a median plane of the circuit breaker, represented by the plane of Figure 2.
  • Each groove includes two horizontal levels 29A and 29C, interconnected by an inclined intermediate part 29B.
  • a rigid rod 26 is arranged perpendicular to the plane of the circuit breaker, and is rigidly connected to lever 172.
  • Two identical rollers 31 are carried at the two ends of the rigid rod 26 and guided inside the two grooves 29.
  • the movable main contact 6 performs a stroke portion corresponding to a sufficient distance from the fixed main contact 5 to hold in the air a transient electric voltage of the circuit breaker. This distance being crossed, the rollers 31 approach the part inclined intermediate 29B of the grooves 29. In this zone, they continue to roll inside the grooves, but are driven in an angular displacement, which in turn causes the rotation of the lever 172.
  • the latter via the rigid rod 24, drives in rapid translation the movable arcing contact 15D, which separates from the 15G fixed arcing contact.
  • rollers approach the inclined intermediate part 29B of the grooves 29. In this zone, they continue to roll inside the grooves but are entrained in an angular displacement, which causes the rotation of the lever 172, and the displacement in translation 15D movable arcing contact, closing the electrical contact with the fixed arcing contact 15G.
  • the circuit breaker has the advantage of determining the speed and acceleration of the movement of the arcing contact 15D by the slope of the inclined intermediate part 29B.
  • FIG. 3 illustrates a variant of the embodiment previous, in which the lever which here bears the reference 173 is folded and bent in an approximately central part to constitute the groove 29. It should be understood that the fold of the lever delimits the interior of groove 29.
  • the moving link of the movable main contact 6 with the lever 173 is provided by a roller 31 mounted to rotate freely on the rigid rod 26 whose two ends are fixed to the main contact mobile 6.
  • the displacement of the movable main contact 6 causes the movable arcing contact 15D to move by rotation lever 173 generated by the roller roller 31 inside of a first part 29A of the groove 29.
  • the tube constituting the main contact mobile 6 is lightened, which optimizes the control energy.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Control Of Eletrric Generators (AREA)
  • Circuit Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Protection Of Generators And Motors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP98401151A 1997-05-15 1998-05-14 Disjoncteur de générateur Expired - Lifetime EP0878817B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9705983A FR2763422B1 (fr) 1997-05-15 1997-05-15 Disjoncteur de generateur
FR9705983 1997-05-15

Publications (2)

Publication Number Publication Date
EP0878817A1 EP0878817A1 (fr) 1998-11-18
EP0878817B1 true EP0878817B1 (fr) 2002-03-20

Family

ID=9506932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401151A Expired - Lifetime EP0878817B1 (fr) 1997-05-15 1998-05-14 Disjoncteur de générateur

Country Status (10)

Country Link
US (1) US5952635A (ko)
EP (1) EP0878817B1 (ko)
KR (1) KR19980087040A (ko)
AT (1) ATE214842T1 (ko)
BR (1) BR9801638A (ko)
CA (1) CA2235791A1 (ko)
DE (1) DE69804265T2 (ko)
ES (1) ES2171002T3 (ko)
FR (1) FR2763422B1 (ko)
ID (1) ID20273A (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7705262B2 (en) 2006-05-12 2010-04-27 Areva T&D Sa Alternator disconnector circuit-breaker by a servomotor
US9269514B2 (en) 2011-12-21 2016-02-23 Alstom Technology Ltd. Device for protection against particles generated by an electric switching arc
US9443666B2 (en) 2012-10-02 2016-09-13 Alstom Technology Ltd. Electrical contact device of the contact finger type with a strong nominal current

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859007A1 (de) * 1998-12-21 2000-06-29 Abb Patent Gmbh Lasttrennschalter
DE102005032709A1 (de) 2005-07-07 2007-01-11 Siemens Ag Elektrisches Schaltgerät sowie Verfahren zum Betrieb eines elektrischen Schaltgerätes
FR2896336B1 (fr) * 2006-01-17 2009-04-03 Areva T & D Sa Disjoncteur sectionneur d'alternateur de structure compacte
DE102006023372A1 (de) * 2006-05-16 2007-11-22 Siemens Ag Leistungsschalter
FR2902923B1 (fr) 2006-06-23 2008-09-19 Areva T & D Sa Actionnement par came cylindrique d'un disjoncteur sectionneur d'alternateur
FR2906642B1 (fr) * 2006-09-29 2008-12-19 Areva T & D Sa Actionnement par came cylindrique des contacts d'une chambre de coupure a double mouvement.
US8324521B2 (en) * 2010-11-15 2012-12-04 Eaton Corporation Bellows for use in vacuum interrupters
FR2995131A1 (fr) * 2012-12-12 2014-03-07 Alstom Technology Ltd Disjoncteur a chambre externe
US9761394B2 (en) * 2013-02-08 2017-09-12 Hubbell Incorporated Current interrupter for high voltage switches
US10600592B2 (en) 2013-12-18 2020-03-24 Hubbell Incorporated Single bottle interrupter
FR3029351B1 (fr) * 2014-12-02 2017-12-29 Alstom Technology Ltd Dispositif de coupure electrique integrant un disjoncteur et un sectionneur
GB2565085B (en) * 2017-07-31 2020-05-20 Camlin Tech Limited Improved Vacuum Circuit Breaker
CN110416021A (zh) * 2019-06-14 2019-11-05 平高集团有限公司 灭弧室波纹管及真空灭弧室
US11545321B2 (en) 2020-03-31 2023-01-03 Hubbell Incorporated System and method for operating an electrical switch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3399286A (en) * 1966-03-07 1968-08-27 Powerdyne Inc High voltage electric swtich
DE2230900C3 (de) * 1972-06-23 1981-03-12 Siemens AG, 1000 Berlin und 8000 München Kurzschließvorrichtung für Generatorableitungen
JPS59219822A (ja) * 1983-05-27 1984-12-11 関西電力株式会社 断路器
DE8323522U1 (de) * 1983-08-15 1987-11-05 Siemens AG, 1000 Berlin und 8000 München Trennschalter für metallgekapselte, druckgasisolierte Hochspannungsschaltanlagen
DE3407858A1 (de) * 1984-02-29 1984-08-02 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Elektrischer vakuumschalter
FR2650911B1 (fr) * 1989-08-09 1991-10-04 Alsthom Gec Disjoncteur a moyenne tension
JP2888681B2 (ja) * 1991-10-29 1999-05-10 株式会社東芝 投入抵抗付きガス遮断器
FR2683383B1 (fr) * 1991-11-04 1993-12-31 Gec Alsthom Sa Disjoncteur a haute ou moyenne tension a triple mouvement.
US5495084A (en) * 1994-04-05 1996-02-27 Abb Power T&D Company Inc. Slip-through mounting structure for circuit interrupter
ES2109552T3 (es) * 1994-06-20 1998-01-16 Gec Alsthom T & D Ag Interruptor de gas comprimido.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7705262B2 (en) 2006-05-12 2010-04-27 Areva T&D Sa Alternator disconnector circuit-breaker by a servomotor
US9269514B2 (en) 2011-12-21 2016-02-23 Alstom Technology Ltd. Device for protection against particles generated by an electric switching arc
US9443666B2 (en) 2012-10-02 2016-09-13 Alstom Technology Ltd. Electrical contact device of the contact finger type with a strong nominal current

Also Published As

Publication number Publication date
EP0878817A1 (fr) 1998-11-18
ATE214842T1 (de) 2002-04-15
ES2171002T3 (es) 2002-08-16
US5952635A (en) 1999-09-14
FR2763422B1 (fr) 1999-07-09
KR19980087040A (ko) 1998-12-05
DE69804265D1 (de) 2002-04-25
CA2235791A1 (fr) 1998-11-15
BR9801638A (pt) 1999-06-08
DE69804265T2 (de) 2002-11-21
ID20273A (id) 1998-11-19
FR2763422A1 (fr) 1998-11-20

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