EP0797226B1 - Disjoncteur à haute tension avec une commande pour l'actionnement - Google Patents
Disjoncteur à haute tension avec une commande pour l'actionnement Download PDFInfo
- Publication number
- EP0797226B1 EP0797226B1 EP97400628A EP97400628A EP0797226B1 EP 0797226 B1 EP0797226 B1 EP 0797226B1 EP 97400628 A EP97400628 A EP 97400628A EP 97400628 A EP97400628 A EP 97400628A EP 0797226 B1 EP0797226 B1 EP 0797226B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- resetting
- breaker
- circuit
- spring
- 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
Links
Images
Classifications
-
- 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
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
- H01H3/3005—Charging means
- H01H3/301—Charging means using a fluid actuator
-
- 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
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/302—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator for fluid insulated switchgear, wherein the insulating fluid is also the working fluid
Definitions
- the present invention relates to a high voltage circuit breaker in which the cut is filled with a good property gas dielectrics, such as sulfur hexafluoride, under a pressure of a few bars.
- a good property gas dielectrics such as sulfur hexafluoride
- An object of the present invention is to provide a circuit breaker having both pneumatic and mechanical, in which the gas used for part of the circuit breaker operations is the isolation gas under breaking chamber pressure.
- Fig. 1 shows, in elevation, a pole of breaker.
- reference 1 designates a column insulator of a circuit breaker pole.
- the column rests on a chassis 2 fixed to the ground, via a column insulator 1A provided with a lower metal flange 1B.
- a fixed contact 3 is placed in the breaking chamber 4 filled with insulating gas such as hexafluoride sulfur SF6.
- Room 4 is delimited, at its upper part, by a first flange 5 to which a first socket is fixed of current SA, and, at its lower part, by a second flange 7 to which a second outlet 7A is fixed.
- the reference 8 designates a fixed blow piston.
- the movable assembly includes contacts 9 and a nozzle 10 integral with a cylinder 11 cooperating with the piston 8.
- the cylinder is connected to an operating rod 12 which passes through whether or not the flange 7 is leaktight.
- This rod 12 is connected to a rod 13 forming part of the command which has been represented in FIG. 1 by the rectangle 14.
- the control is fixed to the chassis 2 by means that are not represented; it is placed directly under the pole at maneuver.
- FIG. 2 represents schematically in axial section an order according to the invention, in the configuration corresponding to the circuit breaker tripped during operation.
- the control comprises a first spring 21, called trigger spring, leaning on the one hand against the lower flange 1B and on the other hand against a crown 22 integral with the rod 13.
- the rod is immobilized, the spring 21 being compressed, by a stop 23 which can be retracted by an electromagnet comprising a rod 24 actuated by a trigger coil 25.
- a return spring 25A and stroke limitation pins represented by unreferenced triangles complete the stop equipment 23. Such a stop is described for example in the document FR-A-2 741 473.
- the order includes a cylindrical element of reset 34 sealingly passes through a wall 32A of an enclosure 32.
- a low power spring, referenced 31, is arranged around the element 34 and is supported by a part on the upper internal wall 32A of the enclosure 32 and, on the other hand, on a shoulder 34A of the element cylindrical 34.
- the element 34 is coaxial with the rod of operation 13.
- the conduit 40 can be obstructed by a valve 41 controllable for example by an electromagnet comprising a coil 42.
- the conduit 50 includes a small pneumatic pump 51 allowing to push back in the direction going from enclosure 32 in column 1A.
- valve 41 When the circuit breaker is on, case of Fig. 2, valve 41 is open.
- the pressure in enclosure 32 is equal to that which prevails in column 1A and which is several atmospheres.
- the cylindrical element 34 is subjected to a force equal to the quotient of the differential pressure between the inside and the outside of the section enclosure of the cylindrical element. This force tends to move element 34 upwards, against the action of spring 31.
- the movement is prohibited by the presence of a stop 43 can be retracted by an electromagnet comprising a rod 44 actuated by a release coil 45.
- the equipment of the stop 43 is completed by a spring of recall and by lugs of stroke limitations not referenced and symbolized by triangles.
- the rod 13 and the cylindrical element 34 are extended respectively by a rod 13A and a tube 34B, engaged one in the other. These elements are arranged so that during a trigger, the rod 13A moves without obstacle, and so that during a reclosing, the tube 34B drives the rod 13A.
- An exemplary embodiment of this arrangement is given with reference to Figs. 6 to 13.
- Fig. 3 shows the configuration of the control after the triggering.
- the command can cycle comprising a closure F followed by an opening O.
- Figs. 6 to 13 illustrate the embodiment and the operation of the rod 13 and of the element 34.
- the rod 13 is terminated by a portion 13A of lower diameter.
- a conical portion 13B separates the two portions of the stem.
- the large diameter portion is secured to a cylinder 51.
- Element 34 is a rod which is extended by a tubular portion 34B. This rod slides so watertight through the wall 32A of the enclosure 32 previously described.
- the tubular portion carries at its end housings for balls 52, for example three balls arranged at 120 ° from each other.
- a movable tube 55 surrounds the rod 13A and the portion tubular 34B.
- the inner diameter of the tube 55 is chosen to come into contact with the balls 52 when these are based on the portion 13B of the rod 13.
- the tube 55 has at its end near the cylinder 51, an internal conical ramp 55A, so that the thickness of the tube at its end opposite the cylinder 51 is weaker than that of the rest of the tube.
- the diameter of the cylinder 51 is chosen so that the tube 55 can come in press against the end of the cylinder and allow pushing from cylinder 51 through tube 55.
- the tube 55 carries a crown 56 serving to support a end of a spring 57 whose other end is supported on the wall 32A.
- the spring is surrounded by a sleeve 58 fixed by one end to the wall 32A and carrying to its other end of a crown 59.
- Fig. 6 corresponds to a configuration in which the circuit breaker is closed.
- the tube 55 is in contact with the cylinder 51, the spring 57 is relaxed, the end of the tubular portion 34B is engaged around the end of the rod 13A, the balls being in simultaneous contact with the rod 13A and with tube 55.
- Opening the circuit breaker results in the displacement to the right of the rod 13-13A under the action of the trigger spring described above.
- Spring 57 is compressed.
- the balls 52 are located on ramp 13B and in the vicinity of the ramp 55A.
- a reset operation is manifested by a displacement to the left of the rod 34 which pushes the rod 13A because the balls are then resting on the conical part 13B and trapped by the tube 55.
- the tube 55, pushed by the spring 57 follows the movement.
- the crown 56 reaches the crown 59, the movement of the tube 55 is stopped.
- the rod 34B continues its movement over a few millimeters, which allow the balls to climb on the ramp 13B and disconnect parts 13-13A and 34B (Fig. 8). Movement of element 34-34B has an overtravel of a few millimeters (12 for example) which allows the stop hooking the rod 13-13A back into place.
- the configuration is then that of Fig. 9.
- Resetting is carried out by moving towards the right of the rod figure 34-34B (Fig.11). At the beginning of the race, the tube 55 remains stationary. When the balls 52 reach the ramp 13A (Fig.12), the tube 55 is driven to its turn compressing the spring 57. A slight overtravel (3 millimeters for example) allow the stopper to reset to return to position.
- the command is in the configuration of Fig. 13, ready to perform a closing operation.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Emergency Protection Circuit Devices (AREA)
- Circuit Breakers (AREA)
- Lasers (AREA)
Description
- la figure 1 est une vue en élévation d'un pôle de disjoncteur selon l'invention,
- la figure 2 est une vue schématique de la commande du disjoncteur, représentée en position enclenchée,
- la figure 3 est une vue schématique de la commande après une opération de déclenchement,
- la figure 4 est une vue schématique de la commande, après une opération d'enclenchement consécutive à une première manoeuvre de déclenchement d'un cycle O,0,3sF,O,
- la figure 5 est une vue schématique de la commande, après la seconde manoeuvre de déclenchement d'un cycle O, 0,3sF,O,
- les figures 6 à 13 illustrent les diffférentes phases de la manoeuvre de la commande, dans un mode particulier de réalisation.
Claims (3)
- Disjoncteur à haute tension comprenant au moins une chambre de coupure remplie par un gaz diélectrique sous pression, une tige de manoeuvre (13) traversant de manière étanche un flasque (1B) d'extrémité du disjoncteur, et une commande pour l'actionnement de ladite tige, ladite commande comprenant un ressort de déclenchement (21) maintenu bandé lorsque le disjoncteur est fermé par une butée de déclenchement (23) commandable, caractérisé en ce que ladite commande comprend un système de réenclenchement comprenant une enceinte fermée étanche (32) communiquant avec la chambre de coupure sous pression par un premier conduit (40) obturable par une vanne (41) et par un second conduit (50) dans lequel est placé en série une pompe à vide (51), le système comprenant en outre un élément de réenclenchement (34) coulissant de manière étanche à l'intérieur de ladite enceinte et rappelé vers l'intérieur de l'enceinte par un ressort (31), ledit élément étant associé à une butée (43) de réenclenchement commandable, ledit élément étant disposé dans l'axe de ladite tige (13), ledit élément (43) étant agencé pour permettre le réenclenchement du disjoncteur sans gêner une opération ultérieure de déclenchement.
- Disjoncteur selon la revendication 1, caractérisé en ce que l'élément de réenclenchement (34) est une tige dont la section traversant la paroi (32A) de ladite enceinte (32) est bien supérieure à la section de la tige de manoeuvre (13) traversant ledit flasque d'extrémité (1B).
- Disjoncteur selon l'une des revendications 1 et 2, caractérisé en ce que l'élément de réenclenchement (34) est une tige prolongée par une portion tubulaire (34B) munie à son extrémité d'orifices pour des billes (52), ladite tige de manoeuvre (13) étant prolongée par une portion de diamètre inférieur (13A) séparée par une rampe conique (13B), un tube (55) étant disposé autour de ladite portion tubulaire (34B) et de ladite tige 13A, le diamètre intérieur dudit tube (55) étant choisi pour assurer un coulissement à frottement doux lorsque les billes (52) se trouvent dans une section de la partie (13A) à diamètre réduit de la tige de manoeuvre, ledit tube (55) comportant une extrémité conique (55A) telle que lorsque les billes (52) sont disposées à la fois au droit de cette extrémité conique et au droit de ladite rampe conique (13B) le déplacement de l'élément de réenclenchement (34-34B) dans le sens du réenclenchement du disjoncteur provoque le déplacement de la tige de manoeuvre (13-13A) dans le sens de l'enclenchement, la commande comprenant en outre un manchon (58) fixe entourant le cylindre (55) et la partie cylindrique (34B) de l'élément de réenclenchement, ledit manchon comportant à une première extrémité une couronne (59) coopérant avec une couronne extérieure (56) du cylindre (55), un ressort (57) étant disposé entre ladite couronne extérieure et la seconde extrémité du manchon (58).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9603604 | 1996-03-22 | ||
FR9603604A FR2746540B1 (fr) | 1996-03-22 | 1996-03-22 | Commande pour disjoncteur a haute tension |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0797226A1 EP0797226A1 (fr) | 1997-09-24 |
EP0797226B1 true EP0797226B1 (fr) | 2002-06-19 |
Family
ID=9490457
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97400628A Expired - Lifetime EP0797226B1 (fr) | 1996-03-22 | 1997-03-20 | Disjoncteur à haute tension avec une commande pour l'actionnement |
Country Status (7)
Country | Link |
---|---|
US (1) | US5959274A (fr) |
EP (1) | EP0797226B1 (fr) |
CN (1) | CN1071478C (fr) |
AT (1) | ATE219602T1 (fr) |
DE (1) | DE69713425T2 (fr) |
ES (1) | ES2176634T3 (fr) |
FR (1) | FR2746540B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2793945B1 (fr) * | 1999-05-17 | 2001-06-22 | Alstom | Sectionneur haute tension a contact mobile deplace a grande vitesse |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2741473A1 (fr) * | 1995-11-21 | 1997-05-23 | Gec Alsthom T & D Sa | Organe d'accrochage pour dispositif de commande mecanique de disjoncteur |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2681144A (en) * | 1950-08-31 | 1954-06-15 | Robert E Beckwith | Ice cream package |
DE1003321B (de) * | 1954-10-06 | 1957-02-28 | Liebknecht Transformat | Hochspannungsdruckgasschalter |
US2861144A (en) * | 1957-07-08 | 1958-11-18 | Gen Electric | Stored energy type closing device for an electric circuit breaker |
DE1039601B (de) * | 1958-04-11 | 1958-09-25 | Voigt & Haeffner Ag | Druckluftschalter mit in einem Druckluftbehaelter angeordneter Schaltstelle |
US3214543A (en) * | 1960-12-07 | 1965-10-26 | Westinghouse Electric Corp | Compressed-gas circuit interrupters using one gas for interruption and another gas for isolation |
CH566639A5 (fr) * | 1973-11-19 | 1975-09-15 | Bbc Brown Boveri & Cie | |
US4414449A (en) * | 1981-05-26 | 1983-11-08 | Brown Boveri Electric Inc. | Quick open and close disconnect switch |
SE9101831L (sv) * | 1991-06-14 | 1993-03-10 | Asea Brown Boveri | Saekerhetsbrytare med lutningsindikering |
FR2747502B1 (fr) * | 1996-04-10 | 1998-05-15 | Gec Alsthom T & D Sa | Commande a ressorts rectilignes pour disjoncteur a haute tension |
-
1996
- 1996-03-22 FR FR9603604A patent/FR2746540B1/fr not_active Expired - Fee Related
-
1997
- 1997-03-20 EP EP97400628A patent/EP0797226B1/fr not_active Expired - Lifetime
- 1997-03-20 DE DE69713425T patent/DE69713425T2/de not_active Expired - Fee Related
- 1997-03-20 ES ES97400628T patent/ES2176634T3/es not_active Expired - Lifetime
- 1997-03-20 AT AT97400628T patent/ATE219602T1/de not_active IP Right Cessation
- 1997-03-21 CN CN97109617A patent/CN1071478C/zh not_active Expired - Fee Related
- 1997-03-21 US US08/821,881 patent/US5959274A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2741473A1 (fr) * | 1995-11-21 | 1997-05-23 | Gec Alsthom T & D Sa | Organe d'accrochage pour dispositif de commande mecanique de disjoncteur |
Also Published As
Publication number | Publication date |
---|---|
ES2176634T3 (es) | 2002-12-01 |
FR2746540B1 (fr) | 1998-04-24 |
DE69713425D1 (de) | 2002-07-25 |
US5959274A (en) | 1999-09-28 |
ATE219602T1 (de) | 2002-07-15 |
EP0797226A1 (fr) | 1997-09-24 |
CN1164749A (zh) | 1997-11-12 |
DE69713425T2 (de) | 2003-01-23 |
CN1071478C (zh) | 2001-09-19 |
FR2746540A1 (fr) | 1997-09-26 |
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