EP0801406A1 - Steuerung mit gradlinigen Federn für Hochspannungs lLeistungsschalter - Google Patents

Steuerung mit gradlinigen Federn für Hochspannungs lLeistungsschalter Download PDF

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Publication number
EP0801406A1
EP0801406A1 EP97400734A EP97400734A EP0801406A1 EP 0801406 A1 EP0801406 A1 EP 0801406A1 EP 97400734 A EP97400734 A EP 97400734A EP 97400734 A EP97400734 A EP 97400734A EP 0801406 A1 EP0801406 A1 EP 0801406A1
Authority
EP
European Patent Office
Prior art keywords
spring
trigger
control
control according
rod
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
EP97400734A
Other languages
English (en)
French (fr)
Other versions
EP0801406B1 (de
Inventor
Edmond Thuries
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 EP0801406A1 publication Critical patent/EP0801406A1/de
Application granted granted Critical
Publication of EP0801406B1 publication Critical patent/EP0801406B1/de
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
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • 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
    • H01H3/3026—Charging means in which the closing spring charges the opening spring or vice versa
    • 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
    • H01H2003/3063—Decoupling charging handle or motor at end of charging cycle or during charged condition
    • 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
    • H01H2003/3094—Power arrangements internal to the switch for operating the driving mechanism using spring motor allowing an opening - closing - opening [OCO] sequence
    • 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
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H01H3/264—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a travelling nut mechanism
    • 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
    • H01H3/3052—Linear spring motors

Definitions

  • the present invention relates to a control for the operation of a high voltage circuit breaker.
  • the invention relates to an order comprising rectilinear springs and making it possible to carry out the opening and closing cycles usually requested by the users.
  • the most commonly requested cycle is a cycle comprising an opening, a closing after 0.3 seconds followed by an opening within 0.02s if the fault has not disappeared.
  • Such a cycle is generally designated by the abbreviation: O-0.3sF-0.02s0.
  • circuit breaker having carried out a 0-0.3sF-0.02sO cycle is also asked to be able to close after a maximum delay of 15s, this closing can be followed by an opening within a delay of 0.02s if the fault persists .
  • patent No. 85 15 751 filed in the name of the company ALSTHOM, there has been described a control with rectilinear springs for a high voltage circuit breaker capable of carrying out the aforementioned cycles.
  • This command has several drawbacks.
  • the device for resetting the springs is complex; it includes many parts and in particular a ratchet wheel which is subject to rapid wear and requires frequent replacement.
  • An object of the invention is to provide a more robust control and requiring lighter maintenance.
  • the device for resetting the control described in the aforementioned patent is bulky.
  • Another object of the invention is to provide a more compact control and more respecting axial symmetry, which allows it to be housed under the poles of the circuit breaker.
  • the subject of the invention is a command for a circuit breaker, enabling a rapid cycle to be carried out.
  • opening, closing and reopening of the circuit breaker (OFO cycle) said control comprising a rod connected to an operating rod of the circuit breaker, said rod being displaceable under the action of a first spring, called tripping spring, the control further comprising a second spring, said engagement spring, disposed in the axis of the first spring, and the relaxation of which causes the compression spring to compress
  • the control further comprising means for compressing the trigger spring after a tripping operation, characterized in that said compression means comprise a motor disposed on the axis of said springs and driving in translation along its axis a rod arranged along the axis of the springs, said rod being integral with arms cooperating with a support ring for the engagement spring.
  • the support ring of the engagement spring is secured to a movable cylinder, one end of which cooperates with a support disc of the release spring during the compression of said release spring.
  • said end of the movable cylinder comprises a ring of pivoting fingers provided with a shoulder on which bears said support disc of the trigger spring during the compression of the latter, said fingers coming into contact in end of stroke of said cylinder with a fixed and moving cylinder, freeing said disc.
  • the stroke of said movable cylinder exceeds the normal position in abutment of said support disc of the trigger spring, in order to allow the repositioning of stops of the support disc of the trigger spring.
  • the end of said arms is fixed to a common crown which comes to bear, during a recompression of the engagement spring, on said support crown of the engagement spring.
  • the stroke of said arms exceeds the normal position in abutment of said support crown of the engagement spring, in order to allow the repositioning of stops of said support crown.
  • the pivoting arms include a device for passing neutral to allow the ring of fingers to assume two fixed positions.
  • each finger has an external portion cooperating with a fixed cylinder to allow, at the end of the recompression maneuver of the engagement spring, the passage of the ring of pivoting fingers from the open position to the reverse position.
  • the example described relates to a circuit breaker with a pole breaking chamber; of course, the control of the invention applies to a circuit breaker comprising several breaking chambers per pole, for example two T-chambers.
  • reference 1 designates an insulating column of a circuit breaker pole. The column rests on a frame 2 fixed to the ground.
  • a fixed contact 3 is placed in the breaking chamber 4 filled with insulating gas such as sulfur hexafluoride SF6.
  • the chamber 4 is delimited, at its lower part, by a first flange 5 to which is fixed a first socket outlet 5A, and, at its lower part, by a second flange 7 to which is fixed a second socket outlet 7A.
  • the reference 8 designates a fixed blow piston.
  • the movable assembly comprises 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 crosses the flange 7 in leaktight manner.
  • This rod 12 is connected to a rod 13 forming part of the control which has been represented in FIG. 1 by the rectangle 14.
  • the control is fixed to the chassis 2 by means not shown; it is placed directly under the pole to be maneuvered.
  • FIG. 2 represents in axial section a control according to the invention, in the configuration corresponding to the circuit breaker engaged in normal operation.
  • the control comprises a metal frame 20, preferably cylindrical with an axis xx, which is rigidly fixed under the breaking chamber of the circuit breaker by means not shown.
  • a bottom 20A closes the cylinder 20.
  • the top of the frame includes a cover 21 provided with an orifice through which passes the operating rod 12 of the circuit breaker pole; to the rod 12 is connected a rod 13 provided at its end with a disc 24 serving to support a first spring 25, coaxial with the rod 13, and intended for the tripping operation of the circuit breaker; for this reason, the spring 25 is called a trigger spring.
  • Spring 25 is surrounded by a cylinder 26, coaxial with the rod 13 and of height substantially equal to that of the spring 25 when the latter is bandaged. The role of this cylinder will be explained later.
  • the spring is kept bandaged by at least one retractable stop 27 which can be operated by an opening coil 28 supplied by devices not shown for operating and / or protecting the circuit breaker.
  • a retractable stop 27 which can be operated by an opening coil 28 supplied by devices not shown for operating and / or protecting the circuit breaker.
  • the control includes a movable assembly comprising a cylinder 30 of axis xx secured to a disc 31 against which a first end of a second spring 32 is used, used for switching on the circuit breaker and for this reason called engagement spring.
  • the second end of the spring 32 bears on a bottom 33 of the frame 20.
  • the spring 32 is kept bandaged by at least one retractable stop 34 which can be operated by a closing coil 35 supplied by the operating and / or protection devices of the circuit breaker not shown.
  • the cylinder 30 is extended by a series of pivoting fingers 36, forming a corolla and which can be opened in the same way. These fingers, used to reset the trigger spring, are hereinafter called reset fingers.
  • Each finger 36 has, about a third of the length from the upper end, a hooking shoulder 37 directed towards the axis xx.
  • Each finger 36 articulated at point O at the end of the cylinder 30, is equipped with a spring 38 fixed by a first end to the finger itself and by its second end, to the cylinder 30.
  • This spring constitutes a passage device neutral or "tumbler", allowing the finger 36 to occupy two fixed positions on either side of the axis O of articulation of the finger.
  • the external part 39 of the foot of the finger cooperates with a fixed jacket 30A coaxial with the cylinder 30 to return the fingers from the open position to the reverse position, when the cylinder 30 reaches the low position.
  • the spring 32 When the spring 32 is relaxed, it can be bandaged again by a device comprising arms 40, parallel to the axis xx, regularly arranged around this axis, 2 or 3 for example.
  • the arms cross the bottom 33 through appropriate openings.
  • the arms At their upper end, the arms are joined by a horizontal crown 41.
  • the arms 40 At their other end, the arms 40 are fixed to a plate 42 (as a variant of the arms), to which the end of a threaded rod 43 is fixed, axis xx, which can be moved in translation along the axis xx by means of an electric motor 44, which can rotate in both directions.
  • the motor 44 and the rod 43 are housed in a cylindrical housing 45 integral with the bottom 33 and closed by a plate 46 provided with a hole 46 for the passage of the rod 43.
  • the cylinder 45 also serves as a guide for the cylinder 30.
  • the operation of the control is as follows.
  • the opening coil 28 When an opening order is given, the opening coil 28 is supplied and causes the stop 27 to be retracted which pivots in the direction of the arrow F1.
  • the trigger spring 25 relaxes, driving the circuit-breaker operating rod (Fig. 5). It can be seen that at the end of the race, the plate 24 rests on the shoulders of the fingers 36.
  • a closing order given 0.3 s after the opening of the circuit breaker, results in the supply of the closing coil 35, which causes the abutment 34 to retract which rotates in the direction of arrow F2.
  • the spring 32 relaxes, which causes the cylinder 30 to move.
  • the fingers 36 drive the disc 24, which causes the circuit breaker to engage as well as the compression of the trigger spring 25.
  • the normal position of the disc 24 is exceeded by a few millimeters, which allows the stop 27 to be put back in place.
  • the fingers 36 move apart (FIG. 4), releasing the disc 24 which falls back on its stop 27. Thanks to the spring 38, the fingers 36 remain in the open position. Following this engagement, the control has the configuration shown in Fig. 6. It is observed that at the end of the switching operation, the crown 31 comes into contact with the crown 41.
  • the spring 32 has a force greater than that of the spring 25 to ensure both the latching movement of the mobile assembly and the compression of the spring 25.
  • a second opening if the fault persists, can be carried out. It will be obtained as before by supplying the opening coil 28 which will cause the stop 27 to retract and the spring 25 to relax.
  • the circuit breaker must be able to be reset within a given time, for example 10 seconds.
  • the control of the invention allows it: at the end of the second opening of the circuit breaker, the motor 44 is started; it rotates the threaded rod 43 which drives the disc 42 and the arms 40.
  • the crown 41 drives the crown 31 and the cylinder 30 to which it is integral.
  • the spring 32 is compressed by this operation.
  • there is a slight overtravel of the rod 43 to allow the stop to be repositioned on the crown 31.
  • the motor 44 is stopped and at this time the configuration is that of FIG. 8.
  • the engine is immediately started, in the opposite direction to that which it had previously, to return the control to the configuration of FIG. 2, that is to say with the crown 41 in the high position.
  • the duration of 10 seconds to perform this maneuver is sufficiently long to authorize the use of a low power motor, for example of the order of 150 W.
  • the invention makes it possible to avoid the drawbacks mentioned in the preamble, in particular the difficulties created by the ratchet wheels.
  • the control is compact and perfectly revolutionary, which gives it a small footprint.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Breakers (AREA)
  • Circuit Breakers (AREA)
  • Fuses (AREA)
  • Keying Circuit Devices (AREA)
EP97400734A 1996-04-10 1997-04-01 Steuerung mit gradlinigen Federn für Hochspannungsleistungsschalter Expired - Lifetime EP0801406B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604451 1996-04-10
FR9604451A FR2747502B1 (fr) 1996-04-10 1996-04-10 Commande a ressorts rectilignes pour disjoncteur a haute tension

Publications (2)

Publication Number Publication Date
EP0801406A1 true EP0801406A1 (de) 1997-10-15
EP0801406B1 EP0801406B1 (de) 2001-12-19

Family

ID=9491055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400734A Expired - Lifetime EP0801406B1 (de) 1996-04-10 1997-04-01 Steuerung mit gradlinigen Federn für Hochspannungsleistungsschalter

Country Status (9)

Country Link
US (1) US5756952A (de)
EP (1) EP0801406B1 (de)
CN (1) CN1059049C (de)
AT (1) ATE211298T1 (de)
CA (1) CA2202294C (de)
DE (1) DE69709219T2 (de)
ES (1) ES2167689T3 (de)
FR (1) FR2747502B1 (de)
ID (1) ID16599A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778492A1 (fr) * 1998-05-11 1999-11-12 Alsthom Gec Commande a ressorts pour interrupteur de circuits
FR2779565A1 (fr) * 1998-06-08 1999-12-10 Alsthom Gec Perfectionnement a une commande a ressorts rectilignes pour disjoncteur a haute tension
WO2008046823A1 (fr) * 2006-10-18 2008-04-24 Areva T & D Sa Dispositif de commande d'un appareillage electrique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746540B1 (fr) * 1996-03-22 1998-04-24 Gec Alsthom T & D Sa Commande pour disjoncteur a haute tension
FR2793945B1 (fr) * 1999-05-17 2001-06-22 Alstom Sectionneur haute tension a contact mobile deplace a grande vitesse
US6927355B2 (en) * 2000-08-28 2005-08-09 Abb Ab Circuit breaker
FR2836277B1 (fr) 2002-02-19 2004-04-16 Alstom Mecanisme de commande a ressorts pour disjoncteur a mouvement rectiligne
US9397486B2 (en) * 2012-04-28 2016-07-19 Schneider Electric Industries Sas Subsea electrical distribution system having subsea busbar enclosure assembly pressurized with sulfur hexaflouride (SF6) gas
DE102020132224A1 (de) * 2020-12-03 2022-06-09 Eto Magnetic Gmbh Schnellschaltende Aktorvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221430A1 (de) * 1985-10-23 1987-05-13 Gec Alsthom Sa Betätigungsvorrichtung für einen Schalter und mit dieser Vorrichtung ausgestatteter Schalter
EP0660347A1 (de) * 1993-12-27 1995-06-28 Gec Alsthom T & D Sa Linearer Betätigungseinrichtung für Leistungsschalter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166326B (de) * 1954-12-24 1964-03-26 Westinghouse Electric Corp Elektrischer Schalter
US4162385A (en) * 1976-09-30 1979-07-24 Westinghouse Electric Corp. Dual spring circuit interrupter apparatus
US4414449A (en) * 1981-05-26 1983-11-08 Brown Boveri Electric Inc. Quick open and close disconnect switch
CH660256A5 (de) * 1983-01-25 1987-03-31 Sprecher Energie Ag Antriebsanordnung fuer einen hochspannungsschalter.
US5508487A (en) * 1994-03-30 1996-04-16 Abb Power T&D Company Inc. High voltage circuit interrupting device operating mechanism including trip latch assembly

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221430A1 (de) * 1985-10-23 1987-05-13 Gec Alsthom Sa Betätigungsvorrichtung für einen Schalter und mit dieser Vorrichtung ausgestatteter Schalter
EP0660347A1 (de) * 1993-12-27 1995-06-28 Gec Alsthom T & D Sa Linearer Betätigungseinrichtung für Leistungsschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778492A1 (fr) * 1998-05-11 1999-11-12 Alsthom Gec Commande a ressorts pour interrupteur de circuits
FR2779565A1 (fr) * 1998-06-08 1999-12-10 Alsthom Gec Perfectionnement a une commande a ressorts rectilignes pour disjoncteur a haute tension
WO2008046823A1 (fr) * 2006-10-18 2008-04-24 Areva T & D Sa Dispositif de commande d'un appareillage electrique
FR2907596A1 (fr) * 2006-10-18 2008-04-25 Areva T & D Sa Dispositif de commande d'un appareillage electrique
US8309871B2 (en) 2006-10-18 2012-11-13 Areva T&D Sa Apparatus for controlling electrical switchgear

Also Published As

Publication number Publication date
ID16599A (id) 1997-10-16
FR2747502A1 (fr) 1997-10-17
CA2202294C (fr) 2001-06-05
MX9702519A (es) 1998-06-30
ES2167689T3 (es) 2002-05-16
CA2202294A1 (fr) 1997-10-10
CN1059049C (zh) 2000-11-29
FR2747502B1 (fr) 1998-05-15
ATE211298T1 (de) 2002-01-15
DE69709219D1 (de) 2002-01-31
US5756952A (en) 1998-05-26
CN1168532A (zh) 1997-12-24
EP0801406B1 (de) 2001-12-19
DE69709219T2 (de) 2002-08-08

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