EP0460390A2 - Commande à accumulateur d'énergie à ressort pour interrupteur à haute tension - Google Patents

Commande à accumulateur d'énergie à ressort pour interrupteur à haute tension Download PDF

Info

Publication number
EP0460390A2
EP0460390A2 EP91106649A EP91106649A EP0460390A2 EP 0460390 A2 EP0460390 A2 EP 0460390A2 EP 91106649 A EP91106649 A EP 91106649A EP 91106649 A EP91106649 A EP 91106649A EP 0460390 A2 EP0460390 A2 EP 0460390A2
Authority
EP
European Patent Office
Prior art keywords
spring
cylinder
spring force
gear
piston unit
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.)
Ceased
Application number
EP91106649A
Other languages
German (de)
English (en)
Other versions
EP0460390A3 (en
Inventor
Max Kuhn
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.)
General Electric Switzerland GmbH
Original Assignee
GEC Alsthom T&D AG
Sprecher Energie AG
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 AG, Sprecher Energie AG filed Critical GEC Alsthom T&D AG
Publication of EP0460390A2 publication Critical patent/EP0460390A2/fr
Publication of EP0460390A3 publication Critical patent/EP0460390A3/de
Ceased legal-status Critical Current

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

Definitions

  • the present invention relates to a spring energy storage drive for a high-voltage switch according to the preamble of claim 1.
  • Such spring energy storage drives such as those described in "SPRECHER ENERGIE REVUE" No. 1/86 on pages 4 and 5, have spring-loaded energy stores that can be tensioned by means of an electric motor or by hand, in which the energy for switching on the high-voltage switch and for simultaneously tensioning one Switch-off spring memory is storable.
  • the high-voltage switch When the high-voltage switch is switched on and the spring-loaded accumulator and the spring-loaded spring accumulator are tensioned, the high-voltage switch can consequently be switched off, switched on and off again without the spring-loaded accumulator being recharged.
  • FIG. 1 shows, purely schematically, a spring energy storage drive according to the invention with a cylinder-piston unit for charging the spring energy storage with a single working stroke.
  • the spring energy storage drive 210 has a tensioning device 212 with a cylinder-piston unit 214 to tension a spring force accumulator formed by a spiral spring 216 in the course of a single working stroke in the direction of arrow A.
  • the energy supplied during a tensioning process of the spiral spring 216 is sufficiently large to switch on a high-voltage switch 218, which is only shown schematically, and to tension a switch-off spring 222 connected to the movable switching contact 220.
  • the inner end of the spiral spring 216 is fastened to a spring shaft 224, the axis of rotation of which is indicated by dash-dotted lines and designated 224 ', and its outer end is connected to a tab 226 of a spring cage 228.
  • the spring cage 228 is freely rotatable on the spring shaft 224, which in turn is rotatably mounted on a frame of the spring force drive 210, which is also not shown but is generally known.
  • a tension lever 230 and a gear 232 of a gear transmission 234 are further freely rotatably seated on the spring shaft 224 connected to the outer end of the coil spring 216, for example by means of a screw connection.
  • the gear 232 is connected to the tensioning lever 230 via a generally known freewheel, which is not shown in the figure and which is effective when the gear 232 is rotated counter to the direction of rotation B for tensioning the spiral spring 216.
  • a gear segment 236 meshes with the gear 232, which is arranged on a bearing shaft 238 that runs parallel to the axis of rotation 224 ′ and is also rotatably attached to the frame (not shown).
  • a crank 240 is integrally formed on the side of the gear segment 236, in the forked free end region of which the piston rod 242 of the cylinder-piston unit 214 engages, which is pivotally connected to the crank 240 via a pin 244.
  • the cylinder 246 of the cylinder-piston unit 214 is pivotally mounted on the frame of the spring-loaded energy-saving drive 210, which also runs parallel to the axis 224 ′, so that the cylinder-piston unit 214 executes a stroke in or against the direction of arrow A or the one rotating Crank 240 caused pivoting of the cylinder-piston unit 214 around the pivot pin 248 can follow. Furthermore, the bearing shaft 238 is wrapped by a return spring 250 which is supported on one end on the crank 240 and on the other end on a stationary pin 252 of the frame, not shown.
  • the return spring 250 ensures after the completion of a working stroke in the direction of arrow A that the piston rod 242, the crank 240 and the gear segment 236 are brought back into the lines with solid lines in the figure shown rest position.
  • the gear segment 236 and the crank 240 are pivoted in the direction of arrow C from the rest position into the working position indicated by dash-dotted lines.
  • the swivel angle around the bearing shaft 238 is approximately 120 degrees, but this swivel angle can also be larger or be chosen smaller.
  • the gear ratio of the gear transmission 234 is selected such that when a working stroke of the cylinder-piston unit 214 is carried out, the gear 232 is rotated through an angle of 360 °.
  • the single-acting cylinder-piston unit 214 is connected via a line 254 to a three-way valve 256, which connects the cylinder-piston unit 214 to a pressure accumulator 258 on the one hand to carry out a working stroke and, on the other hand, that to a low-pressure part 260 after the working stroke has been carried out.
  • the three-way valve 256 is connected to the pressure accumulator 258 via a high-pressure line 262 and to a low-pressure container 266 via a low-pressure line 264.
  • a hydraulic pump 270 which can be driven by an electric motor 268, is connected between the low-pressure container 266 and the pressure accumulator 258 in order to pump the hydraulic fluid, for example hydraulic oil, from the low-pressure container 266 into the generally known hydraulic pressure accumulator 258.
  • a check valve 272 prevents the high-pressure hydraulic fluid from flowing back to the hydraulic pump 270 and to the low-pressure container 70.
  • the pressure accumulator 258 is connected in terms of flow to an excess pressure valve 274, which opens when the pressure is too high and which Hydraulic fluid can flow back into the low pressure reservoir 266 until the pressure in the pressure accumulator 258 has dropped to the desired value.
  • a pressure relay 276 Also connected to the pressure accumulator 258 is a pressure relay 276, the switch contacts of which 278 when the pressure in the pressure accumulator 258 drops below a lower limit and open when an upper limit is reached.
  • This pressure relay 276 controls the excitation coil 280 of a switch 282, by means of which the electric motor 268 can be switched on or off.
  • a ratchet lever 284 is connected in a rotationally fixed manner to the spring shaft 224 and is releasably supported on a ratchet pawl 286.
  • the switch pawl 286 can be pivoted clockwise from the support position shown in the figure into a release position.
  • the radial running surface 292 of the cam disc 290 interacts with a roller 294 which is freely rotatably mounted on a roller lever 298 which is fixedly connected to a roller lever shaft 296.
  • the roller lever shaft 296 is also rotatably mounted on the frame (not shown) of the spring energy storage drive 210 and its axis 296 'runs parallel to the axis of rotation 224' of the spring shaft 224.
  • the cam disc 290 is designed such that the roller lever 298 is rotated 360 in the direction of arrow D when the cam disc 290 is rotated ° is pivoted counterclockwise from the switch-off position shown in solid lines in the figure to the switch-on position 298 'indicated by dashed lines.
  • the running surface 292 extends a little less than 360 ° Celsius so that the roller lever shaft 296 with the roller lever 298 and the roller 294 are pivoted back past the flank 300 of the cam plate 290 into the switch-off position can without the roller 294 touching the cam disc 290.
  • a turn-off ratchet lever 302 sits on the roller lever shaft 296 in a rotationally fixed manner and on the other side a transmission lever 304.
  • the turn-off ratchet lever 302 is shown in solid lines and denoted by 0 in the off position.
  • the roller lever 298 When the roller lever 298 is brought into the switch-on position 298 ', it also pivots counterclockwise into the switch-on position shown in dash-dotted lines and designated by I.
  • the release pawl lever 302 In the switched-on position I, the release pawl lever 302 is releasably supported on a release pawl 306, which can be pivoted from the illustrated position into a release position by means of an electrically controllable deactivation magnet system 308.
  • the transmission lever 304 is operatively connected to the movable switch contact 220 of the high-voltage switch 218 and to the switch-off spring 222 via a transmission system 310, which is only indicated schematically.
  • a control element 312 which controls the three-way valve 256 as a function of the tension state of the spiral spring 216 has a control shaft 314 which runs parallel to the shaft 224 and on which three single-arm levers 316, 318 and 320 are arranged.
  • the lever 316 acts on the three-way valve 256 via a connection 322 indicated by a dot-dash line.
  • the three-way valve 256 is switched in such a way that it connects the cylinder-piston unit 214 to the low-pressure container 266. In the dash-dotted line, counterclockwise by approx.
  • the three-way valve 256 is switched so that the pressure accumulator 258 is connected to the flow with the cylinder-piston unit 214.
  • the free end of the lever 318 bears against a tongue 324 protruding outward from the spring shaft 224 in the radial direction.
  • the lever 318 is thus pivoted into the position indicated by dash-dotted lines, which results in a changeover of the three-way valve 256.
  • the lever 320 is pivoted into the path of a bolt 326 arranged on the spring cage 228.
  • the control member 312 further controls a schematically indicated auxiliary switch 328 via the connection 322 in order to report the position of the control member 312 and thus also the tensioned state of the coil spring 216, for example to a central control room, in order to monitor the spring force storage drive 210.
  • a schematically indicated auxiliary switch 328 can also be used to control an electrically actuated three-way valve (instead of the mechanically operated three-way valve 256).
  • a ring gear 228 ' is formed around that via a gear 330 with a generally known only schematically shown and supported on the frame Backstop 332 to connect.
  • the backstop 332 prevents the spring cage 228 from rotating in the opposite direction of the arrow B '.
  • a hand crank 334 can be coupled to a shaft 330 'of the transmission 330 in order to be able to tension the coil spring 216 by hand in an emergency.
  • the storage drive 10 works as follows. In the state shown in the figure, the high-voltage switch 218 is switched off, the switch-off spring 222 is relaxed and the coil spring 216 is tensioned. Relaxation of the spiral spring 216 is prevented by supporting the spring cage 228 via the gear 330 on the return lock 332 and supporting the spring shaft 224 by means of the latch lever 284 on the latch 286. If the high-voltage switch 218 is now to be switched on, the switch-on magnet system 288 is excited, as a result of which the switch pawl 286 releases the switch pawl lever 284.
  • the spring shaft 224 now rotates under the force of the tensioned coil spring 216 in the direction of arrow D, whereby the roller 294 comes to rest against the running surface 292 of the cam disc 290 and the roller lever 298 with the roller lever shaft 296 in the course of one revolution of the cam disc 290 by approximately 60 ° is pivoted into the on position I.
  • the high-voltage switch 218 is switched on and the switch-off spring 222 is simultaneously tensioned.
  • the switch-off pawl lever 302 latches on the switch-off pawl 306, so that the high-voltage switch 218 remains switched on, even if the running surface 292 of the cam disk 290 runs off the roller 294.
  • the ratchet lever 284 comes back to the ratchet 286 to the system, so that the cam disc 290 can continue to rotate neither due to the inertia nor due to a remaining preload of the spiral spring 216.
  • the lever 318 is pivoted into the position shown in broken lines by means of the tongue 324, with the result that the three-way valve 256 is switched over.
  • the cylinder-piston unit 214 is fluidly connected to the pressure accumulator 258.
  • the piston rod 242 executes a working stroke in the direction of arrow A, which results in the gearwheel segment 236 being pivoted into the position indicated by dash-dotted lines.
  • the gear 232 is rotated through 360 ° in the direction of arrow B.
  • crank 240 Under the force of the return spring 250, the crank 240 is pivoted back together with the gear segment 236 from the position indicated by dash-dotted lines to the rest position shown in solid lines and the piston rod 242 moves downward in the direction of arrow A.
  • a corresponding movement of the spring cage 228 in the direction of the arrow B ' is prevented by the now active backstop 232 and the gear 232 is decoupled from the tension lever 230 by the freewheel which is active in the direction of the arrow B.
  • the switch-off magnet system 308 is excited so that the switch-off pawl 306 releases the switch-off pawl lever 302.
  • the high-voltage switch 218 is opened and the roller lever shaft 296, together with the roller lever 298 and the switch-off pawl lever 302, is pivoted back into the position denoted by O and shown in solid lines in the figure.
  • the spring force storage drive 210 and high-voltage switch 218 are now in the starting position shown in the figure. A few seconds are usually required for tensioning the spiral spring 216, whereas the high-voltage switch 218 is switched on within fractions of a second and the high-voltage switch 218 is switched off in a time of approximately 0.05 seconds.
  • the coil spring 216 when the coil spring 216 is tensioned and the high-voltage switch 218 is switched on, it can be switched off by the energy stored in the switch-off spring 222, switched on again by means of the coil spring 216, and switched off again. Since a local pressure accumulator 258 is now provided, the spiral spring 216 can be tensioned again immediately even if the electrical supply for the spring force accumulator drive 210 fails, which enables the high-voltage switch 218 to be switched on and off again. However, the energy stored in the pressure accumulator 258 is preferably so great that the spiral spring 216 can be tensioned several times.
  • the switch contact 278 is closed.
  • the activation of the excitation coil 280 caused thereby closes the switch 282, after which the electric motor 268 now drives the hydraulic pump 270 until a pressure is reached in the pressure accumulator 258 which corresponds to the upper pressure value set in the pressure relay 276.
  • the switch contact 278 is opened again, which results in the opening of the switch 282 and thus the electric motor 268 being switched off.
  • the check valve 272 prevents the hydraulic accumulator 258 from being emptied by the hydraulic pump 270 into the low-pressure container 266 when the hydraulic pump 270 is switched off.
  • the pressure relief valve 274 responds in order to avoid damage caused by excessive pressure.
  • the hydraulic system is designed such that the coil spring 216 can be tensioned again even if the pressure in the pressure accumulator 258 has dropped to such an extent that the pressure relay 276 responds, but the failure of the electrical supply network causes hydraulic oil to be pumped from the low-pressure container 266 into the pressure accumulator 258 prevented.
  • the tensioning device 212 can be operated with a low-viscosity fluid in order to ensure that the spring force storage drive 210 functions reliably and reliably both at very low and at very high temperatures.
  • the coil spring 216 can be tensioned by hand using the hand crank 334.
  • a high-voltage switch can be driven with one or more poles by means of a spring energy storage drive 210. It is of course also possible to design the transmission system for tensioning the spiral spring 216 by means of a single stroke of the cylinder-piston unit 214 differently than that set out above. Of course, it is also conceivable to equip differently designed spring energy storage drives by means of a tensioning device according to the invention.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP19910106649 1990-06-08 1991-04-25 Spring energy accumulator drive for a high voltage switch Ceased EP0460390A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH192990 1990-06-08
CH1929/90 1990-06-08

Publications (2)

Publication Number Publication Date
EP0460390A2 true EP0460390A2 (fr) 1991-12-11
EP0460390A3 EP0460390A3 (en) 1992-07-22

Family

ID=4221891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910106649 Ceased EP0460390A3 (en) 1990-06-08 1991-04-25 Spring energy accumulator drive for a high voltage switch

Country Status (3)

Country Link
EP (1) EP0460390A3 (fr)
JP (1) JPH04248217A (fr)
CA (1) CA2041338C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931864A (zh) * 2016-06-07 2016-09-07 徐洪军 一种气动高压开关
CN107731624A (zh) * 2016-08-21 2018-02-23 刘检军 一种高压真空断路器
CN111108573A (zh) * 2017-09-22 2020-05-05 西门子股份公司 用于张紧弹簧蓄能器驱动器的蓄能弹簧的张紧传动机构
CN112727815A (zh) * 2021-01-04 2021-04-30 宁波市巴克蓄能器技术有限公司 一种新型的蓄能器

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101777442B (zh) * 2009-12-24 2012-01-11 黄勤飞 用于涡簧式操作装置中的制动机构
CN101783253B (zh) * 2009-12-24 2012-07-11 黄勤飞 涡簧式操作装置
CN101783255B (zh) * 2009-12-24 2012-07-11 黄勤飞 一种高压操作机构

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1108630A (fr) * 1954-04-30 1956-01-16 Elettromeccaniche Galileo Di B Servo-commande hydroélectrique à accumulation d'énergie, convenant particulièrement à la fermeture des interrupteurs électriques
CH379865A (de) * 1958-11-22 1964-07-15 Asea Ab Hydraulische Spannvorrichtung an Federantrieb
EP0320614B1 (fr) * 1987-12-14 1992-09-09 Sprecher Energie AG Commande à accumulateur d'énergie à ressort pour interrupteur à haute tension

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105931864A (zh) * 2016-06-07 2016-09-07 徐洪军 一种气动高压开关
CN105931864B (zh) * 2016-06-07 2017-11-14 大唐阳城发电有限责任公司 一种气动高压开关
CN107731624A (zh) * 2016-08-21 2018-02-23 刘检军 一种高压真空断路器
CN107731624B (zh) * 2016-08-21 2018-12-21 绍兴伟乐服饰有限公司 一种高压真空断路器
CN111108573A (zh) * 2017-09-22 2020-05-05 西门子股份公司 用于张紧弹簧蓄能器驱动器的蓄能弹簧的张紧传动机构
US11342136B2 (en) 2017-09-22 2022-05-24 Siemens Energy Global GmbH & Co. KG Tensioning mechanism for clamping a pre-loaded spring of a spring-loaded accumulator drive
CN111108573B (zh) * 2017-09-22 2023-09-01 西门子能源全球有限公司 用于张紧弹簧蓄能器驱动器的蓄能弹簧的张紧传动机构
CN112727815A (zh) * 2021-01-04 2021-04-30 宁波市巴克蓄能器技术有限公司 一种新型的蓄能器

Also Published As

Publication number Publication date
CA2041338C (fr) 2001-07-10
EP0460390A3 (en) 1992-07-22
JPH04248217A (ja) 1992-09-03
CA2041338A1 (fr) 1991-12-09

Similar Documents

Publication Publication Date Title
EP0320614B1 (fr) Commande à accumulateur d'énergie à ressort pour interrupteur à haute tension
DE60115537T2 (de) Schwimmbecken mit automatischer Schwimmbeckenabdeckungsanordnung und Verfahren zum Betrieb einer Schwimmbeckenabdeckung
EP1944130B1 (fr) Dispositif d'enfoncement à main
DE3839317C2 (de) Elektromotorischer Antrieb für ein Stellglied
EP0460390A2 (fr) Commande à accumulateur d'énergie à ressort pour interrupteur à haute tension
DE7433038U (de) Einrichtung zur intermittierenden drehung einer welle, insbesondere einer turbinenwelle
DE2836381C2 (de) Anlage zur Fernsteuerung eines Absperrventils für Rohrleitungen
DE3006468A1 (de) Einrichtung zur druckregelung fuer einen druckspeicher
DE2450678A1 (de) Steuereinrichtung fuer einen antrieb, insbesondere fuer einen aufzug- oder hebezeugantrieb
DE2350821B2 (de) Hydraulische Antriebseinrichtung für den Hubarm eines Karussells
DE102009021668B4 (de) Stellanordnung, Schaltantrieb für eine derartige Stellanordnung und Ventilanordnung für eine derartige Stellanordnung
EP3880595B1 (fr) Actionneur électromécanique pour actionner un frein d'un système d'ascenseur
DE3533179A1 (de) Antriebsvorrichtung fuer einen leistungsschalter mit einem klinkenrad
DE693932C (de) Schalter mit Vorrichtung zur Ausloeschung des Schaltlichtbogens durch eine ihn bespuelende Loeschmittelstroemung
EP0847065B1 (fr) Système d'entraínement pour un interrupteur
DE4304544C2 (de) Antriebseinrichtung für einen elektrischen Leistungsschalter
DE1752332C3 (de) Einzelhub-Sicherheitseinrichtung für Pressen
DE2518599C2 (de) Motor-Speicherantrieb mit Klinkenrad für Leistungsschalter
DE2200332C3 (de) Federspeicherantrieb für Hochspannungs-Leistungsschalter
DE60024788T2 (de) Nockenaktiviertes hydraulisches Bremssystem
CH664643A5 (de) Betaetigungsvorrichtung fuer elektrische einrichtungen.
DE2637200C2 (de) Einrichtung zur Schnellentleerung eines Flugzeug-Kraftstofftanks
AT211181B (de) Sperrvorrichtung, insbesondere für Benzinzapfsäulen mit Rechenwerk (Mengenanzeigewerk)
DE2011011A1 (de) Ventil Betätigungseinrichtung
DE237149C (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19921130

17Q First examination report despatched

Effective date: 19940307

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: GEC ALSTHOM T&D AG

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19950519