EP0162212B1 - Driving device for a switch - Google Patents

Driving device for a switch Download PDF

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Publication number
EP0162212B1
EP0162212B1 EP85102808A EP85102808A EP0162212B1 EP 0162212 B1 EP0162212 B1 EP 0162212B1 EP 85102808 A EP85102808 A EP 85102808A EP 85102808 A EP85102808 A EP 85102808A EP 0162212 B1 EP0162212 B1 EP 0162212B1
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EP
European Patent Office
Prior art keywords
drive
shaft
switch
motor
drive motor
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
Application number
EP85102808A
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German (de)
French (fr)
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EP0162212A1 (en
Inventor
Walter Hahn
Gerhard Körner
Horst Plettner
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.)
ASEA BROWN BOVERI AKTIENGESELLSCHAFT
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ASEA BROWN BOVERI AG
Asea Brown Boveri AG Germany
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Publication of EP0162212A1 publication Critical patent/EP0162212A1/en
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    • 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

Definitions

  • the invention relates to a drive for a switch according to the preamble of claim 1.
  • Disconnectors or isolators for short, are switches for the almost currentless opening and closing of a current path by creating a reliably recognizable isolating path when opening a disconnector, as is required in medium and high-voltage switchgear. Separators are only arbitrary, i. H. not activated automatically.
  • a motor drive of the type mentioned is known from DE-B-1 005 156.
  • an external voltage-dependent control circuit arrangement is provided, which switches off the current of the drive motor and switches on the electromagnetic clutch as a function of the flywheel mass speed.
  • the invention is based on the object of specifying a drive for a switch of the type mentioned at the outset with which a switching operation which has been initiated is carried out safely.
  • the advantages achieved by the invention consist in particular in that once the switching operation has been initiated, a switching operation which has been initiated is completed, so that the switch reliably reaches its defined end position "on” or "off". An undefined intermediate position of the switch, in which the contact pieces may be damaged by a standing arc, is therefore excluded. This succeeds because not only the switch is supplied with drive energy from the energy store, but that this is also used to generate a separate voltage supply for controlling the switch, namely by switching the drive motor connected to the energy store from motor to generator operation.
  • the switch has a higher functional reliability due to the self-sufficient power supply of its drive.
  • the storage drive is a separate component that can be used in a disconnector instead of a conventional drive. Furthermore, the storage drive is also suitable for actuating earthing switches.
  • FIG. 1 shows a storage drive 1 for a disconnector 2, with a drive motor 3, a flywheel storage 4, an electromagnetic clutch 5, an electromagnetic locking brake 6, a transmission 7 and a centrifugal switch 8.
  • Storage drive 1 and disconnector 2 are connected to an electrical control 9.
  • the structure of the storage drive is first described with reference to FIG. 2. A detailed functional description is given below using a circuit diagram according to FIG. 3.
  • Drive motor 3 and flywheel storage 4 are rigidly connected to one another via a shaft 10. Between the drive motor 3 and the flywheel accumulator 4, a pinion 11 sits loosely on the shaft 10 via ball bearings 12.
  • the electromagnetic clutch 5 acts on the two end faces of the pinion 11, or the electromagnetic locking brake 6 on the other hand.
  • the pinion 11 is located on the end faces each a clutch ring 13, 14 attached via leaf springs 15 so that for coupling or locking the coupling rings 13, 14 react resiliently in the axial direction, while they react rigidly to transmit the torque or to lock the pinion 11 in the direction of rotation.
  • annular metal hood 17 is slidably rotatably arranged and fixed on the shaft 10.
  • Metal hood 17 and locking brake 6 have on the end faces friction linings 18 and 19 which adjust themselves and thus ensure a safe transmission of the torque from the shaft 10 to the pinion 11.
  • the pinion 11 is in engagement with a gearwheel 20 which is fastened on a selector shaft 21 of the isolator.
  • the mode of operation of the storage drive 1 is described with the aid of a circuit diagram according to FIG. 3.
  • the circuit diagram shows the idle state of the circuit.
  • Contactor E responds via the "On" command Contact E 13/14 goes into self-retention.
  • the opening contact E 21/22 ensures that the device is switched off during charging.
  • the contacts E 33/34 - E 43/44 close so that the drive motor is via (+) mains, F 21/22, E 33/34, drive motor 3, E 43/44, F 31/32 and (-) mains 3 starts and the flywheel storage 4 is charged.
  • the locking brake 6 is thus released via the closing contact F 43/44.
  • the locking brake 6 consists of a permanent magnet 25 and a winding 26, the electromagnetic field of which is directed so that when the winding 26 is excited, the magnetic field of the permanent magnet 25 is neutralized, so that the locking brake 6 releases the pinion 11.
  • the clutch 5, which establishes the frictional connection to the transmission 7, is actuated via the magnet coil 16 excited at the same time. The switching process of the disconnector 2 is running.
  • the memory drive 1 is switched off from the external voltage supply via the opening contacts F 21/22 and F 31/32, and the motor is switched to generator operation.
  • Contactor E remains in the generator circuit via closed contacts E33 / 34, E13 / 14, A21 / 22, limit switch 22 and contact E 43/44. Because of the non-intermittent generator operation, the arrangement is self-sufficient even during the critical switchover phase.
  • the open contact F 31/32 also prevents counter commands that could be given via the external voltage during the phase-out phase of the flywheel memory 4.
  • the associated limit switch 22 opens "on", so that the contactor E drops out. Since the contacts E 33/34 - E 43/44 open, the generator is disconnected at all poles, the electromagnetic clutch 5 interrupts the connection from the flywheel storage 4 to the transmission 7, and the locking brake 6 simultaneously fixes the disconnector 2 in its end position.
  • contactor F remains locked in the generator circuit. Because of the open contacts F 21/22 and F 31/32, this means that this circuit is self-locking and does not accept a counter command as long as the generator is still running at a critical speed.
  • the generator and thus the flywheel memory 4 are braked via the contacts E51 / 52 and A51 / 52, so that the drive 1 is ready for operation again within a short time.
  • FIG. 4 shows a speed diagram, on the ordinate axis of which the speed n or voltage U is plotted, while the abscissa axis represents the time t.
  • a relatively steep kinetic charge of the flywheel accumulator 4 can be seen from curve 25, starting at the coordinate origin.
  • the centrifugal switch 8 responds, and on the now falling branch 27 of the curve, the discharge process of the flywheel storage 4 extends over the useful area between points 26 and 28, the separator 2 having reached its end position at point 28.
  • the falling branch of the curve which goes beyond point 28 contains the remaining, unusable kinetic energy which is dissipated via the braking resistor 24.

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  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

Die Erfindung betrifft einen Antrieb für einen Schalter gemäß dem Oberbegriff des Anspruches 1.The invention relates to a drive for a switch according to the preamble of claim 1.

Trennschalter, kurz Trenner genannt, sind Schalter zum annähernd stromlosen Öffnen und Schließen eines Strompfades, indem beim Öffnen eines Trenners eine zuverlässig erkennbare Trennstrecke hergestellt wird, wie sie in Mittel- und Hochspannungsschaltanlagen erforderlich ist. Trenner werden nur willkürlich, d. h. nicht automatisch betätigt.Disconnectors, or isolators for short, are switches for the almost currentless opening and closing of a current path by creating a reliably recognizable isolating path when opening a disconnector, as is required in medium and high-voltage switchgear. Separators are only arbitrary, i. H. not activated automatically.

Im Zuge der Einführung elektrischer Betriebsmittel steigender Leistung als auch neuartiger Verfahren der Netzbetriebsweise werden qualitativ neue Anforderungen an die Betriebsmittel in der Energieübertragung und -verteilung gestellt.In the course of the introduction of electrical equipment with increasing performance as well as new methods of network operation, qualitatively new demands are placed on the equipment in energy transmission and distribution.

Ein Motorantrieb der eingangs genannten Art ist aus der DE-B-1 005 156 bekannt. Bei diesem ist eine fremdspannungsabhängige Steuerschaltungsanordnung vorgesehen, die in Abhängigkeit von der Schwungmassendrehzahl den Strom des Antriebsmotors ab- und die elektromagnetische Kupplung einschaltet.A motor drive of the type mentioned is known from DE-B-1 005 156. In this, an external voltage-dependent control circuit arrangement is provided, which switches off the current of the drive motor and switches on the electromagnetic clutch as a function of the flywheel mass speed.

Hierbei ist nicht erkennbar sichergestellt, daß bei Ausfall der Netzspannung während eines eingeleiteten Schaltvorganges, der Trennschalter seine Endstellung erreicht.It is not noticeably ensured here that if the mains voltage fails during an initiated switching process, the disconnector reaches its end position.

Der Erfindung liegt die Aufgabe zugrunde, für einen Schalter der eingangs genannten Art einen Antrieb anzugeben, mit dem ein einmal eingeleiteter Schaltvorgang sicher ausgeführt wird.The invention is based on the object of specifying a drive for a switch of the type mentioned at the outset with which a switching operation which has been initiated is carried out safely.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale gelöst.This object is achieved by the features characterized in claim 1.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß mit dem als Speicherantrieb ausgebildeten Antrieb ein einmal eingeleiteter Schaltvorgang zu Ende geführt wird, so daß der Schalter seine definierte Endstellung "Ein" oder "Aus" sicher erreicht. Eine undefinierte Zwischenstellung des Schalters, bei der unter Umständen durch einen stehenden Lichtbogen die Kontaktstücke beschädigt werden, ist damit ausgeschlossen. Dies gelingt deshalb, da aus dem Energiespeicher nicht nur der Schalter mit Antriebsenergie versorgt wird, sondern daß dieser zusätzlich zur Erzeugung einer separaten Spannungsversorgung für die Steuerung des Schalters genutzt wird, nämlich durch Umschaltung des mit dem Energiespeicher verbundenen Antriebsmotors von Motor- auf Generatorbetrieb.The advantages achieved by the invention consist in particular in that once the switching operation has been initiated, a switching operation which has been initiated is completed, so that the switch reliably reaches its defined end position "on" or "off". An undefined intermediate position of the switch, in which the contact pieces may be damaged by a standing arc, is therefore excluded. This succeeds because not only the switch is supplied with drive energy from the energy store, but that this is also used to generate a separate voltage supply for controlling the switch, namely by switching the drive motor connected to the energy store from motor to generator operation.

Insgesamt weist der Schalter durch die autarke Stromversorgung seines Antriebes eine höhere Funktionssicherheit auf.Overall, the switch has a higher functional reliability due to the self-sufficient power supply of its drive.

Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen gekennzeichnet.Advantageous embodiments of the invention are characterized in the dependent claims.

Der Speicherantrieb ist ein separates Bauteil, das anstelle eines üblichen Antriebs in einem Trennschalter verwendet werden kann. Desweiteren ist der Speicherantrieb auch für die Betätigung von Erdungsschaltern geeignet.The storage drive is a separate component that can be used in a disconnector instead of a conventional drive. Furthermore, the storage drive is also suitable for actuating earthing switches.

Die Erfindung wird nachstehend anhand einer in der Zeichnung dargestellten Ausführungsform erläutert.The invention is explained below with reference to an embodiment shown in the drawing.

Es zeigt:

  • Fig. 1 im Prinzip Aufbau und Steuerung eines Speicherantriebs mit Schwungradspeicher für einen Trenner,
  • Fig. 2 in schematischer Darstellung die Anordnung einer Kupplung zwischen Antriebsmotor mit Schwungradspeicher und Abtrieb für einen Trenner nach Fig. 1,
  • Fig. 3 einen Stromlaufplan zur Steuerung eines Speicherantriebs für einen Trenner nach Fig. 1,
  • Fig. 4 ein Diagramm über den Drehzahlverlauf während des Ladens bzw. Entladens des Schwungradspeichers.
It shows:
  • 1 in principle construction and control of a storage drive with flywheel storage for a disconnector,
  • 2 shows a schematic representation of the arrangement of a clutch between the drive motor with flywheel accumulator and output for a disconnector according to FIG. 1,
  • 3 shows a circuit diagram for controlling a storage drive for a disconnector according to FIG. 1,
  • Fig. 4 is a diagram of the speed curve during loading or unloading of the flywheel memory.

Der Figur 1 ist ein Speicherantrieb 1 für einen Trenner 2 zu entnehmen, mit einem Antriebsmotor 3, einen Schwungradspeicher 4, einer elektromagnetischen Kupplung 5, einer elektromagnetischen Arretierbremse 6, einem Getriebe 7 sowie mit einem Fliehkraftschalter 8.FIG. 1 shows a storage drive 1 for a disconnector 2, with a drive motor 3, a flywheel storage 4, an electromagnetic clutch 5, an electromagnetic locking brake 6, a transmission 7 and a centrifugal switch 8.

Speicherantrieb 1 und Trenner 2 sind mit einer elektrischen Steuerung 9 verbunden. Es wird zunächst der Aufbau des Speicherantriebs anhand der Fig. 2 beschrieben. Eine genaue Funktionsbeschreibung erfolgt weiter unten anhand eines Stromlaufplanes nach Fig. 3.Storage drive 1 and disconnector 2 are connected to an electrical control 9. The structure of the storage drive is first described with reference to FIG. 2. A detailed functional description is given below using a circuit diagram according to FIG. 3.

Antriebsmotor 3 und Schwungradspeicher 4 sind über eine Welle 10 starr miteinander verbunden. Zwischen Antriebsmotor 3 und Schwungradspeicher 4 sitzt ein Ritzel 11 über Kugellager 12 lose auf der Welle 10. Auf die beiden Stirnseiten des Ritzels 11 wirkt zum einen die elektromagnetische Kupplung 5, oder zum anderen die elektromagnetische Arretierbremse 6. Hierzu ist an den Stirnseiten des Ritzels 11 jeweils ein Kupplungsring 13, 14 über Blattfedern 15 so befestigt, daß zum Kuppeln bzw. Arretieren die Kupplungsringe 13, 14 in axialer Richtung federnd reagieren, während sie zur Übertragung des Drehmoments bzw. zur Arretierung des Ritzels 11 in Drehrichtung starr reagieren.Drive motor 3 and flywheel storage 4 are rigidly connected to one another via a shaft 10. Between the drive motor 3 and the flywheel accumulator 4, a pinion 11 sits loosely on the shaft 10 via ball bearings 12. The electromagnetic clutch 5 acts on the two end faces of the pinion 11, or the electromagnetic locking brake 6 on the other hand. For this purpose, the pinion 11 is located on the end faces each a clutch ring 13, 14 attached via leaf springs 15 so that for coupling or locking the coupling rings 13, 14 react resiliently in the axial direction, while they react rigidly to transmit the torque or to lock the pinion 11 in the direction of rotation.

Auf der ringförmigen Magnetspule 16 der elektromagnetischen Kupplung 5 ist eine kreisringförmige Metallhaube 17 gleitend drehbar angeordnet und auf der Welle 10 befestigt. Metallhaube 17 und Arretierbremse 6 weisen an den Stirnseiten Reibbeläge 18 und 19 auf, die sich selbst nachstellen, und so für eine sichere Übertragung des Drehmoments von der Welle 10 auf das Ritzel 11 sorgen. Das Ritzel 11 steht mit einem Zahnrad 20 in Eingriff, das auf einer Schaltwelle 21 des Trenners befestigt ist.On the annular magnetic coil 16 of the electromagnetic clutch 5, an annular metal hood 17 is slidably rotatably arranged and fixed on the shaft 10. Metal hood 17 and locking brake 6 have on the end faces friction linings 18 and 19 which adjust themselves and thus ensure a safe transmission of the torque from the shaft 10 to the pinion 11. The pinion 11 is in engagement with a gearwheel 20 which is fastened on a selector shaft 21 of the isolator.

Anhand eines Stromlaufplanes nach Fig. 3 wird die Funtkionsweise des Speicherantriebs 1 beschrieben. Der Stromlaufplan zeigt den Ruhezustand der Schaltung. Über den Befehl "Ein" spricht das Schütz E an, das über den Kontakt E 13/14 in Selbsthaltung geht. Über den sich öffnenden Kontakt E 21/22 ist eine Ausschaltverriegelung während des Ladens gewährleistet. Die Kontakte E 33/34 - E 43/44 schließen, so daß über (+) Netz, F 21/22, E 33/34, Antriebsmotor 3, E 43/44, F 31/32 und (-) Netz der Antriebsmotor 3 anläuft und die Aufladung des schwungradspeichers 4 erfolgt.The mode of operation of the storage drive 1 is described with the aid of a circuit diagram according to FIG. 3. The circuit diagram shows the idle state of the circuit. Contactor E responds via the "On" command Contact E 13/14 goes into self-retention. The opening contact E 21/22 ensures that the device is switched off during charging. The contacts E 33/34 - E 43/44 close so that the drive motor is via (+) mains, F 21/22, E 33/34, drive motor 3, E 43/44, F 31/32 and (-) mains 3 starts and the flywheel storage 4 is charged.

Bei Spannungsausfall vor Erreichen der Auslösedrehzahl fällt das Schütz E wieder ab und der Schwungradspeicher 4 läuft aus. Die Schaltung ist wieder in Ruhestellung. Bei Wiederkehr der Spannung kann keinerlei Auslösung des Trenners 2 erfolgen, und es kann desweiteren wegen des offenen Endschalters 23 keine entgegengesetzte Drehrichtung auf den auslaufenden Schwungradspeicher 4 geschaltet werden.In the event of a power failure before reaching the tripping speed, the contactor E drops out again and the flywheel memory 4 runs out. The circuit is at rest again. When the voltage returns, no disconnection of the isolator 2 can take place, and furthermore, because of the open limit switch 23, no opposite direction of rotation can be switched to the leaking flywheel accumulator 4.

Sobald die Auslösedrehzahl erreicht ist, schließt der Fliehkraftschalter 8, und das Auslöseschütz F geht über Kontakt F 13/14 in Selbsthaltung. Damit wird über den sich schließenden Kontakt F 43/44 die Arretierbremse 6 gelöst. Die Arretierbremse 6 besteht aus einem Permanentmagneten 25 und einer Wicklung 26, deren elektromagnetisches Feld so gerichtet ist, daß bei erregter Wicklung 26 das Magnetfeld des Permanentmagneten 25 neutralisiert wird, so daß die Arretierbremse 6 das Ritzel 11 freigibt. Über die gleichzeitig erregte Magnetspule 16 wird die Kupplung 5 betätigt, die den Kraftschluß zum Getriebe 7 herstellt. Der Schaltvorgang des Trenners 2 läuft.As soon as the release speed has been reached, the centrifugal switch 8 closes and the release contactor F latches via contact F 13/14. The locking brake 6 is thus released via the closing contact F 43/44. The locking brake 6 consists of a permanent magnet 25 and a winding 26, the electromagnetic field of which is directed so that when the winding 26 is excited, the magnetic field of the permanent magnet 25 is neutralized, so that the locking brake 6 releases the pinion 11. The clutch 5, which establishes the frictional connection to the transmission 7, is actuated via the magnet coil 16 excited at the same time. The switching process of the disconnector 2 is running.

Über die sich öffnenden Kontakte F 21/22 und F 31/32 wird der Speicherantrieb 1 von der äußeren Spannungsversorgung abgeschaltet, und es erfolgt Umschaltung von Motor- auf Generatorbetrieb. Das Schütz E hält sich weiter im Generatorkreis über die geschlossenen Kontakte E33/34, E13/14, A21/22, Endschalter 22 und Kontakt E 43/44. Wegen des nichtlückenden Generatorbetriebs ist die Anordnung auch während der kritischen Umschaltphase autark. Der geöffnete Kontakt F 31/32 verhindert auch solche Gegenbefehle, die während der Auslaufphase des Schwungradspeichers 4 über die äußere Spannung gegeben werden könnten.The memory drive 1 is switched off from the external voltage supply via the opening contacts F 21/22 and F 31/32, and the motor is switched to generator operation. Contactor E remains in the generator circuit via closed contacts E33 / 34, E13 / 14, A21 / 22, limit switch 22 and contact E 43/44. Because of the non-intermittent generator operation, the arrangement is self-sufficient even during the critical switchover phase. The open contact F 31/32 also prevents counter commands that could be given via the external voltage during the phase-out phase of the flywheel memory 4.

Sobald der Trenner 2 in die Endstellung eingefahren ist, öffnet der zugehörige Endschalter 22 "Ein", so daß das Schütz E abfällt. Da die Kontakte E 33/34 - E 43/44 öffnen, wird der Generator allpolig abgetrennt, die elektromagnetische Kupplung 5 unterbricht die Verbindung vom Schwungradspeicher 4 zum Getriebe 7, und die Arretierbremse 6 fixiert gleichzeitig den Trenner 2 in seiner Endstellung.As soon as the isolator 2 has moved into the end position, the associated limit switch 22 opens "on", so that the contactor E drops out. Since the contacts E 33/34 - E 43/44 open, the generator is disconnected at all poles, the electromagnetic clutch 5 interrupts the connection from the flywheel storage 4 to the transmission 7, and the locking brake 6 simultaneously fixes the disconnector 2 in its end position.

Obwohl der Trennerlauf beendet ist, bleibt das Schütz F im Generatorkreis in Selbsthaltung. Dies bedeutet wegen den geöffneten Kontakten F 21/22 und F 31/32, daß diese Schaltung selbstsperrend ist und so lange keinen Gegenbefehl annimmt, als der Generator noch mit kritischer Drehzahl ausläuft.Although the isolator run has ended, contactor F remains locked in the generator circuit. Because of the open contacts F 21/22 and F 31/32, this means that this circuit is self-locking and does not accept a counter command as long as the generator is still running at a critical speed.

Mit Hilfe eines Bremswiderstandes 24 wird der Generator und damit der Schwungradspeicher 4 über die Kontakte E51/52 und A51/52 abgebremst, so daß der Antrieb 1 innerhalb kurzer Zeit wieder betriebsbereit ist.With the help of a braking resistor 24, the generator and thus the flywheel memory 4 are braked via the contacts E51 / 52 and A51 / 52, so that the drive 1 is ready for operation again within a short time.

Die Figur 4 zeigt ein Drehzahldiagramm, an dessen Ordinatenachse die Drehzahl n bzw. Spannung U aufgetragen ist, während die Abszissenachse die Zeit t darstellt. Der Kurve 25, beginnend im Koordinatenursprung, ist eine relativ steile kinetische Aufladung des Schwungradspeichers 4 zu entnehmen. Im Punkt 26 der Kurve spricht der Fliehkraftschalter 8 an, und auf dem nun abfallenden Ast 27 der Kurve erstreckt sich über den Nutzbereich zwischen den Punkten 26 und 28 der Entladevorgang des Schwungradspeichers 4, wobei im Punkt 28 der Trenner 2 seine Endstellung erreicht hat. Der über den Punkt 28 hinausgehende abfallende Ast der Kurve beinhaltet die restliche, nicht nutzbare kinetische Energie, die über den Bremswiderstand 24 abgebaut wird.FIG. 4 shows a speed diagram, on the ordinate axis of which the speed n or voltage U is plotted, while the abscissa axis represents the time t. A relatively steep kinetic charge of the flywheel accumulator 4 can be seen from curve 25, starting at the coordinate origin. At point 26 of the curve, the centrifugal switch 8 responds, and on the now falling branch 27 of the curve, the discharge process of the flywheel storage 4 extends over the useful area between points 26 and 28, the separator 2 having reached its end position at point 28. The falling branch of the curve which goes beyond point 28 contains the remaining, unusable kinetic energy which is dissipated via the braking resistor 24.

Claims (6)

1. Drive and control circuit arrangement (9) for a switch (2) having a contact operable via an interrupter shaft (21) for almost currentless switching, preferably in encapsulated, compressed gas-insulated switchgear, the drive having a flywheel store (4) and a drive motor (3) connected thereto for charging, the flywheel store (4) being chargeable directly before each switching operation, and the flywheel store (4), which can be connected to the interrupter shaft (21) of the switch (2) via an electromagnetic clutch (5), being dischargeable during the switching operation for executing a once initiated switching operation, characterized by a control circuit arrangement (9), through which the drive motor (3) is connected as a generator during the discharging of the flywheel store (4), for generating an autarkic voltage supply of the control circuit arrangement (9) during the switching operation.
2. Drive according to Claim 1, characterized in that a permanent magnetic motor is provided as the drive motor.
3. Drive according to Claim 1, characterized in that a universal motor (single-phase commutator motor) is provided as the drive motor.
4. Drive according to one of Claims 1 to 3, characterized in that the discharging operation of the flywheel store (4) can be triggered via a centrifugal switch (8).
5. Drive according to one of Claims 1 to 4, characterized in that drive motor (3) and flywheel store (4) are rigidly connected to one another via a shaft (10), in that a pinion (11) which engages with a cogwheel (20) of the interrupter shaft (21) of the disconnecting switch (2) is arranged loosely on the shaft (10), and in that the pinion (11) is fixed in its position during the charging operation of the flywheel store (4) and is coupled with the shaft (10) during the discharging operation.
6. Drive according to one of Claims 1 to 5, characterized in that an electromagnetic stop brake (6) is provided for fixing the pinion (11), and in that the stop brake (6) and the electromagnetic clutch (5) are supplied with voltage via the drive motor (3) connected as a generator.
EP85102808A 1984-04-12 1985-03-12 Driving device for a switch Expired EP0162212B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3413793 1984-04-12
DE19843413793 DE3413793A1 (en) 1984-04-12 1984-04-12 DRIVE FOR A SWITCH

Publications (2)

Publication Number Publication Date
EP0162212A1 EP0162212A1 (en) 1985-11-27
EP0162212B1 true EP0162212B1 (en) 1989-06-21

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EP85102808A Expired EP0162212B1 (en) 1984-04-12 1985-03-12 Driving device for a switch

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US (1) US4654492A (en)
EP (1) EP0162212B1 (en)
JP (1) JPS60230325A (en)
DE (2) DE3413793A1 (en)

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JPS60230325A (en) 1985-11-15
DE3413793A1 (en) 1985-10-24
DE3571172D1 (en) 1989-07-27
EP0162212A1 (en) 1985-11-27
US4654492A (en) 1987-03-31

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