AT89023B - Device for starting control converters for motors in Leonard circuit. - Google Patents

Device for starting control converters for motors in Leonard circuit.

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Publication number
AT89023B
AT89023B AT89023DA AT89023B AT 89023 B AT89023 B AT 89023B AT 89023D A AT89023D A AT 89023DA AT 89023 B AT89023 B AT 89023B
Authority
AT
Austria
Prior art keywords
motors
starting control
control converters
circuit
converter
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Schuckertwerke Gmbh
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
Priority claimed from AT76033D external-priority patent/AT76033B/en
Application filed by Siemens Schuckertwerke Gmbh filed Critical Siemens Schuckertwerke Gmbh
Application granted granted Critical
Publication of AT89023B publication Critical patent/AT89023B/en

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  • Stopping Of Electric Motors (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zum Anlassen von Steuerumformern für   Motoren in Leonardscaaltung.   



   Nach dem Stammpatente Nr. 76033 ist die Anlassvorrichtung eines Steuerumformers, der in Leonardschaltung einen Arbeitsmotor speist, mit dessen Manövrierbremshebel so verbunden, dass nach Festziehen der Bremse des Arbeitsmotors der Umformer zum Zwecke der Energieersparnis stillgesetzt wird, Eine Verbesserung dieser Einrichtung wird durch die Erfindung dadurch erzielt, dass insbesondere bei Schwungradumformern die Anlassvorrichtung nur soweit betätigt wird, dass der Umformer bei festgezogener Bremse auf verringerte Touren eingestellt wird. Dadurch wird an Energie gespart, die aufgewendet werden müsste, wenn die Schwungmassen stillgesetzt und dann wieder in Gang gebracht werden müssten. 



  Die Einstellung auf verringerte Tourenzahl geschieht beispielsweise durch Verstärkung der Erregung, wenn der Umformer von einem Gleichstrommotor angetrieben wird, oder durch entsprechende Verschiebung der Bürsten, falls der Antriebsmotor des Umformers ein Wechselstrom-Kollektormotor ist. 



   Eine weitere Ausgestaltung der Erfindung besteht darin, dass auch die Erregermaschine vom Manövrierbremshebel aus so geregelt wird, dass nach Anziehen der Bremse die in den Erregerstromkreisen gebrauchte Energie verringert wird, beispielsweise durch Abschalten des Erregerumformers oder Spannungslosmachen der Erregermaschine durch Unterbrechung ihres Erregerstromkreises. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Device for starting control converters for motors in Leonardscaaltung.



   According to the parent patent No. 76033, the starting device of a control converter, which feeds a work motor in a Leonard circuit, is connected to its maneuvering brake lever in such a way that after the brake of the work motor is tightened, the converter is shut down for the purpose of saving energy achieves that, particularly in the case of flywheel converters, the starting device is only actuated to such an extent that the converter is set to reduced speeds when the brake is applied. This saves energy that would have to be used if the centrifugal masses had to be stopped and then started again.



  The setting to a reduced number of revolutions is done, for example, by increasing the excitation if the converter is driven by a DC motor, or by moving the brushes accordingly if the converter drive motor is an AC commutator motor.



   Another embodiment of the invention is that the exciter is also controlled from the maneuvering brake lever so that after the brake is applied, the energy used in the exciter circuits is reduced, for example by switching off the exciter converter or by disconnecting the exciter from the exciter circuit.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Einrichtung nach Patent Nr. 76033 zum Anlassen von Steuerumformern für Motoren in Leonardschaltung, dadurch gekennzeichnet, dass vom Manövrierbremshebel aus bei festgezogener Bremse der Umformer auf verringerte Touren eingestellt wird, z. B. durch Verstärkung seines Motorfeldes, durch Verschiebung der Bürsten seines Motors o. dgl. oder dadurch, dass seine Erregermaschine spannungslos gemacht wird, **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Device according to patent no. 76033 for starting control converters for motors in Leonard circuit, characterized in that the converter is set to reduced speeds from the maneuvering brake lever when the brake is tightened, e.g. B. by strengthening its motor field, by moving the brushes of its motor or the like. Or by making its exciter machine de-energized, ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT89023D 1916-08-28 1918-08-03 Device for starting control converters for motors in Leonard circuit. AT89023B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT76033D AT76033B (en) 1915-12-31 1916-08-28 Device for starting control converters from the driver's cab.
DE89023X 1917-10-11

Publications (1)

Publication Number Publication Date
AT89023B true AT89023B (en) 1922-07-25

Family

ID=25603975

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89023D AT89023B (en) 1916-08-28 1918-08-03 Device for starting control converters for motors in Leonard circuit.

Country Status (1)

Country Link
AT (1) AT89023B (en)

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