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AT131510B - Procedure for starting large short-circuit armature motors. - Google Patents

Procedure for starting large short-circuit armature motors.

Info

Publication number
AT131510B
AT131510B AT131510DA AT131510B AT 131510 B AT131510 B AT 131510B AT 131510D A AT131510D A AT 131510DA AT 131510 B AT131510 B AT 131510B
Authority
AT
Austria
Prior art keywords
procedure
starting
circuit armature
large short
machine
Prior art date
Application number
Other languages
German (de)
Inventor
Michael Dr Ing Liwschitz
Hans Dipl Ing Trasl
Original Assignee
Siemens 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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT131510B publication Critical patent/AT131510B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zum Anlassen von grossen Kurzschlussankermotoren. 



   Das einfachste Anlassen von Asynchronmasehinen besteht darin, dass diese unmittelbar an das Netz gelegt werden. Ein derartiges Anlassen hat jedoch eine verhältnismässig grosse Stossbelastung in dem Netz zur Folge, so dass dieses bisher nur bei verhältnismässig kleinen Maschinenleistungen angewendet werden konnte. 



   Aus diesem Grunde war es bisher erforderlich, die Maschinen statt in der einfachen Ausführung als Kurzschlussankermotoren als   Sehleifringmasehinen   auszubilden und sie über Widerstände anzulassen. 



   Nach der Erfindung kann auch das Anlassen von sehr grossen Maschinen als   Kurzschlussanker-   maschinen   ermöglicht   werden, indem während des Anlassens parallel zu der Maschine an das Netz eine Maschine angeschlossen wird, die den grossen   Blindstromverbrauch   des   Anlaufvorganges   deckt. Hiezu 
 EMI1.1 
 ist) vor dem Anlassen des   Kurzschlussankermotors   derart eingestellt (erregt), dass sie die Blindkomponente des Anlaufstromstosses   übernehmen   kann. 



   Die Anwendung des neuen   Anlassverfahrens   ist besonders vorteilhaft für   Synchronmaschinen   mit   Dämpferwicklung,   die als   Kurzschlussankermaschinen   asynchron angelassen werden. 



   Bei Anlagen mit mehreren Einheiten ist es lediglich erforderlich, die zuerst eingeschaltete Maschine vor dem Dazuschalten der zweiten Maschine entsprechend   überzuerregen,   so dass diese den für den Kurzschlussanlauf der zweiten bzw. folgenden Maschine erforderlichen Blindstrom liefert. 



   PATENT-ANSPRÜCHE :
1. Verfahren zum asynchronen Anlassen von Maschinen mit Kurzschlusswicklung, dadurch gekennzeichnet, dass während des Anlassvorganges an das Netz parallel zu der   anzupassenden   Maschine eine Blindleistungsmaschine gelegt wird, die derart erregt wird, dass sie die Blindkomponente des Anlaufstromstosses liefert. 

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



   <Desc / Clms Page number 1>
 



  Procedure for starting large short-circuit armature motors.



   The simplest way to start asynchronous machines is that they are connected directly to the network. Such a starting, however, results in a comparatively large shock load in the network, so that this could only be used with comparatively small machine outputs.



   For this reason, it has hitherto been necessary to design the machines as Sehleifringmasehinen instead of the simple design as squirrel-cage armature motors and to start them via resistors.



   According to the invention, it is also possible to start very large machines as short-circuit armature machines by connecting a machine to the network in parallel with the machine during start-up, which machine covers the large reactive power consumption of the start-up process. For this
 EMI1.1
 is) set (excited) before the squirrel-cage motor is started in such a way that it can take over the reactive component of the starting current surge.



   The use of the new starting process is particularly advantageous for synchronous machines with damper windings, which are started asynchronously as short-circuit armature machines.



   In the case of systems with several units, it is only necessary to over-excite the machine that was switched on first before switching on the second machine, so that it supplies the reactive current required for the short-circuit start of the second or following machine.



   PATENT CLAIMS:
1. A method for asynchronous starting of machines with short-circuit winding, characterized in that during the starting process, a reactive power machine is connected to the network parallel to the machine to be adapted, which is excited in such a way that it supplies the reactive component of the starting current surge.

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

 

Claims (1)

2. Verfahren nach Anspruch 1 in der Anwendung auf das Anlassen mehrerer mit Käfigwicklung ausgerüsteter Synchronmaschinen einer Anlage, dadurch gekennzeichnet, dass die zuerst angelassene Maschine vor dem Zuschalten der nächstfolgenden übererregt wird. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. The method according to claim 1 in the application of starting several synchronous machines equipped with cage windings in a system, characterized in that the machine started first is overexcited before the next one is switched on. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT131510D 1930-08-19 1931-08-14 Procedure for starting large short-circuit armature motors. AT131510B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE131510T 1930-08-19

Publications (1)

Publication Number Publication Date
AT131510B true AT131510B (en) 1933-01-25

Family

ID=29411950

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131510D AT131510B (en) 1930-08-19 1931-08-14 Procedure for starting large short-circuit armature motors.

Country Status (1)

Country Link
AT (1) AT131510B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331307A1 (en) * 1983-08-31 1985-03-14 Ruhrkohle Ag, 4300 Essen Method and device for starting a three-phase short-circuit-rotor motor, especially for mining operations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331307A1 (en) * 1983-08-31 1985-03-14 Ruhrkohle Ag, 4300 Essen Method and device for starting a three-phase short-circuit-rotor motor, especially for mining operations

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