AT8511B

AT8511B - Procedure for bumpless starting of fully loaded, asynchronous three-phase motors.

Info

Publication number: AT8511B
Authority: AT
Original assignee: Siemens Ag
Priority date: 1901-01-17
Filing date: 1901-01-17
Publication date: 1902-07-25

Description

  

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   Die vorliegende Erfindung hat den Zweck, die bedeutenden Vortheile, welche asyn-   chrone Drehstrommotoren   mit Kurzschlussankern in constructiver Beziehung besitzen, aus-   /u nützen und   dabei gleichzeitig den Nachtheil des schwierigen Analufens durch ein Verfahren zu beseitigen, welches wesentlich in Folgendem besteht :
Die von einer Primärstation mit Strom zu versorgenden einzelnen Asynchronmotoren erhalten sämmtlich getrennte Leitungen von der Centrale aus. Diese Leitungen können 
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 entwickeln kann.

   Hat die Anlfumaschine und somit auch der Motor die wolle Geschwindigkeit erreicht, so wird die Motroleitung und damit auch die Anlaufmaschinenleitung mit dorn Primärnetze parallel geschaltet. 
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 Weise die für den Motro erforderliche elektrische Arbeit immer mehr und mehr auf die   Hauptllnlige   übertragen und der Hilfsmaschine entzogen werden, so dass letztere wieder abgestelltwerdenkann. 

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



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   The purpose of the present invention is to utilize the significant advantages that asynchronous three-phase motors with short-circuit armatures have in a constructive relationship and at the same time to eliminate the disadvantage of the difficult analogue call by means of a method which essentially consists of the following:
The individual asynchronous motors to be supplied with electricity from a primary station all receive separate lines from the central station. These lines can
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 can develop.

   If the start-up machine and thus also the motor have reached the desired speed, the motor line and thus also the start-up machine line are connected in parallel with the primary networks.
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 In this way, the electrical work required for the Motro is increasingly being transferred to the main line and removed from the auxiliary machine so that the latter can be switched off again.

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

Claims

PATENT CLAIM: Process for starting asynchronous three-phase motors of any size with full load and then connecting them to the primary system without bumps, characterized in that the individual asynchronous motors in the system are brought to full speed with the help of separate lines from a special auxiliary machine or starting machine and then be connected in synchronism to the primary network of the system, whereupon the start-up machine is switched off again from this primary network and is available again for another motor to start up. ** WARNING ** End of CLMS field may overlap beginning of DESC **.