AT33303B

AT33303B - DC generator for branched circuits.

Info

Publication number: AT33303B
Authority: AT
Original assignee: Elek Sche Zugbeleuchtung M B H
Priority date: 1904-04-05
Filing date: 1907-04-10
Publication date: 1908-06-10

Description

  

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 Werte des Erregerstromes ergibt. Ist der Lampenstromkreis II vollkommen ausgeschaltet, so sucht die Maschine einen bestimmten Wert des Stromes in die Batterie abzugeben. Werden die Lampen teilweise oder ganz eingeschaltet, während die Maschine im Betriebe ist, so bleibt   Maschùlell8pannung   und Ladestrom unverändert und es steigt der von der Maschine abgegebene Strom um den Betrag des Lampenstromes. 



   Durch Verminderung oder Vermehrung der Windungszahl der Wicklung F kann man die Charakteristik der Maschine so verändern, dass bei Vergrösserung des Stromes im Kreise   11   der Strom im Kreise   I   und mit ihm die Maschinenspannung nicht konstant bleibt, sondern aboder zunimmt. 



   In Fig. 3 besteht der Stromkreis I aus Lampen II und der Erregerwicklung E eines Motors, während der den variablen Strom aufnehmende Anker   A   des, Motors mit   seinem Anlasswiderstand jR   
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 Values of the excitation current results. If the lamp circuit II is completely switched off, the machine seeks to deliver a certain value of the current to the battery. If the lamps are partially or completely switched on while the machine is in operation, the machine voltage and charging current remain unchanged and the current delivered by the machine increases by the amount of the lamp current.



   By reducing or increasing the number of turns of winding F, the characteristics of the machine can be changed so that when the current in circuit 11 increases, the current in circuit I and with it the machine voltage does not remain constant, but rather decreases or increases.



   In Fig. 3, the circuit I consists of lamps II and the excitation winding E of a motor, while the variable current absorbing armature A of the motor with its starting resistor jR
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Claims

or auxiliary brushes short-circuited via a resistor, which are offset by approximately half a pole pitch compared to the main brushes, characterized in that an almost constantly excited field winding influences the current strength and indirectly the voltage of a current branch connected directly between the main brushes, while with a second circuit variable resistance a main current exciter winding acting in the same way as the first field winding is connected in series, so that regardless of the load prevailing in the second circuit, the current in the first circuit remains constant and the machine voltage also remains the same depending on the number of turns of the main current exciter winding or according to a previously determined law increases or decreases.