AT40808B - Device to avoid no-load losses in transformers. - Google Patents

Device to avoid no-load losses in transformers.

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Publication number
AT40808B
AT40808B AT40808DA AT40808B AT 40808 B AT40808 B AT 40808B AT 40808D A AT40808D A AT 40808DA AT 40808 B AT40808 B AT 40808B
Authority
AT
Austria
Prior art keywords
transformers
avoid
load losses
transformer
windings
Prior art date
Application number
Other languages
German (de)
Original Assignee
Aeg
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 DE1908204208D external-priority patent/DE204208C/de
Application filed by Aeg filed Critical Aeg
Application granted granted Critical
Publication of AT40808B publication Critical patent/AT40808B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zur Vermeidung von Leerlaufsverlusten in Transformatoren. 



   Gegenstand der Erfindung ist eine Weiterbildung der im Stammpatent Nr. 40269 beschriebenen Einrichtung. Die neuen Schaltungsweisen beziehen sich besonders auf den Fall, dass an den Transformatoren sowohl primär als auch sekundär nur Hochspannung zur Verfügung steht, so dass die unmittelbare Einschaltung der Relaiswicklungen in die Hochspannungsleitung Schwierigkeiten verursachen würde.

   Man erreicht den gewünschten Zweck nun dadurch, dass man das Relais mit einer oder zwei   Wicklungen p, g1 versieht.   welche in ihrer Wirkung auf das Relais den Wicklungen f und g des Stammpatentes entsprechen und mit den Sekundärwicklungen p und q zweier Stromwandler in geeigneter Welse verbunden werden, deren   Primärwicklungen   in den Stromkreisen des dauernd eingeschalteten Transformators I und das parallel zu schaltenden Transformators   11,   und zwar auf den Primär- oder Sekundärseiten liegen. 



   Ist es z.   B.   erforderlich, dass nach erfolgter Zuschaltung des zweiten Transformators der Magnetismus des Relais   verstärkt   werde, so wird die Schaltung so getroffen, dass sich die Ströme in den   Wicklungen fil   und gl addieren (Fig. 1) (vgl. Ausführung nach Fig. 3 des   Stammpatents).   Ist jedoch eine Schwächung erforderlich, so werden die Wicklungsenden zwischen einer Spule und dem zugehörigen Stromtransformator vertauscht, wodurch sich dann die Ströme subtrahieren (Fig. 2) (vgl. hierzu Ausführung nach Fig. 4 des   Stammpatent).   



   Die Regelung der Stromstärke selbst kann bei beiden Ausführungen in bequemer Weise durch eine zur Wicklung q parallelgeschaltete, gegebenenfalls regelbare Drosselspule oder einen Widerstand w erfolgen (Fig. 2). 



   Es ist natürlich auch hier möglich, den Grad der Schwächung oder   Verstärkung   des Magnetismus nach erfolgter Zuschaltung des zweiten Transformators nach Art der Fig. 6 in dem Stammpatent zu bewirken, indem die Streuung zwischen den beiden Spulen und g1 verändert wird. 



   PATENT-ANSPRÜCHE :
1. Einrichtung   zu) Vermeidung   von Leerlaufsverlusten in Transformatoren nach Patent Nr.   40269, dadurch gekennzeichnet,   dass die Zu- und Abschaltung der Zusatz- 
 EMI1.1 
 wird, wobei der eine Stromwandler im Stromkreise des dauernd eingeschalteten Transformators und der andere im Stromkreise des parallel zu schaltenden Transformators liegt. 
 EMI1.2 
 

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



   <Desc / Clms Page number 1>
 



  Device to avoid no-load losses in transformers.



   The subject of the invention is a further development of the device described in the parent patent no. The new circuit methods relate in particular to the case that only high voltage is available on the transformers both primarily and secondarily, so that the immediate connection of the relay windings in the high-voltage line would cause difficulties.

   The desired purpose is achieved by providing the relay with one or two windings p, g1. which in their effect on the relay correspond to the windings f and g of the parent patent and are connected in a suitable manner to the secondary windings p and q of two current transformers, the primary windings in the circuits of the permanently switched on transformer I and the transformer 11 to be connected in parallel, namely lie on the primary or secondary sides.



   Is it z. If, for example, it is necessary that the magnetism of the relay is amplified after the second transformer has been switched on, the circuit is made in such a way that the currents in the windings fil and gl add up (Fig. 1) (see the embodiment according to Fig. 3 of the Parent patent). If, however, a weakening is required, the winding ends are exchanged between a coil and the associated current transformer, so that the currents are then subtracted (FIG. 2) (cf. embodiment according to FIG. 4 of the parent patent).



   The regulation of the current intensity itself can take place in both versions in a convenient manner by a choke coil connected in parallel to the winding q, possibly controllable, or a resistor w (FIG. 2).



   It is of course also possible here to effect the degree of weakening or strengthening of the magnetism after the second transformer has been switched on according to the type of FIG. 6 in the parent patent by changing the scatter between the two coils and g1.



   PATENT CLAIMS:
1. Device for) Avoidance of no-load losses in transformers according to Patent No. 40269, characterized in that the connection and disconnection of the additional
 EMI1.1
 one current transformer is in the circuit of the continuously switched on transformer and the other in the circuit of the transformer to be connected in parallel.
 EMI1.2
 

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

 

Claims (1)

EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT40808D 1908-03-17 1909-01-14 Device to avoid no-load losses in transformers. AT40808B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1908204208D DE204208C (en) 1908-03-17

Publications (1)

Publication Number Publication Date
AT40808B true AT40808B (en) 1910-02-10

Family

ID=5780658

Family Applications (1)

Application Number Title Priority Date Filing Date
AT40808D AT40808B (en) 1908-03-17 1909-01-14 Device to avoid no-load losses in transformers.

Country Status (1)

Country Link
AT (1) AT40808B (en)

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