AT96238B - Device for regulating the magnetic resistance of reactors and transformers. - Google Patents

Device for regulating the magnetic resistance of reactors and transformers.

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Publication number
AT96238B
AT96238B AT96238DA AT96238B AT 96238 B AT96238 B AT 96238B AT 96238D A AT96238D A AT 96238DA AT 96238 B AT96238 B AT 96238B
Authority
AT
Austria
Prior art keywords
transformers
reactors
regulating
magnetic resistance
voltage
Prior art date
Application number
Other languages
German (de)
Original Assignee
Elin Ag Elek Ind Wien
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 Elin Ag Elek Ind Wien filed Critical Elin Ag Elek Ind Wien
Application granted granted Critical
Publication of AT96238B publication Critical patent/AT96238B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zur Regulierung des magnetischen Widerstandes von Drosselspulen und   Transform atoren.   
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 den   erregenden.Amperewindungen,   die den magnetischen Fluss durch den Kern 5 durchtreiben wollen. 



  Durch die   Schirmwirkung   dieses Stromes wird also praktisch genommen der Kern von eindringenden Kraftlinien abgeschirmt, so dass die Kraftlinien fast in ihrer Gesamtheit ihren Weg durch die Kerne   fi   
 EMI2.2 
 im anderen Sinn eine allmähliche Verkleinerung herstellen lässt. 



   Dabei kann man nach Wunsch den Eisenquersehnitt bei der   Regulierung   ändern oder gleich behalten. Haben beispielsweise die Kerne 5 und 6 gleichen Querschnitt, die   Isolierstücke   und 9 aber verschiedene Dicke, so wird im   Ausführungsbeispiel,   wenn man den Schalter 13 öffnet und den Schalter 14 
 EMI2.3 
 Widerstand oder eine Selbstinduktion vorzunehmen, so dass die Abschirmung der Kraftlinien nur teilweise eintritt. 



   Man kann die Wicklung eines   Schenkels periodisch kurzschliessen   und öffnen und dadurch die während eines Zeitraumes in Betracht kommende mittlere Stromaufnahme der Drosselspule variieren. 



  Dies kann auch in bekannter Weise automatisch mit Hilfe eines dem   Tirrillregler   ähnlichen Apparates geschehen. Der Regler kann beispielsweise von einem Spannungsrelais betätigt werden. welches derart wirkt, dass bei hoher Spannung die Kurzschliessung des Kontaktes während einer längeren Periode, bei niedriger Spannung während einer kürzeren Periode erfolgt, etwa zum Zwecke, um die Spannung an dem Speisepunkt eines Verteilungsnetzes konstant zu halten. Steigt die Spannung über den Sollwert. so wird die Stromaufnahme der Drosselspule durch länger andauerndes   Kurzschliessen   der Wicklung eines Kernes vergrössert, und der grössere wattlose Strom verursacht einen Spannungsabfall in der   Zu-   leitung und   ändern'Teilen des   Stromkreises.

   Sinkt die Spannung, so wird die Stromaufnahme v (r-   mindert.   



   Die Erfindung lässt sich auch bei Transformatoren anwenden, um eine Änderung des Cbersetzungsverhältnisses hervorzurufen. Schematisch ist dies in Fig. 2 bei einem Einphasentransformator 
 EMI2.4 
 werden, die Spule 32 durch den Schalter Wenn die Schalter   und') 4 offen   sind, so führen die   Eisenkerne 2o und   26 einen Teil des magnetischen Flusses. Primär- und Sekundärspulen werden also nicht vom gleichen Fluss   durchströmt.   Man kann dies auch so ausdrücken, dass die Kerne   2J und 2   magnetische Pfade für den Streufluss bilden und sowohl primäre als sekundäre Streuung erhöhen.

   Wenn 
 EMI2.5 
 
 EMI2.6 
   gekennzeichnet,   dass ein Teil des magnetischen Stromkreises der Drosselspule aus mehreren parallel geschalteten Zweigen besteht, von denen einer oder mehrere mit Spulen umgeben werden, deren Strom- 
 EMI2.7 
 

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



   <Desc / Clms Page number 1>
 



  Device for regulating the magnetic resistance of reactors and transformers.
 EMI1.1
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 the exciting.Amperewindungen that want to drive the magnetic flux through the core 5.



  The shielding effect of this current practically shields the core from penetrating lines of force, so that the lines of force almost in their entirety make their way through the cores fi
 EMI2.2
 in the other sense can be made a gradual reduction.



   You can change the iron cross-section during regulation or keep it the same. If, for example, the cores 5 and 6 have the same cross-section, but the insulating pieces 9 and 9 have different thicknesses, then in the exemplary embodiment, when the switch 13 is opened and the switch 14
 EMI2.3
 To make resistance or a self-induction, so that the shielding of the lines of force occurs only partially.



   You can periodically short-circuit and open the winding of one leg and thereby vary the mean current consumption of the inductor during a period of time.



  This can also be done automatically in a known manner with the aid of an apparatus similar to the Tirrill regulator. The regulator can be operated, for example, by a voltage relay. which acts in such a way that at high voltage the short-circuiting of the contact takes place for a longer period, at low voltage for a shorter period, for example for the purpose of keeping the voltage at the feed point of a distribution network constant. If the voltage rises above the setpoint. the current consumption of the choke coil is increased by long-term short-circuiting of the winding of a core, and the greater wattless current causes a voltage drop in the supply line and changes parts of the circuit.

   If the voltage drops, the current consumption v (r- is reduced.



   The invention can also be used in transformers in order to bring about a change in the transmission ratio. This is schematically shown in FIG. 2 for a single-phase transformer
 EMI2.4
 If the switches and ') 4 are open, the iron cores 2o and 26 lead part of the magnetic flux. The same flux does not flow through primary and secondary coils. This can also be expressed in such a way that the cores 2J and 2 form magnetic paths for the leakage flux and increase both primary and secondary leakage.

   If
 EMI2.5
 
 EMI2.6
   characterized in that part of the magnetic circuit of the choke coil consists of several branches connected in parallel, one or more of which are surrounded by coils whose current-
 EMI2.7
 

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

 

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT96238D 1922-10-23 1922-10-23 Device for regulating the magnetic resistance of reactors and transformers. AT96238B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT96238T 1922-10-23

Publications (1)

Publication Number Publication Date
AT96238B true AT96238B (en) 1924-03-10

Family

ID=3615812

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96238D AT96238B (en) 1922-10-23 1922-10-23 Device for regulating the magnetic resistance of reactors and transformers.

Country Status (1)

Country Link
AT (1) AT96238B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566260A (en) * 1946-04-10 1951-08-28 Photoswitch Inc Electrical control
WO1992015051A1 (en) * 1991-02-26 1992-09-03 Miller Electric Mfg. Co. Shunt coil controlled transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566260A (en) * 1946-04-10 1951-08-28 Photoswitch Inc Electrical control
WO1992015051A1 (en) * 1991-02-26 1992-09-03 Miller Electric Mfg. Co. Shunt coil controlled transformer
US5187428A (en) * 1991-02-26 1993-02-16 Miller Electric Mfg. Co. Shunt coil controlled transformer

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