AT93056B - Electrode assembly for electric melting furnaces. - Google Patents

Electrode assembly for electric melting furnaces.

Info

Publication number
AT93056B
AT93056B AT93056DA AT93056B AT 93056 B AT93056 B AT 93056B AT 93056D A AT93056D A AT 93056DA AT 93056 B AT93056 B AT 93056B
Authority
AT
Austria
Prior art keywords
angle
electrodes
electrode
melting furnaces
electrode assembly
Prior art date
Application number
Other languages
German (de)
Original Assignee
Rheinischemetallwaaren Und Mas
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 Rheinischemetallwaaren Und Mas filed Critical Rheinischemetallwaaren Und Mas
Application granted granted Critical
Publication of AT93056B publication Critical patent/AT93056B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



    Elektrodenanordnung für elelrtrische Schmelzöfen.   



   Bei den bisherigen Elektrodenanordnungen für mehrphasigen Wechselstrom pflegen die Elektroden um   1200 oder 2   x 900 gegeneinander versetzt zu werden. Zur Erzielung annähernd gleicher Phasenbelastung werden alle drei Elektroden reguliert, wodurch entweder höhere Bedienungskosten oder drei selbsttätige Regler erforderlich werden. 



   Durch vorliegende Erfindung wird eine der Regelungen erspart. Der Erfindung gemäss werden bei Drehstrom zwei Elektroden unter einem Winkel von 600 zueinander und jede von diesen zu der dritten Elektrode unter einem Winkel von   1500 angeordnet.   Bei verkettetem Zweiphasen-Wechselstrom werden zwei Elektroden zueinander unter einem Winkel von   90  und   jede von diesen zur dritten Elektrode unter einem Winkel von   1350 angeordnet.   



   In der Zeichnung sind diese zwei Elektrodenanordnungen für Schmelzöfen schematisch dargestellt. 



   Die Anordnung nach Fig. 1 gilt für Drehstrom. Die Elektrode E braucht nicht regelbar zu sein. 
 EMI1.1 
 Elektrode E einen Winkel von   1500 einschliessen.   



   Die Anordnung nach Fig. 2 gilt für verketteten Zweiphasenstrom. Regelbar sind nur die beiden Elektroden Ei und E2, die miteinander einen Winkel von   900 bilden. Nicht   regelbar ist die Elektrode   E,   die mit den Elektroden Ei und E2 je einen Winkel von   1350 bildet.   



   Geringe Abweichungen der Winkelgrössen, sowie der Lage der Elektroden in einer Ebene sind zulässig. 



   PATENT-ANSPRÜCHE :
1. Elektrodenanordnung für elektrische Schmelzöfen, welche mittels dreier in einer Ebene gelegener Lichtbogenelektroden mit Drehstrom gespeist werden, dadurch gekennzeichnet, dass zwei Elektroden zueinander unter einem Winkel von 60  und jede von diesen zu der dritten Elektrode unter einem Winkel von 150  angeordnet sind, so dass entsprechend der gleichen   Elektrodenentfernung   [zur Erzielung gleicher Belastung der drei Phasen] nur die beiden, einen Winkel von   600 einschliessenden Elektroden   regelbar zu sein brauchen. 

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



   <Desc / Clms Page number 1>
 



    Electrode arrangement for electrical melting furnaces.



   In the previous electrode arrangements for multi-phase alternating current, the electrodes tend to be offset from one another by 1200 or 2 x 900. To achieve approximately the same phase load, all three electrodes are regulated, which means that either higher operating costs or three automatic regulators are required.



   The present invention saves one of the regulations. According to the invention, two electrodes are arranged at an angle of 600 to one another and each of these to the third electrode at an angle of 1500 for three-phase current. In the case of concatenated two-phase alternating current, two electrodes are arranged at an angle of 90 to one another and each of these electrodes are arranged at an angle of 1350 to the third electrode.



   In the drawing, these two electrode arrangements for melting furnaces are shown schematically.



   The arrangement according to FIG. 1 applies to three-phase current. The electrode E does not need to be adjustable.
 EMI1.1
 Enclose electrode E at an angle of 1500.



   The arrangement according to FIG. 2 applies to concatenated two-phase current. Only the two electrodes Ei and E2, which form an angle of 900 with one another, can be regulated. Electrode E, which forms an angle of 1350 with electrodes Ei and E2, cannot be regulated.



   Slight deviations in the angular dimensions and the position of the electrodes in a plane are permitted.



   PATENT CLAIMS:
1. Electrode arrangement for electric melting furnaces which are fed with three-phase current by means of three arc electrodes located in one plane, characterized in that two electrodes are arranged at an angle of 60 to one another and each of these to the third electrode at an angle of 150, so that corresponding to the same electrode distance [to achieve the same load on the three phases] only the two electrodes, which enclose an angle of 600, need to be adjustable.

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

 

Claims (1)

2. Elektrodenanordnung für elektrische Schmelzöfen, welche mittels dreier in einer Ebene gelegener Liehtbogenelektroden mit verkettetem Zweiphasenstrom gespeist werden, dadurch gekennzeichnet, dass zwei Elektroden zueinander unter einem Winkel von 90 und jede von diesen zur dritten Elektrode unter einem Winkel von 1350 angeordnet ist, so dass (zur Erzielung gleicher Phasenbelastung) nur die beiden, den Winkel von 900 einschliessenden Elektroden regelbar zu sein brauchen. EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Electrode arrangement for electric smelting furnaces, which are fed by means of three arc electrodes located in one plane with a linked two-phase current, characterized in that two electrodes are arranged at an angle of 90 to one another and each of these is arranged at an angle of 1350 to the third electrode, so that Only the two electrodes that enclose the angle of 900 need to be adjustable (to achieve the same phase load). EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT93056D 1921-12-01 1922-04-24 Electrode assembly for electric melting furnaces. AT93056B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE93056X 1921-12-01

Publications (1)

Publication Number Publication Date
AT93056B true AT93056B (en) 1923-06-11

Family

ID=5644468

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93056D AT93056B (en) 1921-12-01 1922-04-24 Electrode assembly for electric melting furnaces.

Country Status (1)

Country Link
AT (1) AT93056B (en)

Similar Documents

Publication Publication Date Title
AT93056B (en) Electrode assembly for electric melting furnaces.
DE620894C (en) Adjustable terminal board provided on an electric motor
DE701248C (en) Single phase induction motor
DE372788C (en) Electrode arrangement for electric furnaces
AT115990B (en)
DE576607C (en) Pole-changing induction motor for driving knitting, knitting and similar machines
AT69939B (en) Circuit arrangement for regulating polyphase transformers.
DE706458C (en) Single phase induction motor
AT73503B (en) Polyphase horn arrester.
AT136845B (en) DC arc welding generator.
AT98362B (en) Transformer for converting two-phase electricity into three-phase electricity.
AT87247B (en) Circuit for regulating 2 n-phase transformers in only n-phases with the help of an n-phase additional voltage.
AT80277B (en) AC repulsion motor with for both Drehric AC repulsion motor with auxiliary (exciter) windings that can be switched for both directions of rotation. switchable auxiliary (exciter) windings.
AT118151B (en) Arrangement to improve the commutation of AC machines.
DE456003C (en) Circuit arrangement for phase improvement in AC systems by means of a capacitor
DE427901C (en) United alternation and series connection
AT118543B (en) Inductive fine regulator.
DE383919C (en) Regulating resistor for electric generators
DE383691C (en) Pole changing for multi-phase induction motors
AT98880B (en) Mechanically driven rectifier for multi-phase current for high or low voltage.
AT46025B (en) Three-phase arc lamp with motor control.
AT78319B (en) Electric starting device for machines with rotating cylinders.
AT108028B (en) Arrangement for attaching rotary selectors to the selector frame in telephone systems.
AT71653B (en) Arrangement to improve the commutation of three-phase series motors with series transformer between stator and rotor winding.
DE324665C (en) Circuit for regulating 2n-phase transformers in only n phases by short-circuiting windings at the zero point