AT119426B - Device for commutating currents in multi-phase windings. - Google Patents

Device for commutating currents in multi-phase windings.

Info

Publication number
AT119426B
AT119426B AT119426DA AT119426B AT 119426 B AT119426 B AT 119426B AT 119426D A AT119426D A AT 119426DA AT 119426 B AT119426 B AT 119426B
Authority
AT
Austria
Prior art keywords
commutating
winding
phase windings
currents
valves
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Application granted granted Critical
Publication of AT119426B publication Critical patent/AT119426B/en

Links

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Einrichtung zur Kommutierung von   Strömen   in Mehrphasenwicklungen. 



   Das Stammpatent bezieht sich auf eine Einrichtung zur Kommutierung von Strömen in Mehrphasenwicklungen ohne mechanische Kommutatoren, bei der die   Arbeitswicklung   über Ventile mit der   Stromzu-oder-ableitung   verbunden ist und bei der den kommutierenden Wicklungsteilen ein Hilfswechselstrom überlagert wird, um die Teilströme in den Ventilen periodisch auf den Wert Null zu bringen und die Ventile steuerfähig zu machen. Zu dem Zweck sind besondere Transformatoren vorgeschlagen, die den Ventilen den Hilfswechselstrom über Ringleitungen zuführen. 



   Gemäss der Erfindung wird der gleiche Zweck dadurch erreicht, dass   der Hilfswechselstrom   den bei der Kommutierung kurzgeschlossenen Wicklungsteilen durch Transformation über eine gegenüber dem Feldsystem feststehende, mit den kommutierenden Wicklungsteilen koaxiale   Primärwicklung   zugeführt wird, wobei die kommutierenden Teile der Arbeitswicklung die   Sekundärwicklung   bildet. 



   Auf diese Weise werden die Transformatoren und ein Teil der Ringleitungen für den Hilfsweehselstrom erspart. 



   In der Zeichnung ist schematisch ein Ausführungsbeispiel gemäss der Erfindung dargestellt. Gleiche Buchstaben bezeichnen gleiche Teile der Einrichtung nach dem Stammpatent. Auch die Wirkungsweise der Einrichtung ist die gleiche wie im Stammpatent beschrieben. Die koaxial zum kommutierenden Teil der   Arbeitswicklung tangeordnefe,   feststehende Hilfswicklung ist mit w bezeichnet. Die Hilfs- 
 EMI1.1 
 wicklung t, sie wird an die Hilfswechselspannung angeschlossen und bildet so die   Primärwicklung   eines Transformators mit dem kommutierenden Teil der Arbeitswieklung als Sekundärwicklung.

   Die an der Wicklung w liegende Wechselspannung induziert nun rein transformatorisch ohne Zuhilfenahme der Rotation in den während der Kommutierung kurzgeschlossenen Wieklungsgruppen einen Wechselstrom, der den resultierenden Strom der im Kommutierungskreis liegenden Ventile periodisch auf den Wert Null bringt. 



   PATENT-ANSPRÜCHE :
Einrichtung zur Kommutierung von Strömen in Mehrphasenwieklungen ohne mechanische Kommutatoren nach dem Patent Nr. 115165, bei der den kommutierenden Teilen der Arbeitswicklung, die über gesteuerte Ventile mit der   Stromzu-oder-ableitung   verbunden ist, ein   Hilfswechselstrom   überlagert wird, um die Teilströme in den Ventilen periodisch auf den Wert Null zu bringen und die Ventile steuerfähig zu machen, dadurch gekennzeichnet, dass der   Hilfswechselstrom   den bei der Kommutierung kurzgeschlossenen Wicklungsteilen durch Transformation über eine gegenüber dem Feldsystem feststehende, mit den kommutierenden Wicklungsteilen koaxiale   Primärwicklung (w) zugeführt wird,   wobei die kommutierenden Teile der Arbeitswicklung (f) die   Sekundärwicklung   bilden.

   

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



   <Desc / Clms Page number 1>
 



  Device for commutating currents in multi-phase windings.



   The parent patent relates to a device for commutating currents in multi-phase windings without mechanical commutators, in which the working winding is connected to the power supply or discharge line via valves and in which an auxiliary alternating current is superimposed on the commutating winding parts to periodically reduce the partial currents in the valves to bring it to zero and make the valves controllable. For this purpose, special transformers are proposed which supply the valves with the auxiliary alternating current via ring lines.



   According to the invention, the same purpose is achieved in that the auxiliary alternating current is fed to the winding parts short-circuited during commutation by transformation via a primary winding which is fixed with respect to the field system and is coaxial with the commutating winding parts, with the commutating parts of the working winding forming the secondary winding.



   This saves the transformers and part of the ring lines for the auxiliary alternating current.



   An exemplary embodiment according to the invention is shown schematically in the drawing. The same letters designate the same parts of the device according to the parent patent. The way the device works is also the same as described in the parent patent. The fixed auxiliary winding coaxial with the commutating part of the working winding is designated by w. The auxiliary
 EMI1.1
 winding t, it is connected to the auxiliary AC voltage and thus forms the primary winding of a transformer with the commutating part of the working force as the secondary winding.

   The alternating voltage applied to the winding w induces an alternating current purely by means of a transformer without the aid of rotation in the weighing groups short-circuited during commutation, which periodically brings the resulting current of the valves in the commutation circuit to the value zero.



   PATENT CLAIMS:
Device for commutating currents in multi-phase oscillations without mechanical commutators according to patent no.115165, in which an auxiliary alternating current is superimposed on the commutating parts of the working winding, which is connected to the current supply or discharge line via controlled valves, in order to reduce the partial currents in the valves periodically bring the value to zero and make the valves controllable, characterized in that the auxiliary alternating current is fed to the winding parts short-circuited during commutation by transformation via a primary winding (w) which is fixed with respect to the field system and is coaxial with the commutating winding parts, whereby the commutating Parts of the working winding (f) form the secondary winding.

   

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

 

Claims (1)

*) Erstes Zusatzpatent Nr. 118534, zweites Znsatzpatent Nr. 118967. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. *) First additional patent No. 118534, second additional patent No. 118967. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT119426D 1927-10-15 1929-08-09 Device for commutating currents in multi-phase windings. AT119426B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE115165X 1927-10-15
DE119426X 1928-08-31

Publications (1)

Publication Number Publication Date
AT119426B true AT119426B (en) 1930-10-25

Family

ID=29403270

Family Applications (1)

Application Number Title Priority Date Filing Date
AT119426D AT119426B (en) 1927-10-15 1929-08-09 Device for commutating currents in multi-phase windings.

Country Status (1)

Country Link
AT (1) AT119426B (en)

Similar Documents

Publication Publication Date Title
AT119426B (en) Device for commutating currents in multi-phase windings.
DE640872C (en) Arrangement for the excitation of synchronous machines
DE568690C (en) Arrangement for achieving a symmetrical load distribution in the phases of a three-phase network that feeds a single-phase consumer
DE604985C (en) Arrangement for voltage regulation in three-phase networks
DE915113C (en) Device for maintaining the voltage of a single-phase alternator
AT126518B (en) Method for keeping control currents of non-network frequency away from parts of a superimposed power network.
DE517927C (en) Oil switch with bushing current transformers
DE895194C (en) AC shunt motor with capacitive resistance switched into the secondary circuit via a transformer
DE655888C (en) Arrangement for the excitation of commutator machines connected to the secondary circuit of an asynchronous machine
DE522294C (en) Device for converting three-phase current via two-phase current to single-phase current, especially for welding purposes
AT108331B (en) Arrangement for speed control or phase compensation of induction machines.
DE398537C (en) Circuit arrangement of the overcurrent protection of lines connected in parallel by means of one or more relays built in the manner of a water relay
AT123323B (en) Exciting machine for a commutator rear machine connected in cascade with an induction motor.
AT98362B (en) Transformer for converting two-phase electricity into three-phase electricity.
AT106588B (en) Rotating rectifier.
AT119416B (en) Bushing current transformer arrangement on oil switches.
AT119424B (en) Arrangement for zero point regulation of the voltage in rectifier systems.
DE609295C (en) Transformer circuit for evenly distributing the power to metal vapor rectifiers working in parallel with six phases
DE417895C (en) Protection circuit for alternators
DE524162C (en) Relays for the protection of alternating current machines
DE376035C (en) Device to reduce the potential difference between the two windings of a high voltage transformer
AT113045B (en) AC signal device.
DE533144C (en) Arrangement to reduce the influence of the inductive voltage drop in alternating current circuits with variable frequency
AT93763B (en) Device for voltage regulation of rectifier systems.
DE571395C (en) Installation on AC series motors that are operated with regenerative braking