DE555712C - Voltage regulation of three-phase systems - Google Patents

Voltage regulation of three-phase systems

Info

Publication number
DE555712C
DE555712C DES64158D DES0064158D DE555712C DE 555712 C DE555712 C DE 555712C DE S64158 D DES64158 D DE S64158D DE S0064158 D DES0064158 D DE S0064158D DE 555712 C DE555712 C DE 555712C
Authority
DE
Germany
Prior art keywords
additional
voltage
voltage regulation
phase systems
phase
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DES64158D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VEM Sachsenwerk GmbH
Original Assignee
Sachsenwerk Licht und Kraft AG
Publication date
Priority to DES64158D priority Critical patent/DE555712C/en
Application granted granted Critical
Publication of DE555712C publication Critical patent/DE555712C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/12Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/24Regulating voltage or current wherein the variable actually regulated by the final control device is ac using bucking or boosting transformers as final control devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Ac-Ac Conversion (AREA)

Description

Spannungsregelung von Drehstromanlagen nach Patent 553 153 Im Hauptpatent ist die Spannungsregelung von Drehstromanlagen mit Zusatztransformatoren beschrieben, bei der Zwischenstufen: in der zugesetzten Spannung dadurch erreicht werden, daß die drei Abteilungen der Erregerwicklung des Zusatztransformators der Reihe nach an Spannungen des Drehstromsy'stems von verschiedener Phasenlage angeschlossen werden.Voltage regulation of three-phase systems according to patent 553 153 in the main patent the voltage regulation of three-phase systems with additional transformers is described, at the intermediate stages: in the added voltage can be achieved in that the three departments of the excitation winding of the auxiliary transformer one after the other be connected to voltages of the three-phase system with different phase positions.

Die niedrige Eigenimpedanz von Zusatztransformatoren bringt es mit sich, daß diese ohne Verwendung besonderer Schutzmittel den mechanischen Beanspruchungen durch Kurzschlüsse im allgemeinen nicht gewachsen sind. Anderseits wird bei Vornahme der Spannungsregulierung mit Hilfe von Anzapfungen am Haupttransformator die Kurzschlußfestigkeit des letzteren ebenfalls beeinträchtigt.The low self-impedance of additional transformers brings it with it that this can withstand mechanical stresses without the use of special protective equipment have generally not grown due to short circuits. On the other hand, when making the voltage regulation with the help of taps on the main transformer the short-circuit strength the latter is also affected.

Nachstehend beschriebene Erfindung ist eine Weiterbildung der im Hauptpatent beschriebenen Spannungsregelung, die es ermöglicht, ohne die Aufstellung eines besonderen Zusatztransformators Zwischenstufen in der zu- oder abgesetzten Spannung zu erreichen. Zu diesem Zweck wird die Zusatzspannung in an sich bekannter Weise im Haupttransformator selbst mittels Zusatzwindungen erzeugt. Die mit je einer Phasenwicklung zusammenwirkenden Zusatzwindungen werden erfindungsgemäß von je einem der drei Schenkel erregt. Der Vektor jeder Zusatzspannung wird der Reihe nach in die gleiche Lage gebracht, wie dies im Hauptpatent näher beschrieben ist. Gegenüber der Anordnung von Anzapfungen im Haupttransformator besteht der Vorteil einer geringeren Klemmenzahl; vor allem aber besteht der Unterschied, daß für alle Spannungsstufen nur eine konstante Zusatzspannung in jeder Phase ,erzeugt wird, wodurch es ermöglicht ist, die Zusatzspule, etwa durch Verteilung ihrer Windungen auf die ganze Spulenhöhe der Hauptwicklungen, so anzuordnen, daß die Kurzschlußfestigkeit des Transformators in keiner Weise beeinträchtigt wird. Die Einstellung auf die Zusatzspannung Null erfolgt bei dieser Ausführung einfach durch Abschalten der Zusatzwindungen. Das Umschalten auf andere Spannungsstufen kann ebenfalls in einfacher Weise, entweder durch Umklemmen oder, ähnlich wie im Hauptpatent beschrieben, mit Hilfe von Schaltapparaten erfolgen.The invention described below is a further development of the voltage regulation described in the main patent, which makes it possible to achieve intermediate stages in the added or reduced voltage without the installation of a special additional transformer. For this purpose, the additional voltage is generated in a manner known per se in the main transformer itself by means of additional windings. According to the invention, the additional turns interacting with one phase winding each are excited by one of the three legs. The vector of each additional voltage is sequentially brought into the same position, as described in more detail in the main patent. Compared to the arrangement of taps in the main transformer, there is the advantage of a lower number of terminals; Above all, there is the difference that only one constant additional voltage is generated in each phase for all voltage levels, which makes it possible to arrange the additional coil, for example by distributing its turns over the entire coil height of the main windings, so that the short-circuit strength of the transformer is not affected in any way. The setting to the additional voltage zero takes place in this version simply by switching off the additional windings. Switching to other voltage levels can also be done in a simple manner, either by reconnecting or, similar to that described in the main patent, with the aid of switching devices.

Die Zusatzwindungen können auch im Primärkreis des Haupttransformators angeordnet werden und wahlweise auf die Erregung der drei Schenkel einwirken.The additional turns can also be in the primary circuit of the main transformer are arranged and optionally act on the excitation of the three legs.

Claims (1)

PATENTANSPRÜCHE: i. Spannungsregelung von Drehstromanlagen nach Patent 553 153, dadurch gekennzeichnet, daß die Zusatzspannung mit Hilfe von Zusatzwindungen im Haupttransformator erzeugt wird in sonst für zuzuschaltende Spannungsstufen bekannter Schaltungsanordnung, und daß die mit der einzelnen Phasenwicklung zusammenarbeitenden Zusatzwindungen wahlweise von je einem der Schenkel erregt werden. z. Spannungsregelung von Drehstromanlagen nach Anspruch i, dadurch gekennzeichnet, daß die Zusatzwindungen in den Primärkreis des Haupttransformators verlegt sind und wahlweise auf die Erregung der drei Schenkeleinwirken.PATENT CLAIMS: i. Voltage regulation of three-phase systems according to Patent 553 153, characterized in that the additional voltage is generated with the aid of additional windings in the main transformer in circuit arrangements otherwise known for voltage levels to be switched on, and that the additional windings cooperating with the individual phase winding are optionally excited by one of the legs each. z. Voltage regulation of three-phase systems according to claim i, characterized in that the additional windings are laid in the primary circuit of the main transformer and optionally act on the excitation of the three legs.
DES64158D Voltage regulation of three-phase systems Expired DE555712C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES64158D DE555712C (en) Voltage regulation of three-phase systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES64158D DE555712C (en) Voltage regulation of three-phase systems

Publications (1)

Publication Number Publication Date
DE555712C true DE555712C (en) 1932-07-28

Family

ID=7496944

Family Applications (1)

Application Number Title Priority Date Filing Date
DES64158D Expired DE555712C (en) Voltage regulation of three-phase systems

Country Status (1)

Country Link
DE (1) DE555712C (en)

Similar Documents

Publication Publication Date Title
DE555712C (en) Voltage regulation of three-phase systems
DE566700C (en) Phantom circuit
DE656374C (en) Arrangement for regulating or stabilizing AC power lines
DE490881C (en) Choke coil for three-phase systems
DE609295C (en) Transformer circuit for evenly distributing the power to metal vapor rectifiers working in parallel with six phases
DE397821C (en) Device for connecting voltage coils to three-phase power transformers
DE730286C (en) Three-phase regulating transformer set consisting of two single-phase thrust transformers operated in a Scott circuit
DE667093C (en) Device to increase the stability of AC power lines or machines or networks working in parallel
DE595470C (en) Transformer for converting three-phase current into multi-phase current for rectifier
DE604985C (en) Arrangement for voltage regulation in three-phase networks
DE718671C (en) Tapping transformer for high power with concentric windings on the high voltage side
DE734581C (en) Three-phase voltage regulation device with voltage dividers fed by the voltage to be regulated
DE704392C (en) Arrangement for suppressing the harmonics in networks with one or more transformers or reactors
DE889798C (en) Arrangement in electrical alternating current machines to limit the compensating currents that occur in the event of faults in the insulation between partial conductors connected in parallel
DE646827C (en) Multiple converters
DE544912C (en) Circuit for a delta-connected regulating transformer that works with a main transformer and is connected to the mains
DE733815C (en) Arrangement for suppressing the harmonics with an ordinal number divisible by 3 in the flux of direct-current pre-magnetized three-phase choke coils or transformers
DE603831C (en) Arrangement of blocking chains for harmonics that are switched on in power circuits, especially in DC circuits
AT80848B (en) Device for identifying coil defects. Device for identifying coil defects.
DE554017C (en) Regulating device for step transformers, in particular for those whose windings at least one is provided with taps
DE909480C (en) Protective reactor
DE373352C (en) Device for converting three-phase current into multi-phase current with a number of phases divisible by 3
DE911290C (en) Choke coil or transformer with multiple iron cores
AT131526B (en) Device for switching off multi-phase lines.
AT111696B (en) Transformer without iron to protect overhead lines.