DE513810C - Device for superimposing auxiliary frequencies over high-current conductors - Google Patents

Device for superimposing auxiliary frequencies over high-current conductors

Info

Publication number
DE513810C
DE513810C DEI33070D DEI0033070D DE513810C DE 513810 C DE513810 C DE 513810C DE I33070 D DEI33070 D DE I33070D DE I0033070 D DEI0033070 D DE I0033070D DE 513810 C DE513810 C DE 513810C
Authority
DE
Germany
Prior art keywords
winding
current
superimposing
transformer
over high
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
DEI33070D
Other languages
German (de)
Inventor
Dipl-Ing Alois Daunderer
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.)
Isaria Zaehlerwerke A G
Original Assignee
Isaria Zaehlerwerke A G
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 Isaria Zaehlerwerke A G filed Critical Isaria Zaehlerwerke A G
Priority to DEI33070D priority Critical patent/DE513810C/en
Application granted granted Critical
Publication of DE513810C publication Critical patent/DE513810C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
    • H02J13/00009—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission using pulsed signals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Description

Einrichtung zur Überlagerung von Hilfsfrequenzen über starkstromführende Leiter Die Überlagerung von Hilfsfrequenzen über starkstromführende Leiter kann mit Hilfe von Übertragungstransformatoren geschehen, die in Serie in die Netzleitung eingeschaltet sind. Da durch den i Netzstrom eine sehr starke Vormagnetisierung des Transformatorkernes bewirkt wird, wird der Wirkungsgrad für die Übertragung der Tonfrequenz sehr stark beeinträchtigt. Mit Rücksicht darauf, daß die durch den Netzstrom bewirkte Vormagnetisierung wesentlich größer als die Hilfsfrequenzmagnetisierung wird, muß der Transformator lediglich mit Rücksicht auf den Netzstrom sehr groß bemessen werden, da die Sättigungsgrenze des Magnetkernes nicht erreicht werden darf. Derartige Transformatoren sind sehr kostspielig.Device for superimposing auxiliary frequencies over high-current carrying Conductor The superposition of auxiliary frequencies via conductors carrying high currents can done with the help of transmission transformers that are in series in the power line are switched on. There is a very strong bias due to the mains current the transformer core is effected, the efficiency for the transmission the audio frequency is very badly affected. With regard to the fact that the Mains current caused the premagnetization to be significantly greater than the auxiliary frequency magnetization becomes, the transformer only has to be very large in view of the mains current be dimensioned, since the saturation limit of the magnetic core cannot be reached allowed. Such transformers are very expensive.

Gemäß der Erfindung wird die durch den Netzstrom bewirkte Vormagnetisierung des Transformators durch eine Gegenmagnetisierungswicklung aufgehoben. Hierdurch wird erreicht, daß der Transformator wesentlich kleiner bemessen werden kann und der Wirkungsgrad verbessert wird.According to the invention, the bias caused by the mains current is of the transformer canceled by a counter magnetization winding. Through this it is achieved that the transformer can be made much smaller and the efficiency is improved.

Einige Ausführungsformen werden an Hand der Zeichnung erörtert. In Abb. r ist mit a die von Netzstrom durchflossene Transformatorwicklung bezeichnet. Die Überlagerung erfolgt durch die Transformatorspule b, welche von dem Hilfsfrequenzgenerator c gespeist wird. Erfindungsgemäß wird nun auf demselben Transformator die dritte Wicklung d angeordnet, welche so bemessen ist, daß sie die durch den Netzstrom bewirkte Vormagnetisierung aufhebt. Sie kann von einer eigenen Stromquelle c gespeist werden. Es wird nun bei Überlagerung der Hilfsfrequenz auf das Netz auch gleichzeitig in der Spule d eine Hilfsfrequenzspannung erzeugt, welche über den Stromerzeuger e einen Hilfsfrequenzstrom verursacht und den Hilf sfrequenzgenerator unnötig belastet. Um nun diesen Strom möglichst zu schwächen, wird in diesen Stromkreis eine Drossel f oder ein Sperrkreis eingebaut, wodurch bei der letzteren Anordnung auch noch die Entstehung eines Blindstromes vermieden wird. Diese Anordnung zeigt die Abb. a, bei welcher mit f wieder die Drossel und mit g der zur Drossel parallel geschaltete Kondensator bezeichnet ist. Die Abb. 3 zeigt eine weitere Ausführungsform, bei welcher die in der Gegenmagnetisierungswicklung induzierte Hilfsfrequenzspannung durch Aufdrücken einer entgegengesetzt gerichteten Hilfsfrequenzspannung gleicher Periodenzahl und Phase auf den Entmagnetisierungsstromkreis unwirksam gemacht wird. Mit h ist die im. Entmagnetisierungsstromkreis liegendeSekundär- Wicklung und mit i die vom Hilfsfrequenzgenerator aus gespeiste Primärwicklung bezeichnet.Some embodiments are discussed with reference to the drawing. In Fig. R denotes the transformer winding through which mains current flows, with a. The superposition takes place through the transformer coil b, which is from the auxiliary frequency generator c is fed. According to the invention, the third is now on the same transformer Winding d arranged, which is dimensioned so that it caused the by the mains current Cancels premagnetization. It can be fed from its own power source c. When the auxiliary frequency is superimposed on the network, it is also simultaneously in the coil d generates an auxiliary frequency voltage, which via the power generator e causes an auxiliary frequency current and unnecessarily loads the auxiliary frequency generator. In order to weaken this current as much as possible, a choke is placed in this circuit f or a trap circuit built in, whereby in the latter arrangement also the The creation of a reactive current is avoided. This arrangement is shown in Fig. A, in which with f again the throttle and with g the one connected in parallel to the throttle Capacitor is designated. Fig. 3 shows a further embodiment in which the auxiliary frequency voltage induced in the counter magnetization winding by pressing an oppositely directed auxiliary frequency voltage with the same number of periods and Phase on the degaussing circuit is made ineffective. With h is the in the. Secondary demagnetization circuit Winding and with i denotes the primary winding fed by the auxiliary frequency generator.

Der Hauptvorteil des Erfindungsgegenstandes liegt darin, daß er für alle Netzarten verwendet werden kann und sich den jeweiligen Belastungsverhältnissen durch Regelung des Stromes in der Entmagnetisierungswicklung anpassen läßt.The main advantage of the subject invention is that it is for all network types can be used and the respective load conditions can be adjusted by regulating the current in the degaussing winding.

Claims (1)

PATENTANSPRÜCHE: r. Einrichtung zur Überlagerung von Hilfsfrequenzen über starkstromführende Leiter mit einem Überlagerungstransformator, dessen eine Wicklung in den Zug des zu überlagernden Netzleiters und dessen andere Wicklung in den Stromkreis der Cberlagerungsstromquelle eingeschaltet ist, dadurch gekennzeichnet, daß mit diesen beiden Wicklungen magnetisch noch eine dritte Wicklung verkettet ist, die mit einem die Netzstrommagnetisierung des Transformators wenigstens.annähernd aufhebenden Strom gespeist Wird. Einrichtung nach Anspruch r, dadurch gekennzeichnet, daß die in dem Gegenmagnetisierungsstromkreis induzierten Hilfsfrequenzströme durch Einbau von Drosseln oder Sperrkreisen geschwächt werden. 3. Einrichtung nach Anspruch x, dadurch gekennzeichnet, daß die in der Gegenmagnetisierungswicklung induzierte Hilfsfrequenzspannung durch überlagerung einer entgegengesetzt gerichteten Spannung gleicher Größe und Periodenzahl auf den Entmagnetisierungsstromkreis aufgehoben wird.PATENT CLAIMS: r. Device for superimposing auxiliary frequencies over high-current conductors with a superimposition transformer, one of which Winding in the train of the power line to be superimposed and its other winding is switched on in the circuit of the superimposed current source, characterized in that that a third winding is linked magnetically to these two windings is that with a mains current magnetization of the transformer at least.approximately Canceling current is fed. Device according to claim r, characterized in that that the induced in the counter magnetization auxiliary frequency currents through Installation of chokes or blocking circuits can be weakened. 3. Device according to claim x, characterized in that the induced in the counter magnetization winding Auxiliary frequency voltage by superimposing an oppositely directed voltage of the same size and number of periods on the degaussing circuit will.
DEI33070D 1927-12-30 1927-12-30 Device for superimposing auxiliary frequencies over high-current conductors Expired DE513810C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI33070D DE513810C (en) 1927-12-30 1927-12-30 Device for superimposing auxiliary frequencies over high-current conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI33070D DE513810C (en) 1927-12-30 1927-12-30 Device for superimposing auxiliary frequencies over high-current conductors

Publications (1)

Publication Number Publication Date
DE513810C true DE513810C (en) 1930-12-10

Family

ID=7188310

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI33070D Expired DE513810C (en) 1927-12-30 1927-12-30 Device for superimposing auxiliary frequencies over high-current conductors

Country Status (1)

Country Link
DE (1) DE513810C (en)

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