DE607080C - Device for remote control of blocking circuits in high-voltage networks overlaid with control currents of non-network frequency - Google Patents

Device for remote control of blocking circuits in high-voltage networks overlaid with control currents of non-network frequency

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Publication number
DE607080C
DE607080C DE1930607080D DE607080DD DE607080C DE 607080 C DE607080 C DE 607080C DE 1930607080 D DE1930607080 D DE 1930607080D DE 607080D D DE607080D D DE 607080DD DE 607080 C DE607080 C DE 607080C
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DE
Germany
Prior art keywords
phase
blocking
network
generator
control
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
DE1930607080D
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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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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Publication date
Application filed by Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Application granted granted Critical
Publication of DE607080C publication Critical patent/DE607080C/en
Expired legal-status Critical Current

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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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Description

Einrichtung zum Fernsteuern von Sperrkreisen in mit Steuerströmen netzfremder Frequenz überlagerten Starkstromnetzen In mit Steuerströmen netzfremder Frequenz überlagerten Starkstromnetzen werden bekanntlich einzelne Netzteile. gegen die Steuerenergie abgesperrt durch Sperrkreise, die beispielsweise aus einer in den Zug des Netzleiters eingeschalteten Drosselspule und einem dazu parallel liegenden Kondensator bestehen. Ein solcher Kreis wirkt immer nur sperrend für die Frequenz, auf die er abgestimmt ist. In der Regel werden aber für verschiedene Schaltvorgänge verschiedene Sendefrequenzen verwendet. Um auch in diesem Falle eine vollständige Absperrung zu erzielen, stimmt man den Sperrkreis jeweils vor Sendung einer bestimmten Frequenz auf diese Frequenz ab. Beispielsweise können mit einer Vorfrequenz an den Sperrstellen Maschinen angelassen werden, die in vorher zu bestimmenden Zeitabständen die Fortschaltung eines Regelarmes bewirken, der die Sperrkreise auf die jeweils gesendete Frequenz abstimmt. Bei einer derartigen Einrichtung ist es jedoch sehr schwierig, Übereinstimmung zwischen der jeweiligen, beispielsweise einem Frequenzband entnommenen Sendefrequenz und der Resonanzfrequenz des oder der Sperrkreise mit genügender Genauigkeit zu schaffen. Diese Schwierigkeiten werden durch die Erfindung beseitigt.Device for remote control of blocking circuits in with control currents non-network frequency superimposed heavy current networks In with control currents of non-network As is well known, individual power supply units are superimposed on frequency. against the control energy is blocked by blocking circuits, for example from an in the train of the line conductor switched on and a choke coil lying parallel to it Condenser exist. Such a circle only has a blocking effect on the frequency, to which it is tuned. As a rule, however, they are used for different switching operations different transmission frequencies are used. In order to get a complete To achieve barrier, one agrees the blocking circle before sending a certain one Frequency down to this frequency. For example, with a pre-frequency to the Blocking machines are started at intervals to be determined in advance cause the switching of a control arm, which the blocking circuits on each the transmitted frequency. However, with such a device, it is very much difficult to match between the respective, for example a frequency band extracted transmission frequency and the resonance frequency of the trap or circuits with to create sufficient accuracy. These difficulties are alleviated by the invention eliminated.

Die Erfindung setzt eine Fernsteueranlage voraus, bei der während jeder Sendung der Sender in einer bestimmten Zeit einen gewissen Frequenzbereich durchläuft. Aus diesem Frequenzbereich werden dann in an sich bekannter Weise die benötigten Steuerfrequenzen durch sogenannte Fiequenzwähler ausgesiebt.The invention requires a remote control system in which during each broadcast of the transmitter in a certain time a certain frequency range passes through. From this frequency range, the required control frequencies are screened out by so-called frequency selectors.

Erfindungsgemäß sind die zum Regulieren der Sperrkreise dienenden Vorrichtungen an einen besonderen Stromkreis angeschlossen, welcher ganz oder teilweise aus den Leitungen des Starkstromnetzes besteht. In diesen Stromkreis schickt man von der Überlagerungszentrale aus zu den zwischen zwei Sendefrequenzen liegenden Zeitpunkten einen Stromstoß, der die zum Abstimmen der Sperrkreise dienenden Vorrichtungen zum Ansprechen bringt. Am zweckmäßigsten verwendet man zum Steuern der Sperrorgane Einphasenwechselstrom. Da die induktiven Leitungswiderstände bei Kabeln und Freileitungen für die einphasigen Wechselströme größer sind als für die mehrphasigen, sind dabei die einphasig gegebenen Steuerfrequenzen in tieferen Bereichen zu halten als die mehrphasigen, um mit annähernd gleich günstigen Verhältnissen zu arbeiten.According to the invention are those used to regulate the blocking circuits Devices connected to a special circuit, which in whole or in part consists of the lines of the power network. You send into this circuit from the overlay center to those between two transmission frequencies Points in time of a current surge, which the devices used to tune the trap circuits to respond. It is most useful to use it to control the locking devices Single phase alternating current. Because the inductive line resistances in cables and overhead lines for single-phase alternating currents are greater than for multi-phase currents, are included to keep the single-phase given control frequencies in lower ranges than that multi-phase in order to work with almost equally favorable conditions.

In der Zeichnung ist ein Ausführungsbeispiel des Gegenstandes der Erfindung schematisch dargestellt.In the drawing is an embodiment of the subject matter of Invention shown schematically.

Das Netz i, zwischen dessen Leiter die Empfangsrelais a angeschlossen sind, wird von dem in Stern geschalteten Transformator 3 gespeist. q, ist ein dreiphasiger Überlagerungsgenerator, der über den Aufdrücktransformator 5, die Abstimmkreise 6 und die Schalter 7 an das Starkstromnetz i angeschlossen ist. 8 ist ein Abzweig des Netzes i., der gegen die vom Generator 4 gelieferte Steuerenergie durch die Sperrkreise 9 abgesperrt werden soll. Zwischen den Nullpunkt der Transformatorwicklung 3 und Erde ist über den Abstimmkreis io der Einphasengenerator i i eingeschaltet. An der Sperrstelle 9 liegt zwischen einer Phase des Netzes i und Erde das Relais 12 und der auf die Netzfrequenz abgestimmte Sperrkreis i3. Das Relais 12 öffnet und schließt den Stromkreis des Fortschalteschützes 14, das über die mechanische Kraftleitung 15 die Sperrkreise 9 abstimmt.The network i, between the conductors of which the receiving relays a are connected, is fed by the transformer 3 connected in star. q, is a three-phase superposition generator which is connected to the power network i via the step-up transformer 5, the tuning circuits 6 and the switches 7. 8 is a branch of the network i., Which is to be blocked by the blocking circuits 9 against the control energy supplied by the generator 4. The single-phase generator ii is switched on between the zero point of the transformer winding 3 and earth via the tuning circuit io. At the blocking point 9, the relay 12 and the blocking circuit i3, which is tuned to the network frequency, are located between a phase of the network i and earth. The relay 12 opens and closes the circuit of the further switching contactor 14, which tunes the blocking circuits 9 through the mechanical power line 1. 5

Die Einrichtung arbeitet auf folgende Weise: Mit dem Überlagerungsgenerator 4 wird gleichzeitig der Hilfsgenerator i i in Gang gesetzt, der mit konstanter Frequenz läuft. Seine Erregung wird jedesmal eingeschaltet, wenn der Hauptgenerator 4 eine bestimmte Drehzahl hat, die zwischen zwei Sendefrequenzen liegt. Das Einschalten der Erregerwicklung des Hilfsgenerators i i kann beispielsweise mit Hilfe eines Satzes Frequenzwähler vorgenommen werden. Beim jedesmaligen Einschalten der Erregerwicklung des Generators i i wird ein Steuerstrom über Erde ins Netz gesendet, der an der Sperrstelle das Relais i2 zum Ansprechen bringt, das seinerseits über das Fortschalteschütz 14 und die Kraftleitung 15 die Sperrkreise g weiterschaltet. Der gleiche Stromstoß kann an einer Reihe von Sperrstellen in der gleichen Weise verwendet werden. Der letzte Impuls schaltet den Sperrkreis auf die Ausgangsstellung zurück und den Generator i i aus.The setup works in the following way: With the overlay generator 4, the auxiliary generator i i is set in motion at the same time, the one with constant frequency runs. Its excitation is turned on every time the main generator 4 has a has a certain speed that lies between two transmission frequencies. Switching on the excitation winding of the auxiliary generator i i can, for example, with the help of a Set of frequency selectors. Each time the field winding is switched on of the generator i i a control current is sent via earth into the network, which is connected to the Locking point causes relay i2 to respond, which in turn via the incremental contactor 14 and the power line 15 advances the blocking circuits g. The same rush of electricity can be used in the same way at a number of locking points. Of the last pulse switches the blocking circuit back to the starting position and the generator i i off.

Die Fortleitung der Stromimpulse kann, wie in der Zeichnung gestrichelt angedeutet, über den Nulleiter 16, wenn dieser vorhanden ist, vorgenommen werden.The transmission of the current pulses can, as dashed in the drawing indicated, can be made via the neutral conductor 16, if this is present.

Statt eines Hilfsgenerators kann auch eine Phase des Überlagerungsgenerators 4 zwischen Erde und Nullpunkt gelegt sein. Auch kann man die Aufdrückorgane selbst zur Erdüberlagerung benutzen, indem man den Sternpunkt des Aufdrücktransformators 5 erdet und zu dem Zeitpunkt, wo die Sperrkreise weiterzuschalten sind, einen überlagerungsimpuls ans Netz gibt, indem man nur einen der Schalter 7 (im Ausführungsbeispiel den mittleren) schließt. Auf diese Weise wird eine der drei Phasen des Netzes erdüberlagert. Die Relais an den Sperrstellen müssen dann an diese Phase angeschlossen sein. Oder es kann ein mit dem Hauptgenerator gekuppelter Generator gleicher Polzahl für diesen Zweck verwendet werden.Instead of an auxiliary generator, a phase of the superimposition generator can also be used 4 must be placed between earth and zero. You can also use the press-on organs themselves to superimpose the earth by placing the star point of the push-on transformer 5 grounds and at the point in time when the trap circuits are to be switched on, a superimposition pulse to the network by only one of the switches 7 (in the example the middle one) closes. In this way, one of the three phases of the network is overlaid. the Relays at the locking points must then be connected to this phase. Or it a generator coupled to the main generator can have the same number of poles for it Purpose to be used.

Bei den beiden zuletzt erwähnten Überlagerungsarten ist an der Sperrstelle ein Satz Frequenzwähler vorhanden, welche auf Frequenzen, die zwischen den eigentlichen Überlagerungsfrequenzen liegen, abgestimmt sind. Diese Frequenzwähler erfüllen entweder alle die gleiche Funktion (Fortschaltung des Sperrkreises), oder aber jeder Frequenzwähler ist einer anderen Kontaktstellung des Sperrkreises zugeordnet.In the case of the last two types of overlay mentioned, is at the blocking point A set of frequency selectors is available which selects frequencies that are between the actual Superposition frequencies lie, are matched. These frequency selectors meet either all have the same function (switching of the blocking circuit), or each frequency selector is assigned to a different contact position of the blocking circuit.

Die Einrichtung gemäß der Erfindung bietet den Vorteil, daß die Sperrkreise von der Überlagerungszentrale aus fernsteuerbar sind und daß die hierzu verwendeten Steuerströme nicht auf demselben Weg ins Netz geschickt werden, auf dem nachher die eigentliche Steuerenergie überlagert wird. Ein Abwandern von Steuerströmen in abzusperrende Netzteile ist dadurch unmöglich gemacht.The device according to the invention offers the advantage that the blocking circuits are remotely controllable from the overlay center and that the used for this purpose Control streams are not sent into the network in the same way as afterwards the actual control energy is superimposed. A migration of control streams in This makes it impossible to shut off power supplies.

Claims (7)

PATENTANSPR-ÜCHE i. Einrichtung zum Fernsteuern von Sperrkreisen in mit Steuerströmen netzfremder Frequenz überlagerten Starkstromnetzen, dadurch gekennzeichnet, daß die zum automatischen Fernsteuern der Sperrkreise dienenden Vorrichtungen an einen besonderen Stromkreis angeschlossen sind, welcher ganz oder teilweise aus den Leitungen des Starkstromnetzes besteht. PATENT CLAIMS i. Device for remote control of blocking circuits in Power networks superimposed with control currents of non-network frequency, characterized in that that the devices used for the automatic remote control of the trap circuits a special circuit are connected, which wholly or partially the lines of the power network. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß zum Fernsteuern der Sperrkreise Einphasenstrom dient, der die Starkstrom führenden Leiter gleichphasig durchfließt und seinen Rückweg über Erde oder den Nulleiter nimmt. 2. Device according to claim i, characterized characterized in that single-phase current is used to remotely control the blocking circuits, which the High-voltage conductor flows through it in phase and its way back via earth or take the neutral. 3. Einrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß an den Sternpunkt des Netzes und an Erde oder an den Nulleiter ein mit konstanter Frequenz laufender Hilfsgenerator angeschlossen ist, dessen Erregung durch vom Sendegenerator betätigte Frequenzwähler zwischen zwei Sendefrequenzen eingeschaltet wird. 3. Device according to claim i and 2, characterized in that that at the star point of the network and at earth or at the neutral conductor a with constant Frequency running auxiliary generator is connected, the excitation of which by the transmitter generator activated frequency selector is switched on between two transmission frequencies. 4. Einrichtung nach Anspruch i bis 3, dadurch gekennzeichnet, daß der Einphasensteuerstrom an der Sperrstelle ein Relais betätigt, das die Sperrkreise gegebenenfalls über ein Fortschalteschütz weiterschaltet. 4. Establishment according to claim i to 3, characterized in that the single-phase control current at the Blocking point actuates a relay which, if necessary, the blocking circuits via an incremental contactor advances. 5. Einrichtung nach Anspruch i und 2, dadurch gekennzeichnet, daß eine Phase des Überlagerungsgenerators zwischen dem Nullpunkt des Netzes und Erde liegt. . 5. Device according to claim i and 2, characterized in that a phase of the superposition generator between the zero point of the network and earth lies. . 6. Einrichtung nach Anspruch z und 2, dadurch gekennzeichnet, daß der Sternpunkt des Überlagerungsgenerators .geerdet und zu den zwischen zwei Sendefrequenzen liegenden Zeitpunkten der Sendegenerator nur einphasig an das Netz angeschlossen ist. 6. Device according to claim z and 2, characterized in that that the star point of the superposition generator .grounded and to the between two Transmission frequencies lying times of the transmission generator only single-phase to the network connected. 7. Einrichtung nach Anspruch 5 und 6, dadurch gekennzeichnet, daß an der Sperrstelle zwischen Phase und Erde oder Nullleiter angeordnete, auf zwischen den überlagerungsfrequenzen liegende Frequenzen abgestimmte Frequenzwähler die Sperrkreise regulieren.7. Device according to claim 5 and 6, characterized in that that arranged at the blocking point between phase and earth or neutral conductor frequencies between the superimposed frequencies, tuned frequency selectors regulate the blocking circuits.
DE1930607080D 1930-02-28 1930-02-28 Device for remote control of blocking circuits in high-voltage networks overlaid with control currents of non-network frequency Expired DE607080C (en)

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DE607080T 1930-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966754C (en) * 1951-09-02 1957-09-05 Gerhard Nehlsen Dr Ing Device and circuit for advancing and retracting saws, especially hot iron saws

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966754C (en) * 1951-09-02 1957-09-05 Gerhard Nehlsen Dr Ing Device and circuit for advancing and retracting saws, especially hot iron saws

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