DE662881C - Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network - Google Patents

Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network

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Publication number
DE662881C
DE662881C DEA79796D DEA0079796D DE662881C DE 662881 C DE662881 C DE 662881C DE A79796 D DEA79796 D DE A79796D DE A0079796 D DEA0079796 D DE A0079796D DE 662881 C DE662881 C DE 662881C
Authority
DE
Germany
Prior art keywords
relay
network
frequency
power supply
alternating currents
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
DEA79796D
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Priority to DEA79796D priority Critical patent/DE662881C/en
Application granted granted Critical
Publication of DE662881C publication Critical patent/DE662881C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/20—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for producing frequency-selective operation of the relay

Landscapes

  • Control Of Ac Motors In General (AREA)

Description

Relais zum Empfang von den Kraftversorgungsnetzen überlagerten Wechselströmen netzfremder Frequenz Bei Fernsteuerung über Kraftübertragungsnetze mittels netzfremder Frequenzen ist .es erforderlich, am Empfangsort die etwa in der Größenordnung von i o/o der Netzspannung sich bewegende überlagerungsfrequenzspannung von der Netzfrequenz zu trennen. Da diese Trennung mit Hilfe der elektrischen Resonanz mit Schwierigkeiten verbunden ist, hat man vielfach außer der elektrischen Resonanz noch zu mechanischen Resonanzmitteln gegriffen. Auch diese werden jedoch durch die Netzfrequenz störend beeinflußt. Erfindungsgemäß wird nun bei einem Relais zum Empfang- von überlagerten Wechselströmen netzfremder Frequenzen der von der Netzfrequenz herrührende Störungseinfluß dadurch vermieden, daß der Relaisanker oder das mechanische Resonanzorgan von zwei phasengleichen, aber in . entgegengesetzter Richtung auf den Relaisanker wirkenden Spulenfeldern erregt wird, von welchen das eine durch den. Strom in einem auf die Ansprechfrequenz des Relais abgestimmten elektrischen. Resonanzkreis, das andere durch die Spannung der Netzphase beeinflußt wird.Relay for receiving alternating currents superimposed on the power supply networks Non-network frequency For remote control via power transmission networks using non-network Frequencies is .es required at the receiving location which are roughly in the order of magnitude of i o / o of the line voltage moving superimposed frequency voltage from the line frequency to separate. Since this separation with the help of electrical resonance is difficult connected, one often has to mechanical in addition to the electrical resonance Means of resonance seized. However, these too are disruptive due to the mains frequency influenced. According to the invention is now in a relay for receiving superimposed Alternating currents of non-network frequencies the influence of interference caused by the network frequency thereby avoided that the relay armature or the mechanical resonance organ of two in phase, but in. acting in the opposite direction on the relay armature Coil fields is excited, one of which by the. Electricity in one on the Response frequency of the relay matched electrical. Resonance circuit, the other is influenced by the voltage of the mains phase.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es ist i das Starkstromnetz, beispielsweise ein Wechselstromdrehleiternetz, das Wechsel- oder Drehstrom führt. Diesem Netz ist auch ein einphasiger Steuerstrom netzfremder Frequenz, beispielsweise ein tonfrequenter Wechselstrom, überlagert, auf welchen der aus dem Kondensator 2 und der Spule 3 bestehende Reihenresonanzkreis abgestimmt ist: q. ist eine Gleichrichterschaltung, im beson deren Trockengleichrichter in Grätzscher Schaltung, 5 das eigentliche Empfangsrelais, dessen -Spule 6 an den Ausgang der Gleichrichterschaltung 4 angeschlossen ist. Die zweite Spüle 7 des Relais 5 liegt über eine weitere Gleichrichterschaltung 8 und einen Widerstand 9 an den gleichen Phasen des Starkstromnetzes i.An exemplary embodiment of the invention is shown schematically in the drawing shown. It is i the heavy current network, for example an alternating current turntable ladder network, that carries alternating or three-phase current. This network is also a single-phase control current non-network frequency, for example an audio-frequency alternating current, superimposed, on which the series resonant circuit consisting of the capacitor 2 and the coil 3 is coordinated: q. is a rectifier circuit, especially its dry rectifier in Grätzsch circuit, 5 the actual receiving relay, whose coil 6 to the Output of the rectifier circuit 4 is connected. The second sink 7 of the relay 5 is via a further rectifier circuit 8 and a resistor 9 to the same phases of the power network i.

Die Netzkomponente, die über den Kreis 2, 3 an die Wicklung 6 des Relais 5 gelangt, wird für den Anker i o des Relais 5 durch die Wicklung 7, die ebenfalls netzabhängig erregt wird, kompensiert. Solange also Fernsteuerfrequenzen dem Netz nicht überlagert sind; wird das Relais 5 nicht erregt. Im Falle der überlagerung sei die Annahme gemacht, daß das Amplitudenverhältnis im elektrischen Resonanzkreis; Netzfrequenz/Fernsteuerfrequenz = i sei, während die Amplitude der dem Netz überlagerten Spannung nur i % betrage. Die Kompensation bleibt dann für die Netzfrequenz bestehen; während die Wirkung des Überlagerungsvorganges nur unbeächtlich wermindert wird.The network component that is connected to the winding 6 of the Relay 5 arrives, is for the armature i o of the relay 5 through the winding 7, the is also excited depending on the network, compensated. So long as remote control frequencies are not superimposed on the network; relay 5 is not energized. In the case of overlay let us assume that the amplitude ratio in the electrical resonance circuit; Network frequency / remote control frequency = i, while the amplitude of the superimposed on the network Voltage is only i%. The compensation then remains for the network frequency; while the effect of the superimposition process is only negligibly reduced.

'Man kann die Einrichtung auch so treffen, däß die beiden Gleichrichterströme ein gemeinsames Spulenfeld in Kompensationsschaltung erzeugen, welches auf den Relaisanker bzw. das oder die mechanischen Resonanzglieder einwirkt.'The device can also be designed in such a way that the two rectifier currents generate a common coil field in compensation circuit, which on the relay armature or the mechanical resonance element or elements acts.

Claims (3)

PA T.LN TANSPRÜCIIE.:. i. Relais zum Empfang von den Kraftversorgungsnetzen überlagerten Wechselströmen netzfremder Frequenz, dadurch gekennzeichnet, daß der Relaisanker oder das mechanische Resonanzorgan von zwei phasengleichen, aber in entgegengesetzter Richtung auf den Relaisanker wirkenden Spulenfeldern erregt wird, von welchen das eine durch den Strom in einem auf die 9 Ansprechfrequenz des Relais abgestimmten elektrischen Resonanzkreis, das andere durch die Spannung der Netzphase beeinflußt wird. PA T.LN TANSPRÜCIIE.:. i. Relay for receiving from the power supply networks superimposed alternating currents of non-network frequency, characterized in that the Relay armature or the mechanical resonance organ of two in phase but in coil fields acting on the relay armature in the opposite direction are excited, one of which by the current in one on the 9 response frequency of the relay tuned electrical resonance circuit, the other by the voltage of the mains phase being affected. 2. Relais nach Anspruch i, dadurch gekennzeichnet, däß die dem Resonanzkreis und der Netzphase entnommenen Ströme nach Gleichrichtung mittels zweier Spulenfelder in Kompensationsschaltung einen gemeinsamen Relaisanker oder ein mechanisches Resonanzorgan beeinflussen. 2. Relay according to claim i, characterized in that the dem Resonant circuit and the mains phase taken currents after rectification by means of two Coil fields in compensation circuit have a common relay armature or a mechanical one Affect the resonance organ. 3. Relais nach Anspruch i und 2, dadurch gekennzeichnet, daß die beiden Gleichrichterströme ein gemeinsames Spulenfeld in Kompensationsschaltung erzeugen, -welches auf den Relaisanker bzw. das oder die mechanischen Resonanzglieder einwirkt.3. Relay according to claim i and 2, characterized in that that the two rectifier currents have a common coil field in compensation circuit generate, -which on the relay armature or the mechanical resonance element (s) acts.
DEA79796D Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network Expired DE662881C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA79796D DE662881C (en) Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA79796D DE662881C (en) Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network

Publications (1)

Publication Number Publication Date
DE662881C true DE662881C (en) 1938-07-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEA79796D Expired DE662881C (en) Relay for receiving alternating currents superimposed on the power supply networks with a frequency not connected to the network

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DE (1) DE662881C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457011A (en) * 1945-06-02 1948-12-21 Westinghouse Electric Corp Electric circuit for electromagnets
US2590393A (en) * 1948-09-22 1952-03-25 Clark Controller Co Frequency relay
DE1108729B (en) * 1956-01-17 1961-06-15 Bbc Brown Boveri & Cie Circuit for the transmission of control commands, signals or messages from command posts located anywhere on a train to the locomotives that are also running anywhere on the train
US2998551A (en) * 1958-07-24 1961-08-29 Automatic Switch Co Frequency-responsive relay system
DE1147792B (en) * 1954-09-20 1963-04-25 James Dave Auguste Harris Coin release device for remotely controllable self-tellers, mobile by means of an electric motor
US3172017A (en) * 1961-06-19 1965-03-02 Automatic Switch Co Frequency-responsive relay system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457011A (en) * 1945-06-02 1948-12-21 Westinghouse Electric Corp Electric circuit for electromagnets
US2590393A (en) * 1948-09-22 1952-03-25 Clark Controller Co Frequency relay
DE1147792B (en) * 1954-09-20 1963-04-25 James Dave Auguste Harris Coin release device for remotely controllable self-tellers, mobile by means of an electric motor
DE1108729B (en) * 1956-01-17 1961-06-15 Bbc Brown Boveri & Cie Circuit for the transmission of control commands, signals or messages from command posts located anywhere on a train to the locomotives that are also running anywhere on the train
US2998551A (en) * 1958-07-24 1961-08-29 Automatic Switch Co Frequency-responsive relay system
US3172017A (en) * 1961-06-19 1965-03-02 Automatic Switch Co Frequency-responsive relay system

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