DE1000851B - Signal circuit, especially for railway security systems - Google Patents
Signal circuit, especially for railway security systemsInfo
- Publication number
- DE1000851B DE1000851B DE1953P0009569 DEP0009569A DE1000851B DE 1000851 B DE1000851 B DE 1000851B DE 1953P0009569 DE1953P0009569 DE 1953P0009569 DE P0009569 A DEP0009569 A DE P0009569A DE 1000851 B DE1000851 B DE 1000851B
- Authority
- DE
- Germany
- Prior art keywords
- relay
- capacitor
- signal circuit
- resistor
- circuit according
- 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.)
- Pending
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
- H01H47/18—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 introducing delay in the operation of the relay
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Description
DEUTSCHESGERMAN
In Signalschaltungen, insbesondere für Eisenbahnsicherungsanlagen, werden häufig Kondensatoren verwendet, die beispielsweise dazu dienen, den Abfall oder Anzug eines Relais zu verzögern. Hierbei kann der Fall eintreten, daß ein solcher Kondensator im Betrieb schadhaft wird bzw. durchschlägt, ohne daß sich dieser Fehler zunächst im Schaltungsablauf störend bemerkbar macht, jedoch kann für die Aufrechterhaltung eines bestimmten Signalzustandes durch den betreffenden Kondensator die vorgeschriebene Dauer nicht mehr eingehalten werden, was erhebliche Gefahren für den Verkehr zur Folge haben kann.In signal circuits, especially for railway safety systems, Capacitors are often used, for example, to reduce the waste or to delay pick-up of a relay. It can happen that such a capacitor in the Operation becomes defective or breaks through without this error initially appearing in the circuit sequence annoyingly noticeable, but can be used to maintain a certain signal state the prescribed duration can no longer be observed by the capacitor in question, which is considerable Can pose a risk to traffic.
Zur Vermeidung dieser Nachteile sieht die Erfindung vor, den Kondensator zwischen den Benutzungszeiten zu prüfen, Es ist bekannt, die Spannung eines Kondensators, dessen Ladung ein Relais betätigen soll, bei der Aufladung zu messen. Damit wird jedoch nur sein Wirkwiderstand (seine Isolation) geprüft, nicht seine Kapazität. Demgegenüber wird gemäß der Erfindung eine laufende Überprüfung des Kondensators in der Weise vorgenommen, daß derselbe in an sich bekannter Weise im Zuge des Schaltungsablaufs, bevor er seinem Bestimmungszweck entsprechend wirksam wird, zunächst in geladenem Zustand auf die Parallelschaltung eines Relais mit einem Widerstand geschaltet wird, wobei Relais und Widerstand im Verhältnis zueinander und zum Kondensator so ausgelegt sind, daß das Relais nur bei einwandfreiem Zustand des Kondensators, d.h. sofern dieser seine volle Nennkapazität besitzt, soeben anzuziehen vermag, anderenfalls jedoch nicht zum Anzug kommt und dadurch der weitere Schaltungsablauf unterbunden bzw. eine Störmeldung ausgelöst wird.To avoid these disadvantages, the invention provides for the capacitor between the periods of use To check, it is known to operate the voltage of a capacitor whose charge a relay is supposed to measure when charging. However, this only checks its effective resistance (its insulation), not its capacity. In contrast, according to the invention, there is an ongoing check of the capacitor made in such a way that the same in a known manner in the course of the circuit sequence before its intended purpose becomes effective, initially in the charged state on the parallel connection of a relay with a resistor is switched, the relay and resistor in relation to each other and to the capacitor are designed in such a way that the relay can only be operated if the capacitor is in perfect condition, i.e. if if this has its full nominal capacity, it is just able to attract, but otherwise not to attract comes and thereby the further switching sequence is prevented or a fault message is triggered will.
Es ist zwar bekannt, einen Kondensator als Stromquelle an ein Relais mit parallel geschaltetem Widerstand zu legen, jedoch wird dabei bezweckt, die Anzugszeit des Relais mit der längeren oder kürzeren Einwirkungszeit eines äußeren Vorganges in Vergleich zu setzen. Dabei wird vorausgesetzt, daß die Eigenschaften des Kondensators unverändert seien. Der Zweck der Erfindung ist es aber, gerade diese Eigenschaften zu prüfen durch probeweises Belasten mit genau eingestellten Verbrauchern. Gemäß der Erfindung wird als Probelast eine der Nutzlast ähnliche, nämlich im wesentlichen ein Relais gewählt.It is known to use a capacitor as a power source to a relay with a resistor connected in parallel to put, however, the purpose is to keep the response time of the relay with the longer or shorter To put the exposure time of an external process in comparison. It is assumed that the Properties of the capacitor are unchanged. The purpose of the invention, however, is precisely this Properties to be tested by trial loading with precisely set consumers. According to the In accordance with the invention, a test load similar to the payload, namely essentially a relay, is selected as the test load.
Das Relais, das in dieser Weise der laufenden Überprüfung des Kondensators dient, kann entweder ein besonders für diesen Zweck vorgesehenes Relais oder ein an sich in der Schaltung wirksames Relais sein, beispielsweise das Relais, dessen Abfall durch den zu überprüfenden Kondensator verzögert werden soll. The relay, which is used in this way to continuously check the capacitor, can either a relay specially provided for this purpose or a relay that is effective in the circuit be, for example, the relay whose drop is to be delayed by the capacitor to be checked.
Signalschaltung, insbesondere
für EisenbahnsicherungsanlagenSignal circuit, in particular
for railway safety systems
Anmelder:Applicant:
Pintsch Bamag Aktiengesellschaft,
Berlin NW 87, Reuchlinstr. 10-17Pintsch Bamag Aktiengesellschaft,
Berlin NW 87, Reuchlinstr. 10-17
Gerhard Schindler, Frankfurt/M.,
ist als Erfinder genannt wordenGerhard Schindler, Frankfurt / M.,
has been named as the inventor
Die Erfindung ist in der Zeichnung beispielsweise näher veranschaulicht, die den Teil einer Signalschaltung wiedergibt, soweit diese für die Erfindung von Bedeutung ist.The invention is illustrated in more detail in the drawing, for example, which is part of a signal circuit reproduces insofar as this is important for the invention.
Im Ruhezustand der Schaltung liegt der zu überprüfende Kondensator C an der Gleichspannung +/·—. Nachdem die Schaltungseinrichtung zu arbeiten begonnen hat, wird in einem gegebenen Augenblick ein nicht dargestelltes Relais 1 wirksam, dessen Wechselkontakt 11 beim Umschalten den Kondensator C von der Spannung ab- und an das Relais 2 anschaltet. Zum Relais 2 liegt ein Widerstand Wl über einen zunächst geschlossenen Kontakt 21 des Relais 2 parallel. Der an der Gleichspannung geladene Kondensator wird sich normalerweise über das Relais und den Widerstand entladen und hierbei das Relais zum Anzug bringen. Dabei sind die Widerstands- und Relaisdaten im Verhältnis zur Kapazität des Kondensators und zur Spannung der Stromquelle so gewählt, daß der durch das Relais normalerweise fließende Zweigstrom das Relais mit Sicherheit zum Anzug bringt. Das ansprechende Relais 2 kann dann z. B. mit einem Kontakt 21 den Widerstand W1 abschalten und mit seinem Kontakt 22 den Kondensator C wieder an Spannung legen, so daß bei späterer Unterbrechung des Kontaktes 31 eines nicht dargestellten Relais 3 die volle Ladung des Kondensators zum verzögerten Abfall des Relais 2 zur Verfügung steht, das im übrigen noch weitere in die Schaltung eingreifende Kontakte besitzt.When the circuit is idle, the capacitor C to be checked is connected to the DC voltage + / · -. After the switching device has started to work, a relay 1 (not shown) becomes effective at a given moment, the changeover contact 11 of which switches the capacitor C off and on to the relay 2 when the voltage is switched over. A resistor Wl is connected to the relay 2 via an initially closed contact 21 of the relay 2. The capacitor charged to the DC voltage will normally discharge itself through the relay and the resistor, thereby causing the relay to pick up. The resistance and relay data in relation to the capacitance of the capacitor and the voltage of the power source are selected in such a way that the branch current normally flowing through the relay is sure to bring the relay to the pick-up point. The responsive relay 2 can then, for. B. switch off the resistor W 1 with a contact 21 and connect the capacitor C to voltage again with its contact 22, so that if the contact 31 of a relay 3, not shown, is later interrupted, the full charge of the capacitor for the delayed fall of the relay 2 is available stands, which also has additional contacts that intervene in the circuit.
Claims (4)
Deutsche Patentschriften Nr. 719 744, 765 149.Considered publications:
German Patent Nos. 719 744, 765 149.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1953P0009569 DE1000851B (en) | 1953-04-13 | 1953-04-13 | Signal circuit, especially for railway security systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1953P0009569 DE1000851B (en) | 1953-04-13 | 1953-04-13 | Signal circuit, especially for railway security systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1000851B true DE1000851B (en) | 1957-01-17 |
Family
ID=588518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1953P0009569 Pending DE1000851B (en) | 1953-04-13 | 1953-04-13 | Signal circuit, especially for railway security systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1000851B (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE719744C (en) * | 1938-08-02 | 1942-04-16 | Julius Pintsch Kom Ges | Circuit arrangement in which a relay is switched on when a current surge is received by the discharge current of a capacitor and only drops out again when a second current surge is received |
DE765149C (en) * | 1939-08-22 | 1954-02-08 | Julius Pintsch K G | Relay arrangement with delay capacitor |
-
1953
- 1953-04-13 DE DE1953P0009569 patent/DE1000851B/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE719744C (en) * | 1938-08-02 | 1942-04-16 | Julius Pintsch Kom Ges | Circuit arrangement in which a relay is switched on when a current surge is received by the discharge current of a capacitor and only drops out again when a second current surge is received |
DE765149C (en) * | 1939-08-22 | 1954-02-08 | Julius Pintsch K G | Relay arrangement with delay capacitor |
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