DE700562C - Telecommunication devices for remotely operated adjustable organs - Google Patents

Description

Telecommunication devices for remote-controlled. adjustable organs In that Main patent 673 4.09 is a telecommunication device for remote-controlled adjustable Organs proposed in which only a single auxiliary contact for each organ Identification of the message and used to stimulate the equipment in a substation will. In this device, all auxiliary contacts are connected in series, see above that a closed circuit is formed by them. This arrangement has the advantage that over .the closed circuit, the auxiliary switch contacts on their proper State as well as the lines necessary to form the closed-circuit circuits Wire break can be monitored.

Since the quiescent circuits are in the substations, these but are mostly unoccupied, so any disturbance of the closed-circuit circuits must be. Monitoring station be reported. According to the invention, this happens by being under the influence a time monitoring device in the event of a long period of powerlessness of the Rune current loop is a circuit that is independent of the normal stimulus circuit to start the voter is closed, and that during the circulation of the An alarm message is transmitted to the monitoring station. Here is the Invention does not apply to the use of a closed-circuit current circuit, in which the auxiliary contacts be bridged by resistances, but it can also be applied if a closed-circuit current (of the auxiliary contacts in connection with control relay is used.

There is also a brief one that occurs during the transmission of a message Interruption of the closed-circuit current loop to a falsification of the transmitted messages to lead can, there are also other means according to the invention provided in this case (the incoming messages in the monitoring station to suppress and a new round of '' voters for a new position report initiate.

The figures show exemplary embodiments of the arrangement according to FIG Invention shown.

Figs. I and 2 show two exemplary embodiments for the substations, 'where an embodiment is a series circuit: the auxiliary contacts in connection with resistors, the second embodiment a series connection of the auxiliary contacts in connection with control relay shows. Fig. 3 shows the circuit of the monitoring station, it can be used for the two embodiments of the substations according to Fig. i and: 2 can be used in the same way. The invention is also applicable if several substations are to be monitored from one monitoring station.

Fig. I shows a series connection of auxiliary switches ORi, 0K2, in which the switch-on and switch-off positions of the circuit breakers go through into the auxiliary switch chain switched on or off resistors are marked. Are the resistances according to the switched-off state of the circuit breaker switched on, so comes the pause relay PS, which is between the contact arms of the two contact banks RW, and RIIT2 is connected, in shunt to the individual resistors for response and causes the insertion of a break in the from the substation to the monitoring station given incremental pulse series.

If a circuit breaker changes its position, the auxiliary contacts indicate OK or OK. The quiescent current chain is briefly interrupted and the stimulus relay AR, which is normally held by its attracted contact arl, drops out, the contact arl being thrown over and the relay relay J to respond via the break contact of the voter bank RWs. When the selector reaches the first contact position, the stimulus relay AR is brought back to respond via the contact bank RIIJ4, the first contact of this contact bank, and the changeover contact arl again closes the holding circuit for the stimulus relay AR.

If for any reason the circuit of the auxiliary switch chain is interrupted for a long time, be it that an auxiliary switch has become faulty, be it that lines are interrupted, the stimulus relay AR will also drop out, but in this case because of the interruption of the In the chain circuit no responsive switching relay J can take place, the selector of this substation would no longer be able to start up. To prevent this, a thermal relay Tlt is provided which, if the stimulus relay drops out for a long time, is made to respond by closing the contact and initiates further processes. Instead of the thermal relay, another switching device that works with a response delay can be used.

The thermal relay speaks with every drop in the trigger relay AR on, but only in the event of a fault is it excited long enough to keep its contact th to be able to close. Closing the contact th has the consequence that a circuit for relay J from earth, via contact t1, contact spl, normally closed contact of the selector bank RW, contact iu2, winding of relay J to minus, comes about. In this circuit the relay J responds and initiates the progression of the selector, which continues is when the relay J via the earthed contacts i to 17 of the selector bank RW, finds tension again. As soon as the relay J closes its contact il comes a blocking relay SP to respond, which performs various functions.

At the contact spl, the relay Sp interrupts the effect necessary for starting the selector - of the thermal contact th. The locking relay closes a self-holding circuit via the contact spe and, on the other hand, opens the circuit of the thermal relay Th. The contacts spl and spe prevent the selector from starting again and again under the action of the thermal relay. SP remains attracted until the auxiliary switch chain «-leather closes and in this case an automatic feedback is given, through which AR is also tightened again. Via the contact sps, the blocking relay applies negative potential to contact 13 of the feedback selector RW, .. via a resistor.

Stimulated by relay J, the voter is now advanced in the familiar `` '' way through the interaction of relays J and JU. At the same time, incremental pulses are sent over the long-distance line to the monitoring station via contact i. If the voter arrives at contact 2 during his rotation, the relay PS is made to respond via the resistor -zog and the contacts 2 of the contact banks RW and RW. The resistance wg is dimensioned so that the current flowing through the pause relay PS is smaller than the current flowing through the relay PS when this relay is to respond to report the position of a switch. In this way, the pause relay finds difficult conditions to respond to the group notification position, and it can be concluded with certainty that if the pause relay responds under these difficult conditions even with low current, it will also respond under normal conditions, i.e. will respond when a switch position is reported. If there is only one main and one secondary station in the system, a compulsory pause is also inserted on one of the first contacts, which is only used to check that the pause relay PS is responding correctly.

If the voter reaches contacts 3 and 4, he finds them via these There is no potential for the pause relay to respond to both contacts, as these Contacts are released, again for a special reason. It should be determined on these contacts whether the pause relay also properly falls off again and not, for example, by jamming or the like: permanently holds in the tightened state. This check of the pause relay becomes noticeable in the Central station, and it will be mentioned later in the description of the conditions in the monitoring station can be shown how the correct and the Incorrect behavior of the break relay of the substations in the monitoring station . affects.

If the voter reaches contacts 5 and 6 and also the following contacts, the pause relay cannot respond via this, since it was assumed @ that through an error the monitoring chain of the circuit breaker auxiliary contacts is dead has become. Normally this would be via contacts 5 and 6 and the corresponding inferring contacts depending on the position of the circuit-breaker auxiliary contacts Pause or not.

If the voter comes to contact 13 while circulating, it will Break relay activated, as it was due to the interruption of the closed circuit , the blocking relay SP responded and seirien contact sp, has switched so that a circuit is made for the pause relay PS, which is connected from minus to the series resistor, contact sp3, contact 13 of the selector bank RW2, winding: of the pause relay PS, contact 13, which leads the voter bank RWl to earth.

If the voter reaches contact 14, in the assumed case, -the pause relay does not respond, @da by moving the contact sps the negative potential of contact 14 is switched off. The contact ars is however in this case closed because the relay AR due to the permanent interruption of the Quiescent current loop has dropped out. In the event that the closed-circuit current loop does not is disturbed, the contact ars has the following meaning: Will if properly Works of the apparatus of the substation messages are transmitted and will first of all be the Voters stimulated by the drop .des relay AR to a cycle, this is Incentive relay activated again - when the voter makes the first contact achieved. However, the contact ar3 is opened again, and if during the If the voter does not drop out again, the incentive relay remains the contact ars open and prevents the break relay on the 14th coritact appeals to. However, if another circuit breaker changes while a message is being transmitted its position, in order to prevent the suppression of this message, .by the interruption of the closed circuit caused the stimulus relay to drop out again, and it remains dropped throughout the rest of the electoral cycle. The contact ars remains closed.

There: by the second change of position temporarily the response circuit for the PS relay could be interrupted, and thereby in the worst case an erroneous signal would be reached when the AR relay does not drop during When the message is passed on, a blocking message is transmitted to the control center, which carries out the evaluation the first message prevented. This blocking message comes about in the following way: If the voter reaches contact 14., the contact comes via contact sp3,: ar3, the contacts 14, the selector banks RWL and RWz the pause relay to respond and causes a message to the monitoring station that during the run the voter has changed his position again. If the voter reaches his In the rest position again, the voter closes under the influence of the contact ari encouraged another round.

The effect of the pause relay for inserting a pause in the transmitted pulse train is as follows: When relay J responds, - via contact i. a circuit for the incremental solenoid DRb6 'of the selector is closed. At the same time, the delay relay V receives power and closes its contact v1. If the pause relay PS responds, the contact ps is also closed. As soon as the switching magnet DRW responds, the contact drw is closed and the relay JU also responds. The relay JU closes a self-holding circuit through the contacts iul and opens the circuit for the relay J. at the contact ixe. The relay J opens the circuit of the incremental magnet DRIi 'and the delay relay V at the contact i3. -hindered. Only when now (the delayed relay 1 "drops out and its contact v, opens, the relay JU can also drop out and close the circuit of the relay J at contact ix = again. JC% and the incremental magnet DRU 'without using the self-holding circuit via the contacts ps, v ,, fit, for the relay JU.

In Ab b. 2 shows a further exemplary embodiment of the circuit of the substation. The only difference compared to Fig. I is that there are no resistors in the chain formed by the auxiliary contacts, the on / off switching of which causes the glass break relay to respond. K_ is dependent. When the circuit breaker is switched on, the quiescent current chain is closed directly via the auxiliary contacts Oh " OK, the control relays are switched off Control relay K ,, K2, closed. In this case, the response of the pause relay depends on whether the control relays have picked up or dropped out because, depending on the state of these relays sin1, contacts k, 2, k22 are open or closed.

The rest of the effect of the circuit according to Fig. 2 corresponds perfectly according to Fig.i, so that further explanations for this figure are not required are.

In Fig. 3 the monitoring station belonging to the substations shown in Fig. I and 2 is shown. In the line L1, L2 coming from the substations, a receiving relay ER is connected, which receives the pulses sent out by the substations. Via the contact he received impetus to the relay P and JR are passed. The relay JR is used to switch the selector by closing the circuit for the switching magnet DRTV via the contact ir. That. Relay P is used for pause reception. It is a delayed relay that does not drop out during the short pauses normally between two pulses, but only drops out when, depending on the pause relays PS of the substations, a longer pause is inserted into the transmitted pulse train. Relay V is a delay relay that normally remains attracted during a voter rotation and only drops out if no incremental pulses have been received for a longer period of time. The relay F is an error relay that responds to certain errors in the transmission. The relays GRI, GRII are receiving relays for the group selection pulses. The relays E ,, E2 are preparation relays for the later switching of the individual control relays according to the received switch position reports, and the relay SP is used to receive the report of a malfunction in the closed-circuit current loop of a substation. The relays FK and ST are, in turn, fault relays that respond in the event of certain faults. The relays K and AL are switched on by the contacts of the receiving relays after the voter synchronism has been established and are used to signal or #. Control alarm lights.

When receiving via the relay ER pulses from the substations forth, the following happens: The first arriving pulse caused by closure of the contact it that the relay P responsive, as a consequence, the relay JR talks about the closed Arbeitskontaktp2 and st the closed-closed contact, at. The relay P puts its contact p to and thus switches off the selector arm of the contact bank RW from the positive potential connected to earth. The rotary magnet DRW is made to respond via the contact ir, which advances the selector by one step. Since it is assumed that a message is to be received from station II, no pause criterion can be applied to the first contact, since station II is only identified by a pause on contact 2.

The selector of the monitoring station is switched to contact position 2 by the second incremental pulse received. In the sending substation since the break relay PS has responded to this contact and the pulsing had prevented through the line for some time, the relay ER long period than usual urerregt, the contact it stays open a long time, and there is the pause relay P to fall off. The contact p, is brought back to its rest position, and it is thus closed a circuit for the relay GRII, the contact p ,, the contact 2 of the contact bank RW ,, winding of the relay GR II, winding of the relay FK to the ground The negative pole of the battery leads. The relay GR II closes a self-holding circuit via the contact gr IIz; which leads via the closed contact v1. At the same time, a test circuit for the fault relay F is closed by the contact gyIIi. However, since the relay GR I does not respond to the first contact when the station 1I reports properly, this test circuit at contact gr I1 remains open and the fault relay cannot respond either be, a circuit would be created for the error relay F, which suppresses an evaluation of the incoming messages in a manner to be described later. At the contact gr IIg, the group relay prepares a circuit for influencing the control relays in group II. Kam none of the group relays in the monitoring station to respond, a message cannot be evaluated because none of the control relay groups is prepared for a later change in position.

Exceeds - the selector of the monitoring station contacts 3 and q., there may be no pauses in the progression, since the corresponding Contacts of the substations are kept free. Step in these positions anyway If there is a pause in the switching, this is a sign that the pause relay the sending substation responded incorrectly, and in this case it will in turn, by responding to the error relay F, an evaluation of the following messages suppressed.

If the selector reaches the contacts 5, 6 and the corresponding following contacts, the messages about the switching on or off of the circuit breakers of the substation considered in this case are normally reported in these positions. A message for a switch that is switched on is identified by the absence of a pause, a message for a switch being switched off by the occurrence of a pause. If a pause occurs on one of the contacts, the corresponding receiving relays Ei, E2 etc. are made to respond, and these relays close self-holding circuits on contacts ei " e21 and prepare circuits on contacts eis, egg etc. for any necessary adjustments For the messages about the switch positions to arrive, however, it is a prerequisite that the closed circuit for the auxiliary contacts of the substation in question is OK. If this is not the case, a message about the switch positions cannot take place As already explained in the description of the operation of the substations, the failure of the closed circuits of the auxiliary switches of a substation is reported by inserting a pause in the transmission of the incremental pulses on the 13th contact of the selector During this pause comes the surveillance ungsstation the relay SP to respond, which closes a self-holding circuit via the contact spi. Since it was assumed that the substation II wants to transmit a message, a circuit for the response of the alarm relay AL II is prepared via the contact sps.

If the voter gets to the 14th contact, nothing happens there if the transfer proceeds properly. If, however, the alarm relay AR in the substation has dropped out again during the cycle, then in position 1q. the voter the monitoring station to enter a pause that brings the fault relay F to respond ..- - of voters in the rest position, the relay P falls there from first, as no further pulses arrive through the pipeline and the relay ER his contact, he opened holds. With contact p1 in the rest position, a circuit is prepared, which is connected from earth via contact p1, the contact arm of the voter bench RWi in position O, contact f2, contact v2 in the assumed case the contact gr 11,9 and the contacts eis, ezs or sps depending on the selection leads to the negative pole of the battery. In this circuit, the contact v2 is initially still open, since this relay drops out later than the relay P. When the relay h drops out, the circuit is finally closed, provided that the fault relay F has not responded during the rotation of the selector. If the fault relay F has responded, the prepared circuit remains open at contact f2 even after the delay relay h has dropped out. Since the self-holding circuits of the relays GR and E or SP are opened by the dropping of the relay Ir and these relays drop earlier than the fault relay F, whose self-holding circuit is also opened by opening the contact v1, the prepared circuit is when the fault relay F closes the normally closed contact f2 after it has dropped out, already opened again by opening the contact gr IIs, so that when the fault relay F responds, no circuit at all for the setting of the control relay can come about.

If, however, everything went properly during the transmission of the message and the error relay did not respond, the prepared circuit for adjusting the control relay is finally closed after the relay b 'has dropped out. It is assumed for this that the switch corresponding to the control relay KII2 has changed its position, so that when the relay E responds, the contact e23 assumes a position opposite to the position shown. When the prepared circuit just mentioned comes about, the relay K IL in this circuit is activated. ES closes at its contact k IL, a self-holding circuit for its second winding, so that this relay remains energized even if the response circuit for the first winding has been interrupted again by the relays GR II and I 'dropping out. If a change of position occurs in such a way that a previously attracted control relay K is to be caused to drop out, the holding winding of the control relay is short-circuited by the corresponding contact of the E relay. The alarm relays AL are switched in the same way as the control relays. If one of the alarm relays responds, an alarm device is actuated via one contact of this relay, and the indicator lamps of the station for which the alarm message applies are expediently extinguished via another contact so that no false alarms can be seen.

There is also a control in the circuit to ensure that the group and message reception trips are properly addressed when a break occurs. This control is carried out by the relay FK in connection with the relay St. If, in fact, a pause occurs in one of the steps, then not only receives the associated receiving relay via the contact arm of the contact bank RW, through the release of the relay P via the contact p, current, but the relay St is also excited via the contact p. On the one hand, this relay opens the progressive circuit of the selector via its contact st2 and, on the other hand, prepares a self-holding circuit for a second winding via the contact st. The creation of this self-holding circuit depends on whether the relay FK was triggered or not and the contact fk was opened or remained closed. If one of the receiving relays responds properly when a pause occurs, the relay F! (Is also energized, and a permanent response of the relay St is prevented at contact fk. If, however, none of the relays responds when a pause occurs, the relay also responds FIS is not on, and the relay St prevents the selector from being switched on again, thus ensuring that a message is actually received when a break occurs.

If the remote control system only consists of two stations, one is essential Simplification of the circuit of the monitoring station possible in that the control relay K drop out. For this, the receiving relays E are used directly to control the Control signals used. For this, however, it is necessary that the relay E in the idle state of the selector constantly one of the position of the corresponding auxiliary contacts take the appropriate position with the substation. By using a second Winding, which is connected like the second winding of the control relay, leaves achieve this easily.

Claims (7)

PATENT CLAIMS: i. Telecommunication device for remote controlled adjustable Organs (oil switch or the like), their position using selection devices is reported to the monitoring station, with only a single auxiliary contact for each Organ to identify the message and to stimulate the equipment in a substation is needed and the auxiliary contacts of all organs are connected in # series, so that a closed circuit is closed by them, according to patent 673 4091 thereby characterized in that under the influence of a time monitoring device (Th) at long-term currentlessness of the quiescent circuit is one of the normal stimulus circuit independent circuit (th, sp,) for starting the selector (RW) closed and that an alarm message (at voter step 13) is transmitted to the monitoring station. 2. Device according to claim i, characterized characterized that when starting the selector in the substation as a function A blocking relay (SP) comes from the time monitoring device (Th) to respond, , which allows the selector (RW) to be rotated several times by switching off the to start the selector's closed circuit prevented. 3. Device according to claim i and 2, characterized in that the locking relay (SP) prepares a circuit which leads via certain contacts of the selector of the substation (RW) and when it closes a message indicator (on @@ 'ählerscliritt 13) for reporting the fault that has occurred in the substation is transmitted to the monitoring station. 4 .. Device according to claim i to 3, characterized in that in the monitoring station alarm relays (AL) respond when the fault report of a station arrives, which cause all the signal lamps belonging to this station to go out and switch on an alarm device. 5. Device according to claim i to 4, characterized characterized in that the restoration of the closed circuit in the substation causes the selector to cycle again, during which the blocking relay (SP) is invalidated and a renewed transfer of the position of all adjustable organs of this station takes place. 6. Device according to claim i, characterized in that an occurring during the transmission of messages, possibly only brief interruption of the closed-circuit current loop of the substation the transmission of a message identifier (in step 14 by arg) to the monitoring station which causes the suppression of incoming messages. 7. Device according to claim i and 6, characterized in that the transmission the message identifier that suppresses incoming messages via a contact (arg) of the stimulus relay (AR), if this occurs at the end of the cycle of the selector. of the substation is in the dropped state, and that in the. Following the first transmission of the messages, a repetition of the Transmission takes place. B. Device according to claim i, characterized in that that the incentive relay (AR) of the substation has a contact (arl) in which. In one position, a self-holding circuit is closed via the closed circuit and meanwhile another position with otherwise undisturbed closed-circuit current circuit a circuit for the incentive of the voter (RW) in the substation comes about.