DE655619C - Device for acknowledging the message of changes in position of switching devices in high-voltage systems - Google Patents

Description

Device for acknowledging the notification of position changes from Switching devices in high-voltage systems There are remote control systems known in which the position of the individual switching devices of a system is changed an alarm signal can be made noticeable, which is then brought to rest again it can be ensured that a switch assigned to the relevant switching device (output switch) is turned over by the switchman. By actuating the acknowledgment switch the switch attendant confirms that he has taken note of the change that has occurred Has. The positions of the switching devices in the system can in itself are indicated in a known way by signal lamps of different colors, which in Depending on the position of the associated switching devices or indirectly switched immediately «-earth. It is also already known, the output switch to couple with a position indicator or to train it as a position indicator, so that after a change in position of the switching device by flipping the associated Position pointer, the alarm signal is also switched off at the same time.

In a modern plant with a large number of switching devices the required control desks or control panels take on a large expansion, especially if command facilities are also available. The switchman can then change the position and any change in position of the individual switching devices of the system can be overlooked and recognized from its place, but must in order to receive the #Message to acknowledge this change of position, to constantly change his place, which, especially since in times of increased switching activity, can lead to undesirable delays. This disadvantage could be eliminated by making one for all display devices provides a common exit switch.

An institution has also become known where, if the switch attendant so wishes by establishing a special switching state, Change of position of several switching devices by special position change lamps are displayed, whereby the switchman by pressing any, normally used to select a switching device switch all Position change lamps can go out. However, this plant owns the disadvantage that the indicating the position of the switching devices Lamps - can be switched over as soon as a position report arrives and only nor the lighting of a position change lamp from the fact of the change% Knowledge gives. This is especially important if you have one of these Sound;,. to use in luminous circuit diagrams wünS @ fli because the switchman alone from the display of the position change lamps for the switching devices Security can recognize how far and in what way the reported changes in position are have had an effect on the high voltage system. Also the use of the the controls used switches to turn off the position change messages is unfavorable because it can happen that the switch attendant gives a command very quickly must give and ignore any feedback that may have arrived. As well as that Gives the command, he has then eliminated any possibility of recognizing feedback, and as a result, change of position notifications can easily be overlooked will.

According to the invention these disadvantages are avoided in that all Position indicators, the associated switch for a change of position have learned by pressing the general acknowledgment switch in the correct Attitude are brought, at the same time also the messages about the change of position be turned off. One will expediently also provide a possibility in order to be able to acknowledge position change messages individually.

Exemplary embodiments of the invention are shown in the figures. For the sake of simplicity, only the monitoring devices required for an adjustable organ are shown in FIG. Depending on the position of the in the. Adjustable organ, not shown in the figure, a polarized relay 4 is excited in one direction or the other via the lines 2, 3. The contact tongue 5 of the polarized relay 4 plays between two contacts 6 and 7, so it always assumes a position corresponding to the position of the associated organ. 8 is a relay which, by means of its armature 9, controls a changeover switch io and, via an articulated connection ii, a pawl 12 and a ratchet wheel 13, controls the signal cutoff switch 14. This can also be operated by means of a handle 15 which is designed so that it can simultaneously serve as a position pointer to indicate the position of the associated adjustable member. It can, for example, lie in a luminous circuit diagram and is then illuminated by a signal lamp 16, which is connected to a voltage source i8 by the changeover switch io either directly or via an interrupter 17. i9 is a push-button switch common to all adjustable organs. The contact tongue 5 and the signal cut-off switch 14 are switched in such a way that, if both are in the same position, the relay 8 is de-energized. If one of the two switches is switched over, the relay 8 is energized; if the other switch is also not opened.

The mode of operation is as follows: If the adjustable organ changes its position automatically or as a result of a command, the polarized relay .4 is energized, so that the contact tongue 5 is folded over to the contact 6. As a result, a circuit for the signal relay 8 is closed, from the positive pole of the voltage source 18 via the contact 6, the contact tongue 5, the winding of the relay 8, the contacts 2o and 2i of the switch 14, the line 24, which is usually closed Contacts of the push button switch i9 to the negative pole of the voltage source 18 runs. The relay 8 is energized, pulls its armature 9 and switches the changeover switch io, so that the signal lamp 16 is connected to voltage via the interrupter 17 and begins to flicker, as a sign that an adjustment of the associated organ has taken place. In addition, when the relay 8 is excited via the articulated connection ii, the pawl 1 2 is brought back so far that it comes into engagement with the ratchet wheel 13 of the signal cut-off switch i4. The alarm signal is intended to draw the operator's attention to the adjustment of the organ concerned and also to be forced to move the associated position indicator into the position corresponding to the new position by switching off the signal. He can either do this by hand by turning over the signal cutoff switch 14 by means of the handle 15 so that the contacts 22 and 23 are connected to one another. This interrupts the circuit of the relay 8, the armature 9 of the relay drops out and the flickering stops. But he can also do this by pressing the push button switch i9. When it is actuated, the circuit of the signal relay 8 is opened, the armature of which drops out and rotates the switch 14 by 90 ° into the position corresponding to the new position by means of the pawl 12 and the ratchet wheel 13 via the articulated connection ii. As a result, the circuit of the relay 8, as previously described, is interrupted. The push button switch i9 can therefore return to its rest position without the alarm signal being activated again. As soon as the adjustable member is adjusted again, the contact tongue 5 is folded over to the contact 7, and the processes described are repeated. The monitoring devices of the other adjustable organs are designed in the same way as those shown and are connected in the same way, namely the contacts 7 and 21 of all adjustable organs are connected to the line 2.1. connected. The excitation circuits of all signal relays 8 thus run via the push button switch i9. All signal cut-off switches 14 can thus be switched over by means of the push-button switch 19, namely when several adjustable organs change their position and consequently several alarm signals are actuated, the signal cut-off switches assigned to these organs are simultaneously moved into the positions corresponding to the new positions by push-button switch i9 knocked down.

Fig. 2 shows a modified embodiment. The signal cut-off switch, which is controlled by two electromagnets 26, 27, is designated here by 25. The one (; end of the winding 26 is connected to your contact 7 of the polarized relay q., The corresponding end of the winding 27 with the contact 6. The other two ends of the windings are connected to the line 28, which by means of the push button switch ic) can be connected to the negative pole of the voltage source 18. The signal shut-off switch 25 plays between the two contacts 29 and 30. It can also be provided with additional contacts (not shown), to which, for example, red and green signal lamps are connected to indicate the position of the associated adjustable organ. However, like the signal cut-off switch 14 in Fig. I, it can also be provided with a handle similar to your handle 15 and itself serve as a position indicator.

In the position shown, the signal relay 8 is de-energized. the The position of the signal cutoff switch 25 therefore corresponds to the position of the contact tongue 5 and thus the position of the associated organ. If this is adjusted now, comes the contact tongue 5 with the contact 7 in contact, whereby the circuit of the signal relay 8 is closed, from the positive pole of the voltage source 18 via the contact tongue 5, the contact 7, the contact 3o, the signal cutoff switch 25 and the winding of the relay 8 runs to the negative pole. The relay 8 pulls its armature 9 and puts the switch io to so that the signal lamp 16, the previously shone quietly, flickers. To turn off the flickering and at the same time the Switch position indicator according to the new position or if the signal cut-off switch is designed as a position pointer, this in the correct To change the position, the operator can briefly close the pushbutton switch i9. This creates a circuit for the electromagnet 26 from the positive Pole of the voltage source i8 via the contact tongue 5, the contact 7, the winding 26, the line 28 and via the contacts of the push button switch i9 to the negative Pole runs. The solenoid 26 is energized and sets the signal cutoff switch 25 um so that it comes into contact with your contact 29. But this creates the circuit of the signal relay 8 is interrupted and thus the alarm signal is switched off. The one in the Other switching devices or their monitoring devices not shown in the figure are connected in the same way, i.e. one end of the two windings 26 and 27 of all output switches 25 ″ -grounds connected to line 28. When the pushbutton switch i9 is operated, the circuit can be easily accessed can be seen, only those Ouittierungsschalter operated, their associated Organs misaligned and their alarm signals activated as a result.

The Fig.3 shows the invention in a system that is represented by a luminous circuit diagram is monitored. In this way, the respective switching status of the system can be recognized made that the symbols representing the individual line routes, etc. in the Illuminated circuit diagram are either illuminated or dark. The position of the to be monitored Switch is indicated by a line in the direction of the line route and is illuminated when the switch is closed and across the line and dark when the switch is open. For example, the handle shown in Fig 15 can be used for this. The adjustment of the symbol representing the switch could for example be done by the relays 45,46.

31, 3 2 and 33 are the symbols of several line routes between where the switch symbols 34 and 35 are analogous to your actual circuit diagram. The lamps illuminating the line sections are via lines 36 and 37 connected to a voltage source 38. In the line 37 are switches 39 and 4.o which, depending on the position of the associated switch, the individual Connect parts of the line 37 to each other, so that always the live corresponding symbols in the illuminated circuit diagram are illuminated are those of the dead line sections associated symbols on the other hand are dark in the luminous circuit diagram. In the exemplary embodiment, the monitoring devices are for two switches, to which the symbols 34 and 35 correspond, shown. Every switch two signal relays 41 and 42 are assigned. These are dependent on the The position of the relevant switch is controlled via lines 43 and 4..4 in such a way that that when the switch is open, the signal relay 41, when the switch is against it is closed, the signal relay 42 is energized. From each of these two signal relays 41 and 42 an auxiliary relay 45, 46 is controlled. The contacts they control 56 and 58 represent the output switch shown in Figs. I and 2 in a different representation ig is again a push-button switch common to all switches, through its Actuation all actuated alarm signals can be switched off at the same time as well as all position indicators, their associated switches a change of position have learned can be rectified.

The mode of operation of the arrangement is as follows: In the position shown, the switch corresponding to the switch symbol 34 is switched on, and the signal relay 42 is consequently energized. The switch 39 controlled by the signal relay 42 is consequently closed, so that the line section 32, like the switch symbol 34, is illuminated. The switch assigned to the switch symbol 135 is open, therefore the signal relay 41 is energized, the signal relay 42 is de-energized, the switch 4o is open and the switch symbol 35 and the line section 33 and all subsequent line sections, not shown, are dark. If the switch corresponding to the switch symbol 35 is now closed, the signal relay 42 responds. As a result, the switch 40 is closed, the line section 33 lights up. When the signal relay 42 is excited, the armatures 51 to 54 are also attracted. At the armature 53, the signal relay 42 opens the hold circuit of the signal relay 41, so that the latter can drop its armature. At the armature 52, the signal relay 42 closes a hold circuit for itself which runs via the armature 49 and its normally closed contact. At the armature 54 it closes a circuit for the relay 46, which at its armature 57 closes a holding circuit for itself, which runs via the line 59 and the normally closed contact of the push-button switch. The auxiliary relay 45 remains when the signal relay 41 drops out and the original excitation circuit for the auxiliary relay 45 at the armature So is interrupted via its hold circuit, which also runs via the line 59 and the push button switch ig. When it is excited, the relay 42 also switches the lamp of the switch symbol 35 at the armature 51 into a circuit which runs via the armature 51 and 56 and their working contacts, the busbar 6o and the interrupter 61 to the battery. The previously switched off signal lamp in the switch symbol 35 therefore flickers to draw the operator's attention to the fact that the associated switch has been adjusted. The alarm signal can be switched off by actuating the push-button switch ig by opening the hold circuit of the relay 45. The armature 56 of this relay drops out and switches off the signal lamp illuminating the switch symbol 35 from the flicker busbar 6o and places it on the line 37, so that the switch symbol 35 now receives a steady light.

If, for example, the switch corresponding to your switch symbol134 is opened automatically, the relay 41 controlled by it is energized. It opens the holding circuit of the relay 42, so that its armature drop and thus the parts of the line 37 which are dependent on the switch 39 are de-energized. The relay 41 also closes a hold circuit and also a circuit for the relay 45. The relay 46 remains energized when the relay 42 drops out. The lamp of the switch symbol 34 is therefore switched into a circuit which runs via the armature 47 and its normally open contact, the armature 58 and its normally open contact, the busbar 6o and the interrupter 61 to the battery. Their flickering can be switched off by pressing the push-button switch, which opens the holding circuit of the relay 46. The original excitation circuit is opened beforehand at armature 44 of relay 42.

The other switches or monitoring devices (not shown) associated relays 41, 42, 45 and 46 are operated in the same way as those shown connected, d. H. the holding circuits of the relays 45 and 46 are all over the Line 59 and out via the push button switch ig.

As can be seen from the preceding description, the individual line sections in the illuminated circuit diagram immediately upon arrival of the feedback switched accordingly. The switches 39 and 4o, etc. lying in the line 37 are shown depending on the relay 42. But you can also arrange it like this meet that the luminous circuit diagram is only switched when the push button switch ig is operated to switch off the alarm signal. It is then only necessary to let the switches 39 and .4o be controlled by the relay 45, namely so, because they are only closed when the relays 4.5 have dropped out.

In the embodiments shown in Figs. I and -2 can the alarm signals assigned to the individual switches can also be turned off individually by hand will. This arrangement can easily be made here by for each the switch a special push-button switch similar to the switch i9 in the on the line 59 connected lines for the holding circuits of the relays 45, 4.6 is switched.

Multiple «-earths in systems monitored by illuminated circuit diagrams are switched off at night or during times of low switching activity. It can be useful here, the Sclialtexsvinbole all a special circuit to be connected, which always remains switched on, so that the interference, even if the Illuminated circuit diagram is dark, can be indicated by the flickering of the switch button.

Instead of a single push-button switch for all switches to be monitored i9, the individual switches can be combined into groups, e.g. B. @ verken according to the individual subordinates to be monitored, and for each of these groups provide a special switch i9.

Claims (5)

PATR \ T_1- 2, PROVERBS: i. Device for acknowledging the message from Changes in the position of switching devices in high-voltage systems by a for all display devices getneinsatnetl confirmation switch (general confirmation switch), characterized in that all position indicators, their associated Switch to experience a change of position] by pressing the general acknowledgment switch be brought into the correct setting, and at the same time the messages about the changes in position are turned off. z. Device according to claim i, at which indicates the change in position of the switching device by a signal relay is, characterized in that the excitation circuit of the signal relay through the General acknowledgment slave interrupted and thereby by one of the signal relay When the energy store is charged, the activation switch is thrown over (Fig. i). 3. Establishment according to claim i, wherein the change in position of a switching device by a Signal relay is displayed, characterized in that the acknowledgment of a the signal relay indicated change of position of a switching device due to an interruption (or switching on) a closed circuit dependent on the general acknowledgment switch (or working circuit) of the signal relay takes place. Device according to claim 3, in which the acknowledgment is made by interrupting one of the general acknowledgment switch dependent holding circuit takes place, characterized in that instead of one Signal relay two relays (41, 42) are available, which additional auxiliary relays (45, .46) with holding circuits dependent on the general acknowledgment switch. 5. Device according to claim i, characterized in that the general acknowledgment switch not only the change in position of the switching devices, but also at the same time the changes in the operating status caused by this and displayed in the illuminated circuit diagram of the network must be acknowledged.