SU27743A1 - The method of selective control with the Central power station - Google Patents

Description

The present invention relates to selective control from a central power station by turning on and off electric power receivers, the switches of which respond to the same frequency, for which purpose in this case change the working frequency of the current generated by alternators and different time intervals depending on the groups of receivers to be switched on or off - To implement the above method, it is proposed to use a selective switch of a special design.

The drawing shows a diagram of the selective switch.

The method of selective control from the central electric station consists in that from the central electric station, the same electric power receivers connected to the electric power station supplying them are switched on and off by the same wires that supply consumers with power. one and the same frequency of the current, different from the working frequency, and the choice of that OR other receiver to be switched on or off, is determined by the duration of the current from frequency. The current is not operating frequency and the corresponding duration is obtained from the alternators supplying the network itself.

To implement the above method, the selective switch shown in the drawing is applied.

According to the diagram shown in the drawing, the selective switch consists of two systems of gears 5 and 70, carrying levers b and //, respectively, sliding along the contact plates 7 8, 7 and 25. The system of gears 5 fastened to the lever b can be driven Rotation in one direction by a resonant mechanical vibrator, tuned to the changed frequency and, in the opposite direction by the vibrator 5, tuned to the normal operating frequency of the alternators and connected between the network and the baffle contact plates 7, 7. The gear is the same 10, scratched captive with a lever //, closing the current collector circuit, may be driven. Rotation in one direction by the vibrator 28, tuned to the changed frequency, and, in the opposite direction, by the vibrator 4, tuned to the normal operating frequency, wherein both vibrators are connected between the network and the working contact plate 8, along which the lever 6 slides.

The working contact plates of the switches of various current collectors are shifted to certain angles so that the operation of one of the switches does not interfere with the operation of current collectors controlled by other switches.

By a corresponding change in the frequency of the current generated by alternators at the central station, the mechanical vibrator 2 is actuated until lever 6 takes the position needed to turn on this current collector (to control operations at the central station, an instrument similar to the other selective switches is installed but equipped with a scale of degrees). At this time, the levers of switches of other current collectors such turn on a certain angle, but stop not at the working contacts 8, but on the firing 7.

When returning to the normal frequency, the lever b of the included current collector stops at the working contact. 6, the circuit closes the circuit 22, 4, 25, 8, 20, in which the vibrator # is set to the normal frequency 50, as a result of which in system 10 the lever 7 / will turn from pin 12 to pin plate 25 and turn on current receivers 16, at which point the current circuit will be 7.26, //, 25, 30, 16.24, 18.

Levers b of other switches meanwhile returning 1) to its original position I as through the contact plates 7 or 7 closes the current circuit 21, 3, 7 (7), 6, 20, in which the vibrator 3 is connected, adjusted to the normal frequency and turning gear with lever 6 in the opposite direction.

The lever and, when reaching the stop contact 3, will also close the current circuit 30, 25, 13, 15, 29, why the resistance / 5 will start to heat up, which will activate the contact device 14 with a time delay; as a result, one more parallel operating current path (between 17 and 30) will be created. Thus, if the lever // returns to its original position, the working circuit of the receiver 16 will not be interrupted for some time, determined by the action of the contact device 14,

The return of the lever // to the initial position can occur under the action of the vibrator 28, tuned to the changed frequency, when other receivers are turned on, if this frequency change continues for a time sufficient for the lever // to come off the contact plate 25.

The subject matter of the invention

Claims (5)

1. A method of selectively controlling, from a central electrical station, switching on and off electric power receivers, whose switches respond to the same frequency, from the fact that for this purpose, the alternating frequency of the station alternators is changed for different periods of time, depending on what from groups of current receivers must be on or off. 2. To implement the method of claim 1, use a selective switch, differently using two transmission systems 5, 10, of which the system 5 attached to the lever b can be caused to rotate in one direction with a resonant mechanical vibrator 2 tuned to the modified frequency, and the opposite direction, the vibrator 3, tuned to the normal frequency of the alternators and connected between the network and the baffle contact plates 7, 7 along which the lever can slide, and attached to the lever // the closing circuit of the current collector of the system The ma 10 can be rotated in one direction, by a vibrator 28 tuned to a changed frequency and, in the opposite direction, a vibrator 4 tuned to a normal frequency, connected between the network and the working contact plate 8 along which the lever 6 slides. 3. With the switch on and 2 application, in order to exclude the undesirable switching off of this current receiver during manipulations associated with switching on or off the remaining receivers, the device for breaking the circuit of the vibrator 2 after switching on this circuit. 4. With the switch according to claim 2-3, use of a baffle device, which leads to the initial aololen contact lever 6 in case it stops on the baffle contact plates 7, 7. 5. When using the switch according to claim 2-4, to maintain the circuit of the current circuit in the position for some time after turning it off, adjusting with a time delay, coming into operation when the receiver is turned off.