SU1421589A1 - Apparatus for controlling and monitoring switch point electric actuator - Google Patents

Abstract

The invention relates to electrical interlocking devices at railway stations. The purpose of the invention. - Improved reliability. The invention makes it possible to increase the reliability of an electrical interlocking device by introducing a polarized starting relay 15 into a known repeater device, one contact of which 15 is connected in series between the plus of the stationary U. rechargeable battery and the ffl terminals of the positive and negative control buttons to form a one-time package The order to transfer the arrow and the other 15 to the control circuit for switching the determinants of position from the arrow; two threshold relays 11 and 27, each of which contains a high resistance and a low resistance. windings, as well as normally open to ontact, connected in parallel with the high impedance winding. The threshold relay at a certain current opens its contact after the discharge of the capacitor of the relaxation generator and, therefore, it is used as a determinant in the circuit: at the centralization post it is connected to the switched contact of the repeater of the polarized starting relay, and to the control contacts of the breaker: in the positive position of the arrow. 1 il. J SSR S cnf g 1, 1 J I 7 1 S GhE (raioi cl 00

Description

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The invention relates to electrical centering devices at railway stations. I The purpose of the invention is reliability.

i. The drawing shows a schematic diagram of the device, i The device contains, at station 1 3 of the centralizing station, a station battery 2, a working battery 3 designed to power switch actuator 4 neutral starting relay 5 with clock 5 to 5 and field jkoboe relay 6 with pins 6, i plus 7 and minus 8 control buttons, receiver of I position control signals, performed on relay: le 9 with pin 9, connected to: capacitor .10, threshold relay 11 1C contact L / and control source M L2 supply via resistor 13,; decoder 14 pulses connected to station battery 2 via pin 9, through pin 14 of the decoder of the repeater of the starting polarized 1.5 relay with contacts connected positive 16 and minus 17 control relays, two-wire line 18 which includes through threshold limiters 19, reversing relay 20 with contact 20 and 20, pins 21-26 on the toggle switch, threshold relay 27 at positive, and capacitor 28 at the minus arrow position, are connected to rectifier 29-32 via contacts 20 and 20 and mover 33 with excitation windings 34.

The device works as follows.

In the initial positive position, the arrow is monitored at the center of the center, as the relaxation generator is functioning, performed on the following elements: resistor 13, relay 9, capacitor 10, threshold relay 27, from which the receiver periodically triggers relay 9. After turning on the power from source 12 through the resistor 13 the capacitor 10 is charged, when the voltage across it reaches the threshold for opening the relay 27, the latter closes the contact 27, the capacitor is discharged to the receiver, as it is discharged the current through the relay 27 decreases and it de-energizes p zmyka

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contact 27., then the process periodically repeats.

The current pulses received by the receiver are decoded by a downshifter 14, from which the control relay 16 receives power, fixing the positive position of the arrow. To switch the arrow to the minus position, the button 8 is pressed, the polarized start relay 6 is first triggered and switches contacts 6-6, and then the neutral start relay 5. The linear wires 18 include a working battery of which the reversing relay 20 is actuated in the drive and and 20 turns on the electric motor 33. After the switch of the arrow, the working motor circuit is turned off by the contact 21 of the autotranslator, lower the cory of the relay 5 and the reversing relay 20, which include their control contacts with their rear contacts nb. In the minus position the arrow also

the relaxation generator controls the elements of this generator — a threshold relay 11 with a contact 11 located at the electrical i centralization post, and on the switch a capacitor 28. Due to the pulse operation of the receiver 9, which is checked by the decoder 14, the negative control relay 17 is excited, fixing the minus the position of the arrow. When moving the arrow from the minus position to the plus one, the button 7 is pressed, the device operates in the same way.

Claims (1)

The switch of the arrow to the desired position and the reversal of the electric motor is performed by the polar quality of the operating current, and the monitoring is carried out by the obligatory fulfillment of the conditions: on the arrow by the contacts of the autoswitch the corresponding element of the relaxation generator is turned on — the threshold relay determining the positive position position} at the position of centralization of the starting relay contacts, a well-defined element of the relaxation generator must also be switched on: in the positive position - capacitor, with a minus - threshold relay; the function of the generator is checked by the decoder. Invention Formula A device for controlling and controlling a switch actuator containing polarized and neutral starting relays, one of the windings of the first of which is bridged by series-connected front contacts of poisoning buttons, in parallel with which their rear contacts are connected, through which the winding of polarized starting relay is connected to the first power source Acceptance of the position control signals of the arrow, one output of which is connected with the electric drive of the arrow through the first and second series-connected The control contacts of the auto-switch, another output are connected to another power source through a series-connected switching contact of a polarized start relay and a delay element, distinguishing it by the fact that, in order to increase reliability, it is equipped with a repeater of a polarized starting relay, through a breaker and the closing contacts of which the first source of the power supply is connected to the corresponding of the aforementioned rear contacts of the control buttons, the threshold relays with a series-connected high-resistance low-resistance windings, the first of which are grounded by their own front contacts, the high-resistance winding of one of the threshold relays connected to the switching contact of the polarized starting relay connected in parallel to the opening contact, low-resistance to the other terminal of the receiver winding. and the second threshold relay is connected between the first and second control contacts of the autoswitch.