SU1099331A1 - Monitoring-distributing multibit relay device - Google Patents

Abstract

Dispatching control multibit relay device comprising a double-wound control relay according to the number of bits, each of which has a high-impedance launcher and low impedance retaining windings interlock relay according to the number of control relay channel switches according to the number of control relay terminals for connecting a supply source, wherein the actuating and the holding winding of the discharge control relay and the corresponding channel switch are connected in series, characterized in that, in order to increase the reliability of the device In particular, double-wound memory relays with on and off windings are used as interlock relays. One output of the starting winding of the control relay of each discharge is connected to one output terminal of the discharge relay for connecting the power supply, the other connection for which through successively connected first disconnecting contacts of the control relays of all bits are connected to one terminals of the switching windings of all blocking relays, the other output of you The connecting winding of each blocking relay is connected via its own closing contact to one unit for connecting sources (power supply, one terminals of the turning windings of all blocking relays are combined and connected to another terminal for connecting the power source, another terminal of the blocking windings of each bit, a also the point of connection of the starting and holding windings of the control relay of each discharge through the sequence with the joint of the closing relay of the control relay of this section The view and the second break contacts of the control relays of all previous bits are connected to the control input of the device.

Description

f109 The invention relates to pulse distribution devices and may find application in systems of control devices, communication devices of various branches of engineering. A control and distribution relay is known, containing a series of control relays that control the operation of the control circuit. Each relay has contacts through which the relay windings are mutually controlled, which allows current pulses to be sequentially distributed across the output channels and automatically to exclude damaged channels lj from operation. The disadvantages of such a relay are limited operational capabilities, which consist in disrupting the sequence of distribution of impulses of current through channels after turning off the power source, which, when turning on the power again, does not continue the cycle of distribution of current pulses, but also registers it. -distribution relay containing a control relay that monitors the health of the control circuit and a locking relay that controls the control relay. Each relay has contacts through which the relay windings are mutually controlled, which allows the current pulses to be sequentially distributed across the output channels and automatically exclude the damaged 2J channels from operation. The disadvantage of such a relay lies in the disruption of the sequence of current pulses through the channels after turning off the power source, which, when the power is turned on again, does not continue the pulse distribution cycle, but resumes it and ultimately reduces the reliability of the device. devices. The goal is achieved by c. control and distribution multi-bit relay device containing two-winding control relays by the number of bits, each of which has high-resistance start and low-resistance holding windings, blocking relays by the number of control relays, circuit breakers 31 by the number of control relays, terminals for connecting the power source, and the starting and holding windings of the control relay of each bit and the corresponding channel switch are connected in series, two-optical modules are used as blocking relays empty relays with a memory that turns the winding on and off, one of the terminals of the starting winding of the control relay of each discharge is connected to one of the terminals for connecting the power supply through the opening contact of the interlocking relay of this discharge, the other terminal for connecting through the first disconnected the control relay contacts of all bits, one from each relay, are connected to one of the terminals of the switching windings of all interlocking relays, the other terminal of the switching windings of each block The kirovochny relay through its own closing contact is connected to one output for connecting a power source, one of the terminals of the switching windings of all interlocking relays are combined and connected to another terminal for connecting the power supply, another output of the closing winding of the interlocking relay of each discharge, and the connection point of the starting and holding the control relay of each discharge through the series-connected closing contact of the monitoring relay of the given discharge and the second open contacts of the control lnyh relay all previous bits connected to the control input of the device. The drawing shows the electroscheme control distribution switch. The control and distribution relay (CRC) for each distribution channel contains two two-winding relays: control and blocking. The CRC channels are included in a sequential structure, the number of modules (cells) of which is determined by the number of current pulse distribution channels. Channel actuators are connected to the power supply minus. The control relay 1 serving the first channel has a high impedance starting winding 2 and a low impedance holding winding 3 and three groups of contacts: switching 4-6, closing

7-8 and disconnecting 9-10, Interlock relay 11 has a memory (a remote switch or a reed relay with a memory - ferrid) and has two windings - turning 12 and turning off 13 and switching contacts 14-16. The opening contacts 14-15 of the blocking relay 11 are connected plus the power source from the terminal 17k to the starting winding 2 of the control relay 1 connected in series with the holding winding 3, the end of which is connected to the first controlled channel 20 via terminal 18 and the switch 19 of the channel 20. The contacts 14- 16 of the blocking relay 11 is connected plus the power source from terminal 17 to the beginning of its switching winding 13, and the end of the switching winding 2 of the blocking relay 11 is connected to terminal 21 connected by an external jumper to terminal 22, which turn connected to the break contacts 9 and 10 of the first control relay 1. The control relay 23 serving the second channel, similarly to relay 1, has a high-resistance starting winding 24 and a low-resistance holding winding 25 and three groups of contacts: switching 26-28, closing 29 and 30 and opening 31-32i Interlock relay 33 (similar to relay 11) has a memory and has two windings; switching on 34 and turning off 35 and switching contacts 36-38. The opening contacts 36-37 of the blocking relay 33 are connected plus the power source from terminal 39 to the start winding 24 of the control relay 23 connected in series with its holding winding 25, the end of which is connected via terminal 40 and the channel switch 41 to the second controlled channel 42. Closing contacts 36-38 of the blocking relay 33 are connected, plus the power supply from terminal 39, to the beginning of its switching off winding 35, the end of which is connected to terminal 21 Contacts 9-10 of the control relay 1 and contacts 31-32 of the control relay 23

(as well as similar contacts of all possible control relays of the sequential structure of the switchgear assembly) are connected in series, and contacts 31-732. the last control relay 23 (or similar contacts of the last control relay of the CRP serial structure) is connected to the minus of the power supply (terminal 43). Contacts 5-4 of the control relay 1 and contacts 27-26 of the control relay 23 (as well as similar contacts of all possible control relays of the CRP serial structure) are connected in series, and contacts 26-27 of the second control relay 23 are connected to terminal 44, through which it is possible to connect in series included similar contacts control relay serial structure. The contact 6 of the control relay 1 is connected to the beginning of the holding winding 3, and the contact 8 to the beginning of the turning-on winding 12 of the blocking relay 11, the end of which is connected to the minus of the power supply (ground). Similarly, the contact 28 of the control relay 23 is connected to the beginning of the holding winding 25, and pin 30 to the beginning of the turn-on winding 34 of the blocking relay 33, the end of which is connected to the minus of the power source (ground). Distributed current pulses of positive polarity are supplied to the input terminal 45.

The control distribution relay operates as follows.

When power supply voltage is applied to terminals 17 and 39 (keys 19 and 41 are closed, control channels 20 and 42 are intact), control relay 1 is activated, closure contacts 5-6, 7-8 and opening contacts 4-5.9-10. At the same time, the current flows through the circuit: terminal 17, contacts 14-15 of the blocking relay 11, series-connected windings 2 and 3 of the control relay 1, terminal 18, key 19, control channel 20, minus the power supply. The control relay 23 is triggered, closing contacts 27-X8, 29-30 and opening contacts 26-27, 31-32. In this case, the current flows through the circuit: terminal 39, contacts 36-37 of the blocking relay 33, series-connected windings 24 and 25 of the control relay 23, terminal 40, switch 41, control channel 42, MINA of the power source. Due to the fact that the currents flow through the high-resistance windings 2 and 24 of the control relays 1 and 23, their levels in the control channels are small (control current) and the controlled devices do not operate. In this state, the CRC is ready to distribute current pulses over the control channels.

The first positive current pulse arriving for distribution to $ 1, input terminal 45, is applied through contacts 5-6, holding coil 3 of relay 1, terminal 18 and switch 19 to channel 20. In view of the fact that current flows through low impedance coil 3 of relay 1, its level is sufficient to trigger the controlled devices of the channel (operating current). At the same time, the first current pulse is supplied through contacts 7-8 to the turn-on winding 1 of the blocking relay 11, and the current flows further to the power supply minus (through the mass). Relay 11 is activated and remains in this state (memory state), opening contacts 14-15 and closing contacts 14-16. Contacts 14-15 turn off the starting winding 2 of relay 1, but it does not release, because the control pulse current flows through the holding winding 3. Codes 14-16 prepare the control circuit of the switching winding 13 of the relay 11 disconnected in the negative circuit (from terminal 43) by sequentially connected contacts 9-10 and 31-32 of relay I and 23. After the end of the first current pulse, the holding winding 3 of relay 1 is de-energized release the closure contacts 4-5, 9-10 and open contacts 5-6 and 7-8. Contacts 4-5 prepare a circuit for transmitting the next current pulse to channel 42, contacts 5-6 turn off the holding circuit. the coil 3 of the relay 1, contacts 7-8 turn off the starting winding 12 of the relay 11, contacts 9-10 prepare the circuit for turning on the switching windings 13 and 35 of the relay 11 and 33. The second current pulse is received through the contacts 5-4 of the relay 1 and contacts 27-28 relay to channel 42 in a similar way. During the second current pulse, the relay 23 is held in the actuated state and the relay is triggered.33, and after it is released, the relay 23 releases. When the relay 23 is released, the contacts 31-32 are closed, including the negative circuit of the switching windings 13 and 35 (via terminal 43). The locking relays II and 33 switch to the initial state (memory is removed), the closure contacts 14-15 and 36-27 and the opening contacts 14-16 and 36-38, as a result, the starting windings 2 and 24 of the relay 11 and 33 are turned on. Relay 1 and 23 are triggered, and the CRC is ready to repeat the 1 st cycle of current pulse distribution. If any distribution channel is faulty or is deliberately turned off with its key 19 and 41, the control current through windings 2-3 or 24-25 of control relay 1 or 23 does not leak, and it remains in the released state, the transmit pulse intended for it control channel, the next serviceable channel. In this way, the control channel health is monitored. If the power supply is accidentally or deliberately disconnected, all the relays release, and the activated relays 11 or 33 remain in memory mode, i.e. worked condition. Therefore, after the power supply source is turned on again, the control relays of only those channels for which the blocking relays have been released operate. As a result, a new cycle of current pulse distribution does not start from the first channel, but is propelled from the last state that preceded the power source shutdown. The operating condition of the CRC is O1P. 6ft. wholesale. BL. pulse duration and pause between pulses, respectively; the response and release times of the control relay, respectively; response time sr-opt. bl and release the blocking relay, respectively. The proposed device ensures uniform testing of the actuators in each control channel with periodic shutdowns of the power source. Such modes of operation of the control channels ensures the symmetry of their work, excludes the possibility of defending any channel by the number of workouts, which guarantees trouble-free operation of automated systems with grouped sets of actuators.

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Claims (1)

CONTROL AND DISTRIBUTION MULTI-DISCHARGE RELAY DEVICE, containing double-winding control relays by the number of discharges, each of which has a high-resistance starting and low-impedance holding windings, blocking relays by the number of control relays, channel switches by the number of control relays, conclusions for connecting the power source, and the starting and holding the windings of the discharge monitoring relay and the corresponding channel switch are connected in series, characterized in that, in order to increase the reliability of the device, As the blocking relays, two winding relays with memory with on and off windings were used, and one output of the starting winding of the control relay of each category is connected to one> terminal for connecting the power source through the opening contact of the blocking relay of this category, the other terminal for connecting it through the first connected in series NC contacts of control relays of all categories under the keys to one terminal of the switching-off windings of all blocking relays, the other terminal of switching-off kazh dogo heel locking relay through its own closing contact is connected to one terminal for connecting the power supply terminals including one winding of relay interlocking combined and connected to the other terminal to connect the power source, the other terminal of winding consisting rovochnogo ⁼ blocking relay each digit, and the connection point of the starting and holding windings of the control relay of each discharge through a series-connected make contact of the control relay of this discharge and the second disconnecting contacts acts of control relays of all previous bits are connected to the control input of the device.