SU1339688A1 - Apparatus for controlling magnetic stator - Google Patents

Abstract

The invention relates to electrical engineering and can be used in remote control devices and in electric actuators of industrial mechanisms. The aim of the invention is to explore the operational capabilities of the device. To compensate for magnetic starter 2, a time relay 23 n three intermediate relays 7, II and 18 are used. The device provides start, trip and emergency shutdown of the magnetic starter. In addition, the switch-on mode of the actuator is provided for a fixed time determined by the delay of the time relay and the automatic switching on of the actuator in case of a short-term disappearance or a deep decrease in the supply voltage. 1 il. (L with so with O5 OO oo

Description

The invention relates to electrical engineering and can be used in remote control devices and in electric drives of industrial mechanisms.

The aim of the invention is to expand the operational capabilities of the device.

The drawing shows a circuit diagram of a device for controlling a magnetic starter.

The device for controlling the magnetic starter contains a button 1 (or a group of parallel-connected buttons 1) of the control, a winding 2 of the actuator with three closing 3-5 and one 6

house 27, through the second closing contact 13 of the second intermediate relay - with another output of the winding 11 of the second intermediate relay, and through the disconnecting contact 22 of the third intermediate relay - with another output of the winding 2 of the actuator. Another terminal of the winding 23 of the time relay is connected to one output of the third closing contact 21 of the third intermediate relay, the other output of which is after 10 connected third closing contact 5 of the actuator and third closing contact 14 of the second intermediate relay to output 27, and through series-connected disconnecting contact 6 of the actuator

intermediate relay - with a different output of the second disconnecting contact 10 of the first intermediate relay.

contacts, winding 7 of the first intermediate -j and third disconnecting contact 17 of the second relay with one closing 8 and two opening 9 and 10 contacts, winding 11 of the second intermediate relay with three closing 12-14 and three opening 15-17 contacts, winding 18 the third intermediate relay with three closing 20 19-21 and one disconnecting 22 contacts and winding 23 time relays with time delay when disconnected with closing 24 and disconnecting 25 contacts.

One pins of the coil 2 of the starter, around the coil 7, 11, and 18 of the intermediate relay and the winding 23 of the time relay are combined and connected to pin 26 for connecting a power source, the other coil of the 7 of the first intermediate relay is connected to

The device works as follows. When voltage is applied to the terminals 26 and 27, the coil 18 of the third intermediate relay is energized across the circuit pin 27 - pin 25 - coil 18 - pin 26. The relay operates, opens contact 22, closes contacts 19-21 and becomes self-locking. The winding 23 of the time relay across the circuit output 27 - contacts 10, 17, 6, 21 - winding 23 - output 26 receives power. The time relay trips, opens contact 25, closes contact 24, becomes

pin 27 for connecting the source of the i-Q self-blocking and preparing the power circuit via button 1 (or parallel group for turning on the actuator. Device for connecting the control buttons 1), another winding terminal 11 of the second intermediate relay is connected to terminal 27 through the first contact 3 actuators and the first 35 weft relays through the circuit output 27 - button disconnecting contact 9 of the first intermediate - 1 - winding 7 - output 26. The relay of the middle relay, another output of winding 18 triggers, opens contacts 9 and 10 and closes 8. Gets a contact power winding 2 of the actuator output circuit 27 - contacts 16, 20, 15, 8 - winding 2 - terminal 26.

A contact 19 of the third interrupter opens the actuator, opens the contact of the exact relay, one output of the second gap-6 and closes contacts 3-5. In this disconnecting contact 10 of the first intermediate circuit, the power supply of the winding 23 of the relay is relayed to the output terminal 27, and the other, the contact 8 of the first circuit is bridged through the parallel connected intermediate relay and the circuit is made of the closing contact 8 of the first intermediate contact. second intermediate relay.

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LASTING in the first steady state AND READY TO start.

When the control button 1 is pressed, the winding 7 of the first intermediary intermediate relay is connected to pin 27 via the disconnecting contact 25 of the time relay, the first shunted relay and the second closing contact 4 of the actuator to the other coil terminal 2 of the actuator. One output of the closing contact 24 of the time relay is connected via the first closing contact 12 of the second intermediate relay to output 27, and through the first disconnecting contact 15 of the second intermediate relay to another output of the second disconnecting contact 10 of the second intermediate relay, the other output of the closing contact 24 of the time relay 50

If the control button 1 is held down, after time delay, contact 24 is opened, contact 25 of the time relay is closed, and the power supply circuit of coil 2 of the actuator is broken. The starter shuts off, contacts 3-5 open, and contact 6 closes. When the control button 1 is released, coil 7 of the first interim relay loses power, which, when turned off, opens contact 8 and closes contacts 9 and 10.

consequently, the connected second short-circuit 55 is energized by the winding 23 of the time relay, the main contact 20 of the third intermediate switch which is activated, opens contact 25 and

closes the contact 24. The command “Push. The device is in the first

the relay and the second disconnecting contact 16 of the second intermediate relay are connected to terminal 27, through the second closing contact 13 of the second intermediate relay to another terminal of the winding 11 of the second intermediate relay, and via disconnecting contact 22 of the third intermediate relay to another terminal of the winding 2 actuator. Another terminal of the winding 23 of the time relay is connected to one output of the third closing contact 21 of the third intermediate relay, the other output of which is connected through the third closing contact 5 of the actuator and the third closing contact 14 of the second intermediate relay to output 27, and through the connected disconnecting contact 6 of the actuator

intermediate relay - with a different output of the second disconnecting contact 10 of the first intermediate relay.

and the third break contact 17 second

weft relays on the output 27 circuit - button 1 - winding 7 - output 26. The relay trips, opens contacts 9 and 10 and is lounging in the first steady state AND READY TO start.

When the control button 1 is pressed, the winding 7 of the first intermediate relay is energized and a circuit is prepared to turn on the second intermediate relay.

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0

If the control button 1 is held down, after time delay, contact 24 is opened, contact 25 of the time relay is closed, and the power supply circuit of coil 2 of the actuator is broken. The starter shuts off, contacts 3-5 open, and contact 6 closes. When the control button 1 is released, coil 7 of the first interim relay loses power, which, when turned off, opens contact 8 and closes contacts 9 and 10.

steady state and ready for the next launch.

If, after the actuator trips, release control button 1 before opening time relay contact 24, then the winding 7 of the first intermediate relay loses power, the relay is disconnected opens contact 8 and closes contacts 9 and 10. The winding 11 of the second intermediate relay receives power through the output 27 output - contacts 9 and 3 - winding 11 - terminal 26. The relay operates, opens contacts 15-17 and closes contacts 12-14. The winding 23 of the time relay across the circuit output 27 - contacts 14, 5, 21 - winding 23 - output 26 receives power. At the same time, the contact 24 of the time relay is in the closed state. The start command is executed, the device is in the second steady state, the drive is operating normally.

To execute the Stop command, it is necessary to press the control button 1 again. In this case, the winding 7 of the first intermediate relay receives power, which, having triggered, opens contacts 9 and 10 and closes contact 8. The winding 2 of the actuator disconnects power, opens contacts 3-5 and closes contact 6, while the winding loses power 23 time relays.

If the control button 1 is held in the pressed state, after time delay, the contact 24 is closed, the contact 25 of the time relay is closed and the power supply circuit of the winding 11 of the second intermediate relay is broken. A relay opens and opens contacts 12-14 and closes contacts 15-17. When the control button 1 is released, the winding 7 of the first intermediate relay loses power, which, having turned off, opens contact 8 and closes contacts 9 and 10. Winding 23 of the time relay receives power, which opens contact 25 and closes contact 24. The command "Stop The device is in the first steady state and is ready for the next start.

If, after the loss of power by the winding 23 of the time relay, release the control button 1 before opening the time relay contact 24, then the winding 7 of the first intermediate relay loses power, the relay turns off, opens contact 8 and closes contacts 9 and 10. After a time delay, contact 24 opens contact 25 of the time relay closes and loses power, winding 11 of the second intermediate relay. The relay switches off, opens contacts 12-14 and closes contacts 15-17. In this case, the winding of the time relay 23 is energized, which operates, opens contact 25 and closes contact 24. The command "Stop, the device is in the first steady state and ready for the next start is executed.

0

five

0 5

0

five

0

five

In the event of a disappearance of or a 1 d by a decrease in the supply voltage during the operation of the drive, winding 2 actuators, windings II and 18 of the second and third intermediate relays, and winding 23 pe. i.e. time loses power. The starter and relay are disconnected, contacts 3, 5, 14, 14, 19–21 are molded and contacts 6, 15, 17, and 22 closed, and a circuit is prepared for switching on the starter. Contact 24 of the time relay is turned off with a time delay determined by the preliminary reference. If the supply voltage is restored before the time delay expires, then winding 2 actuators through the circuit output 27 - contacts 10. 15. 24, 22 winding 2 - output 26 receives power. The actuator operates, opens contact 6, closes contacts 3-5 and becomes self-locking. The winding I 1 of the second intermediate relay across the circuit output 27 - contacts 9, 3 - winding 11 - output 26 receives power. The relay operates, opens contacts 15-17 and closes contacts 12-14. After the time delay, contact 24 is opened and contact 25 of the time relay is closed, while winding 18 of the third intermediate relay is receiving power through circuit output 27 - contact 25 - winding 18 - output 26. Pe.ie triggers, opens contact 22, closes pins 19-21 and become self-blocking. The winding 23 of the time relay, which triggered, opens contact 25 and closes contact 24, receives power. A motor start starts. The | K) drive is in the second stable state, the drive is operating normally.

This way, the invention Nos. 1.: 1it to use the device in electric drives, where it is necessary to perform the functions, "Push," Ston. emergency | | stopping the drive, and at the same time, will provide, if necessary, automatic automatic switching on of the drive in case of a short-term disappearance or deep decrease of the voltage in the supply network.

Claims (1)

Invention Formula A device for controlling a magnetic starter, containing a button (or a group of buttons connected in parallel), leads for connecting an actuator winding 0 and two locking and one locking contacts, a first intermediate relay with one locking and two locking contacts, a second intermediate relay with two za.1yakayushch11mi kontaktami, the third pro.intermediate relay with the closing and opening contacts, a time relay with the closing and opening contacts, a time relay with the closing contact I. and a time delay at k.chyu5 and terminals for connecting the power source, one terminal for connecting the starter winding and one terminal of all intermediate and time relays are combined and connected to one terminal for connecting the power source, the other terminal of the first intermediate relay winding is connected to another terminal for connecting the power source via a button (or a group of buttons connected in parallel) of the control, and the other end of the winding of the second intermediate relay, via serially connected leads for connecting the first end contact The actuator and the first disconnecting contact of the first intermediate relay, one output of the second disconnecting contact of the first intermediate relay are connected to another output to connect the power source, and the other its output to one output of the closing contact of the first intermediate relay, terminated by the leads to connect the second closing contact of the actuator, characterized by the fact that, in order to expand its operational capabilities, conclusions have been introduced into it to connect the third closing contact of the actuator, the second The commutator relay is equipped with third interrupting and three normally closed contacts, the third intermediate relay has second and third interrupting contacts, and the time relay is equipped with a normally closed time open contact, the other winding terminal of the third intermediate relay is connected to the other output terminal time relay contact shunted by the first make contact of the third intermediate five 50 0 relay, one output of the closing contact of the time relay through the first closing contact of the second intermediate relay is connected to another output for connecting the power source, and through the first disconnecting contact of the second intermediate relay to another output of the second closing contact of the first intermediate relay, another output of the closing contact of the time relay through serially connected second closing contact of the third intermediate relay and second disconnecting contact of the second intermediate relay connected to the other output l connecting the power source, through the second closing contact of the second intermediate relay, to another output winding of the second intermediate relay, and through the opening contact of the third intermediate relay to another output of the closing contact of the first intermediate relay and to other leads to connect the second closing contact of the actuator and winding of the actuator, the other winding terminal of the time relay is connected to one terminal of the third closing contact of the third intermediate relay, the other terminal of which through series the connected leads for connecting the third closing contact of the actuator and the third closing contact of the second intermediate relay are connected to another output for connecting the power source, and through the serially connected leads for connecting the opening contact of the actuator and the third breaking contact of the second intermediate relay relay.