SU1309305A1 - Pulse counter - Google Patents

Abstract

The invention relates to a pulse technique and can be used in various devices of discrete automation. The purpose of the invention is simplification. The device contains cells 1, 2, 3, 4, 5, thyristors 6, relay 8, switching capacitors. To achieve this goal, an additional relay 28, additional thyristor 27, and additional resistor 29 are introduced into the device. 1 sludge. 51 (L with about with with about e

Description

The invention relates to a pulse technique and can be used in various devices of discrete automation.

The aim of the invention is to simplify.

The drawing shows a schematic diagram of a pulse counter.

The device contains cells 1-5, thyristors b, common bus 7, relay 8, power bus 9, switching capacitors 10, switching groups 11-14, relay 8 first 1, second 2, third 3, fourth 4 cells, respectively, with their switching contacts 15-18, opening contacts 19-22 and closing contacts 23--26, respectively, additional gyristor 27, additional relay 28, additional resistor 29, switching group 30 of additional relay 28, with switching 31, opening 32 and closing 33 contacts, respectively, closing groups 34-38 cells 1-5 respectively, the load elements 39-48, the closing group 49 of the additional relay 28, the second closing group 50 of the relay 8 of the first cell I, the pulse transformer 51 with the first 52 and second 53 terminals, the secondary 54 and the primary windings 55.

In the counter impulses containing an annular counting device, in each cell 1-5 of which the cathode of the thyristor 6 is connected to the common bus 7, the anode through the winding of the relay 8 to the power bus 9 and to the anode of the thyristor 6 of the neighboring cell, The control electrode of each cell 2-5, except the first cell 1, is connected respectively to the closing contact 23-26 of the switching group 11-14 of relay 8 of the previous cell 1-4. The control electrode of the thyristor 6 of the first cell 1 is connected to the disconnecting contact 19 of the switching group 11 pe. ie 8 of the first cell 1, respectively, the switching contact 15-17 of the switching group 11 -13 of the relay 8 of cell 1-3 is connected to the disconnecting contact 20-22 of the switching group 12-14 of the next cell 2-4, the switching contact 18 of the switching group 14 of the relay 8 of the last but one cells 4 are connected to the first terminal 52 of the secondary winding 54 of the pulse transformer 51, the primary winding 55 of which is an input to the device, the second terminal 53 of the secondary winding 54 of the pulse transformer 51 is connected to a common bus 7.

The cathode of the additional thyristor 27 is connected to the common bus 7, the anode through the winding of the additional relay 28 is connected to the power supply bus 9, which is connected to the switching contact 31 of the switching group 30 of the additional relay 28, the disconnecting contact 32 of which is connected to the first terminals of ) elements 39-43, the closing contact 33 - to the first conclusions of the second group of actuating elements 44-48. The second terminals of the actuators 39 and 44, 40 and 45, 41 and 46, 42 and 47, 43 and 48 are pairwise connected and connected via locking contact groups 34-38 of the relay 8 cells 1-5 to the common bus 7, controlling The electrode of the additional thyristor 27 is connected to the power bus 9 through the closing group 49 of the relay 8 cell 5, the second closing group 50 of the relay 8 cell 1 and an additional resistor 29.

The counter works as follows. When the supply voltage is on lines 7 and 9, the meter is prepared for operation. When the first counting pulse arrives at the input from the pulse transformer 51, the thyristor 6 is switched on along the control circuit

0 cell 1 and connects relay 8 cell 1 to Tina 9 and 7. Relay 8 cell 1 is turned on and with its switching contact 15 connects output 52 of transformer 51 to control electrode of thyristor 6 cell 5 ki 2. Closing group 34 turns on actuator 39. On arrival The second counting pulse triggers the thyristor 6 of cell 2, and the relay 8 of cell 2 is turned on, which connects the switch with its switching contact 16

The Q electrode of the thyristor 6 of the cell C to the output 52 of the transformer 51 simultaneously switches off the thyristor 6 of the cell I by means of the switching capacitor 10, disconnects the operating element 39 from the power lines, and connects the actuator. emet11t 40 and

5 etc Upon receipt of the fifth counting pulse, the thyristor 6 of cell 5 and the relay 8 of cell 5 are turned on, the contacts of group 38 turn on an actuating element 43, simultaneously by means of a switching capacitor 10 connected between cells 5

0 and 4, the thyristor 6 and the relay 8 of the cell 4 are turned off, the actuator 42 is turned off, the output 52 of the transformer 51 connects 1 the thyristor 6 of cell 1, and also the group 49 closes, preparing the activation of the thyristor 27. When the sixth counting pulse arrives, the thyristor 6 turns on and relay 8 of cell 1, a switching contact 15 connects the input circuit to the thyristor 6 of cell 2, simultaneously by means of a switching capacitor 10,

0 is connected between cells 1 and 5, the thyristor 6 of cell 5 is turned on. At that moment in time, when group 50 of relay 8, cell 1 is already closed, a. group 49 of relay 8 of cell 5 is not yet open, thyristor 27 and relay 28 are triggered, switching contact 31. Group 34 of relay 8 is closed, and actuator 44 is connected to the power buses. Next, the operation is similar.

1309305

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Claims (1)

The invention of the device, the second output of the secondary winding- A pulse counter containing a circuit for switching a pulse transformer of connection, ring-counting device, starting with a common busbar, the cathode additionally, each cell of which the thyristor thyristor cathode is connected to a common bus, is connected to a common anode — through an anode through the winding of an additional relay; a relay coil to the power bus and through a com- connection to the power bus, which connects a capacitor to the thyristor anode and is connected to the change-over contact The control switch of the electric relay group of the additional retractor of each cell, except for the first one, the disconnecting contact of which is connected to the closing contact, is switched to the first terminals of the first group of the previous group of the previous cell, actuators, the closing one characterized in that in order to simplify the contact, to the first conclusions of the second group while maintaining the number of states C4ej of the executive elements, and the control electrode of the thyristor of the first circuit of the load elements B is clean, It is responsible for the opening contact of the number of cells of the counting device, the switching group of the relay of the first - 5 second outputs of the actuators, switching the contact of the switching of the first and second groups of executive elements of the relay of each cell, except for the components of the last and two the last one is connected to the breakers through the corresponding opening contacts of the tangential contact of the switching group of contact groups of the relay cells of the next relay, the starting circuit of the high-voltage device to the common busbar, A complementary in the form of a pulse transformer-20 electrode of an additional thyristor, a switching contact is switched to a power supply pin through a successive relay group of the penultimate switching cell connected to the first terminal of the secondary contact of the relay of the last cell, the second winding of the pulse transformer, - the closing contact group of the relay whose primary winding is the input of your cell and an additional resistor.