SU1474778A1 - Device for recording actuation of repeated reconnection automatic control - Google Patents

Abstract

The invention relates to power supply automation devices, in particular, to devices for recording the operation of a double-reclosing automation. The purpose of the invention is to expand the functionality by registering the automatic operation of the cycles. The device has two inputs, one of which connects the output of the automatic reclosing unit (AR) /, and the other the output of the relay protection unit, which is part of the automation. The device contains 2 logical elements OR, 4 logical elements AND, 3 logical elements DELAY, 3 RS triggers and 3 operation counters and processes the input signals according to the logic of two-time automatic reclosing. In this case, the operation counters register either successful activation in the first cycle of automatic reclosing, or successful activation in the second cycle of automatic reclosing, or unsuccessful activation in the second cycle of automatic reclosing. 1 IL.

Description

one

The invention relates to power supply automation devices, namely, automatic activation response recorders, g double reclosures,

The aim of the invention is to expand the functionality by registering the automatic operation of the cycle.

The drawing shows a functional diagram of the device for recording the operations of automatic double-re-activation,

0 The device contains the first terminal 1 for connecting the output of the automatic reclosing unit (AR), as well as the second terminal 2 for connecting the output of the relay protection unit (RZ), the terminal 1 is connected to the S input of the first RS flip-flop G, terminal 2 is connected to the first inputs of the first element AND 4, the first element OR 5 and the second element AND 6, the second input of the element OR 5 is connected to the output of the first element DELAY 7 and the R-inputs of the second RS flip-flop 8 and the third RS flip-flop 9. Output element OR 5 is connected to the R input of three hera 3, the direct output of which is connected to the second input of the AND 4 element, the output of which is connected to the S input of trigger 9, and to the input of the second element DELAY 10, the output of which is connected to the S input of trigger 8, direct output of the trigger 8 connected to the first entrance

1ъ 1

four

00

mi of the second element OR 11, the third element, the fourth element. And 13, Direct trigger output 9 is connected to the second inputs of the element OR 11 and element And 13, as well as to the input of the third element DELAY 14, the output of which is connected to the second input of the element And 6, and the inverse output of the trigger 9 12, The outputs of the elements And 12, And 13 and And 16 are connected respectively with the first counter 15 successful inclusions in the first cycle of the anti-semiconductor block, with the second counter 16 successful inclusions in the second cycle of the automatic reclosing and with the third counter 17 unsuccessful switches in the second cycle of the automatic reclosing,

The device works as follows.

When a block of an RZ line is triggered, on which automatic double-reclosing is installed, a short-time signal appears at terminal 2. This signal goes through the OR 5 element to the R-input of trigger 3, however, the state of trigger 3 does not change. The output signals of the AND 4 and 6 elements also do not change. The trigger is triggered by an AR unit, and a short signal appears at terminal 1. A flip-flop 3 switches and at its output a logical signal 1 appears.

I

In case of successful reclosure, after a delay time exceeding with some margin the response time of the relay protection, a logical 1 signal appears at the output of the DELAY 10 element, and a logical 1 signal appears at the output of the trigger 8 at the first inputs of the elements OR 11 AND 12 AND 13, Since the logical input 1 signal (from the inverse output of trigger 9) appears at the second input of the 12 element, the logical 1 signal appears at the output of the 12 element, and counter 15 regulates the successful AR in the first cycle,) Simultaneously signal logical 1 through the element OR 11 is fed to the input of the element DELAY 7, and after a specified time of return to

g-

the output of the DELAY 7 element is set, the logical ftl signal is set

The trigger triggers 3, 8, and 9 of the device are reset.

ten

15

20

25

f

55

thirty

40

45

In the event of an unsuccessful reclosure until the end of the delay defined by the DELAY 10 element, the RE block is triggered, and a short signal appears at terminal 2. At this, through the AND 4 element, trigger 9 switches in such a way that a logical signal is set at its inverse output O, and the direct output is a logical 1 signal, which goes to the second inputs of the OR 11 and I 13 elements, as well as to the input of the DELAY 14 element. The delay time of the 14 element exceeds the duration of the logical 1 signal from the RH block at terminal 2, which excludes the false the operation of the counter 17 in the first cycle of AR, Then through the element OR 5, the trigger 3 switches to the initial state and at its output sets a signal of logical O, With a delay defined by element 14, the signal of logical 1 appears at the second input of element 6. Then the automatic reclosing unit is triggered, and a short signal appears logical at terminal 1.

In case of successful AR (in the second cycle), the signal of logical 1 through DELAY 10 and trigger 8 enters the first inputs of the OR 11, AND 12 and And 13 elements, Since the second input of the AND 13 element contains a logical 1 and the counter 16 registers a successful AR in the second cycle,

In the case of an unsuccessful reclosure (in the second cycle), until the end of the delay defined by the DELAY 10 element, the relay block is activated, and a short signal of logical 1 appears at terminal 2, Since the first input of the AND 6 element of the logical 1st is already present, this the signal appears at the output of the element And 6, while the counter 17 registers a negative successful AR in the second cycle,

Claims (1)

After a two-time automatic reclosure, the device triggers 3, 8 and 9 are reset to the initial position by a logical 1 signal via the elements OR 11, DELAY 7, the time of which exceeds with some reserve the sum of the second automatic reclosing time and relay protection. Invention Formula A device for registering double-reclosing automatic activation operations, containing a first terminal for connecting the output of an automatic reclosing key, and a response counter, characterized in that, in order to extend the functionality by registering automatic activations by cycles, a second terminal is added to the device, designed for connection to the output of the relay protection unit, two logical elements OR, four elements AND, three elements DELAY, three RS-tr an igger and two counters, the first terminal being connected to the 3rd input of the first trigger, the second terminal to the first inputs of the first and second AND elements, and also the first OR element, the second input of the first OR element connected to the output of the first DELAY element and to the R inputs second and third triggers, the output of the first element OR is connected to the R input of the first trigger, the direct output of which is connected to the second input of the first element AND, the output of which is connected to the S input the third trigger, and with the input of the second DELAY element, the output of which is connected to the S input of the second trigger, the direct output of which is connected to the first inputs of the second OR element, as well as the third and fourth elements AND, the third output of the third trigger the OR element, and the fourth And element, and also with the input of the third DELAY element, the output of which is connected to the second input of the second And element, the inverse output of the third trigger is connected to the second 0 input of the third element And, and the outputs of the third, fourth and second elements And are connected respectively with the first, second and third counters.