SU1695446A1 - Trouble shooter for series-connected valves - Google Patents

Abstract

The invention relates to electrical engineering. The aim of the invention is to increase reliability. When punctured valves are present, the charge of capacitor 17 is higher than of capacitor 20, and when they are discharged through transformer 24, a pulse signal is formed on the output winding, and its amplitude depends on the number of valves punched. the signal enters the actuator 30 to decrypt its amplitude and issue a signal for operational control. 2 Il.

Description

and the negative output terminal of the third-fifths to the entrance of the executive body.

TO

1 submarine

and

four,

F / 3

2

Claims (1)

Claim A device for monitoring the malfunction of series-connected valves <_________ equipped with control pulse generation units, each containing protective circuits, each intended for connecting in parallel with the corresponding valve, an output transformer, an actuator, a controlled key included in the diagonal of an asymmetric bridge formed by a high-voltage and low-voltage shoulders of the protective circuits of the valves and the voltage divider, and one control input of the managed key is connected to the output of the sensor the reverse current of the valves, intended for sequentially connecting a low-voltage arm to the valve circuit, and the other control input of the controlled key is designed to connect to the output of the control pulse generation unit, characterized in that, in order to increase reliability, three rectifiers, six capacitors, two diodes are introduced , a threshold switch, a pulse transformer, four limiting resistors, a controlled switch and a variable resistor, and in series with the protective circuit of the low-voltage shoulder valve, including a first rectifier shunted by the first capacitor, a second rectifier shunted by the second capacitor is connected in series with the voltage divider of the low voltage arm, the connection point of the first and second rectifiers through the third rectifier shunted by the third capacitor is connected between the power terminal of the low voltage arm valve and the reverse current sensor, positive output terminal the first rectifier through the first limiting resistor is connected to the anode of the first diode and the first output of the fourth a capacitor whose second output is connected to the negative output of the first rectifier, the positive output of the second rectifier through the second limiting resistor is connected to the anode of the second diode and the first output of the fifth capacitor, the second output of which is connected to the negative output of the second rectifier, to the second output of the fourth capacitor and through a controlled key - to the engine of a variable resistor, one and the other of which leads through counter-wound primary windings of the output trans ormatora connected to the cathodes of the first and second diodes, a positive output terminal of the third rectifier via a third limiting resistor connected to the first terminal of the sixth capacitor and to the input of a threshold switch, the output of which, through the 16) 95446 therefore connected the primary winding of the pulse transformer and the fourth limiting resistor is connected to the second output of the sixth capacitor and the negative output of the third to 5th of its rectifier, the secondary winding of the pulse transformer is connected to the control input of the controlled key, and the secondary winding of the output transformer to the input of the executive body.