SU1474784A1 - Alarm of presence of water in electric generator - Google Patents

Abstract

This invention relates to electrical engineering, in particular to protection devices. The aim of the invention is to prevent a generator from malfunctioning when an air cooler leaks by generating a signal to automatically turn off the generator. The device contains sensors 1, alarm relay 2, alarm lamp 3, switch 4, electromagnetic relays 5, 6, 7 and 11, pulse counter 8, time relay 9, element I 10, direct current source 12. When water enters the relay generator 2 starts to operate in a pulsed mode; in the same mode, relay 5 will operate. With the switching frequency of relay 5, its contact 24 will receive pulses at the counting input of counter 8 and at the input of time relay 9. If during the time of setting the time relay 9 at the output of the counter 8, a pulse occurs, then through the element 10 it will trigger the relay 11 and close the contacts 25 and 26. 1 sludge.

Description

contact 19 (pin 19 constitutes 45 mode and continuously burning lamp 3

relay self-blocking circuit 7); the first

the output of the power circuit of the counter 8 through

serially connected pins

14, 17 and 20; first winding pin

relay 9 through pin 21; fourth

relay 1 1 through its own closing

contact 22,

The second terminals of the windings of the relay 6, 7, 9 and 11 and the second output of the power supply circuit of the counter 8 are connected to the second output 23 of the power supply 12.

The inputs of counter 8 and relay 9 are combined and connected via pin 24

will blink. In the same mode, relay 5 will operate,

After the relay 5 triggers once, the relay 7 will operate, it will become 50 for self-blocking via the contact circuit 15-17 (closed) - 19 (closed) and through the closed contacts 20 and 21 will connect the counter 8 and the time relay 9 to the source 12.

With the switching frequency of the relay 5, pulses will be sent to the counting input of the counter 8 and to the time relay 9 through its closing contact

55

will blink. In the same mode, relay 5 will operate,

After the relay 5 is triggered, the relay 7 will operate, will become self-locking along the circuit of contacts 15-17 (closed) - 19 (closed) and through the closed contacts 20 and 21 will connect the counter 8 and the time relay 9 to the source 12.

With the switching frequency of the relay 5, pulses will be sent to the counting input of the counter 8 and to the input of the time relay 9 through its closing contact,

If for a set time (relay 9 is installed) the specified number of pulses will go to the input of the counter 8, the output of the counter 8 will receive a pulse and the relay 9 will work, i.e. at the input of the elements I 10 are signals in the vehicle, and under the effect of the signal at its output it will work1 and will turn on self-blocking via contact 22 of the relay 11.

The activation of the relay 9 also leads to the opening of the contact 14 and the depletion of all elements except the relay I. The closure of the contacts 25 and 26 allows generating the Alarm signal (for transmission to the control point) and the signal for automatic generator stop.

The proposed device is relatively simple and is made on highly reliable elements.

The principle of forming a signal at its output, based on the operation of the device, by counting the number of pulses that have arisen at the output of the alarm relay over a set period of time, makes it possible to virtually exclude the appearance of a signal.

The operability of the device was tested on a circuit that generates a signal at the output after passing three pulses within seven seconds since the first alarm relay was triggered.

The use of the device provides the ability to automatically turn off the generator when water enters it and the Avariya signal is generated, i.e. the possibility of a generator failure with the consequent execution of a large amount of repair work is prevented.

Claims (1)

Particularly noted advantages are manifested when using the device on unpacked objects. Invention Formula The alarm device for the presence of water in the electric generator, which contains a sensor with outputs, is connected to the inputs of the alarm relay connected to the power source, and 0 five 0 five 0 five 0 five the relay output is connected to a signal lamp, characterized in that, in order to prevent a generator from malfunctioning when an air cooler leaks by generating a signal to automatically turn off the generator, it is additionally equipped with four electromagnetic relays, a pulse counter, an AND element, a time relay and a two-position switch, through The winding of the first relay is connected to the output of the alarm relay, while the first winding of the second relay is connected to the first output of the power source time relay and parallel connected first closing contacts of the first and second relays, the first winding terminal of the third relay through a sequential disconnecting contact of the time relay, the second closing contact of the second relay and parallel opening contacts of the first turnip and its own first closing contact i first output of the meter power circuit impulses through connected in series specified disconnecting contact of the time relay and the second closing contacts of the second and third relays, the first output circuit pitash time relay through the third closing contact of the third relay, the first output winding of the fourth relay through its own closing contact, and the second output winding of the second, third and fourth relay and the second terminals of the pulse counter power supply circuits and the time relay combined and connected to the second output power supply, while the inputs of the pulse counter and the time relay are combined and connected to the first output of the power source through the second closing contact of the first relay, the outputs of the pulse counter and the time limit are connected to the first and second inputs of the element I, the output of which is connected to the first terminal of the winding of the fourth relay, the closing contacts of which are the outputs of the device.