SU667916A1 - Device for automatic checking of proper wiring and insulation resistance of bundles - Google Patents

Description

(54) DEVICE FOR AUTOMATIC CONTROL OF INSTALLATION CORRECTNESS AND RESISTANCE OF HARVES ISOLATION

the source catfish through the open-circuit opening of this relay and through the closing contact of another relay.

The drawing shows the functional diagram of the device.

The device contains a control unit 1, a power source 2, an input and conversion information unit 3, switches 4 ,, 4j, 4,. . ., 4k- {, 4, on the relay 5, З, 5,. .., 5. „5, 6 ,, 6, 6, ..., 6. 6k, 7, 7j, 7j,. . „.I, 7“ with windings 8 ,, 8,

8ff. . ., 8,., 8,, 9 9, 9,. . ., 9,. ,, 9 "and 10,

lOj, 10b. . ., 10; f.,, 10.

Consider the device when checking the correctness of the installation on the example of monitoring the circuit between the outputs of switches 4, 4. The input signal and information conversion unit 3 receives a control signal to the windings 8, 8j, 9 (or 10 depending on the desired polarity) and Yul-c ( or) relays 5, 5, 6 (7) and 7k- /, (6, - /), respectively. When the relay 6 is triggered, the output of the switch 4 is connected to one of the poles of the power source 2, and when the relay IK-J is triggered, the output of the switch 4D is connected to the other pole of the power source, i.e. The power supply voltage is applied to the outputs of the switches 4 and 4x. As a result, the switching element in the tested product is actuated and a circuit is formed between the outputs of the switches 4 / and 4j. Relays 5 / and 5 are triggered and connected to the inputs of the control unit 1 via buses I, 12, relay contacts 5 /,, 5 controlled circuit C of bus 12 through the contacts of relay S, .. ,, 5, 5, the voltage goes to bus 13 and To the corresponding input of the control unit 1, which triggers and generates a signal of the presence of the monitored circuit. It is fed to the input and conversion unit 3, where a trip signal is generated for the relay Si, 5, 7, / and connected to the control unit of the next monitored circuit. In case of absence or damage of the controlled circuit, the device generates a fault signal.

When checking the insulation resistance of the harnesses through the outputs of the switches 4, 4, 4,. . . 4x- /. 4jrH relay contacts 5 /, 5, 5j,. . ., 5dch, 5k all electrically disconnected circuits of the tested product are connected to buses 11, 12, with the circuit connected to the output of switch 4 {, connected to the AND cord, and all other circuits connected

bus 12. Control unit 1 measures the insulation resistance between busbars 11 and 12, i.e. between the circuit connected to the switch output

4 /, and all other circuits connected via the outputs of the switches 4, 4 ,,. . ., four,. 4k, relay 5 ,. five, . . ., SXY, 5 / g to H1ine 12. If the insulation resistance of the circuit being tested is normal, the input and information conversion unit 3 disconnects the tested circuit from bus 11 by disconnecting the corresponding relay 5.

The connection of the switch outputs to the power supply gives the device the ability to control the correctness of the installation and the resistance of the ISOLATION circuits, which are formed in the tested product by the contacts of the switching elements.

Claims (2)

1. USSR Author's Certificate No. 309319, cl. G 01 R 31 / 02.02.04.69. 2. USSR author's certificate If 474770, cl. G 01 R 31/02, 26.0 .73. ; eleven l: / J 6, v