RELAY CONTROL DEVICE 8E123M DURING FAIL-OVER TEST Russian patent published in 2020 - IPC G01R31/327 G01M7/00 G01R23/00 G05D23/02 

FIELD: test.

SUBSTANCE: invention relates to test equipment, in particular to relay control devices, and can be used for control of electromagnetic relays 8E123M. Technical result is achieved by the disclosed relay control device during fail-over testing, comprising DC sources, a panel, voltage supply cable, milliammeter, millivoltmeter, variable resistance, batch switch, shunt, in addition connected in parallel to each relay contact series-connected signalling lamp of control of contacts of relay and resistor, cable for connection of pair of signal lamp for control of closing contacts of relay and resistor to contacts of each relay, in panel there is additionally plug connector for connection of cable of connection of pair of signal lamp for monitoring contacts of relay contacts and a resistor to the contacts of each relay, wherein the number of pairs of the relay contact monitoring signal light lamp and the resistor is equal to the number of relay contacts, wherein all the relay contact monitoring lamps are placed on the front panel of the panel, and all resistors are inside the panel.

EFFECT: technical result consists in improvement of reliability of fact of closing contacts of each relay after supply of control voltage to relay coils.

1 cl, 5 dwg