FIELD: electricity.
SUBSTANCE: device comprises a LED and an electrical circuit including a series-connected resistor, a winding of the first electromagnetic relay, and a diode. It is additionally equipped with the second and the third electromagnetic relay and a microcontroller designed for processing signals from voltage sensors of the contact system. The winding of the second relay is connected to the output of the microcontroller. The LED is connected in series with the contacts of the first and second electromagnetic relays. In parallel with the above mentioned electrical circuit, an electric circuit is connected, containing a contact of the third electromagnetic relay, which performs the functions of monitoring the presence of the supply voltage of the electric train control panel.
EFFECT: providing the possibility of indicating the presence of high voltage when the digital circuits are not working and the control panel is switched off.
1 dwg
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