DEVICE FOR DELAYING RELEASE OF ELECTROMAGNETIC ACTUATOR RELAY ARMATURE Russian patent published in 2000 - IPC

FIELD: railway transport; automatic and signalling. SUBSTANCE: invention is designed for delaying release of armature of electromagnetic actuator relay coupled with supply source through control relay contacts. Device has capacitor, ac generator, ac amplified, transformer and rectifier. Plus pole of supply source is connected through closed front or resting contact of control relay to supply minus terminal of ac generator and through diode, to supply plus terminal of ac generator. Capacitor is connected to supply plus terminal of generator and to minus terminal of supply source. Output of ac generator is connected with input of ac amplified. Output of ac amplifier is coupled through transformer and rectifier with terminals of winding of electromagnetic actuator relay connected to DC supply source through other contacts of control relay. EFFECT: improved stability of delaying. 1 dwg