Method for replacing small pole relay in direct current/alternating current transmission circuits of railway signaling, involves amplifying falling voltage of replacement resistors and energizing increased voltage of replacement relay

摘要

The replacement relay (REL) is removed from the signal-related circuit and is replaced by a circuit arrangement in which replacement resistors are installed instead of the relay coils. The falling voltage of replacement resistors is suitably amplified by a respective amplifier element, and the increased voltage of replacement relay is energized, while the switch replaces the originally existing contact of small pole relay (GBE) of the original circuit.