Inductive safety device for protecting railway traffic has an electromagnetic (EM) coil in an electric circuit worked by a switch and near a rail in an EM range of influence from contact coils

摘要

Fixed in an area near to the coil (3) of an induction safety device (ISD), a proximity switch (6) is an electric oscillating circuit with an inductive resistor/control coil (8), a capacitor, a power supply and a test device for recording electromagnetic curb on its inductive resistor. The ISD fits on a signal for emergency braking. Its power circuit is closed by operating the signal.