ELECTRIC DRIVE SWITCH CONTROL MODULE AND ELECTRIC DRIVE MECHANISM CONTROL METHOD Russian patent published in 2019 - IPC B61L7/00 

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of railway automation for control of an electric point machine at microprocessor centralization of arrows and signals. Module comprises switch electric drive switch, which input is connected to safe relay output, and output is connected through current measurement circuit, which includes current transformer, to inputs of safe transfer relay to "plus" and safe relay of transfer to "negative" with possibility of control by means of selection relay, real-time timers and pumping circuit for opening of safety relays. In addition, there is a ground fault detector, which includes a grounding error simulation relay, wherein the detector is connected to outputs of operating circuits arrow-lines, the module is also equipped with a diode interrogation circuit and a polling circuit of contacts state.

EFFECT: increased reliability and service life of electric drive.

2 cl, 11 dwg