TY JOUR TI Using the small-sized power relays for design of safe interface devices within the computer systems of railway automation KW functional generator KW small-sized power relay KW relay for printed mounting KW relays that are not devices of the first reliability class KW check of contacts opening KW resource of relay KW deadlock switching of contacts KW relay-semiconductor switching circuit JO Transport automation research AU Nikitin, A.B. AU Kovkin, A.. AU Manakov, A.. PY 2018 IS 4 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"