TY JOUR TI Using the principle of relay-semiconductor communication for controlling points in modern hump interlocking systems KW relay-semiconductor switching KW hump point KW power module KW switching node KW switching circuit KW isolated gate transistor KW small-sized power relay KW check of contacts opening KW breaking capacity KW deadlock switching mode KW check of the integrity of the switching circuit KW automatic point return JO Transport automation research AU Nikitin, A.B. AU Kovkin, A.. PY 2017 IS 3 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"